
Job Title: Java Developer (Low Latency)
Location: Bangalore
Experience: 7 to 11 Years
Work Location: Cessna Business Park, Wissen office, Bangalore
Work from office in a Hybrid mode (Thrice a week)
Notice Period: Immediate candidates who could join us within 30 days. (Should be serving Notice period - Mandatory)
Required Skills:
8+ years of hands-on experience in Core Java (8 or above).
Strong experience in low latency system development and performance tuning.
Proficiency in multithreading, concurrency, and memory management (GC tuning).
Solid understanding of data structures, algorithms, and design patterns.
Experience with messaging systems (Kafka, RabbitMQ, etc.) and distributed systems.
Familiarity with microservices architecture, REST APIs, and Spring Boot.
Experience in trading or risk systems is required.
Exposure to FX or equity trading applications would be a big plus.

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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Position Overview:
We are seeking a Node.js Developer with 1-2 years of experience to join our team. The ideal candidate should have hands-on experience in backend development, a solid understanding of JavaScript, Express.js, and familiarity with databases. You will be responsible for developing and maintaining server-side applications, collaborating with front-end teams, and ensuring optimal performance.
Key Responsibilities:
- Backend Development: Build and maintain server-side applications using Node.js and Express.js.
- API Development: Design and implement RESTful APIs to support various functionalities.
- Database Management: Work with both SQL (MySQL, PostgreSQL) and NoSQL (MongoDB) databases.
- Code Quality & Testing: Write clean, reusable, and testable code while following best practices.
- Performance Optimization: Optimize applications for speed and scalability.
- Troubleshooting & Debugging: Identify and resolve application issues to ensure smooth operations.
- Security Implementation: Apply basic security measures to protect applications and data.
- Collaboration: Work closely with front-end developers to integrate UI components with backend logic.
Required Qualifications:
- 1-2 years of experience in Node.js backend development.
- Strong proficiency in JavaScript and ES6+ concepts.
- Hands-on experience with Express.js or similar frameworks.
- Familiarity with front-end technologies (HTML, CSS, React/Angular is a plus).
- Experience working with databases (MySQL, PostgreSQL, MongoDB).
- Basic understanding of asynchronous programming and event-driven architecture.
- Experience with Git for version control.
- Knowledge of basic cloud services (AWS, Azure, or GCP is a plus).
- Understanding of Docker and containerization is an advantage.
- Good problem-solving skills and willingness to learn.
Looking for PHP Developer responsible for managing back end services and the interchange of data between the server and the users. Your primary focus will be the development of all server-side logic, definition and maintenance of the central database, and ensuring high performance and responsiveness to requests from the front-end.
You will also be responsible for integrating the front-end elements built by your co-workers into the application.
Therefore, a basic understanding of front-end technologies is necessary as well.
Responsibilities :
- Integration of user-facing elements developed by front-end developers
- Build efficient, testable, and reusable PHP modules
- Solve complex performance problems and architectural challenges
- Integration of data storage solutions
Skills And Qualifications :
- Strong knowledge of PHP web frameworks especially Laravel
- Understanding the fully synchronous behavior of PHP
- Understanding of MVC design patterns
- Understanding of front-end technologies, such as JavaScript, HTML 5, and CSS 3
- Knowledge of object oriented PHP programming
- Understanding accessibility and security compliance
- Strong knowledge of the common PHP or web server exploits and their solutions
- Understanding fundamental design principles behind a scalable application
- User authentication and authorization between multiple systems, servers, and environments
- Integration of multiple data sources and databases into one system
- Familiarity with limitations of PHP as a platform and its workarounds
- Creating database schemas that represent and support business processes
- Familiarity with SQL/NoSQL databases and their declarative query languages
- Proficient understanding of code versioning tools, such as Git
- 3+ year of experience in Development in JAVA technology.
- Strong Java Basics
- SpringBoot or Spring MVC
- Hands on experience on Relationl Databases (SQL query or Hibernate) + Mongo (JSON parsing)
- Proficient in REST API development
- Messaging Queue (RabitMQ or Kafka)
- Microservices
- Any Caching Mechanism
- Good at problem solving
Good to Have Skills:
- 4+ years of experience in using Java/J2EE tech stacks
- Good understanding of data structures and algorithms.
- Excellent analytical and problem solving skills.
- Ability to work in a fast paced internet start-up environment.
- Experience in technical mentorship/coaching is highly desirable.
- Understanding of AI/ML algorithms is a plus.
Role: Java developer
Experience: 4+ years
Job description
○ Working experience on JAVA,Spring Boot. (on building web services?)
○ NOSQL DynamoDB knowledge is plus
○ Working experience in building micro services and distributed systems
○ Working experience on using messaging queues RabbitMQ/Kafka is plus
The ideal candidate should be a self-motivated, multi-tasker, and demonstrated team player. You will be responsible for the production support of software products and coordinating with various teams for support. You should have outstanding communication and Team-Player skills.
Educational Qualification: BCA, MCA or BE/B.Tech (CS)
Must-know technologies: Java,
Good to know technologies: DMN tools
Experience: 02 Years - 05 Years
Skill Level: Good
Responsibilities:
- Contribute to Java development work as well as the latest Decision model and notation tools
-
Comply with coding standards and directions given by his direct manager Collaborate with an international and diverse team of Data Architects, Business Analysts, and Project Managers
-
Tasks will be assigned and after completion, code need to be committed and task assigned for review by Senior Java developer
-
Work with technology stakeholders to devise solutions that will fulfill business requirements and meet organizational strategic goals
-
Develop application functionality which meets business requirements with high quality within given deadlines - develop maintainable, well-documented application functionality with an eye toward standardization, common components, simplicity, performance, robustness and other attributes of enterprise-strength solutions
-
Thoroughly test all functionality - utilize detailed and thorough practices including negative testing, testing of boundary conditions, , and work collaboratively with business areas.
-
Support interfaces between the deployment of developed applications and the decommissioning of legacy applications
-
Support with the Development and Infrastructure Teams
-
Design, and develop scalable, high-performance, highly reliable and secure applications using waterfall and agile methodologies
-
Create reusable code
As a Java Developer, you will be responsible for developing cutting edge health-tech applications that include high scale transaction processing, intelligent bot based programs and data analytics.
What you will do:
- Building components for the company’s advanced health tech platform using Java, Solr, SpringBoot, DialogFlow
- Communicating effectively in a cross-functional product development team and presenting ideas and solutions effectively
- Prioritizing and managing workload and meeting critical project milestones and deadlines
- Effectively collaborating with a team as well as taking initiative and working independently to solve problems
Desired Candidate Profile
What you need to have:- B.Tech/ B.E. (with 65% marks)
- Expertise at hands on programming in JAVA and J2EE
- Proven expertise in Java interfaces with MongoDB (or similar noSQL databases) as well as relational databases (mySQL, Postgres etc)
- Experience in atleast one 6+ months development project involving SpringBoot and Hibernate
- Strong understanding of application server infrastructure
- Good working knowledge of Maven based build systems
- Good understanding of build and deployment pipelines that involve ANT and Jenkins
- Understanding of code versioning tools, such as Git or SVN
- Good knowledge of working on Rest API’s, Webservices
- Excellent problem-solving and interpersonal skills
- Hands on experience with Lucene/ Solr
- Familiarity with DiagFlow based chat bot building
- Knowledge of NLP
- Experience in product based companies
As a Senior Software Engineer - I,you'll take on complex problems that span multiple components and teams. As SSE - I, you could expect to:
- Independently own one or more multiple modules, which includes: requirement analysis, design, development, maintenance & support
- Write extensive, efficient code to address complex modules and that handles interaction between multiple components.
- Rapidly iterate to add new functionalities and solves complex problems with simple and intuitive solutions
- Produce architecture with clean interfaces, that are efficient and scalable
- Participate and contribute to architectural discussions
- Perform design and code reviews
- Perform technical feasibility and trade off studies & guides others to perform these studies
- Solve production issues. Investigate and provide solutions to minimize the business impact due to outage
- Continuously improve performance metrics of modules you own.
- Actively mentor and develop junior developers in all software development practices
- Participate in the hiring process (referrals, interviews, attending recruiting events or writing blogs)
- Onboard and mentors new team members, helps shape the culture of the team
- Collaborate effectively across teams to solve problems, execute and deliver results
Minimum Requirements:
- A minimum of 4 years of relevant software development experience
Headquartered in Silicon Valley, Gupshup is a global leader in cloud messaging, enabling businesses to build engaging conversational experiences, seamlessly across 30+ messaging channels, using a globally available cloud API.
Gupshup handles over 4.5 billion messages per month and has processed over 225 billion messages, enabling over 36,000 businesses to engage nearly a billion users across channels including SMS, WhatsApp, Facebook Messenger, Twitter, WeChat, Viber, Slack, Android RCS, Mobile App and Mobile Web.
Gupshup offers a comprehensive product portfolio that includes an easy to use omni-channel messaging API, advanced bot building platform and mobile marketing tools. Gupshup has also forged strategic partnerships with Facebook, WhatsApp, Google and Cisco to offer innovative mobile messaging solutions with broad reach.
You could log on to https://www.gupshup.io/developer/home">https://www.gupshup.io/developer/home for more information.
Location: Mumbai (Goregaon East )
Roles and Responsibilities:
- Experienced in Java and associated technologies.
- Should have worked with highly scalable web applications
- Good debugging capability
- Should be able to search through logs on server and narrow down to root cause of functional issue from stack trace or performance issue from logs of latency of different components.
- Product development experience in agile environment will be a big plus though not mandatory.
- Highly Tech Savvy and hands-on. Good exposure into design patterns
- Good understanding of OOPS concepts.
- Experience of working with open source technology and tools.
Regards,
Tina Dsouza










