Senior Back End Developer; Python​/Golang & AI Integration), Colombia

At CI&T, we help large enterprises transform the potential of AI into real business impact with AI Deployment, AI-native execution, and tech-integrated business solutions.

With 30 years of experience in technological transformation, we accelerate innovation with expertise in Agentic SDLC, Application modernization, Data & AI, Martech and Business strategy.

We are 8,000 CI&Ters across more than 25 countries, collaborating to build solutions with real impact. AI is already part of how we work, evolve, and innovate every day.

We are looking for a Senior Backend Engineer to design, develop, and scale high-performance backend services, integrating AI capabilities into modern distributed systems. This role combines strong backend engineering expertise with hands‑on experience in LLM integrations, Retrieval-Augmented Generation (RAG), and tool calling, leveraging technologies such as Go, Python, and Microsoft Azure.

The ideal candidate will bring a solid understanding of microservices architecture, event‑driven systems, distributed caching, and resilient service design to build reliable, scalable, and AI‑enabled backend solutions.

• - Backend Architecture & Development:
  Design, develop, and maintain scalable backend services and APIs using Go and Python, applying microservices and event‑driven architecture principles to support high‑performance, distributed applications.
• - AI & LLM Integration:
  Integrate LLM capabilities into backend services, implementing RAG pipelines, tool calling, and AI orchestration patterns to enable intelligent, context‑aware application workflows.
• - Cloud Infrastructure & Performance Optimization:
  Build and integrate cloud‑native services on Microsoft Azure, implementing distributed caching strategies with Redis and optimizing service performance, scalability, and resource utilization.
• - Reliability & Distributed Systems Engineering:
  Design resilient backend architectures by implementing fault tolerance, retries, timeouts, and appropriate error‑handling strategies, ensuring reliable communication and execution across distributed services and AI‑powered workflows.

• - Languages:
  
  Go (Golang) and Python.
• - SAP integration (required): S/4
  
  HANA and ERP via OData, IDocs, BAPIs, RFCs, APIs and middleware. Preferred: BTP, CPI, MDG, Variant Configuration.
• - Azure integration: APIM, Service Bus, Event Hubs, PostgreSQL, SQL, Entra , OAuth 2.0 and OIDC, Key Vault, networking, IaC.
• - Caching (required):
  Redis, distributed caching, cache‑aside, invalidation.
• - AI (lighter): LLM integration, tool calling, RAG, and AI coding tools (Codex, Claude Code, Copilot).
• - Architecture: microservices, event‑driven systems, resiliency and retries.

#LI-LO1

• - Premium Healthcare
• - Meal voucher
• - Maternity and Parental leaves
• - Mobile services subsidy
• - Sick pay-Life insurance
• - CI&T University
• - Colombian Holidays
• - Paid Vacations

And many others.

Collaboration is our superpower, diversity unites us, and excellence is our standard.

We value diverse identities and life experiences, fostering a diverse, inclusive, and safe work environment. We encourage applications from diverse and underrepresented groups to our job positions.