Full Stack Developer (Contract - 6 Months)

Job Summary:

We are seeking a skilled MERN Stack Developer to join our dynamic development team. The ideal candidate will have hands-on experience in building modern web applications using MongoDB, Express.js, React.js, and Node.js. You will be responsible for designing and developing scalable, high-performance web applications and collaborating with cross-functional teams to deliver top-tier solutions.

Key Responsibilities:

• Develop and maintain responsive web applications using the MERN stack.
• Design, build, and maintain RESTful APIs and integrate third-party services.
• Collaborate with UI/UX designers, product managers, and other developers to deliver seamless user experiences.
• Optimize applications for performance and scalability.
• Write clean, maintainable, and efficient code.
• Participate in code reviews and provide constructive feedback.
• Debug and troubleshoot issues across the full stack.
• Implement security and data protection best practices.

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.

Requirements:

• Hands-on working knowledge and experience is required in:
• Extensive experience working on C#, . net and. net core frameworks
• Extensive experience working on React, Javascript and Typescript
• Relational Databases (SQL Server, Oracle, PostgreSQL, etc. )
• NoSQL Databases (Mongo, Cloud Spanner, etc. )
• Agile Methodologies (Scrum, TDD, BDD, etc. )
• Experience working with distributed teams across regions and time zones
• Strong organisational skills
• Display detailed, critical, quality-oriented, skeptical thinking about the product
• Experience with several of the following tools/technologies is desirable: GIT, Jira, Jenkins, SharePoint, Visual Studio Code.
• Microservices Architecture, Domain Driver Design, Test Driven Development is a bonus
• Design Patterns and implementing the Design Patterns
• Development of Complex Application and System Architectures
• Data Structures and Algorithms using Typescript, C# and. NET
• Experience working in Google Cloud will be a big bonus as all our systems are in the Cloud 7
• Knowledge of REST and gRPC API's is a bonus
• Knowledge of the following technologies is a plus:
• Continuous Integration and Continuous Delivery Tools like GitHub, Git, etc.
• Containerisation Technologies (Docker)

• Building interactive consumer data from multiple systems and RESTfully abstracting to the UI through a Node.js backend
• Define code architecture decisions to support a high-performance and scalable product with a minimal footprint
• Address and improve any technical issues
• Collaborate well with engineers, researchers, and data implementation specialists to design and create advanced, elegant and efficient systems

We are looking for an experienced full-stack engineer (with a path to becoming CTO) to join our founding team! We're a B2B SaaS startup with a young vibrant culture taking this idea from inception to impact.

About the job

We want to talk to you if:

• You've built multiple, kick-ass Chrome extensions
• You've built commercial apps using chat frameworks (e.g. Chat 21/Getstream.io etc.)
• You are a React.JS, Node.JS, Javascript, & Postgres wiz
• You have experience building multi-platform apps (Web + mobile web)
• Have built or implemented integration frameworks at scale (or experience with iPaaS frameworks)
• You are obsessive about clean, optimized & scalable code with copious documentation
• You are excited about building out a team and have aspirations to become a CTO

Having B2B SaaS Startup experience is preferred and a big plus

About Us

SmartCue wants to make product demos more effective and as a result help sales teams optimize their sales cycles. Our fundamental belief is that everything we build must eliminate or reduce friction for a salesperson.

Fast Track Your Application

• Think about the Ideal Customer for SmartCue
• Download the trial for SmartCue, sign up, download, experience the product, and provide feedback on how to overhaul the current experience of the product to add immediate value to the customer

• We don't need you to fully code any feature in its entirety and are not looking for free work.

The idea is to identify folks who get what we are trying to do with SmartCue and find faster alignment with the right candidate.

Here is a video walkthrough for additional context - https://www.loom.com/share/9609cf1855e64926b71a1ff840bd7347" target="_blank">https://www.loom.com/share/9609cf1855e64926b71a1ff840bd7347

The Opportunity

• In this position, you must be ready for a fast-paced startup environment.
• Our ideal candidate is willing to be flexible and able to wear many hats.
• Must have experience engineering and scaling technologies & teams with a proven track record of success.
• Our perfect candidate is well-versed in Chrome Extensions, creating delightful front-end experiences for users, enjoys building and scaling the backend infrastructure, and has an itch to adopt the newest technologies.
• Remote forever, if you like!

Duties Include

• Develop + understand the technological roadmap
• Develop feature rollout systems and processes
• Develop strategies and solutions from customer discovery sessions
• Hire + manage outside/contracted engineering talent
• Scale while staying lean through the early stages up to fundraising
• Oversee ClickUp for project and product management, roadmap, bugs, and backlog grooming
• Collaborate with marketing to optimize user experience, onboarding and reduce churn
• Oversee security + compliance strategies
• Help field support desk inquiries
• And more...

We are an equal opportunity employer and proud to be committed to diversity and inclusiveness. We consider all qualified applicants without regard to race, nationality, gender, gender identity or expression, sexual orientation, religion, disability, or age.

Key Skills: Java, Node.js, React js, PHP , JSON, Mongo DB, Rest APIs, Word Press, Web Services, Mern Stack, Mean Stack, Express Framework, Bootstrap with Angularjs.

1. Overall 3 to 4+ years of experience is required with the following skills.
2. Strong knowledge of JavaScript, Nodejs, Angular. Expresses, Reactjs, AJAX, and jQuery
3. Good working knowledge of working database platforms like dynamo DB MYSQL and Mongo DB Experience
4. working on wasp user interface technologies HTML and JavaScript, Knowledge of web servers and app servers AWS and MongoDB.
5. You need to work in an agile cross-functional team to create a customer experience and implement high-quality code into production.
6. Work on bug fixes and improvement of application performance.
7. Hands on experience with a framework with Angular JS and Node JS
8. Hands on experience with utility library with jQuery lib, bootstrap.js, Angularjs, Bootstrap, Date Picker, canvasjs.min.js, Socket.io, Moment timezone.js
9. Good Knowledge of AWS Amazon web services.
10. Should be Proficient in Linux
11. Experience on Node.js and Json rest APIs developments and web services knowledge are highly preferred.
12. Knowledge of cross-browser platform issues and implementation is highly preferred.