
Job Role
· Position Title: Expert Java Engineer
· Experience Range: 9 to 12 yrs
· Location: Pune
Notice Period : Immediate Joiner
Must have Requirements
● 9+ years’ of experience working as a software developer.
● Strong proficiency in Java and Spring Boot.
● Strong experience in building applications that interact with relational databases using SQL.
● Some experience of Enterprise Java (J2EE / JavaEE / Spring) application architectures.
● History of delivering high-cadence modern applications with applied Agile methodologies, test-first development approaches, adopting CI/CD pipelines and using Git version control.

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- Good design skills and exposure to multiple software architectures.
- Strong understanding of OO/ knowledge of frameworks such as Spring/ Spring Boot/ design and good software development practices.
- Strong core server-side technologies experience (Java).
- Knowledge of Android is a huge plus.
- Strong database skills including schema design.
- Strong knowhow of data-structures and algorithms.
- Experience with configuration management, testing, deployment.
- Hands on development across technologies.
Job Requirements for Java Developer Roles
* Strong hands-on expertise in Java programming.
* In-depth understanding of Java garbage collection mechanisms and their impact on application performance.
* Ability to write clean, efficient, and maintainable code.
* Familiarity with best practices for performance optimization.
* Strong problem-solving skills and attention to detail.
Please note that you will have to attach the following documents after Round 1 that will be needed for the client submission:
- LWD confirmation
- PF service history
Mode of work: Hybrid weekly 3 Times.
While you may already know about Wissen and the company history, here is a quick rundown for you.
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, StateStreet, Flipkart, Swiggy, Trafigura, GE to name a few.
Website : www.wissen.com
5+ years of Experience designing, building and testing Java EE applications
Experience designing, implementing, and integrating Spring and/or Spring Boot
Good knowledge in recent version of Java, Oracle, JBoss, Hibernate
Experience in working with Messaging systems like Apache Kafka
Developing low level designs based on HLD
Reviewing code to check coding standards and best practices to ensure quality.
Hands on knowledge in Unit testing Framework like Junit and good understanding on Exception Handling in Java
Good Knowledge in UI like React or Angular
Experience designing SOAP / RESTful web services
Working on bug fixing and improving application performance
Familiarity with build tools such as Maven and Gradle.
Familiar with various design and architectural patterns
Familiarity with continuous integration

Founded in 2012,leader in high-assurance digital identity verification technology. Named to Forbes’ 2019 AI 50 list as one of America’s most promising AI companies, and a recent winner of API World’s Best Data API, technology applies artificial intelligence and machine learning techniques with trusted online/offline data intelligence from email, address, phone, IP, social media and the broader Internet to verify identities in real-time. Customers include three of the top five U.S. banks, seven of the top 10 U.S. card issuers, as well as the majority of leading digital banks, lenders and insurers across the U.S. We are funded by some of the world's best investors and entrepreneurs including Scale Venture Partners, Commerce Ventures, Work-Bench, Santander InnoVentures and Two Sigma Ventures.
The only way we can further our mission of becoming the single, trusted source of identity verification and eliminating identity fraud is by building the best team on the planet. This is where you come in!
We are hiring Software Engineers across all levels in Chennai!
What You'll Be Doing:
- You will partner with our globally distributed cross-functional teams (Product, Infrastructure, Engineering, Data Science) to conceptualize and develop new features and products in an Agile environment.
- You will own end-to-end delivery of software components all the way to production, owning team features or systems.
- You will be building web services and REST APIs at scale, and producing high-quality results with direct business impact.
- You will be monitoring and improving existing deployments, ensuring that we are continuously improving our product.
- You will be assisting our QA and support team in triaging and resolving production issues and addressing bugs.
What You'll Bring:
- You are interested in our tech stack (Java or Scala, SQL Databases, NoSQL, Microservices, and AWS)
- You will have strong computer science fundamentals: data structures, algorithms, various programming languages, distributed systems, etc.
- You understand engineering best practices and seek to improve engineering standards, tooling and processes.
- You write “good code” - easily understandable, secure and testable!
- You are comfortable helping drive technical decisions within our Engineering team.
- You have experience building applications at scale.
Perks & Benefits:
- Competitive base salary
- Equity - every employee is a stakeholder in our enormous upside
- A tech-first company culture driven by entrepreneurial thinking and talent
- A great team working in unison towards the same mission
- Transparency is what our product is built on—and so is our culture
- Daily catered lunch and snacks
- Generous health insurance for employees and dependents
- Flexible work schedule and work-from-home options
- Flexible PTO
We are an equal opportunity employer and value diversity of all kinds at our company. We do not discriminate on the basis of race, religion, color, national origin, gender, sexual orientation, age, marital status, veteran status, or disability status.
Relevant Experience
3 to 10 years
Job Description and Key Skills Required:
- Hands-on with any of the programming languages like NodeJS/ExpressJS, Python, Java, Php or any.
- Design and create efficient RESTful API endpoints for both internal and public consumption
- Strong understanding of database technologies such as MySQL, Postgress, Oracle , relational Database.
- Work closely with front end developers to understand required data model
- Comfortable deploying applications on AWS, and have a strong working knowledge of EC2, RDS and S3.
- Must understand overall system design, architecture , improve design and implement new processes.
- Strong understanding of sessions, cookies & local storage is must.
- Experience with in memory databases like redis basic, Memcache
- Independently think of solutions to complex requirements; possess exceptional logical skills.
- Analyse current products in development, including performance, scalability, diagnosis and troubleshooting.
- Work with the existing framework and evolve it by building reusable code & libraries
- Search and introduce new software related technologies, processes and tools.
- Bonus: You're fluent with React.
- Bonus: Interested in full-stack development.
- Bonus: Any experience of iOS/Android mobile development.
- Bonus: Experience with CI servers such as Jenkins, Travis or similar types
- Bonus: Experience with web server like Nginx
* Understanding of building architecture from product requirements.
* Experience of leading teams of developers to maximise performance.
* Knowledge of Multithreading, Thread Pooling, Background Jobs and Schedule Jobs with supporting tools and libraries.
* Working on Microservices based architecture using spring cloud, distributed application pattern and multiple data source management in the application.
* Working on Linux and Windows based OS and their command line tools.
* Working with unit testing frameworks.
* Object-Oriented development and Metaprogramming.
* Experience in working with the SQL Databases (MySQL or PostgreSQL) and No SQL. Databases (Cassandra or MongoDB).
* Knowledge of server configuration management and deployment techniques. Good to have experience in handling DevOps tools like Jenkins and containerization using Docker.
* Experience in working with different AWS cloud services.
The role of software engineer here is, to develop the application software that is being used on compactors and to do thorough software testing methodically. Expertise is needed on both embedded & application development.
- Expertise on Object oriented programming.
- Highly proficient in C# & C++. Expertise on .NET Framework, ASP.NET, JavaScript, HTML & CSS.
- Proficient in windows frameworks like WPF, WCF, etc for developing desktop applications.
- Knowledge on Microsoft Azure / other cloud technologies.
- Good knowledge on C programming and some exposure to embedded software development.
- Good at unit testing and testing frameworks like gmock, gtest, etc.
- Good at developing solutions in efficient way. Good at solving problems, quick grasper & solid analysis skills.
- Automating manual activities, drive the test automation strategy by architecting new solutions.
- Analyse test results and debug test failures in fast & efficient manner.
- Strong interpersonal & communication skills – written, verbal and presentation.
We are looking for a highly motivated developer with at least 1+ years of strong hands-on experience in Java to join our startup. You would be playing a pivotal role in contributing to the initial tech stack. You would be further responsible for designing and implementing product requirements that are highly usable, scalable, extensible, and maintainable. You should be comfortable working across different technologies/frameworks that we work on - Microservices, Java, Spring, Spring Boot, MySQL, Kubernetes, AWS.
Responsibilities and Duties:
- Design and build scalable REST APIs on Spring Boot
- Develop, test, tune for performance and deploy microservices
- Collaborate with the team, optimize and refactor the back-end architecture
- Maintain high standards of quality for code, documentation and other deliverables
- Active cross-team coordination would be expected
What are we looking for?
- 1+ year experience in Core Java & backend technologies
- Good working knowledge of design patterns & OOAD
- Excellent analytical and problem-solving skills
- The skills that we consider: Java, MySQL/RDS, Spring/ Play, Maven, Redis, Kafka/SQS, Elasticsearch, AWS
- Experience in micro-services
- Previously worked in a startup
Strong technical background in Java, spring (MVC), RESTFUL Web services and Postgres DB
Thorough understanding of the responsibilities of the platform, database, API, caching layer, proxies, and other web services used in the system
Validating user actions on the client side and providing responsive feedback
Writing non-blocking code, and resorting to advanced techniques such as multi-threading, when needed








