
We are seeking a Java Engineer (6- 10 year's experience) in Bangalore/Gurgaon to drive modernization of enterprise financial platforms. You will lead cloud migration (AWS), integrate AI, and develop high-performance backend systems focusing on cleared derivatives, risk management, and margin optimization.
•Experience: 6 to 10 Years
•Location: Bangalore / Gurgaon
•Mode of Work: Full-Time
•Key Responsibilities
Backend Development: Build high-performance, low-latency services using Java 8/11/17+ and Spring Boot.
•Cloud Migration: Execute on premises to AWS cloud migration initiatives.
•Derivatives Focus: Implement complex business logic for cleared derivatives, covering trade matching and regulatory reporting.
•AI Integration: Implement AI pipelines for automated financial data processing.
•Architecture: Utilize AWS services (Lambda, ECS, S3, RDS, Kafka).
Required Technical Skills
•Java & Spring: Advanced Core Java, Spring Boot, Spring Security, JPA/Hibernate.
•AWS: Strong experience in AWS cloud infrastructure and security.
•Databases: Expert-level SQL (Oracle/PostgreSQL).
•DevOps: Experience with Docker, Kubernetes, and migration patterns.
Must-Have Qualifications
•Domain expertise in Cleared Derivatives (Futures & Options, Clearing Houses).
•Experience designing scalable microservices.
Nice-to-Have Skills
•Experience with Generative AI or Agent builders.
•Knowledge of Infrastructure as Code (Terraform).
Soft Skills
•Strong analytical, problem-solving, and communication skills.

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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About the Role
We are hiring for our client for the role of Java Developer. The ideal candidate should have strong expertise in backend development, Java-based microservices architecture, and REST API development. This role involves designing, developing, debugging, and optimizing enterprise-grade applications in a collaborative environment.
Key Details
- Location: PAN India (Bangalore Preferred)
- Work Mode: Hybrid
- Experience: 8–12 years
- Compensation: ₹15 LPA – ₹25 LPA
- Open Positions: 10
- Notice Period: Immediate to 15 days preferred
Key Responsibilities
- Develop backend services and microservices using Java
- Design and build REST APIs for enterprise applications
- Participate in application architecture, design, and development activities
- Debug, test, and optimize application performance
- Support deployment, maintenance, and production issue resolution
- Collaborate with cross-functional teams to deliver scalable solutions
- Ensure code quality, best practices, and performance optimization
Required Skills
- Strong hands-on experience in Java development
- Experience with backend services and microservices architecture
- Expertise in REST API development
- Strong debugging and performance optimization skills
- Good understanding of application deployment and maintenance
- Strong problem-solving and collaboration abilities
Eligibility Criteria
- Candidates available within 0–15 days preferred
- Strong alignment with the requirement
Primary Responsibilities:
Developer for IT Regulatory team, work with the development manager and key stakeholders to understand business requirements and develop moderately complex technical solutions.
Work collaboratively with the team to support existing functionality and build, implement, and support new solutions.
Draft and review technical diagrams, specifications documents and required project documentation.
Conduct code reviews of other developers.
Share experience and knowledge with the team to improve productivity & delivery timelines.
Continuously seek ways to improve our existing architecture, advises on complex code deficiencies, provides systemic proposals, and promote efficiencies where necessary.
Job Requirements:
Undergraduate degree in computer science or technology discipline
5+ years of Core Java Development experience & Integration Technologies (Spring, MQ, JSON, XML, SOAP).
Experience writing SQL queries (DB2, Snowflake).
Crystal reports/Excel Writer/Aspose.
Working knowledge of scripting languages (Perl, Unix Shell, Python).
Experience working with source code repositories (Bitbucket, GitHub)
JavaScript, Angular is a plus.
Sound understanding of Object-Oriented Design & Programming, Enterprise Architecture Patterns and GoF design.
A flexible, tenacious team player with a positive attitude and strong interpersonal skills, able to build collaborative relationships with globally distributed teams.
Strong analytical and design skills with attention to detail.
Excellent communication (verbal and written) skills; Able to communicate with different stakeholders effectively.
Experience developing technical solutions in Investment Management industry.
Understanding of portfolio accounting concepts and trade lifecycle
Good to have knowledge of AWS, prometheus, kubernetes and other monitoring tools.
Min exp 1 year. Must be from Pune since we are not able to provide relocation.
- Backend development along with team management
- Hands on experience in product development
- Preferred candidates from Fintech and Banking sectors
- Exp in Python / Java slong with databases like MySQL, NoSQL, etc
- Knowledge of Agile methodology
Job Responsibilities:
- Collaborate with other senior engineers, and management, to achieve optimal application architecture and design
- Develop efficient, secure applications, peer-review code, and document solutions within an agile-blended software environment
- Communicate proactively with team members, infrastructure, security, and quality assurance to continuously improve processes and engineering excellence
- Guide and train other developers in backend technology
- Ability to work independently and as a member of a team spread over different time zones
Skills:
- Understanding of object oriented programming skills and data structures
- At least 6 years of hands-on development in Java, Springboot & Hibernate
- Should have experience in Java Multithreading, microservices
- Experience with developing web applications
- Expertise with in Core Java (Collections, Exception handling)
- Experience with J2ee( Servlets, JSPs)
- Experience with all well known database technology and object-relational mapping, experience with databases (Mysql, Mssql)
- Knowledge and development background in web-services/REST, AJAX, JSON, and XML
- Experience with Windows and Linux based environments
- Experience with Maven and GIT tools
- Understanding of UI technologies (HTML, CSS, Javascript libraries) would be a plus
- Good to have – AWS experience and Fintech domain experience
- Awareness of Jenkins will be a value add
If you are looking for a change this is what we can promise you:
You will have challenging problems to solve
You will have flexibility and autonomy to solve problems and deliver solutions
We will provide a highly collaborative environment with skilled and super friendly teammates
We will fully support you in developing software the right way
We won't burden you with useless policies and procedures
We will provide you the tools you need to do your job right
If that sounds attractive please apply! We'd love to talk to you.
Here are some more details about the position:
You will be hands-on writing code, unit tests, and performing peer code reviews. You will work with a project manager, software development engineers, user experience and interface designers, quality assurance engineers and customer stakeholders to deliver high quality, scalable and maintainable software solutions.
Required Qualifications
4+ years experience developing web applications using PHP
Ability to work effectively with offshore and nearshore team members
Experience performing peer code reviews
Experience writing unit tests
Experience with Git and merge conflict resolution
JavaScript and HTML, CSS
Ajax, Restful APIs and JSON
SQL (MSSQL, MySQL or similar)
Scalable Architectural Patterns
API Integrations
Asynchronous Processes and Multithreading
Desired Qualifications
5+ year of experience developing web applications.
Experience in Codeigniter PHP framework
Experience with React and Flux
frameworks like Angular, React, Bootstrap, Ember or similar
Experience working with offshore and nearshore development teams.
HTML 5 and CSS 3
Caching Technologies
Cloud Platforms (AWS, Azure, or Heroku)
Serverless technologies
IoC / Dependency Injection
Continuous Integration
Continuous delivery
Git
SourceTree and Bitbucket
Scrum
Project management software - Jira, Rally or similar
Virtual Machines
Postman
- Design and develop features using Java, Spring, and Hibernate
- Ability to design database schema, develop views and stored procedures
- Maintain existing software systems by identifying and
Correcting software defects.
- Review and analyse business requirements and provide technical software defects.
Key Skills:
- Good understanding of algorithms, data structures & design patterns
- Thorough understanding of core Java, Spring framework
- Experience with Spring Boot to bootstrap applications
- Good understanding and working experience with RESTful web services
- Knowledge of modern authorization mechanisms, such as JSON Web Token and OAuth2 - Familiarity with code versioning tools such as Git, etc.
- Self-starter who can think outside of the box, and come up with a solution to resolve and mitigate complex problems
- Experience working in an Agile development environment using methodologies like Scrum and tools like JIRA, Confluence, etc Experience.Comfortable with MYSQL,Mongodb
Role & Responsibilities:
- Design and develop features using Java, Spring, and Hibernate
- Ability to design database schema, develop views and stored procedures
- Maintain existing software systems by identifying and correcting software defects
- Review and analyze business requirements and provide technical feasibility and estimates
- 2-4 years of work experience developing Java-based backend applications. Around 1 year of work experience e using Spring Boot, Spring Cloud and Microservices.
Position: Java developer
Experience: 4-5 years
Notice period- immediate to 7 days
• Core Java, J2EE, Spring, Spring Boot, Angular, JavaScript, JQuery, Bootstrap, CSS3, HTML, Ajax, JSON, SQL, PLSQL, Web Services, Restful API’s
• Having good experience in writing complex database queries.
• Should be a quick learner and keen on learning new technologies
• Good knowledge in Object Oriented Programming Principles, Design Patterns and Software Architecture
• Experience with building SaaS-based web applications
• Ability to work as part of a team and offer new ideas
• Working knowledge of GIT version control system
• Product development background.
Roles and Responsibilities
• Code, develop, design and architect features related to the existing application. We
expect you to own modules end to end and take pride in the work products you
ship.
• Lead from the front, when it comes to delivering high quality work products. Serve
as a mentor to the team members
• Create and define performance metrics. Ideate, innovate and hack through the
existing systems to improve performance.
• Perform code reviews, set coding practices and guidelines within the team.
• Make sense of the product specs, be nimble in getting the issues resolved. Be a
thought leader.
Critical Functional Skills:
• Solid understanding and knowledge of Java/C/C++. You should understand the
concepts of multithreading, I/O, messaging, instrumentation etc and their
implementation in Java/Any other Object-Oriented Language.
• Proficiency in the implementation of algorithms and the use of advanced data
structures to solve problems in computing. A solid foundation in the principles of
computer science is desired.
• Ability to write clean, modular, and loosely coupled code by the use of design
patterns.
• He/She should be able to break down and architect complex software systems. For
example- Build
• Cars Availability Engine for Ola.
• Strong decision-making ability
• Deep expertise in at least one programming language & tech stack.
• Substantial experience in building complex and scalable solutions.
• Strong object-oriented design skills, ability to apply design patterns, and an uncanny
ability to design intuitive module and class-level interfaces
• The ability to do deep problem solving and build elegant, maintainable solutions to
complex problems.
• Experience leading multi-engineer projects and mentoring junior engineers
• Experience with full life cycle development in any programming language on a Linux
platform
• Comprehensive operational experience including, optimizations, deployments and
tuning servers like apache/mysql/tomcat/solr
• Prior experience in working with Agile software methodologies (XP, Scrum), TDD,
and Continuous Integration(CI/CD) a plus.
• Experience in building data-driven web application design and development is a plus
• Expert level experience in building a scalable, large and complex business
application.
Experience Required:
• Typically with an experience of 5+ years of development experience in a product
firm.
• Must have lead, designed, architected and delivered at least 1 project in his previous
assignments independently.
Minimum Qualifications Required:
• Btech/MS from a reputed Institute
• Deep expertise with any or combination programming languages: Java, C++, C#,
Ruby, Scala,
• Go any object-oriented high-level proprietary or open-source language with strong
programming constructs. We are not skill-specific but go by strength in
competencies
• Machine coding
• Single machine in-memory program
• Need a working code with functionality
• Readable and well-designed code with right abstractions, separation of concerns,
• right design patterns
• Performant code with concurrency and efficient data structures
• Write test cases covering the happy path and edge cases
• Problem Solving
• Choose the right combination of data structures to solve the problem
• Identify most edge cases for the problem
• Identify opportunities of parallelism: utilizes multi-core solutions where applicable
• Design & Architecture
• Distributed systems design and system interaction
• Identify API signatures
• LLD with class design
• Solve for performance & availability
1 Bachelor’s / Masters’ degree from a reputed university
2 Technical certifications in Java is a good to have. Other programming certifications and
experience e.g., Python or C# is a plus.
3 Years of experience: 4-7 years for Senior Developer and 0-3 years for Developer
Technical Competencies
1 Hands on experience in writing software applications, in particular server side and backend
applications. Web development expertise is a plus.
2 Software development expertise
• Server technologies – Java based application development. Familiarity with various
Java based development frameworks. Spring development experience is a plus.
• Database technologies - Knowledge and familiarity with SQL. Experience with MySQL
as well as NoSQL databases such as MongoDB is a plus.
• Cloud technologies – Experience in building applications on cloud platforms,
especially on MS Azure, including familiarity with Cloud APIs, is a plus.
• Web technologies – Experience building web applications with JavaScript, CSS,
HTML, and expertise with frameworks such as Angular, Express, Node and others
3 Experience in agile software development and development in sprints









