Senior Backend Software Engineer

Since 2018, we’ve become one of Google’s largest CSS Premium Partners, powering Shopping ads for 1,000+ customers across 20,000+ Merchant Centres in Europe.

Fully self-funded, profitable and still expanding, we’re a strong and supportive team with a stable foundation. Now we’re looking for a new colleague who wants to be part of it for the long run: an engineer who gets a goal rather than a ticket, builds with AI as a natural part of the job, and takes ownership from idea to production.

Why adstrong

• 100% remote: work from anywhere in the EU, with flexible hours and no weekend or night work.

• No process chaos: documentation and procedures are well-structured and digital.

• No politics: we encourage proactive decisions and make ours within 24 hours.

• Stable and growing: a fully self-funded, fast-growing company with no external investors.

• Small, skilled team: a hands-on tech team of around 6 people.

• Great working culture: supportive colleagues who help each other and share knowledge openly.

• AI-first: coding agents are how we build, and your judgement is what matters.

• Attractive compensation: plus all the equipment you need.

• Missing anything? Mention it in your application, and we’ll see if we can make it happen.

What you will do

• Build AI-first: plan with AI, drive coding agents and review their output with a critical eye.

• Get a goal, not a ticket: work directly with colleagues on the business side to gather requirements, align on the solution and build it into working software.

• Make sound architecture and data-model decisions, keeping our systems fast and reliable as we scale.

• Take ownership of existing applications and build new solutions for our affiliate business.

• Design and develop event-driven backend systems that handle large volumes of product and campaign data, mostly in Rust and partly in Python.

• Own your topics end to end and keep the team and stakeholders in the loop along the way.

What you bring

• Experience contributing to a strong engineering culture, e.g. through code reviews, knowledge sharing, or improving team tools and ways of working.

• Daily hands-on work with coding agents: you plan with AI, delegate the implementation and know how to review what comes back, including more complex workflows like one model writing code while another reviews it.

• Strong architectural awareness: you know which components and infrastructure to use for which problem, and how to structure what you build.

• Rust experience, or curiosity about it and readiness to make it your main language, as most of our backend is written in it. C or C++ experience is a strong alternative.

• Experience solving problems close to ours, ideally in e-commerce, affiliate marketing, Google Shopping, Google Ads or other data-heavy web platforms. Our business team will help you build the domain knowledge.

• Experience with event-driven systems (e.g. Kafka, AWS SQS/SNS or similar)

• A solid grasp of the full engineering process: requirements, design, trade-offs, testing and maintainability

• Mid- or senior-level experience. We care more about how you think and work than about years on paper. Our business team will help you build the domain knowledge.

• A Bachelor’s degree in computer science or a related field.

• Business-fluent English (C1).

Our stack: Rust (plus some Python) on the backend, and TypeScript / Next.js on the frontend. The frontend is owned by our frontend engineers, so experience there is a plus but not required.

How you work

• You communicate clearly and proactively. You’re comfortable talking to business colleagues, ask the right questions early, share progress without being asked and explain technical trade-offs in plain language.

• You value good engineering culture. We improve as a team, so honest feedback matters to us, and so do your ideas for improving our team culture, tools and the way we work in IT.

• You organize yourself. Give you a goal, and yo