Senior Software Development Engineer

What You’ll Do:

• Build and ship responsive, high-performance web applications using React.
• Translate UI/UX designs into clean, maintainable code.
• Integrate frontend with backend services via REST/GraphQL APIs.
• Optimize applications for speed, scalability, and cross-browser compatibility.
• Write reusable, modular components and maintain design consistency.
• Collaborate with product managers, designers, and engineers to deliver features end-to-end.
• Identify performance bottlenecks and improve frontend architecture.
• Participate in code reviews and contribute to best practices.

What We’re Looking For:

• 4–6 years of experience in frontend development.
• Strong hands-on experience with React.js.
• Solid understanding of JavaScript (ES6+), HTML5, and CSS3.
• Familiarity with state management (Redux / Zustand / Context API).
• Experience working with REST APIs and asynchronous programming.
• Understanding of responsive design and cross-browser compatibility.
• Experience with build tools (Webpack, Vite, etc.).
• Familiarity with Git-based workflows.
• Good problem-solving and communication skills.

Good to Have:

• Experience with testing frameworks (Jest, React Testing Library).
• Exposure to performance optimization techniques.
• Basic understanding of backend technologies (Node.js / Python).

What You’ll Work On:

• Building intuitive and scalable user interfaces for our core product.
• Improving performance and user experience across the platform.
• Contributing to frontend architecture and design systems.
• Solving real-world problems at scale.

Why Join Us

• Work on impactful products used by real customers.
• Opportunity to own features end-to-end.
• Collaborative and fast-paced environment.

As a Senior Software Development Engineer, you will drive the responsibility of developing features for our existing products and bring new innovations to the table. You will work with the latest tools and frameworks, crafting seamless user experiences that drive productivity and innovation. The ideal candidate is an enthusiastic go-getter, problem solver, and works with “there is always a “solution' attitude, combined with empathy and strong communication.

What You Will Do in This Role

• Building and developing new software features for our JustCall product.
• Working through the design, implementation, integration, testing, and deployment phases of project delivery.
• Provide software design and programming expertise to support research projects.
• Collaborating with cross-functional teams - Experimenting and reiterating on software basis feedback from customers/product & business stakeholders.
• Designing and developing new fast and robust algorithms to ensure that the platform supports millions of communications exchanges every month.
• Working with our engineering team to deploy and maintain research models in the production.
• Collaborating with the product and design teams on crafting great user experiences.

What you need to be successful

• 3-7 years of experience in ReactJS (not native), JavaScript, HTML5, and CSS3.
• Experience in designing and building systems for maximum performance, reliability, and scalability
• Experience in working with object-oriented programming with least one object-oriented programming language and understanding of browser caching.
• Experience with seamless integration of front-end to backend functionality.
• Knowledge of high-level programming concepts like promises, and data-binding.
• Ability to design relational database schema at scale with Tailwind experience, including concepts like layout, specificity, cross-browser compatibility, and accessibility.
• Proficient understanding of code versioning tools, such as Git.
• Experience with test-driven/behavior-driven development using automated testing tools.

Benefits and Perks

• Enjoy a 5-day work week with the flexibility to work from home 2 days a week.
• Take advantage of flexible holidays, allowing you to plan your vacations according to your needs.
• Celebrate collective success with frequent recognition of our team's efforts.
• Collaborate with a truly global team, spanning six countries.

SaaS Labs is a diverse international team of passionate problem solvers. With innovation, experimentation, and customer obsession at the heart of their ethos, the company has been honored with 30+ innovation awards including the coveted Deloitte Technology Fast 50 and FT High Growth Companies (Asia Pacific). We are an equal opportunity employer. We celebrate diversity and are committed to creating an inclusive environment for all employees. We would love to work with you. Apply now!

Required Skills and Experience:

• 5 - 11 years of experience in front-end development, with a strong focus on React.js.
• Proven experience with React.js and related technologies (e.g., Redux, React Router, Hooks, Context API).
• Strong proficiency in JavaScript, HTML5, CSS3, and modern front-end build tools (e.g., Webpack, Babel, etc.).
• Hands-on experience with RESTful APIs, Server Sent Events, WebSocket's
• Hand’s on experience with web components, micro frontends
• Deep understanding of browser apis like history, intersection observer, event handling, virtual panes, drag and drop etc
• Ability to work on a complex and fast moving code base.
• Familiarity with TypeScript and its integration with React applications.
• Strong problem-solving skills and attention to detail.

Duration: 3 Months

Type: Hybrid(Gurgaon); Paid

Joining: Immediate

Who's a fit:

- Experience with React Native and ReactJS

- Excellent problem-solving and logical thinking

- Completed a degree in Computer Science, Engineering, or related field

- Projects to showcase your skills

Responsibilities:

- Creating the website architecture.

- Designing and building the website front-end.

- Managing website back-end including database and server integration.

- Managing WordPress themes and plugins.

- Conducting website performance tests.

- Troubleshooting content issues.

- Monitoring the performance of the live website.

Skill Requirements:

- Proven work experience as a WordPress developer.

- Knowledge of front-end technologies including CSS3, JavaScript, HTML5, and jQuery.

- Knowledge of code version tools including Git, Mercurial, and SVN.

- Experience working with debugging tools such as Chrome Inspector and Firebug.

- Good understanding of website architecture and aesthetics.

- Ability to manage projects.

- Good communication skills.

- Bachelor’s degree in computer science or a similar field.

About Yellow Riddle:

Yellow Riddle is a young, fast-growing, bootstrapped and fun startup with a partly remote team. The founders have both been an active part of the Shopify ecosystem for over two years now consulting over 100+ DTC brands across the globe. We solve complex solutions for our merchants and build best-in-class Shopify websites. Most of our clients are based in the UK, Germany, USA & India.

Check out our website, especially our case studies:

www.yellowriddle.com

About the Role: 

Yellow Riddle is looking for an experienced Front-end Shopify Developer to join our growing team with our increasing volume of Shopify work. Work would be spread across theme customisations, development and more complex migration projects from other CMS platforms to Shopify. One could also expect to be involved in maintenance and iterative site improvements. The key objective of the role is to be able to work on complex project requirements and be able to work across multiple projects.

You'll be a great fit!... if:

• You have strong knowledge in templating languages, and additionally Shopify Templates(Liquid), debugging and front-end skills.
• You know how to set up custom layout/content editors for our clients in Shopify.
• You have hands-on experience with Shopify, including at least two or more large-scale projects.
• You write clean theme code and can add and debug JS.
• You excel working in a remote environment, meaning you’re autonomous, self-driven, responsive, transparent, and self-organised.

Critical Requirements (Must-Haves):

• Minimum 3 years of work experience.
• Excellent verbal and written communication skills in English.
• Ability to demonstrate strong analytical skills & problem solving mindset
• Strong knowledge of HTML, CSS.
• Knowledge of JavaScript and jQuery
• Ability to develop responsive designs from PSDs, Invision or Adobe XD
• Shopify knowledge & ability to work on theme-kit

Preferred Requirements (Nice to Haves):

• Experience of working on Shopify Plus projects

Candidate Attribute (Culture Fit):

• Willingness to learn.

• Write, test, debug and ship code and gather feedback on the scale, performance, security to incorporate back into the platform. 

• Work with the founders to identify complex technical problems and solve them. 
• Work with the product design and client experience development team to support 

them with scalable services 

• Feed into the overall mission and vision of the eParchi’s platform over the period of the coming months and years. 

• An ability to perform well in a fast-paced environment 
• Excellent analytical and multitasking skills.