Senior Backend Architect for Scalable Commerce SaaS

Omnium; Oslo; On-site; NOK 900,000 - 1,200,000; Full time

Benefits offered by this job

Architecture influence

Modern SaaS platform

Flexible workday

Company trips and events

Job summary

Omnium is building a cloud-native Order Management System for major Nordic retailers. As a fullstack developer, you’ll own parts of a SaaS platform, working across backend (C#/.NET, API) and frontend (Vue.js) to deliver scalable commerce solutions.

You’ll collaborate closely with product and design, taking technical ownership from idea to production in a fast-paced environment. You should bring 5+ years in SaaS or complex production systems, deep C#/.NET backend experience, and a solid grasp of

Qualifications

• 5+ years as a developer in SaaS or complex systems.
• Solid expertise in C# and .NET; backend services & APIs.
• Understanding of architecture, domain modelling, and databases.
• Experience with Vue.js is a plus.

Responsibilities

• Own development of a modern SaaS platform across back-end and front-end.
• Translate business needs into robust technical solutions.
• Collaborate with product and design to move ideas to production.
• Participate in architecture and code reviews to improve quality.

Skills

C#/.NET

Vue.js

API design

Architecture

Domain modelling

Communication EN/NO

Tools

Azure

Elasticsearch

Job description

Omnium is building a cloud-native Order Management System for major Nordic retailers. As a fullstack developer, you’ll own parts of a SaaS platform, working across backend (C#/.NET, API) and frontend (Vue.js) to deliver scalable commerce solutions.

You’ll collaborate closely with product and design, taking technical ownership from idea to production in a fast-paced environment. You should bring 5+ years in SaaS or complex production systems, deep C#/.NET backend experience, and a solid grasp of