Senior Full-Stack Engineer, SaaS for Fiber Networks

VX Fiber Service Delivery AB; Umeå kommun; On-site; SEK 700,000 - 900,000; Full time

Job summary

VX Fiber is seeking Senior Full Stack Developers to build our SaaS platform for fibre network operations. This role is for individuals who want to understand the problem, shape the solution, and take ideas all the way into production.

You will work across OSS and BSS+ with a backend primarily in Go, using Protobuf/gRPC, GraphQL, and a React/TypeScript frontend. The stack also includes Postgres, Mongo legacy, Temporal, Nomad, and AWS, with experience in these areas not strictly required.

Qualifications

• Strong backend engineering experience in any language.
• Shipped and operated SaaS products as part of a product team.
• Broad systems design skills and good data design judgement.
• Practical experience with testing and failure modes, plus observability in production.
• Hands-on experience with modern agentic development, including harnesses and context orchestration.

Responsibilities

• Clarify requirements with Product and Design, working directly with engineers and domain experts.
• Design services and data models. Propose architectural changes for Staff Engineers and Architects to review.
• Build mainly backend software, while being comfortable enough in the frontend to own a feature across the stack.
• Design tests around failure modes. Cover retries, bad data and unavailable dependencies.
• Treat operability and developer experience as part of feature development. Use logs, metrics and traces to understand production behaviour, and work with the Platform team to improve deployment, local development and feedback loops.
• Work hands-on with agents and harnesses, including context orchestration and agentic pipelines.
• Improve the team through reviews, mentoring and technical discussion.

Job description

VX Fiber is seeking Senior Full Stack Developers to build our SaaS platform for fibre network operations. This role is for individuals who want to understand the problem, shape the solution, and take ideas all the way into production.

You will work across OSS and BSS+ with a backend primarily in Go, using Protobuf/gRPC, GraphQL, and a React/TypeScript frontend. The stack also includes Postgres, Mongo legacy, Temporal, Nomad, and AWS, with experience in these areas not strictly required.