Job Title: [Job - 28140] Senior Java Developer, Colombia

Company Name: CI&T

Job Details: RemoteFull,Time

Job Url: https://hiring.cafe/viewjob/0faaug16iz4if0nn

Job Description: Posted 3d ago[Job - 28140] Senior Java Developer, Colombia@ CI&TView All JobsWebsiteColombia or Brazil or IndiaRemoteFull TimeResponsibilities:design backend, build APIs, test and troubleshootRequirements Summary:Senior backend developer with Java 21, Spring Boot, REST/gRPC, security (OAuth2/OIDC, JWT), PostgreSQL/JPA, Docker/Kubernetes; strong English in a multicultural team.Technical Tools Mentioned:Java, Spring Boot, Hawkbit, REST, gRPC, OAuth2/OIDC, JWT, PostgreSQL, JPA/Hibernate, Docker, Kubernetes, Tekton, Jenkins, ArgoCD, GitOps, Kafka, NoSQL, GCP (GKE), OPA, WebSockets
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 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 familiarity with gRPC concepts.
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).
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).
Knowledge of WebSockets or streaming APIs.
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 include:- Premium Healthcare- Meal voucher- Maternity and Parental leaves- Mobile services subsidy- Sick pay-Life insurance- CI&T University   - Colombian Holidays- Paid VacationsAnd many others. Collaboration is our superpower, diversity unites us, and excellence is our standard. We value diverse identities and life experiences, fostering a diverse, inclusive, and safe work environment. We encourage applications from diverse and underrepresented groups to our job positions.