Full Stack React Engineer

StarApps Studio is a product-driven SaaS company building Shopify apps that power thousands of online stores. We’ve developed 6 highly-rated Shopify apps (averaging 4.9★) used by 30,000+ Shopify merchants worldwide, including over 1,000 Shopify Plus stores. In just a few years, our bootstrapped team grew from $5.5M to $10M in Annual Recurring Revenue (ARR) by obsessing over quality and merchant success. We’re a tight-knit, 20-person team based in Baner, Pune, on a mission to help e-commerce brands create world-class shopping experiences.

Role Overview

We are looking for a Full Stack Developer who will own features end-to-end with an emphasis on backend excellence. In this role, you will design and optimize complex data models and API architectures in Ruby on Rails, implement robust background job queues (e.g. delayed_job) for heavy workloads, and perform rigorous performance tuning to ensure our systems scale. On the frontend, you'll build and integrate React components to deliver complete, user-friendly features. This is a role for someone who loves tackling deep technical challenges in the backend while also crafting intuitive user interfaces – an opportunity to leverage your backend expertise while driving full-stack product ownership.

Key Responsibilities

• Architect & Optimize Backend: Design scalable database schemas and efficient data models. Develop high-performance RESTful APIs and services in Ruby on Rails, ensuring clean, maintainable code and great performance.
• Backend API Development: Design, implement, and maintain robust backend services and RESTful APIs in Ruby on Rails to support new features and internal tools.
• End-to-End Performance Tuning: Optimize application performance across the stack – from minimizing frontend load times to improving backend query efficiency – for our high-traffic, data-intensive apps.
• Collaboration & Agile Delivery: Work closely with designers, product managers, and QA to translate requirements into technical solutions. Participate in sprint planning, code reviews, and daily deployments to ship features continuously and reliably.
• Quality & Maintenance: Write clean, maintainable code with appropriate test coverage (unit and integration tests) to ensure reliability. Monitor, debug, and resolve issues in production, and continually refactor and improve existing code for stability and performance

What We’re Looking For (Requirements)

• 4–8 Years Experience: Proven experience as a software developer in a product company (experience in e-commerce or SaaS is highly preferred). You have built real products used by actual customers at scale.
• Ruby on Rails Expertise: Strong command of Ruby on Rails. Experience designing RESTful APIs, working with MVC architecture, and using Rails best practices. You should understand how to structure large Rails applications for maintainability.
• Backend Proficiency: Comfortable building server-side applications and APIs with Ruby on Rails. You can implement business logic, integrate with databases, and create RESTful endpoints (bonus if you’ve worked with GraphQL or other backend frameworks).
• Database Skills: Proficiency with PostgreSQL (or similar RDBMS). Capable of writing complex SQL queries, optimizing queries/indexes, and designing efficient relational schemas. Familiarity with Redis or caching strategies is a plus.
• Front-End Proficiency: Comfortable building user interfaces with React and modern JavaScript/TypeScript. Able to implement frontend components that consume APIs and provide a smooth user experience.
• System Design & Quality: Solid understanding of web application architecture, performance tuning, and scalability concerns. Experience with profiling, benchmarking, and optimizing web applications. Commitment to writing clean, maintainable code with proper tests.
• Product Mindset: You care about the why behind the features. You are comfortable digging into requirements, questioning assumptions, and ensuring that we build solutions that truly solve merchant problems.
• Adaptability & Collaboration: Excellent problem-solving skills, communication, and ability to work in a fast-paced, collaborative environment. You are a self-starter who can take ownership of tasks and drive them to completion, but also know when to ask for help.

Tech Stack

• Frontend: React, TypeScript/JavaScript, HTML5, CSS3 (Tailwind/Bootstrap), modern build tools (Webpack, Babel).
• Backend: Ruby on Rails (REST APIs, background jobs), some services in Python.
• Database: PostgreSQL.
• Cloud & DevOps: Amazon Web Services (EC2, S3, RDS, CloudFront), Docker, CI/CD for daily deployments.
• Tools: Git (GitHub), Agile issue tracking (JIRA/Trello), and a keen use of automated testing.

(Don’t worry if you aren’t familiar with every item – we value willingness to learn. This is our current stack, and we continually adopt new technologies that improve our products.)

Why Join Us

• High Impact & Ownership: Your work will directly enhance the shopping experience of 50M+ shoppers daily. At StarApps, developers deploy code daily and see the immediate impact on thousands of merchants – you’ll own projects end-to-end and build features that matter.
• Fast-Growing, Profitable Startup: Join a bootstrapped, profitable company on an exciting growth trajectory (from $4M to $10M ARR). There’s no bureaucracy here – just a passionate team obsessed with product quality and merchant happiness. You’ll be part of our core team as we scale, with ample opportunities to grow into leadership roles.
• Cutting-Edge Tech & Challenges: Work with modern technologies (React, Rails, AWS) on performance-intensive applications. Tackle complex challenges in scaling, optimization, and UX for a global user base – continuously sharpen your skills in a supportive, learning-focused environment.
• Collaborative Culture: We are a small 25-person team that operates like a close-knit family. You’ll work side by side with experienced founders and a talented team that values innovation, humility, and continuous improvement. Our culture is open, empathetic, and growth-oriented – every voice is heard, and every team member plays a crucial role in our success.

Growth & Benefits: We invest in our team’s growth. Expect a competitive salary, performance bonuses, and whatever tools you need to do your best work. We sponsor professional development (courses, conferences, books) and encourage knowledge-sharing. You’ll enjoy a flexible leave policy, team off-sites, and the excitement of building a global product from our new office in Baner, Pune.

Key Responsibilities:

-    Develop, test, and maintain dynamic web applications using React.js and related front-end technologies.

-    Build responsive and interactive user interfaces with reusable components.

-    Collaborate closely with UI/UX designers, backend developers, and project managers to deliver robust and scalable solutions.

-    Integrate RESTful APIs and manage data flow effectively using Redux or other state management libraries.

-    Optimize web applications for maximum performance, scalability, and cross-browser compatibility.

-    Debug and troubleshoot issues to ensure high-quality deliverables.

-    Write clean, maintainable, and well-documented code following best practices.

-    Use Git for version control and participate in code reviews.

Skills Required:

-    Minimum 2 years of professional experience in front-end web development.

-    Strong proficiency in React.js, JavaScript (ES6+), HTML5, and CSS3.

-    Experience with Redux / Context API or other state management tools.

-    Good understanding of component lifecycle, hooks, and functional programming concepts.

-    Familiarity with REST APIs, JSON, and asynchronous data handling.

-    Knowledge of responsive design, cross-browser compatibility, and performance optimization.

-    Familiarity with version control systems (Git).

Job Description – Senior Software Developer

 Key Responsibilities:

• Architect, develop and maintain web applications using the MERN stack.
• Design RESTful APIs (and possibly GraphQL) in Node.js/Express, integrate with front-end in React.
• Build and enhance the front-end UI in React, ensuring performance, responsiveness and maintainability.
• Design MongoDB schemas, indexes and queries for high-traffic/scale scenarios.
• Deploy, operate and optimise cloud infrastructure on AWS: e.g., EC2, Lambda, S3, RDS/DynamoDB, VPCs, IAM, autoscaling.
• Ensure high availability, fault-tolerance, and scalability of services in production.
• Set up and maintain CI/CD pipelines, infrastructure as code, automated testing, monitoring & alerting.
• Troubleshoot and fix performance bottlenecks across the stack (front-end, back-end, database, cloud).
• Collaborate with cross-functional teams (product, design, QA, DevOps) to deliver features end-to-end.
• Mentor junior/mid-level developers, conduct code-reviews, impart best practices.
• Stay up to date with emerging technologies, propose improvements to architecture and processes.

Required Skills & Qualifications:

• 3-5 years of hands-on experience in full-stack web development using the MERN stack (MongoDB, Express.js, React.js, Node.js).
• Strong front-end skills in React: component architecture, hooks, state management, performance optimisation.
• Solid back-end skills in Node.js/Express: API design, middleware, security, robustness.
• Experience with MongoDB (or equivalent NoSQL) including schema design, query optimisation, indexing.
• Proven experience working with AWS cloud services (compute, storage, database, networking, security, monitoring).
• Experience deploying applications at scale: autoscaling, high availability, disaster recovery.
• Familiarity with CI/CD pipelines, infrastructure‐as‐code (CloudFormation, Terraform or similar), containerisation (Docker) is a plus.
• Good understanding of software engineering best practices: code-quality, testing, documentation, version control (Git).
• Excellent communication skills, self-motivation, ability to work remotely and collaborate across time zones.
• Bachelor’s degree in Computer Science or related field (or equivalent experience).
• 
  

Very strong core Java/Spring developer

• Decent experience in implementing observability (monitoring/alerts) for Java apps

• Working experience in using CI/CD pipelines.

• Capable of working with scripting languages.

• Knowledge of Tibco BW is optional and we can upskill him in case he has other desired skills.

Job Title: Senior Full Stack Developer 

Location: Chennai / Coimbatore 

Position Type: Full-Time 

About Us: 

At Justo Global, we are dedicated to empowering Small and Medium Enterprises (SMEs) around the world through our primary driver’s technology, data, and media. Our primary objective is to establish a global platform that effectively connects SMEs from India, developing countries, and beyond to the international market. Our mission revolves around creating an inclusive environment where SMEs can leverage the power of technology, data, and media to drive their success. 

What We’re Looking For: 

Minimum 5 - 8 years of work experience in Software application development. 

• 3+ Years of experience as a full stack developer with experience in the design and implementation of UI using React.js. 
• 5+ Years of experience in developing APIs using Node.js, and having experience with Golang will be an added advantage. 
• Proven experience in React design guidelines, SDK, and excellent JavaScript skills. 
• Experience working with SQL and NoSQL-based databases such as Oracle, MySQL, PostgreSQL, MongoDB. 
• Familiarity with API security models including but not limited to OAuth, JSON Web Token, Digital Certificates, Basic Authentication, and OpenID. 
• Exposure to DevOps culture with hands-on experience in Jenkins for CI/CD would be an added advantage. 
• Knowledge of containerization utilizing Docker and Kubernetes will be an added advantage. 

Responsibilities: 

• Demonstrate a strong sense of ownership and responsibility with release goals. This includes understanding requirements, technical specifications, design, architecture, implementation, unit testing, builds/deployments, and code management. 
• Ensure compliance through the adoption of enterprise standards and promotion of best practice / guiding principles aligned with organization standards. 
• Build and maintain the environment for speed, accuracy, consistency, and ‘up’ time. 
• Hands-on position requiring strong analytical, architectural, development, and debugging skills that includes both development and operations. 
• Developing front-end website architecture and designing user interactions on web pages, ensuring the responsiveness of applications. 
• Developing back-end APIs and creating servers and databases for functionality. 
• Working alongside graphic designers for web design features. 
• Designing and developing APIs meeting both technical and consumer needs. 

The Team: 

You will be part of an exciting talent group, where we have a dynamic team of engineers to solve the many challenges and puzzles of our rapidly evolving technical stack. We’re seeking a Senior full stack developer who is ready to work with new technologies and architectures in a forward-thinking organization that’s always pushing boundaries. This person will have complete, end-to-end ownership of projects. The ideal candidate has experience building products across the stack and a firm understanding of web frameworks, APIs, databases, and multiple back-end languages. The full stack developer will join a small team that uses new technology to solve challenges for both the front-end and back-end architecture, ultimately delivering amazing experiences for global users. 

Full Stack Engineer

About ZenTrades:

ZenTrades is a rapidly growing product startup that has established a strong foundation in the realm of SaaS (Software as a Service) business solutions, particularly in the Field Service Management software domain. Our vision is to revolutionize the trade services industry by seamlessly integrating technology, streamlining operations, enhancing customer experiences, and driving growth.

Position Overview :

We are actively seeking a seasoned Full Stack Developer proficient in React and Node to contribute to our cutting-edge projects. As a key member of our development team, you will be instrumental in shaping the user experience and functionality of our web applications. If you are a creative thinker with a strong technical foundation and a passion for crafting exceptional user interfaces, we want to hear from you.

Key Responsibilities:

Architect and Develop: Lead the design and development of robust and scalable user interfaces using React frameworks, ensuring the seamless integration of frontend components.

Code Excellence: Exhibit mastery in JavaScript and ES6+, producing code that is not only functional but also adheres to best practices, industry standards, and code quality benchmarks.

State-of-the-Art State Management: Implement advanced state management solutions using Redux or Mobx, optimizing application state for performance and maintainability.

API Integration: Demonstrate expertise in handling asynchronous operations by effectively working with RESTful APIs and manipulating data to enhance overall application responsiveness.

Responsive Design: Utilize a deep understanding of HTML5 and CSS3 to create visually stunning and responsive user interfaces that provide an exceptional user experience across devices.

Optimized Build Processes: Employ front-end build tools, including Webpack and Babel, to streamline development workflows and ensure efficient bundling, transpilation, and optimization of code.

Problem Solving: Exhibit excellent problem-solving skills, tackling complex technical challenges with a systematic and innovative approach.

Quality Commitment: Uphold a commitment to delivering high-quality code with meticulous attention to detail, ensuring the success of our projects through excellence in execution.

Qualifications:

• Proven track record as a Full Stack Developer
• Impeccable attention to detail and a relentless commitment to delivering high-quality code.
• Exceptional problem-solving abilities.
• Should know the microservice architecture and on a need basis should have the ability to automate certain workflows or tasks
• Mastery in any one of the languages - Javascript, Java, Golang, Python3 (preferably deep understanding of JavaScript).
• Should have hands-on experience in AngularJS or React.
• Should have a good understanding of relational and non-relational databases. Knowledge of MySQL and MongoDB is preferred
• Demonstrated experience with RESTful APIs and asynchronous request handling.
• Good knowledge of HTML5 and CSS3.
• Proficiency in front-end build tools, like Webpack/Babel.
• Proficiency with Backend servers
• DevOps experience with AWS and knowledge of ElasticSearch/Solr is a plus
• Descent knowledge of version control systems, especially Git.
• Familiarity with testing frameworks, such as Jest and Enzyme.

If you are a passionate and experienced Full Stack Developer looking to make a significant impact in a dynamic environment, we invite you to apply and be a driving force in our innovative projects.

Responsibilities

• Strong knowledge of MERN stack (MongoDB, Express JS, React JS, Node JS, HTML5, CSS3, jQuery, Bootstrap, SASS)
• Develop user interfaces for modern rich internet applications with the latest front-end technologies
• Developing features to enhance the user experience.
• Should have excellent in-depth knowledge on Nodejs and MongoDB
• Hands-on experience working with Object-Oriented JavaScript (OOJS), JavaScript libraries and their practical uses in building complex interactive experiences
• Building reusable code for future use
• Writing tested code and its documention

• 1+ years of experience in front end development and backend development is must
• Thorough knowledge of HTML5, CSS3 (LESS/SASS),React, Nodejs and Mongodb
• Solid understanding of JavaScript and the ability to pick up any framework quickly
• Strong Experience in back-end frameworks used to develop dynamic web pages (REST, GraphQL, WebSocket/socket.io)
• Expertise in developing and testing across multiple browsers, platforms, DOM implementations, etc.
• Strong experience in React, React Hooks, Redux, Thunk | Saga, ES6, Typescript, ESLint, Nodejs, GraphQL, Redis, AWS, Git, Github, Docker

Bonus but not mandatory

• UI/UX designs
• AWS
• Git
• CI/CD

As a Full Stack Software Engineer at Clipboard Health, you will help shape the way nurses find jobs and the way healthcare systems hire nurses and other practitioners today. We help nurses be able to work when and where they want, and to enable healthcare facilities to not have a staffing shortage.

We're a Y Combinator backed company (W2017) and are looking for a full-stack engineer. We currently use React, Node, Express, Mongo and MySQL.

What we are looking for:
• 2+ years experience in a software engineering role
• Have written and are comfortable writing apps in React and Node.js
• Ability to ship quickly and with elegant code
• Expertise in at least one language (Javascript, Python, Ruby) and proficient in Javascript
• Bonus if you're product-oriented
• Passion to build a business that solve problems for real people

About Our Benefits:
• Unlimited vacation
• Autonomy and ownership over your work

BRIDGEi2i Analytics is looking for candidates who are interested to be part of "Our" journey to build a best-in-class organization, driving increased adoption of business analytics across the globe.

Role:

• Getting hands on with core development work! Yes you’ll lead and manage your own team, but you’ll also frequently get down to coding, testing, and designing solutions
• Full Stack Development! Whether it is building a new product or taking an existing one to the next level, you’ll be expected to work on full stack application development whenever the situation calls for
• Juggling Business and Technology! We want someone who can understand the client’s business requirements and be able to map technology solutions to make these requirements work
• Leading from the front! Your charismatic leadership skills will help in leading and motivating your team through all stages of the product development lifecycle.
• Being a Mentor! Your team will constantly look up to you for guidance in challenging situations and we are looking for someone who can bring them up as tomorrow’s leaders
• Sound technical depth with over 6 years of experience in Java and open source technologies and managing the end to end product development life cycle
• Exceptional communication skills that can be leveraged in effectively communicating with teams, clients and business leaders within the company
• Stellar business orientation and the ability to link technology and business to devise apt solutions

Requirements

• 6+ years of experience in core Java/J2EE 
• Minimum 2-3 years of experience as a Technical Lead mentoring team of 3 to 5 developers
• Strong knowledge of one the web application framework such as Spring, Struts
• Strong knowledge of UI frameworks (AngularJS 2.0/4.0, ReactJS, Java script, HTML, CSS) 
• Strong knowledge of web services (Restful) 
• Possess advanced knowledge of object-oriented design, data structure and data architectures
• Good knowledge of relation database, SQL and ORM 
• Curiosity and attention to detail 
• Strong communicator with visual, verbal, and writing skills to clearly articulate complex design problems and solutions 
• Adaptable to changing technology and restrictions, design challenges, deadlines, and project requirements.