MERN Stack Developer

Role Overview

We are looking for an Engineering Manager who thrives in a fast-paced startup environment, is hands-on with development, and can lead our engineering team to build and scale robust, high-performing systems. You will drive architectural decisions, mentor a team of talented engineers, and collaborate closely with product, design, and business teams to execute our ambitious roadmap. You will be at the forefront of scaling our infrastructure to support billions of messages, ensuring real-time engagement for businesses at scale.

Key Responsibilities

• Technical Leadership: Own the engineering roadmap, ensuring scalability, reliability, and performance of our systems.
• Hands-on Development: Dive into the code when necessary, set high coding standards, and lead by example.
• Team Management: Lead, mentor, and scale a high-performing engineering team, fostering a strong culture of ownership and innovation.
• System Scalability: Architect and optimize scalable and resilient backend & frontend systems handling millions of messages per day.
• High Availability & Performance: Design systems that can handle billions of API calls and ensure minimal downtime.
• Agile Execution: Drive sprint planning, prioritization, and timely delivery of features in an agile development environment.
• Collaboration: Work closely with product, design, and business teams to align engineering efforts with company goals.
• DevOps & Security: Ensure best practices for CI/CD, cloud infrastructure (AWS/GCP), and security compliance.
• Tech Stack Evolution: Stay ahead of emerging technologies and drive innovation in AiSensy’s architecture.

What You Bring

• 8+ years of experience in software development, with at least 2 years in a leadership/managerial role.
• Expertise in modern tech stacks – Proficiency in MERN (MongoDB, Express, React, Node.js) stack or similar.
• Strong knowledge of cloud platforms (AWS) and microservices architecture.
• Proven experience in scaling high-traffic, distributed systems handling billions of messages per month.
• Hands-on experience with Docker, Kubernetes, and CI/CD pipelines.
• Strong problem-solving skills and an ability to hustle in a fast-paced startup environment.
• Excellent communication skills and a data-driven decision-making approach.
• Passion for building great products, coaching engineers, and driving tech excellence.

What We Offer

• Competitive Compensation & Benefits aligned with your experience and the impact you bring.
• Opportunity for Growth in a rapidly expanding B2B SaaS company.
• Cutting-Edge Technology & Projects in the WhatsApp Business API and Click to WhatsApp Ads space.
• Collaborative Work Environment that fosters innovation, learning, and career development.
• Flexible & Inclusive Culture, where every team member has a voice and the chance to make a significant impact.

What You Will be Doing:

● Develop and maintain software that is scalable, secure, and efficient

● Collaborate with Technical Architects & Business Analysts

● Architect and design software solutions that meet project requirements

● Mentor and train junior developers to improve their skills and knowledge

● Conduct code reviews ensuring the code is maintainable, readable, and efficient

● Research and evaluate new technologies to improve the processes

● Effective communication skills, particularly in documenting and explaining code and technical concepts.

Skills We Are Looking For:

● 5+ years extensive hands-on experience with NodeJS and Typescript

● Strong understanding of RESTful API design and implementation.

● Comfortable with debugging, performance tuning, and optimizing Node.js applications.

● Strong problem-solving abilities and attention to detail.

● Experience with authentication and authorization protocols, such as OAuth, JWT and session management.

● Understanding of security best practices in backend development, including data encryption and vulnerability mitigation.

Bonus Skills

● Experience with server-side frameworks such as Express.js or NestJS.

● Familiarity with cloud platforms (e.g., AWS, Azure, (preferred) Google Cloud) and their services for backend deployment.

● Familiarity with NoSQL databases (Mongo preferred), and the ability to design and optimize database queries.

Why You’ll Love It Here

● Innovative Culture - We believe in pushing boundaries

● Impactful Work - You won’t just write code, you will help build the future

● Collaborative Environment - We believe that everyone has a voice that matters

● Work Life Balance - Our flexible work environment encourages you to have space to

recharge

Engineering Head / Tech Lead (React + Node.js)

About MrPropTek

MrPropTek is building the future of real estate technology. We're looking for a hands-on Engineering Head / Tech Lead to drive our tech strategy and lead the development of scalable web applications across frontend and backend using React and Node.js.

Responsibilities

• Lead and mentor a team of full-stack developers
• Architect and build scalable, high-performance applications
• Drive end-to-end development using React (frontend) and Node.js (backend)
• Collaborate with product, design, and business teams to align on priorities
• Enforce code quality, best practices, and agile processes
• Oversee deployment, performance, and security of systems

Requirements

• 7+ years in software development; 3+ years in a tech lead or engineering management role
• Deep expertise in React.js, Node.js, JavaScript/TypeScript
• Experience with REST APIs, cloud platforms (AWS/GCP), and databases (SQL/NoSQL)
• Strong leadership, communication, and decision-making skills
• Startup or fast-paced team experience preferred

Job Location- Mohali, Delhi/ NCR

Job Type: Full-time

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.

Job Summary:

Greenie Startup is seeking a highly motivated and experienced Backend Developer to join our team. The ideal candidate should have a strong understanding of NodeJS, Distributed Systems, MongoDB, React, and other backend languages. The candidate will be responsible for designing, developing, and maintaining backend applications for our platform.

Responsibilities:

●     Develop and maintain backend services using NodeJS, MongoDB, and other backend languages

●     Design and develop RESTful APIs for the platform

●     Work with the team to develop scalable and fault-tolerant distributed systems

●     Implement Authentication, Identity Management, and Authorization mechanisms for the platform

●     Collaborate with the front-end team to integrate the backend services with the user-facing application

●     Write clean and maintainable code with a focus on performance and scalability

Requirements:

●     Bachelor's or Master's degree in Computer Science or a related field

●     At least 5 years of experience in backend development

●     Strong understanding of NodeJS, MongoDB, and other backend languages

●     Experience with distributed systems and RESTful APIs

●     Experience with React is a plus

●     Strong understanding of Authentication, Identity Management, and Authorization mechanisms

●     Familiarity with Firewall Security and other security mechanisms

●     Strong problem-solving skills and attention to detail

We're looking to hire expert Laravel developers with strong command over database concepts and preferably, ability to work as a full stack developer utilising Angular/Laravel or Vue as a frontend tech stack. Minimum 4 years experience is required.

As a senior software developer, we expect the following qualifications:

• Has a longer IT technical training in computer science or similar
• Have proven experience JavaScript
• Have proven experience of developing REST-based services
• Have proven experience in PHP and JAVA
• Have proven experience in Laravel, Symfony, and Composer
• Have proven experience with CSS, SASS, and HTML
• Proven experience with Vue.js, Angular or React

Personal qualifications:

• You are quick to put you into new tasks and get an overview.
• As a person manages to get support for your suggestions and solutions.
• Your efforts are focused and you take pride in having completed your tasks, which include seen by you adhere to deadlines.
• Your work is characterised by being both structured and systematic which for example is seen in your documentation.

Technical Roles and Responsibilities

-  Demonstrate a systematic and disciplined architecture, system design and programming approach following a standard software development lifecycle

-  Meticulous attention to detail and strong focus on clear and practical documentation

-  Work closely with senior management, Development Manager, Project Manager, and a team of developers.

- Design, Code, Unit Test and support Software components

-  Deliver quality software in a time following standard software development processes

-  Analyze problems raised in software development or production environments and provide timely solutions

-  Develop, prepare and maintain system documentation, including program descriptions, operational procedures etc.

-  Act as the second line of support during production problems.

Mandatory Skills:

Software Engineering

u  Strong experience in agile methodologies and test driven development.

u  Experience in software development using open source technologies.

u  Experience in automated software testing.

u  Knowledge in domain-driven design, design patterns and enterprise integration patterns.

u  Must have experience in delivering software via complete Continuous Integration and Continuous Delivery (CI/CD) pipeline.

Software Development

u  Must be able to code in Java (SpingBoot and Spring Cloud Services).

u  Experience in some of the technologies below:

o PaaS: Pivotal Cloud Foundy/Openshift/ AWS/ Azure/ Docker/ Kubernetes

o Data: MySQL/ Postgres/ Oracle/ MongoDB/ Elasticsearch

o Cache: Redis/ Memcached

o UI: HTML5,Bootstrap, CSS, Angular 4/ ReactJS/RxJS

 - Strong knowledge in CI/CD toolset such as Ansible, Artifactory, Jenkins, BitBucket, SonarQube, Fortify,  Flyway, Jira and Confluence.

-  Strong knowledge in automated testing toolset such as jUnit, Mockito, cucumber, Selenium etc.

-  Strong knowledge in scripting languages such as Groovy and Linux shell.