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Urgent! Senior Front End Engineer Job Opening In Barcelona – Now Hiring Starhold

Senior Front End Engineer



Job description

Abacum is the leading Business Planning solution for finance teams to drive performance.

By automating reporting, enabling collaboration, and simplifying planning and forecasting, we help finance teams shift from number crunching to driving strategic decisions.

Founded in 2020 by two former CFOs, we’ve grown into a global team of 100+ people across 30+ nationalities.

Headquartered in New York, with offices in London and Barcelona, we’re trusted by industry leaders such as Dish Networks, Strava, BetterUp, Kajabi, JG Wentworth, Abridge, Cortex, and hundreds more.

We have raised over $100m, closing in June 2025 our $60M Series B, led by Scale Venture Partners, with strong participation from Cathay Innovation, Y Combinator, Atomico, Creandum, and angel investors from Adyen, Zapier, and Twitch.

Our mission is ambitious, and we can’t do it alone — join Abacum as we build the future of Business Planning!

We are looking for talented Senior Frontend Engineers with boundless curiosity to solve complex, market-defying challenges—like building a multidimensional real-time calculations engine!

Join us early in our journey to create groundbreaking technology that transforms how finance teams work and collaborate.

This is a unique opportunity to code in an extremely agile environment, make a direct long-term impact on our product and users, and help shape our technical design and engineering culture.

If you take ownership of your work, learn quickly, and are ready to be part of something extraordinary, we want to hear from you!

Being a Software Engineer at Abacum means...

  • Collaborate closely with engineers, product designers, and product teams to perform experiments and test new ideas
  • Build performant, design-centric, reusable, and usable interfaces that solve complex needs, including customization options, complex data visualizations (graphs, charts), and delightful components that enhance the platform experience
  • Drive user-defined data modeling and performance, providing customization possibilities through reusable building blocks such as models, variables, formulas, etc.

  • Take operational responsibility for the components you develop
  • Work in an environment that supports your growth by providing challenging tasks and projects, along with the freedom to acquire new skills during hack time
  • Collaborate with product and operations teams to incorporate customer feedback and continuously improve our product

You can easily check off...

Stack

  • TypeScript
  • React (or strong experience with other UI frameworks)
  • SCSS/CSS-in-JS
  • Jest/Playwright

Methodology

  • Agile/Scrum

Skills

  • Ability to solve complex product problems with optimized data structures and best practices
  • Team player
  • Deep understanding of performance, observability, and operational excellence

Bonus Points if you have...

  • Experience with backend programming languages (Python, NodeJS, Go, or Ruby) and RESTful API creation
  • Knowledge of database systems (PostgreSQL, MySQL)
  • Experience with Pandas, Polars, or similar DataFrames technologies

Benefits include competitive compensation, generous equity, vacation policy, discounts via Cobee card, private health insurance, wellbeing platform access, language courses, and relocation support if needed.

Our values

  • Customer Obsession: Creating value for customers is our core purpose.

  • Audacious Ambition: Dream big, embrace discomfort, take risks, learn from mistakes.

  • Good People: Celebrate diversity, self-reflect, and have fun every day.

  • Tough Love: Care deeply, provide honest feedback, and foster transparency.

Qualified applicants will be considered regardless of race, color, religion, sex, sexual orientation, gender identity, national origin, age, marital status, veteran status, or disability.

Tell us a bit more about yourself

Please attach the latest copy of your CV

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How did you hear about this job?

  • Company website
  • Company employee
  • LinkedIn
  • Other

If a current employee at Abacum referred you, please list his/her name

Do you require work authorization to work in Spain?

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Required Skill Profession

Informática Y Tecnología



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