We are looking for a Senior Backend Engineer to design, build and maintain the backend services behind a cloud-based Quality Management System used by Life Sciences companies. This role is suited for a mature, experienced engineer who is comfortable working independently, makes sound technical decisions without close supervision, and uses AI tools as a natural part of daily development.

About the Project:

Our client is a fully remote SaaS company building a pre-validated Quality Management System for the Life Sciences industry. Their customers make life-saving and life-enhancing products, and the platform helps them manage quality, processes and products while staying compliant with regulatory requirements. You will join a scrum team or a small pod of 2-3 developers, working closely with UI developers, product managers, DevOps engineers and other team leads across several time zones. Go is the team's target backend language.

Responsibilities:

  • Design and build scalable backend services with robust REST APIs;

  • Apply Domain-Driven Design and microservice patterns to keep services loosely coupled and aligned with business domains;

  • Write unit and integration tests to keep services reliable in a regulated environment;

  • Look after services across their full lifecycle, including CI/CD, monitoring, diagnostics and maintenance;

  • Collaborate with UI developers, product managers, DevOps and other engineers to deliver complete features;

  • Support junior developers through code reviews and knowledge sharing;

  • Help the team get the most out of AI-assisted development.

Qualifications:

  • 5+ years of hands-on backend software development experience;

  • Commercial experience with Go, or some Go knowledge combined with strong Python or TypeScript skills and their web and testing frameworks;

  • Solid understanding of Domain-Driven Design and microservice architecture;

  • Strong experience designing and implementing REST APIs, with GraphQL or gRPC experience as a plus;

  • Experience with Kafka, MQTT or SQS, and a good understanding of message bus and queue concepts;

  • Understanding of UI/backend decoupling patterns such as CQRS or BFF, and of frontend patterns like MVVM/MVI;

  • Experience with SQL databases (PostgreSQL, MySQL or similar) and at least one NoSQL store (MongoDB, Elasticsearch or similar);

  • Hands-on Docker and Docker Compose experience, familiarity with basic Kubernetes concepts, and experience with AWS, Azure or GCP;

  • Experience with CI/CD pipelines (GitHub Actions, GitLab CI or similar) and with logging, distributed tracing and monitoring;

  • Strong unit and integration testing skills, including mocking strategies and secure, failsafe coding practices;

  • Daily use of AI tools as part of your development workflow;

  • Very good written and spoken English;

  • Valid EU work permit.

Recruitment Process:

  • Initial interview with our recruitment team;

  • Technical interview with the client;

  • Final decision and offer.

•••••• Sp. z o.o. is registered in the National Register of Employment Agencies (KRAZ) under number 35420.