L4 Developer

Role overview We are looking for a skilled Software Engineer to design, build, and maintain resilient components of our Instant Payment System.

This role is focused on delivering high-quality fixes, implementing new features, and improving system reliability.

You will work directly at the code level to ensure that our payment systems remain secure, compliant, and performant under high load.

Key Responsibilities Provide expert-level troubleshooting, debugging, and optimization for complex Production and Pre-production technical issues.

Perform root cause analysis of production incidents and implement long-term corrective actions.

Implement robust, secure and scalable fixes and add enhancements in the codebase.

Collaborate with clients, architects, business analysts, and cross-functional teams to gather requirements and deliver tailored solutions.

Lead code reviews, enforce best practices, and ensure adherence to coding standards.

Support the deployment and release process, including CI/CD pipeline improvements.

Mentor and provide technical guidance to junior and mid-level developers.

Participating in On-call Support following a rotation schedule Write unit, integration, and performance tests to guarantee software quality.

Contribute to architectural discussions for improving scalability and fault tolerance.

Required Skills and Qualifications Strong programming skills in Java backend language, with strong expertise in Java SE and EE.

Front-end development (JavaScript, Angular, React) skills are a big advantage.

Proven experience (5+ years) with debugging and troubleshooting complex financial or payment systems.

Proficiency in frameworks such as Spring (Core, Boot, MVC), Hibernate, and related technologies.

Solid understanding of RESTful APIs, microservices, and integration patterns.

Hands-on experience with relational databases (e.g., Oracle, MySQL, PostgreSQL) and SQL optimization.

Hands-on experience with CI/CD pipelines (e.g., Jenkins, Git, Maven), Git, and containerization (Docker/Kubernetes).

Strong knowledge with observability tools (e.g., ELK, Splunk, Dynatrace).

Ability to work in On-call rotations and handle high-pressure production issues.

Excellent problem-solving, communication, and client-facing skills.

Nice to Have Experience with cloud platforms (AWS, Azure, or GCP).

Knowledge of containerization technologies (Docker, Kubernetes).