
Experience: 5 TO 8
Location: MUMBAI
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. 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.
Required Skills:
- Exp. - 5 TO 8 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 multi-threading 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 Us:
At Wissen Technology, we deliver niche, custom-built products that solve complex business challenges across industries worldwide.
Founded in 2015, our core philosophy is built around a strong product engineering mindset—ensuring every solution is architected and delivered right the first time. Our commitment to excellence translates into delivering 2X impact compared to traditional service providers. How do we achieve this? Through a combination of deep domain knowledge, cutting-edge technology expertise, and a relentless focus on quality.
We don’t just meet expectations—we exceed them by ensuring faster time-to-market, reduced rework, and greater alignment with client objectives. We have a proven track record of building mission-critical systems across industries, including financial services, healthcare, retail, manufacturing, and more.
Wissen stands apart through its unique delivery models. Our outcome-based projects ensure predictable costs and timelines, while our agile pods provide clients the flexibility to adapt to their evolving business needs. Whether it’s AI/ML for unstructured data processing, cloud enablement, or data engineering, Wissen leverages its thought leadership and technology prowess to drive superior business outcomes. Our success is powered by top-tier talent. Our proprietary Interview Ninja platform ensures we hire the best, building high-performing teams that deliver unmatched results.
Today, Wissen Technology has a global footprint with 2200+ employees across offices in the US, UK, UAE, India, and Australia. Our mission is clear: to be the partner of choice for building world-class custom products that deliver exceptional impact—the first time, every time.

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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Job Description:
- Proficient in software Design and development and familiar with technologies - Java, Java-J2EE, Spring Boot, Ajax, REST API, Micro services etc.
- Working knowledge of any SQL database (MySQL, Oracle etc)
- Working knowledge of No-SQL database (Mongo or Dynamo DB)
- Experience in unit testing using Junit or Mockito
- Experience in designing and architecting systems with high scalability and performance requirements.
- Ability to design infrastructure for performance evaluation and reporting of cloud-based services, namely AWS
- In depth knowledge of key AWS services like EC2, S3, Lambda, CloudWatch etc..
- Certification on AWS architecture desirable
- Excellent communication skills
- Ability to effectively articulate technical challenges and solutions
- Skilled in interfacing with internal and external technical resources
- Good in debugging problems and mentoring teams on technical front
Roles and Responsibilities:
- Participate and contribute in platform requirements/story development.
- Contribute to the design, coding for the requirements/stories and also participate in code and design reviews.
- Develop use cases and do unit test cases and execute them part of continuous integration pipeline.
Back-End Developer
Experience 3-8 years
Job Qualifications and Skill Sets(T3-T4)
T3:
1. Bachelor's degree or above, computer or related major, more than 3 years of Java EE development experience.
2. Have a solid foundation in JAVA, have strong OOP and OOD development ideas, and be familiar with common design patterns. Have strong coding skills, have business design experience, and be able to solve more complex technical problems.
3. Proficient in using mainstream JAVA open-source frameworks, such as Spring, Spring boot, Spring cloud, myBatis, etc.
4. Familiar with MySql, capable of database design and optimization, familiar with redis caching technology, familiar with message middleware, and ElasticSearch.
5. Have strong learning ability, communication ability, teamwork ability and independent problem-solving ability, high sense of responsibility, and be able to withstand greater work pressure. Able to guide junior engineers and specialists to complete simple business development work.
6. Those with Internet platform development experience and familiarity with distribution and concurrency will be given priority
T4:
1. Bachelor's degree or above, computer or related major, more than 5 years of Java EE development experience.
2. Have a solid foundation in JAVA, have strong OOP and OOD development ideas, and be familiar with various design patterns. Have strong coding skills, have business design experience, and be able to solve more complex technical problems.
3. Proficient in using mainstream JAVA open-source frameworks, such as Spring, Spring boot, Spring cloud, myBatis, etc.
4. Familiar with MySql, capable of database design and optimization, familiar with redis caching technology, familiar with message middleware, and ElasticSearch.
5. Familiar with distributed development and application scenarios of distributed components
6. Have some experience in concurrent processing and be familiar with performance optimization
7. Have strong learning ability, communication ability, teamwork ability and independent problem-solving ability, high sense of responsibility, and be able to withstand greater work pressure. Able to guide junior engineers and specialists to complete simple business development work.
Note: Kindly apply only if your open to Work from Office Bangalore and available to join immediate to 10 days.
Interested candidates connect @Bhavani P on the LinkedIn
or message your number/ id on the cut short chat.
What you'll do?
● Develop on server-side cloud software using a serverless approach (AWS).
● Work hands-on on bringing to life IoT and Edge architectures and applications
● Work with teams on delivering key features and performance targets.
Who You Are?
● Passionate individual who loves to develop scalable backend
● Strong programming capabilities
● Understanding of cloud architecture and protocols.
● Clear thought process, believe in simplifying rather than complicating
● Argue and fight over opinions. Believe in always choosing the best
You Should Have
● Experience on NoSQL Databases and designing REST API.
● Strong fundamentals of Data structure and algorithm.
● Done related projects during graduation/post-graduation.
● Experience on AWS, AWS Lambda, AWS IoT Core, AWS Cloud Watch is a big plus.
Proficiency in Python
- Building scalable, reliable, high-performing platforms
- Managing project priorities, deadlines, and deliverables
- Participating in the entire lifecycle including analysis, development, fixing and monitoring of issues on the assigned product lines
- Maintaining a high service levels in terms of security, performance, availability, and quality
- Establishing and implementing good development practices to create a top-class, results oriented engineering culture.
Requirements :
- 7 years - 10 years of solid hands on experience in J2EE & related technologies.
- Ability to think in terms of APIs all the time
- Hands on experience in object-oriented designs and principles.
- Hands on experience in data structures, algorithms & design patterns
- Hands on experience in server side, web architecture
- Working knowledge in Spring Framework
- Knowledge in data modeling and hands on experience with at least one RDBMS, MySQL is preferred.
- Knowledge on any of the scripting languages is desirable as you may need to write scripts Javascript, HTML or any front-end frameworks experience is desirable
- Understanding on NoSQL databases.
- You can extrapolate requirements from customers and product management and distinguish between what they need vs. what they want?
- You are always on the lookout for adding configurability and extensibility to your design.
- You cannot agree with not having ability to automatically test software.
- Usability of the solution keeps you awake at nights
Senior Software Engineer - 221254.
We (the Software Engineer team) are looking for a motivated, experienced person with a data driven approach to join our Distribution Team in Budapest or Szeged to help design, execute and improve our test sets and infrastructure for producing high-quality Hadoop software.
A Day in the life
You will be part of a team that makes sure our releases are predictable and deliver high value to the customer. This team is responsible for automating and maintaining our test harness, and making test results reliable and repeatable.
You will…
•work on making our distributed software stack more resilient to high-scale endurance runs and customer simulations
•provide valuable fixes to our product development teams to the issues you’ve found during exhaustive test runs
•work with product and field teams to make sure our customer simulations match the expectations and can provide valuable feedback to our customers
•work with amazing people - We are a fun & smart team, including many of the top luminaries in Hadoop and related open source communities. We frequently interact with the research community, collaborate with engineers at other top companies & host cutting edge researchers for tech talks.
•do innovative work - Cloudera pushes the frontier of big data & distributed computing, as our track record shows. We work on high-profile open source projects, interacting daily with engineers at other exciting companies, speaking at meet-ups, etc.
•be a part of a great culture - Transparent and open meritocracy. Everybody is always thinking of better ways to do things, and coming up with ideas that make a difference. We build our culture to be the best workplace in our careers.
You have...
•strong knowledge in at least 1 of the following languages: Java / Python / Scala / C++ / C#
•hands-on experience with at least 1 of the following configuration management tools: Ansible, Chef, Puppet, Salt
•confidence with Linux environments
•ability to identify critical weak spots in distributed software systems
•experience in developing automated test cases and test plans
•ability to deal with distributed systems
•solid interpersonal skills conducive to a distributed environment
•ability to work independently on multiple tasks
•self-driven & motivated, with a strong work ethic and a passion for problem solving
•innovate and automate and break the code
The right person in this role has an opportunity to make a huge impact at Cloudera and add value to our future decisions. If this position has piqued your interest and you have what we described - we invite you to apply! An adventure in data awaits.
We are seeking extremely smart programmers who are gung ho about building large scale systems that are going to have a big impact on millions of customers.
Responsibilities:
- Design and develop products by working closely with business team.
- Gain experience with hands on coding and independent ownership of software components.
- Build performant, scalable, enterprise ready back end architectures that can support millions of users in parallel.
- Follow strong engineering best practices and champion their adoption.
Requirements:
- 2+ years’ experience in software product development and delivery.
- Bachelors or Masters degree in engineering from a reputed institute(preferably IITs, NITs, or other top engineering institutes).
- Strong grasp of CS fundamentals, algorithms and excellent problem solving abilities.
- All experience should be from good product development or e-commerce background.
- Must have shown good stability in all your previous associations.
- Have strong backend knowledge and cloud development exposure.
- Expert at Java, Spring boot, Hibernate, REST API development.
- Worked with at least 1 RDBMS (Mysql preferred). NoSql is a plus.
- Have used or are very hands-on with Microservices, Docker, Kubernetes, Gradle/Ant, Kafka, GIT/bitbucket in a very agile work place.
- Writing high quality code which is made better by unit tests and integration tests is how you work.
- Comfortable with exploring proven open source tech stack like Grafana, Kibana, Jira, Prometheus, caches like Redis/Memcached, task queues like celery, to name a few.
- Knowledge of test driven development and AWS tech stack will be a good plus.
We are scaling rapidly in user engagement (reached 150K+ daily transactions within 3 months of beta launch), and if you're looking to deal with scale, this is for you.
About Trago.in: We are a neo-trading platform where one can trade their opinions on real-time events across politics, Sports. We are building in a super-interesting category with a focus on things happening around you and giving the audience a platform to earn from opinions and knowledge.
We are a seed-funded company with marquee investors from across the globe and an amazing set of co-founders from the premier institutes of India.
To know more about us, please visit: www.trago.in
Responsibilities:
* Build the APIs and internal mechanisms of the Trago backend across all our services.
* Architect and guide building end-to-end systems optimized for speed and scale.
* Build and lead engineering teams to achieve product roadmap milestones.
* Oversee the research and development of new products and technologies.
* Be available for troubleshooting in case of backend emergencies.
Requirements:
* Bachelors in Computer Science or any Engineering domain with experience in Software Programming.
* 2-5 years of experience building large-scale software applications.
* Highly proficient with Java and knowledge of the many intricacies of Spring Boot.
* Proficient with MongoDB and Redis.
* Knowledge of Aerospike, and other databases would be a bonus. Good understanding of distributed systems (servers, databases, etc.).
* Positive and solution-oriented mindset and comfort working in a highly agile, intensely iterative software development environment.
What's in for you?
* Work directly with founders
* Freedom to experiment and get creative.
* Be Yourself, every day.
* Build for scale - We are building Trago with a mindset to scale to 100 mn+ customers in 3 years. We are presently doing 150K transactions a day, which we will scale by 100x in one year.
Digit88 is looking for an enthusiastic, self-motivated, hands-on Java/J2EE platform engineer to join the
back-end platform engineering team for our partner. Experience with a fast-paced India/US product
start-up or a product engineering services company in a developer role, building a high-performance
real-time system is mandatory. Applicants having experience in developing and maintaining large scale
messaging platforms are preferred. Applicants must have a passion for engineering with accuracy and
efficiency, be highly motivated and organized, able to work as part of a team, and also possess the ability
to work independently with minimal supervision.
To be successful in this role, you should possess
● Bachelor's degree in Computer Science or a related field with 7-9 years hands-on experience with
Java based open source tech stack
● Expertise in Core Java, Data Structures, J2EE with proven expertise in Spring MVC, Spring boot,
Microservices architecture, Web Services (Rest) in distributed systems
● Practical experience with MySQLand/or NoSQL databases like Couchbase, DynamoDB,
Cassandra
● Practical experience with Caching frameworks Memcached/Redis, Message Queues (JMS,
RabbitMQ)
● Practical hands-on experience in JavaScript and NodeJS
● Experience in building high performance, high availability REST APIs and REST clients
● Expertise with log file analysis using one or more of ELK, Splunk, Kibana
● Prior experience with CI/CD, Container architecture - Docker/Jenkins and build scripts Maven/Ant
● Experience with Kubernetes
● Prior experience in transformation to cloud platforms is preferred
● Experience with Kafka is a definite plus
● Experience with building analytics pipeline and analytics DB is a plus
● Strong practical experience in applying design patterns, multithreading concepts to solve complex
problems, strong problem solving skills
You are someone who would easily be able to
● Study and learn the latest in AI/NLP/Chatbots domain and the messaging platform
● Work closely with the US and India engineering teams to help build the Java/Spring based backend
and REST APIs.
● Closely collaborate with the principal engineer in the India engineering team in technical excellence
and ownership of critical modules; own the development of new modules and features
● Troubleshoot live production server issues; assume leadership responsibilities in the production
issue resolution lifecycle
● Handle client coordination and be able to work as a part of a team, be able to contribute
independently and drive the team to exceptional contributions with minimal team supervision
● Perform Unit Testing and Integration testing in a Continuous Deployment scenario
● Follow Agile methodology, JIRA for work planning, issue management/tracking









