[Job - 32652] Mid/Senior Java Developer, Brazil

CI&T, Brazil

The role

This is not greenfield. You'll inherit real services with real history, learn them from the people who built them.

What you will do

Own a portfolio of forked backend services (mostly Java/Spring Boot): bug fixes, small changes, and day-to-day stability.
Drive knowledge transfer with the original team through shadowing sessions. Ask the right questions, map dependencies, and turn tacit knowledge into something written.
Build service context documentation in three layers (business rules, application behavior, operations) following the client's template. This feeds both the human team and the AI-assisted development model the client already runs in production.

Nice to have

Experience with microservices at scale – especially the operational realities of running and debugging many services in production
Azure cloud services beyond DevOps (Service Bus, Blob Storage, Functions, etc.)
Familiarity with DDD (Domain-Driven Design) concepts and service boundary thinking
Go — a secondary language used in some newer services
Understanding of internationalization and global commerce (multi-currency, multi-region systems)
Performance optimization experience in high-throughput environments

What Makes This Role Different

You'll be joining at a moment that requires adaptability over idealism — the goal isn't to redesign what's working, it's to understand it deeply, keep it running, and incrementally move it toward a cleaner state. The team values engineers who can hold two things at once: operational discipline today and architectural vision for tomorrow.

If you've ever had to inherit complex legacy systems, win trust through reliability, and earn the space to improve things over time — this will feel familiar in the best way.

Seniority Levels

We're open to Mid-Level and Senior profiles. Both levels are hands-on: everyone on this team writes code, fixes bugs, and takes on-call shifts. The difference is scope and autonomy.

Mid-Level: Delivers fixes and changes independently on well-understood services, with guidance on the more complex ones. Strong Java/Spring Boot fundamentals and solid microservices concepts. Takes part in incident response alongside senior engineers. Learns a complex domain fast through shadowing and documentation, and writes down what they learn.
Senior: Delivers the hardest changes and fixes, especially on critical flows such as orders, pricing and payments. Leads incident resolution end to end, from diagnosis to fix in production. Drives knowledge transfer sessions with the outgoing team and turns what comes out of them into documentation and service context. Spots systemic risks such as hidden dependencies, shared resources and fragile integrations. Sets the quality bar for the team through code reviews, tests and standards, mostly by example.

[Job - 32652] Mid/Senior Java Developer, Brazil

The role

What you will do

[Job - 32652] Mid/Senior Java Developer, Brazil

The role

What you will do

What you need

Nice to have

What Makes This Role Different

Seniority Levels

Pay and benefits

About CI&T

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Interview questions

CI&T