Fullstack Developer

Wroclaw, Polen Vollzeit Berufserfahren Remote

Ventum IQ is needs support in developing new versions of TenderIQ, an AI-powered multi-tenant SaaS platform for tender management in public procurement and other AI based solutions. We combine semantic search via a vector database, AI-based tender analysis, and an automated bid writer into an end-to-end platform. 200+ API endpoints, 15+ frontend pages, 12+ AI functions, multi-tenant capable with live updates via Server-Sent Events.

Your tasks

• From tickets, user stories, or sketches, you independently build end-to-end features (backend endpoint, data model, frontend component, state, tests)

• Frontend in React 19 with TypeScript, Zustand for client state and TanStack Query v5 for server state

• Backend in FastAPI with Pydantic validation, SQLAlchemy models, and Alembic migrations

• Persistence with PostgreSQL, MongoDB, Redis, and Qdrant

  AI pipelines: prompts, extraction, embeddings, reranking logic. RAG search via Qdrant

• Server-Sent Events: 14 event types keep pipelines, dashboards, and detail views in sync

• Code reviews, tests on critical paths, bug fixes that address root causes rather than symptoms

• Multi-tenancy always in mind: every query, every endpoint, every permission must be tenant-clean

You take requirements from product management and stakeholder conversations and implement them independently across the entire stack — from backend endpoint to persistence layer to React component. You understand that good implementation is more than “works locally”: it is multi-tenant safe, observability-ready, tested, and clearly documented. You won’t just execute requirements — you’ll also challenge and question them.

Your profile

• 2–5 years of professional experience as a fullstack dev, frontend dev with backend share, or backend dev with frontend share

• Solid React skills with TypeScript (React 18+ required)

• Python in web backend: FastAPI, Flask, or Django with understanding of asyncio, Pydantic, ORMs, migrations

• SQL and relational thinking: joins, indexes, transactions — readable/writable/debuggable;PostgreSQL is a plus

• Clean Git discipline (branches, PRs, rebases, merge conflicts)

• Ability to work independently, proactive communication

• Fluent German, technically confident English

• MongoDB or other document DBs (aggregation pipelines)

• Vector databases (Qdrant, Pinecone, Weaviate) and concepts (embeddings, ANN search)

• LLM integration: prompt engineering, output parsing, token management, streaming, function calling

• Multi-tenant SaaS experience

• DevOps affinity (Docker, container logs, simple CI pipelines)

• Already familiar with Tailwind, Zustand, TanStack Query

• B2B SaaS environment: RBAC, audit trails, GDPR-compliant data models

• Frontend: React 19, TypeScript, Vite, Tailwind CSS v4, Zustand, TanStack Query v5

• Backend: FastAPI, Python 3.12+, SQLAlchemy, Pydantic, Alembic

• Databases: PostgreSQL, MongoDB, Redis, Qdrant (vector DB)

• AI: OpenAI GPT-4, embeddings, RAG pipelines

• Realtime: Server-Sent Events via Redis Pub/Sub

• Infrastructure: Docker, Docker Compose

What we offer

• Fully remote position within Poland
• Work in an international team
• Modern equipment and flexible working environment
• Regular team meet-ups once per month
• Onboarding in our Vienna headquarters (up to 4 weeks) to get to know the team and projects
• Edenred meal vouchers
• Sports card
• Private health insurance
• Additional company holidays between December 24 and January 1
• Attractive salary based on experience and qualifications
• Opportunities for professional and career development

Auf diese Position bewerben

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