Senior Full Stack Software Engineer (Java / React)

Position Details

• Type: Contract to Hire
• Industry: Leading Financial Firm
• Location: Hybrid in Newark, NJ
• Pay Rate: $65 - $70 per hour on W2
• No C2C

What You Will Do

• Build applications using modern design patterns, architectural principles, and current industry coding standards
• Develop high-quality, well-documented, and efficient code
• Collaborate with product owners to define feature stories and with tech leads on technical design
• Write unit tests, integration tests, and functional automation
• Research and resolve issues identified by QA or product support
• Coach team members and bring input on relevant and emerging technologies
• Solve complex problems that require evaluating intangible variables
• Work with Python, Java, JavaScript, React, and Spring Boot

Required Qualifications

• Bachelor's degree in Computer Science, Engineering, or related experience
• 6+ years of hands-on experience building enterprise-grade applications with modern Java and JavaScript ecosystems
• Strong UI expertise building modern applications with React and JavaScript
• Financial or Insurance industry experience
• Experience with agentic frameworks and AI-driven development tools (Claude Code, GitHub Copilot, etc.)
• Experience with Agile methodologies and Test-Driven Development (TDD)
• Excellent problem-solving, communication, and collaboration skills

Technical Skills (Advanced Experience in Several)

• Languages: Java, Python, JavaScript, TypeScript; OOP, design patterns, distributed systems
• Java Services: Spring, Maven, Microservices, multi-threading, concurrency, parallel processing
• Frameworks: React, Spring Boot, Flask, Django, Node.js
• Data Stores: PL/SQL, DB2, Oracle, Postgres, Redshift, NoSQL
• Data Streaming: SQS, Kinesis, AWS MSK, EventBridge
• APIs: REST, SOAP, JSON, XML, JDBC, SOA patterns
• API Management: Kong, Apigee
• Security: Secure coding, DevSecOps, JWT, SSL, SAML 2.0, OpenID Connect, OAuth 2.0
• DevOps: GitHub, Bitbucket, Subversion, Jenkins
• AWS: Core services across compute, storage, database, IAM, and analytics
• Testing: Unit, interface, end-user, and automated testing
• Accessibility awareness, monitoring, and logging

Preferred Qualifications

• Domain Driven Design (DDD)
• AWS cloud-native solution development
• Architecture patterns, design, and critical thinking