MERN Stack Developer

Required Skills/Experience:

• 6+ years of experience in designing and developing enterprise and/or consumer-facing applications using technologies and frameworks like JavaScript, Node.js (Javascript), ReactJS, Angular, SCSS, CSS, React Native
• 3+ years experience in leading teams (guide, design, track), taking responsibilities to deliver as per the agreed-upon schedules
• Hands-on experience with SQL and NoSQL databases
• Hands-on experience working in Linux OS
• Very good debugging and problem resolution experience
• Experience developing responsive web applications
• Very good communication (verbal and written) to interact with our customers
• Ability and interest to learn alternative technologies based on need
• Experienced in product development lifecycle (prototyping, hardening, testing etc.)

Additional Skills/Experience:

• Working experience with Python and NoSQL databases such as MongoDB, Cassandra
• Eagerness to participate in product functional and user experience designs
• Experience in AI, ML, NLP, and Predictive Analytics domains
• Familiarity with i18n, latest trends in UI and UX designs
• Experience with implementation of payment gateways applicable in different countries
• Experience with CI/CD, Jenkins, Nginx

• Work with a team to provide end to end solutions including coding, unit testing and defect fixes.
• Work to build scalable solutions and work with quality assurance and control teams to analyze and fix issues 
• Develop and maintain APIs and Services in Node.js/Python 
• Develop and maintain web-based UI’s using front-end frameworks 
• Participate in code reviews, unit testing and integration testing 
• Participate in the full software development lifecycle, from concept and design to implementation and support 
• Ensure application performance, scalability, and security through best practices in coding, testing and deployment 
• Collaborate with DevOps team for troubleshooting deployment issues 

Qualification 

● 1-5 years of experience as a Software Engineer or similar, focusing on software development and system integration 

● Proficiency in Node.js, Typescript, React, Express framework 

● In-depth knowledge of databases such as MongoDB 

● Proficient in HTML5, CSS3, and responsive UI design 

● Proficiency in any Python development framework is a plus 

● Strong direct experience in functional and object oriented programming using Javascript 

● Experience with cloud platforms (Azure preferred) 

● Microservices architecture and containerization 

● Expertise in performance monitoring, tuning, and optimization 

● Understanding of DevOps practices for automated deployments 

● Understanding of software design patterns and best practices 

● Practical experience working in Agile developments (scrum) 

● Excellent critical thinking skills and the ability to mentor junior team members 

● Effectively communicate and collaborate with cross-functional teams 

● Strong capability to work independently and deliver results within tight deadlines 

● Strong problem-solving abilities and attention to detail

Why This Role Matters

We’re looking for a Principal Engineer to lead the architecture and execution of our GenAI-powered, self-serve marketing platforms. You will work directly with the CEO to shape, build, and scale products that change how marketers interact with data and AI. This is intrapreneurship in action — not a sandbox innovation lab, but a real-world product with traction, velocity, and high stakes.

What You'll Do

• Co-own product architecture and direction alongside the CEO.
• Build GenAI-native, full-stack platforms from MVP to scale — powered by LLMs, agents, and predictive AI.
• Own the full stack: React (frontend), Node.js/Python (backend), GCP (infra), BigQuery (data), and vector databases (AI).
• Lead a lean, high-caliber team with a hands-on, unblock-and-coach mindset.
• Drive rapid iteration with rigor, balancing short-term delivery with long-term resilience.
• Ensure scalability, observability, and fault tolerance in multi-tenant, cloud-native environments.
• Bridge business and tech — aligning execution with evolving user and market insights.

What You Bring

• 8–12 years of experience building and scaling full-stack, data-heavy or AI-driven products.
• Fluency in React, Node.js, and Google Cloud (Functions, BigQuery, Cloud SQL, Airflow, etc.).
• Hands-on experience with GenAI tools (LangChain, OpenAI APIs, LlamaIndex) is a bonus.
• Track record of shipping products from ambiguity to impact.
• Strong product mindset — your goal is user value, not just elegant code.
• Architectural leadership with ownership of engineering rigor and scaling best practices.
• Startup or founder DNA — you’ve built things from scratch and know how to move fast without breaking things.

Who You Are

• A former founder, senior IC, or tech lead who’s done zero-to-one and 1-to-n scaling.
• Hungry for ownership and velocity — frustrated by bureaucracy or stagnation.
• You code because you care about solving real problems for real users.
• You’re pragmatic, hands-on, and grounded in first principles.
• You understand that great software isn't just shipped — it's hardened, maintained, and evolves with minimal manual effort.
• You’re open to evolving into a founding engineer role with influence over the tech vision and culture.

What You Get

• Equity in a high-growth product-led startup.
• A chance to build global products out of India with full-stack and GenAI innovation.
• Access to high-context decision-making and direct collaboration with the CEO.
• A tight, ego-free team and a culture that values clarity, ownership, learning, and candor.

Why YOptima?

YOptima is redefining how leading marketers unlock growth through full-funnel, AI-powered media solutions. As part of our growth journey, this is your opportunity to own the growth charter for leading brands and agencies globally and shape the narrative of a next-generation marketing platform.

Ready to lead, build, and scale?

We’d love to hear from you.

We are seeking an experienced MERN Stack Team Leader to join our team. The successful candidate will be responsible for leading a team of developers in designing, developing, testing, and deploying web applications using the MERN stack. The MERN Stack Team Leader will be responsible for ensuring that the team meets project deadlines, stays within budget, and produces high-quality code that meets the client's requirements. This position requires strong leadership skills, technical knowledge, and the ability to work in a fast-paced environment.

Key Responsibilities

• Manage a team of developers and oversee the development of web applications using the MERN stack
• Assign tasks to team members and ensure that they are completed on time and within budget
• Participate in the design, development, and testing of web applications using the MERN stack
• Collaborate with clients to gather requirements and ensure that their needs are met
• Ensure that the team follows best practices in software development, code review, and testing
• Identify and mitigate project risks
• Communicate project status to stakeholders and management
• Mentor and coach team members to help them grow and develop their skills
• Stay up-to-date with emerging trends and technologies in web development

Qualifications

• Bachelor's degree in Computer Science or a related field
• At least 4 years of experience in web development using the MERN stack
• At least 8 yr experience in Development
• Strong knowledge of MongoDB, Express.js, React.js, and Node.js
• Excellent communication and interpersonal skills
• Strong problem-solving and analytical skills
• Ability to work in a fast-paced environment and manage multiple projects simultaneously

If you have a passion for leading a team of developers to build cutting-edge web applications using the MERN stack, we encourage you to apply for this exciting opportunity.

• Proficient in creating Web (Responsive) applications using Angular 8+, AngularJS, JavaScript, JQuery. 
• Experience developing/consuming RESTAPIs
• Knowledge of multiple back-end languages Like Java, Python and JavaScript frameworks(e.g. Node.js)
• Familiarity with databases (e.g.MSSQL, MySQL), and UI/UX design
• Hands-on experience with code versioning systems like Git, SVN. 

Roles and Responsibilities

• Strong proficiency in Java and building scalable enterprise applications
• Can think of architectural design at scale
• Love solving complex and challenging problems
• Have good knowledge of design and architectural patterns
• Thrive to implement Industry’s best practices and coding standards
• High obsession for Quality and Performance
• Good knowledge on performance optimization, SQL tuning, caching techniques
• Like to collaborate with people, share knowledge, learn from others and mentor juniors

Responsibilities:

• Make changes in the existing code base of talent marketplace and implement new features.
• Collaborate with stakeholders that are involved in product design (marketing specialist and product manager).
• Report the progress to other stakeholders.
• Do bug fixes and push the source codes to the live server.
• Be responsive to change requests and feature requests
• Create Unit and Integration tests to ensure the quality of code

Requirements:

• Experience in Node js , MongoDB and Angular.
• Experience in JavaScript development.
• Understanding in MEAN or MERN Stack.
• Experience in the use of project planning tools (JIRA, Version One, GitHub, etc.)
• Excellent written and verbal communication skills (English).
• Understanding of various technologies including applications and databases.
• Able to handle multiple projects and competing deadlines
• Good understanding of overall web design including basic usability, accessibility, industry standards, architecture, and navigation
• Able to handle multiple projects and competing deadlines
• Fluent knowledge of latest HTML/CSS standards and best practices
• Experience building Responsive websites for web, tablet and mobile devices