
Wissen Technology is now hiring for a Java Developer
Location : Bangalore (The candidate must be based in Bangalore, as an in-person interview is a mandatory part of the selection process)
Notice Period: Immediate to Serving Notice Period & Up to 30 Days max
Skills: Hands-on experience in Core Java, Spring Boot, Microservices, Algorithms, Data Structure and SQL
Note: Bachelor's or Master's degree from a top-tier college or university is must.
Key Responsibilities:
- Design, develop, and test low-latency, high-volume client-facing applications.
- Develop and maintain enterprise-scale, n-tier applications for the investment banking/capital markets domain.
- Implement microservices-based solutions using Spring Boot and other modern frameworks.
- Work extensively with Core Java 5.0 and above, Spring Framework, and CXF
- Optimize applications for multi-threading and high-performance server-side development
- Collaborate with cross-functional teams to design and implement scalable, secure, and efficient solutions
- Work with RDBMS (preferably Sybase) to handle large-scale data processing.
- Develop and maintain applications on Unix/Linux environments
- Utilize enterprise application design patterns to build robust and scalable solutions.
- Troubleshoot and resolve complex technical issues while ensuring application stability and performance.
Required Skills & Experience:
- 1 to 6 years of hands-on experience in Java development
- Strong knowledge of microservices architecture and cloud-based deployment.
- Expertise in Spring Framework, Spring Boot, and CXF
- Experience in developing and optimizing applications for high-volume, multi-threaded environments
- Solid understanding of financial domain applications, sales, and trading platforms
- Proficiency in working with relational databases (Sybase preferred)
- Familiarity with Unix/Linux environments and shell scripting.
- Strong analytical, problem-solving, and communication skills.
- Ability to articulate and present design ideas effectively.
- Education: Bachelor's or Master's degree from a top-tier college or university is must.

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.
Connect with the team
Similar jobs
Job Title: Lead Web App Developer - Backend
Experience: 10–15 Years
Location: Bengaluru
Role Overview:
We are seeking an experienced Lead Web App Developer - Backend to design and maintain scalable, cloud-based backend systems. This role demands expertise in microservices, AWS, and backend technologies to deliver efficient and high-performing applications.
Key Responsibilities:
- Build and maintain scalable backend systems for cloud-based web applications.
- Develop microservices using AWS (Lambda, SQS, SNS) and databases (MySQL, NoSQL).
- Design and implement REST APIs for seamless communication between systems.
- Create containerized solutions with Docker for efficient deployment.
- Solve real-world problems with enterprise-class product designs.
- Contribute to key decisions on product and technology direction.
- Promote frameworks, standards, and new technologies within the team.
Required Skills:
- Experience: 10+ Years in backend development; 3+ Years in large-scale, microservices-based projects.
- Backend Technologies: Proficiency in Python, Node.js, and Java.
- Cloud Expertise: Strong experience with AWS services (Lambda, SQS, SNS).
- Database Skills: Expertise in MySQL and NoSQL databases.
- Microservices Architecture: Deep understanding of distributed systems and scalability.
- DevOps Tools: Hands-on experience with Docker.
- API Development: Proven expertise in designing and consuming REST APIs.
- Soft Skills: Excellent problem-solving and communication abilities.
Why Join Us?
- Work on impactful projects with real-world applications.
- Solve complex problems in a dynamic, fast-paced environment.
- Collaborate with a team of skilled professionals.
About the Role
We are looking for a Senior Backend Engineer to join our core engineering team and help build high-
throughput, low-latency services that power real-time trading at scale. What We’re Looking For
You are someone who has built backend systems in a regulated, high-stakes environment — ideally fintech, brokerage, payments, or banking. You think in terms of system reliability, data correctness, and operational
excellence. You take ownership of services end-to-end: from design and implementation through deployment, monitoring, and incident response. You communicate clearly, make pragmatic trade-offs, and hold yourself and
your peers to a high engineering bar. What You’ll Do
• Design, build, and own backend microservices for a real-time trading platform — from API contracts
through to production observability. • Work with databases, caches, and event-driven architectures to ensure high availability and data
consistency across distributed systems. • Build integrations with third-party financial services — clearing, settlement, identity verification, and
payment rails. • Define and enforce engineering standards — code reviews, testing strategies, API design conventions, and incident response processes. • Collaborate with product, design, and cross-functional teams to translate business requirements into
well-scoped technical deliverables. • Participate in on-call rotations and own production reliability for the services you build. • Mentor junior engineers and contribute to a culture of technical excellence and continuous improvement. Must-Have
• 5+ years backend engineering experience with Golang and Java in production. • Strong experience with PostgreSQL, Redis, and event-driven messaging (Kafka, NATS, or RabbitMQ). • Experience building and maintaining REST/gRPC APIs at scale with proper error handling, rate limiting, and versioning. • Understanding of financial systems — ledgers, reconciliation, order lifecycle, or payment processing.
• Experience with microservices architecture, API gateways, and service-to-service communication
patterns. • Familiarity with CI/CD pipelines, containerization (Docker/Kubernetes), and cloud infrastructure (AWS or
GCP). • Strong debugging and incident-response skills in distributed systems. Nice-to-Have
• Prior experience at a brokerage, wealth-tech, neo-bank, or payments company. • Experience with clearing broker integrations or introducing broker models. • Knowledge of compliance and regulatory requirements for cross-border financial products. • Experience with search infrastructure (Typesense, Elasticsearch). • Background in performance engineering — profiling, load testing, and latency optimization. Tech Stack
Languages Golang (primary), Java; Python (analytics/scripting)
Databases PostgreSQL, Redis, Typesense
Messaging Kafka, NATS, SSE / WebSocket
Infrastructure Docker, Kubernetes, AWS/GCP, Terraform
Integrations Clearing broker APIs, KYC providers, payment gateways
Observability Datadog / Grafana, PagerDuty, structured logging (ELK)
Title:- Java Backend Developer
Location:- Chennai ll Kochi ll Trivandrum
Employment Type:- Full time
Experience Required:- 5+ years
Qualifications:
- Bachelor’s degree in Computer Science, Engineering, or related field (or equivalent experience).
- 5 to 11 years of relevant work experience in Java development.
- Java, Spring, Spring boot, Micro services
Additional Skills (Optional):
Experience with cloud platforms such as AWS, Azure, or Google Cloud.
Knowledge of Agile methodologies and tools like Jira.
Good communication and teamwork skills.
Skills: Java, Spring boot, Implementation, Healthcare
Requirements: Job Description
- Excellent knowledge in Core Java (J2SE) and J2EE technologies.
- Hands-on experience with RESTful services, API design are must.
- Knowledge of microservices architecture is must.
- Knowledge of design patterns is must.
- Strong knowledge in Exception handling and logging mechanism is must.
- Agile scrum participation experience. Work experience with several agile teams on an application built with microservices and event-based architectures to be deployed on hybrid (on-prem/cloud) environments.
- Good knowledge of Spring framework (MVC, Cloud, Data and Security. Etc) and ORM framework like JPA/Hibernate.
- Experience in managing the Source Code Base through Version Control tool like SVN, GitHub,Bitbucket, etc.
- Experience in using and configuration of Continuous Integration tools Jenkins, Travis, GitLab, etc.
- Experience in design and development of SaaS/PaaS based architecture and tenancy models.
- Experience in SaaS/PaaS based application development used by a high volume of subscribers/customers.
- Awareness and understanding of data security and privacy. Experience in performing Java Code Review using review tools like SonarQube, etc.
- Good understanding of end-to-end software development lifecycle. Ability to read and understand requirements and design documents.
- Good Analytical skills and should be self-driven.
- Good communication with inter-personal skills. Open for learning new technologies and domain.
- A good team player and ready to take up new challenges. Active communication and coordination with Clients and Internal stake holder
Requirements: Skills and Qualifications
- 6-8 years of experience in developing Java/J2EE based Enterprise Web Applications
- Languages: Java, J2EE, and Python
- Databases: MySQL, Oracle, SQL Server, PostgreSQL, Redshift, MongoDB
- DB Script: SQL and PL/SQL
- Frameworks: Spring, Spring Boot, Jersey, Hibernate and JPA
- OS: Windows, Linux/Unix.
- Cloud Services: AWS and Azure
- Version Controls/ Devops tools: Git, Bitbucket and Jenkins.
- Message brokers: RabbitMQ, and Kafka
- Deployment Servers: Tomcat, Docker, and Kubernetes
- Build Tools: Gradle/Maven
Responsibilities and Duties:
● Java/Java EE application development while providing expertise in the full software development
life cycle, from concept and design to testing.
● Contribute to all phases of the development life cycle
● Write well designed, testable, efficient code
● Ensure designs are in compliance with specifications
● Prepare and produce releases of software components
● Support continuous improvement by investigating alternatives and technologies and presenting
these for architectural review
Required Skills:
● Should have strong knowledge of Core Java and OOPS concepts
● Sound knowledge of Web application development fundamentals and have worked on Servlets,
JSP and any MVC framework
● Strong analytical and reasoning skills and ability to learn and unlearn new technology on back
end as well as on front end
● Ability to understand functional and requirement specifications and transform them to solution
● Understand the client’s problem domain and suggest and implement solution which brings value
to the business
● Can estimate, develop and deliver project from start to end
● Should have professional service experience with any product
● Experience working with onshore team and ability to communicate with clients and stakeholders
● Ready to travel onshore
● Sound knowledge of RDBMS
● Can communicate well with clients and collaborate with cross functional team to deliver high
quality deliverable
● Should have knowledge of Agile/Scrum methodology
● Ability to work on microservices
Why Work at Staunchsys:
● Family Health Cover & Accidental Insurance
● Constant Learning
● Competitive Pay
● Flexible work timings
● 5 days working
● Complimentary Lunch & Snacks
● Personal accident insurance policy
● Encashment facility for both PL & SL
Job Location- https://www.linkedin.com/feed/hashtag/?keywords=pan_india&highlightedUpdateUrns=urn%3Ali%3Aactivity%3A6991253725264662528">#PAN_India
Experience- #5-https://www.linkedin.com/feed/hashtag/?keywords=9years&highlightedUpdateUrns=urn%3Ali%3Aactivity%3A6991253725264662528">#9Years
Employment Type- https://www.linkedin.com/feed/hashtag/?keywords=permanent&highlightedUpdateUrns=urn%3Ali%3Aactivity%3A6991253725264662528">#Permanent
Notice Period- https://www.linkedin.com/feed/hashtag/?keywords=immediate&highlightedUpdateUrns=urn%3Ali%3Aactivity%3A6991253725264662528">#Immediate to 15#30Days
https://www.linkedin.com/feed/hashtag/?keywords=mandatory_skills&highlightedUpdateUrns=urn%3Ali%3Aactivity%3A6991253725264662528">#Mandatory_Skills:-https://www.linkedin.com/feed/hashtag/?keywords=java&highlightedUpdateUrns=urn%3Ali%3Aactivity%3A6991253725264662528">#Java https://www.linkedin.com/feed/hashtag/?keywords=springboot&highlightedUpdateUrns=urn%3Ali%3Aactivity%3A6991253725264662528">#Springboot #Microservices#AWS
Java Backend Engineer - Fintech Rocketship Pilot
Distributed systems, scalability, reliability, robustness, security, quality, building responsive real time systems - do these terms get your adrenaline high? Come be a part of a high growth, fast paced engineering team building for India’s new generation.
We have an open culture, you take responsibility and ownership of what you do. No bureaucracy. No bullsh*t.
If you are up for big engineering challenges, personal and professional growth, then let’s join forces!
You’ll fit right in if you have - 2-3 years of experience building, running and maintaining production services Strong with Java and JVM based services along with PostgreSQL Comfortable working with multiple cloud providers: mainly GCP and AWS Comfortable with CI and CD tools and best practices Done TDD and values TDD
Good to have –
Engineering aptitude - Owns small features, starting from technical design through completion. Appreciates and participates in technical discussions, and values guidance and feedback. Does not need mentoring on a daily basis; makes steady progress by themselves, and knows when to ask for help to get unblocked. Comfortable with referencing technical specifications, API references, source code, and man pages to understand concepts or solve issues.
Design process - Understands the role and importance of design, can write good backend specifications Can communicate API specifications and design goals to the end consumers API
Code reviews - Understands the value of peer-reviewed code; learns how to be unbiased and provide effective feedback. Asks senior engineers for help when needed (e.g.: architecture decisions, refactoring)
Role Description :
- Good Understanding of Java 8 with proven hands-on skills
- Experience in Spring Framework - Spring Boot, Spring Data, Spring REST
- Experience in Spring Reactive
- Experience in Git, Gradle / Maven
- Practitioner of clean code and SOLID principles
- Able to test drive features
- Can debug code at ease and ensure quality code is produced
- Knowledge of design patterns
- Comfortable with agile practices, user stories and task breakdown
- Understands REST principles and Micro services
- Experienced with technologies such as
- Required Java, Spring Boot
- Good to have Maven, GIT, Swagger, PCF, Rabbit MQ
- Good API skills technology such as Rest Webservice
- Good foundation in data structures, algorithms and OO Design with rock solid programming skills
- Experienced on creating unit test using JUnit, Mockito or PowerMock
- Experienced on mark up language such as JSON and YML
- Experienced on using Quality and Security scan tools such as Sonar, Fortify and WebInspect
- Experienced on agile methodology
Programming expertise in latest technologies including; Java
Expertise in MuleSoft, Maven, Gradle, oAuth2.0, JWT, Spring Boot, Microservice Architecture, Web services (SOAP/ REST), Hibernate.
Expertise in DB (MongoDB, MySQL, PostgreSQL)
Experience in developing Continuous Integration/ Continuous Delivery pipelines (CI/ CD)
Proficiency in AWS, AZURE, Docker, DevOps, Git, Jenkins
Extensive experience in parsing XML and JSON and integration with API/ WS
Well versed in software engineering principles, frameworks and technologies.
Excellent communication and team management skills
Self-directed team player who thrives in a continually changing environment
Strong customer service/client service skills.
Desired Candidate Profile
Experience developing and analysing code for a web-based application
Maintain a flexible work schedule and perform other duties when assigned







