Senior Java Backend Developer ONSITE
Senior backend Java developer (8+ yrs) building Spring Boot REST APIs and microservices, modernizing legacy systems into cloud-ready architectures for a long-term on-site federal contract in Woodlawn, MD. Work spans AWS/Azure/GCP, Kafka, Docker/Kubernetes, observability, and security/compliance.
- Compensation
- Not disclosed
- Location
- Woodlawn, United States
- Work setup
- Onsite
- Seniority
- Senior
- Employment
- Contract
- Experience
- 8+ years
- Category
- Backend
- Posted
Skills
Must have
- 8+ years backend engineering experience
- Expert-level Java, Spring Boot, REST API development
- Strong microservices and distributed systems experience
- SQL/NoSQL, CI/CD, containerization
- Ability to work on-site in Woodlawn, MD
- Bachelor's degree
- Cloud platform knowledge: IAM roles, VPC, security groups, load balancers, API gateways
- Cloud-native event & messaging systems (AWS SNS/SQS, Kafka, Pub/Sub)
- Networking concepts: HTTP/TCP, DNS, SSL/TLS, service discovery, reverse proxies (NGINX, Envoy)
- Docker fundamentals and Kubernetes basics
- CI/CD concepts (GitHub Actions, Jenkins, GitLab)
- Observability: logging (Logback, SLF4J), metrics (Micrometer + Prometheus), tracing (OpenTelemetry, Jaeger, Zipkin)
- Messaging & integration: Kafka, RabbitMQ/AMQP, JMS, webhooks
- Security & compliance: OAuth2/OIDC, JWT, secrets management (Vault, AWS Secrets Manager), rate limiting, circuit breakers
Nice to have
- Prior federal agency experience (SSA, CMS, DHS, USDA)
- AWS, Kafka, OpenShift
- Infrastructure-as-Code: Terraform and Helm basics
Full description
Senior Backend Java Developer – Largest Federal Enterprise, Woodlawn, Maryland
On-site • Exceptional Pay • Long-term Federal Contract ONSITE ALSO INTERIVEW ONSITE
We’re seeking a Senior Backend Java Developer to support mission-critical systems at the Largest Federal Enterprise in Woodlawn, MD. This is an on-site role with outstanding contractor pay and the kind of long-term stability this opportunity is known for.
The work directly supports what many consider the greatest humanitarian program ever created — —Largest Federal Enterprise established under President Franklin D. Roosevelt and still serving millions of Americans every day.
Key Responsibilities:
Java/Spring Boot development for large-scale backend systems
Build and maintain RESTful APIs supporting millions of transactions
Modernize legacy systems into scalable, cloud-ready architectures
Collaborate with architects, product owners, and federal stakeholders
Ensure performance, security, and reliability across all backend services
Cloud Platforms (AWS, Azure, GCP)
Understanding how backend services interact with cloud infrastructure:
IAM roles/permissions
VPC, subnets, security groups, firewalls
Load balancers, API gateways
Cloud-native event & messaging systems (e.g., AWS SNS/SQS, Kafka, Pub/Sub)
- Networking & Infrastructure Concepts
HTTP/TCP basics, DNS, routing
SSL/TLS, certificate management
Service discovery
Reverse proxies (NGINX, Envoy)
- DevOps & Deployment
Infrastructure-aware backend developers should know:
Docker fundamentals (images, layers, networking)
Kubernetes basics (deployment, config maps, services)
CI/CD concepts (GitHub Actions, Jenkins, GitLab)
- Observability & Reliability
Integration often means making services discoverable, measurable, and debuggable:
Logging frameworks (Logback, SLF4J)
Metrics (Micrometer + Prometheus)
Distributed tracing (OpenTelemetry, Jaeger, Zipkin)
Health checks and readiness probes
- Messaging & Integration Technologies
Apache Kafka (topic design, consumer groups)