
A primary source of raw materials for manufacturers globally. A raw material sourcing platform with a mission to be the primary source of raw materials for manufacturers globally. Their cross border supply chain and tech solutions ensures manufacturers have access to the best quality raw materials at the right price.
Job Description
As a Backend Engineer you will be responsible for creating REST APIs which are used to drive the User Interface. Given the nature of the application, these APIs need to be very efficient and high performing.
This requires optimizing queries for faster execution and introducing database changes that may be required. We are looking for individuals with great attention to detail, who are genuine, confident, committed and not only passionate about technology, but excited to work in a fun and friendly start-up environment. T
he ideal candidate will be passionate about technology and GETTING IT DONE.
Responsibilities include:
Develop, test, implement and maintain application software
Take part in software and architectural development activities
Debug application issues and helping support respond to client queries
Participate in application development meetings
Provide accurate estimates, clearly communicate status of tasks and identification of risks
Commitment to accomplishing the task at hand and identify the fastest and most reliable way to solve a problem
Performance tuning of application code at different service levels
Interact with customers of the application and help address issues reported
ESSENTIAL SKILLS / EXPERIENCE REQUIRED
- Bachelor's degree in Computer Science or equivalent
- 1-3 years of experience with Java and Spring frameworks.
- Having good knowledge of a scripting language like python is a plus
- Experience with Spring and Hibernate/ ORM
- Understanding of relational databases and normal forms
- Understanding of NoSQL / RDBMS (Mongo or Postgres) and ability to write optimized and high-performing queries
- Strong understanding of Java concurrency, concurrency patterns, experience building thread-safe code
- Experience building RESTful web services
- Strong written and verbal communication skills
- Strong interpersonal skills and time management skills
- Strong problem-solving and analytical skills
- Experience with GIT as a VCS, Unix-based systems
- Experience with NoSQL Database is a plus Following are a set of 'good to have' skills
- React AWS Bitbucket, JIRA

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Job Description:
- Develop, and maintain Java applications using Core Java, Spring framework, JDBC, and threading concepts.
- Strong understanding of the Spring framework and its various modules.
- Experience with JDBC for database connectivity and manipulation
- Utilize database management systems to store and retrieve data efficiently.
- Proficiency in Core Java8 and thorough understanding of threading concepts and concurrent programming.
- Experience in in working with relational and nosql databases.
- Basic understanding of cloud platforms such as Azure and GCP and gain experience on DevOps practices is added advantage.
- Knowledge of containerization technologies (e.g., Docker, Kubernetes)
- Perform debugging and troubleshooting of applications using log analysis techniques.
- Understand multi-service flow and integration between components.
- Handle large-scale data processing tasks efficiently and effectively.
- Hands on experience using Spark is an added advantage.
- Good problem-solving and analytical abilities.
- Collaborate with cross-functional teams to identify and solve complex technical problems.
- Knowledge of Agile methodologies such as Scrum or Kanban
- Stay updated with the latest technologies and industry trends to improve development processes continuously and methodologies.
Java Developer – Job Description
About the Role
Wissen Technology is now hiring for a Java Developer - Mumbai 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. This is a brilliant opportunity to become a part of a highly motivated and expert team that has made a mark as a high-end technical consulting organization.
Required Skills
- Experience: 4 to 7 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 client-facing applications
- Good development experience with RDBMS
- Good knowledge of multithreading 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
Wissen Technology is a niche global consulting and solutions company that brings unparalleled domain expertise in Banking and Finance, Telecom, and Startups.
Wissen Technology is a part of Wissen Group and was established in the year 2015. Wissen has offices in the US, India, UK, Australia, Mexico, and Canada, with best-in-class infrastructure and development facilities.
Wissen has successfully delivered projects worth $1 Billion for more than 25 of the Fortune 500 companies. The Wissen Group overall includes more than 4000 highly skilled professionals.
Wissen Technology provides exceptional value in mission-critical projects for its clients through thought leadership, ownership, and assured on-time deliveries that are always “first time right”.
Our team consists of 1200+ highly skilled professionals, with leadership and senior management executives who have graduated from Ivy League Universities like Wharton, MIT, IITs, IIMs, and NITs, and with rich work experience in some of the biggest companies in the world.
Wissen Technology offers 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
We have been certified as a Great Place to Work® for two consecutive years (2020–2022) and voted as the Top 20 AI/ML vendor by CIO Insider.
ompany Name – Wissen Technology
Group of companies in India – Wissen Technology & Wissen Infotech
Job Title: Java Developer
Experience range:- 3-6 Years
Location:- Chennai
Face 2 Face Drive : Friday & Saturday (11th & 12th July 2025)
· Strong written/verbal communication skills
· Minimum 3+Years of Core Java Programming with Collections Framework, Concurrent Programming, Multi-threading (Good knowledge in Executor service, Fork joins pool and other threading concepts)
· Good knowledge of the JVM with an understanding of performance and memory optimization.
- Good experience in Spring boot.
- Extensive and expert programming experience in JAVA programming language (strong OO skills preferred).
- Excellent knowledge on collections like, Array List, Vector, LinkedList, HashMap, Hash Table, HashSet is mandate.
- Exercised exemplary development practices including design specification, coding standards, unit testing, and code-reviews.
- Expert level understanding of Object-Oriented Concepts and Data Structures
- Good experience in Database (Sybase, Oracle or SQL Server) like indexing (clustered, non-clustered), hashing, segmenting, data types like clob / blob, views (materialized), replication, constraints, functions, triggers, procedures etc.
Java Tech Lead (5–6 Years Experience)
About the Role
We are seeking a highly skilled Java Tech Lead with 5–6 years of hands-on experience in backend engineering, architecture design, and leading development teams.
The ideal candidate will combine strong technical expertise in Java frameworks with a deep understanding of system design, scalability, and performance optimization.
This role involves technical leadership, code reviews, and architectural decision-making for complex enterprise systems — with occasional exposure to analytics-driven and Python-based components.
Key Responsibilities
- Architect, design, and develop scalable backend systems using Java (Quarkus, Spring Boot, Spring, Java EE).
- Own the architecture — ensure modular, extensible, and high-performance service design.
- Lead and mentor a team of developers; conduct code reviews, enforce best practices, and ensure high code quality.
- Collaborate with cross-functional teams (frontend, DevOps, product, data) to deliver integrated, end-to-end solutions.
- Design and optimize database schemas (MySQL, PostgreSQL) and ensure efficient query performance.
- Implement and maintain microservices and distributed systems with strong fault tolerance and observability.
- Drive the adoption of modern development workflows — Git branching strategy, CI/CD, and code quality automation.
- Analyze system performance bottlenecks, implement monitoring, and ensure smooth production deployments.
- Contribute to architecture reviews, technical documentation, and design discussions.
- Occasionally contribute to Python-based analytics modules or automation scripts.
- Work with AWS cloud services (EC2, S3, RDS, Lambda) for deployment, scaling, and infrastructure automation.
Required Skills & Qualifications
- 5–6 years of professional experience in backend application development using Java.
- Strong proficiency in Java frameworks: Quarkus, Spring Boot, Spring, Java EE.
- Proven experience in architecture design, system decomposition, and microservices design principles.
- Solid understanding of object-oriented design (OOD), design patterns, and SOLID principles.
- Strong experience with relational databases (MySQL, PostgreSQL) and query optimization.
- Good understanding of event-driven systems, RESTful APIs, and asynchronous processing.
- Proficiency in Git for version control and team collaboration.
- Strong analytical and debugging skills; ability to diagnose complex production issues.
Good to Have
- Hands-on experience with Python for data processing or analytics integrations.
- Familiarity with AWS cloud architecture and cost optimization practices.
- Experience with CI/CD pipelines (GitHub Actions, Jenkins, GitLab CI).
- Knowledge of Docker/Kubernetes for containerized deployments.
- Exposure to NoSQL databases (MongoDB, DynamoDB, Cassandra).
- Experience with message queues (Kafka, RabbitMQ, or AWS SQS).
- Understanding of system scalability, caching (Redis/Memcached), and observability stacks (Prometheus, Grafana, ELK).
Soft Skills
- Strong leadership, mentoring, and communication skills.
- Proven ability to drive technical decisions and balance short-term delivery with long-term architectural health.
- Collaborative mindset — works closely with product, design, and operations teams.
- Passion for clean architecture, high performance, and continuous improvement.
- Self-driven with a strong sense of ownership and accountability.
• Java 8/12• Frameworks - Spring MVC, REST, Spring Boot, Hibernate, (Optional – Play)• Oracle DB• Elastic Search (Optional but good to have)
• Junit, Mockito• Messaging – Should have knowledge of how RabbitMQ works
• Agile / TDD
• Good Experience in Core-Java concepts
• Experience of Continuous Integration / Continuous Delivery frameworks – Jenkins• Apache, Tomcat
• Good to have basic knowledge in AWS
• Good communication abilities & team-working skills
2. Design software and make technology choices across the stack (from data storage to application to front-end)
3. Understand a range of tier-1 systems/services that power our product to make scalable changes to critical path code
4. Own the design and delivery of an integral piece of a tier-1 system or application
5. Work closely with product managers, UX designers, and end users and integrate software components into a fully functional system
6. Work on the management and execution of project plans and delivery commitments
7. Take ownership of product/feature end-to-end for all phases from the development to the production
8. Ensure the developed features are scalable and highly available with no quality concerns
9. Work closely with senior engineers for refining and implementation
10. Manage and execute project plans and delivery commitments
11. Create and execute appropriate quality plans, project plans, test strategies, and processes for development activities in concert with business and project management efforts
Job Description
Dyte provides developer friendly live video SDKs that allows you to easily add 1:1 calls, group calls and webinars right within your platform. Our low code approach and user friendly documentation means you are ready to go live with less lines of code. Dyte also offers plugins that allows developers to add realtime applications like whiteboard, youtube player and AI applications such as background changer and live audio transcription with couple of lines of code.
About the role:
We are looking for builders of the 1st order. You should get a rush from creating things from scratch and take pleasure in watching users try to tear them apart through sheer volume and strange, unthinkable use cases. And when it breaks, you are to Dyte's rescue! — make everything smooth, secure, and stronger than ever! If you inhale resilience and exhale code, apply now!
You will work closely with founders to build features, tools, and scalable architecture for Dyte. As with any startup, responsibilities will vary frequently. You’ll wear multiple hats, and work across many different technologies, might talk to clients directly and have an active say in the direction of our product. We want someone who is passionate about this type of environment!
What you’ll do:
- Work closely with the founders and the team to plan, design, and build the next iterations of Dyte’s video-audio APIs.
- Mentor and hire Junior Developers.
- You will collaborate closely with other engineers of the team and lend your help in your areas of expertise.
- Build micro-services to support new functionality.
- Build best practices to improve the current API workflow.
- Help us scale our current micro-service framework to support a multi cloud, multi region environment.
- Work closely with the media and the infra team to optimise the performance and reduce the latency of our API framework.
- Help design and develop the next iteration of our observability platform.
- Ensure that our customer’s experience is the best it can be. You might have to interact with the dev team of our clients.
Who you are:
- 7+ years of experience working as a software engineer in a fast paced environment.
- You are intensely curious and passionate about the prospect of diving deep into multiple technologies, platforms, and problem spaces, even if they are currently unfamiliar.
- You embrace uncertainty. Our space is a rapidly growing one and specifications are continuously changing.
- You are experienced with modern React/TypeScript/CSS/HTML coding, testing, debugging and automation techniques.
- You care about the user experience and know-how to build user-friendly web applications.
- You have experience with continuous delivery. Experience with AWS is a bonus.
- You have a working understanding of object-oriented and functional programming paradigms.
- You care about web technologies, exploring data, and software design (and video calls!).
- You have excellent analytical and problem-solving skills, and can communicate your ideas.
- Experience with WebRTC, iOS, Android, or C++ development is a bonus.
- A degree in Computer Science or a similar area are bonuses.
Our Perks:
- Competitive Salary
- ESOPs
- Medical Insurances
- Friendly leaves policy
- 100% Remote Option
Your Responsibilities :
1) Building highly scalable and secured applications/microservices and responsive APIs
2) Assessing the security risks associated with the platform architecture and suggesting/implementing suitable changes for the same.
3) Architect and implement back-end services to support our mobile and web clients.
4) Creating and implementing database schemas that represent and support business processes.
5) Use best software development practices and processes including unit testing, code reviews, and site monitoring post deployment.
6) Continue to research and evaluate new technologies that may improve performance and elegance of our software implementation.
7) Explore and Integrate third-party APIs when required for the project.
8) Work closely with the rest of the team to bring our features into production.
Your skills :
- Hands-on experience in Django Framework.
- Strong Knowledge of Python.
- Strong Knowledge of MVC design pattern and object oriented programming concepts.
- Strong knowledge of RDBMS like Postgresql and Database schema design.
- Experience in developing robust and secure RESTful web API and microservices using Django/Python.
- Experience in Test Driven Development.
- Experience in handling No-SQL MongoDB or similar.
- Hands-on experience in GitHub.
- Experience in CI, CD tools like jenkins.
- Experience in managing cloud-based web applications on Amazon Web Services or Google Cloud.
- You love code and up for the challenge!
Position: Java developer
Experience: 4-5 years
Notice period- immediate to 7 days
• Core Java, J2EE, Spring, Spring Boot, Angular, JavaScript, JQuery, Bootstrap, CSS3, HTML, Ajax, JSON, SQL, PLSQL, Web Services, Restful API’s
• Having good experience in writing complex database queries.
• Should be a quick learner and keen on learning new technologies
• Good knowledge in Object Oriented Programming Principles, Design Patterns and Software Architecture
• Experience with building SaaS-based web applications
• Ability to work as part of a team and offer new ideas
• Working knowledge of GIT version control system
• Product development background.
1 Bachelor’s / Masters’ degree from a reputed university
2 Technical certifications in Java is a good to have. Other programming certifications and
experience e.g., Python or C# is a plus.
3 Years of experience: 4-7 years for Senior Developer and 0-3 years for Developer
Technical Competencies
1 Hands on experience in writing software applications, in particular server side and backend
applications. Web development expertise is a plus.
2 Software development expertise
• Server technologies – Java based application development. Familiarity with various
Java based development frameworks. Spring development experience is a plus.
• Database technologies - Knowledge and familiarity with SQL. Experience with MySQL
as well as NoSQL databases such as MongoDB is a plus.
• Cloud technologies – Experience in building applications on cloud platforms,
especially on MS Azure, including familiarity with Cloud APIs, is a plus.
• Web technologies – Experience building web applications with JavaScript, CSS,
HTML, and expertise with frameworks such as Angular, Express, Node and others
3 Experience in agile software development and development in sprints








