Senior Go Backend Engineer — Scale Merchant Tech

Wolt Oy; Helsinki; On-site; EUR 75,000 - 110,000; Full time

Job summary

Wolt Oy is seeking an experienced Software Engineer to join the Go initiative within the Merchant Group in Helsinki. You’ll design, build, and scale reliable systems powering merchant experiences, and work across the full development lifecycle from business logic to cloud infrastructure.

You’ll use Go or Kotlin, mentor juniors and peers, and collaborate on architecture choices in a fast-growing environment that rewards ownership, learning, and pragmatic solutions.

Qualifications

• Experience building scalable Go/Kotlin services.
• Strong understanding of distributed systems and data streaming.
• Experience mentoring juniors and peers on engineering practices.

Responsibilities

• Design, build, and scale reliable systems powering merchant experiences.
• Work across the full development lifecycle, from business logic to cloud infrastructure.
• Collaborate on architecture and technology choices for simplicity and scalability.
• Grow skills by learning from and mentoring teammates.

Skills

Go

Kotlin

Distributed systems

Mentoring

Tools

PostgreSQL

MongoDB

Kafka

Docker

Kubernetes

AWS

Job description

Wolt Oy is seeking an experienced Software Engineer to join the Go initiative within the Merchant Group in Helsinki. You’ll design, build, and scale reliable systems powering merchant experiences, and work across the full development lifecycle from business logic to cloud infrastructure.

You’ll use Go or Kotlin, mentor juniors and peers, and collaborate on architecture choices in a fast-growing environment that rewards ownership, learning, and pragmatic solutions.