
Merchify is a one-stop solution for creators to start their merch store for zero investment. Our goal is to empower creators to monetize their content and grow their audience without the need for any upfront investment.
We’re in search of a back-end engineer that specializes in building highly scalable, highly available, reliable, secure, and fault-tolerant systems. As a part of the Core Backend team, you'll be working on some complex and interesting problems. With a lean team like ours, you'll have ample opportunities to work with various aspects of the application and build something meaningful.
What you'll do?
- Work closely with design, product management, and front-end teams to create REST APIs using NestJS
- Write reusable, testable, and efficient code
- Design and implementation of low-latency, high-availability, and performant applications
- Work on the implementation of security and data protection
- Review and optimize the app usage by monitoring key metrics and rectifying the issues proactively
Must haves
- 1+ years of experience in NodeJS-based frameworks like NestJS, and microservices-based architecture is a bonus.
- Understanding of OOPS concepts, persistence, threading, queuing, and caching.
- Thorough knowledge of designing, implementing and scaling relational and document-based databases
- A love for systems and an ability to think through and plan for their life cycles, edge cases, interactions, and failure modes
- First principles thinking, Excellent problem-solving ability
- A good all-rounder with a can-do, startup mentality
Nice to haves
- Experience with ReactJS
- Cloud deployment and scaling experience
Why you should join today?
Merchify wants to make a change for the better in lifelong learning. By joining at the start of the adventure you will have an opportunity to make this your own baby and have fun shaping the future of the industry.

Similar jobs
Senior Software Engineer
AiSensy
Gurugram, Haryana, India (On-site)
About AiSensy
AiSensy is a WhatsApp based Marketing & Engagement platform helping businesses like Adani, Delhi Transport Corporation, Yakult, Godrej, Aditya Birla Hindalco, Wipro, Asian Paints, India Today Group, Skullcandy, Vivo, Physicswallah, and Cosco grow their revenues via WhatsApp.
- Enabling 100,000+ Businesses with WhatsApp Engagement & Marketing
- 400 Crores+ WhatsApp Messages exchanged between Businesses and Users via AiSensy per year
- Working with top brands like Delhi Transport Corporation, Vivo, Physicswallah & more
- High Impact as Businesses drive 25-80% Revenues using AiSensy Platform
- Mission-Driven and Growth Stage Startup backed by Marsshot.vc, Bluelotus.vc & 50+ Angel Investors
Key Responsibilities:
- Build Scalable Architecture to handle millions of messages per day.
- Lead a team of engineers and guide them on a day to day basis.
- Collaborate with product managers, designers, and other engineers to define and implement new features and enhancements.
- Write clean, maintainable, and efficient code following best practices and coding standards.
- Conduct code reviews to ensure code quality and adherence to standards.
- Identify and resolve performance bottlenecks, bugs, and other issues.
- Mentor and provide guidance to junior engineers, fostering a culture of continuous learning and improvement.
- Participate in architectural discussions and contribute to the technical direction of the team.
- Stay up-to-date with the latest industry trends and technologies, and incorporate them into our development processes.
- Ensure the security, reliability, and performance of our applications.
- Collaborate with DevOps to streamline the deployment and monitoring processes.
Qualifications:
- Bachelor’s degree in Computer Science, Engineering, or a related field. Master’s degree preferred.
- Over all 5+ years of experience with proven experience 3+ years as a Software Engineer, with a strong track record of delivering high-quality software products.
- Expertise in the MERN stack (MongoDB, Express.js, React, Node.js).
- Strong understanding of JavaScript and modern JavaScript frameworks.
- Experience with front-end technologies like HTML5, CSS3, and responsive design.
- Strong understanding of software development methodologies, including Agile and Scrum.
- Experience with RESTful API design and development.
- Experience with database design and management, particularly MongoDB.
- Familiarity with cloud platforms such as AWS.
- Excellent problem-solving and analytical skills.
- Strong communication and collaboration abilities.
- Experience with version control systems such as Git.
- Knowledge of containerization and orchestration tools like Docker and Kubernetes
Role & Responsibilities:
We are seeking a Software Developer with 2-10 year’s experience with strong foundations in Python, databases, and AI technologies. The ideal candidate will support the development of AI-powered solutions, focusing on LLM integration, prompt engineering, and database-driven workflows. This is a hands-on role with opportunities to learn and grow into advanced AI engineering responsibilities.
Key Responsibilities
• Develop, test, and maintain Python-based applications and APIs.
• Design and optimize prompts for Large Language Models (LLMs) to improve accuracy and performance.
• Work with JSON-based data structures for request/response handling. • Integrate and manage PostgreSQL (pgSQL) databases, including writing queries and handling data pipelines.
• Collaborate with the product and AI teams to implement new features. • Debug, troubleshoot, and optimize performance of applications and workflows.
• Stay updated on advancements in LLMs, AI frameworks, and generative AI tools.
Required Skills & Qualifications
• Strong knowledge of Python (scripting, APIs, data handling).
• Basic understanding of Large Language Models (LLMs) and prompt engineering techniques.
• Experience with JSON data parsing and transformations.
• Familiarity with PostgreSQL or other relational databases.
• Ability to write clean, maintainable, and well-documented code.
• Strong problem-solving skills and eagerness to learn.
• Bachelor’s degree in Computer Science, Engineering, or related field (or equivalent practical experience).
Nice-to-Have (Preferred)
• Exposure to AI/ML frameworks (e.g., LangChain, Hugging Face, OpenAI APIs).
• Experience working in startups or fast-paced environments.
• Familiarity with version control (Git/GitHub) and cloud platforms (AWS, GCP, or Azure).
What We Offer
• The opportunity to define the future of GovTech through AI-powered solutions.
• A strategic leadership role in a fast-scaling startup with direct impact on product direction and market success.
• Collaborative and innovative environment with cross-functional exposure.
• Growth opportunities backed by a strong leadership team.
• Remote flexibility and work-life balance.
Responsibilities:
We’re looking for someone who is enthusiastic, comfortable with uncertainty, flexible, great with people and isn’t afraid to roll up their sleeves and get their hands dirty. Every day is an opportunity to bring your vision to life, and to expand, learn, and grow. No idea is left unconsidered. No voice is left unheard.
- Supporting system design, development and maintenance
- Taking responsibility for personal technical quality standards within the team
- Assisting in defining structured practices, especially in source code management, building and deployment
- Optimising applications for maximum speed and scalability
- 2-6 years of experience
Skills
NodeJs
We are seeking a skilled Node.js + Python Developer to join our team. The successful candidate will be responsible for developing and maintaining web applications using Node.js and Python. The ideal candidate will have a strong understanding of both Node.js and Python, as well as web application development. Responsibilities:
Developing and maintaining web applications using Node.js and Python
Write clean and efficient code that adheres to Node.js and Python coding standards
Collaborate with other developers and team members to design and implement new features
Troubleshoot and debug issues in existing code
Create and maintain technical documentation
Requirements:
Strong knowledge of Node.js and Python
Familiarity with front-end technologies such as HTML, CSS, and JavaScript
Experience with MySQL/Mongo and database design
Good understanding of object-oriented programming and design patterns
Strong problem-solving skills and attention to detail
Good communication skills and ability to work in a team environment
Preferred Qualifications:
Experience with popular Node.js frameworks such as Express or Koa
Experience with OpenAi APIs
Knowledge of machine learning and data science libraries in Python such as TensorFlow, Scikit-learn, and Pandas
Experience with RESTful API development
Experience with payment gateway integrations
Desired candidates must have 2-6 years experience as NodeJs Developer. If the candidate is not able to relocate to Gurgaon then we can also provide permanent Work from home for this position.
Roles and responsibilities:
- Responsible for understanding functional and business requirements and translate them into effective code
- Provide support till deployment of code into production.
- Ownership for ensuring code optimization, problem diagnosis, and on-time delivery
- Implement solutions as per the pre-defined framework /guidelines and adherence to processes
- Finding an optimal solution for the problem statement
- Conduct peer code review.
What candidate should know about:
- Excellent hands-on experience with Node.Js, Express.Js, JavaScript
- Understanding the nature of asynchronous programming and its quirks and workarounds
- Excellent hands-on experience with MongoDB, Mongo aggregation, MySQL
- Ability to build REST services, Authentications, MVC applications
- Excellent Object Oriented Programming skills and ability to write modular, secure, scalable, and maintainable code
- Experience with Elastic Search, Redis.
- Knowledge about AWS components (S3, EC2, Cloudfront, Redis Clusters, etc.)
- Self-learning abilities are required
- Familiarity with upcoming new technologies is a strong plus










