
š§ Ā Job Description: Senior Java Developer (8+ Years Experience)
Location:Ā Mumbai, India
Employment Type:Ā Full-time, Hybrid mode of working
Company:Ā Wissen Technology
Website:Ā www.wissen.com
š About Wissen Technology
Wissen Technology is a specialized technology consulting firm delivering cutting-edge solutions to global leaders in Banking & Finance, Telecom, and Healthcare. Established in 2015 and part of the Wissen Group (founded in 2000), Wissen has scaled rapidly with impressive impact and recognition.
- š Offices in US, UK, India, Australia, Mexico, and Canada
- š„ 1700+ Wissen Technology professionals; part of a 4500-strong Wissen Group
- š Great Place to WorkĀ® Certified
- š§ Featured as a Top 20 AI/ML Vendor (CIO Insider, 2020)
- š Achieved 400% revenue growth in 5 years (with zero external funding)
- š¼ Delivered $1B+ worth of projects to 50+ Fortune 500 companies
Learn more about our work and thought leadership:
šĀ Articles by WissenĀ | š¼Ā LinkedIn
About the Role
We are seeking an experiencedĀ Senior Java DeveloperĀ with 8+ years of hands-on expertise in building scalable, high-performance applications. The ideal candidate will have strong fundamentals inĀ Java, OOPS, Multithreading, Spring concepts, and SQL, and will play a key role in designing, developing, and optimizing enterprise-grade solutions.
Key Responsibilities
- Design, develop, and maintain complex applications usingĀ Core JavaĀ andĀ Spring frameworks
- Apply advancedĀ Object-Oriented Programming (OOPS)Ā principles to deliver clean, modular, and reusable code
- Implement and optimizeĀ multithreaded applicationsĀ for high-performance systems
- Work withĀ SQL databasesĀ for efficient data modeling, query optimization, and integration
- Collaborate with cross-functional teams to gather requirements and translate them into technical solutions
- Conduct code reviews, troubleshoot issues, and ensure adherence to best practices
- Mentor junior developers and contribute to technical knowledge sharing within the team
- Ensure application scalability, performance tuning, and security compliance
Required Skills & Qualifications
- Bachelorās/Masterās degree in Computer Science, Engineering, or related field
- 8+ years of professional experience inĀ Java development
- Strong expertise inĀ Core Java, OOPS, and Multithreading
- Hands-on experience withĀ Spring conceptsĀ (Spring Core, Spring MVC, Spring Boot preferred)
- Proficiency inĀ SQLĀ and database design (MySQL, Oracle, PostgreSQL, etc.)
- Solid understanding of software development life cycle (SDLC) and Agile methodologies
- Strong analytical, problem-solving, and communication skills
š Why Wissen?
Join a company that combines start-up agility with enterprise stability. Work alongside some of the brightest minds from institutions like MIT, Wharton, IITs, IIMs, and NITs. Be part of mission-critical projects for Fortune 500 giants, and grow in a culture that invests in your future.

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 WorkĀ®. 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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We are solving complex technical problems in the financial 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.
Job Description:Ā
⢠Experience in Core Java, Spring Boot.
⢠Experience in microservices.
⢠Extensive experience in developing enterprise-scale systems for global organization. Should possess good architectural knowledge and be aware of enterprise application design patterns.
⢠Should be able to analyze, design, develop and test complex, low-latency client-facing applications.
⢠Good development experience with RDBMS in SQL Server, Postgres, Oracle or DB2
⢠Good knowledge of multi-threading
⢠Basic working knowledge of Unix/Linux
⢠Excellent problem solving and coding skills in Java
⢠Strong interpersonal, communication and analytical skills.
⢠Should be able 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 hassuccessfully 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 āfirst time rightā.
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 WorkĀ® for two consecutive years (2020-2022) and voted as the Top 20 AI/ML vendor by CIO Insider.
Real people. Real service.
AtāÆSupplyHouse.com, we value every individual team member and cultivate a community where people come first. Led by our core values ofĀ Generosity,Ā Respect,Ā Innovation,Ā Teamwork, and GRIT, weāre dedicated to maintaining a supportive work environment that celebrates diversity and empowers everyone to reach their full potential. As an industry-leading e-commerce company specializing in HVAC, plumbing, heating, and electrical supplies since 2004, we strive to foster growth while providing the best possible experience for our customers.
Through an Employer of Record (EOR), we are looking for a new, remoteĀ Backend EngineerĀ in India to join our growing IT Team. This individual will report into our Full Stack Team Lead and have the opportunity to work on impactful projects that enhance our e-commerce platform and internal operations, while honing your skills in backend and full stack development. If youāre passionate about creating user-friendly interfaces, building scalable systems, and contributing to innovative solutions in a collaborative and fun environment, weād love to hear from you!Ā
Role Type:Ā Full-Time
Location:āÆRemote from India
Schedule:Ā Monday through Friday, 4:00 a.m. ā 1:00 p.m. U.S. Eastern Time / 12:00 p.m. ā 9:00 p.m. Indian Standard Time to ensure effective collaborationĀ
Base Salary:Ā $25,000 - $30,000 USD per year
Responsibilities:
- Collaborate with cross-functional teams to gather and refine requirements, ensuring alignment with business needs.
- Design, develop, test, deploy, and maintain scalable, high-performance software applications.
- Develop and enhance internal tools and applications to improve company operations.
- Ensure system reliability, optimize application performance, and implement best practices for scalability.
- Continuously improve existing codebases, conducting code reviews, and implementing modern practices.
- Stay up to date with emerging technologies, trends, and best practices in software development.
Requirements:
- Bachelorās or Masterās degree in Computer Science, Software Engineering, or a related field.
- 3+ years of hands-on experience in backend and/or full-stack development with a proven track record of delivering high-quality software.
Back-End Skills:
- Proficiency inĀ JavaĀ and experience with back-end frameworks likeĀ Spring Boot.
- Strong understanding of database design, RDBMS concepts, and experience withĀ SQL.
- Knowledge of RESTful API design and integration.
Development Lifecycle: Proven ability to contribute across the entire software development lifecycle, including planning, design, coding, testing, deployment, and maintenance.
Tools & Practices:
- Familiarity with version control systems, like Git, and CI/CD pipelines.
- Experience with agile development methodologies.
Additional Skills:
- Strong problem-solving and debugging capabilities.
- Ability to create reusable code libraries and write clean, maintainable code.
- Strong communication and collaboration skills to work effectively within a team and across departments.
- High-level proficiency of written and verbal communication in English.
Preferred Qualifications:
- Proficiency in HTML5, CSS3,Ā JavaScriptĀ (ES6+), and responsive design principles.
- Expertise in modern JavaScript frameworks and libraries such asĀ React, Angular, or Vue.js.
- Experience with cross-browser compatibility and performance optimization techniques.Ā
- Experience working on Frontend responsibilities such as:Ā
- Designing and implementing reusable, maintainable UI components and templates.
- Working closely with Designers to ensure technical feasibility and adherence to UI/UX design standards.
- Managing and updating promotional banners and site-wide templates to ensure timely execution of marketing initiatives.
Why work with us:Ā
- We have awesome benefits ā We offer a wide variety of benefits to help support you and your loved ones. These include: Comprehensive and affordable medical, dental, vision, and life insurance options; Competitive Provident Fund contributions; Paid casual and sick leave, plus country-specific holidays; Mental health support and wellbeing program; Company-provided equipment and one-time $250 USD work from home stipend; $750 USD annual professional development budget; Company rewards and recognition program; And more!
- We promote work-life balanceāÆā We value your time and encourage a healthy separation between your professional and personal life to feel refreshed and recharged. Look out for our 100% remote schedule and wellness initiatives!Ā
- We support growthā We strive to innovate every day. In an exciting and evolving industry, we provide potential for career growth through our hands-on training, access to the latest technologies and tools, diversity and inclusion initiatives, opportunities for internal mobility, and professional development budget.Ā
- We give backĀ āWe live and breathe our core value, Generosity, by giving back to the trades and organizations around the world. We make a difference through donation drives, employee-nominated contributions, support for DE&I organizations, and more.Ā Ā
- We listenāÆāāÆWe value hearing from our employees. Everyone has a voice, and we encourage you to use it! We actively elicit feedback through our monthly town halls, regular 1:1 check-ins, and company-wide ideas form to incorporate suggestions and ensure our team enjoys coming to work every day.Ā
Check us out and learn more atāÆhttps://www.supplyhouse.com/our-company!Ā
Additional Details:Ā
- Remote employees are expected to work in a distraction-free environment. Personal devices, background noise, and other distractions should be kept to a minimum to avoid disrupting virtual meetings or business operations.Ā Ā Ā
- SupplyHouse.com is an Equal Opportunity Employer,Ā strongly values inclusion, and encourages individuals of all backgrounds and experiences to apply for this position.Ā
- To ensure fairness, all application materials, assessments, and interview responses must reflect your own original work. The use of AI tools, plagiarism, or any uncredited assistance is not permitted at any stage of the hiring process and may result in disqualification. We appreciate your honesty and look forward to seeing your skills.Ā
- We are committed to providing a safe and secure work environment and conduct thorough background checks on all potential employees in accordance with applicable laws and regulations.
- All emails from the SupplyHouse team will only be sent from an @supplyhouse.com email address. Please exercise caution if you receive an email from an alternate domain.
What is an Employer of Record (EOR)?
Through our partnership with Remote.com, a global Employer of Record (EOR), you can join SupplyHouse from home, while knowing your employment is handled compliantly and securely. Remote takes care of the behind-the-scenes details ā like payroll, benefits, taxes, and local compliance ā so you can focus on your work and career growth. Even though Remote manages these administrative functions, youāll be a part of the SupplyHouse team: connected to our culture, collaborating with colleagues, and contributing to our shared success. This partnership allows us to welcome talented team members worldwide while ensuring you receive a best-in-class employee experience.
About the Company:
We are a Series A funded Indonesian online group buying platform that helps people connect with like minded people who want to buy the same item/product at a discounted price. Ā The team is spread across India and Indonesia, and is led by experienced founders who have founded, set-up, scaled and exited businesses across India and Indonesia. We have raised our first round of funding, and are growing extremely fast.Ā We are actively looking for Full Stack developers to join our team.
Job Duties and Responsibilities
We are looking for an experienced full-stack engineer to implement both back-end and front-end software solutions to serve both internal and external customers. The position entails working in an agile team to develop Java- and React-based projects that support our system.
- Design, implement and test full-stack solutions using Java, Spring and React
- Design robust spring system that can support 2-5mil users.
- Work alongside other team members to integrate various components into finished product
- Work closely with product owner to create stories
- Continuously create new and interactive features that would help to improve user experience and user engagement.
- Assist with troubleshooting of issues as needed
- Participate in the design and architecture of software solutions
- Assist in developing and maintaining continuous integration pipelines
Ā
Salary range : 15 lpa - 30 lpa or more depending on candidate experience.
Skills required :Ā
Ā
You will be best qualified if you have experience with several (not all) of the following:
Ā
- JAVA
- Python (Flask and Django)
- Spring/Spring Boot
- React
- Hibernate
- Linux
- REST
- Kafka
- Mysql
- AWS
- ELK Stack (Elasticsearch)
- CI/CD Pipelines
Qualifications:
- 2+ years of experience in Java based technologies
- 1+ years of experience in Python
- Experience in designing databases and system architectureĀ
- 1+ years of experience in Front end technologies like HTML, CSS, JavaScript and ReactJs
Why join us?
- You will get to work with an experienced team who has worked in multiple startups.Ā
- 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
Ā
Responsibilities
- Ideate, execute & take ownership of complete project from scratch
- Create and design User-focused focused SAAS with high end experienceĀ Ā
- Optimize existing architecture for performance, scalability & functionalityĀ
- Generate modular & clean codesĀ
- Deploy & maintain projectās infrastructure with zero downtimeĀ
Skill Sets
- Sharp communication skillsĀ
- Fluent in Problem Solving, Data Structures And Algorithms
- Strong in Java Spring Boot & Python Django languages & frameworks
- Experience with database design & familiar with RDBMS database like Postgresql as well as no SQL databasesĀ
- Good with writing unit test cases & integration test casesĀ
- Well versed in writing Asynchronous codes or technologies
- Exposed to various AWS technologies like EC2, Cognito, API Gateway,ECS etc.
- Exposed to Pub-sub technologies like SQS,Kafka, RabbitMQ, etc.Ā
- Familiar with caching tools like Redis, HazleCaste, etc.Ā
- Exposure to DevOps and Big Data is a plus.
Required Skill:
⢠Good hands-on experience with Java and JEE
⢠Good hands-on experience with Microservices
⢠Good experience in UI frameworks (HTML, Java Script, HTML5, JSP, Ajax)
⢠Good understanding of Spring, Spring boot, Spring Integration
⢠Good experience with service oriented architecture and REST, JSON, XML, SOAP
⢠Good experience with any Directory technology LDAP
⢠Good Experience with a relational database like Oracle
⢠Experience working with Agile Methodology
⢠Experience in using RTC, code quality tools, defect tracking tools
⢠Good experience with code reviews
⢠Excellent team player with good organizational, communicational, analytical and logical skills.
⢠Good understanding of the web browsers and web applications
Desired Skills:
⢠Good experience with Ping product like PingAccess and Ping Federate
⢠Apache Camel
- Hands-on Java Engineers, with experience building consumer-facing or enterprise applications using Java stack ā Spring, Hibernate, MySQL
- Strong problem solving and analytical skills
- Strong understanding of Object-Oriented Programming concepts and Design patterns.
Do You Know? (Skills good to have)
- Exposure to building service-oriented distributed systems
- In building systems that process big data in a distributed environment, either in real-time streaming or offline batching.
- In messaging systems like Kafka, RabbitMQ, kinesis, etc.
- In real-time computation tools like Storm / Spark or Hadoop-based tools.
- In Data warehousing technologies like Redshift, BigQuery, etc.
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It can be taking our own product and customizing as per the customer requirements or developing applications from the scratch.







