
Job Title: Frontend Developer (Angular)
Location: Mumbai
Experience: 5–12 Years
Role Overview
We are seeking an experienced Angular Developer with strong expertise in modern frontend technologies to build scalable, high-performance web applications. The ideal candidate will have deep experience in Angular, TypeScript, RxJs, ngRx, and a strong focus on unit testing and code quality.
Key Responsibilities
- Develop and maintain complex web applications using Angular (latest versions)
- Write clean, scalable, and maintainable code using TypeScript
- Implement reactive programming patterns using RxJs
- Manage application state effectively using ngRx (Store, Effects, Reducers)
- Design and implement reusable, performant UI components
- Ensure high code quality through unit testing (Jasmine/Karma or similar)
- Collaborate with backend teams, UX designers, and product stakeholders
- Optimize applications for maximum performance and scalability
- Participate in code reviews, architecture discussions, and technical decision-making
- Troubleshoot and debug complex application issues
Required Skills
- Strong experience with Angular (v10 or above preferred)
- Proficiency in TypeScript, JavaScript (ES6+)
- Hands-on expertise in RxJs (Observables, Operators, Subjects)
- Solid understanding of ngRx architecture and state management concepts
- Experience in Unit Testing frameworks (Jasmine, Karma, Jest, etc.)
- Knowledge of REST APIs and integration
- Familiarity with HTML5, CSS3, SCSS, and responsive design
- Understanding of frontend performance optimization techniques
- Experience with Git/version control systems
Preferred Qualifications
- Experience with CI/CD pipelines
- Exposure to micro-frontend architecture
- Knowledge of Agile/Scrum methodologies
- Familiarity with AWS/Azure or cloud-based deployments
- Strong problem-solving and analytical skills
Behavioral Competencies
- Strong communication and collaboration skills
- Ability to mentor junior developers
- Ownership mindset and attention to detail
- Adaptability in a fast-paced environment

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:
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Very strong hands on experience of web and mobile technologies: - HTML JavaScript, HTML5/CSS3,OOJS.
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5 + years of UI Development Experience using JavaScript Frameworks
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3+ years of Angular Development Experience
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Strong in OOJS(Mandatory)
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Has implemented coding patterns and built UI framework
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Deep knowledge of AngularJS practices and commonly used modules based on extensive work experience
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Thorough understanding of the responsibilities of the platform, database, API, caching layer, proxies, and other web services used in the system
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Creating custom, general use modules and components which extend the elements and modules of core AngularJS
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Creating configuration, build, and test scripts for Continuous Integration environments
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Cooperating with the back-end developer in the process of building the RESTful API
We are looking for a highly motivated individual that can help us solve interesting and complex problems for our clients. You will be working closely with product and engineering teams based out of the USA, Europe, and India to build proof-of-concepts, validate strategic architecture decisions, and develop modern and scalable solutions. We firmly believe that your success is our success, and we are willing to take a stake in that.
About Altir
Altir is a product engineering company that builds top-notch software products for very select companies across various industries and stages of their lifecycle. We help start-ups to Fortune 500 companies nurture and transform validated ideas into successful products by amalgamating efficient business & technology strategy, development, and engineering capabilities. We are a team of entrepreneurs, engineers, product leaders, and designers who are builders and systems thinkers coming from some of the most iconic technology companies like Microsoft, Accenture, Apple, Google, and Salesforce. We exercise thorough attention to detail at every stage – from product exploration to delivery, integrating technology, automation, and our teams' expertise into the mix. We infuse our prowess from the consumer and enterprise worlds into every client's business. Our customers work with us to be their force multipliers, disrupters and to help them create unfair advantages.
Hailing from some of the world’s most innovative technology companies, we’re a team of seasoned entrepreneurs and makers. We’ve learned what it takes to build paradigm-shifting technology and companies, but we learned it the hard way. That’s why we created Altir - to be disruptive by design. By generating a suite of knowledge resources, category-defining playbooks, and reusable technology components, we’ve productized the launch and scale of transformational companies for maximum impact.
Company Link:
Requirements
*5-10 years of software engineering experience with at least 4 years of experience in react.
*Programming languages (Typescript, JavaScript, Reactjs , redux)
*Creating fluid visual interactions. Developing and implementing mobile user experience patterns.
*Developing and maintaining iOS/Android applications from the requirements to the App Store.
Unit Test (Jest, Mocha), software design patterns and data structures.
*Excellent leadership, stakeholder management and program management skills.
*Successful experience in a properly functioning agile team would be extremely advantageous.
Required
*Design and develop user interface components using React.js This includes creating reusable components and front-end libraries for future use.
*Optimize components for maximum performance across a vast array of web-capable devices and browsers.
*Redux for state management.
*React JS developers should be proficient in modern web development.
*Implement automated testing platforms and unit tests.
*Develop and maintain user interfaces using React.js.
Must have
*Strong understanding of web technologies, including HTML, CSS, and JavaScript
*Experience with code migration and refactoring
*Strong problem-solving skills and ability to troubleshoot technical issues
*Excellent communication skills and ability to work collaboratively with cross-functional teams
*Strong attention to detail and ability to deliver high-quality code
*Ability to work in a fast-paced, dynamic environment
Benefits
*Participation in profit sharing
*Parental leave
*Opportunity to travel and work with our global team
*Flexible PTO and work timings
*Premium health insurance
*Teammate recognition awards
*Company get together, off sites and events
- Work with design and marketing team to improve website conversion rate for different sign up processes
- Work with the marketing team to improve main website KPIs - New users, average time on page, session duration are the main ones
- Write automation scripts to help automate redundant manual processes of other marketing functions– SEO, Outbound, Content, Product Marketing
- Work on our Shopify demo store to showcase new product releases and features. This is pretty interesting as you’ll get to play around with Shopify backend (the most popular eCommerce platform in the world)
- Work on building integrations and workflows between different marketing automation platforms. Our current marketing tech stack involves Salesforce, HubSpot, Reply, Similarweb and more.
- Web scraping for new growth initiatives
Collaborate with product owner to define and implement innovative solutions for the product direction, visuals and experience.
Select the right controls and UI patterns to improve usability.
Responsibilities:
- Participating in design and development activities as required for specific projects allocated
- Understand the project requirement and able to implement and complete the allocated modules independently.
- Follows established development and testing procedures to ensure quality software development which meets the requirements
- Creates and maintains documentation regarding systems being developed in order to ensure long-term maintainability
Requirements:
- BTech or equivalent degree from a reputed institute
- Proven hands-on Software Development experience
- Design & Develop HTML5 games with the help of HTML5, CSS3, JavaScript, AJAX, SVG, Pixijs library across multiple platforms(Web/ MobileTablet/ TV)
- Building reliable and efficient code for game projects
- Should understand build milestone process and meet project timeline.
- Helps drive the delivery of successful, cutting edge products by working on a team with other Developers, and Designers
- Work towards optimization and best practices, increase performance of our application
- 1 to 3+ years of development experience. (Preferably Gaming)
- Good knowledge of HTML5, CSS3, JavaScript, AJAX, SVG, JSON
- Strong understanding of Object-Oriented Programming, and Design Patterns for Games and Web Applications
- Familiarity with any of the current generation JavaScript frameworks like PixieJS, CreateJs, Starling etc
- Strong attention to detail and knowledge of robust quality assurance practices
- Strong testing, debugging, and analytical skills
Job Summary
. Developing the latest user-facing features using React.js
· Designing a modern highly responsive web-based user interface
· Building reusable components and front-end libraries for future use
· Translating designs and wireframes into high-quality code
· Learn and understand user interactions
· Optimizing components for maximum performance across a vast array of web-capable devices and browsers
· Coordinating with various teams working on distinct layers
· As a React.js Developer, you will be involved from conception to completion with projects that are technologically sound and aesthetically impressive.
Technical skills:
· Strong proficiency in JavaScript, including DOM manipulation and the JavaScript object model
· Thorough understanding of React.js and its core principles
· Ability to create a reusable stateful component using React hooks
· Prior experience with popular React.js workflows (such as Flux or Redux)
· Familiarity with more current specifications of EcmaScript
· Prior experience with data structure libraries (e.g., Immutable.js)
· Knowledge of isomorphic React is a plus
· Familiarity with RESTful APIs
· Familiarity with HTML / CSS
· GIT experience is a plus
· Knowledge of modern authorization mechanisms, such as JSON Web Token
· Familiarity with modern front-end build pipelines and tools
· Experience with common front-end development tools such as Babel, Webpack, NPM, etc.
· Familiarity with working with the siren-JSON schema for generating forms.
· Familiarity with react-hook-form
· Ability to understand business requirements and translate them into technical requirements
· A knack for benchmarking and optimization
· Familiarity with code versioning tools
· jest and enzyme for red-green tdd
· understanding of feature flag
· lint and husky hooks

Build large scale web applications with Single Page Applications (SPA) architecture.
Experience to develop MV(C) based front end frameworks.
Experience with JavaScript, HTML, CSS.
Experience with JavaScript frameworks like Angular, preferably React.JS.
Good understanding of asynchronous request handling, partial page updates, AJAX and Redux.
Proficient with Chrome Developer Tools.
Additional Preferred Qualifications
Experience in Restful API services.
Experience in using performance, analytics and UX tools.
Experience with pull request process and contributing to OSS on github.com.
Experience with unit testing frameworks Mocha and Chai.
Experience with Jenkins.









