Full Stack Engineer

Primus Connect; United Kingdom; Remote; GBP 100,000 - 167,000; Full time

Job summary

Primus Connect is seeking a Go/Platform Engineer for a fully remote role based in the UK or Romania. The contract starts in December 2026 and runs for three months with a strong likelihood of extension.

You will design and build scalable, multi-tenant platforms, develop production-grade Go services, and work with Kubernetes and cloud-native infrastructure. You will also build APIs, SDKs and CLI tools, secure execution environments, and contribute to platform security, observability and

Qualifications

• Strong Go (Golang) experience with production systems.
• Hands-on Kubernetes and cloud-native infrastructure knowledge.
• Experience designing and operating multi-tenant platforms.
• Solid understanding of API design and integration principles.
• Good communication skills and customer-facing collaboration.

Responsibilities

• Design, build and maintain scalable multi-tenant platforms.
• Develop production-grade services using Go.
• Work with Kubernetes and cloud-native infrastructure.
• Create APIs, SDKs and CLI tooling across distributed systems.
• Advance platform security, authentication and access control.
• Improve reliability, monitoring and performance across systems.
• Collaborate with engineers and stakeholders on architectural decisions.

Skills

Go (Golang)

Kubernetes

Distributed systems

API design

Platform engineering

Tools

GitLab

Gitea

Coder

JupyterLab

Python

Rust

C++

GPU/CUDA

Job description

Contract Go / Fullstack Engineer – Fully Remote

Location: UK or Romania (Fully Remote)

Contract: 3 months initially – strong likelihood of extension

Start: December 2026

Join a specialist engineering consultancy looking for an experienced Go / Platform Engineer to join an established engineering team on a technically challenging platform engineering project.

This is an opportunity for someone who enjoys solving complex engineering problems, building scalable infrastructure and developing robust, production-grade platforms.

The role will involve working across platform architecture, cloud-native infrastructure, distributed systems and developer tooling, with a strong emphasis on Go development.

Key Responsibilities:

• Design, build and maintain scalable, multi-tenant platforms.
• Develop production-grade services and systems using Go.
• Work with Kubernetes and cloud-native infrastructure.
• Build and maintain APIs, SDKs and CLI tooling across distributed systems.
• Develop secure environments for executing user-submitted code.
• Contribute to platform security, authentication and access control.
• Improve system reliability, monitoring, observability and performance.
• Work collaboratively with engineers and stakeholders, contributing to architectural decisions and technical improvements.
• Strong commercial experience with Go (Golang).
• Experience building and operating multi-tenant platforms.
• Strong understanding of Kubernetes and cloud-native technologies.
• Experience with distributed systems, microservices and API design.
• Understanding of infrastructure as code and production deployments.
• Knowledge of platform security, authentication and access control.
• Strong software engineering fundamentals and system design experience.
• Good communication skills and the ability to work directly with customers and engineering teams.
• Python, Rust or C++.
• Experience with air-gapped or on-premises environments.
• Developer tooling such as GitLab, Gitea, Coder or JupyterLab.
• Sandboxing, workload isolation and secure code execution.
• High-availability systems, backup, restore and replication.
• Advanced testing techniques, including fuzzing and fault injection.
• GPU/CUDA-aware environments.
• Fully remote working.
• Candidates must be based in the UK or Romania.
• 3-month initial contract with a strong likelihood of extension.
• Potential for longer-term engagement, depending on project requirements.
• Targeting an early December start.