Senior Backend Js Developer (AI)

Формат работы: удаленно

Тип удаленки: Европа

Тип работы: full-time

Грейд: senior

About the Company

Headshot Recruitment agency is looking for Senior backend JS engineer. Our client with its HQ in Germany was founded in 2024. The company provides an AI-powered platform designed to automate public tender acquisition and qualification for companies. It assists in optimizing tender bids, reducing errors, and increasing tender wins. The solution is based on large-scale data aggregation, document workflow automation, and AI-powered search, helping companies find and win tenders faster.

About the role

You will be working in a small team, with no dedicated management layer. The project is data-heavy and, in terms of complexity, closer to: search engines; large document storage systems; infrastructure at the level of “mail/directory/index”.

The key value of the engineer is correct and scalable data handling, not just “writing code.”

Your future tasks

• Design and scale high-performance features using Node.js, TypeScript, and NestJS.
• Optimize complex PostgreSQL schemas and queries for large datasets.
• Design microservices for document processing, indexing, and search.
• Integrate LLM-powered features (OpenAI/Claude) for automated tender analysis
• Take full ownership of product features with minimal guidance in a flat structure.

Tech stack

Languages: TypeScript, JavaScript, Python Frameworks: FastAPI, Node.js, React, Next.js, Drizzle, Mantine UI Databases: PostgreSQL (PostGIS, BM25, semantic search) Queues: Redis, BullMQ

We expect from you

• Strong backend engineering experience (5+ years) with Node.js/TypeScript.
• Practical experience with REST API.
• Deep understanding of PostgreSQL, including: 
  • data schema design
  • indexing
  • sharding
  • working with extensions (PostGIS, etc.)
  • understanding what actually happens inside the database, not only at the ORM level.
• Product development experience, such as BigTech companies or product startups with real production load.
• English language at B2+ level (internal communications are in English).
• Your time zone and location (GMT-GMT+5, except Russia and Belarus).

Amazing, if you have experience with

• Fine-tuning PostgreSQL, Sharding, Replication, and High Availability.
• Document processing pipelines at scale.
• Semantic search, ranking and fine-tuning complex queries.
• Cloud architecture and infrastructure.
• Machine Learning, Natural Language Processing, and fine-tuning LLM.

Company offers

• Remote asynchronous work with time overlap: 11:00-17:00 CET for calls.
• Collaboration type: Contractor (via Deel)
• Full-time job.
• No hour tracking.
• Potential equity/options in the future.
• Flexibility and freedom in the engineering approach.
• No bureaucracy, real impact on architecture and infrastructure.