
Job Title: Java Developer
Experience: 5 –14 Years
Location: Mumbai / Bangalore
Employment Type: Full-time
We are looking for experienced and passionate Java Developers with strong expertise in Core Java, multithreading, and performance tuning. You will be responsible for designing and developing high-performance, scalable, and resilient backend systems. This is an exciting opportunity to work on complex, enterprise-level systems and modern architectures like microservices and event-driven frameworks.
• 5–10 years of hands-on experience in Java (8 or above) development.
• Strong foundation in OOPs, data structures, algorithms, and design patterns.
• Deep understanding of multithreading, concurrency, and synchronization techniques.
• Experience with Spring Boot, Spring MVC, JPA/Hibernate.
• Good working knowledge of RESTful API development.
• Proficient in SQL and experience with relational databases like MySQL, PostgreSQL, etc.
• Familiarity with Git, Maven/Gradle, and CI/CD pipelines.
• Exposure to Agile/Scrum methodology

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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JD Java Developer:
· Looking for a Senior Java Developer.
· Open Positions - 1
· Experience Required 8+yrs.
· Rich Expertise in Java frameworks like Spring MVC, Spring boot, Hibernate, and Microservices.
. Hands on experience with React.
· Knowledge in JavaScript, CSS and HTML5 etc. added advantage.
· Knowledge in database and SQL skills.
· Communicating with client/product owner for requirement gathering.
· Estimating the tasks and preparing plan for development.
· Strong analytical, logical skills and team leading skills.
. Knowledge in cloud based technologies (AWS, GCP).

Role Description : Senior Java Developer
As a senior developer you will be responsible to manage the software development life cycle from planning to prioritizing to testing and release. Responsibilities includes gathering system and team product requirements, building java modules and testing features before release. Should have hands on experience developing software with agile methodologies and are ready to lead our junior developers.
Responsibilities • Contribute to all phases of development lifecycle. • Planning of API workflow. • Understanding the requirements all the teams involved and planning the development process. • Write well designed, testable, efficient code. • Prepare and produce releases of software components. • Support continuous improvements by investigating alternatives and technologies and presenting these for architecture review. • Designing, implementing, and maintaining java applications that are often high-volume and low latency. • Identify bottlenecks and bugs and advise solutions to these problems. • Develop highly scalable REST APIs to use in our applications. • Guide the team and help them in any complex situations.
Required Qualifications We are looking for individuals who are curious, excited about learning, and navigating through the uncertainties and complexities that are associated with a growing company. Some qualifications that we think would help you thrive in this role are: • Minimum 8+ Years in a Java programming. • Expert hands-on knowledge of latest technology, good exposure to web technologies and open to all technologies like Java, J2EE, Spring Boot, Microservices, Cloud computing, any DB. • Very good exposure to DevOps concepts and tools, Continuous Integration and Continuous Delivery. • Quick learner believes in continuous learning and acts as a catalyst for building the culture within the organization.
• Analytical thinking skills, problem solving with strong exposure to root causing tools and techniques and ability to come up with solutions in complex situations. • Familiar with various design and architectural patterns. • Bachelor/Masters of CS/IT Engineering, BCA/MCA, B Sc/M Sc in CS/IT
Preferred Qualifications • Deep insights of Java and J2EE internals such as memory management, transaction management, etc. • Skill for writing reusable Java libraries. • Proficient understanding of code versioning tools, such as Git. • Familiarity with build tools such as Ant, Maven, and Gradle. • Ability to work without guidance and under tight deadlines. • Result oriented and focused on meeting deliverable timelines. • Teamwork and willingness to listen to others. • Communicate effectively • Good knowledge of microservices. • Expertise in developing enterprise level web applications and RESTful APIs using Microservices with demonstrable production-scale experience. • Strong background working with Linux/Unix environments. • Working experience in industry standard protocols related API security. • Clear understanding of web services and SOA related standards like REST/OAuth/JSON.
Location: Bengaluru/Udupi (NO WORK FROM HOME OPTION)
Notice Period: Immediate Joining or Maximum 1 Month
Job Title: Senior Java Developer
Location: Mumbai (On-site)
Notice Period: Immediate Joiners Preferred / 15 Days or Less
Job Description:
We are seeking a highly skilled and experienced Senior Java Developer with 5+ years of hands-on experience in Java-based application development. The ideal candidate should be adept at designing scalable systems, optimizing performance, and leading development efforts in collaboration with cross-functional teams. This is a full-time, on-site position for candidates currently residing in Mumbai and available to join within 15 days.
Key Responsibilities:
- Lead end-to-end design, development, and deployment of Java applications
- Translate functional and technical requirements into detailed design
- Build scalable, secure, and high-performing applications
- Develop and consume RESTful APIs and ensure seamless integration
- Implement microservices architecture and containerized deployments
- Write clean, efficient, and well-documented code
- Perform code reviews, debugging, and performance tuning
- Collaborate with DevOps for CI/CD and production deployments
- Guide junior developers and conduct knowledge-sharing sessions
- Stay updated on new technologies and industry trends
Required Technical Skills:
- Languages & Frameworks:
- Core Java, J2EE
- Spring Framework (Spring Boot, Spring MVC, Spring Security)
- Hibernate / JPA
- Apache Maven / Gradle
- API Development & Integration:
- RESTful APIs, JSON, Swagger/OpenAPI
- Databases:
- MySQL, PostgreSQL, Oracle
- MongoDB, Redis (preferred)
- Frontend Exposure (Optional but Preferred):
- HTML, CSS, JavaScript, jQuery
- Angular / React
- Tools & Platforms:
- Git, GitHub / GitLab / Bitbucket
- Jenkins, Docker, Kubernetes (basic knowledge)
- SonarQube, Log4j, ELK stack (preferred)
- Cloud & DevOps (Good to Have):
- AWS (EC2, S3, Lambda, RDS), Azure or GCP
- CI/CD pipeline setup
- Architecture & Patterns:
- Microservices, MVC, Design Patterns
- Event-driven architecture (Kafka/RabbitMQ is a plus)
- Testing:
- JUnit, Mockito
- Postman, REST Assured
Soft Skills:
- Excellent problem-solving and debugging skills
- Strong communication and collaboration abilities
- Ability to lead and mentor a team
- Time management and task prioritization
- Adaptable and quick learner
Qualifications:
- Bachelor’s/Master’s degree in Computer Science, Engineering, or related field
- 5+ years of relevant software development experience
- Relevant certifications (Oracle Java, AWS, PMP) are a plus
Eligibility Criteria:
- Must be currently residing in Mumbai
- Must be able to join within 15 days or less
- Immediate joiners preferred
Job Role: We are seeking a skilled Java Developer to contribute to the development and enhancement renowned banking application, which supports automatic reconciliation and unified data reporting for their clients. This role involves working on high-impact enhancements, data pipeline integration, and platform modernization. The ideal candidate will be a quick learner, self-motivated, and able to ramp up quickly in a fast-paced environment.
Key Responsibilities:
Design, develop, and maintain Java-based applications using Java 17 and Spring Boot.
Implement and manage message routing using Apache Camel.
Develop and monitor data pipelines using Kafka.
Support and enhance existing cloud-native applications.
Work with OpenShift Container Platform (OCP 4) for container orchestration and deployments.
Utilize Jenkins for CI/CD pipeline automation and management.
Collaborate with cross-functional teams to integrate multiple data sources into a unified reporting platform.
Participate in code reviews, unit testing, and performance tuning.
Troubleshoot and resolve production issues in collaboration with operations teams.
Document development processes and system configurations.
Required Skills:
Strong proficiency in Java 17 and Spring Boot frameworks.
Hands-on experience with Apache Camel for message routing and transformation.
Solid experience in Kafka development and monitoring tools.
Good understanding of cloud pipeline architectures and deployment strategies.
Experience working with OpenShift (OCP 4).
Familiarity with Jenkins for CI/CD and automated deployments.
Understanding of cloud deployment platforms (AWS, Azure, or GCP preferred).
Strong analytical and debugging skills.
Ability to learn quickly and adapt to evolving project requirements.
Nice to Have:
Experience in financial services or transaction reporting platforms.
Familiarity with microservices architecture and containerization best practices.
Knowledge of monitoring tools (e.g., Prometheus, Grafana).
Required Skills and Experience:
Proficient in Java (Java 8 and above), with a strong understanding of object-oriented programming.
Knowledge in the trading domain, including familiarity with trading systems and protocols.
Strong skills in SQL and PL/SQL for database management and query optimization.
Hands-on experience with Linux and Windows operating systems for application deployment and maintenance.
Proficiency in scripting languages (e.g., Bash, PowerShell, or similar).
Knowledge of Python programming for auxiliary development and analytics tasks.
Familiarity with multithreading, concurrency, and low-latency application development.
Experience with CI/CD pipelines, version control systems (e.g., Git), and deployment workflows.
Company and Founders
Egregore Labs (http://www.egregorelabs.com/" target="_blank">www.egregorelabs.com) is a financial software company founded in 2017 by Prashant Vijay (ISB, Tulane) & Hari Balaji (IIM Ahmedabad, IIT Madras) both of whom have spent over a decade each in Financial Services, with a majority of their experience at Goldman Sachs across New York, Hong Kong & Singapore in roles across Trading, Quant & Technology. More about the founders is available here and here
We operate at the intersection of Unstructured Data and Finance. We run multiple products, including Romulus (http://www.romulus.co/" target="_blank">www.romulus.co) and Robana (http://www.robana.ai/" target="_blank">www.robana.ai) - all our products work on the same underlying principles and set of technologies.
Ideal Background
- At least 2 years experience in back-end development in a fast-paced environment, working in Python
- Deep understanding of technologies used in web-deployed SaaS products, including Rest APIs
- Exposure to AWS, Azure, or other cloud providers
- Sound understanding of computer science principles
- Exposure to any of the following
- Financial services
- Natural Language Processing
- Robotic Process Automation
- Intelligent Document Processing
- Document Management and Repositories
Opportunity
We will share our workload as a team and we expect you to work on a broad range of tasks. Here’s are some of the things you might have to do on any given day:
- Developing APIs and endpoints for deployments of our product
- Infrastructure Development such as building databases, creating and maintaining automated jobs
- Build out the back-end to deploy and scale our product
- Build POCs for client deployments
- Integrate our products with 3rd party products/tools/services
- Document your code, write test cases, etc.
Skills
- Hands-on experience with Python (2+ years)
- Sound understanding of Postgres and NoSQL databases such as MongoDB
- Deep familiarity with UNIX, major cloud platforms (AWS, Azure), DevOps
- Understanding of databases, and related tools, paradigms
- A computer science education would be great, but other engineering disciplines are ok as well
Desirables
We are looking for a person who has :
- Resourcefulness- - we're looking for versatile developers who are good at figuring out what they need to use, learn, build, re-purpose to get the job done quickly and efficiently.
- Ownership- - We like to be directive and not prescriptive in our management. We- d love for you to take ownership of what you work on, and tell us what to do, rather than the other way round.
- Work Ethic- - We've grown up on Wall Street. We work hard and have aggressive goals. We want our teammates to be focused, goal-oriented, and consistent high achievers.
- Execution Focus- - Our business is about getting things done and getting things done right. We want outcome-focused colleagues who can multi-task, and execute quickly and elegantly.
Interested?
We are an early-stage company. Working here is not for the faint-hearted. An intense and unstructured work environment, lots of excitement, and a group of motivated colleagues are what we bring to the table. We ask you to bring your undivided attention, strong worth ethic & resourcefulness. We are Delhi-based and work 6 days a week. Currently, due to the pandemic, we are operating remotely since Feb 2020.
Role / Purpose - Lead Developer - API and Microservices
Must have a strong hands-on development track record building integration utilizing a variety of integration products, tools, protocols, technologies, and patterns.
- Must have an in-depth understanding of SOA/EAI/ESB concepts, SOA Governance, Event-Driven Architecture, message-based architectures, file sharing, and exchange platforms, data virtualization and caching strategies, J2EE design patterns, frameworks
- Should possess experience with at least one of middleware technologies (Application Servers, BPMS, BRMS, ESB & Message Brokers), Programming languages (e.g. Java/J2EE, JavaScript, COBOL, C), Operating Systems (e.g. Windows, Linux, MVS), and Databases (DB2, MySQL, No SQL Databases like MongoDB, Cassandra, Hadoop, etc.)
- Must have experience implementing API Service architectures (SOAP, REST) using any of the market-leading API Management tools such as Apigee and frameworks such as Spring Boot for Microservices
- Should have Advanced skills in implementing API Service architectures (SOAP, REST) using any of the market-leading API Management tools such as Apigee or similar frameworks such as Spring Boot for Microservices
- Appetite to manage large-scale projects and multiple tracks
- Experience and knowhow of the e-commerce domain and retail experience are preferred
- Good communication & people managerial skills
CricStox is a Pune startup building a trading solution in the realm of gametech x fintech.
We intend to build a sport-agnostic platform to allow trading in stocks of sportspersons under any sport
through our mobile & web-based applications.
We’re currently hiring a Backend Cloud Engineer who will gather, refine specifications and requirements
based on technical needs and implement the same by using best software development practices.
Responsibilities?
● Mainly, but not limited to maintaining, expanding, and scaling our microservices/ app/ site.
● Integrate data from various back-end services and databases.
● Always be plugged into emerging technologies/industry trends and apply them into operations and
activities.
● Comfortably work and thrive in a fast-paced environment, learn rapidly and master diverse web
technologies and techniques.
● Juggle multiple tasks within the constraints of timelines and budgets with business acumen.
What skills do I need?
● Excellent programming skills in Javascript or Typescript.
● Excellent programming skills in Nodejs with Nestjs framework or equivalent.
● A solid understanding of how web applications work including security, session management, and
best development practices.
● Good working knowledge and experience of how AWS cloud infrastructure works including services
like APIGateway, Cognito, S3, EC2, RDS, SNS, MSK, EKS is a MUST.
● Solid understanding of distributed event streaming technologies like Kafka is a MUST.
● Solid understanding of microservices communication using Saga Design pattern is a MUST.
● Adequate knowledge of database systems, OOPs and web application development.
● Adequate knowledge to create well-designed, testable, efficient APIs using tools like Swagger (or
equivalent).
● Good functional understanding of ORMs like Prisma (or equivalent).
● Good functional understanding of containerising applications using Docker.
● Good functional understanding of how a distributed microservice architecture works.
● Basic understanding of setting up Github CI/CD pipeline to automate Docker images building,
pushing to AWS ECR & deploying to the cluster.
● Proficient understanding of code versioning tools, such as Git (or equivalent).
● Hands-on experience with network diagnostics, monitoring and network analytics tools.
● Aggressive problem diagnosis and creative problem-solving skills.
We are looking for a seasoned technology professional who can use their experience to build effective teams, high-performance culture, scalable processes and mentor aspiring talent. The candidate must be entrepreneurial, hands-on in technology, must have experience with design, development, and delivery of mobile apps, web applications and tech platforms, at scale. It is highly important for the candidate to have experience with eCommerce and is expected to have some experience in the retail sector, building technology systems and platforms.
The person is expected to be a technology leader with the capability of building and leading a high-performance engineering team.
Responsibilities
- Provide Technical authority in prospective meetings with other departments and provide guidance to developers
- Provide Hands-on Technical leadership, in the development, operation, and improvement of services
- Work with the wider team to ensure high-quality code is delivered in line with the project goals and delivery cycles
- Work with product managers to understand user needs for new/existing services
- Work closely with designers to deliver rapid prototypes as well as production code to ensure high accessibility standards are upheld. We expect familiarity with modern frameworks and languages, as well as best practices such as Clean Code, TDD, BDD, continuous integration, continuous delivery, and DevOps
- Attract, hire, retain and develop top-notch engineering/technology talent
- Implement technology product(s) as per the product requirements, using appropriate technologies
- The company’s tech-stack comprises Node.js (for Backend), MongoDB as the Database (MEAN stack), and Native App development (for iOS and Android)
- Communicate business goals to the engineers. Keep them focused on building the right product and in the right manner. Ensure that engineering is always adding business value and communicate this value to the business leaders
- Be an individual contributor if necessary. Engineering managers could spend ~20% of their time coding and contribute to the code base
- Perform regular code review of the code being developed by your team, to maintain the high quality of code
Qualification
- Computer Science & Engineering education/degree from an internationally recognized top technology institute or university
- 8-10 years of overall experience in the delivery of quality scalable and extensible software. Should currently be leading a team of top-notch developers as an Engineering Manager or Technical Architect.
- Experience of leading product development in B2C startups
- 4+ years of experience in architecting, designing, developing, and scaling high-quality mobile apps and end-to-end systems (consumer-facing and business-facing systems), under tight timelines and delivery pressure
- Experience with backend software development at a high scale. Experience with distributed systems, service-oriented architecture (SOA), and microservices design.
- Capacity to take the complete responsibility of developing and delivering a product-mobile apps and backend. Has good design sense. Has to experience with Node.js.
- Knowledge of new and cutting-edge technologies & tools. Experience working on complex projects having Analytics, Data-Science and Machine Learning components.

Demonstrable experience in Core Java (8 or higher) and Spring framework (Core, AOP, Batch, JMS).
Multithreading, Data structure, Algorithm, Eceptional handling,OOPS Concepts, collections
- Excellent customer facing skills that include conducting compelling technical briefing & demonstrations. The person should have a technical aptitude to implement new technologies and articulate the solutions to the customer.
- Java, Spring with Database & Unix - Preferred with Scala or Spark(Hadoop) background
- Proven knowledge in OOPS & Data Structures
- Strong experience of developing multi-threaded and synchronization application
- Demonstrated delivery experience of Micro services APIs using Springboot, Oracle PL/SQL development and activities like Performance tuning / Optimization.
- Experience of using Git/Bitbucket, Maven/Bamboo, & related tools.
- Good Understanding of Agile Delivery Methodology & experience in working with Scrum teams.










