Senior Golang Engineer

Job Description

We are looking for a Senior Golang Developer to join a backend team working on a large edge portal platform composed of multiple Go services, API integrations, and cloud-connected components. This role is focused on designing and delivering reliable backend systems in a complex production environment, not just implementing isolated features.

You will work across REST APIs, service-to-service integrations, backend business logic, code generation workflows, testing, and delivery pipelines. The environment includes Go microservices, OpenAPI-based APIs, Dockerized services, CI/CD pipelines, observability, and integrations with databases, messaging systems, and cloud services.

Responsibilities

Design, build, and maintain backend services in Go across a multi-service platform

Own API implementation, service logic, integration flows, and production-grade error handling.

Work with OpenAPI and generated clients/server layers in a contract-first development model

Improve test coverage, service reliability, observability, and deployment readiness

Collaborate with DevOps, QA, and other backend teams on delivery and troubleshooting

Raise engineering standards across the codebase

Requirements

Senior-level experience in Golang backend development

Proven experience building and maintaining distributed systems or microservices in production

Deep understanding of REST APIs, HTTP, concurrency, error handling, and service lifecycle management in Go

Experience with API contracts, Swagger or OpenAPI, and generated code workflows

Experience with Docker and CI/CD-driven delivery processes

Experience with automated testing, including integration and service-level testing

Nice to Have

Experience with Azure-based services or cloud platform integrations

Experience with MongoDB, SQL databases, messaging systems, or edge/IoT platforms

Tech Stack Highlights

REST and HTTP services

OpenAPI, Swagger, go-swagger, oapi-codegen

Docker

Azure SDKs and Azure-integrated services

MongoDB, Cosmos DB-related integrations

messaging systems

YAML-based CI/CD pipelines

What You Will Love About Working Here

We care about all our employees and want them to feel as comfortable as possible. That's why we offer health insurance from the first days, regardless of the probationary period.The Gift from the Company - Christmas holidays from December 25 to December 31.Cooperation with Superhumans center and Veteran HUB. Capgemini Engineering has supported the launch of psychological rehabilitation department of Superhumans. Our team also donated over UAH 500 000 prosthetics for three Ukrainian defenders. Currently, we support psychological counseling provided by the Veteran Hub, and we have implemented an internal policy making the company friendly to military and veterans with the assistance of the Hub.