Backend Developer

Osf Digital; Diadema; Presencial; BRL 120.000 - 160.000; Tempo integral

Resumo da oferta

A leading digital transformation company in São Paulo is seeking a Back-end Developer to join its Conversion Squad. The candidate will primarily work with Kotlin and Spring Boot to develop scalable solutions and collaborate with cross-functional teams. Responsibilities include developing microservices, writing automated tests, and enhancing system functionality. The ideal candidate will have strong communication skills and a proactive approach. Join an inclusive environment that values diversity and continuous improvement.

Qualificações

• Proficient in Kotlin and Spring Boot for Back-end development.
• Experience in developing microservices and REST APIs.
• Ability to write and maintain automated tests.

Responsabilidades

• Develop Back-end solutions focused on functionality and performance.
• Build services aligned with business strategy and product initiatives.
• Create automated tests following the testing pyramid.

Conhecimentos

Proficiency in Kotlin and Spring Boot

Solid experience with microservices and REST API architecture

Strong knowledge of relational databases

Experience with automated testing and understanding of the testing pyramid

Experience with Java, Python, Ruby, or Go

Familiarity with agile methodologies (Scrum, Kanban)

Descrição da oferta de emprego

The professional will work primarily in the Conversion Squad, responsible for lead acquisition flows and marketing forms — a high‑impact and business‑critical area at Creditas. The main focus will be Back-end development using Kotlin + Spring Boot.

The developer may also support small tasks in Front-end / BFF applications built with Next.js and Node.js, collaborating closely with product and engineering teams.

Responsibilities

• Develop Back-end solutions ensuring functionality, maintainability, performance, and adherence to engineering best practices.
• Build services aligned with business strategy, OKRs, and product initiatives.
• Implement and maintain reliable and scalable microservices and REST APIs.
• Create automated tests following the testing pyramid.
• Work in a collaborative environment with pair programming and a strong feedback culture.
• Communicate clearly and proactively in daily meetings, agile ceremonies, and when raising blockers.
• Contribute to continuous improvement within the Conversion Squad projects.

Competencies

• Strong and active communication — especially during daily meetings.
• Proactive attitude in raising issues, proposing solutions, and seeking support when needed.
• Ability to collaborate effectively with cross‑functional teams (product, design, engineering).
• Organization and strong sense of ownership over deliverables.

Hard Skills — Mandatory (Must Have) :

• Proficiency in Kotlin and Spring Boot (top priority).
• Solid experience with microservices and REST API architecture.
• Strong knowledge of relational databases.
• Experience with automated testing and understanding of the testing pyramid.
• Experience with at least one other Back-end language : Java, Python, Ruby, Go (Kotlin is mandatory).
• Familiarity with agile methodologies (Scrum, Kanban).

Nice to Have :

• Experience with modern Front-end frameworks (React, Next.js, Angular, Vue.js).
• Knowledge of BFF using Node.js.
• Experience with messaging tools (Kafka, AWS SQS, etc.).
• Knowledge of Clean Code and Design Patterns.

Skill Set

• Kotlin + Spring Boot
• Microservices & Distributed Architecture
• REST APIs
• Relational Databases

Automated Testing

OSF Digital is proud to be an equal opportunity employer, where you can bring your whole self to work. Join an inclusive and passionate community of professionals who help bring about digital transformation for businesses around the world. At OSF Digital, we welcome all individuals and do not discriminate on the basis of gender identity and expression, race, ethnicity, disability, sexual orientation, color, religion, national origin, age, marital status, or any other protected category in any of the jurisdictions in which we conduct business.