Senior Back End Engineer

Senior Back End Engineer at AbacumJoin to apply for the Senior Back End Engineer role at Abacum .About AbacumAbacum 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 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 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 PlanningWe are looking forTalented 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, and is committed to shaping our technical design and engineering culture.ResponsibilitiesCollaborate 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 modelling 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, 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 to constantly improve our product.Scale our complex data and calculations platform for a fast‑growing number, size and complexity of clients.Qualifications & SkillsStackPythonPostgreSQLKubernetesMethodologyAgile/ScrumData drivenRequired skillsProduct mindsetTeam playerComplex data structuresDeep understanding of performance when building and operating through observabilityBonus points if you haveExperience with Pandas, Polars or similar DataFrames technologiesExperience building ML and AI solutionsExperience scaling complex data platformsBenefitsCompetitive vacation policyCobee card for discounts on food and transportPrivate health insurance and access to Meditopia (wellbeing platform)Spanish and English language courseRelocation support if needed and desiredOur valuesCustomer 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 transparency 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.Seniority levelMid‑Senior levelEmployment typeFull‑timeJob functionEngineering and Information TechnologyIndustriesSoftware Development#J-18808-Ljbffr