Fullstack Developer

Mandatory Skills

• Efficiently able to design and implement software features. 
• Expertise in at least one Object Oriented Programming language (Python, typescript, Java, Node.js, Angular, react.js C#, C++).
• Good knowledge on Data Structure and their correct usage.
• Open to learn any new software development skill if needed for the project.
• Alignment and utilisation of the core enterprise technology stacks and integration capabilities throughout the transition states.
• Participate in planning, definition, and high-level design of the solution and exploration of solution alternatives.
• Identify bottlenecks and bugs, and devise appropriate solutions.
• Define, explore, and support the implementation of enablers to evolve solution intent, working directly with Agile teams to implement them.
• Good knowledge on the implications of Cyber Security on the production. 
• Experience architecting & estimating deep technical custom solutions & integrations.

About the Role

We are hiring an experienced MERN Stack Developer who can independently build and scale full-stack applications from scratch. The ideal candidate must have strong skills in TypeScript, React.js, Node.js, Redux, and REST APIs, along with a solid understanding of microservices architecture, mobile API integrations, and responsive design.

Experience with LLMs, RAG architecture, Kafka, Redis, webhooks, and database systems like PostgreSQL, MySQL, and MongoDB is essential. You’ll be working on scalable systems, enterprise-grade platforms, and AI-integrated products.

Key Responsibilities

• Develop and maintain full-stack web applications using React.js (with TypeScript) and Node.js (Express/NestJS)
• Build and document robust RESTful APIs and mobile-ready endpoints
• Implement and consume webhooks for third-party integrations and internal event-based workflows
• Ensure responsive design principles across devices and screen sizes
• Integrate with mobile applications via secure and scalable APIs
• Work with databases including PostgreSQL, MySQL, and MongoDB
• Integrate Large Language Models (LLMs) and Retrieval-Augmented Generation (RAG) pipelines
• Build and deploy microservices architecture using Kafka, Redis, Docker, etc.
• Manage application state using Redux or Redux Toolkit
• Write test cases using Mocha, Chai, Jest, or similar frameworks
• Participate in system design, architecture discussions, and scalability planning
• Follow Agile practices, perform code reviews, and contribute to CI/CD pipelines
• Collaborate with cross-functional teams including UI/UX, DevOps, QA, and Product Management

Required Skills & Experience

• Minimum 4 years of hands-on experience with the MERN stack
• Strong proficiency in TypeScript, React.js, Node.js, and Redux
• Proven experience in building and consuming REST APIs and webhooks
• Deep knowledge of responsive UI/UX development
• Hands-on experience with mobile-first API design and integrations
• Strong knowledge of PostgreSQL, MySQL, and MongoDB
• Experience with Kafka, Redis, Docker, and microservices
• Exposure to LLM, GPT, RAG, or similar AI models
• Solid understanding of software architecture and ability to build systems from the ground up
• Working knowledge of API security, JWT, OAuth, and rate-limiting
• Familiar with test-driven development and QA practices
• Familiarity with Git, version control, and collaborative workflows good to Have
• Experience with GraphQL and gRPC
• Experience in building SaaS or AI-integrated platforms
• Familiarity with ElasticSearch or RabbitMQ
• Experience with AWS, GCP, or Azure
• Understanding of serverless and event-driven architectures
• 
  

Benefits

• Competitive compensation with performance-based hikes
• Flexible remote or hybrid work options
• Opportunity to work on cutting-edge technologies including AI and scalable SaaS platforms
• Strong leadership and learning-driven environment
• Learning budget for courses, certifications, and conferences

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.

Key Responsibilities

🖥️ Frontend (Angular)

• Develop responsive, accessible web UI for assessment tools, educator dashboards, and parent reports.
• Implement dynamic form builders and scoring interfaces for multiple domains (reading, writing, math).
• Build PDF report previews, filtering tools, and real-time updates.

🔙 Backend (Python/FastAPI)

• Design and implement APIs for user management, assessments, intervention logs, and reports.
• Integrate scoring logic and data aggregation for AI insights.
• Implement secure role-based access (admin, educator, parent).

🛠️ DevOps / Systems

• Maintain scalable architecture with PostgreSQL / MongoDB, Docker, and deployment pipelines.
• Work with AI engineer to connect ML models to backend for prediction and recommendation layers.
• Optimize performance and ensure data security (GDPR-aligned).

Exp : 3+ years

Job Description:

We are looking for a highly skilled full stack developer who is comfortable with both front and back-end programming. The person would be responsible for developing and designing front end web architecture, ensuring the responsiveness of applications, and working alongside backend developers for application’s features/ functionalities. The person would be required to see out a project from conception to final product, requiring good organizational skills and attention to detail.

Skillsets required:

•  Hands on experience in development using Angular/React, Node JS & Python or Django framework
• Should have experience in any Database and working knowledge on any major Cloud like AWS or Azure
• Must have Web Services/ API knowledge
• Exposure to Docker, Kubernetes and defining CI/CD pipeline for deployment of a project is an added advantage
• Knowledge of multiple front-end languages and libraries (e.g., HTML/ CSS, JavaScript, XML, jQuery) will be preferred
• Must be experienced in client interaction & mentoring the team.

Responsibilities:

•  Work with development teams and product managers to ideate software solutions
•  Design client-side and server-side architecture
•  Build the front-end of applications through appealing visual design
• Develop and manage well-functioning databases and applications
• Write effective APIs
• Check the platform to ensure responsiveness and efficiency
• Troubleshoot, debug, and upgrade the platform
•  Create security and data protection settings
• Work with the analysts to improve the platform

We are looking for a blockchain developer who will be responsible for designing, implementing, and supporting a distributed blockchain-based network. Your primary responsibility will be analyzing requirements, designing blockchain technology around a certain business model, and building and launching a blockchain network.

Also, the Position requires maintenance & further development of the existing platform

• Research, design, develop, and test blockchain technologies
• Document new solutions as well as maintain of existing ones
• Be involved in the global blockchain community—work on implementing and integrating the latest improvement proposals

1. Requirements

• Hands-on experience in Ethereum, Solidity, Golang, Nodejs, Javascript, NFT, ERC Tokens, DeFi, DAPPS
• Strong software development background, Expertise in Rest API design and development.
• Experience working in NoSQL databases like MongoDB.
• Strong knowledge of common algorithms and data structures
• Proficient understanding of code versioning tools, such as Git, and familiar with concepts of Cloud-based microservices.

Must have worked with Blockchain products and played a vital role to build that application as a developer

• Deep knowledge in one or more domains of the study required for the function.
• Capability to write clear and structured technical documents.
• Ability to participate in multi-lingual meetings, very good communication skills, and able to work in a team.
• The capability of working in an international/multicultural environment.
• Ability to apply high quality standard

• Good experience in Angular.
• Good experience & knowledge of latest trends in Java, J2EE, Spring framework, Oracle, SQL, HTML, XML, XSD.
• Good knowledge of web services (SOAP, REST).
• Good knowledge of Cloud Technologies and Micro Services is an asset
• Experience with the following tools/ frameworks: Maven, GIT
• Experience in PKI is an asset

• The methodology is Agile
• Reporting tools are JIRA and Confluence

• Provision of expert advice and assistance, technology watch, architectural considerations, applicable standards, solution patterns, and best practices in Angular,
• J2EE, Web services, and SSL/TLS technologies
• Providing solution options
• Development of applications (full stack) using the technologies/tools mentioned in the specific expertise
• Review of Information Systems Infrastructure Architectures
• Performing PoC in the requested technologies
• Participation in user, service, and project meetings
• Create / update documentation as part of knowledge management
• Strive for innovation and open to new trends