[Job- 32405] Senior Back End Developer (Python/Golang, AI Integration & SAP), Colombia

OpenKrill; United States; Remote; USD 140,000 - 200,000; Full time

Benefits offered by this job

Premium Healthcare

Meal voucher

Maternity and Parental leaves

Mobile services subsidy

Sick pay-Life insurance

CI&T University

Colombian Holidays

Paid Vacations

Job summary

CI&T is seeking a Senior Backend Engineer in the United States to design, develop, and scale high-performance backend services that integrate AI capabilities into modern distributed systems. You will work with Go and Python, building microservices, event-driven flows, and AI orchestration patterns on Azure.

Responsibilities include designing scalable architectures, implementing RAG pipelines, tool calling, and resilient fault-tolerant services, with a focus on performance, reliability, and

Qualifications

• Languages: Go (Golang) and Python.
• SAP integration: 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.

Responsibilities

• 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.

Skills

Go (Golang)

Python

Backend development

Microservices

LLM integration

Event-driven architecture

Distributed caching

Tools

SAP integration

S/4HANA

OData

IDocs

BAPIs

RFCs

APIM

Service Bus

Event Hubs

PostgreSQL

SQL

Entra ID

OAuth 2.0

OIDC

Key Vault

Infrastructure as Code

Tool calling

RAG

Codex/Claude Copilot

Job description

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.

Responsibilities:

• 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.

Requirements:

• 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.

#LI-LO1

Our benefits include:

• 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.