Senior Java and React Developer

CI&T combines human expertise with artificial intelligence to deliver scalable technology solutions. With a global team of over 8,000 professionals and more than three decades of experience, CI&T has completed AI projects for clients across various industries. Location note: Candidates living in the Metropolitan Region of Campinas must comply with the curren…

At CI&T, we specialize 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. AI is at the core of our reality.Note: If you reside in the Metropolitan Region of Campinas, it will be mandatory to be present in our offices in the city, as per the current attendance policy.Hi, this is Bia from CI&T! I am a Talent Attraction Analyst looking for individuals located in Brazil to work as a Senior Fullstack Developer on one of CI&T's projects.Responsibilities/RequirementsWhile our focus is primarily on back-end development, we require a full-stack developer to assist with front-end tasks as needed.Develop and maintain web applications using Node.js and React.Work with back-end services in Go, Kotlin, Java, or Python.Implement and manage containers using Docker.Orchestrate services in Kubernetes environments.Contribute to the creation and maintenance of CI/CD pipelines.Utilize PostgreSQL databases for data storage, manipulation, and troubleshooting.Implement observability practices using Datadog.Integrate messaging systems like Kafka and S3 for service communication.Collaborate with cross-functional teams to define, design, and deliver new functionalities.Explore and implement AI-based coding solutions to optimize processes and development, familiar with tools such as Cursor, Claude Code, Copilot, or Winsurf.Knowledge of and experience with AWS, such as S3.#LI-BA1

At CI&T, we are experts in technology transformation, merging human intelligence with AI to develop scalable tech solutions.With a global team of over 8,000 professionals, we have established partnerships with more than 1,000 clients throughout our 30-year journey. Artificial Intelligence is at the core of our operations.In this position, you will be an integral member of the digital product teams for a well-known automotive brand in the USA. The applications you develop will significantly influence how customers discover, purchase, and engage with vehicles and connected services.We are in search of a Senior Fullstack Developer who has extensive experience with React and Java (Spring Boot), along with familiarity with Node.js and GraphQL. You will be responsible for designing, developing, and maintaining enterprise-level web applications and microservices that are high-performing, secure, and user-focused.

At CI&T, we excel in technology transformation, merging human expertise with cutting-edge AI to deliver scalable tech solutions.With a global workforce of over 8,000 CI&Ters, we have established partnerships with more than 1,000 clients throughout our 30-year history. Embracing Artificial Intelligence is a core part of our mission.We are actively seeking a Senior Fullstack Developer with expertise in Java, Node.js, and React to become a vital member of our team, working on an innovative project for a prestigious American investment client.Key Responsibilities:Analyze customer business challenges and identify pain points;Produce high-quality code;Conduct thorough code reviews;Assist in resolving business issues;Collaborate with multidisciplinary teams utilizing an agile delivery framework;Mentor and develop junior team members;Communicate effectively in English, participating in meetings and drafting technical documentation.Ideal Qualifications:Extensive experience in backend development with Java for services and APIs;Proficiency in Node.js;Experience working with React for frontend development;Knowledge of AWS services;Demonstrated experience in automated testing and a solid understanding of the Test Pyramid;Strong command of GIT;Proven track record with agile development methodologies;Advanced English proficiency (daily interactions with international teams).Note: Must be available to work at our Campinas office.

Role overview ciandt seeks a Mid-Level Java / React Developer based in Brazil. This position centers on designing and building software using Java and React. The team encourages fresh ideas and values creative approaches to problem-solving. Work will contribute directly to delivering products that address specific client needs. What you will do Design and implement software features with Java and React Work closely with team members to develop code that is reliable and easy to maintain Help build products aimed at solving real challenges for clients

We are specialists in technological transformation, combining human expertise with AI to create scalable tech solutions. With over 8,000 CI&Ters worldwide, we have partnered with more than 1,000 clients during our 30 years of history. Artificial Intelligence is our reality.Important: if you reside in the Campinas Metropolitan Area, your presence at the office in the city will be mandatory, according to our current attendance policy.Join Our Team as a Senior Fullstack Developer!Are you ready to tackle an innovative and challenging project for a major American investment client? We are looking for a talented Senior Fullstack Developer with experience in Java and/or Node.js and React to join our dynamic team.In this role, you will play a vital part in understanding our clients' business challenges and transforming them into high-quality software solutions. You will collaborate with multidisciplinary teams in an agile environment, mentoring other developers while actively participating in project meetings and technical discussions. Responsibilities:Understand client problems and challenges;Write high-quality software code;Conduct code reviews;Assist in resolving business issues;Work with multidisciplinary teams following an agile delivery model;Guide and train the team, developing successors;Communicate in English, actively participating in meetings and reviewing and writing technical documents in English. Qualifications for this Challenge:Advanced English (daily contact with people outside Brazil).Deep experience in backend development using Java for services and APIs;Experience with Node.js;Experience using React for frontend;Experience with AWS services;Proven experience in developing automated tests and understanding the Testing Pyramid concept;Deep understanding of GIT;Proven experience with agile methodologies; Important:Availability to work on-site in Campinas.

Join our dynamic team as a Senior Java Developer at Sigma Software Group, where your expertise will play a pivotal role in developing innovative software solutions. We are looking for a passionate and skilled developer who thrives in a collaborative environment and is eager to tackle complex challenges.Your responsibilities will include designing, implementing, and maintaining high-quality Java applications, ensuring optimal performance and responsiveness. You will work closely with cross-functional teams to gather requirements and provide technical guidance.

Join our innovative team at netbr1 as a Senior Java Developer. In this role, you will leverage your extensive experience in Java development to design, implement, and maintain high-quality software solutions. Collaborate with cross-functional teams to deliver projects that enhance our product offerings and meet client needs.

At CI&T, we specialize in technological transformation, merging human expertise with AI to craft scalable tech solutions. With over 8,000 CI&Ters globally, we have partnered with more than 1,000 clients throughout our 30-year history. Artificial Intelligence is our reality.Important: If you reside in the Metropolitan Region of Campinas, your presence in our Campinas office will be mandatory, in accordance with the current attendance policy.Key Responsibilities:- Collaborate with CI&T to serve a client in the financial sector;- Develop backend components;- Create and maintain high-quality, high-performance microservices;- Engage actively in all stages of the software development lifecycle, including technical refinement, development, testing, and deployment;- Work closely with the team to propose and implement technical solutions aligned with business requirements;- Participate in code reviews to ensure quality and adherence to best practices;- Foster a collaborative environment with both teammates and clients, promoting productivity and harmony;- Maintain clear and efficient communication with all team members, facilitating the exchange of information and alignment of objectives.Requirements:- Proficient in JAVA/Spring development;- Knowledge of Clean Code and REST APIs;- Ability to develop unit tests;- Experience in conducting code reviews;- Familiarity with Node.js;- Experience with version control tools (GitHub, GitLab, Azure DevOps Repos);- Understanding of agile methodologies such as SCRUM and KANBAN, including Dailies, sprints, and reviews;- Experience in a hybrid cloud environment (MS Azure), pipelines, sonar, and microservices architecture. Preferred Qualifications:- Knowledge in Generative AI;- Familiarity with Angular development;- Understanding of Hexagonal Architecture;- Experience with automated testing;- Familiarity with Docker and Kubernetes. #LI-BS3#senior

Role overview ciandt is hiring a Senior Java Backend Developer based in Brazil. This role focuses on building backend systems that support efficiency and strong performance for software projects. What you will do Develop backend solutions using Java Contribute technical expertise to software projects Support the creation of reliable and efficient systems

Join our dynamic team at Endava as a Senior Java Developer. In this role, you will leverage your expertise in Java development to deliver high-quality software solutions. You will collaborate closely with cross-functional teams to design and implement robust applications that meet our clients' needs.As a Senior Java Developer, you will be responsible for developing scalable and efficient applications, troubleshooting and debugging existing software, and mentoring junior developers. Your contributions will be vital in driving innovation and enhancing the overall performance of our projects.

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

Location: BrazilJob mode: Full-timeWork mode: Work from home Role overview Encora is seeking a Senior Full Stack Developer with strong experience in React and Python. This position joins an agile team focused on building digital products that support business objectives and client success. The role emphasizes both hands-on development and active participation in technical decisions. What you will do Design, develop, and maintain applications with attention to quality, scalability, and architectural best practices. Contribute to technical decision-making and advocate for continuous improvement in a senior capacity. Work closely with cross-functional teams, using strong communication skills and informal leadership to drive projects forward. Optimize application performance and reliability, making effective use of databases, search engines, and asynchronous processing. Requirements Extensive experience with Python programming. Proficiency in MySQL, including data modeling and query optimization. Solid knowledge of React. Experience using Redis for asynchronous processing. Familiarity with Elasticsearch for search optimization. Understanding of TypeScript is a plus. Demonstrated ability to design scalable architectures and follow development best practices.

Role overview ciandt is looking for a Senior Java Developer based in Brazil. This role plays an important part in delivering complex projects and contributing to technical solutions across the team. What you will do Develop and maintain Java applications as part of a collaborative team Work on projects that introduce new technologies and approaches Contribute expertise to help solve technical challenges What we look for Strong experience with Java development Ability to work independently and as part of a team Interest in learning and tackling new problems This position is open to candidates located in Brazil.

At CI&T, we are leaders in 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, making Artificial Intelligence a core part of our operations.Important: If you reside in the Metropolitan Region of Campinas, you will be required to work on-site in our Campinas office, according to the current attendance policy.Responsibilities:- Collaborate with the development team to deliver high-quality products to our clients;- Solve problems effectively;- Engage in daily team activities to foster knowledge sharing;- Update the status of tasks in project management tools;- Utilize and master AI in your daily work. Qualifications for this challenge:- Proficient in Angular;- Experience with Java (versions 8, 11, 17, and 21);- Familiarity with Spring and CDI frameworks;- Proficient in Typescript (Javascript);- Experience with AI applications in a corporate setting;- Knowledge of NodeJs;- Familiarity with CI/CD, Docker, and Kubernetes;- Understanding of DevOps culture;- Experience in code reviews;- Strong grasp of development best practices and principles (Clean Architecture);- Experience in microservices development;- Agile methodology experience;- Proficient in GIT;- Knowledge of databases;- Familiarity with RESTful APIs;- Experience with Azure Cloud.Preferred Qualifications:- Knowledge of Python and React is a plus;- Experience with monitoring and tracing tools such as Azure Monitor, Dynatrace, or similar.

Join Sigma Software Group as a Senior Full-Stack Developer specializing in Python and React. In this role, you will be responsible for designing, developing, and maintaining high-quality web applications. You will collaborate with cross-functional teams to deliver innovative solutions that meet client needs.

Join our dynamic team at Zup Innovation as a Senior Java Developer! We are committed to fostering a diverse and inclusive workplace, and we are particularly eager to welcome applications from individuals with disabilities.As a Senior Java Developer, you will work on innovative projects that challenge your technical skills and allow you to make a significant impact. Your expertise in Java and your ability to collaborate effectively with cross-functional teams will be essential in driving our projects to success.

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

CI&T works at the intersection of human expertise and AI, delivering technology solutions at scale. With more than 8,000 professionals worldwide and decades of experience across 1,000+ client partnerships, the company integrates Artificial Intelligence into daily operations. Location Requirement Important: Candidates living in the Metropolitan Region of Campinas are required to work onsite at the Campinas office, in line with the company’s current attendance policy. Role overview This Senior Java/Kotlin Developer position involves collaborating on projects for a financial sector client. The role combines hands-on development with supporting technical leadership and contributing to agile deployments. High-quality delivery remains a key focus throughout each project. Main responsibilities Collaborate with teams to deliver technology solutions for a client in the financial market Support technical leadership within the development group Participate in agile deployments, maintaining a strong focus on quality Requirements Solid experience in backend development using Java 11, Spring Boot, and Kotlin Practical experience with messaging systems such as SQS, Kafka, or RabbitMQ Automated testing experience is a plus Familiarity with PostgreSQL, including both relational and non-relational features Knowledge of AWS Cloud Soft skills Understanding of agile practices within development teams Resilience in the face of challenges Proactive work style Ability to partner with clients, understand their goals, and suggest solutions Strong communication skills to build constructive relationships with colleagues

We are seeking a skilled Developer with experience in commercial projects.The ideal candidate will be adept at diagnosing technical or business issues and crafting solutions through code. Collaboration with clients, partners, and various project stakeholders is essential for defining solutions, developing, and maintaining systems. The candidate will be responsible for defining and designing the architecture of new components or services in a secure and structured manner.