Full Stack Engineer (f / m / d) Berlin

At Tilla, were redefining how maritime businesses manage their workforce. Our B2B SaaS platform streamlines crew management, travel, and compliance for shipping companies worldwide. We operate in a data-heavy, performance-critical environment where accuracy, reliability and usability are at the core of what we build. This role is perfect for someone who thrives in a fast-moving, high-ownership environment, values autonomy, and enjoys working on user-facing products that directly impact customers. Our Tech Stack

Frontend : React, Next.js, TypeScript, TailwindCSS, ShadCN

Testing : Jest, Playwright

Your Mission

Were looking for a Fullstack Engineer (Backend-focus) to shape the technical foundation of our platform, building key business integrations and working with industry-specific APIs, while ensuring performance, scalability, and reliability as we grow. Youll work closely with external-facing teams and senior engineering leadership through tight feedback loops and an iterative process.

This is an opportunity to contribute to important initiatives with direct impact on revenue, drive technical decisions, and grow into a backend lead role as the company scales.

Own & Ship Features End-to-End

Drive product initiatives from high-level decisions to implementation, testing, and deployment.

Integrations & APIs

Design, extend, and maintain integrations with third-party systems including Amadeus APIs and other external providers ensuring reliability, scalability, and secure data flows. Contribute to key product areas with direct revenue impact.

Backend Architecture, Scalability, Performance & Reliability

Collaborate on defining the technical direction for our backend services, focusing on performance, maintainability, and scalability as we expand to new markets and larger data volumes. Build systems that are resilient, performant, and capable of handling large-scale, real-time data. Optimize for throughput, fault-tolerance, and efficient resource usage.

Data-Heavy Workflows

Design and implement data pipelines, transformations, and APIs that power analytics, dashboards, and customer-facing tools. Consider performance optimizations for large datasets, real-time event streams, and data integrity.

Coordinate Across Teams

Work closely with backend, data, and customer experience teams to define API contracts, manage large data payloads, and ensure optimal data representation and performance. Collaborate to surface insights, support customer needs, and deliver seamless product experiences.

Agile & Feedback Loops

Work in a tight build measure learning cycle, continuously improving based on user feedback, analytics, and usability testing.

Your Profile

• 1-3 years of experience in backend or fullstack development, preferably in a B2B SaaS or data-heavy application.
• Experience with integrations and third-party APIs (Amadeus, Sabre or similar travel / enterprise APIs a plus).
• Strong skills in backend technologies (e.g., Node.js, Python), ETL pipelines and databases (SQL).
• Comfort with distributed systems, real-time data, and performance optimization.
• Startup energy you thrive in fast-moving environments, take ownership, and enjoy solving ambiguous problems.
• Growth mindset excited about growing into a technical lead role as the company scales.

Why Join Us?

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