Senior Frontend Developer

Job Title : Frontend Developer (React.js) – Blockchain Experience

Location : Remote

Experience : 3+ Years

Key Skills : React.js, TypeScript, Web3.js, blockchain integration, UI/UX design

Job Description :

We are looking for a skilled React.js Frontend Developer with experience in blockchain applications. The ideal candidate should have expertise in React.js, Web3.js, and UI/UX best practices to build seamless decentralized applications (dApps).

Requirements :

• 3+ Years of React.js development experience.
• Strong knowledge of Web3.js or Ethers.js.
• Experience integrating smart contracts with frontend.
• Proficiency in TypeScript and modern frontend frameworks.
• Understanding of blockchain fundamentals and dApp development.

Job Title : Lead Web App Developer – Frontend

Experience : 10+ Years

Location : Bengaluru

Work Mode : Hybrid (3 days in office)

Role Overview :

We are seeking a Lead Frontend Engineer to build and maintain responsive, cloud-based web applications. This role involves developing efficient user interfaces using React.js, collaborating closely with UX and backend teams, and ensuring high-quality code.

Key Responsibilities:

• Frontend Development: Create and maintain web applications using React.js, HTML, CSS, and JavaScript/TypeScript.
• Collaboration: Work with UX designers to deliver excellent user experiences and ensure seamless backend integration.
• Code Quality: Write clean, efficient, and maintainable code while staying updated with modern practices.
• Build & Deployment: Manage build pipelines with Jenkins, deploy to CDNs, and leverage GCP for scalable solutions.
• Technical Expertise: Implement JavaScript frameworks and libraries for web analytics and use Git for version control.

Requirements:

Technical Skills:

• Proficiency in React.js, HTML, CSS, JavaScript/TypeScript, and Node.js frameworks.
• Strong debugging and problem-solving skills.
• Exposure to RDBMS and SQL (preferred).

Soft Skills:

• Excellent communication and collaboration abilities.
• Leadership skills to guide and inspire a team of developers.
• Education: Bachelor's/Master’s in Computer Science or related fields.

Notice Period: 30 days preferred

Interview Process:

1. Technical Round: Online technical assessment (1 hour).
2. Face-to-Face Interview: In-person interview with the team at the Bengaluru office (3 hours).
3. Final Round: Online interview with the CEO (30 minutes).

Additional Information:

• Candidates from Bengaluru or willing to relocate are preferred.
• F2F interview attendance on a weekday is mandatory.

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.

Responsibilities:          

• Designing and developing user interfaces using AngularJS/Angular best practices.
• Adapting interface for modern internet applications using the latest front-end technologies.
• Writing JavaScript, CSS, and HTML.
• Developing product analysis tasks.
• Making complex technical and design decisions for AngularJS/Angular projects.
• Developing application codes and unit tests in AngularJS, Angular, Micro-frontend architecture, and Rest Web Services.
• Conducting performance tests.
• Consulting with the design team.
• Ensuring high performance of applications and providing support.

Qualifications   

• Bachelor’s degree in Computer Science or related background
• Minimum of 3 years of relevant experience

Required Skills and Experience:

• 3+ years’ experience with JavaScript (Particularly ES6), Typescript, CSS, HTML.
• 2+ years’ experience with Angular v9 or greater.
• Experience using JavaScript building tools like Grunt and Webpack.
• Client-side unit testing via Jest or similar testing library a plus
• Experience consuming RESTful APIs is strongly desired
• Experience working in agile project management methodologies (Scrum, Kanban, FDD)
• Excellent communication skills.
• Critical thinker and good problem-solver.

• Our engineers are involved in all parts of the product lifecycle: brainstorming, design,prototyping, planning, execution, and deploying.
• We brainstorm to understand and explore the difficult problem and come up with the best solution for the hardest problems that impact the world.
• You will develop broad-ranging skills working on a wide variety of initiatives. You will take responsibility for your projects, but you'll also have teammates who look out for you.
• We operate in a “get s**t done” environment where the goal is always to execute and implement. While doing all of this...You will not forget to have fun!

WHAT WE VALUE

• You're cool with working with others. Our jobs aren’t done in a vacuum and everyone contributes to get the job done.
• You’re not afraid to make mistakes because without challenge, you’re not learning.
• Speaking of learning, you have a constant desire to grow and develop.
• You care about great design, not only in the product and visual sense, but also in your code and technical architecture.
• You are passionate about product craftsmanship, and can balance that with deploying something relevant.
• You move fast with a sense of urgency. You want to work on things that make an impact on the world.

DESIRED EXPERIENCE

• Candidate Expectations: Design, code, deploy and maintain scalable software infrastructure to meet Blowhorn's demands.
• 3+ years’ experience in a start-up environment or any reputed product based company
• Build APIs for business clients to integrate blowhorn into their systems.
• Setup processes and methodology for sustainable software development.

DESIRED SKILLS

• Develop new user-facing features
• Build reusable code and libraries for future use
• Ensure the technical feasibility of UI/UX designs
• Good understanding of JS frameworks (AngularJS, ReactJS, VueJS), Angular 5+ and Bootstrap.
• Proficient understanding of web markup, including HTML5, CSS3
• Basic understanding of server-side CSS pre-processing platforms, such as LESS and SASS
• Proficient understanding of client-side scripting and JavaScript frameworks, including jQuery
• Some exposure to Analytics/Dashboard and related client frameworks (D3.js, Apache superset)
• Good understanding of asynchronous request handling, partial page updates, and AJAX
• Optimize application for maximum speed and scalability
• Assure that all user input is validated before submitting to back-end
• Has worked extensively on Google maps and features like live tracking, geo fencing
• Good API integration skills (with backend frameworks)
• Mobile frameworks like Flutter is a plus
• Collaborate with other team members and stakeholders
• Basic knowledge of image authoring tools, to be able to crop, resize, or perform small adjustments on an image. Familiarity with tools such as Gimp or Photoshop is a plus.
• Proficient understanding of cross-browser compatibility issues and ways to work around them.
• Proficient understanding of code versioning tools, such as (Git / Mercurial / SVN)
• Good understanding of SEO principles and ensuring that application will adhere to them.

• 3 to 5 years of experience in UI Development and hands on experience on Angular2 or Angular 2+, Node etc.
• Exposure to cross browser compatibility issues, SCSS as the CSS macro-processor, sprites etc.
• Experience with Jira, SVN, Git will be added advantage
• Passionate and eager to learn new technologies
• Intimately knowledgeable about all things web and mobile
• Demo able portfolio on website or GitHub will be given preference
• Must have knowledge on Java script, jQuery, ECMAScript
• Strong proficiency in JavaScript (ES6) or TypeScript
• Familiarities with modern JavaScript tools, like npm and webpack
• Excellent technical design, problem solving and debugging skills.
• Experience building JavaScript/CSS Frameworks or shared component libraries used in large scale production websites.
• Understands frontend software design patterns (e.g. asynchronicity, data binding, modules, objects, promises).
• Knowledge of professional software engineering practices & best practices for the full software development life cycle, including coding standards, code reviews, source control management, build processes, testing, and operations.
• Working with MVVM, MVP, MVC patterns

Requirements

• Convert design to Angular 5 components
• Use SCSS as the CSS macroprocessor
• Integrate the Angular services with APIs from the backend team
• Implement UI development best practices to write optimized and non-buggy code
• Work in Agile environment with sprint releases ranging from 2 to 4 weeks
• Feasibility study of requirement and suggest multiple approaches for a problem after sufficient RnD
• Keep abreast with trending recent UI tools, technologies, plugins and software in the industry
• “Roll-up your sleeves” attitude to get things done
• Test your screens using a tool for all browsers and resolution compatibility
• Handle and track tasks assigned using Agile methodology
• Strong commitment towards quality and schedule.
• Cross team coordination