Sr. Full Stack Developer at HaystackAnalytics · Remote only · 3 - 8 years · ₹15L - ₹18L / yr · Profitable · Remote only · Posted 6 Oct 2022

You’ll be joining a small team working at the forefront of new technology, solving the challenges that impact both the front-end and back-end architecture, and ultimately, delivering amazing global user experiences.
Responsibilities
• Work across the full stack, building highly scalable distributed solutions that enable positive user experiences and measurable business growth
• Ideate and develop new product features in collaboration with domain experts in healthcare and genomics
• Develop state-of-the-art enterprise standard front-end and backend services
• Develop cloud platform services based on a container orchestration platform
• Continuously embrace automation for repetitive tasks
• Ensure application performance, uptime, and scale, maintaining high standards of code quality by using clean coding principles and solid design patterns
• Build robust tech modules that are Unit Testable, Automating recurring tasks and processes
• Engage effectively with team members and collaborate to upskill and unblock each other
Other Skills
• Innovation and thought leadership
• UI - UX design skills
• Interest in learning new tools, languages, workflows, and philosophies to grow
• Communication
Who are we?
HaystackAnalytics is a company working in deep technology of genomics, computing, and data science for creating the first-of-its-kind clinical reporting engine in healthcare. We are a new but well-funded company with a tremendous amount of pedigree in the team (IIT Founders, IIT & IIM core team). Some of the technologies we have created are a global first in infectious disease and chronic diagnostics. As a product company creating a huge amount of IP, our Technology and R&D team are
our crown jewels. With the early success of our products in India, we are now expanding to take our products to international shores

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Job Summary:
Experienced Full-Stack Developer with expertise in Angular (TypeScript) for front-end development and Python Flask for back-end API development. Strong background in Microsoft SQL Server, authentication using Azure AD (MSAL), and implementing efficient API integrations. Skilled in unit testing, debugging, and optimizing performance.
Key Skills:
• Front-End: Angular, TypeScript, PrimeNG, RxJS, State Management, React JS
• Back-End: Python Flask, SQLAlchemy, RESTful API Development
• Database: Microsoft SQL Server (SQL, Joins, Query Optimization)
• Authentication: Azure AD, MSAL, JWT-based authentication
• DevOps & Deployment: Git, CI/CD (Azure DevOps, GitHub Actions)
• Additional: data validation, pagination, performance tuning
Job Title: Full Stack Web Developer
Company: MaterialBuy
Location: [Vasai – On-site/Hybrid]
Employment Type: Full-Time
Experience: 2–5 Years (Flexible for skilled candidates)
Industry: E-commerce / Building Materials & Construction
Website: www.materialbuy.com
About MaterialBuy:
MaterialBuy is a growing online platform revolutionizing the way people buy construction and interior materials. With a focus on high-quality products such as roofing shingles, aluminium profiles, tiles, and more, we are streamlining the building supply chain across India. We combine technology and customer-centric solutions to simplify the buying experience in the construction industry.
Role Overview:
We are seeking a dynamic and skilled Full Stack Web Developer to join our development team. You will play a critical role in designing, developing, and maintaining our customer-facing e-commerce platform and internal tools. The ideal candidate is proficient in both front-end and back-end technologies and can thrive in a fast-paced, collaborative environment.
Key Responsibilities:
- Develop, maintain, and optimize MaterialBuy’s e-commerce platform (front-end and back-end)
- Design and implement responsive UI/UX for web applications
- Build APIs and integrate third-party APIs for payments, logistics, CRM, etc.
- Work closely with design, product, and marketing teams to implement new features and enhancements
- Write clean, maintainable, and efficient code following best practices
- Identify performance issues and bugs, and devise solutions to address them
- Collaborate with SEO and digital marketing teams to optimize site performance and user experience
- Ensure cross-browser and cross-device compatibility
- Monitor website uptime, load speeds, and provide technical support when needed
Required Skills & Qualifications:
- Bachelor’s degree in Computer Science, IT, or related field (or equivalent practical experience)
- Proven experience as a Full Stack Developer or similar role
- Proficiency in front-end languages: HTML5, CSS3, JavaScript, Bootstrap, React.js/Vue.js
- Strong back-end experience using Node.js, Express.js, or PHP/Laravel
- Experience with databases: MySQL, MongoDB, or PostgreSQL
- Familiarity with version control systems (e.g., Git/GitHub)
- Understanding of RESTful APIs and web services
- Working knowledge of e-commerce architecture and platforms (optional but preferred)
- Understanding of SEO basics, website security, and performance optimization
- Strong problem-solving and debugging skills
- Ability to work independently and in a team environment
Preferred Skills:
- Experience with AWS, Firebase, or other cloud platforms
- Familiarity with CMS platforms like WordPress or headless CMS
- Knowledge of UI/UX tools such as Figma, Adobe XD
- Understanding of DevOps practices and CI/CD pipelines
What We Offer:
- Opportunity to work in a growing and innovative tech-driven company
- Exposure to real-time e-commerce challenges and solutions
- Flexible work environment
- Competitive salary and performance-based bonuses
- Career development opportunities
How to Apply:
Interested candidates can share their resume and portfolio to:
Subject Line: Application for Full Stack Web Developer – MaterialBuy
What You’ll Be Doing
- 🛠 Write code for web and mobile apps, fix bugs, and work on features that people will actually use.
- 💡 Join brainstorming sessions and help shape our products.
- 🚀 Things move fast here, and you’ll learn as you go.
- 🤝 Work closely with everyone—designers, developers, and even marketing folks.
- 🔧 Diving into Our Tech Stack: React, React Native Node, Express, Python, FastAPI, and PostgreSQL.
What We’re Looking For
We’re not looking for perfection, but if you’re curious, motivated, and excited to learn, you’ll fit right in!
For Backend Engineers
- 💻 Strong knowledge of Python, FastAPI, and PostgreSQL.
- 🔍 Solid understanding of Low-Level Design (LLD) and High-Level Design (HLD).
- ⚡ Ability to optimize APIs, manage databases efficiently, and handle real-world scaling challenges.
For Frontend Engineers
- 💻 Expertise in React Native.
- 🎯 Knowledge of native Kotlin (Android) and Swift (iOS) is a big bonus.
- 🚀 Comfortable with state management, performance optimization, and handling platform-specific quirks.
General Expectations for All Engineers
- 🛠 While you’ll be specialized in either frontend or backend, you should be good enough to fix bugs in both.
- 🔍 You enjoy figuring things out and experimenting until you get it right.
- 🤝 Great communication skills and a collaborative mindset.
- 🚀 You’re ready to dive in and make things happen.
Interview Process
If we like your application, Be ready to:
- Solve a data structures and algorithms (DSA) problem in your preferred programming language.
- Answer questions about your specialized area (frontend/backend) to showcase your depth of knowledge.
- Discuss a real-world problem and how you’d debug & fix an issue in both frontend and backend
Why Join Us?
- 💡 Your work will matter here—no busy work, just real projects with real outcomes.
- 🚀 Help shape the future of our company.
- 🎉 We’re all about solving cool problems and having fun while we do it.
We have an opening for Sr Lead Software Engineer -Full / Mern Stack Developer.
Responsibilities :
- Responsible for writing reusable, testable, and efficient code
- Design and implementation of low-latency, high-availability, and performant applications
- Implementation of security and data protection
- Understanding of performance testing and optimization techniques
Requirements
- Should have the ability to translate Wireframes and PSD Designs into functional web apps using HTML5, React , Node.js, and Mongo.
- Binding of UI elements to JavaScript object models
- Creating RESTful services with Node.js
- Architect scalable web architectures
- Must have proven experience in front ( Rect.js)& back-end development (Node.js)
- Work in a cross-functional team to deliver a complete user experience
- Must know MongoDB, Express, Node.js, & React., Typescript, CSS, HTML, Bootstrap
- Create Unit and Integration tests to ensure the quality of code
- Be responsive to change requests and feature requests
- Write code that is cross-platform and cross-device compatible
- Must have the ability to wear many hats and learn new technologies quickly
- Candidate must have good Knowledge of Node Debugging
- Understanding & proficiency in REST APIs.
- Should know Git Repository and Jira.
- Integration of data storage solutions [RDBMS, NoSQL DB]
Qualifications
Having Expereince in MongoDB - Document DataBase,
Node.js —Express(.js) web framework -Backend
React(.js) — a client-side JavaScript framework along with Bootstrap , HTML5, CSS3 - Frontend
Education : B Tech , BCA or Equivalent
Relevant Experience : 3 to 9 years : Full Stack developer
Preferred Candidate : Immediate Joiner
Location: Kolkata only ( Onsite).
Senior Software Engineer (FullStack)
As an experienced engineer we know that you have built software to solve various business problems at your previous workplaces. You may have also explored technologies on your own for your learning or hobby projects.
You will be building APIs for the Synup platform and also UI to make our platform capabilities available to our customers.
You and the team that you are a part of will be collectively responsible building performant software and customer experiences that scale to our next million customers. You will be responsible for writing technical specs and contributing to it's implementation. We expect that you would have done the same in your previous workplaces.
Other folks on our team are looking forward to learn from your experiences.
For engineers that join our team
We expect you to be good with Ruby or Python to build APIs.
You will be contributing to our UI that is built with React and GraphQL.
We hope our team members have a strong grasp of software design patterns and know when to put them to good use.
Experience with an SQL datastore would help a lot. PostgreSQL is our primary datastore. We optimize our search functionality and rollup reports by using ElasticSearch
We expect that you have used Redis. Redis is our swiss army knife to solve a lot of problems apart from just caching.
You should have
- Degree in Computer Science or relevant field
- Strong knowledge and understanding of JavaScript and TypeScript
- Knowledge of multiple frontend languages and frameworks including HTML, CSS, SCSS, JavaScript and React.
- Knowledge of backend languages and frameworks primarily Node.js
- Familiarity with SQL databases (e.g. PostgreSQL)
- Knowledge of Docker, and Kubernetes would be a plus.
- Leadership skills for guiding and mentoring teammates.
- Understanding of CI/CD Concepts
- Awareness of key concepts in DevOps and Agile principles
Perks
- Flexible working hours - employee tracking is never a thing
- A fun and close-knit agile team.
- Open office layout that promotes collaboration, conversation, and camaraderie – the result-oriented team.
- Recreational activities to keep you away from the screen and live, laugh, and enjoy with the team.
We're hiring Fullstack - React.Js and Node.js developers to join our team in UK! You will be responsible for building fluid and responsive user interfaces for multiple platforms and devices.
We are looking for experienced engineers who have an appetite for solving complex problems and build seamless user interactions to world-class standards.
Requirements
You’re great at
- Strong experience in React.js & Node.js
- Graph.ql
- Creating testable code and make testing a priority;
- Agile methodologies such as Scrum and Kanban;
- Being passionate, self-driven and working with little supervision towards a common team or company purpose
- Writing and consuming RESTful interfaces
- Vanilla Javascript and modern frameworks and platforms, Node.js experience is essential;
- AWS
- Serverless
- Developing great user interfaces
It also would be cool if you
- Know module bundlers and task runners such as Webpack, Parcel, Rollup, Browserify, Grunt or Gulp;
- Have experience with Test Automation
- Have experience in databases, both SQL and document-based
- Use state management like Redux, MobX and/or other;
- Use of CSS pre/post-processors like PostCSS, Styled Components, LESS, SASS and/or others
Benefits
We offer
- Flexible working
- Competitive salary
- Annual bonus, subject to company performance
- Access to Udemy online training and opportunities to learn and grow within the role
- Good Healthcare Benefits
- Enhanced Maternity, paternity, shared parental and adoption leave and pay
- Autonomous working
- Looking for a talented PHP Developer having experience in writing clean PHP code, having additional experience in Python/NodeJs and HTML, CSS, JS
- Someone very good at understanding requirements and developing services & features quickly.
- Good communication skills & team player, who engages with all stakeholders of the project to add clarity for all aspects of the ongoing software development project.
Your responsibilities will include:
- Having good attention to detail & requirements.
- Building software applications in PHP (mostly) and Python/Nodejs api-services.
- Creating web pages using HTML, CSS, JavaScript or VueJs.
- Developing applications using best design and coding practices.
- Writing, maintaining & upgrading middleware & back-end code and building efficient PHP and Python/Nodejs modules & services.
- Troubleshooting application and code issues.
- Integrating code with Databases & data storage solutions.
- Finalizing back-end features and testing web services.
- Updating and altering application features to enhance performance.
Key Requirements :
- Degree in Computer Science, Engineering or a related field.
- Must have Experience in PHP (Lumen & Laravel).
- Experience in either Python/Nodejs api development.
- Experience with Utils/Standards: REST, Swagger, JSON Schema.
- Experience in Web Page development - HTML, CSS, JS. Knowledge of VueJS will be a plus.
- Experience in creating scalable service-oriented & serverless applications.
- Experience with secure coding.
- Proficient BitBucket and Git.
- Should be experienced in following Agile methodologies. Tools - Jira & Confluence.
- Must have experience in Postgresql, MySql, MongoDB and Redis.
- AWS Services - S3, EC2, RDS, Elastic Cache.
- Good problem solving, decision making and prioritization skills.







