Database programming jobs

We are looking for an italian C# programmer (or somebody who live in Italy) with experience in managing electronic invoices for public administration who is able to create an application for bulk uploading of in...somebody who live in Italy) with experience in managing electronic invoices for public administration who is able to create an application for bulk uploading of invoices using the “FatturaElettronica” library The application must allow for the uploading of invoices as zip files, the deserialization of all invoices, and the writing of data to SQL Server database tables. The project involves the creation of a DB diagram to host the invoice data and a log table with the complete result of the processing/outcome of each individual invoice.

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I have a collection of programing college subjects questions which u have to find the answers for them and Record. Your job is to narrate each script in a clear, engaging tone, export the takes as MP3 files, Will send the materials with an audio sample to match with

Project: AI-enabled ERP & CRM for educational institutions. Role: Full Stack Developer (2+ openings). Start Date: February 23, 2026. Type: Individual contributors only (No Agencies/Consultancies). Experience: 4 & Above Technical Stack - Frontend: Angular 20+ - Backend: Node.js 20+ | framework - Database: PostgreSQL Key Responsibilities - Ship high-quality features for ERP and CRM product lines. - Build secure APIs and modern frontend architectures. - Translate administrative requirements into technical solutions. - Optimise PostgreSQL for high-concurrency environments. Compensation Starting from $1,000 USD / Month (based on expertise).

...faster on every single page. Here is what I want to achieve: • Design overhaul – apply a clean, contemporary theme, refine the colour palette, and showcase high-impact product imagery without sacrificing performance. • Site-wide speed optimisation – compress and serve images in next-gen formats, implement caching and a lightweight page-builder (or migrate away from any bloated one), fine-tune database queries, and configure a CDN so the homepage, product pages and every other view hit top scores on Google PageSpeed. • Smart internal linking – tighten up menus, breadcrumbs and cross-links so visitors reach key products in fewer clicks, boosting conversions. • Social media automation – install and configure a plugin that auto-publi...

I need a sizeable, up-to-date database of medium-sized U.S. companies that spans every sector—healthcare, retail, technology, and any other field you can reach. For every record I only require two data points: a direct phone number and a working email address and company name and person name. Accuracy matters more than sheer volume, so I’ll be checking for bounced emails, disconnected lines, and duplicates before releasing final approval. Please deliver the file in Excel. Include one row per company contact, clearly labeled columns, and make sure the data has been gathered ethically and is compliant with U.S. privacy laws. I will consider the job complete once: • at least 95 % of emails pass validation tools such as ZeroBounce or NeverBounce, • phone number...

Hello! I'm looking for help to streamline my study workflow inside Notion. The idea is simple: every time I jot down a new note, it should land in a master database that shows up in a clean table view. From there, the same information turns into a flashcard formatted as a clear Question & Answer pair. Let me know if you can help!

...vehicle speed exceeds the set threshold (I will provide the hex address for that flag if needed), – Exit cleanly on button release or normal braking to avoid torque intervention faults. • Supply all edited segments, checksum-safe, along with a short document describing the changed addresses, added RAM variables, and any diagnostic trouble codes that are masked or reused. • Return an IDA database (.i64) with your comments intact plus a ready-to-flash patched file so I can validate on bench before road testing. Acceptance criteria: the engine holds boost on decel, no checksum errors are raised on OBD scan, and cruise-control continues to function normally when anti-lag is inactive. i have a WinOLS definition file for all the maps in the file if needed and ...

...signature on loading screen (very small) Abstract eye-inspired logo (intense but simple) Platform Requirements Please specify which you recommend: Flutter React Native Native iOS/Android Other App must be scalable for future features: Online multiplayer In-app purchases Expansion packs Premium version Shareable results Social media integration What We Will Provide Full 52-question database Game rules Category breakdown Branding direction Fast communication Clear feedback Deliverables Required Fully functional mobile app (iOS & Android) Clean UI design Source code Admin access / handover Basic documentation - including source docs to recreate as a manual card game Assistance with App Store / Play Store submission (if possible) Budget & Timeli...

...Proxmox installation that now needs to be turned into a production-ready virtualization cluster. The end goal is straightforward: host several public-facing services while keeping administration simple and repeatable. Scope of work • Provision 4-6 Ubuntu-based guests (mix of KVM VMs or LXC containers—whichever fits best per role). • Produce three reusable gold images: Web server template, Database server template, and Mail server template. Each must boot cleanly, auto-configure the network via DHCP or static values I supply, and be ready for apt updates. • Expose HTTP/HTTPS and SSH to the internet. You may rely on Proxmox built-in firewall, iptables/nftables, or an nginx/HAProxy reverse proxy—whichever you judge safest. All inbound rules should b...

I run a technology-focused site and would like a dependable writ...descriptions, and internal linking suggestions) is important so the content performs well once live. Deliverables for each post will be: • A 700–1,000-word article in Google Docs or Word • A short meta title and description that fits current best practices • Sources or citations for any data, quotes, or statistics used Please include a brief note about your experience with tech topics—programming languages, consumer gadgets, AI, cybersecurity, cloud, or any specialty you’re comfortable writing about. A link to two or three relevant samples will help me see if we’re a match. Looking to build a long-term collaboration with someone who can consistently hit deadlines ...

...and CLEAN to remove stray spaces and hidden characters that often cause upload errors. Format Integrity: I will ensure that SKUs and Descriptions remain as text, while Quantities and Prices are strictly maintained in Number/Currency format without losing decimal precision. Attention to Detail: I will proactively flag and fix obvious typos to maintain the professional quality of your database. Consistency: I will strictly adhere to your specific column order and naming conventions. My Approach & Timeline: I highly appreciate your suggestion of starting with a small sample. This ensures that my formatting meets your exact expectations before I process the full batch. Timeline: Once the sample is approved, I can complete the full batch within [Insert Timeli...

...Lightweight Theme] for easy future edits. High-speed optimization (must pass PageSpeed Insights). Page 2: Advanced Contact/Lead Page Implementation of a multi-step or single-page form with conditional logic. Logic example: If a user selects "CMS Migration," show specific fields for "Current Platform." If they select "Custom Development," show "Budget/Timeline" fields. Seamless email delivery and database logging. Technical Requirements: Clean Implementation: I prefer a developer who knows how to use Advanced Custom Fields (ACF) or specialized form builders (like Gravity Forms, WPForms Pro, or Fluent Forms) with custom styling. PHP/JS Skills: Must be able to write custom hooks or scripts if the out-of-the-box plugin logic isn't ...

...decryption tools (no success) **What I Need:** One of the following solutions: 1. Decrypt the file to recover password 2. Step-by-step hardware reset procedure for this specific model 3. Remote guidance to reset password via service mode 4. On-site visit if you're local (Egypt/Cairo area) **Ideal Freelancer:** - Experience with Mitsubishi CNC systems (M80, M70, etc.) - Knowledge of PLC programming and industrial automation - Access to GX Works3 or NC Configurator2 software - Understanding of CNC password encryption methods - Can provide references from similar work **Deliverables:** - Working system password OR - Unlocked system with password disabled OR - Detailed instructions to reset password ourselves **Payment Terms:** - Milestone 1 (50%): Successful method identif...

I run a small events-and-operations team and I’m looking for a reliable virtual assistant who can take full ownership of our data entry backlog. The work is strictly database management: migrating contact lists from spreadsheets, cleaning and de-duplicating existing records, tagging entries with the correct event or client codes, and keeping our online CRM up to date so the rest of the team can plan each event without scrambling for accurate numbers. You’ll log in to our web-based database and, using the import tools and validation rules already in place, enter or update approximately 300–400 records a week. Consistent formatting, zero duplicates, and correctly linked relational fields are essential; I’ll spot-check your first batch to confirm everyth...

...data is sound, I want clear, professional-looking reports and analytics dashboards that management can run with a single click. The new database should follow the same architecture and optimisation principles so it integrates cleanly with our existing codebase. Everything must stay native to Visual FoxPro; however, if a lightweight helper tool (e.g., SQL Server Express or Power BI for the front-end analytics layer) makes sense, I’m open to your recommendation, provided the core remains in VFP. Deliverables • Updated schema for the current VFP database, fully documented • Cleaned and optimised data set with repeatable scripts • A brand-new VFP database built on the revised architecture • A suite of parameter-driven reports and ana...

...policy. Here is where I need you: • Architectural kick-off – I want rock-solid design patterns and best practices from day one, with security woven through every layer and a flexible auth system that can evolve as requirements shift. • Front-end / back-end integration – Help me keep the wiring clean so new modules or UI components can be dropped in without a full rewrite. • Ongoing pair-programming / troubleshooting – When my junior developer hits a snag, I’d like you to step in on an hourly basis, untangle the issue, explain the fix and leave behind actionable notes so we learn as we go. The consults will be remote and ad-hoc, so clear communication and the patience to dive into “in-the-weeds” problems are essential. If y...

I need a well-structured, up-to-date Italian B2C database that will let me run highly targeted marketing campaigns. My immediate focus is on contacts who fall, so please keep non-relevant entries to a minimum. The file should contain at least these fields for every record: • Email address • Phone number (mobile or landline) • Full mailing address (street, city, ZIP/post code) If you also track extras such as age range, purchasing behaviour, or other demographic tags, let me know—those bonus details could tip the scale in your favour. Send a brief overview of: 1. Total number of unique records you can provide. 2. Verification date or method you use to keep the data current. 3. Expected hard-bounce or invalid rate. A clean CSV or Excel workbook is ...

...extensions (TimescaleDB/InfluxDB). Experience with for a performant frontend dashboard. Deliverable: A fully functioning MVP capable of handling 5,000+ daily scans across 20+ global nodes. Milestone Payment Schedule (4-Week MVP) Milestone 1 (20%): Environment & Scanner Core – Successful setup of Infra and PostgreSQL/TimescaleDB and a Puppeteer script that saves one valid scan result to the database. Milestone 2 (30%): API & Background Queue – Completion of POST /v1/scan and job status polling using Redis/BullMQ to handle concurrent scans. Milestone 3 (30%): Dashboard & History Charts – Frontend integration of Gauge charts and historical trend lines pulling from TimescaleDB hypertables. Milestone 4 (20%): Billing & Launch Prep – Integratio...

...full web storefront. Here is how I see the engagement unfolding: • Mobile App (Android) – Compile, configure and publish the customer app using my brand assets. – Activate Firebase integration for push notifications, analytics and crash reporting. • Remaining Components – Delivery-partner app build and release. – Web application deployment on Hostinger, connected to the same database. – Payment-gateway hookup (I’ll provide credentials once we select the best plugin). – Google Maps API connection for address search and live-tracking features. – Basic on-page SEO settings so the web store is crawl-ready. Testing & Handover I will run through checkout, order tracking and push-notifica...

...that, I’d like your suggestions on the most reliable back-end stack, database, and cloud services to keep the site fast, secure, and scalable. Core functionality in scope • Product listing and real-time inventory management • Stripe payment gateway integration (or any better option) • Customer reviews and ratings • Order tracking from checkout through return • Account verification (photo ID) • E-doc signing with DocuSign for rental contracts • Live chat support • Separate, role-based dashboards for Admin and Users • Robust database design for products, customers, rentals, and transactions What I’d like from you 1. A brief technical proposal that explains why your chosen stack (language, framework, ...

Financial & Accounting: Chart of Accounts Journal Entries and Posting AR/AP Cash/Bank Invoices/Receipts VAT / Taxes Closing Reports Trial Balance, General Ledger, AP/AR Aging Procurement: Vendors Purchase Requisition Purchase Order GRN / Receiving Vendor Invoice Returns to Vendor Payment to Vendor link with AP/Bank Inventory / Warehouse: Items / Products + Units + Barcodes Warehouses / Locations / Bins Stock Movements Stock in/out, Transfers Adjustments Batches / Expiry Min/Max + Reorder level Costing method (FIFO/Weighted Avg) Reports: Stock Balance, Expiry Report, Movement report

...approach (Flutter, React Native, Kotlin Multiplatform) or native builds, as long as both stores are covered and the Google Maps SDK is the mapping backbone. Clean architecture, clear separation of concerns, and well-commented code are essential because I’d like you to walk me through the logic afterward. Plan on a brief hand-off session or recorded walkthrough so I understand how the GPS publishing, database updates and push notifications tie together. Deliverables • Full source code for iOS and Android builds, ready for App Store and Play Store submission • Simple backend (Firebase, Supabase or similar) storing routes, stops and live coordinates • Driver tracking toggle with battery-friendly foreground service • Student/Parent view with map, di...

I’m ready to roll my live store back from OpenCart 4 to a clean OpenCart 3.0.4.1 installation while keeping every product image, log file and database record intact. Deadline: March 1st Backup preference Please use the built-in Admin route—Maintenance → Backup/Restore—to grab a full archive of both files and database. I do have an older backup, but I’d like you to create this fresh one first so nothing is missed. Scope of work 1. Create and download the full backup exactly as described above. 2. Wipe the existing OpenCart files and database from the server. 3. Perform a fresh install of OpenCart 3.0.4.1 and set up a new, empty MySQL database. 4. Edit the exported SQL so table prefixes and any other identifiers match the ...

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...Restaurant/Business Portal – will be created through the Super Admin so businesses can track their appearance on the app, their transactions and their member app referrals. 7. Hosting – AWS What I am looking for: A company for a very long-term relationship that can help serve what will be 1000’s of clients over the next 12 months and even more beyond that. Your firm will ideally be able to do more than programming to include SEO, social media management, google ad reviews and other services that help business with advertising and growth. The real money with this relationship is not what you can earn on this app, but what business I can bring you for years to come. IN YOUR REPLY GIVE AN ESTIMATE OF WHAT YOU THINK THIS PROJECT WILL COST, TIMELINE FOR COMPLE...

1. Core Framework: Platform: 100% Native Android (Kotlin or Java). Strictly NO WebView or Hybrid frameworks. Database: Real-time synchronization with a secure web-based Admin Panel. 2. Task & AdMob Integration (Full Security): Flow: User clicks Task -> Trigger AdMob Interstitial/Rewarded Ad -> Redirect to YouTube/TikTok/FB -> Task Verified. Server-Side Callbacks: Use server-side validation for AdMob rewards to prevent ad-skipping hacks. Frequency Capping: Strict limit of 4 ads per device/day to protect AdMob account health. 3. 6-Level Referral & Salary Logic: Architecture: Automated server-side tracking for a 6-level referral hierarchy. Milestones: Auto-trigger "Monthly Salary" status once user reach invite targets (e.g., 200, 500, 1000 invites). Dashboard...

Our landscape construction firm juggles dozens of jobs at any given time, and I need a cloud-based system that tracks each project from the first bid through final hand-off. The core will sit on Firebase so the team can enjoy real-time updates wherever they are on site or in the office. What I need you to build • A rel...and permissions. 3. Role matrix demonstrated with at least three user tiers and a simple way to add more. 4. Concurrent editing tested—changes reflect for every active user within two seconds. 5. Deployment guide plus schema diagram delivered for future developers. If you’ve built Firebase apps with heavy file storage and granular security rules, this will feel familiar. Let’s create a database that finally brings order to our bids, ...

...of the websites have tokens that have to be initiated that keep changing. All of the sites are getting scraped except for one has a problem. You will fix that. This scraper is also inputting the incorrect price into our database and you will need to fix that as well. Heres how the system works: Prices are scraped from several theme park websites. Then they are ran thru a calculation algorithm to determine what our price should be. All the sites are inputting the correct prices except for universal. You will fix that (Currently its putting the scraped price in our database and not the calculated price like it should). All the calculations are there already, for some reason its not being utilized for that particular theme park. That is fix 1. Fix 2 is to automatically ref...

...the entire site immediately went offline—nothing but a blank page. Turning on display_errors shows a trail of syntax errors, so the code clearly isn’t 8.3-ready. What I need right now is a rapid, focused repair. Please track down and correct every incompatible statement, function call, or deprecated construct, then bring the site back up so it loads cleanly with no warnings. SSH, cPanel, and database credentials are ready for you the moment we start, and the site is built with plain PHP (no CMS), so you’ll be working directly on the scripts. Deliverables • Fixed codebase fully compatible with PHP 8.3 • Brief change log noting each file edited and why • Confirmation that renders normally with error reporting enabled and shows zero PHP noti...

...that, I’d like your suggestions on the most reliable back-end stack, database, and cloud services to keep the site fast, secure, and scalable. Core functionality in scope • Product listing and real-time inventory management • Stripe payment gateway integration (or any better option) • Customer reviews and ratings • Order tracking from checkout through return • Account verification (photo ID) • E-doc signing with DocuSign for rental contracts • Live chat support • Separate, role-based dashboards for Admin and Users • Robust database design for products, customers, rentals, and transactions What I’d like from you 1. A brief technical proposal that explains why your chosen stack (language, framework, ...

# MMORPG Game Client Reverse Engineering - Anti-Cheat Bypass ## Project Description We operate a private server for an MMORPG game. The game client is written ...client and replacing them. ## What We Provide - The current game client EXE - Our existing hook DLL project (Visual Studio solution, ready to build) - All old addresses as reference for pattern matching - Server-side packet format documentation for heartbeat integration - Test server access for verification ## Deliverables - Updated and compiled hook DLL (working with current client) - IDA database file (.idb) - Address list with descriptions - Client pseudocode dump ## Required Skills - IDA Pro + Hex-Rays Decompiler - x86 Assembly - C++ and Visual Studio - Windows API hooking (Microsoft Detours) - XignCode3 bypass ...

...and a lightweight ML pipeline—think TensorFlow, PyTorch, or a comparable framework—to run clustering and predictive models. Results must be displayed on a clean dashboard with filters for date range, traffic source, and device type so non-technical stakeholders can explore the findings. Deliverables • Fully responsive website with built-in event tracking • Backend data pipeline and secure database schema • Trained models that classify user segments and predict drop-off points • Interactive analytics dashboard with export capability (CSV/JSON) • Setup documentation and a brief hand-off video walkthrough Acceptance criteria: data collection accuracy above 95 %, dashboard loads under two seconds for 100 k daily events, and model outpu...

...purchase image credits as packages Users can select from 3 different packages essential, standard & extra. in essential package user pays $3 and he will get 3 image credits. in standard package user pays $5 and he will get 8 image credits. in premium package user pays $10 and he will get 20 image credits. so there should be a mechanism to buy packages link stripe as payment processor supabase as database system when image is uploaded and we get successful response from only then deduct the image credit once credits reach 0, users should not be able to upload images until they purchase new credits On front page user will get a field to upload the image, text field to add a name or a lable to the image, and process button. below that you can show the packages and purcha...

...data entry, typing, and basic content writing. I am capable of handling administrative and documentation tasks with accuracy and efficiency. Work Sample 1 – Data Entry Task Task Description: Created and organized a sample database of 150 customer records using MS Excel. Work Done: - Entered names, phone numbers, email IDs, and addresses in proper format - Removed duplicate entries - Corrected spelling errors - Arranged data alphabetically - Maintained 100% accuracy Tools Used: - Microsoft Excel - Microsoft Word Result: Clean, well-organized, and error-free database ready for business use. Work Sample 2 – Content Writing Task Topic: Importance of Time Management for Students Time management plays a crucial role in a student’s academic success. When...

Roles: Full Stack Engineer (Platform Integrations) / DevOps Engineer (Application Reliability) You will design, build, and operate backend services and job workflows that keep external provider data in sync with internal records. The role focuses on secure serverless APIs, third-party integrations, database updates with correctness guarantees, and production-grade observability and operational controls. Responsibilities Build serverless API routes and internal job endpoints using , including robust request handling, validation, and environment-aware security controls. Implement secure job triggering and verification (e.g., signature verification for queued/async job delivery) to protect internal endpoints. Integrate external provider APIs and data sources, including: constructin...

I need a solid, campaign-ready outreach list of manufacturers operating in Mainland China, with a primary emphasis on the Textiles sector but also covering Electronics, Automotive Parts, Heavy Machinery, Logistics, Shipping, and Bunkering. Every record has to point me straight to a real decision-maker—Sales Representative, Export Manager, or General Manager—so generic inboxes (info@, sales@) are out of the question. Quality is non-negotiable: each email must run through ZeroBounce and return at least a 95 % deliverability score. I’m aiming for a minimum of 300 unique companies with zero duplicates. Please draw only on proven B2B research methods and tools you’ve used successfully before; I expect the data to be clean enough to drop straight into an outreach sequ...

I have a nearly finished cryptocurrency payment gateway that lets online merchants accept TEXITcoin (TXC) and PUREmedal (PURE). The core smart-contract logic, checkout flow and database schema are already in place, and the stack is React on the front end with a Node.js back end. What I need now is an experienced full-stack Web3 developer who can tie up the loose ends, harden the code and get us to a production launch. Key gaps to close • Merchant dashboard polish – merchants must be able to generate API keys, configure webhooks, and choose between HD/xpub or static wallet addresses. • Checkout edge cases – customers see a payment address and live status updates; the status must stay accurate even on slow or re-orged blocks. • Reliable notifications ...

...customer-interaction modules at this stage. Here’s what I’m looking for: • Prepare the hosting environment, deploy the Node.js code, and wire it to the production domain. • Configure SSL so everything runs over HTTPS. • Set up environment variables, build steps, and a process manager such as PM2 (or a comparable tool) to keep the service running automatically after restarts. • Connect any database or external services the project already references. • Optimize basic performance and security settings (rate limits, headers, logging). • Deliver a short written guide so I can replicate the deployment or roll back if needed. If you prefer a particular stack—Docker, cPanel, bare-metal Linux, or a cloud platform like AWS, Digit...

Required Skills • 6+ years of professional software development experience • Strong expertise in Java as the backend language • Hands-on frontend development with ReactJS and modern TypeScript • Proficient in SQL with any relational database (e.g., PostgreSQL, MySQL, etc.) • Solid understanding of software engineering best practices and testing • Experience building and maintaining scalable full stack applications • Strong communication and team collaboration skills • Expertise with Python and various python packages Preferred Skills • Advanced SQL with PostgreSQL: joins, subqueries, CTEs, and query optimization • Understanding of ETL and Data ingestion • Experience with core AWS services: EC2/ECS, ELB, S3, CloudFron...

Build a new website that displays listings sourced directly from an existing database on the same server, listings must show summary information only, clicking any listing must redirect users to the original source website for full details, the new website must include its own blog section, the new website must include a user and staff management system, the new website must include standard informational pages, the website must be designed for long‑term scalability, the website must be SEO‑friendly and mobile responsive. Website must connect directly to an existing database on the same server, no API required, no CSV import required, no external sync required, listing data must be pulled directly from the shared database, listing cards must display summary informatio...

I need a (Integromat) expert to finalize a partially completed automation. The flow is triggered by Zoho Mail, unzips an invoice file, parses a UBL 2.1 XML (DIAN Colombia standard), inserts data into a MySQL database, and saves the PDF in Dropbox. The current Make Blue print is attached to this project, and the full detail is in notion. **Current issues to fix (Day 1 work):** 1. **Relational Database Logic:** Ensure the `insertId` from the main invoice table is correctly mapped as a foreign key to the product detail table. 2. **Data Persistence between Router Branches:** Use a Data Store to pass variables (Supplier Name, Invoice Number) from the XML branch to the PDF branch to rename files correctly in dropbox. 3. **Optimization:** Remove inefficient "Repeater/Aggreg...

...Research: Conduct in-depth research to identify programmatic opportunities and back funding requests with solid data. Analyze market trends, needs, and gaps to align our programs with potential funding sources. Lead Identification: Map out potential donors and funding opportunities, including foundations, corporations, government agencies, and individual philanthropists. Develop and maintain a database of prospective donors. Proposal Redaction: Craft compelling and persuasive funding proposals. Ensure that proposals clearly articulate the impact and value of our programs, align with donor priorities, and meet all submission guidelines. Budget Development: Collaborate with program teams to develop detailed budgets for project proposals. Ensure that budgets are realistic, transpare...

Two live, one-hour screen-sharing sessions will kick-start our work with Clay AI. Session #1 needs to dive straight into performing Google Map searches inside Clay and then pushing those enriched results back into our current database. I also want clear guidance on defining triggers and actions, setting up reliable notifications, and keeping the data model tidy through proper database normalization. If extra time is needed after the first two calls, I am happy to book follow-up sessions so I leave feeling fully confident building entire Clay workflows from scratch, tweaking simple custom AI models, and exporting everything cleanly. Any screen-sharing platform—Zoom, Google Meet, Skype, or whichever tool you prefer—is fine as long as we can see each other’...

...and as a native Android app, with one shared back-end and database. Scope • Design – I do not have wireframes, so I will rely on you for a clean, intuitive UI/UX that feels consistent across web and Android. • Core build – Implement user sign-up/login, bill entry and editing, automated reminder scheduling (push / email), and a dashboard that aggregates expenses by category, date, and total. • Tech choice – I’m open to any modern stack you are comfortable with. Feel free to propose React, Angular, Vue, Flutter, Kotlin, or something else, as long as the final result is maintainable and well-documented. • Back-end – Expose secure REST or GraphQL endpoints, handle all CRUD operations, and store data in a lightweight cloud ...

I’m building a master outreach database and need a reliable researcher to source and verify email contacts of manufacturers based in mainland China. The priority sectors are Electronics, Textiles and Automotive parts, but I also want to cover heavy machinery, logistics, shipping and bunkering companies so I can target a broader supply chain. Every address must pass an email-verification service (Hunter, NeverBounce, ZeroBounce—use whatever you prefer as long as the result shows “deliverable”), ensuring the list is ready for immediate campaigns with no hard bounces. Please focus on three job functions only: Sales Representatives, Export Managers and General Managers. I’m not interested in generic “info@” or “sales@” inboxes; nam...

...LEAN) Backtesting and performance optimization Integrate strategies with Interactive Brokers (IBKR) Implement risk management and position sizing logic Work with historical and live market data Deploy and maintain strategies in live trading environment Analyze performance (PnL, Sharpe, drawdown) Requirements Proven experience in algorithmic trading / quant development Strong Python programming Experience with QuantConnect or LEAN Engine Experience with IBKR API integration Understanding of US equities / ETFs markets Experience with backtesting frameworks Knowledge of trading risk management Nice to have Intraday or HFT strategies pandas / numpy / scipy Walk-forward optimization Experience in prop trading / hedge fund C# (LEAN) Project details Market: US stoc...

...Tailwind / Material UI) API-ready architecture (future mobile app) 8. Hosting & Domain We already own: Company domain Hosting (can be shared after discussion) Developer should assist with: Deployment Basic server configuration SSL setup 9. Deliverables Complete source code Database schema Deployment guide Admin user manual Basic documentation Post-launch support (1–2 weeks) 10. Preferred Tech Stack (Open to Suggestions) Backend: Laravel / Django / Node.js Frontend: React / Vue / Blade Database: MySQL / PostgreSQL OCR (optional): Google Vision / AWS Textract Notifications: SMTP Email + WhatsApp/SMS API 11. Timeline & Budget MVP: 3–5 weeks Budget: Open (please propose based on scope) 12. Proposal Requirements Please include: Si...

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...automatically extracts musical information. For every track the service must detect • BPM and time signature • Overall tempo as well as integrated loudness (LUFS or a comparable metric) • Phrase boundaries and sections of complete silence Once a file is processed the results have to be written to a single CSV file—one row per track, neatly formatted with column headers for each metric. No database or JSON output is required. A minimal REST or command-line interface that lets me submit a path to an MP3 and returns the processing status is enough; the core value is the signal-processing code itself. Please rely on well-known Python libraries such as librosa, Essentia, pydub or similar so the solution remains transparent and easy to maintain. All thir...