Mid Level Front End Developer (React) at CI&T | Brazil

At CI&T, we are at the forefront of technological transformation, merging human expertise with AI to develop scalable tech solutions. With a global team of over 8,000 CI&Ters, we have partnered with more than 1,000 clients throughout our 30-year history. Artificial Intelligence is central to our operations.Important: If you reside in the Metropolitan Region of Campinas, you will be required to work from the office in accordance with our current attendance policy.As a Systems Architect, you will spearhead the design and development of secure, resilient, and scalable cloud environments. You will collaborate with cross-functional teams to implement best practices in cloud architecture and API management, ensuring high-quality deliverables that meet client expectations. Your expertise will drive technical decisions and elevate team standards, fostering an environment of innovation and continuous improvement.Key Responsibilities:Design and develop solutions on the AWS platform adhering to architectural best practices.Define and document system architectures that meet both business and technical requirements.Lead technological decisions and establish development standards.Evaluate scalable and resilient technical solutions.Translate business requirements into effective technical solutions in collaboration with teams.Guide development teams in implementing best practices.Actively participate in the evolution of existing system architecture.Conduct performance analysis and optimization of applications.Understand the Value Stream roadmap and anticipate technical enablers.Manage technical risks, communicate impediments, and orchestrate product evolution trade-offs.Maintain technical relationships with stakeholders, ensuring functional and non-functional requirements are met.Promote continuous improvement in architectural practices and align technical decisions with client needs.What Your Daily Routine Will Look Like:Engagement with stakeholders: You will interact with various profiles (analysts, managers, users, partners) to ensure a comprehensive understanding of...

At CI&T, we are specialists in technological transformation, merging human expertise with AI to develop scalable tech solutions. With over 8,000 CI&Ters across the globe, we have formed partnerships with more than 1,000 clients throughout our 30 years of history. Artificial Intelligence is a core aspect of our operations.Note: If you reside in the Metropolitan Region of Campinas, in-person attendance at our Campinas office will be required, following our current attendance policy.We are in search of a skilled Systems Architect to spearhead and ensure technical excellence across complex projects by designing, validating, and governing highly effective architectural solutions. You will serve as a technical leader, mentor, and driver of innovation, aligning best engineering practices with business objectives.Key Responsibilities:- Design and validate comprehensive, end-to-end system architectures for various projects.- Transform business challenges into effective technical solutions utilizing industry best practices.- Ensure compliance with software engineering standards, architectural guidelines, and quality metrics.- Provide technical leadership, coaching, and training to fellow architects and engineering teams.- Collaborate with development, operations, and project management to guarantee solution integration and delivery efficiency.- Identify architectural and technical risks, proactively establishing mitigation strategies.- Conduct technical and architectural reviews to ensure compliance and scalability.- Engage stakeholders to gather requirements and offer architectural insights.- Foster a culture of innovation and consistently assess emerging technologies and industry trends.- Encourage knowledge sharing, documentation, and the dissemination of best practices.- Implement and enhance automation and AI-driven solutions to optimize delivery and operations.- Support continuous delivery pipelines and integration strategies in line with organizational standards.Required Skills & Expertise:- Expertise in systems and enterprise architecture design.- Proficient in software engineering best practices and design patterns.- Strong technical leadership and mentoring capabilities.- Risk analysis and solution governance experience.- Client relationship management and negotiation skills.- Familiarity with cloud platforms (AWS).- Proficient in databases: SQL and NoSQL.- Knowledge of integration architectures (APIs, microservices).- Experience with CI/CD and automation strategies.- Advanced English proficiency (above B2).Must Have:- Backend development experience: Java, Spring Boot.- Frontend development experience: Angular.- Strong knowledge of AWS resources (DynamoDB, Kafka, RabbitMQ).- Proficient in NoSQL tools, SQL, and relational databases.- Experience with Kafka and RabbitMQ.Nice to Have:- Familiarity with AWS SAM or CDK stack, AWS Lambda, etc.

CI&T desenvolve soluções tecnológicas escaláveis, combinando experiência humana com Inteligência Artificial. Com mais de 8.000 pessoas em seu time global, a empresa já colaborou com mais de 1.000 clientes ao longo de três décadas. A IA faz parte da rotina diária na CI&T. Aviso importante: Para quem mora na Região Metropolitana de Campinas, a presença nos escritórios será exigida conforme a política vigente. Sobre a vaga O papel de Senior Java Developer (Tech Lead) envolve liderar tecnicamente um projeto em uma das maiores seguradoras do Brasil. O foco está em orientar o time de desenvolvimento, promovendo colaboração, evolução técnica e entregas consistentes em ambiente ágil. Principais responsabilidades Liderar e apoiar a equipe de desenvolvimento, fornecendo orientação técnica diária. Participar de rituais ágeis: dailies, planejamentos, revisões e retrospectivas. Ajudar a construir e priorizar o backlog, garantindo entregas contínuas de valor. Projetar, desenvolver e implementar soluções com foco em qualidade, escalabilidade e manutenção. Revisar código e assegurar o uso de boas práticas de engenharia de software. Estimular o aprendizado contínuo e a colaboração dentro do time. Requisitos Experiência com desenvolvimento Java usando Spring. Conhecimento em testes unitários e automatizados. Atuação prévia com arquitetura de microserviços. Familiaridade com comunicação assíncrona (filas e tópicos). Experiência com CI/CD e integração contínua. Conhecimento em versionamento de código usando Git. Vivência em equipes ágeis. Conhecimento dos princípios SOLID e Clean Architecture. Habilidades de comunicação, trabalho em equipe e adaptação a diferentes cenários. Familiaridade com Inteligência Artificial. Diferenciais Conhecimento em Angular. Conhecimento em Node.js. Experiência com Kubernetes. Experiência com AWS e seus principais serviços.

CI&T is looking for a Senior Fullstack Developer based in Brazil with strong experience in Angular and Java. This role centers on building and enhancing software products in collaboration with cross-functional teams. Projects span both front-end and back-end work, with a focus on delivering practical solutions that create real value for clients. What you will do Develop and maintain applications using Angular and Java Collaborate with colleagues from various disciplines to achieve project objectives Share ideas and technical knowledge to improve products and development processes

CI&T brings together technology and human expertise to create scalable solutions for clients worldwide. With over 8,000 team members and three decades of experience, the company has supported more than 1,000 organizations, making artificial intelligence a key part of its approach. Role overview This mid-level Fullstack Developer position focuses on Java and Angular. The role involves working on a project in the financial sector, collaborating with a team based in Brazil. Location details Candidates living in the Metropolitan Region of Campinas must follow the current attendance policy, which requires working from the CI&T office in Campinas. Who we are looking for Fullstack developers with experience in Java and Angular Based in Brazil Ready to contribute to projects in the financial sector

CI&T brings together human expertise and artificial intelligence to deliver technology solutions at scale. With over 8,000 professionals worldwide and a track record of more than 1,000 client partnerships over three decades, the company integrates AI into both daily work and client projects. Location Requirement Important: Candidates living in the Metropolitan Region of Campinas must follow our current attendance policy, which requires onsite work at the Campinas office. Role Overview This Mid-Level Java Developer position is based in Brazil and supports a project within the financial sector. The role centers on collaborating with the development team to deliver solutions that meet client needs and business goals. Main Responsibilities Collaborate with team members to deliver high-quality technology solutions for clients. Apply a systemic approach to problem-solving, always considering business outcomes. Contribute to team development by participating in training sessions, dojos, and ongoing knowledge sharing. Required Qualifications Hands-on experience with Java 11 and 17, and Spring Boot 3. Familiarity with JavaScript and TypeScript (version 4 or above). Strong understanding of Design Patterns, object-oriented programming, and principles like SOLID, KISS, DRY, and YAGNI. Background in automated testing practices. Proficiency using Git. Knowledge of relational and/or non-relational databases. Experience building and consuming RESTful APIs. Preferred Qualifications Previous experience with front-end development.

Sobre a CI&T CI&T atua há 30 anos desenvolvendo soluções tecnológicas escaláveis, combinando inteligência artificial com expertise humana. Com mais de 8.000 profissionais e mais de 1.000 clientes globais, a empresa mantém a inovação como parte central do seu trabalho. Aviso para candidatos da Região Metropolitana de Campinas Para quem reside na Região Metropolitana de Campinas, a presença nos escritórios é obrigatória, conforme a política de frequência vigente. Visão geral da vaga O time busca um Desenvolvedor Java Sênior para atuar em projetos do setor bancário. O papel envolve desenvolvimento de aplicações, manutenção de sistemas críticos e garantia da qualidade das entregas. Principais responsabilidades Desenvolver novas aplicações e funcionalidades conforme o roadmap. Manter sistemas críticos em funcionamento. Monitorar o desempenho das aplicações e agir rapidamente diante de problemas. Acompanhar rotinas de processamento de arquivos para garantir eficiência. Investigar e resolver incidentes conforme necessário. Produzir código limpo, escalável e eficiente, seguindo boas práticas. Participar de revisões de código, oferecendo feedback construtivo. Diagnosticar e corrigir bugs e problemas de desempenho. Colaborar no design e arquitetura de sistemas. Garantir a qualidade das novas funcionalidades durante a homologação. Participar de reuniões interdepartamentais para acompanhar mudanças no ambiente. Preparar e supervisionar o gerenciamento de mudanças, incluindo deploys em produção. Tecnologias utilizadas Java: Java 11, Java 21 Frameworks: Spring, Spring Boot Gerenciamento de dependências: Maven Outras tecnologias: .NET Ferramentas de desenvolvimento: GIT, Jenkins, Docker Localização: Brasil

At CI&T, we are pioneers in technological transformation, merging human expertise with artificial intelligence to develop scalable tech solutions. With over 8,000 professionals globally, we have partnered with more than 1,000 clients throughout our 30-year journey. AI is at the heart of what we do.Important: If you reside in the Metropolitan Region of Campinas, attendance at our local office will be mandatory in accordance with our current attendance policy.We are on the lookout for a Software Architect with a systemic vision, a sense of ownership, and outstanding communication skills to join our team.In this role, you will serve as the primary technical and strategic reference for the project, working closely with leadership and clients. If you enjoy solving complex problems, can navigate between backend, frontend, and mobile contexts, and love optimizing resources without sacrificing performance, this position is for you!Responsibilities:- Collaboration with Leadership: Act as the right hand of the Tech Lead (TL), supporting daily operations, facilitating technical capacity building, and actively influencing project decisions;- Refinement and Unblocking: Lead the technical refinement of demands. You will conduct in-depth analyses and debugging of legacy codes to construct precise refinements, as well as unblock the team through escalation or resolving complex issues;- Design and Documentation: Create robust documentation and clear architectural designs to guide the development team;- Efficiency Focus: Propose modernizations, new technologies, and architectural improvements with two main objectives: ensuring optimal application performance and promoting financial efficiency (cost and infrastructure optimization) for the client context;- Core Architecture Responsibilities: Ensure scalability, security, resilience, and adherence to the best software engineering standards throughout the product lifecycle.Technical Requirements:- Significant prior experience as a Software Architect.- Deep practical knowledge in Fullstack development, with expertise in Java (Backend) and Angular (Frontend).- Experience in environments involving native Mobile integration and development (Android and iOS) — you don’t need to program apps from scratch, but you should understand the architecture, ecosystem challenges, and be able to guide integrations and mobile solutions.- Experience with code quality monitoring (Design Patterns, Clean Code, SOLID principles, Code Review, Sonarqube/OWASP, Automated Testing);- Familiarity with relational (SQLServer/Oracle/DB2) and non-relational databases (MongoDB).

CI&T combines human expertise and artificial intelligence to deliver technology solutions at scale. With over 8,000 professionals and a 30-year track record, the company partners with clients worldwide to make AI practical and valuable. Candidates based in the Metropolitan Region of Campinas must comply with the current office attendance policy and work from the Campinas office as required. Role overview This mid-level fullstack developer role centers on building and maintaining scalable systems using Java/Springboot and React/Next.js. The position involves integrating applications with cloud platforms and working closely with a technical team to deliver reliable solutions. Main responsibilities Develop and maintain applications with Java/Springboot and React/Next.js Participate in technical decisions and suggest improvements for scalability Integrate systems within secure and resilient cloud environments Design and implement BFF/microservices architectures for Kubernetes (EKS) deployments Help build CI/CD pipelines for secure, traceable releases Ensure observability using logs, metrics, and alerts Communicate technical solutions clearly and collaborate with team members Technologies and tools Cloud: AWS (primary), Azure (occasional) Platform: EKS, API Management, ECS, Lambdas, Storage, Queues Data: PostgreSQL, Oracle, Couchbase Integrations & Security: APIs, SSO (ForgeRock) DevOps: CI/CD, Infrastructure as Code Observability: Dynatrace Languages/Frameworks: Java/Springboot, React/Next.js Requirements Professional experience as a Java/Springboot developer Hands-on development with React/Next.js Working knowledge of AWS Cloud (Lambdas, SQS, EKS) Understanding of both relational and non-relational databases Technical maturity, collaborative approach, and focus on quality Clear communication skills Commitment to continuous improvement and operational reliability Preferred qualifications Experience with caching tools such as Redis Background in corporate or governed environments Work with API-oriented architectures and microservices Exposure to solutions using Artificial Intelligence Experience communicating with technical leadership at client organizations Desired knowledge Advanced understanding of data security practices

At CI&T, we are leaders in technological transformation, blending human expertise with AI to create scalable tech solutions. With a workforce of over 8,000 CI&Ters globally, we have forged partnerships with more than 1,000 clients over our 30-year history. Embracing Artificial Intelligence is at the core of our operations.Note: If you reside in the Metropolitan Region of Campinas, in-office attendance will be required in accordance with our current attendance policy.We are seeking a skilled Software Architect to join the CI&T team. Your role will involve designing, evolving, and implementing medium to large-scale technological solutions, merging architectural vision with hands-on execution. You will support various initiatives, ensuring proposed solutions are sustainable, scalable, and aligned with best software engineering practices. We expect candidates to navigate effectively between strategy and execution, contributing to both architecture definition and solution implementation and evolution. Additionally, you will play a crucial role in adopting Generative Artificial Intelligence (GenAI) throughout the software development lifecycle, fostering innovative approaches to designing, building, and enhancing solutions with intelligent agents.Responsibilities:Design modern, scalable, and resilient solution architectures, considering various contexts and levels of technological maturity.Engage hands-on in building proof of concepts (POCs) and critical solutions.Integrate GenAI within the Software Development Life Cycle (SDLC), identifying opportunities for efficiency and quality enhancements.Design and guide the construction of AI agents applicable to different stages of software development.Support teams in technical design and decision-making, promoting best engineering practices.Conduct technical assessments on existing systems, proposing evolution, modernization, or migration strategies.Contribute to the definition of architectural standards, guidelines, and best practices.Evaluate and recommend new technologies, including AI-based solutions.Collaborate with various stakeholders to ensure alignment between business needs and technical solutions.Create and maintain clear and structured technical documentation.Mentor developers and influence the technical growth of teams. Qualifications for this role:Solid experience in software architecture and development, with practical (hands-on) experience.Proficiency in at least one modern backend language (Node.js, Python, Java, .NET, or similar).Knowledge of Generative Artificial Intelligence applied to software development (code generation, testing, documentation, analysis, etc.).Experience with agent-based solutions.

CI&T is searching for a mid-level Product Owner (Pleno) to join the team in Brazil. This position plays a key part in shaping digital products that reflect customer needs and support business objectives. Candidates living in the Metropolitan Region of Campinas must work onsite at the Campinas office, following current attendance policies. Role overview The Product Owner (Pleno) acts as the main point of contact between customers, stakeholders, and development teams. The focus is on translating customer requirements into clear features and user stories, ensuring products deliver real value and align with CI&T’s strategy. Main responsibilities Define and maintain the product roadmap to support company vision and goals. Gather, analyze, and prioritize customer requirements, converting them into epics and user stories that meet Definition of Ready, Definition of Done, and Acceptance Criteria. Collaborate with development teams to clarify requirements and support accurate implementation. Manage the product backlog, ranking user stories by value, risk, and customer impact. Participate in Agile ceremonies such as sprint planning, reviews, and retrospectives. Conduct user testing to confirm new features meet expectations and maintain product quality. Communicate regularly with stakeholders, providing updates and sharing product information. Monitor product performance, gather feedback, and drive ongoing improvements. Keep up to date with market trends and best practices in product management. Work closely with design and development teams to ensure user needs are addressed and features are delivered as planned. Seniority level This is a mid-level (Pleno) position.

CI&T brings together human expertise and AI to deliver scalable technology solutions. With over 8,000 professionals worldwide and more than 1,000 clients served in 30 years, CI&T continues to drive innovation in the tech sector. Role Overview CI&T is hiring a Salesforce Developer in Brazil. This role involves building and maintaining enterprise-grade solutions using Salesforce Core Clouds (Sales, Service, Experience) and newer technologies such as Data Cloud and Agentforce. Developers work in Agile squads, supporting client projects and contributing to CRM and automation initiatives. What You Will Do Develop and maintain scalable solutions with Apex, Lightning Web Components (LWC), SOQL, and custom metadata types. Build automation using Flows, declarative tools, API integrations, and Mulesoft. Participate in code reviews, manage Salesforce Change Sets, and work with CI/CD tools like Copado and Gearset. Apply Salesforce development best practices and security standards throughout your work. Enhance Sales Cloud features, including lead and opportunity lifecycle management and custom quote flows. Support Service Cloud, focusing on case management and Omni-Channel Routing. Customize Experience Cloud portals using Lightning components and tailored user experiences. Requirements Must-Have Skills Deep experience with Salesforce Core Clouds (Sales, Service, Experience). Strong skills in Apex, LWC, and SOQL. Background in automation tools and API integrations. Solid understanding of Salesforce best practices and security standards. Fluent English and strong communication skills. Nice-to-Have Skills Familiarity with Data Cloud and Agentforce. Experience with CTI integrations, Einstein Bots, and Service Console enhancements. CI&T values collaboration, innovation, and transformation. The team is powered by AI and a commitment to continuous improvement.

Role Overview CI&T is seeking a Senior Developer with a focus on Generative AI to join the team in Brazil. This position centers on designing, building, and deploying AI-driven solutions that support business goals. What You Will Do Develop and implement software using Generative AI technologies Collaborate with cross-functional teams to deliver solutions that address customer needs Contribute to projects that improve user experience and add business value Who We’re Looking For Experience with Generative AI and related technologies Strong software development skills Comfort working in a collaborative, team-oriented setting Interest in solving complex technical challenges Location This role is based in Brazil.

At CI&T, we are leaders in technological transformation, combining human expertise with AI to develop scalable tech solutions. With over 8,000 CI&Ters worldwide, we have partnered with more than 1,000 clients throughout our 30-year history. Artificial Intelligence is not just our focus; it's our reality.Important: If you reside in the Metropolitan Region of Campinas, you will be required to be present at our offices in the city, in accordance with the current attendance policy.We are searching for a talented COBOL/Mainframe Developer with substantial experience in large-scale environments and practical knowledge of the traditional mainframe technology stack, particularly within banking environments. We desire an individual who demonstrates technical excellence, organizational skills, and effective communication within agile teams.Key Responsibilities:Develop, troubleshoot, and maintain legacy systems in a Mainframe environment;Work with COBOL, JCL, and sequential file manipulation;Utilize SQL and DB2/HPU for data handling and queries;Operate and monitor scheduling routines using tools like CONTROL-M and IWS;Engage with various utilities (HPU, SORT, PLAN, among others);Interact with specific systems and tools in the environment such as HexaVision, TSO, CDES;Actively participate in ceremonies and processes within agile methodologies (Scrum, Kanban, etc.).Required Qualifications:A minimum of 2 years of hands-on experience with:COBOL;JCL;Mainframe utilities (HPU, SORT, PLAN...);Sequential files;DB2 (via HPU) and SQL language;CONTROL-M and/or IWS;Environment (HexaVision, TSO, CDES, etc.);Experience working in agile teams.Preferred Qualifications:Knowledge of VSAM;Experience with ADABAS/Natural.This position requires availability for travel to the Osasco or Curitiba regions twice a week.

CI&T brings together human expertise and advanced AI to build scalable technology solutions. With a team of more than 8,000 professionals worldwide and over 1,000 clients, the company draws on thirty years of experience. Artificial Intelligence is central to CI&T’s work. Role overview The Senior Data Analyst will analyze and interpret data to support every stage of the data product lifecycle. This includes initial concept, development, deployment, and ongoing optimization. The position requires strong technical skills, strategic thinking, and critical analysis. Collaboration with colleagues is essential to deliver successful data-driven projects and maintain daily operations. Key responsibilities Analyze and interpret complex data sets Enhance and optimize data products throughout their lifecycle Work closely with team members to ensure project success Support both project execution and routine data operations Requirements Technical proficiency in data analysis Strategic and analytical mindset Strong teamwork and communication skills This position is based in Brazil.

At CI&T, we are specialists in tech transformation, merging human expertise with cutting-edge AI to deliver scalable technology solutions.With a global workforce of over 8,000 CI&Ters, we have successfully partnered with more than 1,000 clients throughout our 30-year journey, making Artificial Intelligence a core aspect of our reality.Key Responsibilities:- Implement and oversee integration standards as defined by Solution Architecture- Manage and operate API and integration platforms- Ensure security of APIs and integrations- Maintain end-to-end observability of integrations- Facilitate both synchronous and asynchronous integrations- Empower teams and vendors in integration processes- Guarantee the reliability and quality of integrationsRequired Skills:- Proficient experience with Azure and/or AWS- Expertise in REST API design and development: OpenAPI/Swagger, API versioning, and authentication patterns- Experience with microservices architecture integration- API management skills using Azure APIM- Familiarity with API Gateway patterns including rate limiting, caching, and request/response transformation- Version control proficiency with Git- Knowledge in monitoring and observability techniques: metrics, alerts, and dashboards- Infrastructure as Code (IaC) experience using TerraformPreferred Qualifications:- Skills in API analytics: usage patterns and performance optimization- Experience with SaaS integrations (SAP, Salesforce)Soft Skills:- Fluency in Portuguese and/or Spanish, as well as English- Capability to collaborate with external partners and vendors- Strong documentation and knowledge-sharing skills

Role overview CI&T seeks a Senior Java Developer located in Brazil. The position centers on building and maintaining software solutions that align with client business requirements. Teamwork is a key part of this role, with frequent collaboration alongside experienced colleagues. What you will do Design, develop, and maintain applications using Java Create software solutions that help improve client processes Collaborate with other professionals to deliver reliable, high-quality results Apply deep knowledge of Java and remain open to learning new technologies and approaches

At CI&T, we are leaders in tech transformation, merging human talent with AI to deliver scalable technology solutions.With a global team of over 8,000 professionals, we proudly partner with more than 1,000 clients, showcasing three decades of innovation. Artificial Intelligence is at the core of our operations.We are on the lookout for a skilled Senior .NET Developer to join our innovative team! Key Responsibilities:Design, develop, and uphold high-quality C# code within our microservices architecture.Implement intricate business logic for a prominent client in the food industry.Prioritize tasks effectively to ensure the delivery of performant solutions.Maintain comprehensive documentation and engage in CI/CD processes.Create APIs to enhance communication between microservices.Apply messaging patterns to facilitate asynchronous service communication.Integrate external systems and databases while preserving system integrity.Implement robust error handling and ensure resilience in service interactions.Develop thorough unit and integration tests for C# components.Conduct code reviews to uphold code quality and architectural standards.Troubleshoot complex technical issues within the service ecosystem.Guide junior developers in C# best practices and design patterns.Participate actively in technical decision-making and architectural planning. Required Qualifications:Proven experience with C# and .NET development.In-depth knowledge of .NET Core/5+ and ASP.NET Core Web API.Experience working with microservices architecture and distributed systems.Strong proficiency in asynchronous programming patterns in C# (Task, async/await).Advanced skills in C#, including LINQ, generics, and reflection.Experience with dependency injection and inversion of control patterns.Familiarity with ORM frameworks such as Entity Framework Core.Knowledge of RESTful API design and implementation.Experience with SQL Server and crafting efficient queries.Understanding of data access patterns and transaction management.Familiarity with database performance optimization techniques.Experience with data serialization formats (JSON, XML).Proficiency in unit testing frameworks (xUnit, NUnit, or MSTest).Familiarity with mocking frameworks (Moq, NSubstitute).Experience with Docker for containerization.Fluent in English. Preferred Qualifications:

CI&T seeks a Senior .NET Developer to help maintain and modernize a suite of web applications. This position is based in Brazil and centers on both backend and frontend work, with a focus on upgrading authentication systems and moving applications to the latest .NET Core versions. The current stack combines ASP.NET, .NET Core, and a React-based interface. What you will do Maintain and enhance web applications built with ASP.NET and .NET Core, using React for the frontend. Redesign authentication and authorization, working with OAuth2/OIDC, JWT, and identity providers. Plan and execute migrations to newer .NET Core versions. Work with AWS cloud services, MySQL, PostgreSQL, and connect with external systems. Use Bitbucket for version control, manage CI/CD pipelines, and apply Playwright for automated testing. Collaborate with stakeholders and clarify requirements in English. Requirements Minimum 5 years of experience with .NET (C#) and web development. Direct experience with authentication flows and migrating between .NET versions. Proven ability to use React in production settings. Background working with AWS, relational databases, and integrating third-party APIs. Skilled in Bitbucket or Git, with experience in automated testing; Playwright knowledge is a plus. Fluent English and strong communication skills. Location This role is based in Brazil.