Backend Developer (Golang / Java

CGI•Merrimack, NH

21h•Hybrid

About The Position

CGI is a global IT and business consulting services firm delivering end-to-end solutions that drive meaningful outcomes for clients worldwide. With a strong presence across industries and a collaborative, ownership-driven culture, CGI empowers professionals to build innovative solutions while shaping mission-critical systems at scale. We're seeking a Backend Developer with strong experience in Golang and/or Java to build scalable, high-performance systems and APIs. This role is ideal for engineers who thrive in polyglot environments, working across modern backend technologies to design and deliver distributed, cloud-native applications. You'll collaborate with cross-functional teams to build secure, reliable, and efficient systems that operate at scale, as well as solve complex engineering challenges with real business impact within a culture that is focused on innovation, ownership, and continuous learning. This position is located at the client site in Merrimack, NH (preferred) or Westlake, TX.

Requirements

6+ years of overall IT experience (consulting experience preferred)
Strong hands-on experience in Golang and/or Java backend development
Experience with Spring Boot (for Java) or strong Go expertise
Experience building REST APIs and/or gRPC services
Solid understanding of microservices architecture
Experience with Docker and Kubernetes
Hands-on experience with SQL/NoSQL databases
Familiarity with Git and CI/CD pipelines
Strong communication and collaboration skills

Nice To Haves

Experience working in polyglot environments (Go + Java)
Experience with cloud platforms (AWS, Azure, GCP)
Exposure to event-driven architectures
Familiarity with monitoring tools (Prometheus, Grafana)
Experience with high-scale distributed systems

Responsibilities

Design, develop, and maintain backend services using Golang and/or Java (Spring Boot)
Build clean, efficient, and maintainable code following best practices
Develop and maintain RESTful APIs and gRPC services
Write scenario-based tests (Cucumber or similar frameworks)
Contribute to system architecture and technical design decisions
Build scalable, distributed, and fault-tolerant systems
Optimize performance, scalability, and reliability
Develop and maintain microservices-based architectures
Integrate with internal platforms and third-party services
Work with messaging systems such as Kafka or RabbitMQ
Design and optimize SQL and NoSQL databases (PostgreSQL, MongoDB, etc.)
Ensure high performance, availability, and data integrity
Deploy and manage applications in cloud environments (AWS, Azure, GCP)
Use Docker and Kubernetes for containerization and orchestration
Collaborate with DevOps teams on CI/CD pipelines
Monitor, troubleshoot, and improve system performance
Implement secure coding practices, authentication, and data protection
Maintain documentation and follow version control best practices