
Work Location - Bangalore (Should be ready to relocate)
Kindly go through the JD & company details if interested please revert with below details & acknowledge with your availability.
Mode of work: Hybrid weekly 2/3 Times Mumbai/ Bangalore location.
While you may already know about Wissen and the company history, here is a quick rundown for you.
INTERVIEW PROCESS:
- Hacker earth assessment
- Round 1
- Round 2
- Final Round
About Wissen Technology:
• 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. We help clients build world class products.
• Our workforce consists of 550+ 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 has grown its revenues by 400% in these five years without any external funding or investments.
• Globally present with offices 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.
• Wissen Technology has been certified as a Great Place to Work®.
• Wissen Technology has been voted as the Top 20 AI/ML vendor by CIO Insider in 2020.
• Over the years, Wissen Group has successfully delivered $650 million worth of projects for more than 20 of the Fortune 500 companies.
We have served client across sectors like Banking, Telecom, Healthcare, Manufacturing, and Energy. They include likes of Morgan Stanley, MSCI, State Street, Flipkart, Swiggy, Trafigura, GE to name a few.
Website : www.wissen.com
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.
Job Description:
As per our conversation, please find below the job description for your review.
· Strong written/verbal communication skills
· Minimum 4-14 Years of Core Java Programming with Collections Framework, Concurrent Programming, Multi-threading (Good knowledge in Executor service, Fork join pool and other threading concepts)
· Good knowledge of the JVM with an understanding of performance and memory optimization.
· 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.
· While you may already know about Wissen and the company history, here is a quick rundown for you.

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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Required Skills: CI/CD Pipeline, Data Structures, Microservices, Determining overall architectural principles, frameworks and standards, Cloud expertise (AWS, GCP, or Azure), Distributed Systems
Criteria:
- Candidate must have 6+ years of backend engineering experience, with 1–2 years leading engineers or owning major systems.
- Candidate must be from a product-based organization with a startup mindset
- Must be strong in one core backend language: Node.js, Go, Java, or Python.
- Deep understanding of distributed systems, caching, high availability, and microservices architecture.
- Hands-on experience with AWS/GCP, Docker, Kubernetes, and CI/CD pipelines.
- Strong command over system design, data structures, performance tuning, and scalable architecture
- Ability to partner with Product, Data, Infrastructure, and lead end-to-end backend roadmap execution.
Description
What This Role Is All About
We’re looking for a Backend Tech Lead who’s equally obsessed with architecture decisions and clean code, someone who can zoom out to design systems and zoom in to fix that one weird memory leak. You’ll lead a small but sharp team, drive the backend roadmap, and make sure our systems stay fast, lean, and battle-tested.
What You’ll Own
● Architect backend systems that handle India-scale traffic without breaking a sweat.
● Build and evolve microservices, APIs, and internal platforms that our entire app depends on.
● Guide, mentor, and uplevel a team of backend engineers—be the go-to technical brain.
● Partner with Product, Data, and Infra to ship features that are reliable and delightful.
● Set high engineering standards—clean architecture, performance, automation, and testing.
● Lead discussions on system design, performance tuning, and infra choices.
● Keep an eye on production like a hawk: metrics, monitoring, logs, uptime.
● Identify gaps proactively and push for improvements instead of waiting for fires.
What Makes You a Great Fit
● 6+ years of backend experience; 1–2 years leading engineers or owning major systems.
● Strong in one core language (Node.js / Go / Java / Python) — pick your sword.
● Deep understanding of distributed systems, caching, high-availability, and microservices.
● Hands-on with AWS/GCP, Docker, Kubernetes, CI/CD pipelines.
● You think data structures and system design are not interviews — they’re daily tools.
● You write code that future-you won’t hate.
● Strong communication and a let’s figure this out attitude.
Bonus Points If You Have
● Built or scaled consumer apps with millions of DAUs.
● Experimented with event-driven architecture, streaming systems, or real-time pipelines.
● Love startups and don’t mind wearing multiple hats.
● Experience on logging/monitoring tools like Grafana, Prometheus, ELK, OpenTelemetry.
Why company Might Be Your Best Move
● Work on products used by real people every single day.
● Ownership from day one—your decisions will shape our core architecture.
● No unnecessary hierarchy; direct access to founders and senior leadership.
● A team that cares about quality, speed, and impact in equal measure.
● Build for Bharat — complex constraints, huge scale, real impact.
Wissen Technology is now hiring for Java Developer with hands on experience in Core Java, multithreading, algorithms, and data structure.
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 highly motivated and expert team which has made a mark as a high-end technical consulting.
Required Skills:
Experience - 3+.
Experience in Core Java 5.0 and above, CXF, Spring.
Extensive experience in developing enterprise-scale n-tier applications for financial domain. 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, preferably Sybase database.
Good knowledge of multi-threading and high-volume server-side development.
Experience in sales and trading platforms in investment banking/capital markets.
Basic working knowledge of Unix/Linux.
Excellent problem solving and coding skills in Java.
Strong interpersonal, communication and analytical skills.
Should have the ability to express their design ideas and thoughts.
Job responsibility The Lead Developer contributes, to create a customer’s solution, in the building phase of the software development lifecycle. The Software Engineer is responsible for performing the detailed design of application and technical architecture components and classes in accordance to the specification provided by the Solution Architect, for coding of SW components, and for the early testing phases (component testing), and system testing support
Should have handled and leaded a team of front end and back developer and deliver projects on time.Hands on experience in Java, Python, scripting
- Design, implement, deploy and support web-based applications and web services using server technologies stacks that include Java, MySQL
- Experience in Java/J2EE using web frameworks Play or Spring boot, REST API Development and ORM (JPA, Hibernate eBean etc.)
- In depth knowledge of Design patterns and Data structures
- Databases - MySQL, Oracle, SQL
- Solid understanding of concepts like Web Services, SOA, REST APIs, Message Queue, Caching, Distributed/Scalable Architecture
- Secure application development best practices, such as OWASP
- Document and maintain all design documents and involve in review process.
- Experienced problem solving and debugging skills.
- Good verbal and written communication and interpersonal skills
- Experience in Agile methodology is added advantage
- Knowledge of Cloud Knowledge /Azure
- Must know about Unix knowledge
- experience in Elastic search
Job Description:
Engage in code design, testing, integration, deployment, and enhancements
Write high-quality code and take responsibility for tasks
Solve performance bottlenecks
Communicate and collaborate with product manager, QA, and UI/UX teams
Deliver with quality, on-time in a fast-paced start-up environment
Have a strong sense of code quality
Candidate Profile:
Bachelor’s/Master’s degree in Engineering, Computer Science (or equivalent experience)
At least 5+ years of relevant experience as a back-end engineer
Excellent Java and object-oriented development skills
Experience in building and scaling microservices
Strong problem-solving skills, technical troubleshooting, and diagnosing
Solid knowledge of RDBMS and NoSQL technologies
Experience in developing back-ends for enterprise systems
Knowledge of debugging performance and optimization techniques
Experience in Java, Mongo, MySQL, AWS technologies, ELK stack, Spring boot, Kafka
Good knowledge of cloud technologies eg. AWS
Demonstrated ability to deliver in a fast-paced environment
Job Description
We are looking for a developer to help maintain the existing Java applications, and to guide development of the next generation tools. The right individual for this role must be capable of building applications in Java, using modern architectures. Should be hands on in Object Oriented Languages (Java, C# and Go), Cloud Based Technologies (AWS, DevOps and Serverless), Front End Frameworks (Angular, React JS, Spring Boot, Spring React, Node.js), Cutting Edge Data Tools (Python, Spark, Machine Learning) and Next Generation technologies (AI, Blockchain) etc. You should be comfortable with application coding based on design and specifications, and also be comfortable working with application protocols such as JSON RPC, SOAP, and REST. The candidate must be a top-notch Java developer committed to becoming an integral part of and fostering growth within our development team.
Primary Responsibilities:
- Working with the architects and development lead, documents and develops best practices for development, and deployment of applications, and works with members to foster growth within the team.
- Develop user interface components and implementing them following well-known React.js workflows (such as Flux or Redux)
- Predicts application development requirements based on changes in underlying architecture
- Either individually or leading a team of resources, determines hardware/software systems requirements and leads systems hardware/software design. Analyzes, designs, programs, debugs, supports, and modifies software enhancements and/or new products used in local, networked, or Internet-related computer programs.
- Partners with the IT Architect during the initial stages of the project/solution to ensure the accuracy of business cases and that the solution will meet the business need.
- Completes documentation and procedures for installation and maintenance. May interact with users to define system requirements and/or necessary modifications.
Qualifications
- 5+ years of Java development experience, ideally in a team lead role
- High level skills in Java, (preferably java 1.8 – knows to write lambda expression, understands functions etc), using the latest SDKs and tools and frameworks such as Spring boot, spring JDBC, Spring test, spring security, RxJava, etc of Java
- Experience interfacing with back-end applications using MQ, SOAP, RESTFUL services, and JSON. - Worked on at least one of JaxRs implementations.
- Strong proficiency in JavaScript, including DOM manipulation and the JavaScript object model
- Thorough understanding of React.js and its core principles
- Understands database concepts – proficient in writing relational database queries – Oracle
- Ability to develop functional, technical and user interface designs for an application that meets the defined requirements (business, system performance and standards)
- Demonstrates deep expertise in specific coding concepts and/or languages, especially around modern application architectures.
- Experience with web applications that use responsive design to better support mobile browsers.
- Experience in highly-secured online environments that use n-tier designs and extensive fire walling to enhance security.
- Experience in multi data center physical implementation models for scalability and resilience.
- Experience partnering with others to solve problems quickly and efficiently.
A highly motivated, skilled, and 3-8 years experienced JAVA Software Engineer to implement innovative solutions with a proven track record developing end-to-end scientific or business applications in JAVA with emphasis on browser-based applications.
You have oodles of experience designing and developing and documenting Enterprise applications using J2EE technologies. You have worked extensively on the new breed of Enterprise applications utilizing cutting edge technologies such as Java, JavaScript, JPA, Hibernate, spring Batch and web services.
You bring to the table…
- Object oriented skills, including an understanding of common object and web application design patterns.
- Strong in Core Java Concepts, JavaScript, JPA, Hibernate, spring, Batch, web services.
- Hands on experience with SQL
- Should possess hands of experience on Linux.
Cloudera Data Warehouse Hive team looking for a passionate senior developer to join our growing engineering team. This group is targeting the biggest enterprises wanting to utilize Cloudera’s services in a private and public cloud environment. Our product is built on open source technologies like Hive, Impala, Hadoop, Kudu, Spark and so many more providing unlimited learning opportunities.
A Day in the Life
Over the past 10+ years, Cloudera has experienced tremendous growth making us the leading contributor to Big Data platforms and ecosystems and a leading provider for enterprise solutions based on Apache Hadoop. You will work with some of the best engineers in the industry who are tackling challenges that will continue to shape the Big Data revolution. We foster an engaging, supportive, and productive work environment where you can do your best work. The team culture values engineering excellence, technical depth, grassroots innovation, teamwork, and collaboration.
You will manage product development for our CDP components, develop engineering tools and scalable services to enable efficient development, testing, and release operations. You will be immersed in many exciting, cutting-edge technologies and projects, including collaboration with developers, testers, product, field engineers, and our external partners, both software and hardware vendors.
Opportunity:
Cloudera is a leader in the fast-growing big data platforms market. This is a rare chance to make a name for yourself in the industry and in the Open Source world. The candidate will responsible for Apache Hive and CDW projects. We are looking for a candidate who would like to work on these projects upstream and downstream. If you are curious about the project and code quality you can check the project and the code at the following link. You can start the development before you join. This is one of the beauties of the OSS world.
https://hive.apache.org/" target="_blank">Apache Hive
Responsibilities:
-
Build robust and scalable data infrastructure software
-
Design and create services and system architecture for your projects
-
Improve code quality through writing unit tests, automation, and code reviews
-
The candidate would write Java code and/or build several services in the Cloudera Data Warehouse.
-
Worked with a team of engineers who reviewed each other's code/designs and held each other to an extremely high bar for the quality of code/designs
-
The candidate has to understand the basics of Kubernetes.
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Build out the production and test infrastructure.
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Develop automation frameworks to reproduce issues and prevent regressions.
-
Work closely with other developers providing services to our system.
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Help to analyze and to understand how customers use the product and improve it where necessary.
Qualifications:
-
Deep familiarity with Java programming language.
-
Hands-on experience with distributed systems.
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Knowledge of database concepts, RDBMS internals.
-
Knowledge of the Hadoop stack, containers, or Kubernetes is a strong plus.
-
Has experience working in a distributed team.
-
Has 3+ years of experience in software development.
Founded over 8 years ago, we’ve grown from a small team in India’s start up city Gurgaon to a leading global software consultancy.
Over 100+ clients all over the globe are already satisfied by our services and the list continues to grow.
Ezeiatech is the next-generation global technology company that is helping enterprises reimagine their businesses for the digital age. Our technology products, services, and engineering are built on years of
innovation, a strong culture of invention and risk-taking, and a relentless focus on customer relationships.
We expertly steer our clients through all the hurdles of their digital journey. We do it by enabling the enterprise with all the latest trends and technologies that helps prioritize the execution of change. We also empower the business with agile digital at scale to deliver unprecedented levels of performance and customer delight.
Roles & Responsibilities
• Contribute in all phases of the development lifecycle.
• Write well designed, testable, efficient code.
• Ensure designs are in compliance with specifications.
• Prepare and produce releases of software components.
• Support continuous improvement by investigating alternatives and technologies and presenting these
for architectural review.
Desired Qualifications and Experience
• Computer Science or equivalent Engineering degree.
• 2 to 4 years of professional experience as a Java Developer.
• Hands on experience in designing and developing applications using Java EE platforms.
• Excellent knowledge of Relational Databases, SQL and ORM technologies (JPA2, Hibernate).
• Experience in the Spring Framework.
• Experience with test-driven development.








