Frontend Developer at Calypsu · Remote only · 1 - 5 years · ₹3.6L - ₹8.4L / yr (ESOP available) · Bootstrapped · Remote only · Posted 2 Feb 2022

The ideal candidate will be responsible for designing, developing, testing, and debugging responsive web and mobile applications for the company. Using JavaScript (React), HTML, and CSS, this candidate will be able to translate user and business needs into functional frontend design. Someone with prior experience with Gatsby, Hasura, Redux, etc and live projects to showcase will get prioritised.
Responsibilities
- Designing, developing, and testing UI for mobile and web applications
- Build reusable code and libraries for future use
- Accurately translate user and business needs into functional frontend code
Qualifications
- Bachelor's degree or equivalent in Computer Science
- 2+ years' experience in frontend development
- Familiarity using Scrum/Agile development methodologies
- Experience building object oriented web applications in JavaScript, HTML5, and CSS3

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Job Title: Senior Frontend Developer (Angular) – L4
Location: Mumbai
Experience: 7–12 Years
Role Overview
We are seeking an experienced Angular Developer (L4 level) 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
Seniority Level
L4 (Senior Individual Contributor)
Expected to drive modules independently and influence technical decisions
- Proficiency in Angular (v8+) and TypeScript.
- Strong knowledge of HTML5, CSS3, and JavaScript/ES6+.
- Hands-on experience with RxJS for reactive programming.
- Experience with state management libraries like NgRx or similar.
- Familiarity with RESTful APIs and JSON data structures.
- Understanding of authentication and authorization mechanisms (OAuth, JWT).
- Experience with Angular CLI for project setup and management.
- Proficiency in browser developer tools for debugging.
- Strong experience with Jasmine, Karma, or other testing frameworks.
- Familiarity with build tools like Webpack or Vite.
Opportunity:
We are looking for a young and enthusiastic personality who loves UI design and be at the forefront of creating exceptional user interfaces for our laundry industry. We believe that user-centric design ultimately leads to the best products, so we listen closely to our users, both external and internal. As an engineer on our close-knit, cross-functional team, you'll be an active voice in shaping our product.
Responsibilities:
User Interface Development:
● Develop and maintain responsive and user-friendly web and mobile user interfaces using HTML, CSS, and JavaScript frameworks.
● Ensure consistent and pixel-perfect implementation of UI designs across different browsers and devices.
Optimization:
● Optimize UI code and assets for performance, speed, and scalability.
● Implement responsive design principles for seamless user experiences on various screen sizes.
Cross-Functional Collaboration:
● Work closely with UI/UX designers to translate design concepts and wireframes into functional web interfaces.
● Collaborate with product managers, back-end developers, and QA engineers to deliver high-quality products.
Testing and Debugging:
● Perform testing and debugging to identify and resolve front-end issues and ensure a smooth user experience.
● Stay updated on industry best practices and emerging technologies.
Required Candidate Profile:
Education: Bachelor's degree in Computer Science, Web Development, or a related field is preferred.
Front-End Development Skills:
● Proficiency in HTML5, CSS3, JavaScript, and front-end development frameworks (e.g., React, Angular, Vue.js).
● Strong understanding of responsive web design principles.
Experience: Previous experience in front-end development, with a portfolio demonstrating your skills and projects you've worked on.
Cross-Browser Compatibility: Knowledge of cross-browser compatibility issues and solutions.
Problem-Solving: Strong problem-solving skills and the ability to debug and troubleshoot front-end issues effectively.
Communication: Excellent communication and teamwork skills, with the ability to collaborate with cross-functional teams.
Adaptability: Ability to adapt to changing project requirements and deadlines.
As a UI Developer on our team, you'll have the opportunity to shape the user interfaces of our digital products, contribute to the development of innovative features, and enhance the overall user experience.
Frontend Developer (ReactJS)
Company Profile
Egregore Labs (www.egregorelabs.com) is a financial software company founded in 2017 by Prashant Vijay (ISB, Tulane) & Hari Balaji (IIM Ahmedabad, IIT Madras) both of whom have spent over a decade each in Financial Services, with a majority of their experience at Goldman Sachs across New York, Hong Kong & Singapore in roles across Trading, Quant & Technology.
Opportunity
We are looking for an experienced Frontend engineer with ReactJS development experience to join our team.
Here’s are some of the things you might have to do on any given day:
- Implement responsive and performant UIs with user centered approach with frontend technologies including ReactJS, Javascript(ES 6), Typescript, SCSS, etc
- Write meaningful test cases for frontend &
- Integrate our products with 3rd party products/tools/services
- Develop Infrastructure for delivering services using a performance driven approach, build databases, schedule automated jobs, etc
Ideal Background / Experience
- At least 5 yrs of diverse experience in web development for product or services oriented environment with exposure to working production deployments
- Expertise in programming using Python/ReactJS or similar scripting languages
- In-depth exposure to technologies used in web-based SaaS products, including REST APIs
- Sound understanding of Postgres and NoSQL databases such as MongoDB
Nice to have exposure to any of
- AWS
- Azure
- ELK
- Object Relational Models (SQLAlchemy, etc)
- Google APIs
- Microservices Architecture Pattern
- NodeJS / ExpressJS
Work From Home
Responsibilities:
-
Works as part of a team to continually refresh and enhance our users’ web experiences using an Agile Development Methodology.
-
Build and ship features with an understanding of Javascript, CSS and HTML best practices.
-
Coordinate with back-end engineers to provide a cohesive experience.
Must-Have:
-
2+ years of extensive exposure in developing web applications using the latest front-end technologies
-
Expertise in the following area:
-
HTML5, CSS3, JavaScript and JS frameworks, such as jQuery,
-
Responsive & Adaptive web design
-
CSS frameworks like SASS/LESS
-
Able to work both independently and in a team environment.
-
Adequate knowledge of Version Control Systems like Git
Mandatory Skills to have:
-
Drupal Must-Have:
-
Prior hands-on experience with Drupal Projects.
Looking for a dynamic go-getter attitude UI developer with at least 3+ years of product development experience in building great UI with neat code.
RESPONSIBILITIES
Product design and development
Work on different areas of the platform
Build, optimise and enhance the UI performance
- 3+ years of experience in product development
- Experience with Angular 2+, Ionic 3+ is must
- Working with RESTful web services within web applications
- Should be comfortable working with git
- Should enjoy hacking things together to create a proof of concept, but always good at quality production code
- Capable of executing tasks with minimal guidance
- BE Computer Science, MCA or equivalent
- Cloud app development experience
- Developed micro services
- Strong NodeJS experience
- Experience with RabbitMQ is a PLUS
- Experience with MQTT is a PLUS
- Fullstack experience and especially with ReactJS desired
- Experience with SQL and NOSQL databases
- Strong communication skills
Responsibilities
- *You will be working on AI/IOT cloud and responsible for architecture and hands on coding.
- *We need someone who can engage in conversations about technical architecture with internal team and external customers.
- *You will be responsible for creating architecture document, writing pseudo code, explaining design and teststrategy,review work by others in the team, give good guidance, and ensuring the delivery of high-quality software.
- *We are looking for Can do it attitude, and ability to deliver with high velocity and high-quality at the same time.
Role
- Work as part of a small team to build React Native iOS / Android applications.
- Design, build and maintain excellent React Native applications with clean code.
- Implement pixel perfect UI's that match designs.
- Implement clean, modern, smooth animations and transitions that provide an excellent user experience.
- Integrate third-party API's.
- Developing new user-facing features using React Native.
- Building reusable components and front-end libraries for future use
- Translating designs and wire-frames into high-quality code
- Optimising components for maximum performance across a vast array of android and ios devices.
- Release applications to IOS and Google Play stores.
- Work with native modules when required.
Skills
- Strong proficiency in React Js, React Native, JavaScript, TypeScript, Object Oriented Programming - 2+ years of professional experience working with React Native
- Deep knowledge of component state management experience (specifically in React Native)
- Familiarity with native build tools, like XCode, Gradle
- Good understanding of Redux
- Ability to work through new and difficult React Native issues and contribute to libraries as needed.
- Ability to create and maintain continuous integration and delivery of React Native applications.
- Ability to understand business requirements and translate them into technical requirements
- A knack for bench-marking and optimisation
- Must have - Javascript, React JS, React Native, Typescript
- Good to have - Andriod/iOS, Express.JS, Angular, VUE, Team Lead experience/Scrum Master, Design Experience
- Working Experience on building Dashboards, UI Prototypes, Internal Tools
- Profile - Independent, Self-Organised, Problem Solver
Hiring For
Front-End Engineer - I / II / III
Radical is a platform connecting data, medicine and people -- through machine learning, and usable, performant products. Software has never been the strong suit of the medical industry -- and we are changing that. We believe that the same sophistication and performance that powers our daily needs through millions of consumer applications -- be it your grocery, your food delivery or your movie tickets -- when applied to healthcare, has a massive potential to transform the industry, and positively impact lives of patients and doctors. Radical works with some of the largest hospitals and public health programmes in India, and has a growing footprint both inside the country and abroad.
As a Full Stack Engineer at Radical, you will:
- Work closely with all stakeholders in the healthcare ecosystem - patients, doctors, paramedics and administrators - to conceptualise and bring to life the ideal set of products that add value to their time
- Write code on the front-end, the back-end and anything it takes to solve the problems and delight users both internally and externally
- Build systems which have an extraordinary emphasis on capturing data that can help build better workflows, algorithms and tools
- Work on high performance systems that deal with several million transactions, multi-modal data and large datasets, with a close attention to detail
We’re looking for someone who has:
- Familiarity and experience with writing working, well-documented and well-tested code in at least two of the following: React/Redux (preferred), NodeJS (preferred), Golang and Python
- Proficiency in the features of the language they are using, with knowledge of standards and best practices (Eg: ES2015 and above, Python 3.5 and above, React Hooks/HOC/Redux)
- Knowledge of databases, and familiarity with REST API patterns
- Experience integrating with a wide variety of external tools and services
- Experience navigating AWS and leveraging appropriate services and technologies rather than DIY solutions (such as hosting an application directly on EC2 vs containerisation, or an Elastic Beanstalk)
It’s not essential, but great if you have:
- An established track record of building systems from scratch
- Experience with microservices and decomposition of monolithic architectures
- Proficiency in automated tests
- Proficiency with the linux ecosystem
- Experience in deploying systems to production on cloud platforms such as AWS
- Experience in TypeScript
- Meaningful open source contributions
The position is open now, and we are onboarding immediately.
Please write to us with an updated resume, and one thing you would like us to see as part of your application. This one thing can be anything that you think makes you stand apart among candidates: it can be an interesting hobby project that you’ve self-hosted, a research paper that’s been published, a collection of blog posts you’ve written, a repository you maintain, or your contributions to a major library.
Radical is based out of Delhi NCR, India, and we look forward to working with you!
We're looking for people who may not know all the answers, but are obsessive about finding them, and take pride in the code that they write. We are more interested in the ability to learn fast, think rigorously and for people who aren’t afraid to challenge assumptions, and take large bets -- only to work hard and prove themselves correct. You're encouraged to apply even if your experience doesn't precisely match the job description. Join us.









