React Native Developer

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.

JOB TITLE: Associate Full Stack Developer (SDE-2)

LOCATION: Remote/Hybrid.

 Associate Full Stack Developer (SDE-2)

A LITTLE BIT ABOUT THE ROLE:

As a Full Stack Developer, you will be responsible for developing digital systems that deliver optimal end-to-end solutions to our business needs. The work will cover all aspects of software delivery, including working with staff, vendors, and outsourced contributors to build, release and maintain the product.

Fountane operates a scrum-based Agile delivery cycle, and you will be working within this. You will work with product owners, user experience, test, infrastructure, and operations professionals to build the most effective solutions.

WHAT YOU WILL BE DOING:

• Full-stack development on a multinational team on various products across different technologies and industries.
• Optimize the development process and identify continuing improvements.
• Monitor technology landscape, assess and introduce new technology. Own and communicate development processes and standards.
• The job title does not define or limit your duties, and you may be required to carry out other work within your abilities from time to time at our request. We reserve the right to introduce changes in line with technological developments which may impact your job duties or methods of working.

WHAT YOU WILL NEED TO BE GREAT IN THIS ROLE:

• Minimum of 2+ years of full-stack development, combined back and front-end experience building fast, reliable web and/or mobile applications.
• Experience with Web frameworks (e.g., React, Angular or Vue) and/or mobile development (e.g., Native, Native Script, React)
• Proficient in at least one JavaScript framework such as React, NodeJs, AngularJS (2. x), or jQuery.
• Ability to optimize product development by leveraging software development processes.
• Bachelor's degree or equivalent (minimum six years) of work experience. If you have an Associate’s Degree must have a minimum of 4 years of work experience.
• Fountane's current technology stack driving our digital products includes React.js, Node.js, React Native, Angular, Firebase, Bootstrap, MongoDB, Express, Hasura, GraphQl, Amazon Web Services(AWS), and Google Cloud Platform.

SOFT SKILLS:

• Collaboration - Ability to work in teams across the world
• Adaptability - situations are unexpected, and you need to be quick to adapt
• Open-mindedness - Expect to see things outside the ordinary

LIFE AT FOUNTANE:

• Fountane offers an environment where all members are supported, challenged, recognized & given opportunities to grow to their fullest potential.
• Competitive pay
• Health insurance
• Individual/team bonuses
• Employee stock ownership plan
• Fun/challenging variety of projects/industries
• Flexible workplace policy - remote/physical
• Flat organization - no micromanagement
• Individual contribution - set your deadlines
• Above all - culture that helps you grow exponentially.

Qualifications - No bachelor's degree required. Good communication skills are a must!

A LITTLE BIT ABOUT THE COMPANY:

Established in 2017, Fountane Inc is a Ventures Lab incubating and investing in new competitive technology businesses from scratch. Thus far, we’ve created half a dozen multi-million valuation companies in the US and a handful of sister ventures for large corporations, including Target, US Ventures, and Imprint Engine.

We’re a team of 80 strong from around the world that are radically open-minded and believes in excellence, respecting one

We are building an advanced, AI-driven multi-agent software system designed to revolutionize task automation and code generation. This is a futuristic AI platform capable of:

✅ Real-time self-coding based on tasks  

✅ Autonomous multi-agent collaboration  

✅ AI-powered decision-making  

✅ Cross-platform compatibility (Desktop, Web, Mobile)  

We are hiring a highly skilled **AI Engineer & Full-Stack Developer** based in India, with a strong background in AI/ML, multi-agent architecture, and scalable, production-grade software development.

### Responsibilities:

- Build and maintain a multi-agent AI system (AutoGPT, BabyAGI, MetaGPT concepts)  

- Integrate large language models (GPT-4o, Claude, open-source LLMs)  

- Develop full-stack components (Backend: Python, FastAPI/Flask, Frontend: React/Next.js)  

- Work on real-time task execution pipelines  

- Build cross-platform apps using Electron or Flutter  

- Implement Redis, Vector databases, scalable APIs  

- Guide the architecture of autonomous, self-coding AI systems  

### Must-Have Skills:

- Python (advanced, AI applications)  

- AI/ML experience, including multi-agent orchestration  

- LLM integration knowledge  

- Full-stack development: React or Next.js  

- Redis, Vector Databases (e.g., Pinecone, FAISS)  

- Real-time applications (websockets, event-driven)  

- Cloud deployment (AWS, GCP)  

### Good to Have:

- Experience with code-generation AI models (Codex, GPT-4o coding abilities)  

- Microservices and secure system design  

- Knowledge of AI for workflow automation and productivity tools  

Join us to work on cutting-edge AI technology that builds the future of autonomous software.

Role Overview

We are looking for an enthusiastic Full Stack Developer with 1–2 years of hands-on experience in building web applications using GoLang for backend services and React.js for frontend development. The ideal candidate should have strong fundamentals, an eagerness to learn, and the ability to thrive in a fast-paced engineering environment.

Key Responsibilities

• Develop, maintain, and optimize backend services using GoLang
• Build responsive, user-friendly web interfaces using React.js
• Work on API design, integration, and performance optimization
• Collaborate closely with product managers, designers, and other engineers
• Participate in code reviews, debugging, and troubleshooting
• Write clean, maintainable, and well-documented code following best practices
• Contribute to improving application performance, scalability, and user experience

Primary Skills (Must Have)

• GoLang backend development
• Java or C++ experience and willingness to learn GoLang
• React.js frontend development
• Strong understanding of REST APIs
• JavaScript and TypeScript fundamentals
• HTML5 and CSS3 fundamentals
• Familiarity with version control systems (Git)

Secondary Skills (Nice to Have)

• Exposure to cloud platforms (AWS, Azure, or GCP)
• Basic understanding of SQL or NoSQL databases
• Experience with build tools and package managers (Webpack, npm, yarn)
• Knowledge of Docker or containerization concepts
• Understanding of CI/CD pipelines
• Basic knowledge of UI/UX best practices

Soft Skills

• Strong problem-solving mindset
• Good communication and collaboration skills
• Ability to take ownership of assigned tasks
• Eagerness to learn and adapt to new technologies

Education

• Bachelor’s degree in Computer Science, Engineering, IT, or a related field

Why Join Oneture?

• Work on real-world digital engineering projects
• Learning-driven culture with strong mentorship
• Exposure to full-stack development using modern tools and frameworks
• Collaborative, growth-oriented work environment

We are looking for a highly skilled Senior Fullstack Engineer with deep experience across frontend, backend, cloud, and database systems. You will work closely with Engineering, Product, and cross-functional teams to build scalable, secure, and high-performance solutions. This role involves strong technical leadership, mentoring, and driving best practices across the organisation.

Responsibilities

• Technical Ownership: Architect and design complex, scalable full-stack solutions across systems and teams.
• Hands-on Development: Write clean, maintainable React (frontend) and Node.js (backend) code.
• Cross-Functional Collaboration: Partner with Product, Design, QA, and DevOps to deliver business value.
• Code & Design Reviews: Define and enforce coding standards, guide system design discussions.
• Scalability & Performance: Optimise services and UIs for speed, efficiency, and scalability.
• Mentorship: Coach senior/staff engineers and engineering leads; drive engineering best practices.
• Tech Strategy: Shape long-term technology vision; evaluate tools/frameworks; mitigate architectural risks.
• DevOps & CI/CD: Collaborate on automation, pipelines, and observability practices.
• Security & Compliance: Ensure outputs meet security and compliance standards (GLBA, GDPR, CCPA).

Qualifications

• Bachelor’s/Master’s in Computer Science, Engineering, or related field.
• 12+ years of software engineering experience, including 7+ years in full-stack development.
• Deep expertise in React, Node.js, and TypeScript.
• Proven experience architecting complex systems and influencing tech direction at scale.
• Strong understanding of data structures, system design, API design, and microservices.
• Experience with cloud-native systems, containers, and DevOps workflows.
• Excellent communication, mentoring, and leadership-by-influence skills.

Tech Stack

• Frontend: React, Redux/Context API, TypeScript, Tailwind/CSS-in-JS
• Backend: Node.js, Express/Nest.js, TypeScript
• API: REST, GraphQL
• Database: PostgreSQL, MongoDB, Redis
• Infra/DevOps: Docker, Kubernetes, GitHub Actions, AWS/GCP
• Testing: Jest, Cypress, React Testing Library, Supertest

Leadership & Team Expectations

• Experience mentoring and coaching developers.
• Strong track record of delivering complex projects.
• Ability to perform thorough code reviews.
• Skilled with agile methodologies (Scrum, Kanban).
• Strong project and timeline management capability.
• Excellent verbal and written communication skills.

Additional Skills

• Ability to explain technical concepts to non-technical stakeholders.
• Strong analytical and problem-solving skills.
• Ability to troubleshoot complex technical issues.
• Experience working with Product, Design, and QA.
• Ability to quickly learn and adapt to new technologies.

Perks

• Day off on the 3rd Friday of every month (one long weekend each month)
• Monthly Wellness Reimbursement Program
• Monthly Office Commutation Reimbursement
• Paid paternity leave

As a Full Stack Developer; you should be comfortable around both front-end and back-end coding languages, development frameworks, and third-party libraries. You should also be a team player with a knack for visual design and utility.

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.
• 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.

Requirements:

• Backend: Spring (JAVA), Spring Boot, Laravel (PHP), MySQL, NoSQL, NGINXPlus.
• Frontend: Angular 5+ Ngrx/store5
• Infrastructure: Google cloud platform (App Engine, CloudSQL, BigQuery, PubSub, Firebase Hosting), Pusher.io (WebSockets), Filestack, Postmark app, 4 Tools: Postman app, JIRA.
• Rest APIs, Microservices, Agile, Oauth, Message Queue, Git.
• 6 years proven experience as a Full Stack Developer or similar role.
• Experience working with service-oriented architectures and web-based solutions.
• Familiarity with common stacks.
• Knowledge of multiple front-end languages and libraries (e. g. HTML/ CSS, JavaScript, XML, jQuery).
• Knowledge of multiple back-end languages (e. g. C#, Java, Python) and JavaScript frameworks (e. g. Angular, React, Node.js ).
• Familiarity with databases (e. g. MySQL, MongoDB), web servers (e. g. Apache) and UI/UX design.
• Experience working on Agile processes (Scrum, Kanban).
• Experience working on the AWS technologies.
• Excellent communication and teamwork skills.
• Great attention to detail.
• Organizational skills.
• An analytical mind.
• Degree in B. tech/BE.

Job descriptions

Team Lead Full stack developer

Born at MIT, GeniusMesh is an executive networking, career coaching and recruitment platform. We are building our offshore team to support our growth. The lead full stack developer has a range of responsibilities from shaping and implementing strategic products to ensuring that we stay on the leading edge of technology. Responsible to contribute across the technology stack, from database and DevOps infrastructure that supports continuous deployment, to application development.

•  
• Designs the overall technical architecture of the product
• Mentors and coaches the technical team, specifically with pair programming and code reviews
• Engages in coding to help the team to develop the solution and solve all surfacing problems at hand. Identifies and removes technical impediments
• Provides technical training and guidance to other developers
• Works with product owner to align the roadmap with strengths and opportunities with the technical stack
• Constantly looks for improvement in solving technical problems and designing the solutions, not afraid to discuss with passion resolutions
• Provides the team with a roadmap for implementing agile software engineering practices for higher code quality
• Shares responsibility with Product Owners for building reusable and scalable components

• Master's Degree in Information Technology, Computer Science, or a related discipline or graduate from a top school
• Minimum 6+ years of software development experience
• Seen as an expert within the technical components of the domains/products/journeys
• Can make architecture decisions at a team and product level
• Experience working on projects that span multiple organizations and business units
• Experience in building and scaling SaaS solutions
• Agile Development experience (XP, Continuous Integration, Continuous Delivery), with Solution Architect experience
• Strong communication experience with the ability to assist in aligning organization on complex technical decisions
• Must be a creative thinker and can recognize and solve problems by thinking outside the box
• Required Technical Experience: React, JavaScript, CSS, Nodes.js, RESTFUL APIs, GitHub, HTML
• Preferred Technical Experience: TDD, Jira, AWS (Elastic Beanstalk), Python, Express.js, BDD
• Ability to write quality unit tests and integration tests
• Understanding of repeatable automated processes for building the application, testing it, documenting it, and deploying it at scale
• An awareness of security concerns is very important, as each layer presents its possible vulnerabilities
• Willing to get hands dirty in various tools and technologies
• Must have entrepreneurial mindset, willing to roll up the sleeve to make things happen
• Must be willing to work in a fast paced environment.

• Architect, design and build complex, highly scalable, high performance enterprise applications
• Lead, mentor and work with a team of engineers to deliver on clients application expectations
• Work with clients engineering needs and deliver on requirements in a team environment
• Accelerate development velocity for all engineers and deliver continuous improvements to the teams process and codebase
• Build automation to prevent and/or remediate service problems from becoming production incidents