Desenvolvedor Java Junior jobs in Brazil

Are you looking for an exciting opportunity to join a fast-growing fintech company that is revolutionizing the payment industry? Do you want to work with cutting‑edge technologies and a talented team of professionals? If yes, then Wallester AS might be the perfect place for you!

Wallester AS is an Estonian licensed payment service provider that develops financial digital technology and issues VISA cards. Since 2018, we have been an official Visa partner and Visa FinTech Fast Track Member issuing physical and virtual cards of any type: debit cards, credit cards, prepaid cards, and cards for business. Our distinctive advantage is a unique REST API created by our in‑house development team. Easily integrated with any platform, it allows you to launch your card program in no time!

We are looking for passionate and driven individuals who share our vision of creating truly high‑quality and profitable products for our clients.

As a Software Engineer at Wallester, you will play a key role in developing and maintaining our unique platform that enables our clients to launch their card programs in no time. You will be involved in all stages of the software development life cycle, from planning and analysis to deployment and maintenance. You will also have the opportunity to work with cutting‑edge technologies and a talented team of professionals.

If you are passionate about FinTech and payment solutions, have excellent technical skills, and enjoy working in a fast‑paced environment, then this role is for you!

We are seeking Software Engineering specialists to join Wallester’s headquarters in Tallinn (Golden Gate, Rotermanni Quarter) and our Latvian office in Riga (Jupiter Tower).

• Golang
• gRPC
• Protocol Buffers
• PostgreSQL
• Redis
• JSON REST API
• Docker
• Kubernetes
• Linkerd
• AWS infrastructure
• Microservice Architecture

• Participate in the whole software development life cycle
• Write high‑quality, efficient, and maintainable code that follows company standards
• Collaborate with Engineers across the company to build new features
• Actively contribute to adopting best practices in Software Engineering, improvement of processes, and team culture

• 3+ years of experience in software development using any OOP language (C# / Java / PHP / JavaScript / etc.)
• Experience with microservice architecture, REST API, RPC, PostgreSQL, and Docker
• You have good English and communication skills
• Experience working with agile software development teams
• Problem‑solving skills and ability to work in a fast‑paced environment
• Ability to work independently and proactively

• Experience in working with cloud platforms (AWS / GCP / Azure)
• Skilled in applying CI / CD infrastructure for software development and delivery
• Experience in test methodologies and frameworks
• Experience in financial software development
• Knowledge of security best practices and standards (OWASP, PCI DSS)

Also, a spark in the eyes is always a plus!

• Competitive salary
• Development and career opportunities
• Medical Insurance upon the completion of the probationary period

• A modern office in the city center (Tallinn : Golden Gate and Riga : Jupiter Tower).
• A chance to work as part of a highly motivated and talented team
• Referral program
• Stebby
• Team buildings and Company Events
• Free parking