
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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Experience : 4+ Years
📍 Location : Bangalore, India (Hybrid)
Mandatory Skills : Java 8+ (Advanced Features), Spring Boot, Apache Spark (Spark Streaming), SQL & Cosmos DB, Git, Maven, CI/CD (Jenkins, GitHub), Azure Cloud, Agile Scrum.
About the Role :
We are seeking a highly skilled Backend Engineer with expertise in Java, Spark, and microservices architecture to join our dynamic team. The ideal candidate will have a strong background in object-oriented programming, experience with Spark Streaming, and a deep understanding of distributed systems and cloud technologies.
Key Responsibilities :
- Design, develop, and maintain highly scalable microservices and optimized RESTful APIs using Spring Boot and Java 8+.
- Implement and optimize Spark Streaming applications for real-time data processing.
- Utilize advanced Java 8 features, including:
- Functional interfaces & Lambda expressions
- Streams and Parallel Streams
- Completable Futures & Concurrency API improvements
- Enhanced Collections APIs
- Work with relational (SQL) and NoSQL (Cosmos DB) databases, ensuring efficient data modeling and retrieval.
- Develop and manage CI/CD pipelines using Jenkins, GitHub, and related automation tools.
- Collaborate with cross-functional teams, including Product, Business, and Automation, to deliver end-to-end product features.
- Ensure adherence to Agile Scrum practices and participate in code reviews to maintain high-quality standards.
- Deploy and manage applications in Azure Cloud environments.
Minimum Qualifications:
- BS/MS in Computer Science or a related field.
- 4+ Years of experience developing backend applications with Spring Boot and Java 8+.
- 3+ Years of hands-on experience with Git for version control.
- Strong understanding of software design patterns and distributed computing principles.
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- Prior experience with Azure Cloud Technologies.
About Company
Espressif Systems (688018) is a public multinational, fabless semiconductor company established in 2008, with headquarters in Shanghai and offices in Greater China, India, and Europe. We have a passionate team of engineers and scientists from all over the world, focused on developing cutting-edge WiFi-and-Bluetooth, low-power IoT solutions. We have created the popular ESP8266 and ESP32 series of chips, modules, and development boards. By leveraging wireless computing, we provide green, versatile, and cost-effective chipsets. We have always been committed to offering IoT solutions that are secure, robust, and power-efficient. By open-sourcing our technology, we aim to enable developers to use Espressif’s technology globally and build smart connected devices. In July 2019, Espressif made its Initial Public Offering on the Sci-Tech Innovation Board (STAR) of the Shanghai Stock Exchange (SSE).
Espressif has a technology center in Pune. The focus is on embedded software engineering and IoT solutions for our growing customers.
About the Role
Espressif’s https://rainmaker.espressif.com/ is a paradigm-shifting IoT cloud platform that provides seamless connectivity to IoT devices to mobile apps, voice assistants, and other services. It is designed with scalability, security, reliability, and operational cost at the center. We are looking for senior cloud engineers who can significantly contribute to this platform by means of architecture, design, and implementation. It’s highly desirable that the candidate has earlier experience of working on large-scale cloud product development and understand the responsibilities and challenges well. Strong hands-on experience in writing code in Go, Java, or Python is a must.
This is an individual contributor role.
Minimum Qualifications
-
BE/B.Tech in Computer Science with 5-10 years of experience.
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Strong Computer Science Fundamentals.
-
Extensive programming experience in one of these programming languages ( Java, Go, Python) is a must.
-
Good working experience of any of the Cloud Platforms - AWS, Azure, Google Cloud Platform.
-
Certification in any of these cloud platforms will be an added advantage.
-
Good Experience in the development of RESTful APIs, handling the security and
performance aspects.
-
Strong debugging and troubleshooting skills.
-
Experience working with RDBMS or any NoSQL database like DynamoDB, MYSQL, Oracle.
-
Working knowledge about CI/CD tools - Maven/Gradle, Jenkins, experience in a Linux (or Unix) based environment.
Desired Qualifications
-
Exposure to Serverless computing frameworks like AWS Lambda, Google Cloud Functions, Azure Functions
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Some Exposure to front end development tools - HTML5, CSS, Javascript, React.js/Anular.js
-
Working knowledge on Docker, Jenkins.
Prior experience working in the IoT domain will be an added advantage.
What to expect from our interview process
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The first step is to email your resume or apply to the relevant open position, along with a sample of something you have worked on such as a public GitHub repo or side project, etc.
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Next, post shortlisting your profile recruiter will get in touch with you via a mechanism that works for you e.g. via email, phone. This will be a short chat to learn more about your background and interests, to share more about the job and Espressif, and to answer any initial questions you have.
-
Successful candidates will then be invited for 2 to 3 rounds of the technical interviews as per the previous round feedback.
-
Finally, Successful candidates will have interviews with HR. What you offer us
-
Ability to provide technical solutions, support that fosters collaboration and innovation.
Ability to balance a variety of technical needs and priorities according to Espressif’s growing needs.
What we offer
- An open-minded, collaborative culture of enthusiastic technologists.
- Competitive salary
- 100% company paid medical/dental/vision/life coverage
- Frequent training by experienced colleagues and chances to take international trips, attend exhibitions, technical meetups, and seminars.
Required skills:-
2+ years of experience in the Development of JAVA technology.
Strong Java Basics
SpringBoot or Spring MVC
Hands-on experience on Relational 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:
2+ 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.
Experience:
The candidate should have about 2+ years of experience with design and development in Java/Scala. Experience in algorithm, data-structure, database and distributed System is mandatory.
Required Skills:
Mandatory: -
- Core Java or Scala
- Experience in Big Data, Spark
- Extensive experience in developing spark job. Should possess good Oops knowledge and be aware of enterprise application design patterns.
- Should have the ability to analyze, design, develop and test complexity of spark job.
- Working knowledge of Unix/Linux.
- Hands on experience in Spark, creating RDD, applying operation - transformation-action
Good To have: -
- Python
- Spark streaming
- Py Spark
- Azure/AWS Cloud Knowledge of Data Storage and Compute side
About Increasingly
Increasingly is an award-winning, fast-growing retail technology company focused specifically on the automation of cross-selling for online retailers.
Our clients include large global corporations like Samsung, Motorola & Canon to several small to medium size retailers across the globe. Our AI-based algorithms help a customer buying a TV on Samsung to find the matching sound bar & purchase both together.
Increasingly is headquartered in London with offices in Lisbon & Bangalore. We work with clients in over 30 countries & 20 languages.
We are looking to rapidly expand our technology & product development operations in India. And we need smart, ambitious people like you who enjoy a fun yet challenging work environment.
We believe strongly that diversity & inclusion are the foundations for a lasting, incredible culture. We also believe that it’s important to get the balance right between work & life.
The job and its impact
- You possess an appetite for problem-solving and critical thinking
- Back-end development is an inherently collaborative task. It can be made very difficult if there isn’t clear and concise communication within a dev team. You are a great communicator and a great developer
- You are always looking for new ways to be a better developer. You put an effort into learning and exploring the world of back-end development in your own time
- The back-end development sphere is as changeable and unpredictable as any in tech. You are someone who achieves comfort in You are aware of the tools and new technologies that are being introduced.
- You possess good technical communication skills: Can effectively communicate project needs with both front and back-end teammates
- High emotional intelligence: Self-aware and attuned to their peers’needs
- Be the best back-end developer by sheer discipline, motivation, and effort
What essential skills you need
- 2-3.5 years’ experience in back end Java/J2EE application development with clear understanding of Microservices
- Experience in developing internet web applications using Java/J2EE technologies
- Experience in different modules of Spring framework like Dependency Injection (IoC), Spring MVC, Spring ORM along with JPA
- Experience in Java Version 0+. Good experience with JMS, Spring & Hibernate
- Experience in identifying database solutions for a given problem, preferably MySQL (good to have)
- Develop well-structured, maintainable code, delivered on time, with automated tests. We are an XP/Agile development team
- Hands on experience in using Application/Web servers like JBoss and Tomcat servers. Worked on databases like Oracle & MYSQL
- Experience with e-commerce, retail, analytics, advertising, or media would be an
What are the benefits
- You'll get to work in one of the hottest & fastest growing retail technologies in Europe right now
- You'll get paid a competitive salary & be working directly with a super experienced team of people
- You'll get a great place to come to work every day. Varied, complex, challenging & with a great culture that you can shape & change
Increasingly in the press & our awards
Forbes I https://junction.cj.com/article/increasingly-talks-tech-cju17">Commission Junction Blog I https://blog.rakutenmarketing.com/en-uk/news/technology-partner-increasingly-on-innovationand-the-value-of-dynamic-cross-selling/">Rakuten Blog I https://www.tradedoubler.com/en/blog/introducing-increasingly-market-leader-dynamic-crossselling/">Tradedoubler Blog

- Strong experience in Java Development
- Deep expertise and hands-on experience with Web Applications
- Expertise in Java, Spring Boot is an added advantage.
- Experience in Microservices
- Hands-on design experience with Web Services (REST, SOAP, etc ..).
- Strong grasp of security principles.
Nice to Have
- Spring Zuul
- Kafka
- cryptography and certificates
Abilities:
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- 7 years of hands-on experience on database development
- Very strong and hands-on in Oracle Database and PL/SQL development
- Hands on experience in designing solutions and developing for data migration projects using Oracle PL/SQL
- Experience with Oracle Argus Safety, ArisG and other Safety/Clinical systems
- Working experience in development of ETL process, DB Design and Data Structures
- Excellent knowledge of Relational Databases, Tables, Views, Constraints, Index (B Tree, Bitmap and Function Based) , Object type, Stored Procedures, Functions, Packages and Triggers, Dynamic SQL, Set transaction, pl/sql Cursor variables with Ref Cursor
Excellent written and verbal communication skills
- A Bachelors or master’s degree in engineering.
- 2-4 years of experience in software product development.
- Excellent in Data structure, Algorithms & Problem-solving skills.
- Should be willing to code in Node.js/Java/Python/ROR/Golang
- Write extensive, efficient code to address complex modules and that handles interaction between multiple components.
- Customer-focused, react well to changes, work with teams and able to multi-task.
- Must be a proven performer and team player that enjoy challenging assignments in a high-energy, fast growing and start-up workplace.
- Must be a self-starter who can work well with minimal guidance and in fluid environment
➢ Design, implement and enhance new components of the Livspace design
platform and content management platform
➢ Design new features for the e-commerce properties and front-end products
and mobile apps
➢ Maintain engineering infrastructure
➢ Have significant impact on current and future technology roadmap
➢ Contribute creatively in strategic products that will reach large audience
➢ Build a web product that users love.
Who you are:
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engineering field
➢ You have at least 3+ yrs of experience working with large scale web
products
➢ You can learn new technologies quickly
➢ You have strong communication and collaboration skills
➢ You have prior ownership of the delivery of an entire feature/subsystem
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➢ Javascript, AngularJS, JQuery, HTML, CSS
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