
JOB DESCRIPTION:
Location: bangalore
Mode of Work : 3 days from Office
DSA(Collections, Hash maps, trees, Linkedlist and Arrays, etc), Core Oops concepts(Multithreading, Multi Processing, Polymorphism, Inheritance etc) Annotations in Spring and Spring boot, Java 8 Vital features, database Optimization, Microsevices and Rest API
- Design, develop, and maintain low-latency, high-performance enterprise applications using Core Java (Java 5.0 and above).
- Implement and integrate APIs using Spring Framework and Apache CXF.
- Build microservices-based architecture for scalable and distributed systems.
- Collaborate with cross-functional teams for high/low-level design, development, and deployment of software solutions.
- Optimize performance through efficient multithreading, memory management, and algorithm design.
- Ensure best coding practices, conduct code reviews, and perform unit/integration testing.
- Work with RDBMS (preferably Sybase) for backend data integration.
- Analyze complex business problems and deliver innovative technology solutions in the financial/trading domain.
- Work in Unix/Linux environments for deployment and troubleshooting.
- Angular and AWS must skill

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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Job Title : Full Stack Developer
Experience : 5+ Years (Mandatory)
Mandatory Tech Stack : Node.js (NestJS), React.js (Next.js), React Native, PostgreSQL, AWS (Hybrid with On-Premise infrastructure) & Docker Swarm & Portainer
Location : Remote
Working Days : Monday to Saturday
Shift : Night Shift
Job Summary :
We are scaling rapidly and looking for a high-impact Full Stack Developer who thrives on solving complex problems across Web, Mobile, and Cloud Infrastructure.
The ideal candidate is hands-on, adaptable, and comfortable working in distributed systems and hybrid cloud environments, delivering end-to-end solutions with ownership and accountability.
Mandatory Technical Skills :
- Backend : Node.js with NestJS
- Frontend (Web) : React.js with Next.js
- Mobile : React Native
- Database : PostgreSQL
- Cloud : AWS (Hybrid with On-Premise infrastructure)
- OS : Linux
- Containers & Orchestration : Docker Swarm
- Container Management : Portainer
🎯 Key Responsibilities :
- Design, develop, and maintain scalable full-stack applications (Web + Mobile)
- Build and manage microservices and RESTful APIs
- Work in distributed and hybrid cloud environments
- Develop cloud-ready solutions and manage deployments
- Handle containerized applications using Docker Swarm & Portainer
- Collaborate closely with Product, DevOps, and Engineering teams
- Ensure application performance, security, and reliability
- Participate in code reviews and follow best engineering practices
- Troubleshoot, debug, and optimize applications across the stack
✅ Required Qualifications :
- Strong hands-on experience with Node.js (NestJS)
- Solid expertise in React.js (Next.js) and React Native
- Experience with PostgreSQL and backend data modeling
- Working knowledge of AWS services in hybrid environments
- Good understanding of Linux systems
- Hands-on experience with Docker Swarm & Portainer
- Strong understanding of microservices architecture
- Ability to manage end-to-end full-stack delivery
⭐ Good-to-Have Skills :
- Experience with CI/CD pipelines
- Exposure to monitoring & logging tools
- Knowledge of event-driven systems
- Experience working in high-availability systems

Mandatory Skills
- Backend: Java, Spring Boot
- Frontend: Angular
- Database: Oracle / SQL
- Node js
Job Description
Contribute to all software-development life-cycle phases including: domain and non-domain problem analysis, solution requirement gathering and analysis, solution design, implementation, code review, source-code control, source building deployment, validation, QA support, and production support.
Essential Duties and Responsibilities
• Maintain and enhance multi-tier messaging application suites (Java EE, Springframework, WAS, Oracle, DB2, MQ)
• Build and maintain IRIS4Health middle-tier message applications (IRIS Interop/Cache; Java, Drools, Kafka, Restful, MLLP, SQL)
• Build and maintain multi-tier Clinical Toxicology application (Angular, Java EE, Springframework, WAS, RHOS, Cache, SQL)
• Maintain stat-tracking application (two-tier Delphi, MySQL)
• Maintain and enhance Cytogenetics three-tier application (Java EE, WAS, DB2, Oracle, SQL, )
• Maintain and enhance Fibrosure application (Java EE, WAS, Derby)
• Define develop, validate, and release software products via agile processes for small and large projects
• Support applications and people via Kanban processes
• Collaborate with laboratory users to analyze problems, design and implement solutions for enterprise systems
• Provide support and troubleshooting of production systems according to an on-call schedule
• Document problem analysis, solution design, implementations, and system support guidelines
• Coach and train team members across lab system organizations to support and develop Java applications
• Communicate effectively and constructively with developers, QA, business analysts, and system users
• Design and depict via UML relational DB table models, object-oriented class models, messaging models, configuration models
• Understand, document, support, and improve inherited code and processes
• Help document knowledge and discovery with peer developers
Minimum Requirements
• Solid Java EE experience (Servlets, JMS, JSP, EJB, JCA, and JPA) development and support
• Solid InfoSystems Cache/IRIS for Health development and support
• A minimum of 1 years of JPA/ORM (Hibernate), Junit, XML/XSD, JSON experience or equivalent
• Solid SQL (and optionally PLSQL) experience
• Experience with Oracle DB including explain plan and or other query optimization techniques/tools
• Excellent verbal and written communication skills
• Strong UML modeling, ER and OO design, and data-normalization techniques
• Strong code-factoring philosophies and techniques
• Eclipse or NetBeans (or equivalent) IDE
• Strong understanding of client/server design, and smart recognition of separation-of-concern like functional behavior versus non-functional performance
Desired Requirements
• Java EE, Angular
• InfoSystem's Cache and/or IRIS for Health
• Springframework
• Modern deployment architectures using containers, API Gateways, load balancers, and AWS cloud based environments
• WebSphere or WebLogic, RHOS
• RESTful Web Services
• JMS interfacing, Apache Kafka, and IBM MQ
• Node.js/NPM, Bootstrap, or similar frameworks
• Git/BitBucket (git flow), Maven, Nexus, UCD, Jira (Kanban and SCRUM), agile workflow
• Unix shell script, DOS script
• SQL (optionally PLSQL)
• Design patterns
• HTML5, CSS3, and TypeScript development
• Ability to transform specific domain requirements into generalized technical requirements, and design and implement abstract solutions that are understandable and scalable in performance and reuse
• HL7 and/or Healthcare and/or Clinical Toxicology
• Oracle, MySQL, Derby DB
Greetings!
We are hiring candidates for the role "Web Application Developer" in one of the top manufacturing MNC's.
Required Skill Set: (Angular, Angular JS) and Dot Net Core.
- 2 to 5 years of experience (or equivalent understanding of software engineering)
- Familiar with one backend language (Node, Go, Java, Python)
- Familiar with Javascript/Typescript and a UI framework
- Willingness and interest in learning new tech/processes (Airflow, AWS, IaaS, etc.)
We are hiring for Java / Spark Developer.
Good IT experience in JAVA technology and its frameworks
Hands on experience in JAVA FULL STACK development including MINIMUM 2YEAR IN SPARK
Experience in writing SQL for any one Relational database ex. Oracle
Extensive knowledge in HiveSQL Hadoop
Experience in Version control through Bitbucket Issue tracking through JIRA CICD
- Own the development/improvement of products and features.
- Own the responsibility for creating a great user experience on the products and features you work on.
- Build features end-to-end: both the user interfaces and the backend APIs.
- Set technical standards and lead the team in building a world-class scalable software development process.
- Lead large-scale design updates and rollouts.
- Partner with infrastructure engineers to scale the product.
- Investigate state-of-the-art frameworks and tooling to build our next-generation architecture.
- Guide and mentor junior team members
- 8+ years of relevant front-end development experience, previous start up experience is highly desirable.
- Experience building, running, and debugging single-page apps in a modern JavaScript framework.
- Demonstrated knowledge of React, Redux and CSSAbility to work independently as well as cross-functionally with other engineering teams and product.
- Tech Lead / Management experience.
- Experience with full-stack development.
- Experience with building APIs using spring boot.
- Experience with front-end test frameworks (Jasmine/Mocha/Jest)
- Exposure to mobile platforms
● Demonstrated experience as a software engineer, with at least 5-8 years’ experience
in technology roles
● Experience working on complex systems and cloud architectures, preferably in a B2B
or enterprise context
● Significant experience with the Java programming language and frameworks such as
Spring & SpringBoot
● Good working experience with front-end Javascript frameworks such as ReactJS
● Experience optimizing databases and SQL queries for high-performance
● Good knowledge of AWS services, design patterns and practices - ideally certified
● Experience and keen understanding of the value of working in agile teams
● A “quality-first” mindset, with experience working in continuous integration
environments
● Highly effective at communicating, and comfortable whiteboarding design ideas with
teams of engineers, product managers, and business analysts
● Desire to challenge the status quo and maturity to know when to compromise
● Respect for other team members and a highly collaborative approach to working and
learning together
Product: Online Payments, Acquiring side
Mandatory Skills: FSD+Micro+Angular+Web
Imp Skills
Payment Gateway, Docker, Kubernets, AWS, Mule -I6
Skills Required:
- Previous working experience as a MERN/MEAN Stack Developer for 1 year (Minimum).
- In depth knowledge of NodeJS, ExpressJS or Restify
- Experience implementing applications using Angular 2+ versions or React
- Experience creating front end applications using HTML5, Angular/React, LESS/SASS
- Hands on experience with JavaScript
- Development on both client and server-side
- Experience on Angular 2+ and React Js will be an plus point
- Experience on both MEAN/MERN Technologies will be an advantage.
Development of Web based Applications using latest technologies like, AngularJS, Node.js, SQL Developer, MongoDb. Designing and developing user interfaces using AngularJS best practices. Adapting interface for modern internet applications using the latest front-end technologies, Writing JavaScript, CSS, and HTML, Developing product analysis tasks.







