(Senior) Backend Engineer - Banking (f/m/x)

Lemon Markets · Germany (Hybrid)senior

In short

▸Ingeniero backend senior especializado en infraestructura bancaria para plataformas de inversión
▸Diseñas y gestionas sistemas de liquidaciones, pagos y contabilidad con enfoque en precisión, rapidez y cumplimiento regulatorio
▸Trabajas en un entorno de alta regulación y alta disponibilidad, con impacto directo en millones de inversores europeos

No se requiere inglés específico, pero el entorno es internacional y se maneja en inglés.

In ~1 minute you get: who interviews you, the likely questions answered from your CV, and your CV tailored to this job. Free, no card.

🎧Land the interview? Bring the copilot. Our free extension listens to the live interview and flashes 3-4-word anchors from your resume and prep — glance, connect, talk. Get the extension →

What they ask for

✓Experiencia comprobada en arquitecturas escalables y APIs REST confiables
✓Conocimiento en entornos cloud (AWS, GCP, Azure)
✓Experiencia con bases de datos relacionales (PostgreSQL, MySQL) o documentos
✓Capacidad de tomar propiedad total de sistemas y resolver problemas sin supervisión
✓Habilidades sólidas en escritura de código bien estructurado, mantenido y bien probado
✓Enfoque como ingeniero de producto con dominio del dominio financiero

Don't tick every box? That's normal — your free dossier shows your gaps and how to cover them in the interview.

PythonFastAPIAWSPostgresREST APIscloud environmentsrelational databasesdocument-based databasesAPI-first infrastructureregulatory frameworks

Who should you write to at Lemon Markets?

Your free dossier identifies the people who'd interview you — their background, what they value, and how to reach out so you stand out before applying.

markets 🍋 We enable anyone to be an investor. Our mission is to grow investing opportunities for all European customers and businesses. By empowering FinTechs, banks, and wealth managers to offer investment products, we help create financial well-being for their customers. markets is a Brokerage-as-a-Service platform: simple digital access to capital markets through a single API. Our API-first infrastructure abstracts brokerage complexity with a well-documented API, a self-service customer operations portal, and a clear regulatory framework, so partners can launch customer-centric, compliant products in weeks, not months. As part of the dwpbank group, we’re adding a layer of resources and expertise to benefit from, while continuing to operate as an independent fintech with our own team, product, and start-up identity under the dwpbank umbrella. markets, you will design and own reliable, scalable backend services that keep money moving safely and efficiently for our partners and their customers. Within this domain, you will build and operate systems across settlements, payments, and ledger accuracy, ensuring execution with partners is correct, cash flows are fast and reliable, and reconciliation reflects reality. You will take end-to-end ownership in a cross-functional team, helping ensure operational compliance tasks meet regulatory and contractual SLAs while tracking partner-visible incidents that could affect trust and assets under custody. Tech Stack is Python, FastAPI, AWS and Postgres. You will have a significant impact on the development of our core Platform & Systems, and therefore on architectural decisions and the business itself. Working alongside a cross-functional team of experts, you will help build the banking infrastructure that enables accurate settlements, reliable payments, resilient ledger and reconciliation systems, and trusted partner operations for the next 100 million retail investors in Europe. About you: You write well-structured, maintainable and well-tested code in at least one modern programming language, such as Python , Go, Java, Ruby, JavaScript or TypeScript. We’re technology agnostic, so Python experience isn’t required, but you should be excited to learn it. You have experience in designing and implementing highly scalable architecture and reliable REST APIs and bring the desire to make them world-class. You’ve gained good experience with software in a cloud environment (AWS, GCP, Azure) and the architectural patterns for this environment. You have a good understanding of any of these document-based or relational database technology such as MySQL/ PostgreSQL . You know how to write high-quality code that is understandable, maintainable and well tested, and can guide other engineers to do the same via code reviews. You have a track record of designing, building and operating reliable and scalable backend systems as part of a cross-functional team. You will be successful in this role if: Growing investment opportunities excites you. We operate in a highly regulated environment and therefore having worked prior in a Fintech or financial Service provider would give you a head start, but is not a must. You see yourself as a product engineer. That means, you are excited by solving customer problems and strive to become an expert in the domain area you are working in. You enjoy modifying and scaling existing systems. This means high involvement in the product development process itself while advocating for the best engineering practices. It also means that you enjoy taking technical decisions. You are ready and willing to take ownership of problems and act on them decisively with no supervision. You always thrive for high quality outcomes through focus, determination and attention to detail. You are a team player. Working together as a team, sharing knowledge & providing mentorship comes naturally to you.

Don't apply unprepared

We research who's interviewing you, tailor your CV and rehearse you live — first one free.