

Responsibilities:
- Develop and maintain high-quality, efficient, and scalable backend applications.
- Participate in all phases of the software development lifecycle (SDLC)
- Write clean, well-documented, and testable code adhering to best practices.
- Collaborate with team members to ensure the successful delivery of projects.
- Debug and troubleshoot complex technical problems.
- Identify and implement performance optimizations.
- Participate in code reviews
- Hands-on experience with Springboot, Java 8 and above.
- 5-8 years of experience developing Java applications.
- Knowledge about at least one messaging system like Kafka, RabbitMQ etc.
- Required React developer requirements, qualifications & skills:
- Proficiency in React.js and its core principles
- Strong JavaScript, HTML5, and CSS3 skills
- Experience with popular React.js workflows (such as Redux)
- Strong understanding of object-oriented programming (OOP) principles.
- Experience with design patterns and best practices for Java development.
- Proficient in unit testing frameworks (e.g., JUnit).
- Experience with build automation tools (e.g., Maven, Gradle).
- Experience with version control systems (e.g., Git).
- Experience with one of these databases – Postgres, MongoDb, Cassandra
- Knowledge on Retail or OMS is a plus.
- Experienced in containerized deployments using Docker, Kubernetes and DevOps mindset
- Ability to reverse engineer existing/legacy and document findings on confluence.
- Create automated tests for unit, integration, regression, performance, and functional testing, to meet established expectations and acceptance criteria.
- Document APIs using Lowe’s established tooling.

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 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
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- Caching technologies like: Redis, Elasticache,
- Cloud Providers like: AWS/ Google Cloud / Azure
- CI / CD : Jenkins, Docker, Kubernete


Key Responsibilities:
• Design low level specification for the feature/module in consultation with product architect(s).
• Closely work with product managers/owners, architect(s) to understand the business requirements and code optimally.
• Propose and implement different algorithms in software code for high performing, high throughput, and low latency product features.
• Should be able build, make enhancements and maintain existing native web application user interface based on NodeJS, JavaScript or TypeScript, Angular, React, and Next/Vue.
• Develop and maintain generic solutions and utilities that can be integrated into any product.
• Integrate intelligent product performance indicators into the product to periodically monitor and take preemptive actions.
Key skills and experience required for the job:
• Technology: OOAD, Java/J2EE, Data Structures and Algorithms, Design Patterns, Spring Boot, Microservices/Cloud Native architecture, Cloud Foundry, Docker, K8S, RDBMS, SQL, NoSQL, Redis/HazleCast, jUnit, Mockito, Rabbit MQ, JMS, Apache Camel, KAFKA, WebSocket messaging, gRPC, GraphQL, Angular/React/Vue.js
• Source Control: Git, GitLab, GitHub etc.
• Design: UML, ArchiMate, EA Sparx, MS Visio, Lucid Chart, Figma
• DevSecOps: GitHub Workflows, Helm, Jenkins, CloudBees Flow, uDeploy, Nexus Repo, Site Reliability etc.
• Cloud Technologies: MS Azure, AKS, Azure Event Hub/Grid, Azure Storage, GCP, PCF, AKAMAI, APIGEE or equivalent.
• Code Quality: Sonar, MF Fortify, SAST, DAST
• Process: Safe Agile, DevOps, TDD and BDD
• Experience: 6 – 10 Years of software product development using Java/J2EE along with a minimum of 2 years of web user interface development using any TypeScript framework.
• Education: Bachelors/master’s in engineering or equivalent.
• Soft Skills: Communication, Analytical thinking, Problem Solving, Judgement & Decision Making, Planning & Organizing and Teamwork
Nice to have skills for the job:
• APM : Knowledge of AppDynamics, Grafana, Dynatrace, Splunk, Elk

We are looking for a Full Stack Developer-REMOTE Position
Strong knowledge of HTML, CSS, JavaScript, and JavaScript frameworks (e.g., React, Angular, Vue)
• Experience with backend technologies such as Node.js, DynamoDB, and PostgreSQL.
• Experience with version control systems (e.g., Git)
• Knowledge of web standards and accessibility guidelines
• Familiarity with server-side rendering and SEO best practices
Experience with AWS services, including AWS Lambda, API Gateway, and DynamoDB.
• Experience with Dev Ops- Infrastructure as Code, CI / CD, Test & Deployment Automation.
• Experience writing and maintaining a test suite throughout a project's lifecycle.
• Familiarity with Web Accessibility standards and technology
• Experience architecting and building Graph QL APIs and REST-full services.


Responsibilities
- Responsible for the entire development process.
- Work with development teams and product managers to ideate software solutions
- Analyzing user requirements, envisioning system features and functionality.
- Design, build, and maintain efficient, reusable, and reliable codes by setting expectations and features priorities throughout the development life cycle.
- Working with Senior leadership and stakeholders to present ideas and solutions
- Design client-side and server-side architecture
- Build the front-end of applications through appealing visual design
- Develop and manage well-functioning databases and applications
- Write effective APIsTest software to ensure responsiveness and efficiency in troubleshoot, debug and upgrade software
- Create security and data protection settings.
Experience
- 5-8 years of software development experience in java.
- Knowledge of multiple front-end languages and libraries (e. g. HTML/ CSS, JavaScript/Typescript, XML, jQuery)
- Familiarity with RESTful APIs. Experience with Angular 5 Angular 8 and/or experience with React JS
- Strong debugging/troubleshooting skills.
- Good understanding of SDLC, Agile methodologies
- Proven experience as a Full Stack Developer.
- Experience developing desktop and mobile applications
- Familiarity with common stacks Knowledge of multiple back-end languages (e. g. C#, Java, Python) and JavaScript frameworks (e. g. Angular, React, Node.js )Familiarity with Docker and Kubernetes Familiarity with databases (e. g. MySQL, MongoDB), web servers (e. g. Apache) & Drools.
- Excellent communication and teamwork skills
- Great attention to detail Organizational skills

Selected candidate(s) will lead technology for the company by initially working alongside an outsourced software development team and later on being responsible for current and future software development.
Opportunity to earn ESOP / equity based on experience and performance. We're looking for candidates who are hungry to learn, can apply themselves to solve problems using techology and who are looking to make a meaningful impact with their energy and work. If this sounds like you, we'd like to hear from you.
****** Apply only if you know Angular, NODEJS, EXPRESS framework ******
Skills Required:
Problem-solving Approach
Programming Data Structures
Logic & Design concepts
Object Oriented Programming concepts
Familiarity with databases
NodeJS and its framework.


What is the role?
You will be responsible for architecting, training the team and implementing your solution. You will be working closely with the Product Managers and the tech leads/developers to come up with high-quality, resilient, and highly performant applications.
Key Responsibilities
- Design and develop SaaS-based applications based on microservices architecture.
- Work on core back-end and ensure it meets the performance benchmarks.
- Work on optimizing the middleware and backend technologies to ensure highest scalability.
- Work on best system design principles and ensure high availability.
- Designing and developing APIs for the front end to consume.
- Constantly improve the architecture of the application by clearing the technical backlog.
- Meeting both technical and consumer needs.
- Staying abreast of developments in web applications and programming languages.
What are we looking for?
An enthusiastic individual with the following skills. Please do not hesitate to apply if you do not match all of it. We are open to promising candidates who are passionate about their work and are team players.
- Education - BE/MCA or equivalent.
- Overall 8+ years of experience.
- Agnostic/Polyglot with multiple tech stacks.
- Worked on open source technologies - NodeJS, Typescript, ReactJS, MySQL, NoSQL, MongoDB, ELK, Kafka, Redis.
- Good experience with Front-end technologies like JavaScript frameworks, ReactJS, AngularJS.
- Back-end exposure - good knowledge of building API.
- Efficient in building microservices in combining server & front-end.
- Knowledge of cloud architecture especially using AWS and its features.
- Should be completely hands on and have the ability to develop quick Prototypes.
- Good understanding of CMS.
- Will be responsible for the functional/technical track of a project.
Whom will you work with?
You will closely work with the engineering team and support the Product Team of Empuls.
What can you look for?
A wholesome opportunity in a fast-paced environment will enable you to juggle between concepts yet maintain the quality of content, interact, share your ideas, and have loads of learning while at work. Work with a team of highly talented young professionals and enjoy the benefits of being at Xoxoday.
We are
A fast-growing SaaS commerce company based in Bangalore with offices in Delhi, Mumbai, SF, Dubai, Singapore, and Dublin. We have three products in our portfolio: Plum, Empuls, and Compass. Xoxoday works with over 1000 global clients. We help our clients engage and motivate their employees, sales teams, channel partners, or consumers for better business results.
Way forward
We look forward to connecting with you. As you may take time to review this opportunity, we will wait for a reasonable time of around 3-5 days before we screen the collected applications and start lining up job discussions with the hiring manager. However, we assure you that we will attempt to maintain a reasonable time window for successfully closing this requirement. The candidates will be kept informed and updated on the feedback and application status.
**Frontend**
- experience in building end-to-end frontend and backend apps or Single Page Applications.
- Should know the basics of HTTP(S), DOM, browsers, page rendering
- Should know JavaScript both for Front-end as well as Back-end, Typescript would be good to have
- Have used these Frontend libraries/frameworks: Angular 8, 10
- Have a preference for one of this for the state management: Ngrx, Redux etc
- Skills in one or more chosen frameworks/libraries like jQuery, Bootstrap, etc
**Backend and Databases**
- Experience with Nodejs/Firebase/Nestjs
- Experience MongoDB/Firestore is a must
- Knowledge of Creating RESTful services with Node.js and understanding of REST services (microservices/serverless will be plus point)
- Knowledge of Authentication, authorizations, mailing, fileuploading etc is a must
- Should know querying in mongodb along with Aggregation Pipeline, Map-Reduce,etc
- - Understanding of fundamental design principles behind a scalable application
- - Have written test cases using one of these: Jest, Mocha, Chai,Enzyme, Karma
**Good to have:**
- Work proactively in a team.
- Strong understanding of product development
- Should be a good problem solver, quick learner.
- Good analytical, problem solving and troubleshooting skills.
- Knowledge of Nestjs, Elastic Search Would be plus point
- Have strongly used one of these to keep our code Clean and Consistent: Eslint, Flow, JShint, style-lint


- Working on both front-end and back-end programming, relevant frameworks, and third-party libraries
- Building reusable code and libraries for future use.
- Participating in DevOps.
- Owning & building new modules/features end-to-end independently.
- Collaborating with other team members and stakeholders.
- Working in an agile environment to rapidly build high quality and robust features.
- Proactively discovering, evaluating, and implementing new technologies to improve development efficiency.
What you need to have:
- Master in Node.js and frameworks available for it.
- Hands-on with anyone (Angular / React / Vue) frontend framework. Hands-on with Vue will be a big plus.
- Experience with modern JS toolchains such as Webpack, Grunt, Bower, and Yeoman.
- Hands-on experience with AWS & DevOps.
- Good understanding of SQL & No-SQL Databases.
- Understanding the nature of asynchronous programming and its quirks and workarounds.
- Open Source and DevOps enthusiast.
- Comfortable with Test Driven Development.
- Can learn and adapt fast, as well as identifying and solving problems.
- Understanding of Git, SPA, PWA, Docker.
- You should also be a team player.

- Lead and direct UI team of user experience designers, UI software engineers and graphic designers.
- Design portal-style UI framework, modular and its API interfaces.
- Design intuitive look, innovative plus feel of next-generation UI.
- Collaborate with clients, product management as well as UI team.
- Design entire technical architecture of UI portal framework along with pluggable modules.
- Perform closely with customers, product management, graphic designers plus usability experts to present compelling user experience.

