


Hashtag Labs is looking for MERN stack developer who is an expert in MongoDB, Express, React and Node. He/she should be proficient in JavaScript and use HTML, CSS and JavaScript to handle front-end operations and JavaScript with Node.js to handle back-end operations.
Roles and Responsibilities:-
- Ability to translate Wireframes into functional web apps.
- Binding of UI elements to JavaScript object models
- Creating RESTful services with Node.js
- MERN stack developer must have proven experience in front & back-end development
- Work in a cross-functional team to deliver a complete user experience
- React.JS NodeJS developer must know MongoDB, Express, Node.js, & React.
- 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
- MERN full stack developer must have the ability to wear many hats and learn new technologies quickly
- For MERN stack developer job, candidate must have good Knowledge of Node Debugging
- Understanding & proficiency in REST APIs.
- MERN stack developers should know Git Repository and Jira.
- Integration of data storage solutions [RDBMS, NoSQL DB]
Experience: 2+ years
Job Location: Lucknow, Uttar Pradesh

About Hashtag labs
About
Company social profiles
Similar jobs

Role Summary
We’re seeking a highly skilled and self-motivated Senior Software Engineer who thrives in a startup environment. You will lead end-to-end development of key features, own architectural decisions, and ensure the smooth delivery of our product.
Mandatory Skill Sets/Expertise
• 5-6 years of experience in full-stack development, with a strong focus on the MERN / PERN stack (MongoDB, PostgreSQL, Express, React, Node.js) and AWS.
• Expertise in AWS cloud architecture and experience with serverless solutions (Lambda, DynamoDB, API Gateway).
• Proficiency in designing and implementing CI/CD pipelines using Git, Jenkins, Github actions, or similar tools.
• Proven experience leading and guiding a development team, with strong mentoring skills.
• Ability to work independently and manage deliverables without oversight, while thriving in a startup mentality.
• Strong problem-solving abilities with a proactive approach to addressing technical challenges.
• Experience with databases like PostgreSQL, MongoDB, or other NoSQL solutions along with ORM tools like Sequalize & Mongoose ORM
• Excellent communication skills, both written and verbal, with the ability to explain complex technical concepts to non-technical stakeholders.
Nice to Have
• Knowledge of Typescript for both frontend and backend development. • Experience with Docker and containerized applications.
• Familiarity with GRC (Governance, Risk, and Compliance) tools or SaaS products.
• Experience with other AWS services like ECS, CloudFormation, or RDS.
Key Responsibilities
• Lead and mentor a team of developers, driving best practices in coding and architecture.
• Take full ownership of modules, from design through deployment, and launch web apps singlehandedly if needed.
• Design, develop, and maintain web applications using the PERN / MERN stack (MongoDB, PostgreSQL, Express, React, Node.js) with a focus on scalability, security, and performance.
• Prepare high-level technical designs and architectural decisions, especially on AWS serverless architecture and microservices.
• Implement secure, reliable, and scalable solutions using AWS services • Design and manage CI/CD pipelines to ensure continuous integration and automated deployments.
• Optimize application performance through techniques like lazy loading, code splitting, and caching.
• Collaborate with cross-functional teams, including Product Management, to define features and user experience improvements.
• Ensure high code quality by adhering to SOLID principles, implementing comprehensive testing, and embedding observability into the application.
• Monitor and respond to application performance incidents, focusing on improving uptime and resilience.
• Proactively offer suggestions during retrospectives and work on enhancing team productivity metrics such as Lead Time, Deployment Frequency, and Mean-Time-to-Recovery


We’re looking for a talented Full Stack Intern who thrives in a collaborative, fast-paced environment (but without the hustle culture). You’ll work on both frontend and backend tasks, learn from our experienced team, and make meaningful contributions to an open-source project. If you’re eager to grow and have prior experience contributing to open-source, we’d love to hear from you!
Who We're Looking For
You’re a great fit if you:
- Have a solid foundation in TypeScript (mandatory).
- Are excited to learn more and work in an open-source development environment.
- Can translate designs and business logic into clean, efficient code.
- Love solving complex problems and debugging tricky issues.
- Have prior experience contributing to open-source projects (preferred).
- Are proactive, curious, and willing to collaborate across teams.
Responsibilities
As a full-stack intern, you will:
Frontend Tasks:
- Translate Figma designs into pixel-perfect React/Next.js code using TailwindCSS.
- Ensure apps are responsive and visually polished.
- Write and maintain tests to ensure features are stable and bug-free.
- Optimize UI performance and address any frontend issues raised by the open-source community.
Backend Tasks:
- Build and maintain scalable Nest.js applications.
- Implement robust backend solutions using Node.js and TypeScript.
- Write tests to ensure backend stability before deployment.
- Troubleshoot backend issues and optimize app performance.
- Collaborate with design and development teams to ensure seamless integration between frontend and backend systems.
Qualifications
Must-Haves:
- Strong proficiency in TypeScript, React, and Next.js.
- Familiarity with Nest.js, Git, and GitHub workflows.
- Experience with CSS frameworks like TailwindCSS.
- A working laptop/desktop capable of handling development tasks.
Good-to-Haves:
- Experience with state management tools .
- Understanding of monorepo tools like Turborepo and pnpm workspaces.
- Familiarity with Shadcn/UI and atomic design principles.
- Prior open-source contribution experience (highly preferred).
Preferred:
Due to the high volume of applications, we give preference to candidates who have at least attempted one of our PR issues on GitHub https://git.new/keyshade and have prior open-source experience. Being an active contributor to open-source projects demonstrates the skills and mindset we value.
Benefits
- 100% remote work with no rigid time limits—your productivity defines your work hours.
- Flexible schedule—we’re night owls, but your schedule is yours.
- Performance bonuses for exceptional contributions.
- Open-source exposure and networking opportunities with contributors worldwide.
- A cool Swag Kit to make you feel like you're part of Keyshade forever.
- A chance to shape an innovative product in the secrets management domain.
About Us
Keyshade is a self-funded, remote, open-sourced startup, based out of India. We are a small team working entirely remotely, and also being sustained a lot by the open-source ecosystem.
Our product deals in the domain of data and information security. We provide developer teams of all sized with the solution to the age-old problem of managing configurations for their applications. Keyshade aims at providing developers with an intuitive platform that enables them to outsource secret and configuration management, while they can put their entire focus in developing their application. We have developed our product with a security-first mindset, while also keeping into consideration the ease of use of the product.
Note:
The start date for this position is 1st March, 2025.
Bot checking
If you have went through the whole JD and if you are not a bot then give us a star on Github: https://git.new/keyshade


Description
Zycus is looking for a Meanstack/Mernstack Developer, who is motivated to combine the art of design with the art of programming. Responsibilities include implementing visual elements and their behavior with user interactions.. You will also be playing an active role on front end as well as backend development, and defining how the application looks and functions. We are looking for candidates with strong experience in MongoDB, Express.js, Angular, Node.js, Javascript, HTML, CSS, Jquery, Ajax. If you are a Mean Stack or full stack developer with a strong technical experience, then you could be the best fit for the role!
Roles & Responsibilities
· Creating Apps by working on all layers of architecture Understanding the flow of code and how it interacts with different components.
· Creating technical design documents by understanding requirements, and product objectives.
· Writing effective Unit tests
· Good analytical skills and innovative mind.
· Source code management.
· Excellent communication skills.
Requirements
· Total experience of 5 - 8 years
· Experience on Mean Stack/Mernstack (MongoDB, Express.js, Angular, Node.js)
· Strong understanding of JavaScript, object-oriented JS, its quirks, and workarounds·
· Strong hands on experience in JavaScript· Strong proficiency with JavaScript or CoffeeScript depending on your technology stack.·
· Good understanding of server-side CSS preprocessors such as Stylus, Less·
· Basic understanding of web markup, including HTML5 and CSS3· Good understanding of asynchronous request handling, partial page updates, JQuery, and AJAX·
· Proficient understanding of cross-browser compatibility issues and ways to work around such issues· Familiarity with JavaScript module loaders, such as Require.js and AMD·
· Proficient understanding of code versioning tools, such as SVN· Good understanding of browser rendering behaviour and performance
· Key Programming Skills: MEAN stack, full stack, Angular, Java, HTML/CSS, Javascript, Bootstrap.
· Experience working with Rest based APIs
Five Reasons Why You Should Join Zycus
1. Cloud Product Company: We are a Cloud SaaS Company and our products are created by using the latest technologies like ML and AI. Our UI is in Angular JS and we are developing our mobile apps using React.
2. A Market Leader: Zycus is recognized by Gartner (world’s leading market research analyst) as a Leader in Procurement Software Suites.
3. Move between Roles: We believe that change leads to growth and therefore we allow our employees to shift careers and move to different roles and functions within the organization
4. Get a Global Exposure: You get to work and deal with our global customers.
5. Create an Impact: Zycus gives you the environment to create an impact on the product and transform your ideas into reality. Even our junior engineers get the opportunity to work on different product features.

We have multiple open positions for full-stack engineers to work with us on a cutting-edge eCommerce trade analysis platform.
I am looking for multiple full stack MERN developers
Must have experience with:
- Typescript
- NextJS
- Firebase / AWS services
- Experience working on SaaS applications with a large codebase
Nice to have
- Tailwind
- DynamoDB
- Chart libraries such as ChartJS


Job Description:
Junior Full Stack Developer
Experience – 2+ Years
Technology
Angular – Must have
Node JS – Must have
Mongo dB – Good to have
HTML & CSS – Good to have
Typescript – Must have
WebSocket (Socket.IO/MQTT) – Add on
Web API creation in node – Good to have
Git – version control
Junior Full Stack Developer
Experience – 4+ Years
Technology
Angular – Must have
Node JS – Must have
Mongo dB – Must have
HTML & CSS – Must have
Typescript – Must have
WebSocket (socket io/MQTT) – Good to have
Web API creation in node – Must have
AWS LS – Add on
Git – version control

- Architecting, Developing, testing, and deploying robust products that are fast, scalable, and highly responsive
- Designing client-side and server-side architecture
- Building the front-end of applications through appealing visual design
- Developing and managing well-functioning databases and applications
- Designing and maintaining large and complex databases, both relational and non-relational databases.
- Establishing, refining and integrating development environment tools and software as needed
- Identifying production and non-production application issues as a part of the deployment
- Deploying applications on the AWS cloud with the ability to quickly debug hosting-related issues.
- Writing effective APIs
- Testing software to ensure responsiveness and efficiency
- Troubleshooting, debugging and upgrading software
- Creating security and data protection settings
- Building features and applications with a mobile responsive design
- Writing technical documentation
- Working with data scientists and analysts to improve software
What you need to have:
- BE/ ME/ BCA/ MCA- Any Computer/ IT Degree
- Expertise in Mongo DB, Express js, React js, Node js, HTML5, CSS3, LESS/ SASS, Bootstrap.
- 3-4 years of experience in server management, Microservice, and AWS knowledge is not mandatory but will be preferable.
- Strong analytical and problem-solving skills
- Comfortable around both front-end and back-end coding languages, development frameworks, and third-party libraries.
- Be a team player with a knack for visual design and utility.
- Also familiar with Agile methodologies


Full Stack Developer at Roarke will be responsible for building scalable software applications and is comfortable around both front-end and back-end coding languages, development frameworks, and third-party libraries. He/she is responsible for developing and designing front end web architecture, ensuring the responsiveness of applications, and working alongside graphic designers for application design features, among other duties
Responsibilities:
- Interface with technical team to determine reporting requirements of a given project
- Developing front-end website architecture.
- Designing user interactions on web pages.
- Developing back-end website applications.
- Creating servers and databases for functionality.
- Ensuring cross-platform optimization for mobile phones.
- Ensuring responsiveness of applications.
- Working alongside graphic designers for web design features.
- Seeing through a project from conception to finished product.
- Designing and developing APIs.
- Meeting both technical and consumer needs.
- Staying abreast of developments in web applications and programming languages.
Required Skills:
- Knowledge of essential front-end technologies like HTML, CSS, JavaScript
- At least one server-side programming language like Java, Python, PHP, Ruby, etc.
- Database management and caching mechanism
- Server and configuration management
- Version control systems like GitHub, GitLab, BeanStalk
- Basic UI/UX design
- Project management skills
- Security awareness
- The agile development approach to carry out the vision with multidisciplinary tasks without any hurry or disturbance.
- Generate an MVP (minimum viable product)
- Problem Solving Skills for you will be expected to be the go-to person during any technical difficulty while creating an application.
Desired Skills:
- Good communication and problem-solving skills.
- Project management skills.
- Problem-solving skills
- Focus on customer satisfaction
Required Experience:
- >4 years’ experience developing mobile and web applications
Required Education:
- A Bachelor’s degree in Computer Science or a related field


Expected Skills :-
- Knowledge/Application of data structures and algorithms.-
- Problem-solving attitude : This means when you face a problem (not necessarily technical), your natural reaction is "How can I solve it best" rather than "How can I get out of it/avoid it/overlook it"-
- Working knowledge in Java(SpringFramework) is a must.
- Working knowledge in ReactJs is a plus.- Working knowledge in Python, MongoDB is a plus.
- The founding team has extensive experience in launching and scaling up fintech products & New business verticals. The founders have rich leadership experience across Consulting, fintech and payment companies
Your day-to-day tasks will be
• Helping our product squads to bring the best testing practices into their workflow
• Understanding the flow of code and how it interacts with different components
• Understanding the product functionality and product objectives to implement
• Code contributions in the backend, and/or frontend with extensive unit tests
• Working with deployments teams and offering inputs on the testability of functional elements and designs
• Researching tools, methodologies, and trends and upgrading existing practices and processes
• Mentor junior engineers, do code reviews and help improve/maintain code quality
This might be for you if…
You have a passion for designing, development, and testing and you should enjoy upgrading your tech skills as tools and technologies evolve quickly.
• A Bachelor's degree in Computer Science, Computer Engineering, or a related field.
• 4+ years of overall professional web development experience including coding, scalability of codes and development, testing and
deployment best practices
• Firefighter – You love taking up fire calls on production or other critical systems
• Communicate effectively in fluent English
• Exposure to modern development environment including Node, Java, JavaScript, Typescript, Version Control, GIT, AWS, NoSQL
(MongoDB, DynamoDB), ReactJS
• Understands the value and impact of our product for prospective customers and is driven to make it a success
• Self-motivated, hard-working, coachable, and driven with a strong entrepreneurial spirit
• Enjoys working in a collaborative atmosphere where ideas are valued on merit
Company Overview
Vamstar is a data science powered global B2B healthcare marketplace platform. We Aggregate $2 trillion of demand for healthcare products
and services using machine learning and providing real-time insights to buyers and suppliers to accelerate transactions. Our enriched data on
buyers, outcomes, and contracts (including tenders) reveal interdependencies across complex contracting markets. By seeing the big picture
and all the connections, Vamstar provides healthcare stakeholders with valuable market insights and perspectives. Vamstar partners with
leaders in the industry, academia, and government in 70 countries to apply higher-level thinking to daily tasks and strategic issues


