Senior Backend Engineer (Go) for Scalable Distributed Systems

Toku; Zuid-Holland; Hybrid; EUR 65,000 - 105,000; Full time

Job summary

Toku is expanding its European engineering presence from Rotterdam and is seeking a Senior Backend Engineer to design, build, and operate the distributed systems powering its cloud communications platform. You will work primarily in Go, contributing to customer-facing backend services, integrations, and shared infrastructure.

The role emphasizes backend depth, architectural thinking, production ownership, and initiative, with opportunities to influence technical direction across squads in a

Qualifications

• Backend engineering: design, build and operate production backend systems with ownership.
• Strong Go production experience for backend services.
• Experience with distributed systems, microservices and backend architectures.

Responsibilities

• Design, build and operate robust backend services and APIs powering Toku's platform.
• Develop scalable distributed systems and microservices with attention to scalability, reliability, latency and fault tolerance.
• Build and evolve event-driven systems using Kafka, AWS SQS, RabbitMQ and similar messaging platforms.

Skills

Go (Golang)

Distributed systems

Event-driven architectures

APIs & integrations

Cloud platforms (AWS)

Databases (SQL)

NoSQL technologies

Production engineering

Architecture & ownership

Observability

TypeScript (nice to have)

Communications domain (nice to have)

Tools

Kafka

AWS

RabbitMQ

DynamoDB

Cassandra

Redis

Job description

Toku is expanding its European engineering presence from Rotterdam and is seeking a Senior Backend Engineer to design, build, and operate the distributed systems powering its cloud communications platform. You will work primarily in Go, contributing to customer-facing backend services, integrations, and shared infrastructure.

The role emphasizes backend depth, architectural thinking, production ownership, and initiative, with opportunities to influence technical direction across squads in a