Senior Java Developer

This position is ON-SITE Working in the office 5 days / week.

IMMEDIATE START preferred

Hands-ON Developer with 8+ years experience for a SENIOR role - mentoring our Development Team.

Previous Applicants need not reapply

You'll be well placed in our dynamic and friendly Development Team.

Situated in the prestigious Silver Utopia Building, Chakala,

Andheri East, Mumbai – 400099, Maharashtra

You will make significant contributions to the mobile payments industry by bringing engineering excellence in innovating new features and functions in customer centric applications.

You will analyse product requirements, design implementations, and participate in integration testing.

You will be part of a very innovative, dedicated, and high-performance team and need to match their level of excellence and thoroughness in delivering world-class banking applications.

Requirements of the position

The incumbent is expected to:

• Always consider Ziksu's objectives first when undertaking all duties.
• Communicate effectively, model integrity and respect in all interactions.
• Operate within Ziksu's framework, policies and procedures and ensure effective transparency and accountability in all activity.
• Collaborate with staff in other departments to achieve common goals and best practice.
• Facilitate business improvements as appropriate.
• Demonstrate analytical problem-solving skills, customer focus and alignment with Ziksu's strategic objectives.
• Support organisational change and continuous improvement by actively contributing to achieve Ziksu's vision, mission, and priorities.
• Comply with the requirements of Ziksu's Code of Conduct and all relevant legislation including EEO, OSH and Records Management.

Role specific responsibilities

• Design, develop, and maintain high-performance, secure backend applications using Java and Spring Boot.
• Build and manage RESTful APIs and microservices for fintech and payment systems, ensuring scalability, reliability, and compliance.
• Lead the design of system architecture and database schema for complex, data-driven applications.
• Continuously optimize code and infrastructure for performance, scalability, maintainability, and cost-efficiency.
• Collaborate cross-functionally with frontend, DevOps, QA, UI/UX, and product teams to ensure smooth integration and delivery.
• Oversee integration with third-party services (payment gateways, banks, KYC/AML APIs), including sandbox/live environment testing and compliance validation.
• Lead security planning, ensure adherence to industry security standards (OWASP, PCI-DSS), and participate in code audits and threat modelling.
• Perform and oversee code reviews, ensuring best practices, code quality, maintainability, and knowledge sharing across the team.
• Take ownership of CI/CD pipeline setup and maintenance, ensuring fast, safe, and automated release cycles.
• Proactively monitor production systems, manage logs, and coordinate incident responses to minimize downtime and improve system observability.
• Mentor junior developers, delegate tasks, and assist in managing timelines, technical blockers, and quality deliverables.
• Document and maintain detailed technical specifications including system architecture, design decisions, API contracts, and technical how-to's.

Required Skills

• 7–10 years of strong experience with Java, Spring Boot, and REST API development.
• Proficiency with Oracle DB, MySQL, or PostgreSQL, including complex queries and database performance optimization.
• Deep understanding of backend architecture, design patterns, data structures, and algorithms.
• Strong hands-on experience with Docker, Jenkins, and modern CI/CD pipelines; Kubernetes experience is a plus.
• Experience in cloud-based deployments, ideally on Oracle Cloud or similar platforms (AWS, Azure, GCP).
• Expertise in Git, version control workflows, and collaboration tools.
• Proven experience in debugging, profiling, and performance tuning of backend applications.
• Knowledge of security best practices, encryption, authentication/authorization flows, and regulatory compliance in fintech.
• Practical understanding of Agile methodologies, including Scrum or Kanban.
• Strong written and verbal communication skills, with the ability to write technical documentation and communicate effectively with stakeholders.
• Bonus: Exposure to test automation tools (e.g., Selenium, JUnit, Postman) and experience with DevSecOps practices.

Qualifications & experience:

• Bachelor's / master's degree in engineering (Computer Science, Computer Engineering or related)
• Minimum 7–10 years of experience in Java programming

You MUST ANSWER the QUESTIONS attached and PROVIDE YOUR RESUME. Please note: Preference will be given to availability for an IMMEDIATE START (within 7 Days).

For any queries, please reach out to work@ziksu.com