Ai Engineer

Overview
New Mission.
New Stack.
New Team.
Space Inch is on a new mission to redefine B2B experiences.
We are looking for AI experts to help us build the next generation of intelligent workflows.
The AI Engineer will own the end-to-end delivery of production-ready LLM services, turning complex data into fast, reliable, and grounded recommendations at scale.
This is a high-impact role where you will build and operate the core AI systems that power our platform with production-grade performance.We are expanding quickly and bringing on multiple teammates to contribute across several new projects built on this stack.
If you are a builder who loves AI and want to join our growing AI team, we'd love to have you with us.Our Mission, Vision, and Values: At Space Inch, we prioritize alignment with our clients and team, ensuring a deep understanding of their needs.
We are committed to delivering exceptional work while supporting the personal and professional growth of our team members.
Every team member has access to an executive coach as part of this commitment.About Working At Space Inch: Our team (about 80 people) is primarily based in Croatia, with members in South America, Serbia, and the US.
While focus is on working remotely, we do have an office in Zagreb for those who prefer a hybrid approach and are located nearby.
Occasional travel may be required, including our annual company retreats in Croatia.
We work on end-to-end projects with long-term vision.
We strongly support work/life balance for our team members.
ResponsibilitiesThe role includes designing, implementing, deploying, and maintaining production-ready LLM services and AI-powered workflows.
You will collaborate with cross-functional teams to deliver high-quality AI solutions at scale and ensure reliable performance and safe operation of AI systems.
RequirementsCore technology stack:
Languages & APIs: Python (FastAPI), TypeScript (Node/Nest BFF), REST/GraphQL, WebSocket/SSE
Python + FastAPI production experience (async, dependency injection, testing);
comfortable integratingwith TypeScript/Node;
built APIs with REST/GraphQL and at least one streaming pattern (SSE/WebSocket)
LLM & RAG: embedding stores (pgvector / OpenSearch / etc), chunking strategies, re-rank, hybrid search;
prompt tooling & templates;
guardrails
Observability & quality: structured logging, tracing, metrics;
experiment/eval tooling(e.G., Langfuse-style telemetry);
offline/online A/Bs
Data & pipelines: robust CSV/Sheets ingestion, schema validation, PII handling, backfills, scheduled jobs
Agentic experience: familiarity with MCP and agent frameworks, tool design, constrained execution, and safe planning
Can work effectively in CET timezone
Nice to have
LLM serving optimization (vLLM, TensorRT-LLM), quantization/LoRA know-how
Retrieval eval frameworks, cross-encoder rerankers, response grading
Experience with cost controls, token budgeting, and prompt compression
Serving & infra: Docker, Kubernetes, CI/CD;
model gateways (LiteLLM/vLLM) and caching;
object storage (S3-compatible);
message bus (Kafka or equivalent)
Security & privacy: tenant-aware access controls, secrets management, audit logs, privacy and safety red-teaming basics
Qualifications
4-6+ years software engineering (product environments), ideally with 2+ years hands-on experience in shipping LLM/GenAI to production
Proven track record owning services end-to-end (design, implementation, rollout, monitoring, and iteration)
Clear writing, pragmatic decision-making, and comfort collaborating with Mobile, Backend, and Ops (Dev/LLM)
Experience with technologies as described above
Qualities for success
Proactive, solutions-driven mindset
Strong attention to detail and code quality
Comfortable making technical decisions independently
Passion for learning and improving
Ownership mentality: care about the end product
Benefits
Monthly salary: 5,**,** EUR gross for a full-time B2B collaboration
Remote-first opportunity
Stay active: sports membership or wellness subsidy
Health & Wellbeing: 23 days of PTO, annual health checkup budget
Grow with us: Education budget to fuel learning and professional development
Space Inch is not responsible for any job boards scraping this ad without showing the position as remote, but EU exclusive.
Applicants from outside of the EU will not be considered.
Space Inch is committed to providing an environment of equal employment opportunity.
We do not discriminate on the basis of race, color, religion, sex (including pregnancy, sexual orientation, or gender identity), national origin, age, disability, genetic information, or any other characteristic protected by applicable law.
This commitment extends to all aspects of employment, including recruitmen