Senior Software Engineer (TypeScript | React | AWS | AI)

Senior Software Engineer (TypeScript | React | AWS | AI) Job Purpose

As a Senior Software Engineer at CI&T, you will serve as the technical lead within a cross-functional project team, taking ownership of the end-to-end design, development, and delivery of modern full-stack solutions. You will work across a serverless AWS back-end, React and Next.js front-end, and Drupal-based content platform, while driving technical direction, engineering standards, and solution architecture.

You will also lead the adoption of AI-driven engineering by building and orchestrating AI agents that improve development speed, testing, support, and operational efficiency. As a trusted technical partner to the client, you will mentor engineers, lead technical discussions, solve complex engineering challenges, and drive continuous improvement across the project.

Required Technical Stack

Core Tech Stack: TypeScript | Node.js | React | Next.js | AWS | AI Agents | REST APIs | CI/CD

• TypeScript / JavaScript – Strong experience with modern development practices and patterns
• Node.js – Extensive experience developing scalable back-end applications and RESTful APIs
• React / Next.js – Strong experience building modern, responsive front-end applications
• AWS – Experience with Lambda, API Gateway, CloudFront, S3, SQS, IAM, WAF, Secrets Manager, SSM, and CloudWatch
• AI Agents – Experience building, orchestrating, or integrating AI agents into software solutions or engineering workflows
• API Security – Experience with Lambda authorizers, JWT authentication, API keys, and usage plans
• Infrastructure as Code – AWS CDK and SAM/CloudFormation
• Testing – Jest, Playwright, Cypress, and automated testing practices
• API Development – Swagger/OpenAPI and Postman
• CI/CD – GitHub Actions and DevOps practices
• Monorepo – Turborepo with npm workspaces or Yarn

Key Accountabilities

Technical Leadership & Engineering Excellence

• Lead the technical direction of the project and contribute to architecture and design decisions across the full technology stack
• Translate business and client requirements into scalable, secure, and maintainable technical solutions
• Lead technical planning, backlog refinement, estimation, and task breakdown
• Identify and manage technical debt, risks, dependencies, and architectural trade-offs
• Act as the escalation point for complex technical issues and lead troubleshooting and resolution
• Establish coding standards, code review practices, testing strategies, and engineering best practices
• Drive application performance, scalability, reliability, security, and maintainability
• Evaluate new technologies and lead proof-of-concept initiatives that improve engineering quality and delivery

Full-Stack Development & Implementation

• Design, develop, and maintain serverless back-end services and RESTful APIs using TypeScript, Node.js, AWS Lambda, and API Gateway
• Implement secure API access patterns using Lambda authorizers, JWT authentication, API keys, and usage plans
• Build search and data capabilities using Amazon OpenSearch Serverless, SQS, and S3
• Develop responsive front-end applications using React, Next.js, and MUI
• Work within a Turborepo monorepo using npm workspaces or Yarn
• Contribute to and support Drupal 10 and PHP 8.3, including SAML SSO integrations and platform upgrades
• Write clean, maintainable, well-documented, and production-ready code
• Support enhancements and maintenance across existing full-stack applications and technical systems

AI Agents & Automation

• Design, build, and orchestrate AI agents that automate and accelerate development, testing, support, and operational workflows
• Integrate AI capabilities into project solutions and internal engineering tools in a secure, reliable, and cost-effective manner
• Establish guidelines and best practices for responsible AI adoption within the engineering team
• Measure and continuously improve the impact of AI-driven engineering initiatives
• Share knowledge and mentor team members on AI-assisted engineering practices

Development Standards & Best Practices

• Establish and enforce coding standards, code review practices, and quality assurance procedures
• Lead code reviews and provide constructive feedback to improve overall code quality
• Define and implement testing strategies across unit, integration, end-to-end, and load testing
• Apply security best practices across authentication, secrets management, IAM, and network protection
• Consider performance, scalability, reliability, and cost in technical decisions
• Drive continuous improvement across development processes, tooling, and engineering practices

Cloud, DevOps & Operations

• Provision and manage cloud resources using AWS CDK and SAM/CloudFormation
• Own and improve CI/CD pipelines using GitHub Actions
• Lead release management and deployment activities across environments
• Support containerized workloads using Docker and Kubernetes
• Ensure application observability and reliability through New Relic and CloudWatch
• Lead post-deployment monitoring, incident response, and root cause analysis
• Drive preventive actions to improve system reliability and operational performance

Team Development & Mentorship

• Mentor and coach junior and middle-level engineers through technical guidance, pairing, code reviews, and knowledge sharing
• Lead onboarding and knowledge transfer for new team members
• Support continuous learning and adoption of modern engineering practices
• Contribute to technical hiring, interviews, and assessments
• Share expertise in TypeScript, Node.js, React, Next.js, AWS, AI, and full-stack development

Client & Stakeholder Engagement

• Serve as the primary technical point of contact for the client
• Lead technical discussions, demonstrations, and solution proposals
• Translate business requirements into scalable technical solutions
• Communicate technical decisions, risks, blockers, and recommendations clearly
• Collaborate with designers, product managers, QA, and other stakeholders
• Provide technical input on feasibility, timelines, dependencies, and project requirements
• Build strong client relationships through technical excellence and effective communication

Business Adaptability & Professional Growth

• Demonstrate Technical Leadership: Take ownership of technical outcomes, make sound engineering decisions, and guide the team toward delivery goals
• Drive Adaptability & Growth: Navigate changing priorities, technologies, and business requirements with confidence
• Execute Quality-Focused Development: Deliver secure, scalable, maintainable, and well-tested solutions
• Practice Effective Communication: Clearly communicate technical concepts to both technical and non-technical stakeholders
• Champion Continuous Learning: Stay current with AI, cloud, full-stack, and software engineering trends and bring relevant practices to the team
• Promote Engineering Excellence: Continuously improve development, delivery, and operational practices

Core Technology Requirements

TypeScript | JavaScript | Node.js | React | Next.js | AWS | Lambda | API Gateway | S3 | SQS | IAM | CloudWatch | AI Agents | REST APIs | AWS CDK | SAM/CloudFormation | GitHub Actions | Jest | Playwright | Cypress | Swagger/OpenAPI | Postman | Turborepo

Strong hands-on experience in full-stack software development, TypeScript/Node.js, React/Next.js, AWS serverless technologies, API development, and modern engineering practices is expected. Experience building or orchestrating AI agents is also a key requirement for this role.

Preferred Qualifications

• Experience with Amazon OpenSearch or OpenSearch Serverless
• Experience with PHP 8.x and Drupal 10
• Experience with SAML SSO, PHPUnit, PHPStan, and PHPCS
• Experience with Docker, Kubernetes, and Helm
• Experience with Storybook, Artillery, LaunchDarkly, FullStory, New Relic, or Pantheon
• Experience working with international clients in distributed or remote teams
• Experience with cloud-native and serverless architecture
• Experience designing and optimizing distributed systems
• Experience with AI-assisted software development and engineering automation

Key Competencies

• Excellent English communication and documentation skills
• Strong analytical, problem-solving, and debugging abilities
• Ability to troubleshoot complex and distributed systems
• Strong understanding of software architecture and system design
• Proactive approach to identifying technical risks and improvement opportunities
• Strong ownership, accountability, and decision-making skills
• Ability to collaborate effectively with global and cross-functional teams
• Strong mentoring and technical leadership skills
• Ability to communicate complex technical concepts to technical and non-technical stakeholders
• Strong interest in emerging AI and cloud technologies