
We are seeking a talented Java Full Stack Developer to join our team.
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. As a Java Full Stack Developer, you will be responsible for designing, developing, and maintaining enterprise applications using Java and Angular.
You will collaborate with cross-functional teams to define, design, and ship new features, and you will work closely with Architects to ensure the technical feasibility of designs and implement them accordingly.
Required Skills:
- Exp. - 5 to 9 years.
- Experience in Core Java 8 and above, Spring (including Core, WebMvc, Batch, Cloud etc).
- 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 be able to analyze, design, develop and test complex, low-latency client-facing applications.
- Develop user interfaces for modern web applications using Angular.
- Experience with HTML5, CSS3, and JavaScript.
- Good development experience with RDBMS, preferably DB2/Sybase databases.
- Good knowledge of multi-threading and high-volume server-side development.
- Basic working knowledge of Unix/Linux.
- Excellent problem solving and coding skills in Java.
- Strong interpersonal, communication and analytical skills.
- Should be able to express their design ideas and thoughts.
Good to have Skills:
- Prior experience in investment banking / capital markets.
- Experience with cloud platforms such as AWS, Azure, or Google Cloud Platform.
- Knowledge of DevOps practices and CI/CD pipelines.
- Familiarity with Agile methodologies.
- Contributions to open-source projects.
- Relevant certifications (e.g., Angular, Java).

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
Role Overview
We are seeking an enthusiastic Software Engineer (Full Stack) with 3- 5 years of experience to join our growing team in Noida. In this role, you will play a pivotal part in designing and developing innovative SaaS products, contributing across both backend and frontend stacks, and helping drive digital transformation in a traditionally paper-driven domain.
This is a high-impact role where your work will directly influence the future of rare disease diagnostics in India and globally.
Responsibilities
- Contribute to all facets of software development and design
- Break down complex problems into modular, scalable solutions
- Write clean, efficient, well-commented code (Java, JavaScript, HTML, CSS)
- Develop robust and scalable web applications using Java Spring Boot and Hibernate
- Build and maintain RESTful APIs and integrate third-party services
- Work with MySQL databases and write optimized SQL queries
- Collaborate in Agile teams—participate in sprint planning, stand-ups, retrospectives
- Perform bug fixes, troubleshoot technical issues, and ensure system stability
- Design technical documentation and automated test suites
- Stay updated with emerging technologies and tools relevant to the tech stack
- Maintain a productive in-office work environment with essential infrastructure
Requirements
Experience
- 3-5 years of hands-on software development
- Experience working in Agile teams using tools like Azure DevOps or JIRA
Technical Skills
- Proficient in: Java, Spring Boot, Hibernate, MySQL, RESTful APIs
- Strong front-end development using JavaScript, HTML, CSS
- Solid understanding of Object-Oriented Design and common design patterns
- Skilled in SQL and database interactions
- Experience with token-based authentication and test-driven development
- Familiarity with Git for version control
Soft Skills
- Strong analytical and troubleshooting abilities
- Excellent communication and team collaboration skills

- Hands-on expertise in managing technical teams and work closely with business stakeholders
- Should be familiar with card testing and POS ecosystem.
- Experience with designing APIs and building platform integrations in Commerce, POS, FinTech and Payments
- Payment’s domain experience.
- Extensive experience on Base24 & SWITCH part for payment format.
- Exposure on ISO8583 Messaging system.
- API understanding and creation.
- Working knowledge on cryptographic algorithms (RSA, EC, AES, SHA variants), TLS/SSL protocols. C Symetric and A symetrics, K.M.S.
- Digital Payments technical knowledge - QR/ POS/ UPI/ BQR
- Understanding of CI/CD pipelines, Kubernetes, containerization, Docker
- Must have strong technical skills in Android APK and iOS development Concept and Web services.
- Supportability, monitoring, ops in general.
- Accurate cost models to deploy and operate
- Extensive experience in TLOG’s, data integration with downstream applications, and impact of POS changes on different financial, legal, compliance, loss prevention, etc. applications.
- Extensive experience with payment systems 7861 (EMV, payment middleware, encryption, tokenization, settlement, offline scenarios,).
- Extensive experience with different types of payment methods including credit, debit, gift cards (Both closed loop and open loop), PLCC, PayPal, AliPay, checks, etc. as well as different payment form factors like Tap N Go, contactless, swipe, EMV, Mobile, etc.
- Extensive experience with payment devices (pin pads, printers, registers, scanners).
- Experience in Node.js / Java / Python, building REST APIs, with experience/exposure to front end stack like JavaScript & React / Angular.
- Experience with Storage systems - RDBMS, NoSQL (Cassandra/MongoDB), Redis/Memcache/Aerospike.
- Experience in messaging tools like Kafka/AWS Kinesis etc...
- Design expertise for performance, scalability, fault tolerance and high availability
Technical Competencies Required:
- Experience with POS systems and Payments domain.
- Demonstrated experience for systems architecture, design, and integration for POS systems
- Java and/or Node.js. Experience building micro services (REST APIs) using Node.js
- Experience with one or more RDBMS databases like MySql, PostGreSQL
- Experience with one or more NoSQL databses like MongoDB, Cassandra, DynamoDB, Aerospike, Elastic Search, Redis, neo4j etc.,
- Caching technologies like: Redis, Elasticache,
- Cloud Providers like: AWS/ Google Cloud / Azure
- CI / CD : Jenkins, Docker, Kubernete
About the job
Whirldata Inc. is an AI/Data Sciences/App Dev company established in 2017 to provide management and technology consulting services to small and medium enterprises across the globe. We are headquartered in California and our team works out of Chennai. The specific focus is on
- Helping clients identify areas where Data Sciences and AI-based approaches can increase revenues, decrease costs or enhance customer engagement experience
- Help clients translate business needs into process flows for exploratory and cutting-edge applications
- Provide appropriate and targeted solutions that can achieve the planned objective
Whirldatas management team consists of individuals with a combined 45+ years of management and technology consulting experience, spanning multiple verticals such as finance, energy, retail, manufacturing and supply chain/logistics. Please look up our website and go through the blogs/videos/articles to find out more about us.
Working Philosophy
Whirldata works on the principle that, larger business goals come first and any technology-intensive solutions need to support necessary business goals. Hence all engagements start as a management consulting exercise and solution building follows after a thorough understanding of business needs.At Whirldata, we put our minds together, mix technology, art & math to deliver a viable, scalable and affordable business solution. We are passionate about what we do because we know that our work has the power to improve businesses. You can join our team working at the forefront of new technology, solving the challenges that impact both the front-end and back-end architectures, and ultimately, delivering amazing global user experiences.
Who we are looking for:
Full Stack Engineer (Position based in Chennai)
The following criteria are mandatory requirements and we strongly encourage that you apply only if you meet all these criteria:
1. Minimum 3 years of work experience
2. Proven capability to understand clients business needs
3. At least one demonstrable stint of architecting a database from scratch
4. Multiple programming language capabilities a must. In-depth knowledge of at least one programming language
5. Willingness to wear multiple hats depending on our business needs will be a priority
6. At least 2 years of hands-on experience in front-end development
7. Knowledge of current tools, platforms and languages an absolute must
8. Hands-on experience in cloud technologies and project management capabilities will be considered favourably
What do you get in return
- AI, Data Sciences and App dev require individuals who are both business and tech-savvy. We will turn you into one and make you a rockstar!
- You will get to work in an environment where your effort helps the customer and you will get to see it
- We will provide on-the-job training that will make you a doer and not a talker on data sciences, AI and app dev
- Opportunities to shine and pave your own way forward. We are good at identifying your talents and providing a platform where you will get immense satisfaction from demonstrating the same.
- Of course - we will pay you well too!
If you are interested - please apply with a small note with your thoughts on why you find this opportunity exciting and why you are willing to consider a move.
Position Summary
Position will be responsible to design, develop and install software solutions. This role requires building high-quality, innovative and fully performing software in compliance with coding standards and technical design Software.
Required Skills
Prerequisites:
HTML 5
CSS
Bootstrap, Angular Material
JavaScript/JQuery
Typescript
angular 2, 4, 5,6 ,7 (any)
Able to integrate existing API
Rx JS and Stores concept
ES5 and ES6
karma and jasmine
Exp. on REST/SOAP based web services, JSON/XML
Requirements for development:
VS Code editor
Node.js
NPM
Angular CLI
Git/GitHub
Essential Functional & Responsibilities
Execute full software development life cycle (SDLC),
Write well-designed, testable code Ability to understand business requirements and translate them into technical requirements
Produce specifications and determine operational feasibility
Integrate software components into a fully functional software system,
Develop software verification plans and quality assurance procedures Document and maintain software functionality,
Troubleshoot, debug and upgrade existing systems
Deploy programs and evaluate user feedback
Comply with project plans and industry standards
Ensure software is updated with latest features
Assists in coding, unit testing, and debugging new software or making enhancements to existing product.
Education and Experience
BE/B Tech/MCA/Equivalent degree in Computer Science or a related technical field from an accredited university or college with 4 – 7 years of demonstrated experience and successful track record.
-
7+ years of overall software development experience.
-
Hands-on experience with backend languages like Python, Java and Javascript.
-
2+ years of distributed cloud systems architecture.
-
Good understanding of SQL and experience in designing database structures.
-
Understanding of frontend development and frameworks at a high level.
-
High availability and fault tolerance systems design experience.
-
Test Driven Design practitioner and good understanding of unit Testing and comprehensive test suite building.
-
Customer focused with good analytical thinking and problem solving.
-
Metrics based progress monitoring and reporting capabilities.
-
Flexibility to interface with cross timezone teams.
-
Should have led cross-functional teams like frontend, backend, UI/UX, devops, QA, etc.
-
Experience in security practices for web applications.
Note: Hands on experience in Angular is also must.
Define code architecture decisions to support a high-performance and scalable product with a minimal footprint.
Collaborate well with engineers, researchers, and data implementation specialists to design and create advanced, elegant and efficient systems.
Experience implementing applications using Angular.
Experience creating front end applications using HTML5, Angular
Hands-on experience with JavaScript Development on both client and server-side
Experience with modern frameworks and design patterns
Knowledge of the following will be considered as an advantage:
Consumer Web Development Experience for High-Traffic, Public Facing web applications
Experience with cloud technologies also a plus
Creating secure RESTful-based web services in XML and JSON, Javascript, JQuery
Version control (SVN, Git).
• Design and code the excellent workflow, features, or modules in the Simplify360 suite.
• Tackle challenging engineering and product problems, create solutions to customer's problems.
• Create new ideas with our design teams to continually iterate on the experience.
• Work cross-functionally to evaluate the relative importance of and need for product initiatives.
• Take ownership of modules from design to implementation and deployment.
Requirements
• Great software design and development skills. Deep knowledge of design, coding, and implementation.
• Ability to work both independently and in cooperation with others.
• A sense of urgency and ownership over the product.
• Comfortable with full-stack projects and able to build a minimum working and prototypes quickly.
• Fluency with both front-end (e.g., html/css/javascript, bootstrap, jquery) and back-end technologies used, primarily Core Java, J2EE, Struts, Hibernate.
• Knowledge of Solr, Kafka would be an added advantage.
• Knowledge of Big Data solutions like Hadoop, HBase would be an added advantage.
• Great attitude towards work and people.
Job Title: Full Stack Developer
Experience: 6-8 years
Location: Pune
Mandatory Skills Sets
- Expert level design & coding skills .NET framework. Must have wide range of exposure to all .NET framework components like ASP.Net with C#, MVC Ado.Net, WPF, WCF etc. Unit Test Framework
- Good exposure to UI technologies like HTML, CSS, Java Script, JQuery, JQuery, Bootstrap, Angular
- Work on relational database systems, Object Oriented Programming and web application development
- Non-relational database – Mongo DB/Postgres
- Agile development methodologies and techniques & tools
- Experience in web services, Microservices
- Experience in developing complex/custom application
- Should be able to mentor Software Engineers to support design, code and meet software quality code standards as well as independently design and deliver projects
- Technical Hands on, Passionate, creative and team player
- Solving critical business problems and strong delivery focused
- Excellent Communication and problem-solving skills
Preferred Skills Sets
- Experience in cloud native application development using Azure or AWS will be an advantage
- Direct customer communication with European/US customers.
- Customer site work experience







