Full Stack Developer

Full Stack / Backend Developer (Backend-Focused)

Location: Newark, NJ area

Employment Type: Contract-to-Hire (W2)

Requirements:

Experience with Python, Java, and JavaScript; working in distributed systems, object-oriented programming, design patterns, and design methodology

Experience with Java services using Spring CLI, Maven, Microservices, multi-threading, concurrency, and parallel processing

Frameworks: Spring Boot, Node.js (Full/MEAN/MERN stack)

Data Store: Non-relational and relational data structures; MongoDB; BPM tools

Data Streaming: SQS, Kinesis

Ability to work effectively in cross-functional teams and with business partners to develop high-quality applications

Hands-on experience with AWS cloud services and cloud-native application development

Recent experience building enterprise GenAI solutions, including AI agents, chatbots, or RAG applications

Experience with AWS Bedrock or other enterprise LLM platforms

5+ years of relevant experience with Java-related technologies on Unix or Linux

5+ years of relevant experience with backend technologies including JBoss, Spring Boot, REST

3+ years of relevant experience with client-side technologies including React, JavaScript, JSON, REST

Knowledge/Understanding of:

Application Programming Interfaces (APIs): consumption and development; implementing service-oriented architecture (SOA) patterns; web service technologies such as APIs, REST, JSON, JDBC

Experience with AWS AgentCore

Unit, interface, and end-user testing concepts and tooling (functional and non-functional)

Automated testing, agile development methodologies, and Test-Driven Development (TDD)

Accessibility awareness

Software security skills including secure coding, web application security, and DevSecOps; solid grasp of security concepts (authentication, authorization, encryption, digital signature, JWT, SSL, web service proxies, firewall, SAML 2.0, OpenID Connect, OAuth 2.0)

DevOps tools and practices: branching techniques and usage of GitHub, Bitbucket, or Subversion; DevOps, Jenkins

Software Development Life Cycle (SDLC): monitoring and logging techniques

AWS core services such as CloudWatch and CodeDeploy