
Job Title: Java Developer
Java Developer – Job Description Wissen Technology is now hiring for a Java Developer - Bangalore with hands-on experience in Core Java, algorithms, data structures, multithreading and SQL. We are solving complex technical problems in the industry and need talented software engineers to join our mission and be a part of a global software development team. A brilliant opportunity to become a part of a highly motivated and expert team which has made a mark as a high-end technical consulting.
Required Skills: • Exp. - 4 to 14 years.
• Experience in Core Java and Spring Boot.
• Extensive experience in developing enterprise-scale applications and systems. 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 clientfacing applications.
• Good development experience with RDBMS.
• Good knowledge of multi-threading and high-performance server-side development.
• Basic working knowledge of Unix/Linux.
• Excellent problem solving and coding skills.
• Strong interpersonal, communication and analytical skills.
• Should have the ability to express their design ideas and thoughts.

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
Shift timings : Afternoon
Job Summary
We are seeking an experienced Senior Java Developer with strong expertise in legacy system migration, server management, and deployment. The candidate will be responsible for maintaining, enhancing, and migrating an existing Java/JSF (PrimeFaces), EJB, REST API, and SQL Server-based application to a modern Spring Boot architecture. The role involves ensuring smooth production deployments, troubleshooting server issues, and optimizing the existing infrastructure.
Key Responsibilities
● Maintain & Enhance the existing Java, JSF (PrimeFaces), EJB, REST API, andSQL Server application.
● Migrate the legacy system to Spring Boot while ensuring minimal downtime.
● Manage deployments using Ansible, GlassFish/Payara, and deployer.sh scripts.
● Optimize and troubleshoot server performance (Apache, Payara, GlassFish).
● Handle XML file generation, email integrations, and REST API maintenance.
● Database management (SQL Server) including query optimization and schema updates.
● Collaborate with teams to ensure smooth transitions during migration.
● Automate CI/CD pipelines using Maven, Ansible, and shell scripts.
● Document migration steps, deployment processes, and system architecture.
Required Skills & Qualifications
● 8+ years of hands-on experience with Java, JSF (PrimeFaces), EJB, and REST APIs.
● Strong expertise in Spring Boot (migration experience from legacy Java is a must).
● Experience with Payara/GlassFish server management and deployment.
● Proficient in Apache, Ansible, and shell scripting (deployer.sh).
● Solid knowledge of SQL Server (queries, stored procedures, optimization).
● Familiarity with XML processing, email integrations, and Maven builds.
● Experience in production deployments, server troubleshooting, and performance tuning.
● Ability to work independently and lead migration efforts.
Preferred Skills
● Knowledge of microservices architecture (helpful for modernization).
● Familiarity with cloud platforms (AWS/Azure) is a plus.
Job Title: Java Lead – Software Engineering
Location: Mohali | Panchkula | Gurugram (Onsite)
Experience: 7+ Years
About the Role:
We are seeking a highly skilled and passionate Java Lead who will be responsible for designing, developing, and leading the implementation of scalable and maintainable product features. As a Lead, you will play a key role in guiding a team, ensuring coding best practices, and resolving complex technical challenges. This is a great opportunity for someone who thrives in a fast-paced environment, is passionate about solving technical problems, and is excited about leading product development end-to-end.
Key Responsibilities:
· Lead a team of developers in designing and building micro-services using Java.
· Decompose feature requests into sizable and estimable pieces of work.
· Deliver scalable, maintainable, and high-quality code within defined timelines.
· Conduct code reviews to ensure adherence to coding standards and best practices.
· Collaborate with cross-functional teams to solve complex technical challenges.
· Act as a subject matter expert for specific product components.
· Debug and resolve critical production issues with detailed root cause analysis.
· Drive adoption of Agile practices, ensuring proper planning, estimation, and delivery.
Required Qualifications:
· Bachelor’s degree in Computer Science or a related field.
· 7+ years of strong experience in Java development.
· 3+ years of hands-on experience in developing and delivering productized software applications.
· Experience in leading teams and mentoring developers.
· Proven ability to design and deliver scalable and maintainable applications.
· Strong problem-solving and analytical skills with a self-driven mindset.
· Excellent written and verbal communication skills.
Preferred Skills:
· Hands-on experience with Java micro-services.
· Familiarity with CI/CD pipelines.
· Strong understanding of Agile methodologies.
· Cloud and containerization exposure with AWS and Docker.
Technology Stack:
· Java
· Micro-services
· SQL
· AWS
· Docker
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.
Job Description:
Engage in code design, testing, integration, deployment, and enhancements
Write high-quality code and take responsibility for tasks
Solve performance bottlenecks
Communicate and collaborate with product manager, QA, and UI/UX teams
Deliver with quality, on-time in a fast-paced start-up environment
Have a strong sense of code quality
Candidate Profile:
Bachelor’s/Master’s degree in Engineering, Computer Science (or equivalent experience)
At least 5+ years of relevant experience as a back-end engineer
Excellent Java and object-oriented development skills
Experience in building and scaling microservices
Strong problem-solving skills, technical troubleshooting, and diagnosing
Solid knowledge of RDBMS and NoSQL technologies
Experience in developing back-ends for enterprise systems
Knowledge of debugging performance and optimization techniques
Experience in Java, Mongo, MySQL, AWS technologies, ELK stack, Spring boot, Kafka
Good knowledge of cloud technologies eg. AWS
Demonstrated ability to deliver in a fast-paced environment
- Java – Spring, Hibernate, Data Structures & Algorithms
• Knowledge on a Database system.
3+ years of experience in software development.
Preferably BE/B-Tech engineering degree, but not a must.
• 3 years’ experience developing server-side Java – Spring, Hibernate and REST
• Full-SDLC cycle, with large-scale live roll-out participation as a developer.
• Expert understanding of the object-oriented design and programming concepts
• Good understanding of relational and non-relational database/datastores/caches best practices and challenges
• Have a passion for quality and writing clean, solid, readable code that scales and performs well
• Proficient in Git and familiarity with continuous integration
• A team player who values collaboration, innovation, and inclusion
• Comfortable working in an Agile environment
• Strong verbal and written communication skills
Java Developer
- Hands-on experience in Software Development.
- Hands-on experience in designing and developing applications using Java EE platforms.
- Experience with test-driven Web Development.
- Team Handling, Problem-solving, Work Ethics, and Creativity.
- Communicate effectively with both business and technical stakeholders.
- Experience in Java Technologies.
- Proficient in Java and JEE internals
- Working knowledge of Microservices.
- Proficiency in Relational Databases, SQL and ORM technologies (Hibernate/DAO).
- Working Knowledge of the Spring Framework & Multi- threading
Mandatory Skill Sets: Java, Spring, Spring boot, microservices, multi-threading
Experience: 4-8
Positions open: 6
Location: WFO Bangalore, Gurgaon
Regards,
Pranay Chandra
Mobile Programming LLC
● Work together with the team to prototype new solutions within emerging technologies
● Work with DevOps to build and scale tools and libraries to improve developer and user
experience
● Create backend services to ensure the best possible performance, quality, and
responsiveness of the applications
● Integration of user-facing elements developed by front-end developers with server-side logic
● Collaborate with team members to provide and receive architecture-level and code-level
feedback
Essential Qualifications:
● 5 + years of software development experience
● Bachelor’s Degree in Computer Science / Software Engineering.
● High sense of ownership, the zeal to build scalable and customer-focused applications.
● Strong knowledge of Javascript, Node js, and related frameworks (e.g. Express, Socket io)
● In-depth experience in SQL / NoSQL database design
● Experience in RESTful API design
● Understanding of fundamental design principles behind a scalable application
● Familiarity with the principles of agile and lean development methodologies
● TDD (unit, integration, and end to end)
● Experience working with deployment and orchestration technologies (such as Docker,
Kubernetes, Chef, Salt, Ansible, Jenkins, GIT, Vagrant)
● Knowledge of Web Server technologies- like IIS, Apache or Nginx
About Recko:
Recko was founded in 2017 to organise the world’s transactional information and provide intelligent applications to finance and product teams to make sense of the vast amount of data available. With the proliferation of digital transactions over the past two decades, Enterprises, Banks and Financial institutions are finding it difficult to keep a track on the money flowing across their systems. We are building products which enable them to handle and monitor massive volumes of transactional data without writing a single line of code and ensure the right amounts are flowing between the right beneficiaries, with the right deductions at the right time. Over the last few months, we have grown to a point where we are processing more than 25 million transactions monthly for our customers.
Recko is a Series A funded startup, backed by marquee investors like Vertex Ventures, Prime Venture Partners and Locus Ventures. Traditionally enterprise software is always built around functionality. We are reimagining enterprise software to be built around the user. We believe software is an extension of one’s capability, and it should be delightful and fun to use.
Working at Recko:
We believe that great companies are built by amazing people. At Recko, We are a group of young Engineers, Product Managers, Analysts and Business folks who are on a mission to bring consumer tech DNA to enterprise fintech applications. The current team at Recko is 50 members strong with stellar experience across fintech, e-commerce, digital domains at companies like Flipkart, PhonePe, Ola Money, Belong, Razorpay, Grofers, Jio, Oracle etc. We are growing aggressively across verticals.
About the Role:
What are we looking for:
1. 2+ years of experience with Java MVC frameworks like Spring / Dropwizard / Play and with
MySQL / Oracle / PostgreSQL.
2. Experience building at least one application from scratch.
3. Understanding of at least one test frameworks and basic system administration.
4. Experience with cache store / message broker like Redis / RabbitMQ / Kafka.
5. Good to have: Experience with NoSQL databases like Cassandra, MongoDb, Neo4j, ElasticSearch. etc and Understanding of different concurrency models used in Akka, node.js, Go, RxJava etc
6. Interest in learning new languages / framework as needed.
7. A growth mindset and passionate about building things from the ground up and most
importantly, you should be fun to work with.
As a backend developer at Recko, you will:
1. Design and implement microservices with high reliability and scalability.
2. Be involved and participate in the overall application lifecycle.
3. Define and communicate technical and design requirements.
4. Learn about new technologies and incorporate them.
5. Improve engineering standards, tooling, and processes.
6. Collaborate with multi-disciplinary team of designers, developers and system administrators.
You will be expected to design, develop and maintain large-scale complex backend web
applications.
You will be expected to rapidly learn and apply relevant new technologies.
You will be having a high level of interaction with business and product stakeholders.
You will be working on the entire web application stack, which includes:
o Web server hosting
o RESTful communication
o Message brokering
o Backend application layer, which includes the service and domain layers
o Data layer for persistence or caching
You will be participating in an agile software development cycle, which includes:
o Design
o Development
o Code Review
o Unit and Integration Testing
o Release
As a senior developer, you will be expected to contribute to design, code review, refactoring, and
project management.
You will be exposed to the following technologies:
o Web application frameworks: Ruby on Rails, Node.js, Java Play, Vert.x, AIOHTTP, AWS
Lambda
o Languages: Ruby, Java, Kotlin, Javascript, Python
o Data stores: PostgreSQL, Aerospike, Redis, Amazon Redshift
o Communication: HTTP, Amazon SQS, Sidekiq, Amazon SNS
o Server Management: Amazon ECS, Docker
Product Overview
You will be contributing to products concerning both customers and partner drivers.
Product sectors include:
o Growth: You’ll build tools to help boost user growth on the platform including our industry
best driver on-boarding, training and certification system, referral system, and lead
management models.
o Lifecycle Management: Build tools to help users engage with the platform better, which
includes rewards and recognition module, subscription service, account management tools,
partner and customer wallets and payout modules, and churn detection systems among
others.
o Transaction Experience: You’ll help deliver the most delightful booking experience to our
customers and drivers. As part of this team, you’ll be responsible for our core booking
system, pricing and payment systems, location tracking and filtering services, fraud
prevention systems, and in-app ticketing and support among others.
o Fulfilment: As part of the fulfilment team, you’ll work on systems which ensure high degree
of ride fulfilment on the platform. Tools including allocation methodologies and system,
dynamic pricing, dynamic partner routing, and partner re-activation tools among others.
o Enterprise Solutions: You’ll help Porter’s enterprise customers achieve delivery excellence.
You’ll build tools for contract management, fleet management, fleet and route optimisation
tools, alerting and monitoring tools, and analytics suite among others.










