Senior Back End Engineer

Abacum; España; Remote; EUR 60,000 - 90,000; Full time

Benefits offered by this job

Equity package

Vacation policy

Medical Insurance

L&D budget

Meditopia access

Language courses

Job summary

Abacum, the leading Business Planning solution, is hiring a Software Engineer to join our Barcelona team. You will work on a multi-disciplinary squad building a real-time calculations engine and data visualisations, collaborating with designers, product, and other engineers.

We value ownership, fast learning, and a hands-on approach to shaping our technical design and engineering culture. You'll contribute to scalable data models, interfaces, and performance, with Agile/Scrum practices and a

Responsibilities

• Collaborate with engineers, product designers, and product to perform experiments and test new ideas.
• Build performant, reusable interfaces with customization and complex data visualisations.
• Drive user defined data modelling and performance with reusable building blocks.
• Take operational responsibility for the components you write.
• Grow in hack time and acquire new skills.
• Incorporate customer feedback with product and operations to improve the product.
• Scale our data and calculations platform for more clients.

Skills

Product mindset

Team player

Complex data structures

Performance & observability

Tools

Python

PostgreSQL

Kubernetes

Job description

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...

… talented engineers who possess infinite curiosity to solve complex problems not existing in the market (multi dimensional real time calculations engine), are excited to become part of our early story and help create groundbreaking technology that truly improves how finance teams work and collaborate. Creating an amazing opportunity to code in an extremely agile environment, with a direct long-term impact on our product and users. Our ideal candidate has a strong sense of ownership in their work, is willing to learn quickly, committed to shaping our technical design and engineering culture.

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
• Scale our complex data and calculations platform for a fast growing number, size and complexity of clients

Stack

• Python
• PostgreSQL
• Kubernetes

Methodology

• Agile/Scrum
• Data driven

Skills

• Product mindset
• Team player
• Complex data structures
• Deep understanding on performance when building and operating through observability

Bonus Points if you have...

• Experience with Pandas, Polars or similar DataFrames technologies
• Experience building ML and AI solutions
• Experience scaling complex data platforms

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.