Jobs at Integral Services GmbH

Own full-cycle recruiting for tax, payroll, AI engineering, product, sales, and other roles. Responsibilities include sourcing, inbound application management, hiring-manager partnership, interview and debrief processes, offer closing, recruiting metrics, ATS administration, and process improvement. The role is the first Talent team hire and will establish structured hiring practices while maintaining a fast candidate experience.

Build and lead the FP&A function, owning integrated planning, forecasting, budgeting, KPI reporting, liquidity and ARR steering. Support fundraising, investor and board reporting, develop cohort and go-to-market economics, and partner with commercial leaders on pricing and investment decisions. The role also oversees accounts payable and receivable, month-end and year-end close, and scalable finance automation using AI and agentic tools.

Lead hands-on full-stack software engineering across infrastructure, backend, integrations, AI, and frontend systems. Own architectural decisions from design through deployment, document technical decisions, and collaborate with the founding engineering team on accounting, payroll, and tax products. The role requires autonomous execution, strong prioritization, broad technical expertise, and comfort working onsite in Berlin within a small, senior team.

Build and own user-facing payroll, tax, and accounting features end-to-end. Collaborate with Product and Design, improve platform reliability, performance, and security, and raise engineering quality through reviews, testing, pairing, and documentation. Instrument features, measure customer impact, simplify complex systems, and balance rapid delivery with long-term architecture. The role requires strong software engineering experience, product-building ownership, and proficiency in at least two programming languages.

Design, build, and maintain reliable, scalable, and secure cloud infrastructure. Own CI/CD pipelines, infrastructure as code, observability, incident response, and security practices. Collaborate with product and AI engineers to enable frequent, safe deployments; lead post-mortems, reduce system complexity, and balance immediate delivery with long-term architectural improvements.

Integral invites proactive, analytical individuals to submit an open application for roles that may not yet be defined. Ideal candidates have experience in fast-paced environments such as strategy, consulting, or startups, demonstrate initiative and adaptability, and can independently solve complex problems amid changing priorities. The company offers high autonomy, direct founder access, AI-enabled tools, and startup benefits in its Berlin office.

Build and deploy AI agents and LLM-based systems that automate accounting, payroll, and tax workflows. Integrate AI with APIs and existing systems, while optimizing performance, cost, reliability, and quality. The role requires strong software engineering and Python skills, hands-on experience with LLM APIs, prompt engineering, structured outputs, and agent frameworks. You will work autonomously across multiple projects in a hybrid Berlin startup environment.