Senior Full Stack Developer (Java/React)

Job Description:

Our client is seeking a Senior Full Stack Developer (Java/React) to join their team. The Senior Full Stack Developer architects, designs, and builds features and capabilities within the Payments domain using modern tools, technologies, frameworks, and systems. They apply a systematic application of scientific and technological knowledge, methods, and experience to the design, implementation, testing, and documentation of software. They own and manage running their application in production and ultimately become accountable for the success of their digital products through achieving KPIs. 

Key Responsibilities:

• Participate in inceptions and iteration planning meetings, infusing backlogs with technical input working in close partnership with the product manager. 
• Partners in collaboration and strategy alignment across product portfolios (cross-product) in partnership with product managers, other peers, and key stakeholders. 
• Serves as an expert on one or more business domain and a distinguished advocate of multiple technology stacks and shares that knowledge across organizations. 
• Leads and participates in daily site, cross-site, and product team standups. 
• Leads and participates in retrospectives; demonstrating and encouraging each participant to provide feedback with empathy. 
• Provides support for software products in user environments. 
• Coaches the team and leads daily practices of using paired programming and test-driven development in writing software and building products. 
• Establishes continuous integration, continuous delivery, and continuous deployment pipelines and practices. 

Technical Skills:

• Front-End Development - HTML5, CSS3, JavaScript (ES6+), React 
• Back-End Development - Java, C#, Node.js (JavaScript/TypeScript), Python 
• API Development - RESTful APIs 
• Server-Side Frameworks - Spring Boot (Java) 
• Databases & Data Management - SQL , PostgreSQL, MongoDB, Key-value stores (Redis) 
• API & Integration Skills:
• Designing scalable APIs 
• API versioning 
• Authentication (OAuth2, JWT) 
• Rate limiting & throttling 
• Third-party integrations 
• Webhooks & event-driven integrations 
• Architectural Patterns
• Microservices 
• Event-driven architecture (Kafka, Kafka Streams) 
• CI/CD - GitHub Actions, Jenkins 
• Testing & Quality - Unit testing (Junit,Static analysis (SonarQube) 
• Observability & Monitoring 
• Logging (structured logs) 
• Tracing (OpenTelemetry 
• Monitoring tools (DataDog 
• Version Control & Collaboration
• Git (branching strategies, PRs) 
• Code reviews 
• Skills
• Problem-solving & debugging 
• Communication (technical + business) 

Salary/Rate: $70-$90/HR (depends on experience level). This is a contract position with candidates expected to work 40 hours/ week.