Full Stack Developer

Full Stack / Backend Developer (Backend-Focused)Location: Newark, NJ areaEmployment Type: Contract-to-Hire (W2)Requirements:Experience with Python, Java, and JavaScript; working in distributed systems, object-oriented programming, design patterns, and design methodologyExperience with Java services using Spring CLI, Maven, Microservices, multi-threading, concurrency, and parallel processingFrameworks: Spring Boot, Node.js (Full/MEAN/MERN stack)Data Store: Non-relational and relational data structures; MongoDB; BPM toolsData Streaming: SQS, KinesisAbility to work effectively in cross-functional teams and with business partners to develop high-quality applicationsHands-on experience with AWS cloud services and cloud-native application developmentRecent experience building enterprise GenAI solutions, including AI agents, chatbots, or RAG applicationsExperience with AWS Bedrock or other enterprise LLM platforms5+ years of relevant experience with Java-related technologies on Unix or Linux5+ years of relevant experience with backend technologies including JBoss, Spring Boot, REST3+ years of relevant experience with client-side technologies including React, JavaScript, JSON, RESTKnowledge/Understanding of:Application Programming Interfaces (APIs): consumption and development; implementing service-oriented architecture (SOA) patterns; web service technologies such as APIs, REST, JSON, JDBCExperience with AWS AgentCoreUnit, interface, and end-user testing concepts and tooling (functional and non-functional)Automated testing, agile development methodologies, and Test-Driven Development (TDD)Accessibility awarenessSoftware 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, JenkinsSoftware Development Life Cycle (SDLC): monitoring and logging techniquesAWS core services such as CloudWatch and CodeDeploy