> Markdown version of [/jobs/ext/1307882-full-stack-software-engineer-ai-neobank-app](https://www.wearedevelopers.com/jobs/ext/1307882-full-stack-software-engineer-ai-neobank-app). Every page supports `.md` or `Accept: text/markdown`. Links point to the HTML versions so they work for humans too. Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md).

---

# Full Stack Software Engineer - AI Neobank App

- **Company:** Bjak
- **Location:** Madrid, Spain
- **Contract:** Permanent contract
- **Skills:** Admin Tools, Application Programming Interfaces (APIs), Artificial Intelligence, Databases, Software Debugging, Software Engineering, Data Streaming, Web Application Frameworks, Backend, Build Tools, Operational Systems, Front End Software Development, Marketplace, Web Api
- **Published:** July 17, 2026
- **Apply:** https://www.adzuna.es/contact-us.html

## About the Role

+ 3+ years of full stack software engineering experience.
 + Strong frontend and backend fundamentals.
 + Experience with modern web frameworks, APIs, databases and production systems.
 + Able to build useful products quickly without needing perfect specs.
 + Good product sense, UX awareness and attention to detail.
 + Comfortable debugging across the stack.
 + Experience in fintech, insurtech, marketplace, consumer apps or high-volume platforms is a strong advantage., English is our main working language across global teams. Strong English communication is required.

## Description

We are looking for full stack engineers to build fast across BJAK's AI Neobank app.
This role is for product-minded engineers who can move across frontend, backend, internal tools and customer journeys to turn ideas into working products quickly.

What You'll Own

 + Build customer-facing and internal product features end to end.
 + Develop web flows, backend APIs, admin tools, dashboards and operational systems.
 + Support products across insurance, payments, savings, investing, travel and financial services.
 + Work with product, design, mobile and operations teams to launch fast.
 + Integrate APIs, handle data flows and improve production reliability.
 + Use analytics, feedback and production issues to improve features after launch.
 + Help build tools that reduce manual work and improve speed across the business.


## Related Videos

- [Inside Bitpanda's Tech Stack: Scaling a European Fintech Leader - Markus Dorner](https://www.wearedevelopers.com/videos/1979-inside-bitpanda-s-tech-stack-scaling-a-european-fintech-leader-markus-dorner)
- [Developing the Backend with Stefan Lingler, CTO at Shpock](https://www.wearedevelopers.com/videos/100360-developing-the-backend-with-stefan-lingler-cto-at-shpock)
- [Web APIs you might not know about](https://www.wearedevelopers.com/videos/281-web-apis-you-might-not-know-about)
- [Kubernetes and Microservices with Multi-Model Databases](https://www.wearedevelopers.com/videos/382-kubernetes-and-microservices-with-multi-model-databases)
- [Meet Your New BFF: Backend to Frontend without the Duct Tape](https://www.wearedevelopers.com/videos/682-meet-your-new-bff-backend-to-frontend-without-the-duct-tape)
- [Pioneering AI Assistants in Banking](https://www.wearedevelopers.com/videos/1627-pioneering-ai-assistants-in-banking)

## Related Articles

- [Top-Paying Tech Jobs (with Salaries)](https://www.wearedevelopers.com/magazine/372-top-paying-tech-jobs-with-salaries)
- [Navigating the AI Shift](https://www.wearedevelopers.com/magazine/629-navigating-the-ai-shift)
- [The 12 Best Jobs for Software Engineers](https://www.wearedevelopers.com/magazine/401-the-12-best-jobs-for-software-engineers)
- [Where To Find Software Engineering Jobs](https://www.wearedevelopers.com/magazine/396-where-to-find-software-engineering-jobs)
- [The Most Popular IT Jobs on the Market](https://www.wearedevelopers.com/magazine/376-the-most-popular-it-jobs-on-the-market)
- [7 Most Popular Web Developer Jobs in Europe](https://www.wearedevelopers.com/magazine/163-7-most-popular-web-developer-jobs-in-europe)