Lead Java Developer

We are seeking a Lead Java Developer who will play a key role in shaping and evolving large-scale back-end platforms. You will be responsible for defining technical direction, building high-performance services, and supporting the growth of the engineering team through mentorship and technical leadership.

This position combines hands-on development with technical ownership and close collaboration with multiple business and engineering stakeholders. It is a great fit for someone who enjoys solving complex problems and building systems designed to scale.

What You Will Do

• Architect, implement, and maintain scalable back-end services and APIs using Java and the Spring ecosystem

• Take responsibility for back-end solutions from initial concept through production deployment and ongoing optimization

• Guide architectural and technical decisions to ensure performance, stability, and security at scale

• Continuously improve system efficiency, fault tolerance, and scalability

• Work closely with cross-functional teams including Product, Data, DevOps, and Marketing to align technical solutions with business goals

• Establish strong observability practices by implementing logging, metrics, and alerting solutions

• Set and promote high engineering standards, including code quality, testing strategies, and technical documentation

• Coach and support other developers, contributing to a culture of learning and technical excellence

What We’re Looking For

• Degree in Computer Science or equivalent professional experience

• At least 5 years of hands-on Java development experience

• Demonstrated experience building distributed systems and microservice-based architectures

• Advanced knowledge of Spring Framework and Spring Boot

• Deep understanding of concurrent programming, scalability patterns, and performance tuning

• Experience developing and deploying applications in containerized environments (Docker, Kubernetes)

• Familiarity with CI/CD pipelines and modern software delivery practices

• Experience designing applications to run efficiently on Kubernetes, with attention to resource usage and scaling behavior

• Practical experience analyzing and improving application performance using profiling and monitoring tools

• Strong communication skills and the ability to provide technical leadership across teams

Additional Skills (Nice to Have)

• Experience in programmatic advertising technologies such as DSPs, SSPs, or ad exchanges

• Knowledge of both relational and NoSQL databases (e.g. MongoDB, Couchbase)

• Exposure to reactive programming and frameworks like Spring WebFlux

• Hands-on experience with monitoring and alerting platforms such as Prometheus, Grafana, or Kibana