Senior Fullstack Software Engineer (TypeScript)

TL;DR

Senior Fullstack Software Engineer (TypeScript): Building customer-facing data intelligence applications for hospitals, from database query contracts and API layers to interactive visualization interfaces, with an accent on analytical data access, performance, and product-focused UX. Focus on designing reusable application architecture, implementing LLM-mediated workflows, and translating complex healthcare methodology into intuitive, high-performance products.

Location: Hybrid work in Hamburg or Berlin, Germany; flex-time is available. Work from abroad is permitted for up to 30 calendar days per year.

Company

hirify.global is a global business data platform providing reliable data, analytics products, and data intelligence solutions.

What you will do

• Architect, build, and maintain data intelligence applications spanning database query contracts, APIs, and interactive user interfaces.
• Own the shared application API layer by composing platform services and published data models into stable contracts.
• Design caching, materialization, pagination, and streaming strategies for low-latency analytics over cloud data warehouses.
• Build advanced hospital benchmarking and peer-comparison visualizations using reusable patterns and appropriate rendering technologies.
• Implement LLM-driven interfaces with retrieval workflows, tool integration, structured outputs, streaming, and latency and cost evaluation.
• Set engineering standards, improve testing discipline, shape architecture, and mentor engineers.

Requirements

• 5+ years of full-stack software engineering experience building data-dense web applications, interactive visualizations, and customer-facing products.
• Deep production experience with TypeScript across React or Next.js on the client and Node.js with Fastify, Express, or NestJS on the server.
• Experience creating custom interactive visualizations with D3.js and tools such as Visx, ECharts, or Vega-Lite, using SVG, Canvas, or WebGL where appropriate.
• Strong analytical SQL skills, including window functions, CTEs, and multi-level aggregations, plus experience with materialization and caching over columnar cloud warehouses.
• Expertise in client-side caching, request coalescing, streaming, table virtualization, and reusable API, component, or design-system abstractions.
• Fluent English is required; German is a plus. A bachelor's or master's degree in computer science, software engineering, HCI, or a related technical field is expected.

Nice to have

• Production experience integrating LLMs through retrieval or RAG, tool calls, streaming, and evaluation metrics.
• Experience with enterprise authorization and strict multi-tenant data segregation.
• Experience operating AWS microservices with observability, logging, CI/CD, and performance monitoring.
• Healthcare, hospital benchmarking, healthcare KPI, or medical data workflow knowledge.

Culture & Benefits

• Hybrid work with flex-time and modern offices in attractive locations.
• International team and social events.
• Subsidized urban mobility plus fitness and wellness options.
• Career and training opportunities.
• Mental health support through OpenUp.
• Free access to Langdock and its functionality.