Senior Backend Engineer (Java/Spring Boot)

About Our Client - ImmiHub

ImmiHub is a technology platform that helps immigrants in the US securely manage their documents, track visa deadlines, and stay compliant. We serve a large and underserved market and are building a product that people genuinely rely on.

The Role

We're looking for a senior backend engineer to build and own our backend from the ground up. You'll work closely with our CTO, who provides architecture guidance and reviews all code. This is a high-ownership role - you're not joining a large team, you're the person who builds and ships the backend.

What You'll Work On

Design and build RESTful APIs consumed by a cross-platform mobile and web app Implement secure user authentication and authorization Build document management features including cloud storage and automated processing pipelines Develop background job processing for scheduled tasks and async workflows Set up and manage cloud infrastructure on AWS Write clean, tested, production-ready code from day one

Must-Have Skills

Java 17 and Spring Boot 3.x - production experience, not just familiarity PostgreSQL - schema design, query optimization, JPA/Hibernate AWS - hands-on with EC2, S3, RDS and at least 2–3 other services REST API design - clean contracts, proper error handling, Swagger/OpenAPI docs JUnit 5 + Mockito - testing is not optional here Flyway or Liquibase for database migrations Git - clean branching, PR workflow, descriptive commits

Nice to Have

Experience with async messaging (SQS, RabbitMQ, or Kafka) AWS Cognito or similar managed auth services OCR or document processing integrations Background in healthtech, fintech, or legal/immigration tech

Why ImmiHub

You own the entire backend - architecture decisions, schema design, API contracts Modern stack from day one - Java 17, Spring Boot 3, PostgreSQL, AWS, no legacy Your code goes into production fast - 2-week sprints, no bureaucracy Real users, real impact - people will depend on what you build