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Kotlin Back-End Developer
Job Location:
Monthly Salary:
Not provided by the employer
Monthly Salary:
Experience Required:
4-5years
Experience Required:
Posted:
21 August 2026 (19 hours ago)
Posted:
Application Deadline:
18 November 2026
Application Deadline:
Vacancies:
1 Vacancy
Vacancies:
Job Summary
Our Client is a fast-growing HealthTech company building the Arab worlds first unified health-data platform one Arabic-first dashboard that brings together users sleep nutrition activity and heart data from 15 smart devices powered by an AI health assistant.
Were looking for a hands-on Back-End Developer to work part-time and fully remote on the core services that ingest process and serve millions of health-data points. Youll own backend features end-to-end in a modern Kotlin Spring Boot stack working closely with the mobile team on clean well-documented APIs.
Were looking for a hands-on Back-End Developer to work part-time and fully remote on the core services that ingest process and serve millions of health-data points. Youll own backend features end-to-end in a modern Kotlin Spring Boot stack working closely with the mobile team on clean well-documented APIs.
Key Responsibilities:
- Design build and maintain backend services in Kotlin 2.x and Spring Boot 3.x
- Model and optimize data across PostgreSQL 17 (transactional) and ClickHouse (analytics/OLAP)
- Build and document clean versioned REST APIs consumed by the iOS and Android apps
- Integrate and normalize data from third-party wearable/device APIs
- Design efficient data flows between the transactional store and the analytics layer
- Ensure security encryption and privacy standards for sensitive health data
- Write tests participate in code reviews and keep technical documentation current
Requirements
- Proven experience shipping production backend systems in Kotlin
- Strong hands-on Spring Boot 3.x experience
- Solid PostgreSQL skills (schema design indexing query optimization)
- Working experience with ClickHouse or a comparable OLAP/columnar store
- Comfortable designing REST APIs and working with JSON at scale
- Self-directed and reliable in a remote part-time setup
- Good written English; Arabic is a plus
Skills:
- Kotlin Spring Boot REST API design PostgreSQL ClickHouse
- Coroutines/concurrency Gradle Docker CI/CD Git
- Data modeling performance tuning secure data handling
Benefits
- 100% remote flexible part-time hours
- Modern greenfield stack with real ownership
- High-impact product in a fast-scaling regional HealthTech
