Trustly5mo ago

Senior Software Engineer (Golang)

StockholmFull-timesenior

Software EngineerSoftware Engineering

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Quick Summary

Overview

WHO WE ARE At Trustly, we're building a smarter, faster, and more secure financial future by revolutionizing the world of payments. As a global leader in Open Banking Payments,

Technical Tools

Software EngineerSoftware Engineering

WHO WE ARE

At Trustly, we're building a smarter, faster, and more secure financial future by revolutionizing the world of payments. As a global leader in Open Banking Payments, we are establishing Pay by Bank as the new standard at checkout, providing unparalleled freedom, speed, and ease to millions of consumers and merchants worldwide.

Our Ambition: To build the world’s most disruptive payment network and redefine what the payment experience should feel like.

Trustly is a global team of innovators, collaborators, and doers. If you are driven by a strong sense of purpose and thrive in a dynamic, entrepreneurial, and high-growth environment, join us and be part of a team that’s transforming the way the world pays.

At Trustly, we aren’t just processing payments; we are building the world’s most resilient financial network. The Transfer & Funds team is the engine room of this mission. We are the architects and guardians of Trustly’s financial integrity, responsible for the core systems that ensure instant, reliable settlements for millions of users worldwide.

We are currently undertaking a massive evolution of our infrastructure: transitioning our core financial logic from a high-volume Postgres monolith into a clean, Go-based distributed architecture. We are looking for a Senior Engineer who thrives on technical complexity and wants to leave a legacy by building our next-generation transactional systems.

What We Offer

~1 min read

✓Modernize the Core: Play a lead role in moving mission-critical logic out of a centralized Postgres monolith and into a high-velocity, domain-driven environment.

✓Build for 99.99%: Architect and maintain the systems responsible for our Transfer System and Transactional Ledger, ensuring absolute data integrity and high availability.

✓Solve Distributed Complexity: Design services that handle high-concurrency and global scale, ensuring that every transaction is atomic, consistent, and resilient to failure.

✓Define Target Architecture: Contribute to the long-term technical vision of how Trustly handles money movement, balancing the need for rapid feature delivery with the rigor of financial accounting.

Primary: Golang, PostgreSQL.

Architecture: Distributed Microservices, Event-Driven Patterns.

Infrastructure: AWS, EKS, Terraform, Datadog.

Strong Go Expertise: You have 5+ years of experience building robust, production-grade backend systems in Golang. You write idiomatic code and have a deep understanding of Go’s concurrency model and performance characteristics.

System Design & Distributed Architecture: You understand the nuances of distributed systems. You know how to build application-level safety nets, handle partial failures, and ensure "exactly-once" processing across service boundaries.

Relational Power-User: You have experience in SQL and relational databases, like PostgreSQL. You understand transaction isolation, locking strategies, and how to refactor schemas under heavy production load.

Migration Experience: You’ve successfully moved logic out of legacy environments into modern architectures. You know how to bridge the old and the new without disrupting live operations.

High-Availability Focus: You design for failure. You value observability and have experience running mission-critical services in AWS/Kubernetes environments.