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

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

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

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