Job at a glance
Get to know us better CodiLime is a software and network engineering industry expert and the first-choice service partner for top global networking hardware providers, software providers and telecoms. We create proofs-of-concept, help our clients build new products, nurture existing ones and provide services in production environments. Our clients include both tech startups and big players in various industries and geographic locations (US, Japan, Israel, Europe).
While no longer a startup - we have 250+ people on board and have been operating since 2011 we’ve kept our people-oriented culture. Our values are simple: Act to deliver. Disrupt to grow. Team up to win. The project and the team You will work on a large-scale, multi-tenant B2B commercial execution platform used by enterprise go-to-market teams. It combines cloud software, capability benchmarking and advanced analytics to turn commercial strategy into measurable action - from account planning and partner management to pricing and sales performance.
This is a backend-focused Software Engineering role with a strong AI component. You'll build and operate the Python services behind the platform - APIs, data access, background processing - and you'll design and integrate the generative AI capabilities that sit on top of them: connecting LLMs with the platform's enterprise data, APIs and internal tools through prompt design, tool calling, workflow orchestration, guardrails and human review, all instrumented so that quality, latency and cost are measurable rather than assumed.
Daily use of AI development tools is part of how the whole team works, not an add-on. You're expected to use assistants like Claude Code across coding, testing, debugging and code review - and to validate everything they produce before it reaches production. You'll be in regular, direct contact with product managers, designers and client-facing stakeholders, and you'll collaborate with a dedicated team of data scientists on the platform's harder analytical challenges: you own the product integration layer, they own the deeper modelling work.
Security runs through everything. This is a multi-tenant SaaS platform handling sensitive enterprise client data, so every service you ship needs to respect tenant isolation, role-based access control and least-privilege data access - across the API, data and AI workflow layers. What else you should know: Team: Product Managers, UX Designers, Fullstack Engineers, Data Engineers, DevOps Engineers, AI Engineers, Data Scientists You own the product-facing AI integration layer; deeper ML and data-science work is handled by dedicated specialists you collaborate with AI-augmented development is a core expectation of the role, not optional - daily use of tools like Claude Code or Codex across coding, testing, debugging, and code review Multi-tenant SaaS platform handling sensitive enterprise client data - a security-first mindset is expected at every layer Agile, collaborative, impact-driven environment with close cooperation with business and client-facing stakeholders Strong ownership culture and product mindset We work on multiple interesting projects at a time, so it may happen that we’ll invite you to an interview for another project if we see that your competencies and profile are well suited for it.
More reasons to join us Flexible working hours and approach to work: fully remotely, in the office or hybrid Professional growth supported by internal training sessions and a training budget Solid onboarding with a hands-on approach to give you an easy start A great atmosphere among professionals who are passionate about their work The ability to change the project you work on Do we have a match? As an AI Engineer, you must meet the following criteria: 6+ years of professional experience in software engineering with Python Experience with FastAPI and Pydantic - endpoint design, dependency injection, models and validators, auth and error handling Solid REST API design - versioning, predictable error semantics, token management, retries - with OAuth 2.0/Okta, JWT and role-based access control (RBAC) Experience with automated testing with pytest Strong SQL fundamentals (joins, GROUP BY, aggregate functions, query optimisation) and hands-on experience using PostgreSQL from Python - ORMs, database drivers, and a clear understanding of the trade-offs between synchronous and asynchronous drivers Solid experience deploying and operating applications on Kubernetes Experience with CI/CD pipelines (ideally GitHub Actions) Hands-on experience integrating LLM APIs into production applications, including prompt design, tool/function calling, and safe handling of non-deterministic output Experience using AI coding assistants such as Claude Code, Codex, or similar on a daily basis Understanding of multi-tenant SaaS application security Ability to evaluate AI features and monitor quality, latency, cost, and reliability Product mindset and ownership - you identify problems, propose solutions, and take features from idea to production Strong communication skills and good knowledge of English (minimum C1 level) Beyond the criteria above, we would appreciate the following nice-to-haves: Evaluation and observability tooling for LLM features: eval harnesses, tracing, output scoring (LangSmith, Langfuse, Arize Phoenix or OpenTelemetry) Systematic prompt optimisation - versioned prompts, A/B tests, DSPy Agentic patterns beyond single LLM calls: multi-step orchestration, context management, guardrails and human-in-the-loop Retrieval-augmented generation (RAG) and vector search (pgvector, Pinecone), plus frameworks such as LangChain or LangGraph Experience with Snowflake or a comparable cloud data warehouse Temporal, Socket.IO / WebSockets, Redis, pub/sub Working knowledge of React / TypeScript — enough to make small front-end changes when a feature needs them What else you should know: Team: Product Managers, UX Designers, Fullstack Engineers, Data Engineers, DevOps Engineers, AI Engineers, Data Scientists You own the product-facing AI integration layer; deeper ML and data-science work is handled by dedicated specialists you collaborate with AI-augmented development is a core expectation of the role, not optional - daily use of tools like Claude Code or Codex across coding, testing, debugging, and code review Multi-tenant SaaS platform handling sensitive enterprise client data - a security-first mindset is expected at every layer Agile, collaborative, impact-driven environment with close cooperation with business and client-facing stakeholders Strong ownership culture and product mindset We work on multiple interesting projects at a time, so it may happen that we’ll invite you to an interview for another project if we see that your competencies and profile are well suited for it.
Technology stack: Backend: Python, FastAPI, Pydantic, REST, pytest Data: SQL, PostgreSQL, SQLAlchemy/async drivers, Snowflake, Redis Cloud & DevOps: Azure / AWS, Docker, Kubernetes, GitHub Actions AI: LLM APIs, prompt engineering, tool/function calling, LangChain/LangGraph, RAG, vector search (pgvector, Pinecone) AI-assisted Development: Claude Code, Codex AI observability & MLOps: LangSmith, Langfuse, Arize Phoenix, OpenTelemetry Authentication & Security: OAuth 2.0, Okta, JWT, RBAC Real-Time & Messaging: Temporal, Socket.IO / WebSockets