
Senior Full Stack Developer (Electron + AI Platform)
Job Title: Founding Engineer / Senior Full Stack Developer (Electron + AI Platform)
Location: Mumbai
Type: Full-time
Compensation: ₹17–20 LPA + 0.4% Equity (ESOP Pool)
Role Overview
We’re hiring a Founding Engineer / Senior Full Stack Developer to help us build an advanced desktop application designed for secure, intelligent, and autonomous workflows. You’ll be one of the first engineering hires and play a critical role in owning the entire product engineering stack—from interface to system orchestration.
This is a high-ownership role for someone who thrives in early-stage environments, enjoys building performance-focused desktop systems, and wants to work at the cutting edge of AI-enabled automation.
What You’ll Work On
- Architect and build a high-performance Electron-based desktop application
- Develop intelligent frontend workflows using React 18, TailwindCSS, and TypeScript
- Build scalable backend services in Node.js 20 with support for secure tool orchestration
- Integrate with external systems like CLI tools, terminal processes, file systems, and MCP-like interfaces
- Build efficient local storage, memory, and prompt-pipeline management systems
- Work on token and session lifecycle, agent command execution, and sandboxed operations
- Ship cross-platform (Windows & macOS) builds using Electron and Vite pipelines
Tech Stack
You should already be comfortable with most of the following:
- Frontend: React 18, Tailwind CSS, TypeScript, Vite
- Backend: Node.js 20, Express.js, CLI process spawning, OS-level scripting
- Desktop: Electron 25, IPC communication, Electron Forge/Builder, native packaging
- AI/Agent Integration: REST APIs to LLMs (Claude, GPT, etc.), prompt engineering, token/tokenizer management
- System-Level: File system manipulation, workspace persistence, multi-threaded job handling
- Tool Control & Integration: Interfacing with command-line tools (MCP-like integrations), automated I/O
- Other: GitHub Actions, secure storage, error logging, telemetry pipelines
What We’re Looking For
- 4+ years of full stack development experience with real-world Electron app delivery
- Strong proficiency in JavaScript/TypeScript (ES6+), including bundling and module systems
- Production-level experience with React and managing state in large apps
- Deep understanding of backend architecture, async task management, and secure file handling
- Ability to work independently in a fast-paced early-stage environment
- Comfortable with cross-platform builds (Windows & macOS)
- Bonus: Experience with embedded AI assistants, autonomous agent frameworks, or toolchain orchestration
What We Offer
- Competitive salary: ₹17–20 LPA
- 0.4% equity via ESOP pool (with early joining incentives)
- High autonomy and strategic influence—work as a true co-creator
- Remote-friendly and async collaboration culture
- Opportunity to build a developer-first product from scratch with real AI depth

About Fenrir Security Private Limited
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Must-Have:
- 5+ years React/Next.js experience
- 2+ years TypeScript
- AI API integration experience
- Supabase or similar BaaS platform
- PostgreSQL proficiency
Red Flags:
- No TypeScript experience
- Only frontend or only backend experience
- No AI/LLM integration background
- Unfamiliar with modern React patterns (Server Components, App Router)
Joining: Immediate

About the Job
This is a full-time role for a Senior Fullstack Engineer at Spark Eighteen. We are seeking an experienced and influential developer to lead the design, architecture, and implementation of cutting-edge, end-to-end solutions. This role requires a deep expertise in both frontend (React) and backend (Node.js) technologies, along with the ability to provide strong technical leadership and drive innovation across the full technology stack. The job location is for the Saket office in Delhi NCR.
Responsibilities
- Lead the development of major features and complex project components across the full stack, ensuring high-quality, scalable, and secure delivery.
- Design and architect efficient, maintainable solutions for both client-side and server-side systems.
- Provide technical leadership and mentorship to junior and mid-level developers, fostering a culture of engineering excellence.
- Drive the adoption of new technologies and best practices to enhance application performance, security, and reliability.
- Collaborate closely with product managers, designers, and other engineers to translate business requirements into robust technical solutions.
- Conduct architectural reviews, make strategic technical decisions, and implement risk mitigation strategies for technical challenges.
- Champion code quality initiatives and enforce coding standards across the team.
Requirements
Technical Skills
- 3+ years of professional experience in software development with a strong fullstack background.
- Mastery of HTML5, CSS3, and advanced JavaScript (ES6+), including asynchronous programming.
- Strong proficiency in React or Next.js, with deep experience in state management libraries like Redux or Context API.
- Proven experience with modern frontend build tools (e.g., Webpack, Babel) and testing frameworks (e.g., Jest, Cypress).
- Deep professional experience in Node.js and TypeScript, including advanced patterns and debugging techniques.
- Strong understanding of API security (JWT, OAuth), caching strategies (Redis/Memcached), and data encryption.
- Proficiency with cloud providers (AWS, GCP, Azure), serverless frameworks, and cloud databases (e.g., DynamoDB).
- Thorough understanding of security best practices across the full stack (e.g., XSS, CSRF, TLS/SSL).
- Proficiency with advanced Git workflows, CI/CD pipelines, and collaborative development processes.
Soft Skills
- Excellent cross-functional communication skills, with the ability to articulate complex technical concepts clearly.
- Proven technical leadership and a passion for mentoring and elevating the skills of team members.
- Strategic thinker with robust analytical, problem-solving, and risk assessment capabilities.
- Strong ability to align technical initiatives with broader business strategy.
- A collaborative approach and a commitment to continuous learning and technical excellence.
What We Offer
- Professional Growth: Continuous learning opportunities through diverse projects and mentorship from experienced leaders.
- Global Exposure: Work with clients from 20+ countries, gaining insights into different markets and business cultures.
- Impactful Work: Contribute to projects that make a real difference, with solutions generating over $1B in revenue.
- Work-Life Balance: Flexible arrangements that respect personal wellbeing while fostering productivity.
- Career Advancement: Clear progression pathways as you develop skills within our growing organization.
- Competitive Compensation: Attractive salary packages that recognize your contributions and expertise.
Our Culture
At Spark Eighteen, our culture centers on innovation, excellence, and growth. We believe in:
- Quality-First: Delivering excellence rather than just quick solutions.
- True Partnership: Building relationships based on trust and mutual respect.
- Communication: Prioritizing clear, effective communication across teams.
- Innovation: Encouraging curiosity and creative approaches to problem-solving.
- Continuous Learning: Supporting professional development at all levels.
- Collaboration: Combining diverse perspectives to achieve shared goals.
- Impact: Measuring success by the value we create for clients and users.
Apply Here - https://tinyurl.com/mr46nanf
Interested candidates are requested to email their resumes with the subject line "Application for [Job Title]".
Only applications received via email will be reviewed. Applications through other channels will not be considered.
Overview
Adesso India specialises in optimization of core business processes for organizations. Our focus is on providing state-of-the-art solutions that streamline operations and elevate productivity to new heights.
Comprised of a team of industry experts and experienced technology professionals, we ensure that our software development and implementations are reliable, robust, and seamlessly integrated with the latest technologies. By leveraging our extensive knowledge and skills, we empower businesses to achieve their objectives efficiently and effectively.
Job description
As part of our dynamic international cross-functional team you will be responsible for the design, development and deployment of modern high quality software solutions and applications as an experienced and skilled Full-stack developer.
Responsibilities:
Design, develop, and maintain the application
Write clean, efficient, and reusable code
Implement new features and functionality based on business requirements
Participate in system and application architecture discussions
Create technical designs and specifications for new features or enhancements
Write and execute unit tests to ensure code quality
Debug and resolve technical issues and software defects
Conduct code reviews to ensure adherence to best practices
Identify and fix vulnerabilities to ensure application integrity
Working with other developers to ensure seamless integration backend and frontend elements
Collaborating with DevOps teams for deployment and scaling
Requirements:
Bachelor’s degree in computer science or information technology, or a related field.
Proven experience as a skilled Full-stack developer. Experience in Utilities / Energy domain is appreciated.
Strong experience with Java (Springboot), AWS / Azure or GCP, GitLab and Angular and / or React. Additional technologies like Python, Go, Kotlin, Rust or similar are welcome
Excellent problem-solving and debugging skills.
Strong communication and collaboration abilities to work effectively in a team environment.
Skills & Requirements
Java, Spring Boot, AWS, Azure, GCP, GitLab, Angular, React, Python, Go, Kotlin, Rust, Full-stack development, Software architecture, Unit testing, Debugging, Code reviews, DevOps collaboration, Microservices, Cloud computing, RESTful APIs, Frontend-backend integration, Problem-solving, Communication, Team collaboration, Software deployment, Application security, Technical documentation.

designing powerful new integrations to scaling our real-time web service to hundreds
of users
2. Build high-impact, end-user features that vastly improve user productivity.
3. In a small cross-functional team you will collaborate closely to discuss the feasibility
and direction of prototypes or planned product features.
4. Address complex problems at both an application and system-level, and maintain
existing codebases
5. Work directly with CTO to set the tone for the engineering culture and create
processes for improving engineering standards
This role is tailor-made for you if
1. You have a work experience of 3+ years as a full-stack engineer
2. You have hands-on experience with Node JS, React JS, React Hooks, Javascript,
TypeScript
3. Demonstrated fluency with REST APIs, third-party libraries, and client/server
architectures
4. You are passionate about great UX
5. You have experience with maintaining backend microservices
6. You are comfortable conducting code reviews and giving feedback to ensure high
standards of code maintainability and extensibility
7. You are energized by ambiguity and can create structure in a dynamic, fast-paced
environment
8. You’ve high confidence, low ego, and are generally a good human being :)
You earn brownie points if
1. You love Slack (we are a Slack first company)
2. You have been part of an early/mid-stage start-up before
3. You love TechCrunch. We are obsessed with reading and talking about startups
4. You have created some amazing open-source projects


Full Stack Developers at Seenit are passionate about using technology to create an impact on the world they live in. At Seenit, you will get to collaborate with an accomplished team that loves solving real-world problems. You will get to work on key initiatives and cutting edge projects that will bring in the next phase of growth for the global retail industry.
Seenit’s suite of apps enables the leading retailers around the world to transform their customer experience and build loyal relationships with their customers. The apps allow retailers to make use of their physical infrastructure and resources to deliver a truly omnichannel experience in today's rapidly changing world of shopping.
We would welcome someone to the team who:
- Loves to write “clean”, well designed code to solve complex problems
- Can design, develop and test the core product software and databases to ensure strong optimization and functionality
- Is inclined to contribute in all phases of the development lifecycle and takes end to end ownership of the project
- Follows best industry practices and develops and deploys new features to facilitate related procedures and tools
- Is excited to support others to succeed and shine in a collaborative team culture
Your application will require you to have:
- 4+ years experience in developing web-based applications in MVC architecture (CodeIgniter preferred)
- Good knowledge of MySQL and query optimisation
- Experience with PHP 7, HTML5, AJAX, JavaScript, JQuery, CSS, MVC frameworks (Codeigniter and Laravel), API
- Server Knowledge - AWS Preferred
- Managed a team and done code review
- Experience with Ubuntu OS is a plus point
You should work with us because:
- We’re a relaxed diverse group and don’t take ourselves too seriously
- We're creative and want to change the world while we're at it (yes we do!)
- Our products have an international audience and our partners are around the globe
- Team lunches are more frequent than team meetings
- We love to travel and will ask you to take time off to refresh

Looking for Senior and Lead Full stack Developer to join us and work with our global team of developers. We have team based out of Italy, Ukraine, USA and India.
Hammoq Inc is a rapidly growing startup in the reselling sector. Our app provides product listings, cross-platform data analytics, and Cross-platform delisting as our core services. Launched Web app in 2020 and iOS app at the start of 2021, we are continuing our exponential growth, and we were hoping you could play a core role in our mission. The hammoq is looking for a Fullstack Developer, an expert in Full stack web development, to join our passionate developers' team to create our SaaS web app.Our stack is: React + Mongo + Redux + Node + Express. The ideal candidate will be responsible for developing, testing, and debugging responsive web applications. What you'll do
• You'll use advanced but established technologies to build exciting new features
• You'll implement pixel-perfect designs with smooth animations and intuitive interactions
• You'll write high-quality code that is testable and easy to read
• You'll extend and implement our API services
• You'll inject your vision and insights into crucial product and user experience decisions
• You'll strive for excellent development practices and careful code architecture that is built around rapid releases
• You'll collaborate with our hardworking, nimble, and supportive team through daily standups, company presentations, product demos, slack discussions, Pull Requests, and post mortemsSkills and expertise that will help you succeed
• Experience in building React.js applications
• You have experience with integrating REST API services
• Experience using Scrum/Agile development methodologies
• You have experience working with different architectures
• Experience building SaaS web applications, websites
• Ability to work individually and learn new concepts with minimal guidance
• You have a good sense of usability and product
• You have experience with Git
• You have experience with MongoDB
• You have experience in Data Structures implementation.
Nice to have
• Experience in building automation testing
• Knowledge or basic understanding of any Cloud technologies.
• Experience in the e-commerce industry
Qualifications
• Comfort using programming languages and relational databases
• Strong debugging and troubleshooting skills
• 3+ years' of MERN Stack development experience
Job Type: Full-time
Employment Type
Full-time
This position is remote until covid, post covid it depends on Employee work performance and choice.

Full Stack Developers at The Seenit Co. are passionate about using technology to create an impact on the world they live in. At Seenit, you will get to collaborate with an accomplished team that loves solving real-world problems. You will get to work on cutting edge projects that will shape the next phase of growth for the global luxury industry.
Seenit’s suite of products enables the leading luxury retailers around the world to transform their customer experience and build loyal relationships with their customers. The apps allow retailers to make use of their existing infrastructure and resources to deliver a truly omnichannel experience in today's rapidly changing world of shopping.
We would welcome someone to the team who:
- Loves to write “clean”, well designed code to solve complex problems
- Can design, develop and test the core product software and databases to ensure strong optimization and functionality
- Is inclined to contribute in all phases of the development lifecycle and takes end to end ownership of the project
- Follows best industry practices
- Is excited to support others to succeed and shine in a collaborative team culture
Your application will require you to have:
- 4+ years experience building backend services for production web applications
- Experience in working with AGILE methodology
- Experience deploying softwares to cloud providers such as GCP, AWS
- Good knowledge of NoSQL databases, and query optimisations
- Experience with MongoDB, Express JS, React JS, Node JS, TypeScript
- Experience with caching implementation using Redis
- Experience with Elastic Search will be an added advantage.
- Previous exposure to leading a team of 3 or more full stack developers will be an added advantage
- MongoDB for database(NoSQL)
- React JS for web front end(TypeScript)
- Express JS and Node JS for web servers
- AWS is our cloud provider
- Redis for caching
You should work with us because:
- We’re a relaxed diverse group and don’t take ourselves too seriously
- We're creative and want to change the world while we're at it (yes we do!)
- Our products have an international audience and our partners are around the globe
- Team lunches are more frequent than team meetings
- We love to travel and will ask you to take time off to refresh



Your primary role will be to drive and grow our in-house software expertise. Working with a small software team in India and the UK, you will be responsible in understanding the requirements from various internal teams and taking ownership of software development, including backend database development and any front-end applications that will be developed in the future. Implementing AGILE methodologies, you will be responsible for delivering iterative results through regular sprints.
The software team manages a range of systems for the company, ranging from our client-facing applications to content delivery portals. You will be involved in all the projects and will contribute to developing, maintaining, and improving our systems. You will also be expected to keep on top of the latest developments in the software world and constantly check if we can make use of the latest technologies to deliver an even better user experience to both our internal and external clients. This role will suit someone who has extremely good technical skills but who is also ambitious to play a more strategic role in a growing company and build a strong team. The role may also require occasional travel to our UK headquarters and other offices around the world.
Essentials:
- Solid development skills and track-record of successful project delivery
- PHP and frameworks
- Database design and development
- SQL
- Open-source SQL databases, e.g. MySQL, MariaDB, PostgreSQL
- HTML
- CSS, Sass and frameworks
- JavaScript: ES5, ES6, Ajax, libraries, and frameworks like VueJs, ReactJs.
- Front-end tooling
- Accessibility and progressive enhancement
- Git and/or other version control systems
- Project management
- Excellent communication, leadership, and motivation skills
- Willing to take on new technical projects.
- Attention to detail.
Desirable skills and experience:
- Agile development experience or certification
- .Net Framework
- Data visualisation and tools
- js
- NoSQL technologies such as MongoDB
- Continuous integration and deployment
- Big data and analytics
- Web security and development practices
- Data scraping and parsing.
- Aptitude for statistical analysis
Responsibilities:
- Make changes in the existing code base of talent marketplace and implement new features.
- Collaborate with stakeholders that are involved in product design (marketing specialist and product manager).
- Report the progress to other stakeholders.
- Do bug fixes and push the source codes to the live server.
- Be responsive to change requests and feature requests
- Create Unit and Integration tests to ensure the quality of code
Requirements:
- Experience in Node js , MongoDB and Angular.
- Experience in JavaScript development.
- Understanding in MEAN or MERN Stack.
- Experience in the use of project planning tools (JIRA, Version One, GitHub, etc.)
- Excellent written and verbal communication skills (English).
- Understanding of various technologies including applications and databases.
- Able to handle multiple projects and competing deadlines
- Good understanding of overall web design including basic usability, accessibility, industry standards, architecture, and navigation
- Able to handle multiple projects and competing deadlines
- Fluent knowledge of latest HTML/CSS standards and best practices
- Experience building Responsive websites for web, tablet and mobile devices


We're looking for a Full Stack developer who will take a key role on our team. Our Full Stack developer must have knowledge in all stages of software development.
Requirements:
- Design overall architecture of the web application.
- Maintain quality and ensure responsiveness of applications.
- Collaborate with the rest of the engineering team to design and launch new features.
- Maintain code integrity and organisation.
- Experience working with graphic designers and converting designs to visual elements.
- Understanding and implementation of security and data protection.
- Highly experienced with back-end programming with NodeJS, you can easily design and integrate the REST APIs with front end.
- Well versed with JavaScript (frameworks such as ReactJS).
- Development experience for both mobile and desktop.
- Experience with cloud message APIs and usage of push notifications.
- Knowledge of code versioning tools such as Git.
- Knowledge about Firebase & GoLang is an added advantage.

