WFH senior full-stack mobile developer jobs

We’re looking for a highly motivated SDE 2 – Backend Engineer to join our core engineering team. In this role, you will be a key player in designing, developing, and optimizing high-performance backend systems. You’ll work closely with cross-functional teams to build scalable, secure, and reliable services that power our core platforms. This is a high-impact opportunity to shape technology in a startup-like, fast-paced environment.

Responsibilities:

• System Design & Development: Architect and implement clean, modular, and scalable backend services using Java, Spring Boot, and modern microservice principles.
• Database Management: Design efficient database schemas and write optimized queries for RDS (MySQL/PostgreSQL) and, optionally, NoSQL databases like Elasticsearch, MongoDB, or DynamoDB.
• Messaging & Event-Driven Systems: Integrate Kafka or RabbitMQ to build robust and loosely-coupled event-driven architectures.
• Caching Strategies: Leverage Redis or Memcached to implement high-performance caching strategies for scalable and low-latency systems.
• Distributed Systems: Contribute to the design of distributed, resilient systems that can handle high throughput and concurrency.
• Performance Optimization: Profile and tune backend performance across databases, APIs, and infrastructure.
• Testing & Code Quality: Write clean, maintainable code with comprehensive unit and integration tests to ensure reliability and stability.
• Startup Environment: Thrive in an agile, collaborative environment and take ownership of end-to-end feature delivery.

Requirements:

• 3+ years of hands-on backend development experience in a product-based company (preferably SaaS).
• Strong expertise in Java and Spring Boot ecosystem.
• Solid understanding of Relational Databases (RDS, MySQL, PostgreSQL).
• Experience with Apache Kafka or RabbitMQ for building asynchronous, decoupled systems.
• Proficiency with Redis or Memcached for performance tuning and data caching.
• Strong problem-solving skills and ability to work independently in a fast-paced, startup-like environment.
• Passion for writing clean, readable, and efficient code with strong testing discipline.

Additional Skills:

• Prior experience working in a high-growth startup for 2+ years.
• Exposure to AI/ML-integrated solutions or interest in working alongside data science teams.
• Experience with infrastructure automation, monitoring tools, or observability stacks.
• Familiarity with NoSQL systems like Elasticsearch, MongoDB, or DynamoDB.
• Knowledge of CI/CD pipelines, Git, and modern development practices.
• Hands-on experience in containerization technologies: Docker, Kubernetes, or AWS ECS/GKE.

SDET (Automation/Java /Groovy)
INDIA - REMOTE - 5 HOURS EST OVERLAP
CONTRACT
CANDIDATE OWN LAPTOP FOR WORK
A U.S.-based company developing innovative mobile technology and data science solutions focused on financial services in emerging markets is looking for an Automation SDET . The selected candidate will be responsible for developing and maintaining test automation suites to expand test coverage to all backend APIs, and collaborating with different subject matter experts across functions. The company's state-of-the-art digital financial services and tools help customers borrow, save, and grow organically. The company has secured $368mn+ in funding so far. This position requires significant overlap with the U.S./Kenyan time zones.

Job Requirements

• 4+ years of experience as a SDET engineer building test tools and frameworks using 
• 3+ years of experience with Groovy and Java
• Experience with Jenkins, or similar CI-CD tools, Linux/Mac OSX for either backend or frontend services
• Experience with BDD testing paradigm and one of the Behavior Driven Testing frameworks such as Spock, JBehave, or Cucumber
• Excellent written and oral English communication skills
  

Bonus Skills:

• Experience with Kotlin or Scala 

Offer Details:

• Contractor position (no medical/paid leave)
• Full-time dedication (40 hours/week)
• 5-hour overlap with U.S./Kenyan time zones

Interview Process:

• 2-step cultural/technical interview