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
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