
Role: Mentor for MERN stack
We are currently looking for Node js Developer, open for Freelance / Part-time opportunities.
We need a software developers who have hands-on experience in MERN stack.
What we expect from you:
-You will provide mentor-ship to a small batch of students (3-5) who are preparing for an entry level job in tech.
-We require you to don the hat of a senior software developer to do the code review of our students which will include activities like reading their code, correcting their syntax errors, helping them solve the logical flaws, and ensuring that their code is up to industry standards.
Skills required:
- Node js | MongoDB | Django are required
- Redis and Data Structure Algorithm knowledge is desirable
Payout: Based on experience
Employment Type: Part-time Work remotely
Job Types: Part-time, Contract
Salary: ₹600,000 - ₹10,00,000 per year

About FunctionUp
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About us
We build Shopify apps used by serious e-commerce brands — streetwear, fashion, lifestyle.
We’re a small, profitable company. No layers. No “alignment meetings”. Just real users, real revenue, and real problems to solve. If you like shipping things that merchants actually use, you’ll fit in.
What you’ll actually do (no fluff)
- Build core product features end-to-end (backend, logic, edge cases, scale)
- Own parts of the system — not “tickets”, but decisions
- Work on performance-critical flows (orders, webhooks, queues)
- Debug real production issues with real consequences
Tech (what we use today)
- Backend: Node.js
- Database: MongoDB, Apollo
- Infrastructure: AWS (Lambda, SQS), Redis
- Frontend (secondary): React
What we’re looking for
You should have:
- 5–7 years of real production experience
- Experience building systems that didn’t fall apart at scale
- Comfort debugging messy, real-world issues
- Good judgment > fancy abstractions
- Ability to work independently without constant direction
Bonus if you:
- Have worked on SaaS or developer tools
- Understand e-commerce flows
- Have opinions (and can defend them calmly)
Why join us?
- Real ownership — your decisions ship
- Remote, async-friendly — no micromanagement
- Competitive pay (with option to work as a consultant for tax benefits)
Job Objectives:
- Integration of user- facing elements developed by front- end developers with server- side logic
- Optimize web applications to maximize speed and scale. Support diverse clients from high- powered desktop computers to small mobile devices
- Optimization of the application for maximum speed and scalability - Implementation of security and data protection
- Collaborate with senior management, operations & business team
- Building Rest APIs and maintain Database optimizations
Looking For:
- Great understanding of PHP, Node, react, Express, Socket.io, MVVM framework
- Worked on e- commerce website, server handling and deployments scripts
- The one who has worked on customer facing product for 2 years
- Strong knowledge of MERN stack
- Experience designing scalable, fault tolerant systems and databases.
● In-depth knowledge of full-stack development principles and best practices.
● Expertise in building web applications with strong proficiency in languages like Node.js, React, and Go.
● Experience developing and consuming RESTful and gRPC API Protocols.
● Familiarity with CI/CD workflows and DevOps processes.
● Solid understanding of cloud platforms and container orchestration technologies.
● Experience with Kubernetes deployment and workflows using tools like Argo.
● Experience applying AI/ML models to optimize workflows or enhance product features, with familiarity in frameworks like TensorFlow, MLflow, Kubeflow, or PyTorch.
● Experience fine-tuning existing AI/ML models to adapt to specific use cases or datasets, ensuring optimized performance.
● Experience with Workflow Orchestration tools like Temporal and Windmill.
● Strong background in System Design.
● Hands-on experience with Queuing Mechanisms such as RabbitMQ, Redis, and Kafka.
● Experience with designing and building user-friendly interfaces using Tailwind CSS and Radix UI.
● Excellent understanding of distributed systems, databases, and APIs. ● A passion for writing clean, maintainable, and well-documented code. ● Strong problem-solving skills and the ability to work independently as well as collaboratively.
● Excellent communication and interpersonal skills.
Bonus points if you have:
● Experience with building self-serve platforms or user onboarding experiences.
● Familiarity with Infrastructure as Code (IaC) tools like Terraform.
● A strong understanding of security best practices for Kubernetes deployments.
● Grasp on setting up Network Architecture for distributed systems.
We are looking for an experienced Java Full Stack Developer with
expertise in Angular to join our dynamic development team. The ideal candidate will
have a strong background in both front-end and back-end development, with a
focus on delivering high-quality, scalable, and maintainable software solutions. As a
Java Full Stack Developer, you will be responsible for designing, implementing, and
maintaining software applications throughout the entire development lifecycle.
Responsibilities:
- Design, develop, and maintain scalable and responsive web applications using Java, Spring Boot, and Angular.
- Collaborate with cross-functional teams to understand project requirements and translate them into technical specifications.
- Implement and maintain RESTful APIs to support front-end and mobile applications.
- Write clean, efficient, and well-documented code following best practices.
- Work with UX/UI designers to implement visually appealing user interfaces.
- Perform code reviews to ensure code quality and adherence to coding standards.
- Troubleshoot, debug, and resolve software defects and issues in a timely manner.
- Stay updated on emerging trends and technologies in Java and Angular development
Qualifications:
- Education criteria mandatory Btech/Mtech/MCA
- Proven experience as a Full Stack Developer with expertise in Java and Angular.
- Strong proficiency in Java, Spring Boot, HTML, CSS, and JavaScript.
- Experience with front-end frameworks such as Angular (Angular 6+).
- Knowledge of RESTful web services and API design.
- Familiarity with databases (e.g., MySQL, PostgreSQL, MongoDB).
- Version control systems (e.g., Git) and build tools (e.g., Maven, Gradle).
- Experience with agile development methodologies.
- Excellent problem-solving and communication skills.
The company has been widely recognized as an industry innovator in the Data Privacy, Security space and is being built by proven Cybersecurity executives who have successfully built and scaled high growth Security companies and built Privacy programs as executives.
We are seeking an experienced Senior React Developer with Node Engineer to join our team. The ideal candidate should have at least 7+ years of experience in building scalable web applications using NodeJS and a solid understanding of AWS services. The candidate should also have experience in designing and building large-scale distributed systems.
Responsibilities:
- Design and develop high-quality, scalable, and performant software solutions using NodeJS and AWS services.
- Collaborate with cross-functional teams, including product managers, designers, and other engineers, to identify and solve complex business problems.
- Design and develop large-scale distributed systems that are reliable, resilient, and fault-tolerant.
- Write clean, well-designed, and maintainable code that is easy to understand and debug.
- Participate in code reviews and ensure that all code is of high quality and adheres to best practices.
- Troubleshoot and debug production issues and work with the team to develop and implement solutions.
- Stay up-to-date with new technologies and best practices in software engineering and cloud computing.
Requirements:
- Bachelor's or Master's degree in Computer Science, Software Engineering, or a related field.
- At least 5 years of professional experience in building web-based applications using ReactJS and NodeJS.
- Strong experience with React frameworks, including Ant Design.
- Strong understanding of JavaScript, and experience with libraries such as Redux.
- Experience with HTML and CSS, and the ability to create responsive web applications.
- Experience with server-side frameworks such as Express and NestJS.
- Strong understanding of software engineering best practices, including agile development, TDD, and continuous integration and deployment.
- Excellent problem-solving and analytical skills, with the ability to identify and solve complex technical problems.
- Strong communication and collaboration skills, with the ability to work effectively in a team environment.
Responsibilities
Work on React Js, MongoDB, Express React, AngularJS, and Node.js.
Care deeply about clean and functional code.
Passionate about learning and staying up to date with the latest technologies.
Strong proficiency in JavaScript, object model, DOM manipulation and event handlers, data structures, algorithms, JSX, and Babel.
Complete understanding of ReactJS and its main fundamentals like JSX, Virtual DOM, component lifecycle, etc.
Preceding experience with ReactJS workflows like Flux, Redux, Create React App, data structure libraries.
Understanding of REST APIs/GraphQL, HTML/CSS, ES6 (variables and scoping, array methods), code versioning tools like GIT, SVN, etc., popular frontend development tools, CI/CD tools, DevOps, performance testing frameworks like Mocha, Node + NPM
- Strong development experience in Java, JavaScript on Node.js
- Proficiency in full-stack web application development (MEAN stack)
- Strong programming skills with experience in design, coding, and testing
- Proficiency with relational databases such as MySQL
- Good understanding of server-side CSS preprocessors (such as Sass, based on project requirements)
- Good experience with AJAX, REST, and JSON
- Experience with AWS cloud services will be an added advantage
- Understanding of Source Control tools for version control: GIT/SVN
Requirements
- Bachelor's degree in Computer Science, Engineering or a related subject
- 2 - 6 years of hands-on experience developing, implementing, and delivering web applications
- Excellent written and verbal communication skills
Looking for someone who is interested in a long term move, has the passion and drive to work for a startup, take initiatives, think out of the box, and focus on "solutions" vs the "problems". We are bootstrapped currently, and looking for fund raising. We will be offering a decent share of equity to the candidate, and a salary once funds have been raised.
Overall you will get to work for a company that can change the future of India's fitness and sports landscape, with a passionate set of founders, and potential lifetime friends.
- Experience implementing applications using Angular 2.
- Experience creating front end applications using HTML5, Angular, LESS/SASS.
- Hands-on experience with JavaScript Development on both client and server-side.
- Experience with modern frameworks and design patterns, minimum one-year experience with MEAN Full-stack paradigm.
- Good knowledge of Data Structures and Advance DS
Knowledge of the following will be considered as an advantage:
- Consumer Web Development Experience for High-Traffic, Public Facing web applications
- Experience with cloud technologies also a plus
- Creating secure RESTful-based web services in XML and JSON, Javascript, JQuery
- Continuous integration (Jenkins/Hudson) and version control (SVN, Git).
- AWS knowledge added advantage with Devops especially Kubernetes










