We're looking for a Senior Backend Engineer to join one of our engineering teams in the Vinted Pay domain, where you'll be responsible for keeping our platform safe from financial crime.

What the team does:

Team builds and maintains the systems that screen every new account for money-laundering risk and provides the tooling to resolve screening and risk alerts. Think of it as Vinted's silent guardian — watching every account with precision and making sure bad actors are caught before any harm is done.

What you'd work on:

• Account screening systems — automated pipelines that evaluate new accounts against AML (Anti-Money Laundering) regulations and risk signals
• Risk assessment & alert resolution tools  — internal tooling that enables analysts to efficiently review and act on flagged accounts and risk alerts

Team setup:

You'd join a cross-functional team consisting of a Product Manager, an Engineering Manager, a Data Scientist, a QA Engineer, and a strong group of Backend Engineers. The team is backend-heavy, which reflects the complexity and criticality of the domain.

Why it matters:

Financial crime prevention is a regulatory requirement and a core trust signal for our users. The systems you build directly protect millions of Vinted members and ensure the platform's integrity.

• Apply Agile and Lean principles in your work. We don't rigidly adhere to a single framework. We view Scrum, Kanban, and other methodologies as tools, selecting the most beneficial one for the team to achieve its goals.
• Collaborate with other developers through GitHub pull requests and code reviews. Our pull requests move fast: time to first review is up to 13 min, average pull request cycle time (from open to merge) is up to 2 hours.
• Use AI tools such as Cursor, GitHub Copilot, Claude Code, and others to improve your code.
• See your code to affect millions of users almost instantly. Our main branch gets rolled out straight to production on each merge. We deploy many times per day.
• Work with diverse tech stack, including: languages: Go, Ruby; cloud infrastructure: AWS; databases/storage: MySQL, Elasticsearch, Redis; workflow orchestration: Temporal; monitoring/observability: Prometheus, Grafana. We don't expect you to be familiar with all of them beforehand, but we expect you to be excited to learn them fast.
• Write unit tests for all of the code you write and contribute to integration and e2e test writing and its usage.
• Take ownership of critical alerts and business metrics for your team to ensure our services achieve 99.99% availability. 
• You will participate in on-call rotations to ensure our product performs well.

You're the kind of engineer people go to when things get tricky — not because you have all the answers, but because you help the team find them. You ship solid work, but what really matters at the senior level is that you make the people around you better.

• You take ownership of features and projects from start to finish, and you break problems down so others can tackle them too — not just you.
• You mentor, onboard, and share knowledge generously. You don't hoard context.
• Your code is clean, well-tested, and reviewed thoughtfully. You raise the bar without being a gatekeeper.
• You document what you build — proposals, RFCs, ADRs — so the next person doesn't have to reverse-engineer your thinking.
• You know at least one language deeply (concurrency, memory, the ecosystem around it), and you're comfortable with API design, caching, and system architecture.
• You care about observability and monitoring — if something breaks at 3 am, your team shouldn't be flying blind.
• You connect the dots between technical work and business impact, and help your team see why it matters.
• You work well across domains — whether that's pairing with Design, Data, Legal, or InfoSec to get things unstuck.
• You stay calm and effective when things are ambiguous or on fire. You know when to push through and when to pull in help.
• You use AI tools effectively for debugging, code optimization, and complex tasks — and you help others get better at it too.
• You contribute to hiring — not just showing up for interviews, but giving feedback that actually helps us make good decisions.

In short: you're someone the team can count on — to solve hard problems, yes, but more importantly, to help everyone around you do their best work.

• The opportunity to benefit from our share options programme
• 25 working days of holiday
• Access to all the tools & tech needed for work
• Home office support: we provide IT workstation equipment and a personal budget of up to €540 for home workplace furniture
• Private health insurance
• Mental and emotional health support through the Mindletic app
• Frequent team-building events
• A personal monthly budget for shopping on Vinted
• The opportunity to spend up to 90 days per year - 21 of which can be spent working outside of the EU - on workation
• A dog-friendly office
• In Vilnius office: Gym & in-house meals at friendly prices
• In Kaunas office: a monthly lunch allowance, and a once-a-week provided in-house lunch and breakfast

Individual Learning Budget

We invest in your professional growth! As part of our commitment to continuous learning, we offer an annual learning budget to support your personal and career development through courses, certifications, workshops, and more.

Hybrid Work

We’ve adopted a hybrid workplace model where 2 days in the office are recommended but not enforced. It’s up to you and your team to decide on the exact days you’ll spend working together in person.

Equal Opportunity

The Vinted Group is committed to building an inclusive workplace where people from all walks of life feel a sense of belonging. We welcome applications from people of all backgrounds, identities, and life experiences. At Vinted, all applicants are treated fairly without regard to their race, age, religion or belief, sex, national origin, citizenship, gender identity, sexual orientation, disability, or any other protected characteristic.

The salary range for this position is € 4,975 - € 6,725 gross per month.