Mid-Level Java Backend Engineer - AWS, Spring Boot, OpenSearch

Secretaria de Serviços Prefeitura de São Paulo; Winchester (VA); On-site; USD 95,000 - 135,000; Full time

Job summary

We are seeking a Mid-Level Software Developer to join our team in Winchester, VA. You will design, develop, and maintain scalable backend services within an AWS ecosystem using Java, Spring Boot, PostgreSQL, Redis, and DynamoDB. Experience with identity management and PKI/SSL security is preferred; TS clearance is required.

Responsibilities include building RESTful APIs, managing cloud infrastructure, and ensuring secure, high-performance operations across services in an agile environment.

Qualifications

• 3–6 years of software development experience with a strong Java background.
• Hands-on experience with Spring Boot for building RESTful APIs and microservices.
• Proficiency with AWS services including EC2, Lambda, S3, RDS, and DynamoDB.
• Experience with PostgreSQL via AWS RDS for relational data modeling and query optimization.
• Working knowledge of Redis for caching and session management.
• Experience with OpenSearch or Elasticsearch for search and log analytics.
• Familiarity with PKI/SSL certificate lifecycle management, TLS configuration, and secure service communication.
• Experience with Keycloak or comparable identity providers for IAM integration.

Responsibilities

• Design and develop robust, scalable backend services using Java and Spring Boot.
• Build and maintain cloud infrastructure and serverless solutions on AWS.
• Work with AWS RDS (PostgreSQL) and DynamoDB for relational and NoSQL data management.
• Implement and manage Redis caching layers to optimize application performance.
• Develop and maintain search and analytics capabilities using OpenSearch.
• Configure and integrate Keycloak for identity and access management, SSO, and OAuth2/OIDC workflows.
• Implement and maintain PKI/SSL certificate management and secure communications across services.
• Collaborate with DevOps and architecture teams to support CI/CD pipelines and cloud-native deployments.
• Participate in code reviews, technical planning sessions, and Agile sprint ceremonies.
• Troubleshoot and resolve performance bottlenecks, security issues, and system defects.

Skills

Java

Spring Boot

AWS

PostgreSQL

Redis

DynamoDB

OpenSearch

PKI/SSL

Keycloak

Tools

Docker

Kubernetes

Job description

We are seeking a Mid-Level Software Developer to join our team in Winchester, VA. You will design, develop, and maintain scalable backend services within an AWS ecosystem using Java, Spring Boot, PostgreSQL, Redis, and DynamoDB. Experience with identity management and PKI/SSL security is preferred; TS clearance is required.

Responsibilities include building RESTful APIs, managing cloud infrastructure, and ensuring secure, high-performance operations across services in an agile environment.