Senior Backend Developer

(Senior) Backend Developer (f/m/x)

Join to apply for the (Senior) Backend Developer (f/m/x) role at Pactos.

Pactos is a fast-growing B2B SaaS startup reinventing how companies manage their external workforce. Our AI‑powered platform digitizes the entire end‑to‑end process, enabling organizations to manage external staff and staffing providers in a compliant, transparent, and highly efficient way.

We are backed by renowned investors (HTGF, Step Stone CEO, Peri Owner) and already trusted by best‑in‑class customers. Are you a versatile developer ready to build something extraordinary? Join us as our software engineer who wants to shape a scalable product foundation, write reliable code, and grow in a high‑ownership, high‑speed startup environment.

• Build scalable systems – Develop and expand our backend architecture with a focus on performance, reliability, and security.
• Design APIs & data models – Create well‑structured, documented APIs and robust data models for our frontend and integration teams.
• Automate & integrate – Build smart integrations with external HR, finance, and compliance systems, and automate key workflows.
• Think in architecture, not just tickets – Establish best practices and make technical decisions that balance scalability, maintainability, and product speed.
• Cross‑Functional Collaboration – Work hands‑on with design, product, and engineering teams, as well as with the founders, to shape our roadmap, tools, and engineering culture.

• 3+ years of professional experience in full‑stack / backend development, ideally in SaaS or B2B environments.
• Excellent skills in Type Script/Node.js and Postgre
  
  SQL.
• Experience with cloud infrastructure (e.g., Google Cloud).
• Strong passion for clean code, testing, security, and performance.
• Structured and proactive working style with high ownership.
• Curious about product decisions – you care about user outcomes, not just code.
• Fluent in English (German is a plus).

• Attractive comp + ESOP:
  Competitive salary plus meaningful equity.
• Ownership from day one:
  You build core features that shape the product.
• Speed:
  We make decisions in hours, not weeks. No politics. No BS.
• Growth & responsibility:
  Pragmatic, product‑obsessed, and committed to winning – an opportunity to grow into a lead role.
• Modern stack, flexible setup: hybrid either in central Munich or Berlin, outcome‑driven, and lots of fun (e.g., Oktoberfest).

No long cover letter needed – just send us your Git Hub, portfolio, or a few projects you’re proud of. Let’s build something bold!