[Job- 32175] Senior Back End Developer (Python/Golang & AI Integration), Colombia
Summary
Senior backend engineer at CI&T in Colombia who designs, builds, and scales Go/Python microservices on Microsoft Azure, integrating AI capabilities (LLM, RAG, tool calling) and SAP systems with resilient, event-driven patterns and Redis distributed caching.
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/4HANA 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 ID, 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.
Skills
As published by lever · 19 questions · 1 written answer
Basics
Resume/CV, Full name, Pronouns, Email, Phone, Current location, Current company, LinkedIn URL
Short answers (5)
- How comfortable do you feel working in an English-speaking environment?
- Please, confirm country and city where you are currently living
- When will you be available to start working with us? (DD/MM/AAAA)
- If the previous answer is Yes, please share the name(s) of these individuals. optional
- Confirm the name of the company where you work/ Confirme o nome da empresa em que você trabalha atualmente
Pick from a list (13)
- [EN] What is your level of confidence when communicating and collaborating in an English-speaking work environment? optional
- [ES] What is your level of confidence when communicating and collaborating in an Spanish-speaking work environment? optional
- How did you hear about our job opening? optional
- Do you have any relatives (such as parents, siblings, in-laws, spouses, or children, stepchildren, stepfather/stepmother, son-in-law/daughter-in-law), close friends, or acquaintances (with whom you have a significant and ongoing relationship) who currently work at CI&T?
- Are you legally authorized to work in Colombia?
- Do you require any type of accessibility for the selection process and/or in your daily life??
- Will you now or in the future require sponsorship for Colombia's employment visa status?
- Would you like to tell us your gender identity? We ask about gender identity to better understand and support the diverse identities of our employees and to ensure our workplace is inclusive. optional
- Are you part of the LGBTQIAP+ community? optional
- How would you self-declare? Collecting information on ethnic backgrounds allows us to ensure our diversity and inclusion efforts are effective and to address any potential disparities. optional
- To understand better your necessities or any accommodations you need for our process & interviews, we would like to know if you are a person with disabilities? optional
- If applicable, please tell us what type of disability you have: (Edit to include options:) optional
- By selecting the option below, I declare that I have read, understood, and agree to the terms of this document, and I consent to the processing of my personal data by CI&T and Lever for the purposes described herein. Read the document here: https://drive.google.com/file/d/1dMaskYl2VD1AtN9MfiHrZiA-YFYwq8aI/view optional
Written answers (1)
- What is your salary expectation? (please inform the gross amount in Colombian Pesos)