
We are looking for an experienced Java Developer with strong proficiency in Kafka and MongoDB to join our dynamic team. The ideal candidate will have a solid background in designing and developing high-performance, scalable, and reliable applications in a microservices architecture. You will be responsible for building real-time data processing systems, integrating various services, and ensuring smooth data flow across systems.
Key Responsibilities:
- Design, develop, and maintain scalable Java applications with a focus on performance and reliability.
- Build and maintain Kafka-based real-time data pipelines for handling high-volume, low-latency data.
- Work with MongoDB to design and optimize database schemas and queries for high throughput and availability.
- Collaborate with cross-functional teams to define, design, and implement new features and improvements.
- Troubleshoot and resolve issues related to system performance, scalability, and reliability.
- Ensure software quality through best practices, including testing, code reviews, and continuous integration.
- Implement and maintain security best practices in both code and data handling.
- Participate in agile development cycles, including sprint planning, daily standups, and retrospectives.
Required Skills & Qualifications:
- 7+ years of experience in Java development, with a strong understanding of core Java concepts (J2EE, multithreading, etc.).
- Hands-on experience with Apache Kafka, including setting up brokers, producers, consumers, and understanding Kafka Streams.
- Proficient in working with MongoDB for designing efficient data models, indexing, and optimizing queries.
- Experience with microservices architecture and RESTful APIs.
- Familiarity with containerization technologies like Docker and orchestration tools like Kubernetes is a plus.
- Strong understanding of distributed systems, message-driven architectures, and event streaming.
- Familiarity with version control systems like Git.
- Excellent problem-solving skills, with the ability to debug and optimize code for high-performance systems.
- Experience with CI/CD pipelines and automated testing.

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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About Company:
GEVME is a Singapore based fast growing leading virtual & hybrid event and engagement platform for building unique experiences. It is used by event professionals worldwide to build, operate and monetise virtual events for some of the biggest brands. The flexibility of the platform provides them with limitless possibilities to turn any virtual event idea into reality. We have already powered hundreds of thousands of events around the world for clients like Facebook, Netflix, Starbucks, Forbes, MasterCard, Singapore Government.
We are a product company with a strong engineering and family culture; we are always looking for new ways to enhance the event experience and empower efficient event management. We’re on a mission to groom the next generation of event technology thought leaders as we grow.
Join us if you want to become part of a vibrant and fast-moving product company that's on a mission to connect people around the world through events.
Do check out our platform GEVME.
Location: Remote/Work From Home
What you'll be doing:
- Writing reusable, testable, and efficient code in Node.js for back-end services.
- Ensuring optimal and high-performance code logic for the data from/to the database.
- Collaborating with front-end developers on the integrations.
- Implementing effective security protocols, data protection measures, and storage solutions.
- Preparing technical specification documents for the developed features.
- Providing technical recommendations and suggesting improvements to the product.
- Writing unit test cases for APIs.
- Documenting code standards and practicing it.
- Staying updated on the advancements in the field of Node.js development.
- Should be open to new challenges and be comfortable in taking up new exploration tasks.
Skills:
- 4-6 years of strong proficiency in Node.js and its core principles.
- Experience in test-driven development.
- Experience with NoSQL databases like MongoDB is required
- Experience with MySQL database
- RESTful/GraphQL API design and development
- Docker and AWS experience is a plus
- Extensive knowledge of JavaScript, PHP, web stacks, libraries, and frameworks.
- Strong interpersonal, communication, and collaboration skills.
- Exceptional analytical and problem-solving aptitude
- Experience with version control system like Git
- Knowledge about the Software Development Life Cycle Model, secure development best practices and standards, source control, code review, build and deployment, continuous integration
We are seeking a highly skilled Backend Developer to join our team and contribute to the development and improvement of both our customer-centric SaaS platform and internal systems.
As a Backend Developer, you will be responsible for designing, implementing, and maintaining the server-side logic of our application, ensuring high performance, scalability, and security.
Responsibilities:
• Collaborate with cross-functional teams, including front-end developers, product managers, and designers, to understand project requirements and translate them into technical specifications.
• Design and develop server-side logic, APIs, and database schema to support the functionality and performance requirements of our SaaS platform.
• Write clean, modular, and well-documented code using any relevant programming language preferably Java with SpringBoot.
• Optimize the backend systems for maximum speed and scalability, ensuring high performance and responsiveness of the application.
• Implement data storage solutions using PostgreSQL or other relational databases, ensuring data integrity and security.
• Conduct thorough testing and debugging to identify and resolve any issues or bugs in the backend code.
• Stay up-to-date with emerging technologies, industry trends, and best practices in backend development and contribute to the continuous improvement of our development processes.
Requirements:
• Proven work experience as a Backend Developer or similar role, with a focus on server-side development.
• Proficiency in working with relational databases, particularly PostgreSQL, and writing efficient SQL queries.
• Familiarity with SaaS concepts and architecture.
• Experience with API design and development, including RESTful APIs. • Solid understanding of software development principles, including object-oriented programming, design patterns, and data structures.
• Experience with version control systems, such as Git.
• Strong problem-solving and analytical skills, with keen attention to detail. • Excellent communication and teamwork skills, with the ability to collaborate effectively with cross-functional teams.
• Bachelor's degree in Computer Science, Engineering, or a related field is preferred, but not mandatory.
As a Backend Developer with expertise in Java, and PostgreSQL, you will play a critical role in developing and maintaining the backend infrastructure of our SaaS and internal platforms, ensuring its reliability, scalability, and performance. Join our team and be a part of building cutting-edge software solutions that empower our customers and drive business growth.
We are looking for a Backend Developer to join our team to build the first-of-its-kind product in the space - and we are looking for out-of-the-box thinkers with the original thought process and lateral thinking. The code you ship will be used by thousands of users every day helping them get their work done. You will join a young, dynamic and fast-paced environment, and work with cross-functional teams to design, build, and roll out products that deliver the company's vision and strategy.
Responsibilities :
- Backend development with Node.js, MongoDB and Typescript.
- Developing and testing flexible, scalable applications.
- Collaborate with Front end developers to produce optimum output.
- Think out of the box, discuss and implement your ideas over the phase.
Required skills :
- Strong knowledge in creating RESTFUL APIs(web service)
- Proficient understanding of code versioning tools: Git.
- Good knowledge of Docker & Shell scripting
- Basic knowledge of web fundamentals: HTML, CSS
- Experience in DevOps is an added advantage
Job Description
Organizational Overview
It is a super app to digitize India’s 50M+ sales agents where they can get access to relevant products & services, receive training through interactive videos on “how to sell, what to sell and whom to sell”, and earn money. For businesses, we help them save a huge effort in managing and training these agents and help them increase their reach to every nook and corner of the country.
India is a trust deficit market which cannot be accessed through Internet Marketing on Facebook and Google as the majority of the customers need training, push, motivation and a primer on why and how to use a product.
To solve this problem, traditional industries like BFSI, Telecom, Automobile, Real Estate etc. use 50M+ frontline sales executives to drive distribution. We believe that not just for these traditional industries but also for emerging companies in FinTech, EdTech etc these agents will play a pivotal role in accessing trust deficit customers.
They have grown to a 100,000+ agent network across India (growing 50% MoM). One Code is funded by tier1 VC’s and angels in India.
Role Overview
Summary of Role
As a part of the consumer products software engineering division, you will take an active role in the definition and evolution of standard practices and procedures. You will be responsible for defining and developing software for tasks associated with the developing, designing and debugging of the software applications.
Responsibilities:
- Overlook development of all consumer products in JAVA
- Optimize components for maximum performance across a vast array of web-capable devices and browsers
- Focus on code maintainability and performance of application
- Provide technical advice and assists in solving programming problems
- Continuously create new and interactive features that would help to improve user experience and user engagement.
- Assist with troubleshooting of issues as needed
- Lead the design and architecture of software solutions
- Assist in developing and maintaining continuous integration pipelines
Required Skills for this Role:
- JAVA
- Spring/Spring Boot
- Hibernate
- Linux
- REST
- Kafka
- Mysql
- AWS
- ELK Stack (Elasticsearch)
- CI/CD Pipelines
- Team Leadership experience of at least 3 year
Qualifications:
- 2+ years of experience in Java based technologies
- Experience in designing databases and system architecture
- Experience in building products from scratch at well funded start-ups
Salary Range: Best in industry
Why join us?
- You will get to work with an experienced team who has worked in multiple startups.
- Experimenting is the name of the game. And POCs are the snacks that fuel them.
- Grow with us. It is a family
- Gain exposure to two of the fastest growing markets in the world - South East Asia and Social Commerce
Need ASAP Joiners!!
Interested Who can Join in maximum of 30 days please share your updated profile with the below-mentioned necessary details
Job Role : Backend Engineer / Sr. Backend Engineer
As a Senior Backend Platform Engineer, you will work closely with engineers/scientists in a small, but fast-growing, team environment while i) applying the state of the art AI technologies in the field of deep learning and computer vision to design and develop the user recommendation platform to help our users to find their best matches and ii) building scalable and reliable backend API services to serve massive volume of client traffic while ensuring best user experience. A successful candidate will have strong technical skills and a motivation to achieve results in a fast-paced environment.
In this Senior Backend Platform Engineer role, you will:
- Design, develop, and operate resilient distributed services that run on ECS or Kubernetes to serve hundreds of millions of users around the world
- Collaborate with various functional teams on expansion of our recommendation systems
- Influence the roadmap and product development of KlearNow App and services
- Recruit, inspire, and develop team members
We're looking for:
- BS/MS in Computer Science or equivalent with 1-5 or 5-10 years minimum industrial working experiences
- Excellent knowledge of Computer Science fundamentals, with strong competencies in data structures, algorithms, software design and coding
- Strong designing and building distributed backend systems handling high volumes of traffic
- Experience in handling ambiguous business requirements with excellent prioritization, time management abilities, and a focus on execution
- Passion to solve complex problems and make continuous improvements
- Experience in Search and Recommendation Systems preferred
- Excellent knowledge and experience on a backend language, like Java, Scala, Go, Node.js, etc.
Bonus points if you have:
- Experience in design and development using NoSQL, such as DynamoDB, Cassandra, or RocksDB
- Experience with Aerospike, ElasticSearch, Kafka, and Spark
- Experience with Agile development methodology and CI/CD
- Experience with Docker containers along with Kubernetes or ECS
If you wish to know more on the opportunity and like to pursue this further, then I would suggest that you share your updated CV and suggest a good time when we could connect.
Why us
KlearNow is operational and a certified Customs Business provider in US, Canada and UK with plans to grow in many more markets in near future. Be a part of a rapidly growing company where you will have the opportunity to extend our leadership position and fast-track innovation behind AI-powered intelligent supply chain solutions.
Over and above the core customs clearance solution, KlearNow is also providing consolidated freight visibility, data and document management and intra-port activity for efficient Drayage.
To know more about KlearNow, please visit our website https://www.klearnow.com/">https://www.klearnow.com/
KlearNow has a flexibility of a small start-up with the security of a well-funded organization with strong backers and advisors.
KlearNow is transforming B2B supply chains with its smart Logistics as a Service (LaaS) platform that connects data, people, processes, and organizations. Its AI-powered platform digitizes paper-based transactions—streamlining customs clearance and drayage services. KlearNow empowers importers, exporters, freight forwarders, and supply chain partners by providing new levels of visibility and productivity to reduce costs and create enhanced customer experiences
Over and above the core customs clearance solution, KlearNow is also providing consolidated freight visibility, data and document management and intra-port activity for efficient Drayage.
KlearNow grows, we’re looking for an Engineering Leader who is passionate about people growth and organizational development. This is a unique opportunity to help build the products and practices that will support KlearNow growth over the next round of funding. In this role, you will reimagine enterprise logistics software and build global products that enable KlearNow expand in Americas, Europe and Asia.
Be a part of a rapidly growing, series B funded tech company where you will have the opportunity to extend our leadership position and fast-track innovation behind AI-powered intelligent supply chain solutions.

Position: Backend Developer 1 / Backend Engineer:
Location: Bangalore
Experience: .5 to 4 years, preferably in an agile environment
Strong Knowledge Node.js and MongoDB
Good Knowledge on Flask, SQL and other databases
Good Knowledge on Deployment Process (Nginix, Docker, AWS, Digital Ocean)
Basic Knowledge on Python
- You will design, build and own APIs and Services, which will be the core of the product.
- You will participate in continuing education and training to remain current on best practices, learn new programming languages, and better assist other team members.
- You will part of developing ideas for new programs, products, or features by monitoring industry developments and trends.
- You will have to take lead on projects, compile and analyze data, processes, and codes to troubleshoot problems and identify areas of improvement.
REQUIREMENTS
- 3-5 years of experience in building highly scalable backend systems.
- Fluency or understanding of specific languages, such as JAVA, Operating System may be required, and Experience in Databases such as MySQL or Postgre SQL
- Strong understanding of Computer Science Fundamentals, Data Structures and Algorithms, SOLID Design Principles, and REST Patterns.
- Focus on efficiency, user experience, and process improvement.
- Excellent project and time management skills.
- Strong problem-solving and communication skills.
- Ability to work independently or with a group


Responsibilities:
- Resolve complex technical issues and make design decisions to meet the critical requirements of scalable, highly available, multi-tenant enablement of services in the cloud.
- Independently investigate, present options, review and implement completely new functionality OR re-architect an existing solution to meet growing needs
- You will work closely with other development teams, product management, UX, and QA to define and implement a new product offering while ensuring continued functionality.
- Work with various external (application) teams to integrate with the product and help guide the integration.
- You will implement solutions that include database schema, business logic, and some presentation layer work.
- You will use existing methods and best practices in the software industry to create features and platforms with the highest levels of security, reliability, efficiency, and scalability.
- Experience mentoring senior developers.
Requirements:
- 8+ years of experience in software development experience with a proven track record of making technical decisions
- 8+ years of experience in coding in more than one programming language, e.g. Python, GoLang, node.js, etc
- Intimate working understanding of modern web applications from the database to browser
- Intimate understanding of MongoDB and extensive experience with database-driven applications
- Great problem-solving skills and ability to abstract functional requirements
- Excellent communicator in both technical and non-technical contexts
- Experience designing and improving complex software applications
- Experience coaching and mentoring developers at various levels of experience
- You have a sound understanding of programming fundamentals & their application to highly scalable web-based systems.
- You have successfully led a small agile team.

- Relevant industry experience in developing performant and scalable backend systems using Node.js.
- Solid understanding of Core Computer Science, Systems Design and Data Structures & Algorithms.
- Knowledge and experience in the best practices of design and architecture.
- Experience in developing extensible and scalable solutions.
- Experience in implementing automatic assessments associated with the front-end layer, both integration and unit.
- A love for beautiful, clean and maintainable code.
SKILLS WE ARE LOOKING FOR
Build reusable APIs for our client-facing apps in Node.js
Create and maintain scalable infrastructure leveraging modern cloud platforms Write tests and documentation as you implement features with your team Maintain expertise in current and emerging technologies and tools
THE PERSON WE ARE LOOKING FOR
4+ years’ Experience with NodeJS
BS degree or higher in Computer Science or Engineering Experience documenting and testing RESTful APIs
Experience working with databases in PostgreSQL, MongoDB or Redis
Experience and enthusiasm for working collaboratively with others in an Agile environment

