We are tech transformation specialists, uniting human expertise with AI to create scalable tech solutions.
With over 8,000 CI&Ters around the world, we’ve built partnerships with more than 1,000 clients during our 30 years of history. Artificial Intelligence is our reality.
We are looking for a Senior Java Developer to join our team and contribute to the development and refactoring of a complex software solution that manages physical devices in retail stores, such as card machines and barcode readers. This role will require working closely with a multicultural team spread across Brazil, Colombia, and India, with all communication conducted in English.
Key Responsibilities:
- Design, build, and maintain backend services using Java 21, Spring Boot, and Hawkbit.
- Implement and evolve REST and gRPC APIs, ensuring best practices and versioning standards.
- Ensure service reliability through unit and integration testing, troubleshooting, and root-cause analysis.
- Work with PostgreSQL for schema design and performance tuning, integrating with caching layers, session management and Pub/Sub like Redis.
- Build and debug containerized services using Docker and deploy them on Kubernetes (GKE).
- Apply security fundamentals, including OAuth2/OIDC, JWT validation, and secure coding practices.
- Collaborate with cross-functional teams, ensuring clear communication and ownership of deliverables.
- Contribute to CI/CD workflows (Tekton/Jenkins, ArgoCD) following GitOps principles.
- Participate in technical discussions, design reviews, and mentor team members as needed.
Required Skills and Qualifications:
- Strong experience with Java 21 and Spring Boot in production systems.
- Solid understanding of REST APIs and hands-on experience gRPC.
- Hands-on experience with OAuth2/OIDC, JWT, and backend security fundamentals.
- Proficiency with PostgreSQL and JPA/Hibernate.
- Practical experience with Docker and Kubernetes (deployments, debugging).
- Knowledge of WebSockets or streaming APIs.
- Ability to troubleshoot distributed systems and diagnose performance issues.
- Effective communication skills and resilience in fast-paced, multicultural teams.
- Advanced English proficiency.
Soft Skills:
- Proactive ownership of tasks with a mindset for continuous improvement.
- Strong communication skills across technical and non-technical audiences.
- Comfortable with context switching and balancing priorities.
- Collaborative team player who values shared success.
- Ability to adapt to ambiguity and shifting requirements.
Nice-to-Have Skills:
- Experience with Kafka or other event-driven technologies.
- Proficiency in NoSQL databases.
- Familiarity with GitOps (ArgoCD) and Tekton pipelines.
- Exposure to GCP services (GKE, IAM, Cloud Logging/Monitoring).
- Basic understanding of policy-based access control (OPA).
- Background in prototyping or integrating AI-driven automation.
If you are a seasoned backend developer looking to take on complex challenges in a dynamic environment, we invite you to apply and become a part of our diverse team!
#LI-THAI23
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!
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.
