
🧠 Job Description: Senior Java Developer (8+ Years Experience)
Location: Mumbai, India
Employment Type: Full-time, Hybrid mode of working
Company: Wissen Technology
Website: www.wissen.com
🚀 About Wissen Technology
Wissen Technology is a specialized technology consulting firm delivering cutting-edge solutions to global leaders in Banking & Finance, Telecom, and Healthcare. Established in 2015 and part of the Wissen Group (founded in 2000), Wissen has scaled rapidly with impressive impact and recognition.
- 🌍 Offices in US, UK, India, Australia, Mexico, and Canada
- 👥 1700+ Wissen Technology professionals; part of a 4500-strong Wissen Group
- 🏆 Great Place to Work® Certified
- 🧠 Featured as a Top 20 AI/ML Vendor (CIO Insider, 2020)
- 📈 Achieved 400% revenue growth in 5 years (with zero external funding)
- 💼 Delivered $1B+ worth of projects to 50+ Fortune 500 companies
Learn more about our work and thought leadership:
📄 Articles by Wissen | 💼 LinkedIn
About the Role
We are seeking an experienced Senior Java Developer with 8+ years of hands-on expertise in building scalable, high-performance applications. The ideal candidate will have strong fundamentals in Java, OOPS, Multithreading, Spring concepts, and SQL, and will play a key role in designing, developing, and optimizing enterprise-grade solutions.
Key Responsibilities
- Design, develop, and maintain complex applications using Core Java and Spring frameworks
- Apply advanced Object-Oriented Programming (OOPS) principles to deliver clean, modular, and reusable code
- Implement and optimize multithreaded applications for high-performance systems
- Work with SQL databases for efficient data modeling, query optimization, and integration
- Collaborate with cross-functional teams to gather requirements and translate them into technical solutions
- Conduct code reviews, troubleshoot issues, and ensure adherence to best practices
- Mentor junior developers and contribute to technical knowledge sharing within the team
- Ensure application scalability, performance tuning, and security compliance
Required Skills & Qualifications
- Bachelor’s/Master’s degree in Computer Science, Engineering, or related field
- 8+ years of professional experience in Java development
- Strong expertise in Core Java, OOPS, and Multithreading
- Hands-on experience with Spring concepts (Spring Core, Spring MVC, Spring Boot preferred)
- Proficiency in SQL and database design (MySQL, Oracle, PostgreSQL, etc.)
- Solid understanding of software development life cycle (SDLC) and Agile methodologies
- Strong analytical, problem-solving, and communication skills
🌟 Why Wissen?
Join a company that combines start-up agility with enterprise stability. Work alongside some of the brightest minds from institutions like MIT, Wharton, IITs, IIMs, and NITs. Be part of mission-critical projects for Fortune 500 giants, and grow in a culture that invests in your future.

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
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Job Title: Java Developer (Immediate Joiners Only)
Experience: 5+ Years
Work Locations: Pune, Gurgaon, Noida, Bangalore, Ahmedabad
Work Mode: Hybrid
Joining: Immediate Joiners / Candidates who have completed their notice period only
About Us
At Deqode, we build high-performing engineering teams for cutting-edge technology solutions. We are currently looking for experienced Java Developers who are passionate about scalable systems, clean code, and modern architectures.
Key Responsibilities:
- Design, develop, test, and maintain Java-based applications using Java 8 and Spring Boot
- Build robust RESTful APIs and integrate with third-party services
- Work on microservices architecture, including containerization and orchestration
- Ensure the performance, quality, and responsiveness of applications
- Identify bottlenecks and bugs and devise solutions to these problems
- Participate in code reviews and contribute to technical discussions
- Collaborate with cross-functional teams to define and deliver new features
- Write unit and integration tests to maintain code quality
Mandatory Skills:
- Strong hands-on experience with Java 8 or above
- In-depth knowledge of Spring Boot and Microservices architecture
- Experience in developing RESTful APIs
- Proficient in object-oriented design principles and software design patterns
- Good understanding of databases (SQL/NoSQL)
- Familiarity with version control tools like Git
- Exposure to CI/CD practices and tools
Good to Have:
- Knowledge of containerization (Docker, Kubernetes)
- Experience with messaging queues (Kafka, RabbitMQ)
- Cloud exposure (AWS/Azure/GCP)
- Basic knowledge of unit testing frameworks like JUnit, Mockito
Skills Required:
- Experience of more than 4 to 6 years in software development.
- Very Strong Experience in Core Java.
- Excellent Java Programming skills Experience in Data Structures, Algorithms and Design Patterns.
- Strong in Problem solving, Analytical skill and logical thinking.
- Skill to be trained: java, spring, mango db, cassandra.
- Strong experience in Spring Boot, Restful API
- Looking for shorter notice period candidates only.
- Core Java 5.0 and above
- Extensive experience in developing enterprise-scale n-tier applications for the financial domain.
- Should possess good architectural knowledge and be aware of enterprise application design patterns.
- Should have the ability to analyze, design, develop and test complex, low-latency client-facing applications.
- Good development experience with RDBMS, preferably Sybase database
- Good knowledge of multi-threading and high volume server side development
- Experience in sales and trading platforms in investment banking/capital markets
- Basic working knowledge of Unix/Linux.
- Strong written and oral communication skills.
- Should have the ability to express their design ideas and thoughts.
Job Description:
|
Key Responsibility Areas: |
· Design, build and deliver Enterprise software solutions. · Write code with standards and conventions and follow best practices. · Encourage and lead innovation and solid lifecycle processes. · Collaborate with development teams on work definition, estimation and prioritization · Lead and grow as a professional software engineer. · Full ownership of product deliveries and mentoring junior team members. · Preparing curriculum to train junior developers for Java Web Development · Strong client interactions to provide excellent Quality of Service. · Owning the code base and making sure all code is reviewed and is of very high quality. · Write and modify coding conventions and standards documents for all development |
|
Required Skills: |
Technologies/Frameworks – · Core Java, J2EE, · Spring Core and Spring MVC, Sprint Boot, Spring Security, · JDBC, Hibernate, RESTful APIs, SOAP WebServices · Knowledge of JavaScript, JQuery, AJAX, HTML5, and CSS3, Angular is added advantage · Junit or Mockito frameworks · Maven, Git · Knowledge Data Structures, · SQL, MySQL · Designing relational database schemas · Basics of AWS, Cloud, Microservices
· BFSI, FinTech |
|
Qualification |
B.E., B.Tech. from reputed institutes with good academic record |
Job Role & Responsibility:
VMWare NSBU HCX team is looking for passionate engineers with a startup mindset and ready to solve business problems by applying technical engineering knowledge. You will be a part of enterprise class HCX cloud mobility platform to help customers solve datacenter evacuation, consolidation and hybrid cloud use cases. You’ll be part of a dynamic engineering team where a passion for innovation is a key to address technical problems, improve performance and scalability and focus on continuous improvement is of paramount importance. You will be a part of R&D development team focused on various aspects of HCX ranging from workload mobility to networking in the context of hybrid cloud paradigm. As part of the job, you will work with senior architects and other engineers of the team to deliver world class enterprise class product.
Required Skills:
- Background with Computer Science fundamentals (based on a BS or MS in CS or related field) with 4+ years of substantial professional experience
- Strong programming skills in Java/Go/Python
- Knowledge of distributed systems
- Understanding of Micro Services architecture, REST APIs Design and Development
- Understanding of Kubernetes, Kafka, No-sql, Java/Sprint, Client MVC
- Exposure to one or more UI technologies
- Organized and passionate about details; able to effectively perform multiple/concurrent tasks within deadlines in a dynamic environment
Preferred Skills:
- Strong knowledge about virtualization, and/or container technologies
- Experience in SDN/Networking/Network Management domain is added plus
- Exposure to AWS, Azure is added plus
knowledge of Java and Spring.
• Familiarity with:
• SQL and noSQL databases
• Kubernetes, Docker, Helm
• Message/Streaming Technologies: Kafka, Kinesis, JMS, etc
• Unix Shell Scripting
• Microservices Architecture
• AWS, GCP, or Azure
• Experience in modern software development methodologies and technologies:
Scrum, Jira, Git
• Ability to handle full application development cycle from requirements to
production.
• A dedication to positive team collaboration
About us :
BharatPe was co-founded by Ashneer Grover and Shashvat Nakrani in 2018 with the vision to make financial inclusion a reality for Indian merchants.
BharatPe launched India's first UPI interoperable QR code, first ZERO MDR payment acceptance service, and first UPI payment backed merchant cash advance service.
In 2020, post-Covid, BharatPe also launched India's only ZERO MDR card acceptance terminals - BharatSwipe. Currently serving over 50 lakh merchants across 35 cities, the company has grown business 30x in 2019 and is a leader in UPI offline transactions, having processed 5 crore+ UPI transactions a month (annualized TPV of US$ 5+ Bn).
INVESTORS :
- The company's list of marquee investors includes Beenext, Sequoia, SteadView Capital, Ribbit Capital, Coatue Management LLC, Insight Partners, and Amplo.The company has already facilitated disbursement of over Rs. 500 crores to its merchants since launch.
- Total Funding : $283.5M
- Latest Funding : Series D
- Why Join BharatPe ?
- Quality of work : Our current tech setup is serving us well for now. But, at our pace of growth, we know we will outgrow it soon. So, we are rebuilding our tech stack from scratch. Be it infrastructure as code, containerization and orchestration, event driven microservices, stream processing, or intrusion kill chain, we have a clear roadmap as well as prior experience of building modern state-of-the-art technology architecture. This is an excellent opportunity to build a world class tech setup from scratch and take it to scale.
- High operating freedom : We believe in ownership and accountability rather than command and control. Our teams are structurally empowered to operate with a lot of freedom, with effective mechanisms built within the teams to help with sound yet quick decision making.
- Experimentation and risk taking is encouraged to achieve ambitious goals.
- Competitive compensation.
- Cash and high growth equity.
- We pay good cash and our equity is growing at a very fast pace.
- We have a good team, proven business, and ample capital. Thus, the downside risk is low and upside potential is high.
- We are accelerating full throttle.
- This is the best stage to join a startup.
- Positive culture.
- We believe new ideas can come from everywhere, so we are always on the lookout. Instead of carrot and stick approach, we appeal to internal motivation to excel.
- We are strong team players - we build on each other's strengths and have each other's back in failures.
Requirements :
- Innovative and self-motivated with passion to develop complex and scalable applications.
- 2-5 years of experience in software development with strong focus on algorithms and data structures.
- Strong coding and design skills with prior experience in developing scalable & high availability applications using Core Java/J2EE, Spring, Hibernate.
- Work experience with Relational databases is required (Primarily MySQL).
- Prior work experience with Non-Relational databases (primarily Redis, MongoDb) is an added plus.
- Strong Analytical and Problem Solving Skills.
- B Tech/BCA from IIT or BE in computer science from a top REC/NIT.
Responsibilities / Requirements:
● Be hands-on implicated in the design and implementation of NestJs REST APIs.
● Work with DevOps engineers to scale and optimise NestJs micro-services.
● Must have an excellent understanding of how the web works.
● Extensive knowledge of OOP, Design Patterns, and SOLID Principles.
● Familiar with modern engineering practices: coding standards, code reviews, continuous deployment, automated testing.
● Must be willing to constantly learn new things.
● Knowledge of algorithms and data structures.
Technologies:- • Nestjs • TypeScript 3. MySQL • Docker • Kafka
Knowledge of NestJS would be preferable.
- Deep understanding of technologies and architecture for a scalable and highly available set-up
- Experienced in Java/Golang and related Technologies like Spring/Hibernate
- Strong networking and Operating Systems fundamentals
- Experienced in Streaming technologies like Kafka
- Experience working with SQL and NoSQL Databases
- Experienced in developing the long-term tech strategy for analytics and translate that into an achievable roadmap
1. Technical skills include Java/JDK 6 and above, web services SOAP, REST, Micro Webservice, XML Parsing and schema design skills, JDBC, ORM, Multi-Threading.
2. Hands-on experience in design (HLD/LLD) and design patterns and Design principles is mandatory.
3. Excellent communication and client handling skills are required.
4. Server-side component design, detailed technical design, development, implementation and maintenance
5. In depth knowledge of core java. Solid on coding fundamentals e.g. Object-Oriented design, data structures and dependency injection
6. Hands-on experience in widely used third party frameworks (e.g. Spring, Hibernate)
7. Experience with Java Script framework like EXTJS, Jquery , Angular etc.
8. Strong background Object Oriented analysis and design
9. Hands on experience with Databases technologies preferably MS SQL Server.
10.Knowledge of deployment platforms Jboss/ Wildfly/Tomcat.
11.Experience working in high performing development teams using Agile/Scrum methodologies and tools (eg.Agile,Jira)
12 Experience with automated code review tools and build process.
13.Experience in performance optimization by code optimization, profiling, detecting bottle neck and finding contended locks in system
14.Proven track record of being a successful developer and lead and mentor by accomplishing tasks on schedule with strong initiative, commitment to quality, team blending and leadership skills.
15.The candidate must be highly self-motivated confident and mature, well developed analytical and problem-solving skills with the aptitude to learn as well as a flexibility to adapt to change.
16. Candidate should have worked on end-to-end life cycle of the project (ideation to go-live)
The right candidate will be offered ESOPs as well in their compensation.










