Senior Software Engineer

About Unleash

Unleash is an open source feature management platform that helps development teams experiment faster with new features while reducing the risks of releasing software in production. Our mantra is “Create with freedom. Release with confidence.”

Modern software teams move fast, but releasing code safely is still one of the hardest parts of building software. That is why we created Unleash. Our platform allows teams to separate deployment from release, run controlled experiments, and roll out new functionality safely in production.

Unleash started as an open source project on GitHub in 2015. As adoption grew, the company was founded in Oslo in 2019. Today, the platform is used by thousands of development teams around the world, from startups to large enterprises running mission-critical systems. This year, Series B funding has been announced.

We are a remote-first engineering company building tools for developers, by developers. Our mission is simple. Make life easier for developers so they can ship better software faster.

We are now growing our engineering team and looking for a Senior Software Engineer who wants to help shape the future of feature management.

About the position

As a Senior Software Engineer at Unleash, you will work on the core platform that enables development teams around the world to control how software is released in production through feature flags, gradual rollouts, and experimentation.

This is a product-focused engineering role as described by this and this articles.

Your work will help shape platforms trusted by engineering teams in complex production environments, including companies such as Samsung, Docker, Visa, and Lenovo. This means building reliable and scalable systems that fit naturally into how modern teams ship code.

Engineers at Unleash take ownership across the entire lifecycle of a feature. This includes understanding developer needs, shaping solutions together with the team, implementing functionality, and improving systems once they are running in production.

You will work on a modern platform built around technologies such as TypeScript, Node.js, React, PostgreSQL, and cloud infrastructure (AWS).

Responsibilities:

Product discovery

• Work with product managers and designers to understand developer needs
• Validate ideas early through discussions, prototypes, or experiments

End-to-end feature development

• Design, implement, and ship new functionality
• Take ownership from design to deployment and improvements in production

Technical excellence

• Maintain high engineering standards across frontend and backend systems
• Improve performance, reliability, and maintainability of the platform

Reliability and automation

• Apply site reliability engineering principles to improve stability
• Automate operational tasks to reduce manual work

User interaction and support

• Engage with developers and users to understand how the platform is used
• Analyze feedback and help investigate customer incidents when needed

Who we believe you are

First of all, we believe you enjoy building products that developers rely on.

You care about solving real problems for users, not just writing code. You are interested in how systems behave in production and are comfortable taking ownership of the software you build.

We believe you:

• Bring 10+ years of experience building and operating software systems
• You have been working both backend and frontend and you know your way around code
• Enjoy working across the full development lifecycle from idea to production
• Don’t wait for a “specification”, you own the ‘problem space’ by collaborating with product managers and designers in product teams
• Like solving complex technical problems and improving existing systems
• Are curious about how developers use the tools you build
• Enjoy working in environments where engineers have ownership and autonomy

It is also nice if you have

• Experience building developer tools or platform products
• Experience working with cloud infrastructure and production environments
• Experience contributing to open source projects
• Experience working in startup or scaleup environments

What is in it for you

• Ownership of the systems you work on and the freedom to shape how the platform evolves
• Work in a highly skilled engineering team focused on building high-quality developer tools
• Be part of a global open-source ecosystem used by thousands of developers
• Collaborate directly with product and engineering leadership in shaping the platform
• Flexible working environment in a remote-first company
• Two company off-sites per year, where the whole team meets in European cities
• Everything you need to do your best work

Fast track instructions:

1. Skip the AI cover letter approach, unfortunately this is no longer useful in today's world.
2. From all the job experiences in your CV, extract only those companies that had SaaS products in public cloud, and highlight them!
3. Tell us about your most memorable production incident from one of these companies. What happened, how did you debug it, and what did you learn? Bonus points if it involved something unexpected or quirky!