Java FS with React

We're looking for an experienced Full-Stack Engineer who can architect and build AI-powered agent systems from the ground up. You'll work across the entire stack—from designing scalable backend services and LLM orchestration pipelines to creating frontend interfaces for agent interactions through widgets, bots, plugins, and browser extensions.

You should be fluent in modern backend technologies, AI/LLM integration patterns, and frontend development, with strong systems design thinking and the ability to navigate the complexities of building reliable AI applications.

Note: This is an on-site, 6-day-a-week role. We are in a critical product development phase where sthe peed of iteration directly determines market success. At this early stage, speed of execution and clarity of thought are our strongest moats, and we are doubling down on both as we build through our 0→1 journey.

WHAT YOU BRING:

You take ownership of complex technical challenges end to end, from system architecture to deployment, and thrive in a lean team where every person is a builder. You maintain a strong bias for action, moving quickly to prototype and validate AI agent capabilities while building production-grade systems. You consistently deliver reliable, scalable solutions that leverage AI effectively — whether it's designing robust prompt chains, implementing RAG systems, building conversational interfaces, or creating seamless browser extensions.

You earn trust through technical depth, reliable execution, and the ability to bridge AI capabilities with practical business needs. Above all, you are obsessed with building intelligent systems that actually work. You think deeply about system reliability, performance, cost optimization, and you're motivated by creating AI experiences that deliver real value to our enterprise customers.

WHAT YOU WILL DO:

Your primary responsibility (95% of your time) will be designing and building AI agent systems across the full stack. Specifically, you will:

• Architect and implement scalable backend services for AI agent orchestration, including LLM integration, prompt management, context handling, and conversation state management.
• Design and build robust AI pipelines — implementing RAG systems, agent workflows, tool calling, and chain-of-thought reasoning patterns.
• Develop frontend interfaces for AI interactions including embeddable widgets, Chrome extensions, chat interfaces, and integration plugins for third-party platforms.
• Optimize LLM operations — managing token usage, implementing caching strategies, handling rate limits, and building evaluation frameworks for agent performance.
• Build observability and monitoring systems for AI agents, including prompt versioning, conversation analytics, and quality assurance pipelines.
• Collaborate on system design decisions around AI infrastructure, model selection, vector databases, and real-time agent capabilities.
• Stay current with AI/LLM developments and pragmatically adopt new techniques (function calling, multi-agent systems, advanced prompting strategies) where they add value.

BASIC QUALIFICATIONS:

• 4–6 years of full-stack development experience, with at least 1 year working with LLMs and AI systems.
• Strong backend engineering skills: proficiency in Node.js, Python, or similar; experience with API design, database systems, and distributed architectures.
• Hands-on AI/LLM experience: prompt engineering, working with OpenAI/Anthropic/Google APIs, implementing RAG, managing context windows, and optimizing for latency/cost.
• Frontend development capabilities: JavaScript/TypeScript, React or Vue, browser extension development, and building embeddable widgets.
• Systems design thinking: ability to architect scalable, fault-tolerant systems that handle the unique challenges of AI applications (non-determinism, latency, cost).
• Experience with AI operations: prompt versioning, A/B testing for prompts, monitoring agent behavior, and implementing guardrails.
• Understanding of vector databases, embedding models, and semantic search implementations.
• Comfortable working in fast-moving, startup-style environments with high ownership.

PREFERRED QUALIFICATIONS:

• Experience with advanced LLM techniques: fine-tuning, function calling, agent frameworks (LangChain, LlamaIndex, AutoGPT patterns).
• Familiarity with ML ops tools and practices for production AI systems.
• Prior work on conversational AI, chatbots, or virtual assistants at scale.
• Experience with real-time systems, WebSockets, and streaming responses.
• Knowledge of browser automation, web scraping, or RPA technologies.
• Experience with multi-tenant SaaS architectures and enterprise security requirements.
• Contributions to open-source AI/LLM projects or published work in the field.

WHAT WE OFFER:

• Competitive salary + meaningful equity.
• High ownership and the opportunity to shape product direction.
• Direct impact on cutting-edge AI product development.
• A collaborative team that values clarity, autonomy, and velocity.

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 Description:

• Bachelor’s or Master’s degree in Computer Science, Engineering, or a related field.
• 7+ years of experience in backend development, with proficiency in Python and/or Golang.
• Strong experience in front-end technologies, particularly React.
• Familiarity with cloud platforms (AWS, GCP, or Azure) and containerization tools like Docker and Kubernetes.
• Knowledge of Apache Spark is highly preferred.
• Solid understanding of database technologies, both relational (e.g., PostgreSQL, MySQL) and NoSQL (e.g., MongoDB, Cassandra).
• Experience with CI/CD pipelines and automated testing frameworks.
• Excellent problem-solving skills and a proactive attitude toward tackling challenges

Join the team of a fast-growing fintech organization that has recently raised $25M via equity and debt fund to rapidly increase the ever-growing space of Fintech World.

A financial technology platform made up of the most knowledgeable, passionate, and creative people in our business. We recognize the power of financial services to break down barriers and make it easy for customers to avail banking, investments, and lending solutions – that responsibility inspires us to be the place where exceptional people want to do their best work and to provide them the tools to do so.

Looking for motivated, highly driven, and hardworking Software Engineers for the Neobanking platform for a leading Fintech organization in a highly collaborative, fast-paced, high-energy environment. You will build the platform for user onboarding, profile management, banking, lending, risk mitigation, and analytics for driving intelligence from customer interaction patterns. It’s an exciting time to join the team as we’re setting about building the next generation of our platform.

• Design and implement scalable server-side solutions using Java.
• Write optimized front-end code using HTML, CSS, and Javascript
• Write unit, automation, and integration tests
• Implement quality application logging for operational monitoring at scale
• Investigate, debug and resolve production site issues
• Work with co-located teammates to deliver on common goals

• Professional experience in enterprise Java software development using Spring MVC frameworks, RESTful APIs, and SOA
• Proficiency in HTML/CSS/JavaScript/jQuery
• Experience with Docker and Kubernetes
• Experience with Microservices
• Experience with DevOps Technologies is plus
• Experience with Selenium for UI automated tests written in Cucumber or Scala
• Working knowledge of design patterns and CI/CD principles
• First-class communication skills in written and verbal form
• Outstanding problem-solving skills
• A commitment to producing high-quality code with an attention to detail
• Dedication and a self-motivated desire to learn
• A collaborative, team-orientated attitude
• 3-8 years of professional experience in Java software development
• Experience working in the Cloud (AWS)
• API development experience
• Exposure to monitoring tools such as ELK, Splunk

SSE/TL/ STL – Java Full Stack Dev

Overview of the Role –SSE/TL/ STL– Java Full Stack Dev (Java + React js)

Location: Chennai / Hyderabad

Reporting To: Project Manager

Role Description

We are looking for a candidate with Java backend experience combined with UI exposure preferably with React JS. The candidate shall be required to member of a SW Development team, demonstrating technical person. The candidate would be required to demonstrate high degree of ownership; velocity and mentor the team members.

Responsibilities

• · In this role, you should be able to work independently with little supervision.
• · You should have excellent organization and problem-solving skills.
• · If you also have hands-on experience in software development and agile methodologies, we’d like to meet you.
• · You will be responsible to develop high-quality software that is aligned with user needs and business goals.

Qualification

• · 4 to 10 years of end-to-end development using Java & UI technology (ReactJS)
• · Good knowledge of any relational database
• · Experience in JavaScript along with an OOP language
• · Well versed with testing concepts and methodologies
• · Agile/Scrum development and full SDLC from development to production deployment.
• · Analytical mind with problem-solving aptitude.
• · Ability to work independently.
• · Excellent written and oral communication skills.

• Bachelor's degree in computer science or equivalent experience
• 2+ years of experience in software engineering.
• Experience with building B2B and consumer quality products, enabling business capability and objectives through technology.
• Strong cloud infrastructure experience with AWS.
• Experience in engineering practices such as code refactoring, design patterns, design driven development, continuous integration, building highly scalable applications and application security.
• Experience working with a development team using Agile methodology.
• Experience in container technologies like Docker/Kubernetes a plus.
• Hands-on skills working with SQL and No-SQL databases
  Broad experience across the following application development technologies and in depth skills with at least one: NodeJS, React, GraphQL,Python, R, Java/C++ and/or other open source application development frameworks.
• Ability to strategically balance test coverage, documentation and timelines (API/ Unit testing).
• Strong analytical and problem-solving skills paired with the ability to develop creative and efficient solutions.
• Able to work under competing priorities, manage expectations effectively and support the team under pressure; distinct user focus and quality mindset.

What are we looking for:

● Good problem solving skills.

● Strong knowledge of CS fundamentals, data structures.

● Experience working in software development with one or more of the following programming languages: Java, Go, Scala, Python, C/C++.

● Strong understanding of relational and non-relational databases (MySql, Postgresql, MongoDB, Cassandra).

● Experience in working with distributed caching (Memcached, Redis, or comparable technology).

Experience in working with distributed messaging technologies like RabbitMQ, Kafka etc.

● Ability to design and implement low latency RESTful services.

● Experience with microservices and web application/services development. 

- Work with development teams and UI/UX designers 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.

- Test software to ensure responsiveness and efficiency.

- Troubleshoot, debug and upgrade software.

- Create security and data protection settings.

- Build features and applications with a mobile responsive design.

- Write technical documentation.

- Excellent verbal communication skills.

- Good problem-solving and logical skills.

Desired Profile:

Experience with web technologies including HTML, CSS, JS, AJAX, Bootstrap, Jquery etc.

- Experience in Web Application Development using PHP/MySQL.

- Knowledge of object-oriented PHP programming.

- Understanding of MySQL databases and their declarative query languages.

-  Responsible for handling a projects using MVC framework CodeIgniter/Laravel.

- Design interchange of data between the server and the client using RESTful/GraphQL.
- Understanding accessibility and security compliance.

- Build efficient, testable & reusable PHP modules in latest version.

- Should have basic knowledge in Scrum and Git.

Our software developer for full stack role would be required to constantly work on building new features as per discussion with the product team.

Our front end code base is in Angular while the backend code base is in Python-Django.

Pre-requisites

• Expert level knowledge of Angular and Javascript
• Intermediate level knowledge of Python

Responsibilities

• Build new products / features from scratch
• Work on implementing and maintaing ticket booking flow on site
• Work on making existing features faster and better
• Work on reducing response time for all our apis

Qualifications & Skills

• Bachelor's degree or equivalent experience
• 1-6 years' experience in full stack development
• Hands-on with angular, python, django, mysql, mongodb, redis, rest-framework
• Ability to multi-task
• Strong verbal, written, and organizational skills
• Good analytical capabilities
• Mobile ecosystem knowledge

Full Stack Developer for a leading E-Commerce MNC
Job Responsibilities :

- Developing new user-facing features using React.js. 

- Building reusable components and front-end libraries for future use. 

- Translating designs and wireframes into high-quality code. Skills 

- Strong proficiency in JavaScript, ES6 and it's newer specifications 

- Thorough understanding of React.js and its core principles 

- Experience with popular React.js workflows (such as Redux) 

- Familiarity with RESTful APIs

- Experience working with preprocessing stylesheet language (LESS)

- Experience with common front-end development tools such as NPM, etc.

- Familiarity with GIT version control system. 

- Ability to understand business requirements and translate them into technical requirements