Senior Software Engineer (Backend / Full-Stack)

About

Arterns helps small and mid-sized businesses stay compliant and run their back office efficiently. We build the platform that makes that possible and our team owns the engineering behind it.

What You Will Own

This is a hands-on senior role. You will own the backend and the technical standard of a product being built for real businesses.

• Build and harden production backend services in Go
• Set the bar for code quality, security, and reliability - and hold the team to it
• Make the architecture calls, and own the trade-offs behind them
• Own deployment and keep the platform stable in production
• Raise the whole team's pace by using AI development tools well

You May Be a Good Fit If You

• Have 8+ years building real production systems, and can point to ones you are proud of
• Know Go - or are a strong Python / Java / C# / Node engineer who can convert to Go quickly with AI tools (most Go engineers converted from another language)
• Think in terms of trade-offs, not just features - you weigh security, performance, and maintainability
• Have raised the standard of a team around you, formally or informally
• Use AI coding tools as an amplifier, and want to work somewhere that expects it
• Are comfortable owning your work end-to-end without heavy process

Nice to Have

• SaaS or B2B platform experience
• Interest in AI/LLM integration
• Familiarity with data-protection (GDPR) requirements

This Role Is Not for Everyone

You will have real ownership and move fast, with little process to hide behind. Engineers who want to own outcomes and set the standard thrive here. If you prefer a large, highly structured organisation with narrow scope, this is not the right fit - and that is completely fine.