Senior Backend Engineer: AI-First & Scale

Wolt - English; Helsinki; On-site; EUR 90,000 - 130,000; Full time

Job summary

Wolt is hiring backend engineers who will shape AI-first engineering at scale from our Helsinki tech hub. You’ll own features end-to-end, collaborate across disciplines, and contribute to production reliability and tooling.

We value strong engineering fundamentals, enthusiasm for AI-driven workflows, and a bias for action. Be ready to ship in a fast-paced, globally distributed environment with real ownership and impact.

Qualifications

• Strong engineering fundamentals and proven ability to ship software that runs at scale.
• Genuine enthusiasm for AI-first development and hands-on use of AI tools.
• Ownership mentality with proactive communication across teams and time zones.
• Experience building and maintaining production-grade systems with testing and observability.

Responsibilities

• Own features end-to-end from idea to production.
• Collaborate with Backend, Mobile, Web, Product, Design, and Data teams across time zones.
• Write tests and contribute to reliability, monitoring, and incident response.
• Help shape architecture with opinions while staying pragmatic and adaptable.

Skills

Backend engineering

AI-first development

Ownership

Cross-functional collaboration

Testing & observability

Tools

APIs

Distributed systems

SQL/Databases

Docker

Kubernetes

Job description

Wolt is hiring backend engineers who will shape AI-first engineering at scale from our Helsinki tech hub. You’ll own features end-to-end, collaborate across disciplines, and contribute to production reliability and tooling.

We value strong engineering fundamentals, enthusiasm for AI-driven workflows, and a bias for action. Be ready to ship in a fast-paced, globally distributed environment with real ownership and impact.