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[Job-31014] Senior Software Developer

Summary

Build and scale enterprise-grade Generative AI and Agentic AI systems using Python, RAG, and agent frameworks like LangChain, ensuring security, observability, and cost-efficient deployment in cloud environments.

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.


At CI&T, we are looking for a Senior Software Developer to join our global team and help design, build, and scale advanced Generative AI and Agentic AI solutions for enterprise clients.

This role is ideal for a professional with deep hands-on experience in Generative AI, LLMs, RAG, and agent-based architectures, combined with strong software engineering, cloud, and production-grade AI platform expertise.

You will work on the development of secure, scalable, observable, and reliable AI applications that support complex business workflows and large-scale enterprise environments.

Key Responsibilities
- Design, develop, and maintain GenAI and Agentic AI applications for production environments.
- Build customizable agent solutions using frameworks such as LangChain, DeepAgents, Strands AI, or similar Agent SDKs.
- Develop production-grade Python tooling and reusable AI components.
- Implement RAG pipelines, external knowledge integrations, memory management, and context orchestration strategies.
- Design secure sandboxed execution environments for agent tooling, including permissions, secrets management, network restrictions, and auditability.
- Build and maintain MCP (Multi-Cloud Platform) tooling, including authentication, schema design, versioning, retries, and safe execution boundaries.
- Implement observability, tracing, logging, and monitoring for prompts, tool calls, model performance, latency, and cost optimization.
- Create automated evaluation and testing frameworks for AI agents, including golden datasets, regression tests, hallucination detection, and quality gates.
- Design human-in-the-loop approval workflows for sensitive or high-risk operations.
- Manage prompt versioning, model routing, fallback strategies, and token/cost optimization for enterprise AI systems.
- Collaborate with Data, Analytics, Platform Engineering, and business stakeholders to deliver scalable AI solutions aligned with business goals.

Required Qualifications
- Advanced / Fluent English (C1 or higher), mandatory.
- Experience working with international clients and global teams.
- Strong hands-on experience with Automation, Generative AI, LLMs, RAG, and agent-based architectures (E.g.: Claude Code, Codex, Cursor, Windsurf)
- Proficiency in Python and software engineering best practices.
- Experience designing secure, scalable, and production-ready AI systems.
Solid understanding of AI model evaluation, deployment, observability, and operational reliability.
- Experience with agent execution pipelines, CI/CD integrations, backend AI workflows, and automated orchestration.
- Strong knowledge of prompt engineering, context management, hallucination mitigation, and knowledge freshness strategies.
- Ability to work autonomously in complex, fast-paced, and ambiguous environments.

Nice to Have
- Experience with Azure, AWS, or GCP, especially deploying Generative AI solutions in cloud environments.
- Familiarity with Databricks, Vertex AI, Azure OpenAI, Amazon Bedrock, or similar enterprise AI platforms.
- Experience with Docker, Kubernetes, and containerized AI workloads.
Knowledge of MLOps and AI/ML pipeline automation.
- Understanding of AI security, governance, compliance, and data privacy regulations.
- Certifications related to Generative AI, Machine Learning, Cloud, or AI Engineering.

Our benefits:
-Health and dental insurance
-Meal and food allowance
-Childcare assistance
-Extended paternity leave
-Partnership with gyms and health and wellness professionals via Wellhub (Gympass) TotalPass;
-Profit Sharing and Results Participation (PLR);
-Life insurance
-Continuous learning platform (CI&T University);
-Discount club
-Free online platform dedicated to physical, mental, and overall well-being
-Pregnancy and responsible parenting course
-Partnerships with online learning platforms
-Language learning platform
And many more!
More details about our benefits here:
At CI&T, inclusion starts at the first contact. If you are a person with a disability, it is important to present your assessment during the selection process. See which data needs to be included in the report by clicking here.This way, we can ensure the support and accommodations that you deserve. If you do not yet have the assessment, don't worry: we can support you in obtaining it.
We have a dedicated Health and Well-being team, inclusion specialists, and affinity groups who will be with you at every stage. Count on us to make this journey side by side.

What this application asks

lever

Resume/CV, Full name, Pronouns, Email, Phone, Current location, Current company, LinkedIn URL

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  • 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? choose one · optional
  • If the previous answer is Yes, please share the name(s) of these individuals. optional
  • Do you have availability for on-site work at the Campinas office (Brazil) every day? Just for informational purposes, in case your application is considered for other open positions. choose one · optional
  • Do you require any type of accessibility for the selection process and/or in your daily life?? choose one · optional
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  • IMPORTANT! If you answered that you are a person with a disability, this step is mandatory. Attach the medical report here upload · optional
  • What is your salary expectation for this position? (Brazilian Reals - CLT)
  • [EN] What is your level of confidence when communicating and collaborating in an English-speaking work environment? choose one · optional
  • How comfortable do you feel working in an English-speaking environment?
  • [ES] What is your level of confidence when communicating and collaborating in an Spanish-speaking work environment? choose one · optional
  • Confirm the name of the company where you work/ Confirme o nome da empresa em que você trabalha atualmente
  • 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 choose one · optional

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