Sign up to access all features of our service.
  • Job search
  • Favorites
  • Create a CV
    New
  • Salaries
  • Subscriptions

Sr. Full Stack Software Engineer

HAN Staffing

Job ID: 28596603Reference Number: 26-00557Title: Sr. Full Stack Software EngineerLocation: Iselin, NJ, 08830Posted Date: 2026-06-11Contact: Deepak KumarContact Email: View email address on click.appcast.io Phone: (551) 795-0621Company: HAN StaffingJob Title: Sr. Full Stack Software EngineerLocation : Jersey City, NJ ( Local)Exp: 12+ YrsRate: $75/hrNo of Position: 118316-3 and 118316-4RTTO – 5 Days OnsiteJob responsibilitiesLeads end-to-end delivery of full stack solutions using React, Java Spring Boot, GraphQL/REST, and AWS-managed services, from design through production support.Drives architecture and design reviews, defining service boundaries, API contracts, data models, and integration patterns.Develops secure, high-quality, production-grade code; conducts thorough code reviews; sets and enforces engineering standards.Builds and maintains highly available and scalable services with strong operational excellence: reliability, performance, cost awareness, and maintainability.Implements and governsauthentication/authorization using OIDC/OAuth2, token validation, scopes/claims, and service-to-service security patterns.Establishes robust observabilitypractices (structured logging, metrics, tracing), incident response readiness (runbooks).Evaluates vendor and internal solutions (including architectural fit, security posture, scalability, and operability) and guides adoption decisions.Partners with Product and UX to deliver outcomes; translates requirements into technical plans and milestones; proactively manages trade-offs.Required qualifications, capabilities, and skillsMinimum 8 years applied full stack engineering experience delivering and operating production systems; experience as a senior/lead capacity (technical leadership, design ownership).React expertise: modern React patterns, TypeScript, state management, component design systems, performance optimization, and responsive UI development.Java Spring Boot expertise: building APIs, dependency injection, validation, error handling, and performance tuning.GraphQL proficiency: schema design, resolvers, federation/composition patterns (where applicable), query performance (N+1 mitigation, caching), and API governance/versioning strategy.REST proficiency: OpenAPI-style contract design, pagination/filtering, idempotency, backward compatibility, and consumer-driven API evolution.OIDC/OAuth2: hands-on implementation with JWTs, refresh/access token flows, scopes/claims, secure session patterns, and least-privilege access control.AWS experience (hands-on): designing, deploying, and operating cloud-native applications; strong understanding of IAM, networking basics, and operational tooling (logs/metrics/alarms).Data layer expertise:AWS Aurora PostgreSQL: advanced SQL, indexing, query optimization, migrations, and transactional design.AWS Neptune: gremlin, graph modeling, query patterns, and performance considerations for graph workloads.Event-driven systems:AWS Kafka (MSK): topics/partitions, consumer groups, schema evolution, ordering/at-least-once semantics, idempotency, retries/DLQs, and operational monitoring.CI/CD and quality:Strong Git practices, automated testing (unit/integration/contract/e2e), code quality gates, and release confidence practices (feature flags, progressive rollout where applicable).AI-assisted engineering (MUST):Demonstrated proficiency using Claude Code and/or GitHub Copilot to accelerate development, debugging, refactoring, test generation, and documentation—while ensuring correctness, security, and maintainability (e.g., validating outputs, avoiding sensitive data leakage, and adhering to team standards).Preferred qualifications, capabilities, and skillsInfrastructure as Code (Terraform/CloudFormation/CDK) and deployment automation patterns.Containerization and orchestration experience (Docker, ECS/EKS) depending on platform direction.Advanced security practices: threat modeling, OWASP Top 10 mitigation, secrets management, dependency hygiene.Experience defining platform standards: API governance, event contracts, service templates, and reliability SLOs/SLIs.Prior experience integrating with Oracle HCM.Screening Guidance (please follow strictly):Mandatory (strong in most):React + Spring BootAWS (hands-on)Kafka / event-driven systemsCritical Skills:GraphQL – required for strong profilesAmazon Neptune – important for data layer (expected in most strong candidates)Important:Candidates without GraphQL/Neptune should be considered only if very strong overallAvoid backend-only, Angular-only, or weak AWS profilesPlease prioritize quality over volume and share only strong, relevant profil

Vacancy posted 4 days ago
Similar jobs that could be interesting for youBased on the Sr. Full Stack Software Engineer in Iselin, NJ vacancy
  •  ...FOR W2 Candidates. Position: Senior Full Stack Java Developer Location: Woodbridge...  ...issues. Participate in all phases of the Software Development Life Cycle (SDLC), including...  ...business analysts, QA teams, and DevOps engineers to deliver high-quality solutions.... 
    Senior
    Full time
    Contract work
    Temporary work

    Pinnacle Group

    Iselin, NJ
    2 days ago
  • $105k - $125k

    Object Data , is seeking Senior Full Stack .NET Developers to support our IT development...  ...Responsibilities: - Design and develop high-quality software solutions using .NET Core / .NET 6+,...  .... or M.Sc. in Computer Science and/or Engineering from a reputable university or... 
    Senior
    Full time
    Visa sponsorship

    Object Data

    Iselin, NJ
    4 days ago
  • $130k - $155k

    Description About Us At FreshDirect, we are reinventing the grocery experience. Since day one, our mission has been simple: bring the best, freshest food directly from the farm to people's homes - faster, fresher, and smarter than anyone else. We are not just a food ...
    Senior

    FreshDirect

    Woodbridge, NJ
    3 days ago
  • Lead/Sr Java Developer Location: Charlotte, NC/Dallas, TX/Iseline, NJ/Pennington, NJ...  ...12+ Months This role requires a Senior Software Engineer with deep hands-on expertise in Java, J2...  ...boilerplate tasks, and improve code quality Own full lifecycle development: design, coding,... 
    Senior
    3 days per week

    Redolent

    Iselin, NJ
    4 days ago
  • Sr. Java Developer With GWT Title: Sr. Java developer with GWT Location: Edison, NJ, United States Responsibilities: To design and...  .... Manage the day-to-day activities working with a small team of software developers. Interface with project stakeholders to ensure that the... 
    Senior

    HSS SOFT

    Edison, NJ
    4 days ago
  •  ...Full Stack Engineer - Frontend (JavaScript)Company: EZOPSLocation: New Brunswick, NJJob Type: Full TimeJob Description: We are looking for an expert resource on JavaScript and CSS to round out our dev team in NJ building a new Fintech platform to leverage A.I. Machine... 
    Local area
    Flexible hours
    Day shift

    Cardinal Integrated

    New Brunswick, NJ
    2 days ago
  •  ...Position Summary: We are seeking an experienced and passionate Senior Full Stack Engineer to design, build, and support high-quality solutions for our member and agent portals, driving our growing business strategies. This hands-on role requires expertise in modern... 
    Senior
    Temporary work

    Delan Associates, Inc

    Piscataway, NJ
    a month ago
  •  ...methodology, attending daily stand-ups, sprint planning, and retrospective meetings. Minimum 2-3 years of software engineering experience Have built mobile apps (and/or web apps) full-stack before Enthusiastic about photo sharing and/or AI and/or social media... 
    Full time

    Cheez

    Edison, NJ
    3 days ago
  • Software Developer Position Location: Iselin, NJ Responsibilities: Design, build, and test software solutions across multiple technologies...  ...SDLC standards and architectural guidelines, including full stack development spanning backend Java/Spring services, RESTful APIs... 
    Senior

    Axelon

    Iselin, NJ
    4 days ago
  • Job ID: 18679929Reference Number: 23-00103Title: Java Full Stack Application EngineerLocation: Iselin, NJ, 08830Posted Date: 2023-01-12...  ...Qualifications The candidate must be a full stack java application engineer The candidate must have an extensive experience in building... 
    For contractors

    HAN Staffing

    Iselin, NJ
    2 days ago
  • $107.36k - $161k

     ...locations Role is not relocation eligible. Job Title: Senior Software Engineer Responsibilities As a software engineer, you will...  ...experience Bash and Linux experience Familiarity with full-stack development Experience with CICD pipeline (CircleCI,... 
    Senior
    Work at office
    Local area
    Relocation
    Flexible hours

    Citizens Bank

    Iselin, NJ
    2 days ago
  • Apply for job Job Title : Senior Java full stack Developer Location : Berkeley Heights, NJ/Alpharetta, GA Duration: 6+ Months Required Skills Minimum 10 years' experience in Java, GIT, JIRA, Maven, Confluence, Spring framework (Core, MVC, AOP, Java NIO). Minimum 5... 
    Senior

    Lorhan

    Berkeley Heights, NJ
    4 days ago
  • Frontend Developer Develop UI components - Build reusable, responsive, and dynamic components using Angular framework. Implement client-side logic - Handle data binding, routing, and state management. Integrate APIs - Consume RESTful APIs provided by the backend (Spring...

    Omni Inclusive

    Edison, NJ
    4 days ago
  • Senior Full Stack .NET Developer Location: Warren, NJ 07059 Duration: 12 Months Experience: 8-10+ Years Interview: Face-to-Face Required...  ...with Microsoft Copilot, GitHub Copilot, and Claude for software development is required. Must Have Skills C#, ASP.NET Core, .... 
    Senior

    eTeam

    Warren, NJ
    4 days ago
  • Job ID: 27860499Reference Number: 26-00294Title: Full Stack Engineer with deep PythonLocation: Iselin, NJ, 08830Posted Date: 2026-03-27Contact: Deepak KumarContact Email: ****@*****.*** Phone: (***) ***-****Company: HAN StaffingSenior Full Stack Engineer with... 

    HAN Staffing

    Iselin, NJ
    2 days ago
  • $63 per hour

    Full Stack Java Developer Number of openings: 3 Location: Iselin, NJ or Charlotte, NC Onsite: 3 days a week Rate for Iselin, New...  ...managing applications on Kubernetes. Strong understanding of software engineering best practices, including testing, code quality, and... 
    Permanent employment
    Contract work
    Work at office
    Local area
    3 days per week

    Anveta

    Iselin, NJ
    4 days ago
  • Full Stack Web Developer Design, develop, and maintain full stack web applications covering frontend UI, backend services, and databases. Build responsive, user-friendly frontend interfaces aligned with usability and accessibility standards. Develop and maintain backend... 

    E-Solutions

    Rahway, NJ
    4 days ago
  •  ...Job PostingRequired Skills - 3-5 years Appway software development 2-3 Years project managementJob Duties - We are looking for a Team Lead/Architect with Appway specific experience. The focus for the role consists of new development and enhancing new capabilities in Appway... 
    Senior

    Samprasoft

    Woodbridge, NJ
    2 days ago
  •  ...Collaborate with cross-functional teams to deliver end-to-end solutions. Write clean, testable code and uphold best practices in software engineering. Qualifications: 10 plus years of backend development experience, with strong expertise in Java (v11/17). Proven background... 
    Senior

    3B Staffing LLC

    Iselin, NJ
    4 days ago
  • $84.06 - $92.06 per hour

    Genesis10 is currently seeking a Senior Data Engineer and Analyst - Hybrid for a contract position with a Global Financial Institution located...  ..., and practical GenAI use. Responsibilities: Own full-cycle data problem solving: profile large datasets, design... 
    Senior
    Hourly pay
    Permanent employment
    Contract work

    Genesis10

    Iselin, NJ
    3 days ago
  • $114.75k - $153k

     ...Everest Group and IDC. Discover more at Engineer with 5+ years' experience for hands-on development and support of Medidata's software applications. The engineer is one who works...  ...quality in our products and services in a full solutions-oriented SaaS environment.Responsibilities... 
    Senior
    Local area
    Remote work
    Flexible hours

    Medidata Solutions

    Iselin, NJ
    2 days ago
  • Java Fill Stack Developer Location - Iselin, NJ - 3 days onsite Skill Area - Rating (1-5) Java 17+ (Core Java, Collections, Multithreading) Spring Boot & Spring Framework Spring Security Microservices Architecture REST/SOAP APIs Angular 16 (Components, Services, RxJS, Route... 

    Yochana

    Iselin, NJ
    4 days ago
  •  ...and SOAP APIs, write tests under TDD, and collaborate in Agile/Scrum sprints. The role requires strong communication and teamwork, with a focus on delivering scalable, high-quality software in a fast-paced environment. #J-18808-Ljbffr MACHINE LEARNING TECHNOLOGIES LLC

    MACHINE LEARNING TECHNOLOGIES LLC

    Union, NJ
    5 days ago
  •  ...Sr. Salesforce Developer Visa status: U.S. Citizens and those authorized to work in the U.S. are encouraged to apply. Tax Terms: W2, 1099 Corp-Corp or 3rd Parties: Yes Job Description: 1. Customization & coding • Detailed hands-on experience with Triggers and... 
    Senior
    Remote work

    Keylent Inc

    Summit, NJ
    5 days ago
  • Job Posting Job Description 4-7 years in backend and fullstack engineering with proficiency in Java development Vertx framework is a plus...  ...UIUX design principles. Experience with SQL and NoSQL databases eg DynamoDB Elasticsearch Postgres Aurora. Software Technology Inc
    Senior

    Software Technology Inc

    Edison, NJ
    4 days ago
  • Java/Angular Full Stack Developer Location: Irving, TX / Tampa, FL / Edison, NJ (Onsite) Fulltime Must Have Technical/Functional Skills • Design: Create the high-level design and structure of the application user interface • Technical leadership: Guide development teams... 
    Full time

    AceStack LLC

    Edison, NJ
    4 days ago
  • Job ID: 22030767Reference Number: 24-00331Title: Sr. Software EngineerLocation: Iselin, NJ, 08830Posted Date: 2024-04-22Company: HAN StaffingSr. Software Engineer
    Senior

    HAN Staffing

    Iselin, NJ
    2 days ago
  •  ..., develop, and implement top-notch user interfaces and custom software using AngularJS, Angular, and related JavaScript frameworksWriting...  ...: Requires a minimum of a bachelor's degree in computer science, electrical engineering, computer engineering or a related discipline... 
    Senior

    Staffing the Universe

    Iselin, NJ
    2 days ago
  • Job Description 4-7 years in backend and fullstack engineering with proficiency in Java development Vertx framework is a plus Experience...  ...and methodologies for both frontend and backend Experience with software engineering best practices eg unit testing design patterns... 
    Senior

    Kaav Inc.

    Edison, NJ
    4 days ago
  • Merck & Co., Rahway, NJ, is seeking a CSRM Physician to lead pharmacovigilance, risk management, and safety surveillance for assigned products, coordinating with RMST and cross-functional teams. The role emphasizes safety data evaluation across trials, literature, and post...
    Senior

    Merck

    Rahway, NJ
    5 days ago

Do you want to receive more vacancies?

Subscribe and receive similar vacancies to Sr. Full Stack Software Engineer. Be the first to apply!