[Job-31014] Senior Software Developer

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. 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: https://ciandt.com/br/pt\-br/carreiras 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.