
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

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Role & Responsibilities
We are currently seeking a Senior Engineer to join our Financial Services team, contributing to the design and development of scalable system.
The Ideal Candidate Will Be Able To-
- Take ownership of delivering performant, scalable and high quality cloud based software, both frontend and backend side.
- Mentor team members to develop in line with product requirements.
- Collaborate with Senior Architect for design and technology choices for product development roadmap.
- Do code reviews.
Ideal Candidate
- Strong Software Engineer fullstack profile using NodeJS, Python, and React
- Mandatory (Experience) - Must have 6+ YOE in Software Development using Python and NodeJS (For backend) & React (For frontend)
- Mandatory (Core Skills 1): Must have strong experience in working on Typescript
- Mandatory (Core Skills 2): Must have experience in message based systems like Kafka, RabbitMq, Redis
- Mandatory (Core Skills 3): Databases - PostgreSQL & NoSQL databases like MongoDB
- Mandatory (Company) - Product Companies Only
- Mandatory (Education) - B.Tech or Dual degree (Btech and Mtech or Integrated Msc/MS) from Tier 1 Engineering Institutes. Candidates from other institutions will not be considered unless they come from top-tier product companies
- Mandatory (Note) : This role is a hybrid role (2 days WFO)
- Preferred (Experience): Experience in Fin-Tech, Payment, POS and Retail products is highly preferred
- Preferred (Mentoring): Experience in mentoring, coaching the team.
Key Responsibilities
Develop and maintain scalable applications using MongoDB, MySQL/PostgreSQL, Node.js, Express.js, React.js, and TypeScript.
Design, develop, and optimize RESTful APIs and GraphQL services.
Lead and mentor a team of developers, ensuring best coding practices, performance, and security.
Collaborate with UI/UX designers, product managers, and DevOps teams to streamline development.
Contribute to AI-powered application development (if experienced in AI/ML).
Required Skills & Qualifications
✅ 2.5+ years of experience in MERN stack development.
✅ Expertise in React.js, TypeScript, Node.js, and Express.js.
✅ Strong database management skills with MongoDB, MySQL, or PostgreSQL.
✅ Proven experience in leading development teams and conducting code reviews.
✅ Excellent problem-solving and communication skills.
✅ Bonus: Experience in AI/ML-based applications is a plus.
Why Join Us?
🚀 Exciting Projects – Work on AI-driven and scalable web solutions.
🤝 Leadership Opportunity – Lead and mentor a talented team of developers.
💰 Competitive Compensation – ₹40K - ₹60K per month.
🏡 Dynamic Work Environment – Collaborative, innovation-driven workplace.
Responsibilities:
- Design and develop scalable, responsive, and efficient web applications using the MERN stack.
- Collaborate with cross-functional teams to define, design, and ship new features.
- Work on both front-end and back-end development tasks, ensuring the high performance and responsiveness of the applications.
- Write clean and maintainable code and participate in code reviews.
- Implement and maintain security and data protection measures.
- Integrate third-party APIs and services.
- Troubleshoot, debug, and resolve software defects and issues.
- Stay up-to-date with emerging technologies and industry trends.
Requirements:
- Minimum of 1-2 years of experience as a MERN Stack developer.
- Bachelor's degree in computer science, engineering, or a related field.
- I have proven experience as a full-stack developer with expertise in the MERN stack.
- Strong proficiency in JavaScript (ES6+), HTML5, CSS3,.
- Experience with front-end frameworks like React.js.
- Knowledge of state management libraries such as Redux.
- Solid understanding of server-side development using Node.js and Express.js.
- Experience with MongoDB and database design.
- Knowledge of RESTful API design and implementation.
- Familiarity with Git and version control systems.
- Excellent problem-solving and debugging skills.
- Strong communication and collaboration skills.
- Ability to work in a fast-paced and dynamic environment.
Job Title: Senior Full Stack Engineer
Location: Bangalore
About threedots:
At threedots, we are committed to helping our customers navigate the complex world of secured credit financing. Our mission is to facilitate financial empowerment through innovative, secured credit solutions like Loans Against Property, Securities, FD & More. Founded by early members of Groww, we are a well funded startup with over $4M in funding from India’s top investors.
Role Overview:
The Senior Full Stack Engineer will be responsible for developing and managing our web infrastructure and leading a team of talented engineers. With a solid background in both front and back-end technologies, and a proven track record of developing scalable web applications, the ideal candidate will have a hands-on approach and a leader's mindset.
Key Responsibilities:
- Lead the design, development, and deployment of our Node and ReactJS-based applications.
- Architect scalable and maintainable web applications that can handle the needs of a rapidly growing user base.
- Ensure the technical feasibility and smooth integration of UI/UX designs.
- Optimize applications for maximum speed and scalability.
- Implement comprehensive security and data protection.
- Manage and review code contributed by the team and maintain high standards of software quality.
- Deploy applications on AWS/GCP and manage server infrastructure.
- Work collaboratively with cross-functional teams to define, design, and ship new features.
- Provide technical leadership and mentorship to other team members.
- Keep abreast with the latest technological advancements to leverage new tech and tools.
Minimum Qualifications:
- Bachelor’s or Master’s degree in Computer Science, Engineering, or a related field.
- Minimum 3 years of experience as a full-stack developer.
- Proficient in Node.js and ReactJS.
- Experience with cloud services (AWS/GCP).
- Solid understanding of web technologies, including HTML5, CSS3, JavaScript, and responsive design.
- Experience with databases, web servers, and UI/UX design.
- Strong problem-solving skills and the ability to make sound architectural decisions.
- Proven ability to lead and mentor a tech team.
Preferred Qualifications:
- Experience in fintech
- Strong knowledge of software development methodologies and best practices.
- Experience with CI/CD pipelines and automated testing.
- Familiarity with microservices architecture.
- Excellent communication and leadership skills.
What We Offer:
- The opportunity to be part of a founding team and shape the company's future.
- Competitive salary with equity options.
- A creative and collaborative work environment.
- Professional growth opportunities as the company expands.
- Additional Startup Perks
Job Description
Technical lead who will be responsible for development, managing team(s), monitoring the tasks / sprint. They will also work with BA Persons to gather the new requirements and change request. They will help solve application issues and helping developers when they are stuck.
Responsibilities
· Design and develop application based on the architecture provided by the solution architects.
· Help team members and co developers to achieve their tasks.
· Maintain / monitor the new work items and support issues and have to assign it to the respective developers.
· Communicate with BA persons and Solution architects for the new requirements and change requests.
· Resolve any support tickets with the help of your team within service timelines.
· Manage sprint to achieve the targets.
Technical Skills
· Microsoft .NET MVC
· .NET Core 3.1 or greater
· C#
· Web API
· Async Programming, Threading, and tasks
· Test Driven Development
· Strong expert in SQL (Table Design, Programing, Optimization)
· Azure Functions
· Azure Storage
· MongoDB, NoSQL
Qualifications/Skills Desired:
· Any Bachelor’s degree relevant to Computer Science. MBA or equivalent is a plus
· Minimum of 8-10 years IT experience and managing a team(s) out of which 4-5 years should be as a technical/team lead.
· Strong verbal and written communication skills with the ability to adapt to many different personalities and conflict resolution skills required
· Must have excellent organizational and time management skills with strong attention to detail
· Confidentiality with privacy-sensitive customer and employee documents
· Strong work ethic - demonstrate good attitude and judgment, discretion, and maintain high level of confidentiality
· Previous experience of customer interactions
Roles and Responsibilities:
· Design and implement scalable web applications and platforms using technologies such as Typescript, NestJS, Angular, NodeJS, ExpressJS, TypeORM, and Postgres
· Good understanding of web and REST API design patterns
· Experience with AWS technologies such as EKS, ECS, ECR, Fargate, EC2, Lambda, ALB will be an added advantage
· Hands-on experience with unit test frameworks like Jest
· Good working knowledge of JIRA, Confluence, Git
· Basic knowledge of Kubernetes and Terraform for infrastructure as code
· Basic knowledge of Docker compose and Docker
· Strong understanding of microservices architecture and ability to implement components independently
· Proven track record of problem-solving skills
· Excellent communication skills
Technical Skills & Competencies: Mandatory:
Web Development – HTML, CSS, JavaScript
Frameworks – ReactJS/AngularJS
Server-side development – Python/Django/Node.js
Database: SQL or NoSQL Databases (SQL Server/ MongoDB)
API Design concepts and Development of RESTful web services
Preferable:
- Familiarity with the Development of reusable frameworks, libraries to be used by multiple development teams
- Familiarity with cloud-native application architecture patterns
- Hands-on experience on project management tools like Jira
- Experience using DevOps Tools for CI/CD
- Conversant with agile methodologies
Roles & Responsibilities
- Work independently or in a small team setup
- Manage a team of highly skilled Frontend/Full Stack and Backend developers
- Creating, executing, and maintaining project plans including activity definition, sequence, dependencies, work effort, duration, and resource requirements
- Work with the technical team, communicating requirements and ensuring all product development meets the goals of the project and overall business and strategic goals
- Project management including release management, add-on compatibility reporting, updating documentations
- Assist in other ad-hoc or administrative tasks as part of daily/routine business activities
- Work with product technical architects to design new products or enhancements. Take part in system development including analysis, coding, and testing
- Performs design and code reviews with senior technical staff
- Act like the person everyone turns to resolve tough technical problems
- Work closely with other teams/vendors to connect front-end components with the other (often third-party) web and data services and support the back-end developers by integrating their work with the application
- Mentors team on proper standards/techniques to improve their accuracy and efficiency
- Performs the unit testing, system integration testing and assist with user acceptance testing
- Articulates business requirements in sufficient detail such that a technical solution can be designed and engineered
- Develops technical understanding of how the data flows from various source
- Provide ongoing support to applications used within the organization
Requirement
- 5+ years of experience in product development, with 2+ years of experience in a leadership role in current organization
- Reliable, self-motivated, and self-disciplined individual capable of planning and executing multiple projects simultaneously within a fast-paced environment
- Exceptional debugging skills and strong experience with performance tuning
- Excellent technical, analytical, and organizational skills
- Good range of hands-on technical experience
- Expert knowledge in Systems Development Life Cycle (SDLC)
- Expert understanding of Node.js and JavaScript
- Familiarity with code revisioning and repo maintenance on Git, code profiling and auditing
Skills:
- .NET framework, VB, C#
- HTML 5, Bootstrap, CSS, Less .
- Communication Protocols like HTTP, TCP, WCF, Web API, Modbus.
- Databases- MS SQL Server 2008 R2, MySQL. Knowledge on Redis, MongoDB.
- Scripting language -Java-Script, jQuery, AngularJS, SignalR, Ajax.
- AWS SDK preferred, Cloud Migration., IIS, Self-hosting, window server,
- Other tools -Postman & Fiddler, Tortoise SVN, Mantis bug tracking, Redmine.
Key Strengths :
- Good debugging skills.
- A major responsibility includes planning development cycle, designing, module development, code merge, Unit / Integration testing etc.
- Highly motivated team player.
- Experience in working on multiple projects simultaneously.
- Quick learning of any new technologies.
- Capable to take independent responsibility as well as ability to contribute and be a productive team member.
Key responsibilities:
- Involved into discussion of design and development of new feature enhancement.
- Involved in integration with the IoT devices over the TCP binary protocol.
- Involved in design and development of Web API to expose the data uploaded by devices to third party applications.
- Coordinating with the testing team for fixing bugs.
- Coordinating with firmware (Embedded) team for device integration.
- End to end design and development of modules.
- Primary responsibility is to take up product development as a full stack developer and ability to work with the larger product team, arrive at best architectural approach, choose most appropriate frameworks, code and deliver
- Shown success as an individual contributor. Should have consistently demonstrated ability and commitment to deliver major initiatives in a timely manner
- Embrace good development practices including design specification, coding standards, unit testing and code reviews
- A selfstarter, who loves to take on hard problems, loves solving service scalability problems, enjoys breaking things and enthusiastic to learn new technologies and working in startup environments











