Full Stack Developer - Advanced

Java Full Stack - (Hands-on IC, 7 plus years) Spring React AWS Kafka Backend (Java/Spring Boot) expert: Java: strong OOP functional style, concurrency, collections, memory/perf awareness; can read thread dumps/heap dumps and profile hotspots.

Kafka: Experience designing, building, and operating Kafka-based event streaming platforms—topics/partitions, producers/consumers, consumer groups, schema/serialization (Avro), Kafka Connect/Streams, security (ACLs/TLS), monitoring and tuning Spring Boot: controllers/validation, exception handling, interceptors/filters, content negotiation, file upload/streaming, async request handling where needed.

Spring Data/JPA: entity modeling, transactions, isolation levels, pagination, query tuning; handles N1/fetch strategy issues; sensible use of projections vs entities.

Spring Security: OAuth2/OIDC integration patterns, method-level security, custom auth filters, CORS/CSRF, secure session/token handling.

API design: OpenAPI-first mindset, versioning strategy, idempotency, consistent error schema, backward compatibility.

Integration: consuming/producing APIs, resilient client patterns (timeouts, retries, circuit breaker), request signing if applicable.

Build/deps: Photon/Maven/Gradle, BOMs, dependency hygiene, vulnerability remediation workflow.

Frontend (React) strong: React TypeScript: component design, hooks, state management, form handling, routing.

UI quality: accessibility basics, performance, error boundaries, loading states.

API integration: robust data fetching/caching, pagination/infinite scroll, optimistic updates, consistent client-side error handling.

Testing: React Testing Library; e2e basics with Cypress/Playwright.

AWS and runtime — strong hands-on: Identity and access: IAM roles/policies, least privilege, cross-account basics, secrets management patterns.

Infrastructure as Code: Terraform or CloudFormation/CDK (one strongly); environment promotion strategy (dev/test/prod), parameterization, drift awareness.

Containerization: Docker images, health checks, resource limits, multi-stage builds.

Core AWS fluency (expected to have shipped production workloads): Compute: ECS and EC2 autoscaling concepts Networking: VPC, subnets, security groups, NACL basics, private vs public connectivity Storage/data: S3; RDS/Aurora Postgress fundamentals; DynamoDB awareness even if not primary Integration: SQS/SNS Observability: Splunk and CloudWatch logs/metrics/alarms, log retention, dashboards Data and persistence — advanced: SQL: indexes, query plans, joins, transaction semantics; can tune “slow query” issues end-to-end (app DB). Migrations: Flyway/Liquibase discipline; zero-downtime schema evolution patterns.

Caching: Redis (ElastiCache) usage patterns, TTL design, cache stampede prevention, invalidation strategy.

Observability and production excellence — expert: Structured logging with correlation IDs; PII redaction discipline.

Metrics SLO thinking: latency/error rate saturation signals; actionable alarms (not noise). Tracing: Open Telemetry Operability: runbooks, on-call readiness, meaningful postmortems with preventative actions.

Testing and quality — expert: Backend: JUnit5, Mockito, Spring test slices, Test containers; contract tests (Pact) preferred for service-to-service APIs.

Performance: basic load testing and interpreting results; capacity and tuning recommendations.

Security: SAST/dependency scans; remediates CVEs quickly and safely.

Security (practical, senior-level) — non-negotiable: AuthZ: RBAC/ABAC concepts; least privilege both in app and AWS IAM.

Secrets: no secrets in code/logs; uses managed secrets and rotation patterns.

Additional Skills: Full Stack Java Developer with Spring Batch, AWS(ECS, S3, Lambda), Infrastructure, Aurora Postgres DB, Kafka excellent communication.

Note: Contract position only, RTH not guaranteed at this time.

Pay Range: $70/hr - $75/hr The specific compensation for this position will be determined by a number of factors, including the scope, complexity and location of the role as well as the cost of labor in the market; the skills, education, training, credentials and experience of the candidate; and other conditions of employment.

Our full-time consultants have access to benefits including medical, dental, vision and 401K contributions as well as any other PTO, sick leave, and other benefits mandated by appliable state or localities where you reside or work.