Senior Full-Stack Architect — Mentorship & Migration Lead

Gubra; Hørsholm; On-site; DKK 900,000 - 1,200,000; Full time

Job summary

Gubra is seeking a Senior Full-Stack Developer to join our engineering team in Hørsholm. You will work across the stack (Python/FastAPI backend, React frontend), and help migrate legacy apps to our modern platform.

This hands-on role includes mentoring junior engineers, defining engineering practices, and driving reliable delivery. You will collaborate with ML and product teams to shape architecture and tooling in a fast-paced biotech tech environment.

Qualifications

• 7+ years of professional software development experience.
• Strong proficiency with React and TypeScript.
• Strong proficiency with Python, and experience building APIs with FastAPI.
• Experience with relational databases.
• Experience with AWS services.
• DevOps experience, e.g. CI/CD with GitHub Actions.
• Experience with Docker and container orchestration.
• Demonstrated experience mentoring or guiding other engineers, whether through formal reports, code review, or informal technical leadership.
• Strong communication skills. Specifically, an ability to explain technical tradeoffs clearly to both engineers and non-technical stakeholders.

Responsibilities

• Design, build, and ship features across our stack: Python/FastAPI on the backend, PostgreSQL for data persistence, occasionally light frontend work with React.
• Lead and contribute to the migration of legacy R Shiny applications to our modern stack.
• Design and maintain cloud infrastructure on AWS (storage, compute, and related services).
• Build and improve CI/CD pipelines using GitHub Actions.
• Mentor junior and mid-level engineers through pair programming, code review, and design discussions.
• Help define and improve engineering practices: coding standards, testing strategy, documentation, and architecture decisions.
• Participate in technical planning and contribute to decisions about system design and tooling.
• Troubleshoot and resolve production issues across the stack.

Skills

7+ years experience

React

TypeScript

Python

FastAPI

AWS

CI/CD

Docker

Mentoring

Communication

Tools

React

TypeScript

Python

FastAPI

PostgreSQL

AWS

GitHub Actions

Docker

Job description

Gubra is seeking a Senior Full-Stack Developer to join our engineering team in Hørsholm. You will work across the stack (Python/FastAPI backend, React frontend), and help migrate legacy apps to our modern platform.

This hands-on role includes mentoring junior engineers, defining engineering practices, and driving reliable delivery. You will collaborate with ML and product teams to shape architecture and tooling in a fast-paced biotech tech environment.