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 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 Planning!

We are looking for…

a talented Cybersecurity Engineer with 5+ years of experience as a Security Engineer (or in a similar role) to join our Security team and help protect our application, infrastructure, and internal systems while actively supporting the compliance needs of our product and customers. In this role, you will safeguard Abacum against security threats, mitigate risks, and ensure we meet regulatory and industry standards. Through strong security engineering, automation, and collaboration across teams, you will help build and maintain a secure environment that earns and keeps the trust of our stakeholders.

Being a Cybersecurity Engineer at Abacum means

Owning security processes, designing effective controls, and driving pragmatic security improvements.
Working with engineering and IT to handle security incidents, address vulnerabilities and misconfigurations, harden systems, and incorporate security practices and automation into our SDLC.
Implementing and operating security controls across our stack, including firewalls, IDS/IPS, antivirus, authentication systems, WAFs, log management, and other core security tooling.
Supporting sales by responding to security questionnaires, maintaining a reusable security FAQ, and joining customer or prospect calls to address security-related questions.
Strengthening our compliance posture by partnering with auditors and internal stakeholders, automating evidence collection, and ensuring alignment with regulatory and industry standards.
Applying cloud hardening practices and conducting internal penetration testing to proactively uncover weaknesses across our environments and products.
Evaluating, selecting, and managing relationships with security vendors to ensure our tooling meets our evolving needs.

Our ideal candidate has:

A strong sense of ownership and a pragmatic, curiosity-driven approach to security. They are comfortable working cross-functionally with engineering, IT, and go-to-market teams and are motivated to help design, build, and operate secure systems in a fast-growing environment.
Hands-on experience supporting or leading security audits and compliance programs (e.g., ISO 27001, SOC 2, GDPR) and translating requirements into practical controls.
Practical experience with AWS security services, secure cloud architecture, and cloud risk management.

Benefits

- Competitive compensation including equity package

- Competitive vacation policy

- Access to Meditopia

- Hybrid working model and flexible working hours

- Personal development including language courses

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.

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Cybersecurity Engineer