Sr. Full Stack Software Engineer

Job Title: Sr. Full Stack Software Engineer

Location: Jersey City, NJ (Local candidates only — 5 days onsite)

Job Type: Contract

Experience: 12+ years

Job Overview

Key Responsibilities:

• Drive architecture reviews, define service boundaries, API contracts, and data models
• Develop secure, production-grade code and conduct thorough code reviews
• Build and maintain highly available, scalable services with strong operational excellence
• Implement and govern authentication/authorization using OIDC/OAuth2, JWTs, and service-to-service security patterns
• Establish observability practices (structured logging, metrics, tracing) and incident response runbooks
• Evaluate vendor and internal solutions for architectural fit, security, scalability, and operability
• Proactively manage trade-offs and translate requirements into technical plans and milestones

Required Skills: 

• React: Modern patterns, TypeScript, state management, component design systems, performance optimization, responsive UI
• Java Spring Boot: API development, dependency injection, validation, error handling, performance tuning
• GraphQL: Schema design, resolvers, federation/composition, N+X mitigation, caching, API governance
• REST: OpenAPI contract design, pagination/filtering, idempotency, backward compatibility
• OIDC/OAuth2: JWTs, token flows, scopes/claims, secure session patterns, least-privilege access
• AWS (hands-on): Cloud-native application design, IAM, networking, operational tooling
• AWS Aurora PostgreSQL: Advanced SQL, indexing, query optimization, migrations, transactional design
• AWS Neptune: Gremlin, graph modeling, query patterns, performance for graph workloads
• AWS Kafka (MSK): Topics/partitions, consumer groups, schema evolution, idempotency, DLQs, monitoring
• CI/CD: Git, automated testing (unit/integration/contract/e2e), feature flags, progressive rollout
• AI-assisted Engineering (MUST): Demonstrated proficiency with Claude Code and/or GitHub Copilot for development, debugging, refactoring, and test generation

Preferred Skills: 

• Infrastructure as Code: Terraform, CloudFormation, CDK
• Containerization and orchestration: Docker, ECS, EKS
• Advanced security: Threat modeling, OWASP Top 10, secrets management, dependency hygiene
• Platform standards: API governance, event contracts, service templates, SLOs/SLIs
• Oracle HCM integration experience

Location & Work Model:

Jersey City, NJ — Local candidates only. 5 days per week onsite. In-person client interview required.