Senior Java Developer

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

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