Back End Developer
Listed on 2026-02-14
-
Software Development
Backend Developer, Cloud Engineer - Software
hackajob on-demand focuses on matching talented contractors like you with organisations seeking specific skills for their projects. We use our platform to connect you with exciting contract opportunities and discuss projects on behalf of the companies we partner with.
Role is on-site in McLean, VA, 5 days/week
Local candidates only
Job Title:
Sr. Backend Java Developer
They’re looking for a Senior Backend Developer to join an Agile team responsible for a mission-critical web platform. You’ll work on stabilizing and enhancing existing systems while driving modernization using Java and AWS. This role suits a pragmatic, hands‑on engineer who enjoys owning backend systems end-to-end and shaping technical direction in a regulated environment.
What You’ll Do- Design, build, and maintain backend services using Java and Spring Boot
- Develop and evolve microservices and REST APIs
- Modernize legacy backend components while ensuring system stability
- Design and optimize Postgre
SQL schemas and queries. Integrate services with AWS (Lambda, S3, API Gateway, SQS, Event Bridge, etc.) - Apply event-driven and cloud-native patterns to improve scalability and resilience
- Write unit and integration tests and participate in code reviews
- Support production systems, debugging issues, and improving observability
- Collaborate closely with Product, Frontend, QA, and Dev Ops teams in an Agile environment
- Strong experience with Java and Spring Boot
- Solid understanding of backend architecture, microservices, and design patterns
- Hands‑on experience with AWS services
- Strong SQL skills and experience with PostgreSQL
- Experience working with legacy systems and incremental modernization
- Familiarity with CI/CD pipelines and containerized deployments
- Financial Services or Wealth Management experience is a plus
- Ownership mindset and strong problem‑solving skills
Java 23, Spring Boot 3.x
Architecture:
Microservices, REST APIs, event-driven systems
Database:
PostgreSQL
Cloud: AWS
Dev Ops:
Git, Gradle, Docker, CI/CD
Observability:
New Relic, Elasticsearch
Productivity:
Git Hub Copilot
(If this job is in fact in your jurisdiction, then you may be using a Proxy or VPN to access this site, and to progress further, you should change your connectivity to another mobile device or PC).