Backend Engineer (Rust) Help us build a greener bank

About Green-Got
At Green-Got we believe in transforming the financial landscape as a necessary step to create a sustainable future. We provide modern payment and investment solutions that positively impact the planet. Our team of nearly 50 is dedicated to making finance accessible and engaging for everyone.

The context
Were building our own core banking system from the ground up that handles account management SEPA payments card issuing and processing ledgers and authorization flows. Our stack is almost entirely Rust and were looking for engineers who love writing solid well-tested Rust.

The Role

Youll join our engineering team and work on the business side of the platform. Customer-facing features back-office tools and the workflows that make the bank actually run day-to-day. Youll pair with another engineer and collaborate closely with product ops risk and customer support teams.

Were looking for a backend engineer who thinks like a product engineer: someone who cares about the user problem behind the ticket pushes back on specs that dont make sense and ships things that actually solve the problem rather than just match the description.

You should also be comfortable working with AI tools. Whether you love it or are skeptical AI is part of how we build now.

You dont need to come from a banking background but you should be curious enough to learn the domain. Banking is messy the specs are dense and the regulations matter. The system does not work as the bankers specify it; it works as the developers understand it.

Tasks

Responsibilities

• Build and maintain our backend. From new customer-facing features to the back-office tools our ops risk and support teams use daily.
• Take a problem from product wants this to its running in production: discuss the scope design the data model write the code write the tests ship it watch it fix what breaks.
• Sit with product managers and front-end devs early enough to actually shape what gets built not just implement it.
• Work with the security and risk teams when what youre building touches money customer data or regulatory requirements (which is often).
• Review your teammates code seriously. Catch bugs push back on shortcuts and learn from what theyre doing better than you.
• When something is slow broken or annoying to work with fix it instead of routing around it.
• Define your own scope. Your perimeter is what you take over. Autonomy and initiative are non-negotiable. We dont have the time to tell you what to do and we dont want to.

Requirements

Required skills

• You write Rust comfortably and have shipped it in production. Youre not still fighting the borrow checker.
• Youre solid with PostgreSQL: you can design a schema write a query that doesnt melt under load and reason about transactions and indexes.
• Youre comfortable in AWS and with a normal git/GitHub workflow (PRs reviews rebases the usual).
• You can write clear English in code reviews in docs in async messages. We dont all share a timezone so writing things down well matters.
• You sweat the banking the bug you didnt think mattered is the one that costs us money.

Not required but big bonuses

• Youve used Temporal or built something similar yourself.
• Youve practiced DDD CQRS Event Sourcing or hexagonal architecture on a real project (not just read the book).
• You know payment systems cards SEPA ledgers ISO 8583 ISO 20022 Mastercard processing. Any of these is a plus.

Benefits

• Team: 50 people low ego high trust. We hire carefully and we stick around.
• Impact: every euro that flows through Green-Got is a euro not funding fossil fuels. The product matters.
• Trust: youll own real things quickly. No one is going to babysit your PRs.
• Growth: the company is scaling fast and so is the scope of what you can take on.
• Flexibility: full remote is the default. Work where and when you want as long as the work happens. We meet in person every 3 months.
• Challenge: core banking is genuinely hard. The requirements are strict the edge cases are real the regulator is watching.
• PTO: 5 weeks base 2 weeks RTT.