Senior Front End Engineer
- Role
- Frontend
- Experience
- Senior
- Employment
- Full-time
- Company size
- Mid-size
Open to ES only. Set where you work from to check your eligibility.
No BS summary
Senior frontend engineer in Spain with TypeScript, React or another strong UI framework, Redux, SCSS/CSS-in-JS, and Jest/Playwright. Needs strong JavaScript/ES6 knowledge, product mindset, and performance-focused frontend experience.
Core skills
Required skills
Optional skills
About Abacum
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, we have offices in Toronto 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 the strong participation of Cathay Innovation, Y Combinator, Atomico, Creandum, and angel operators 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...
We’re looking for a talented Senior Frontend Engineer 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 in 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 to perform experiments and test new ideas
- Build performant, design-centric, reusable and usable interfaces that solve complex needs. Such as customisation possibilities for our users, complex data visualisations (graphs, charts, etc...), delightful components that provide the best platform experience
- Drive user defined data modeling and performance, providing the user with customization possibilities through reusable building blocks: models, variables, formulas, …
- Take operational responsibility for the components that you write
- Work in an environment that supports your individual growth by providing you with challenging tasks and projects to solve and the freedom to acquire new skills in hack time
- Work with product and our operations team to incorporate customer feedback in order to constantly improve our product
You can easily check off…
Stack
- TypeScript
- React (or strong experience in other UI frameworks)
- Redux
- SCSS/CSS-in-JS
- Jest/Playwright
Methodology
- Agile/Scrum
- Data driven
Skills
- Strong knowledge of JavaScript, asynchronous programming, closures, types, and ES6.
- Ability to solve complex product problems with optimized data structures and best practices
- Product mindset
- Team player
- Deep understanding on performance when building and operating through observability
Bonus Points if you have...
- Experience with backend programming languages (Python, NodeJS, GO or Ruby are preferred) and RESTful API creation
- Database systems knowledge (PostgreSQL and MySQL are preferred)
- Experience with Pandas, Polars or similar DataFrames technologies
Benefits
- Competitive compensation including equity package
- Competitive vacation policy
- Medical Insurance
- L&D budget
- Access to Meditopia (wellbeing platform)
- Language courses (English / Spanish)
Our Values
Customer Obsession: We share the understanding that Abacum's sole purpose is to create value for customers and relentlessly deploy all creativity and energy to that end.
Audacious Ambition: We dream big and embrace discomfort. We assume risks, make on-time mistakes and learn how to methodically accomplish our goals.
Good People: We are self-reflective and praise diversity of thought. We don't justify the end with the means and know where to draw the line. We have fun every day.
Tough Love: We truly care for everyone in the team and embrace honest feedback and radical candor as ways to genuinely help each other.
Qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender perception or identity, national origin, age, marital status, protected veteran status, or disability status.
What you'll do
- Collaborate closely with engineers, product designers, and product to perform experiments and test new ideas.
- Build performant, design-centric, reusable and usable interfaces that solve complex needs, including customization possibilities, complex data visualizations, and platform components.
- Drive user-defined data modeling and performance, providing customization possibilities through reusable building blocks such as models, variables, and formulas.
- Take operational responsibility for the components you write.
- Work on challenging tasks and projects while using hack time to acquire new skills.
- Work with product and operations teams to incorporate customer feedback and constantly improve the product.
What they require
- Senior Frontend Engineer.
- Strong knowledge of JavaScript, asynchronous programming, closures, types, and ES6.
- Ability to solve complex product problems with optimized data structures and best practices.
- Product mindset.
- Team player.
- Deep understanding of performance when building and operating through observability.
- Agile/Scrum methodology.
- Data-driven methodology.
- Take ownership in your work and learn quickly.
- Preferred: Experience with backend programming languages and RESTful API creation.
- Preferred: Database systems knowledge.
- Preferred: Experience with DataFrames technologies.
Benefits
- Competitive compensation including equity package.
- Competitive vacation policy.
- Medical Insurance.
- L&D budget.
- Access to Meditopia wellbeing platform.
- Language courses in English and Spanish.
Abacum is the leading Business Planning solution for finance teams to drive performance. By automating reporting, enabling collaboration, and simplifying planning and forecasting, it helps finance teams shift from number crunching to driving strategic decisions.