
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

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
Similar jobs
Wissen Technology is now hiring for a Java Developer - Bangalore 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 10 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 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.
Job Summary:
As a Java Spring Boot Developer, you will play a key role in designing, developing, and maintaining robust backend services and APIs. With 2.5+ years of experience, including knowledge in Kotlin, you will work alongside a cross-functional team to build scalable and performant systems.
Key Responsibilities:
- Design, develop, and maintain efficient, reusable, and reliable Java and Kotlin code
- Build and consume RESTful APIs and microservices using Spring Boot
- Ensure the best possible performance, quality, and responsiveness of applications
- Collaborate with product managers, QA engineers, and DevOps for end-to-end delivery
- Troubleshoot and resolve performance bottlenecks, bugs, and technical issues
- Participate in code reviews, knowledge sharing, and continuous improvement
Required Skills & Qualifications:
- 2.5+ years of experience with Java and Spring Boot
- Strong understanding of RESTful APIs, MVC, and microservices architecture
- Experience with relational and NoSQL databases
- Proficiency with Git and Agile/Scrum methodologies
Preferred Skills:
- Familiarity with Docker, Kubernetes, and CI/CD tools
- Exposure to cloud platforms such as AWS or Azure
- Experience with unit testing and test automation frameworks
Job Description :
- We are a Fintech Company based in Pune, a B2B Trade Digitization platform for SMEs and Corporates to collaborate and work with Financial Institutions to raise short term fundings for payables and receivables financing.
- We are thus well placed to help Corporates and their Supply Chains to meet their GST needs.
Technologies :
- The platform is built using a polygot technology stack
- Platform Backend : JVM
- Web Layer : ReactJS and related ecosystem, HTML, Javascript, CSS, Bootstrap
- API & Business Layer : Kotlin and functional programming
- Client Apps and Customer Integrations: Kotlin, Jersey ReST Framework, home grown optimized HTTP and SQL libraries
- Mobile Apps: Android, iOS
- Database : MySQL - JVM - Hibernate & Exposed as ORM library - Python - SQLAlchemy as ORM library
- Build Tools : Gradle, Shell Scripting, AWS Code Build, Jenkins
- Ops Automation : Ansible, Terraform
- Servers : Ubuntu Linux
- Version Control : GIT
- Test Automation : Python - unittest, pyhamcrest, freshen, nose. JVM - Junit, Kotlin Test
- Cloud Providers : Amazon AWS, Linode
Requirements :
- We are a self organized engineering team with a passion for programming and solving business problems for our customers.
- We are looking to add 2 members in our team having hands on technical experience of 2-6 years.
- We encourage our team to continuously learn new technologies and apply the learnings in the day to day work even if the new technologies are not adpopted.
- We strive to continuously improve our DevOps practices and expertise to form a solid backbone for the product, customer relationships and sales teams which enables them to add new customers every week to our financing network.
As an engineering team member, you will :
- Work collaboratively with product, customer support and DevOps team to build, enhance, maintain, deploy and operate our systems.
- Continuously automate operational processes to improve efficiencies and productivity and enhance customer experience
- Work closely with the architect to continuously refactor the system architecture and design to meet the changing landscape triggered by technology changes and business growth
- Work with the DevOps team to build and maintain tools for deployment, monitoring and operations.
- Ensure that development processes and deliverables always adhere to the mandates laid down for various certifications (PCI and ISO 27001 in particular)
Skills required :
- Pre-requisites : Competent in Java, database, HTML, Javascript, CSS
- Should be passionate about technology and ready to deep dive into programming
- Should have sound expertise of writing testable code and appreciate defect free coding
- Should be willing to handle Ops automation and production support
- Should be able to reason/argue/discuss/suggest solutions and alternatives
- Should be able to decipher the core problem to be solved during discussions with product team and/or customers
- Should have good communication skills and experience working in teams
- Knowledge of Python will be an added advantage
- Experience of working in financial domain will help but not a necessity
Roles and Responsibilities
• Code, develop, design and architect features related to the existing application. We
expect you to own modules end to end and take pride in the work products you
ship.
• Lead from the front, when it comes to delivering high quality work products. Serve
as a mentor to the team members
• Create and define performance metrics. Ideate, innovate and hack through the
existing systems to improve performance.
• Perform code reviews, set coding practices and guidelines within the team.
• Make sense of the product specs, be nimble in getting the issues resolved. Be a
thought leader.
Critical Functional Skills:
• Solid understanding and knowledge of Java/C/C++. You should understand the
concepts of multithreading, I/O, messaging, instrumentation etc and their
implementation in Java/Any other Object-Oriented Language.
• Proficiency in the implementation of algorithms and the use of advanced data
structures to solve problems in computing. A solid foundation in the principles of
computer science is desired.
• Ability to write clean, modular, and loosely coupled code by the use of design
patterns.
• He/She should be able to break down and architect complex software systems. For
example- Build
• Cars Availability Engine for Ola.
• Strong decision-making ability
• Deep expertise in at least one programming language & tech stack.
• Substantial experience in building complex and scalable solutions.
• Strong object-oriented design skills, ability to apply design patterns, and an uncanny
ability to design intuitive module and class-level interfaces
• The ability to do deep problem solving and build elegant, maintainable solutions to
complex problems.
• Experience leading multi-engineer projects and mentoring junior engineers
• Experience with full life cycle development in any programming language on a Linux
platform
• Comprehensive operational experience including, optimizations, deployments and
tuning servers like apache/mysql/tomcat/solr
• Prior experience in working with Agile software methodologies (XP, Scrum), TDD,
and Continuous Integration(CI/CD) a plus.
• Experience in building data-driven web application design and development is a plus
• Expert level experience in building a scalable, large and complex business
application.
Experience Required:
• Typically with an experience of 5+ years of development experience in a product
firm.
• Must have lead, designed, architected and delivered at least 1 project in his previous
assignments independently.
Minimum Qualifications Required:
• Btech/MS from a reputed Institute
• Deep expertise with any or combination programming languages: Java, C++, C#,
Ruby, Scala,
• Go any object-oriented high-level proprietary or open-source language with strong
programming constructs. We are not skill-specific but go by strength in
competencies
• Machine coding
• Single machine in-memory program
• Need a working code with functionality
• Readable and well-designed code with right abstractions, separation of concerns,
• right design patterns
• Performant code with concurrency and efficient data structures
• Write test cases covering the happy path and edge cases
• Problem Solving
• Choose the right combination of data structures to solve the problem
• Identify most edge cases for the problem
• Identify opportunities of parallelism: utilizes multi-core solutions where applicable
• Design & Architecture
• Distributed systems design and system interaction
• Identify API signatures
• LLD with class design
• Solve for performance & availability
Are you curious, motivated, and forward-thinking? At FIS you’ll have the opportunity to work on some of the most challenging and relevant issues in financial services and technology. Our talented people empower us, and we believe in being part of a team that is open, collaborative, entrepreneurial, passionate and above all fun.
About the team
In today’s highly competitive private equity market, firms must not only deliver superior returns, but also respond to more stringent reporting requirements and increasing demands for information – both from within and outside their organization. Throughout the industry there is mounting pressure on organizations to do more, requiring a clear technology strategy that not only addresses the demands of today, but also enables the growth and performance of tomorrow.
What you will be doing
This position would be part of CORE product development team to work on:
- Development of new modules & functionality.
- Fixing of the production bugs for existing clients.
- Contribute in team meetings to provide suggestions or raise concerns where necessary
- Participate actively in Agile SCRUM & play the role that SCRUM team demands
- Participate in technology discussions to perform POC’s & help in scaling the application
- Provide technical guidance to other team members.
What you bring:
Knowledge / Experience
- 3-5 Years of hands-on experience on Java with knowledge of Garbage Collector, JMS, Event Based programming, Collections, Java Streams, Spring Dependency Injection Framework.
- Experience in Angular 2+.
- Experience working with Spring and Hibernate frameworks.
- Working knowledge on application Servers (WildFly)
- Strong experience in REST Web Services.
- Good knowledge in writing DB queries (Oracle, SQL Server)
- Experience working in Unix/Linux environment and proven knowledge of scripting languages
- Exposure to MQ / AMQ messaging system.
- Sound knowledge of Design Patterns
Skills
- Desired to have knowledge of JMX
- Agile – SCRUM or XP or TDD methodology preferred.
Qualifications
- Bachelor’s degree in Computer Science or equivalent
Competencies
- Fluent in English
- Excellent communicator – ability to discuss technical solutions to internal and external parties and adapt depending on the technical or business focus of the discussion
- Attention to detail – track record of authoring high quality documentation
- Organized approach – manage and adapt priorities according to client and internal requirements
- Self-starter but team mindset - work autonomously and as part of a global team
What we offer you
- A multifaceted job with a high degree of responsibility and a broad spectrum of opportunities
- A broad range of professional education and personal development possibilities – FIS is your final career step!
- A competitive salary and benefits
- A variety of career development tools, resources and opportunities
With a 50-year history rooted in the financial services industry, FIS™ is the world's largest global provider dedicated to financial technology solutions. We champion clients from banking to capital markets, retail to corporate and everything touched by financial services. Headquartered in Jacksonville, Florida, our 53,000 worldwide employees help serve more than 20,000 clients in over 130 countries. Our technology powers billions of transactions annually that move over $9 trillion around the globe. FIS is a Fortune 500 company and is a member of Standard & Poor’s 500® Index.
FIS is committed to protecting the privacy and security of all personal information that we process in order to provide services to our clients. For specific information on how FIS protects personal information online, please see the https://www.fisglobal.com/-/media/fisglobal/files/policies/privacy/online-privacy-notice/english.pdf?la=en">FIS Online Privacy Notice.
Few words about Unify Technologies: Unify a Digital Engineering company. We help our clients by providing Digital Engineering Services to develop high-quality products. We have extensive experience in software product engineering and a successful track record of delivering on aggressive delivery plans without compromising on the quality in Cloud, Mobile, and Data practices.
If you are looking for a solid opportunity to put your Computer Science skills to test you are in the right place. We need some hard-core programming help to help enhance our Data management frameworks used to move data between platforms and systems seamlessly.
Employment Type: Full-Time
Position: Sr SDE - Senior Software Development Engineer (Java Back-End Development)
Project: Product-Apple’s Maps and Advertising Platforms
Experience: 4-8 Years
Key Skills: Java Programming + Spring Boot + REST / Java + SQL
Joining time: Immediate to 30 days
Work Location: Hyderabad - India
Education: Master’s/Bachelor’s degree in Computer Science, Statistics, Engineering or a related technical discipline will be preferred
Detailed Job Description: At UNIFY, great ideas have a way of becoming great products, services, and customer experiences very quickly. Bring passion and dedication to your job and there's no telling what you could accomplish.
We are looking to hire extraordinary individuals with strong communication and interpersonal skills and ability to work effectively across multiple business and technical teams. As a part of this team, you will build cutting edge software service, one that is continually innovating and is proud of making a difference.
You should be a self-starter, motivated, with exceptional interpersonal skills as well as a positive and flexible approach to problems. The applicant should have the ability to thrive in a fast-paced, tight deadline delivery timeline. As a part of this dynamic team, the applicant will help us build the product experience on a global scale.
If you’ve responded positively to the above questions and want to work in a great, international team, that is passionate, creative, ambitious, open to knowledge-sharing, and loves to cooperate with each other - join us!
Key Qualifications:
-
Minimum of 4 years experience implementing large-scale production systems
-
Hands-on experience with design, development and productizing highly available, distributed and scalable transactional enterprise systems.
-
Strong hands-on programming experience in Java/J2EE building middleware or backend applications.
-
Strong development experience of microservices architecture in a highly distributed environment with web services, Spring, Spring Boot, Hibernate and SOA
-
Experience with RDBMS like Oracle and NoSQL databases such as MongoDB, Couchbase, Elasticsearch
-
Sharp troubleshooting skills and real-world systems deployment experience.
-
Proven track record with rapid development cycles and demanding schedules
-
Experience doing Software Development using Agile methodologies
-
Understanding or experience working on Cloud technologies is a plus
Roles & Responsibilities:
-
Design and implement web APIs.
-
In this role, you will be involved in the end to end cycle of design, development and deployment of core services for mission-critical customer-facing applications.
-
Results-oriented and demonstrate a high degree of ownership and accountability.
-
Experience handling distributed vendor resources
-
Creative problem solver and excellent collaborator, who thrives in a fast-paced, innovative environment.
-
Communicate quickly and effectively; vertically and horizontally through the organization.
-
Influence others to get things done.
-
Must possess excellent problem-solving & analytical skills.
-
Handle ambiguity and solve problems despite uncertainties.
-
Ability to lead large projects focusing on innovation, teamwork and results.
-
Proven track record of achieving outstanding results in a professional career










