We are hiring: Software Engineer - Backend Platform

Stockholm, Sweden
Full-time position

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Job Description

What You’ll Work With

You will work with technologies such as:

Java
Spring Boot
Kafka
PostgreSQL
Docker

You do not need to be an expert in every technology from day one, but you should have strong backend engineering fundamentals and a serious interest in building reliable distributed systems using this type of stack.

What You’ll Do

Build backend services and platform components using Java and Spring Boot
Design and implement APIs, data models, internal tools, and product-facing systems
Work with Kafka-based event-driven architecture and high-throughput transaction flows
Build systems using PostgreSQL, where performance, correctness, and observability matter
Build services designed to run in a modern containerised environment
Contribute to technical decisions around consistency, latency, scalability, reliability, and security
Write clear, maintainable, well-tested code with a strong focus on robustness
Participate in code reviews, system design discussions, and technical trade-off decisions

Qualifications

Who You Are

You have strong computer science fundamentals
You are comfortable working with backend systems and databases
You can reason clearly about correctness, concurrency, performance, and system design
You are interested in distributed systems, event-driven architecture, and production-grade engineering
You learn quickly and enjoy working across different parts of the stack
You are ambitious, self-driven, and motivated to grow in a high-performing engineering environment
You want to work in a small team with high standards and direct technical feedback

What Will Strengthen Your Application

Experience with Java and Spring Boot
Experience with Kafka or other event-streaming/message-driven systems
Strong understanding of PostgreSQL or relational database design
Experience with Docker or containerised development workflows
Experience building systems where performance, correctness, reliability, or security mattered
Internship experience or a few years of software engineering experience in a technically demanding environment
Strong academic results from a rigorous technical university or program
Personal, open-source, academic, or professional projects that show technical depth and ownership
Competitive programming, hackathons, olympiads, research, or other high-signal technical achievements
Clear communication and the ability to discuss technical trade-offs thoughtfully

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Additional Information

We’re building something new within Evolution

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This is not a role focused on maintaining mature systems or working inside a fixed technical setup. It is an opportunity to help build a new platform from first principles, using modern backend technologies to solve hard engineering problems under real production constraints.

The system we’re building will operate across regions and process thousands of real-money transactions per second with strict consistency guarantees. Low latency, correctness, performance, and security are not things we optimise for later. They are design constraints from day one.

We are looking for software engineers who want to work close to the core of the platform: backend services, event-driven systems, databases, and performance-critical product flows.

Our benefits are

Competitive pension, health and medical insurance
30 paid vacation days
Fitness benefit (Friskvårdsbidrag)
Professional growth
Sport activities, parties, team buildings

This is a 100% on-site position. Based in Stockholm, Sweden.

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