
Senior Java Platform Engineer
Location: Bangalore / Mumbai (Hybrid)
Company: Wissen Technology
Experience: 10+ Years
About the Role
Wissen Technology is looking for a highly experienced Senior Java Platform Engineer to join our engineering team. In this role, you will design, develop, and maintain scalable, high-performance platform services that power mission-critical financial applications.
The ideal candidate will have deep expertise in Core Java, platform engineering, REST API development, and extensive experience working within the Financial Services domain.
Key Responsibilities
Platform Design & Development
- Design, develop, and maintain scalable, high-performance, and reliable platform services using Core Java.
- Build, integrate, and support RESTful APIs and web services.
- Write clean, maintainable, well-documented, and testable code.
- Participate in code reviews and promote engineering best practices.
- Contribute to architectural decisions and platform design initiatives.
Performance & Platform Engineering
- Optimize application performance, scalability, and reliability.
- Troubleshoot and resolve complex technical issues.
- Ensure platform security, availability, and operational excellence.
- Implement best practices for concurrency, multithreading, memory management, and performance tuning.
Data Management
- Work with both SQL and NoSQL databases.
- Design efficient data access and persistence strategies.
- Apply strong data modeling principles and database optimization techniques.
Financial Services Domain
- Develop solutions aligned with financial industry standards and regulatory requirements.
- Leverage a strong understanding of financial systems, products, and workflows.
- Ensure secure handling of sensitive financial data while maintaining compliance.
Automation & Workflow Management
- Utilize Python for scripting, automation, and operational tasks.
- Work with Apache Airflow (or similar workflow orchestration tools) to schedule and manage data pipelines.
Collaboration & Leadership
- Collaborate with Product Managers, Architects, QA Engineers, and cross-functional development teams.
- Communicate effectively with both technical and business stakeholders.
- Mentor junior engineers and contribute to the team's technical growth.
- Participate in Agile ceremonies and drive continuous improvement initiatives.
Required Qualifications
- Bachelor's or Master's degree in Computer Science, Engineering, or a related field.
- 10+ years of hands-on experience in Core Java development.
- Strong experience building and maintaining enterprise-scale platform services.
- Expertise in Object-Oriented Programming (OOP), design patterns, and software engineering principles.
- Proven experience designing and developing RESTful APIs.
- Deep understanding of concurrency, multithreading, memory management, and performance optimization.
- Hands-on experience with SQL and NoSQL databases.
- Significant experience within the Financial Services industry.
- Exposure to Python scripting and automation.
- Experience with Apache Airflow or similar workflow management tools.
- Strong analytical, problem-solving, and troubleshooting skills.
- Excellent communication and stakeholder management abilities.
- Experience working in Agile/Scrum environments.
Preferred Qualifications
- Experience with cloud platforms such as AWS, Azure, or GCP.
- Hands-on experience with Docker and Kubernetes.
- Experience with messaging technologies such as Kafka or RabbitMQ.
- Understanding of financial regulations, governance, and compliance requirements.
Why Join Wissen Technology?
- Work on mission-critical platforms for leading financial institutions.
- Gain exposure to modern engineering practices and cloud-native technologies.
- Be part of a collaborative, innovation-driven engineering culture.
- Enjoy a hybrid work model based in Bangalore or Mumbai.
- Accelerate your career with opportunities for continuous learning and growth.

About Wissen Technology
About
The Wissen Group was founded in the year 2000. Wissen Technology, a part of Wissen Group, was established in the year 2015. Wissen Technology is a specialized technology company that delivers high-end consulting for organizations in the Banking & Finance, Telecom, and Healthcare domains.
With offices in US, India, UK, Australia, Mexico, and Canada, we offer an array of services including Application Development, Artificial Intelligence & Machine Learning, Big Data & Analytics, Visualization & Business Intelligence, Robotic Process Automation, Cloud, Mobility, Agile & DevOps, Quality Assurance & Test Automation.
Leveraging our multi-site operations in the USA and India and availability of world-class infrastructure, we offer a combination of on-site, off-site and offshore service models. Our technical competencies, proactive management approach, proven methodologies, committed support and the ability to quickly react to urgent needs make us a valued partner for any kind of Digital Enablement Services, Managed Services, or Business Services.
We believe that the technology and thought leadership that we command in the industry is the direct result of the kind of people we have been able to attract, to form this organization (you are one of them!).
Our workforce consists of 1000+ highly skilled professionals, with leadership and senior management executives who have graduated from Ivy League Universities like MIT, Wharton, IITs, IIMs, and BITS and with rich work experience in some of the biggest companies in the world.
Wissen Technology has been certified as a Great Place to Work®. The technology and thought leadership that the company commands in the industry is the direct result of the kind of people Wissen has been able to attract. Wissen is committed to providing them the best possible opportunities and careers, which extends to providing the best possible experience and value to our clients.
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