Senior React.js Developer (Remote)

We are seeking a highly motivated Software Development Engineer with expertise in building scalable, extensible and user-friendly web applications. You will work with a fast paced Product Engineering team to build efficient and reusable web applications for mobile and fixed devices. 

What you’ll do:

• Architect, Design, Code reviews and build scalable applications.
• You will be engaged in identifying and addressing performance bottlenecks, and collaborate with other team members to innovate current/new products. 
• Identify, communicate and implement best practices for application engineering. 
• Ensure high scalability and performance

• You will advocate for good, clean, well-documented and performing code; define and follow standards and best practices for front-end development.

We’d love for you to have:

• Experience: 1-3 yrs recent experience of working in a scalable web product firm
• Education: B.Tech/M.Tech  in Computer Science from Top ranked colleges in India
• Excellent software development skills in developing web applications over client-side frameworks - Backbone, React (preferred) and/or angular frameworks (preferred); and server-side frameworks like node.js
• Excellent programming skills in object-oriented, modularised JavaScript, Typescript (preferred)
• Strong knowledge and working experience in server-side Event-driven programming using Node.js
• Excellent programming skills in Javascript,  jQuery, AJAX, YUI.
• Passion for writing optimized code using JS best practices  and design patterns
• Experience with JS or Java-based Unit/Integration Testing using Selenium, Appium, Selendroid
• Hands-on experience in building scalable web applications
• Excellent problem solving and debugging skills
• Good Knowledge of version control - GIT (preferred)
• Experience with the full software development lifecycle, design, develop, debug, document, and deliver (especially in a multiple site organization)
• Strong verbal and written communication skills
• Ability to deliver great results in an agile development
• Good to have: Working knowledge of web standards (i.e., REST) and OOPS
• Good to have: Experience in Data Structures, Algorithms and their optimization

Even if you don’t meet all of these qualifications above, we’d still love to hear from you. Tell us about your unique qualifications in your cover letter.

CaaStle is committed to equality of opportunity in employment. It has been and will continue to be the policy of CaaStle to provide full and equal employment opportunities to all employees and candidates for employment without regard to race, color, religion, national or ethnic origin, veteran status, age, sexual orientation, gender identity, or physical or mental disability. This policy applies to all terms, conditions and privileges of employment, such as those pertaining to training, transfer, promotion, compensation and recreational programs.

Sprinto is a leading platform that automates information security compliance. By raising the bar on information security, Sprinto ensures compliance, healthy operational practices, and the ability for businesses to grow and scale with unwavering confidence. We are a team of 200+ employees & helping 1000+ Customers across 75+ Countries. We are funded by top investment partners Accel, ELEVATION & Blume Ventures and have raised 32 Million USD in funding including our latest Series B round.

The Role

As our Lead Frontend Engineer, you will drive the technical vision for our frontend systems, architect scalable solutions, and lead a team of talented engineers. You’ll collaborate closely with product, design, and backend teams to transform complex user requirements into engaging, high-performance applications.

Key Responsibilities

• Technical Leadership: Architect and maintain a large-scale, component-driven frontend codebase optimized for speed, scalability, and maintainability.
• Team Mentorship: Lead and mentor a team of frontend engineers, fostering a culture of quality and innovation.
• Cross-Functional Collaboration: Work with product managers, designers, and backend teams to translate user stories into robust interfaces.
• Quality Assurance: Develop and oversee frontend testing suites to ensure reliability and performance.
• Optimization: Enhance application responsiveness, accessibility, and overall user experience.
• Strategic Impact: Balance technical excellence with business goals, making informed trade-offs to deliver effective solutions.

What We’re Looking For

• Experience: 8+ years building web applications, with a proven track record in leading frontend teams.
• Technical Skills:
• Expert in JavaScript/TypeScript, HTML5, and CSS3.
• Deep experience with modern frontend frameworks (e.g., React); familiarity with SSR frameworks like Next.js is a plus.
• Proficient with frontend testing tools (Jest, Cypress) and build tools (Webpack, etc.).
• Design & UX: Strong attention to detail with a passion for creating intuitive, visually appealing interfaces and managing design systems.
• Collaboration: Excellent communication skills and a collaborative, problem-solving mindset.
• Bonus: Familiarity with our current tech stack (Node.js, React, Apollo-GraphQL, Postgres, AWS) is an advantage.

Benefits

• Remote First Policy
• 5 Days Working With FLEXI Hours
• Group Medical Insurance (Parents, Spouse, Children)
• Group Accident Cover
• Company Sponsored Device
• Education Reimbursement Policy

Job Description:

We are looking for a good JavaScript developer who is proficient with React.js. Your primary focus will be on developing user interface components and implementing them following well-known React.js workflows (such as Flux or Redux). You will ensure that these components and the overall application are robust and easy to maintain. You will coordinate with the rest of the team working on different layers of the infrastructure. Therefore, a commitment to collaborative problem solving, sophisticated design, and quality product is important.

Responsibilities

• Developing new user-facing features using React.js
• Building reusable components and front-end libraries for future use
• Translating designs and wireframes into high-quality code
• Optimizing components for maximum performance across a vast array of web-capable devices and browsers

Skills:

• Strong proficiency in JavaScript, including DOM manipulation and the JavaScript object model
• Thorough understanding of React.js and its core principles
• Experience with popular React.js workflows (Redux)
• Familiarity with newer specifications of ECMAScript
• Experience with data structure libraries (e.g., Immutable.js)
• Knowledge of isomorphic React is a plus
• Familiarity with RESTful APIs
• Knowledge of modern authorization mechanisms, such as JSON Web Token
• Familiarity with modern front-end build pipelines and tools
• Ability to understand business requirements and translate them into technical requirements
• A knack for benchmarking and optimization
• Familiarity with code versioning tools (such as Git, SVN, and Mercurial)

● Developing new user-facing features using React.js

● Building reusable components and front-end libraries for future use

● Translating designs and wireframes into high quality code

● Optimizing components for maximum performance across a vast array of web-capable devices and browsers

● Strong proficiency in JavaScript, including DOM manipulation and the JavaScript object model

● Thorough understanding of React.js and its core principles

● Experience with popular React.js workflows (such as Flux or Redux)

● Familiarity with newer specifications of EcmaScript as well as HTML and CSS

● Experience with data structure libraries (e.g., Immutable.js)

● Working knowledge and integration knowledge with RESTful APIs

● Knowlegde of websockets implementation is a must.

● 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.

● Ability to understand business requirements and translate them into technical requirements.

● A knack for benchmarking and optimization

● Familiarity with code versioning tools {such as Git}

● Added advantages if you have working knowledge of AWS

What you need to have:

• Create well-designed, tested code using best practices for website development, including mobile and responsive site design
• Integrate data from various back-end services and databases
• Create and maintain software documentation
• Stay plugged into emerging technologies/industry trends and apply them into operations and activities
• Cooperate with web designers to match visual design intent

Here is a quick summary for you:

Position – Front end Developer

Experience – 1- 4 Years

Notice period - Immediate to 30 Days

Location – Bangalore / Gurgaon

What will you do?
.Complete ownership of a feature.
.Work closely with the product and design team to build, test and deploy
feature specifications.
.Build reusable, scalable, and efficient front-end systems.
.Suggest and implement better ways to improve existing systems and keep
everything bug-free.
.Keep updated with the latest web technologies coming up in the market
and suggest ways to implement them in our system.
Must Have Skills :- 
.2 years of strong hands-on experience building applications on the web
platform with JavaScript, HTML, and CSS.
.Experience in building responsive web apps using JavaScript.
.Strong understanding of the latest JavaScript ES6+ concepts such as
Promises, OOPs, Scoping, etc.
.Strong hands-on experience in building SPAs using React JS and its
companion libraries.
.Experience with build tools such as Webpack, Grunt, Gulp etc.
.Knowledge of state management libraries such as Redux, Flux, Context
API, etc.
.Strong debugging skills using browsers dev tools and familiarity with
cross-browser support.
.Familiarity with API dev tools such as Postman.
.Knowledge of RESTful APIs.

FrontEnd Developer - ReactJs & Angular

Rejolut is among the fastest-growing and award winning Tech companies working on leading technologies namely Blockchain, Machine Learning & Artificial Intelligence, Complex mobile & Web Apps, IoT, etc.Rejolut is a venture-backed company with clients in over several countries namely Malaysia Airlines,gba global,my-earth,biomes, Dlg-hub,etc.

We are looking for Tech geeks having hands-on experience and in love with building scalable, distributed and large web/mobile products and tech solutions. He/She must be an excellent problem solver with passion to self-learn and implement web technologies (frontend + backend). He/She would be responsible for the architecture design, code review, and technology build and deployment activities of the product. 

Responsibilities:

• Proficient in client & server-side JavaScript, HTML5, CSS3 and webpack
• Competent in building single page web applications using Node.js and React Js
• Redux/ Recoil Js for state management
• Universal rendering (Client-side rendering and Server-side rendering)
• Experience with cross-browser, cross-platform, and design constraints on the web
• Experience in developing automated unit and functional tests
• Experience in an agile development process
• Deep knowledge of algorithms and design patterns
• Have a passion for quality and writing clean, readable code that scales and performs well
• Good interpersonal communication skills

Desired Candidate Profile:

• Strong proficiency in JavaScript, including DOM manipulation and the JavaScript object model

• Thorough understanding of React.js and its core principles

• Experience with popular React.js workflows (such as Flux or Redux)

• Familiarity with newer specifications of EcmaScript

• Experience with data structure libraries 

• Knowledge of isomorphic React is a plus

• Familiarity with RESTful APIs

• Knowledge of modern authorization mechanisms

• Familiarity with modern front-end build pipelines and tools

• Experience with common front-end development tools

• Ability to understand business requirements and translate them into technical requirements

• A knack for benchmarking and optimization

• Familiarity with code versioning tools

Rejolut - As a Career Differentiator

 - We are a young and dynamic team who are obsessed with solving futuristic and evolutionary business problems at scale with the next generation technology like blockchain, crypto and machine learning. Focuses on empowering people across the globe to be technically efficient, making advancements in technology and providing new capabilities that were previously thought impossible.

- We provide exposure to higher learning opportunities so that you can work on complex and cutting edge technology like React, React Native, Flutter, NodeJS, Python, Go, Svelte, WebAssembly. Strong expertise in  blockchain and crypto technology and working with the networks like Hedera Hashgraph, Tezos, BlockApps, Algorand, Cardano.

- We maintain high end transparency with clients and employees as Visibility unlocks Efficiency and trust unlocks Visibility.

- Company is backed by two technology Co-founders, well-versed with consumer applications and their work has been downloaded millions of times and have led teams in leadership positions in companies like Samsung, Purplle, Loylty Rewardz.

Benefits :

> Health Insurance

> Work from Home

> Fast growth and more visibility into the company

> Experience to work on the latest technology

> Competitive Learning Environment with supportive co-workers

> Employee friendly HR Policies

> Paid leaves up to certain limits

> Competitive salaries & Bonuses

> Liberal working atmosphere

> Get mentored by the best in the industry

Schedule:

Day Shift/Flexible working hours

Monday to Friday