Senior Software Engineer

Flanks, Inc.; Vilanova y Geltrú; Híbrido; EUR 50.000 - 60.000; Jornada completa

Descripción de la vacante

A fintech startup in Spain seeks a senior Engineer with at least 7 years of experience. The role involves building user interfaces, scaling data systems, and mentoring the tech team. Ideal candidates are fluent in English and Spanish, and have knowledge of wealth management. The position offers a yearly salary of €50K–€60K and flexible working conditions.

Servicios

Flexible working hours

Health insurance

Training budget

Paid day off on your birthday

Friday happy hours

Team-building events

Formación

• At least 7 years in an Engineer Software role.
• Experience collaborating using standard tooling.
• Ability to work with both legacy and greenfield code.
• Some knowledge in investments or wealth management is a plus.
• Must live in Spain, commuting once a month to work.

Responsabilidades

• Build seamless user interfaces for credential storage.
• Handle sensitive financial data with compliance in mind.
• Scale ingestion system to fetch data faster.
• Mentor and grow the tech team.

Conocimientos

Front-end development (SPAs with JS/TypeScript)

Data modelling & DB performance

Kubernetes operations

Algorithmic & statistical skills

ETL workloads

Fluent in English

Fluent in Spanish

Herramientas

Git

GitHub

MongoDB

PostgreSQL

Elasticsearch

Python

JS/TypeScript

Vue

Nuxt

Descripción del empleo

A little bit about Flanks 🚀

Flanks is shaking up the wealth management industry by making it simpler and more efficient for financial institutions. Our SaaS platform helps banks, family offices, and wealth managers get a full picture of their clients' financial assets—all in one place.

Founded in 2019 and based in Barcelona, we’ve built a team of wealth management and tech professionals with a shared goal: to change how wealth management is done. We’re backed by €9.8 million in investment and are growing fast.

• People First – our team comes first. We want every Flanker to feel at home, engaged, and part of something bigger.
• Keep Growing – as the company grows, so should you. We’re about personal and professional development.
• Think Twice, Act Once – thoughtful decisions with impact on both our team and our clients.

If you’re looking for a place to grow and make an impact in a fast-paced fintech startup, this could be the right fit.

Tech Team

We power the ingestion, processing, and delivery of data for our customers. As we scale, new challenges arise—here’s where you come in:

• Build seamless user interfaces for secure credential storage (UI/UX is key!).
• Handle sensitive financial data with performance, compliance, and traceability in mind.
• Scale our ingestion system to fetch more data, faster.
• Mentor and grow the team, ensuring alignment and consistency as we expand.

About the role 💼

This is a senior role and we expect experience and strong opinions. You’ll have a voice, autonomy, and room to grow, though you won’t be the main driver of most projects.

We’re not looking for a one-person Tech Team—we want specialists with overlapping skills who complement each other. Whether you’re a broad generalist or a deep specialist, we’d love to hear from you if you excel in:

• Front-end (SPAs with JS/TypeScript)
• Data modelling & DB performance
• Kubernetes operations
• Algorithmic & statistical skills
• ETL workloads

Your daily focus? Coding, collaborating, and delivering impactful solutions—not just merging code but owning it beyond deployment. We don’t follow strict Agile/Waterfall; we do what matters most, when it matters most.

Our tech stack

• Python or JS/Typescript on the back-end, using async frameworks and tooling for most parts.
• Vue and Nuxt in the front-ends.
• Running on GKE
• Powered by MongoDB, PostgreSQL and Elasticsearch
• Github, Github Actions, Redis, RabbitMQ and other usual tools.

Things we'd love to see on you

• You are a nice person: We don’t tolerate bigotry or toxic behavior—just good vibes.
• At least 7 years in an Engineer Software role.
• Autonomous coder: You don’t need your work double-checked—you’re on top of it.
• Experience collaborating with others using standard tooling (git, GitHub PRs, etc).
• You are a good communicator who can express problems, solutions and trade-offs.
• You know how to read and understand job offers; you can triage what’s important.
• Focused: Prioritize what matters most.
• You can work with both legacy and greenfield code.
• You take ownership of problems.
• Wealth knowledge: Some expertise in investments, currencies, crypto, or wealth management is a plus.
• You live in Spain and are close enough to Barcelona to commute to the office once a month by your own means. Living in Spain is a mandatory requirement.
• You’re fluent in English and Spanish.
• Experience matters: This is not an entry-level role.
• Tech savvy: Familiar with our tech stack—or similar ones.

You don’t have to check every box, but the more you fit this, the more excited we’ll be to hear from you!

What we offer 🎁

We offer fair compensation (from 50K to 60K € per year for this role). We’re not at the very top of the market, but we plan to adjust compensation as you grow with the company. You will not be left behind. This is a great time to join as we expect significant growth and changes this year.

This is a full-time, permanent contract. A non-exhaustive list of perks includes:

• A full-time, permanent contract. 📃
• A cool office between Sants Estació and Plaça Espanya with views of Barcelona.
• Flexible working hours and hybrid options.
• Paid day off on your birthday.
• Weekly fruit, coffee, and tea.
• Friday happy hours after all-hands meetings (optional).
• Team-building events to bond and have fun.
• Health insurance and flexible compensation with Alan.
• A digital canteen subsidised at 50%.
• A yearly training budget to keep growing.

Note that for this role we can’t offer relocation packages or working visas.

The hiring process ⚙️

1. Send us your CV, cover letter, etc. 📧
2. Chat with Head of People, Mireia Barón.
3. Meeting with the Tech Team.
4. Technical Test – take-home test to assess your skills.
5. Final Interview – discuss your technical approach with the CTO, Diego Kuperman.
6. Any extra meetings to iron out questions.
7. We send you an offer.

We aim to keep things moving quickly—ideally wrap things up in one to four weeks.

If this sounds like a good fit, we’d love to hear from you. Please send your CV and/or cover letter.

At Flanks, we believe in fostering diversity and inclusion. We’re proud to be an equal opportunity employer, and we welcome all applications regardless of race, religion, gender, age, or disability status.