Senior Java Software Engineer - Payments

Closed Posted 5 years ago Paid on delivery
Closed

The Role:

In this role, we're looking for an experienced backend Java software engineer to help build, certify and operate complex payment systems. Create, design, code, debug, maintain, test, implement and validate applications and collaborate and communicate with appropriate parties. Analyze existing applications or formulate logic for new applications, devise logic procedures, prepare flowcharting, perform coding and debug programs. Maintain and utilize application and programming documents in the development of code. Recommend changes in development, maintenance and system standards. Create appropriate deliverables and develop application implementation plans throughout the life cycle.

Responsibilities:

• Looking for a strong engineer highly available and highly resilient payment gateway

• Design and implement payment gateway integrations that will be processing thousands of transactions a second

• Design and implement RESTful APIs for our payment devices

• Taking ownership of the features/components you work on - from development through deployment and verification, to setting up production monitoring.

• Must be able to write highly reliable code.

• Performing production support services as part of a regular on call rotation

• Future proof our payment services through scalability and re-design of key components as necessary such as migration from SQL to NoSQL.

• Refactor code to be more maintainable and testable.

• Test driven development and unit testing.

• Collaborates with business and technology teams to develop basic to moderately complex code for internal and external client software solutions. Designs, creates, and delivers routine to moderately complex program specifications for code development and support on multiple projects/issues with an advanced understanding of the application and/or area as it relates to assigned projects and how the functional area interacts with other functional areas.

• Performs corrective measures for moderately complex code deficiencies and escalates alternative proposals.

• Analyzes, modifies, and develops moderately complex code/unit testing in order to develop concise application documentation. Performs testing and validation requirements for basic to moderately complex code changes. Applies a full understanding of procedures, methodology and application standards to include Payment Card Industry (PCI) security compliance.

• Provides support to leadership for the design, development and enforcement of business/infrastructure application standards to include associated controls, procedures and monitoring to ensure compliance and accuracy of data.

• Conducts and provides basic billable hours and resource estimates on initiatives, projects and issues.

• Assists with on-the-job training and provides guidance to other developers.

• Provides assistance and support to high profile clients occasionally and serves as subject matter expert for the platform.

Requirements:

• Strong coding skills; Java is our language of choice

• Familiarity with MySQL and database design.

• Experience with API design

• Superior problem-solving skills and debugging capabilities

• Comfort with self-managing multiple high priority projects and working with complex, distributed systems

• Ability to work under pressure to conform to external standards and meet strict deadlines

• Strong communication skills and attention to detail

• Bachelor's degree, or above, in computer science or other engineering discipline, or equivalent work experience

• JAVA Specifics - Java,XML/XSLT, Struts, Spring,JSP, J2EE, Eclipse IDE, Spring, Ibatis, Web Services, EJB Security, Transactions, ANT, AXIS, Design Patterns

Nice to have:

• Experience with Android application development.

• Embedded/MCU/ARM Cortex development, RTOS, C language experience.

Previous experience in payments industry, specifically working with EMVco or exposure to PCI/PTS standards would be very helpful but is not required

Java Java Spring JSP Web Security Web Services

Project ID: #18333510

About the project

42 proposals Remote project Active 5 years ago

42 freelancers are bidding on average $24/hour for this job

trustus

Hello, We have a team of Skilled Java-J2EE professionals with experience up to 8 years. ===== Our Expertise in Java / J2EE : * Desktop Applications : Swing, Eclipse Rich Client Platform, AWT, SWT, RMI * Framework More

$15 USD / hour
(247 Reviews)
8.1
juniadsarfraz

4+ years of professional experience as Java Developer. Worked on Java, Java EE, Hibernate, EJBs, Jsp, Spring Data, JPA, Spring Boot, REST apis, Angular and MySql. Contact me. Thanks

$38 USD / hour
(127 Reviews)
7.3
gvictorvw

Hello , I'm software developer with more then 10 years of experience. The most of the projects where I was involved, was enterprise java applications. Feel free contact me to ask any additional questions and i'm open More

$30 USD / hour
(16 Reviews)
6.5
p4logics

Hello Sir, We are expert in desktop and web app development using java,oops,javafx,swing and awt AND J2EE, Servlet,JSP and all advanced framework like Struts, Spring MVC, Spring boot, and Spring Security, Rest web-s More

$15 USD / hour
(51 Reviews)
6.4
indiasofttel

Hi Sir, I have more than 9 years of experience in Software development and Enterprise System Integration on Java platform. Good experience in development of Back-End system with NOSQL DB. I worked heavily on REST Web More

$27 USD / hour
(92 Reviews)
6.4
DarinX

Hello, I represent DarinX - a full-stack software development company, which has been working since 2014. I was looking for a chance to apply to the project development. It would be really great if you could share More

$22 USD / hour
(7 Reviews)
5.8
unboltsoft

A young Ukrainian software development company that employs several passionate engineers. Our main direction is the engineering, development and implementation of custom software with a deep scientific focus that requi More

$33 USD / hour
(1 Review)
5.2
deytps86

Hello I am working in Java/J2EE technologies for 17+ years. I worked in Spring Framework/Boot, SpringREST using MediaType XML/JSON and URL Encoded and SpringData/Repository using MySQL, MongoDB, PostGre, Cassandra, O More

$30 USD / hour
(34 Reviews)
5.2
dannyyamith

I have read all your requirements, I am a developer with 10 years of experience in business software development with java, experience in architecture, and process design, there are some aspects that I would have to st More

$18 USD / hour
(3 Reviews)
5.1
soutSol

Hello, I am Java devOps working in the industry for more than 5 years now. I have worked on many complex projects including Lawful interception of VoIP calls. Below are the technologies I already have worked on. Ping More

$22 USD / hour
(9 Reviews)
4.1
pmishra1991

If you are looking for an oracle certified Java developer with 6 years of experience who will go extra mile to get things done then I will be a perfect match for the job. I am working as a Full stack developer at Boein More

$16 USD / hour
(9 Reviews)
3.0
SlamHan

Hi,i would like to help with this task. for me,my job is integrate 3 rd party payments like skrill ... which match your requirements and i‘m working with docker and jenkins as well which improve micorservices

$38 USD / hour
(1 Review)
3.0
leoleandrocin

I have a lot of experience working with Java language (Ejb, CDI, RESTful, Hibernate, JPA, JSF, JSP, etc.). I am communicative and organized. Have experience working remotely. I have already worked with payment systems More

$22 USD / hour
(1 Review)
0.9
Ksofttech

Dear Client, Greetings! I have gone through your requirements and understood that you are looking for a senior Java developer to work on a complex Payments system. We, Calibsoft Technologies have very strong More

$20 USD / hour
(0 Reviews)
0.0
snigdhash9

Hello Sir, We are group of freelancer working together. We work on all technologies. We have worked with two of the fortune 500 companies. I have few questions for you. Please advice me on the same. 1) Can you ple More

$15 USD / hour
(0 Reviews)
0.0
techevon3

Dear Prospect Hiring Manager. Thank you for giving me a chance to bid on your project. i am a serious bidder here and i have already worked on a similar project before and can deliver as u have mentioned I am a Fu More

$27 USD / hour
(0 Reviews)
0.0
rahul619302

22 usd per hours with determination,dedication, quality as per client requirement as I am fully professional to do this job and it would be good to deal work with professional like me

$25 USD / hour
(0 Reviews)
0.0
srknszr

I'd like to help you in my fields of expertise. I'll aim to work in a planned way from the beginning to the end of the project.

$15 USD / hour
(0 Reviews)
0.0
ToanNH0401

Dear, I'm a full stack Java developer more than 8 years of experienced. I work on both back end and front end, (back end if better) I worked at almost product companies then it required highest skills and carefully in More

$16 USD / hour
(0 Reviews)
0.0
siddiquialimsoft

Hi, I have gone through your requirement and understand. For your information I would like to inform you I have a team of senior developer (Website/Software and Mobile app) who can deliver your project under commit More

$22 USD / hour
(0 Reviews)
0.0