Software Engineer (onboarding/integration) - Python/...

A fast-growing (Scale-up) European fintech is delivering a modular, API-first SaaS platform that enables banks to digitize their end-to-end mortgage origination workflows.

With offices in Antwerp, Zurich, and Vienna, the company’s platform integrates with core banking systems, CRMs, and third-party data providers to automate income verification, credit risk assessment, and document processing. Built for scalability, their event-driven, microservice-based architecture supports continuous deployment and rapid iteration. With over €1B in mortgage volume processed and 13+ financial institutions onboard, the company is scaling rapidly — backed by Series A funding and currently ran A+ round to further drive expansion into new markets and enhance its digital lending infrastructure.

We’re looking for a Software Engineer to join the onboarding and integration team. This is a customer/client facing engineering role — ideal for a backend or fullstack developer who enjoys customer contact and solving complex problems and engineer creative solutions for optimal customer integration/onboarding in a high-impact environment.

What You’ll Tackle

• Collaborate with onboarding leads to implement customer-specific integrations/alterations

• Build on top of existing frameworks to deliver tailored customer solutions that can scale

• Handle both small and large integration/onboarding projects across a wide range of clients

• Take ownership of development tasks with evolving or limited requirements

• Work with complex business logic and third-party integrations via APIs

• Communicate directly with customers and internal teams to refine technical solutions

What You Bring

• Solid backend or fullstack experience

• Strong Python web skills — ideally Django (Flask is also fine)

• Experience with REST APIs

• Some frontend experience is a plus (Angular used, but other frameworks welcome)

• Able to work independently

• Great communicator with a collaborative mindset

Location & Flexibility

• Based near Antwerp or Vienna

• Hybrid: ideally once per week in the office (every two weeks is also fine)

What’s on Offer

• Competitive salary depending on experience

• Employee stock options

• 25 vacation days + 1 Mental Health Leave day

• Diverse team with 12+ nationalities

• Supportive, inclusive, and growth-oriented culture

• Learning & Development budget and time allocation

• Structured onboarding with a dedicated buddy mentor

• Direct impact on a fast-evolving product

• Travel budget for in-person meetups in Antwerp, Zurich, or Vienna

• Annual company offsite (G2G) at a fun international location

• Extra legal benefits depending on location

• Help with local administration

• Health insurance & pension

• Flexible hours and remote-first setup

• All necessary equipment provided

The company is an equal opportunity employer and welcomes applicants from all backgrounds. Every application is considered without regard to race, religion, gender, sexual orientation, disability, or other protected characteristics.