Senior Java Developer, Colombia

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 with 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!

  Our benefits include:

  • Premium Healthcare
  • Meal voucher
  • Maternity and Parental leaves
  • Mobile services subsidy
  • Sick pay – Life insurance
  • CI&T University
  • Colombian Holidays
  • Paid Vacations

  And 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.