
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.

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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Job Summary:
We are seeking a highly skilled and self-driven Java Backend Developer with strong experience in designing and deploying scalable microservices using Spring Boot and Azure Cloud. The ideal candidate will have hands-on expertise in modern Java development, containerization, messaging systems like Kafka, and knowledge of CI/CD and DevOps practices.Key Responsibilities:
- Design, develop, and deploy microservices using Spring Boot on Azure cloud platforms.
- Implement and maintain RESTful APIs, ensuring high performance and scalability.
- Work with Java 11+ features including Streams, Functional Programming, and Collections framework.
- Develop and manage Docker containers, enabling efficient development and deployment pipelines.
- Integrate messaging services like Apache Kafka into microservice architectures.
- Design and maintain data models using PostgreSQL or other SQL databases.
- Implement unit testing using JUnit and mocking frameworks to ensure code quality.
- Develop and execute API automation tests using Cucumber or similar tools.
- Collaborate with QA, DevOps, and other teams for seamless CI/CD integration and deployment pipelines.
- Work with Kubernetes for orchestrating containerized services.
- Utilize Couchbase or similar NoSQL technologies when necessary.
- Participate in code reviews, design discussions, and contribute to best practices and standards.
Required Skills & Qualifications:
- Strong experience in Java (11 or above) and Spring Boot framework.
- Solid understanding of microservices architecture and deployment on Azure.
- Hands-on experience with Docker, and exposure to Kubernetes.
- Proficiency in Kafka, with real-world project experience.
- Working knowledge of PostgreSQL (or any SQL DB) and data modeling principles.
- Experience in writing unit tests using JUnit and mocking tools.
- Experience with Cucumber or similar frameworks for API automation testing.
- Exposure to CI/CD tools, DevOps processes, and Git-based workflows.
Nice to Have:
- Azure certifications (e.g., Azure Developer Associate)
- Familiarity with Couchbase or other NoSQL databases.
- Familiarity with other cloud providers (AWS, GCP)
- Knowledge of observability tools (Prometheus, Grafana, ELK)
Soft Skills:
- Strong problem-solving and analytical skills.
- Excellent verbal and written communication.
- Ability to work in an agile environment and contribute to continuous improvement.
Why Join Us:
- Work on cutting-edge microservice architectures
- Strong learning and development culture
- Opportunity to innovate and influence technical decisions
- Collaborative and inclusive work environment
- 3+ year of experience in Development in JAVA technology.
- Strong Java Basics
- SpringBoot or Spring MVC
- Experience in AWS.
- 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:
- 3+ 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.
- 2.5+ year of experience in Development in JAVA technology.
- Strong Java Basics
- SpringBoot or Spring MVC
- Experience in AWS.
- 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
Qualifications:
- A Bachelor’s degree in Computer Science (or equivalent experience)
- M-Tech or advanced degree a plus
- Hackathon participation and accolades are a plus
Job Role:
- 4+ years of object-oriented Java / J2EE development
- Full SDLC experience (requirements gathering, architecture, development, QA, etc)…
- Experience with Spring (MVC, IOP/DI, REST, Security) & Hibernate/Spring
- Experience with SOAP / REST web services
- Knowledge of SQL
- Knowledge of No SQL concepts, understanding of Solr, Redis and Mongo DB is desirable
- Must have worked on any one messaging solutions
- Bonus Points for micro service design and development experience
- Bonus points for any mobile development experience
- Used Agile methodology
- Bonus Points for experience working on Unix, shell scripting & Build Systems
- Experience in performance optimization is an added advantage
About Us:
Avarna derived from Sanskrit means one with a fun loving nature but having no form, no color, or marks. We at Avarna Capital solve the most interesting questions in sports analytics. Diligence, productivity and transparency defines the work culture at Avarna. We are a team of
highly motivated and innovative people all working remotely so emphasis on communication, accessibility, and accountability are our key focus to build a strong culture at Avarna.
Resposibilities:
1. Integrate Kafka pipelines into the company's current infrastructure
2. Recommended appropriate solutions to enhance the current software stack
3. Utilizing the latest and most innovative technology in solving business problems
4. Take ownership of project delivery and the entire SDLC
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Preferred Education & Experience:
-
Bachelor’s or master’s degree in Computer Engineering, Computer Science, Computer Applications, Mathematics, Statistics or related technical field or equivalent practical experience. Relevant experience of at least 3 years in lieu of above if from a different stream of education.
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Well-versed in and 5+ years of hands-on demonstrable experience with:
▪ Object Oriented Modeling, Design, & Programming
▪ Microservices Architecture, API Design, & Implementation
▪ Relational, Document, & Graph Data Modeling, Design, & Implementation -
Well-versed in and hands-on demonstrable experience with:
▪ Stream & Batch Big Data Pipeline Processing
▪ Distributed Cloud Native Computing
▪ Serverless Computing & Cloud Functions -
5+ years of hands-on development experience in Java programming.
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3+ years of hands-on development experience in one or more libraries & frameworks such as Spring Boot, Apache Camel, Akka, etc.;
extra points if you can demonstrate your knowledge with working examples.
2+ years of hands-on development experience in one or more Relational and NoSQL datastores such as Amazon S3, Amazon DocumentDB, Amazon Elasticsearch Service, Amazon Aurora, AWS DynamoDB, Amazon Athena, etc. -
2+ years of hands-on development experience in one or more technologies such as Amazon Simple Queue Service, Amazon Kinesis, Apache Kafka, AWS Lambda, AWS Batch, AWS Glue, AWS Step Functions, Amazon API Gateway, etc.
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2+ years of hands-on development experience in one or more technologies such as AWS Developer Tools, AWS Management & Governance, AWS Networking and Content Delivery, AWS Security, Identity, and Compliance, etc.
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Well-versed in Virtualization & Containerization; must demonstrate experience in technologies such as Kubernetes, Istio, Docker, OpenShift, Anthos, Oracle VirtualBox, Vagrant, etc.
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Well-versed with demonstrable working experience with API Management, API Gateway, Service Mesh, Identity & Access Management, Data Protection & Encryption.
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Hands-on experience with demonstrable working experience with DevOps tools and platforms viz., Jira, GIT, Jenkins, Code Quality & Security Plugins, Maven, Artifactory, Terraform, Ansible/Chef/Puppet, Spinnaker, etc.
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Well-versed with Storage, Networks and Storage Networking basics which will enable you to work in a Cloud environment.
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Experience : 5+Years
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Job Location : Remote/Pune
We are looking for an experienced engineer with superb technical skills. You will primarily be responsible for architecting and building large scale data pipelines that delivers AI and Analytical solutions to our customers. The right candidate will enthusiastically take ownership in developing and managing a continuously improving, robust, scalable software solutions. The successful candidate will be curious, creative, ambitious, self motivated, flexible, and have a bias towards taking action. As part of the early engineering team, you will have a chance to make a measurable impact in future of Thinkdeeply as well as having a significant amount of responsibility.
Although your primary responsibilities will be around back-end work, we prize individuals who are willing to step in and contribute to other areas including automation, tooling, and management applications. Experience with or desire to learn Machine Learning a plus.
Experience
12+ Years
Location
Hyderabad
Skills
Bachelors/Masters/Phd in CS or equivalent industry experience
10+ years of industry experience in java related frameworks such as Spring and/or Typesafe
Experience with scripting languages. Python experience highly desirable. 5+ Industry experience in python
Experience with popular modern web frameworks such as Spring boot, Play framework, or Django
Demonstrated expertise of building and shipping cloud native applications
Experience in administering (including setting up, managing, monitoring) data processing pipelines (both streaming and batch) using frameworks such as Kafka, ELK Stack, Fluentd
Experience in API development using Swagger
Strong expertise with containerization technologies including kubernetes, docker-compose
Experience with cloud platform services such as AWS, Azure or GCP.
Implementing automated testing platforms and unit tests
Proficient understanding of code versioning tools, such as Git
Familiarity with continuous integration, Jenkins
Responsibilities
Architect, Design and Implement Large scale data processing pipelines
Design and Implement APIs
Assist in dev ops operations
Identify performance bottlenecks and bugs, and devise solutions to these problems
Help maintain code quality, organization, and documentation
Communicate with stakeholders regarding various aspects of solution.
Mentor team members on best practices
Responsibilities Include
You will break down business opportunities and problems into software solutions. You will work closely with the CTO to help product and marketing stakeholders distill the product vision and roadmap, into a technology vision. You will be responsible for the evolution of an already bleeding-edge highly distributed systems at the back-end, and would need to work with front-end architects to come up with the best user experience for the gaming platform. You will be required to make decisions quickly, and work under strict timelines. You would lead technology strategy through analysis of market trends and product requirements. You would help set coding guidelines and help bring the most modern tools to keep engineering processes most efficient.
Requirements
- B.E/MS in Computer Science or equivalent.
- 10+ years or more of progressive software technology experience with at least 3 years in an architectural role.
- Completely hands on with technology and architecture. Start-up experience is a huge plus.
- Ability to quickly prototype and demonstrate technology value adds and educate + drive adoption within the extended technology team
- Excellent and robust understanding of scalable product system architecture(s), platforms and core technologies
- Demonstrated problem-solving and leadership skills to pursue correct engineering process in adverse conditions. Ability to embrace and demonstrate leadership beyond ownership
- Work with engineering leadership to setup and manage processes.
- Track record of thought leadership and out of the box thinking in the technology arena.
- Ability to work efficiently in an entrepreneurial and in a start-up environment
- A Java/Spring/Akka, Javascript or Golang rockstar.
- Deep and hands on knowledge of some of these technologies - MySQL, NodeJS, message brokers such as Kafka/RabbitMQ, NoSQL datastore such as Mongo, Cassandra, Arango, distributed caches such as Redis/memcached, container technology such as Docker and Kubernetes etc.
- Great proficiency in distributed systems design, with an ability to make the right trade-offs for creating future-proof solutions.
- Building quick PoCs and full-fledged solutions with various AWS managed services would be a big plus.









