
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
About
Company social profiles
Similar jobs
We’re building the future of AI-powered sales enablement.
PitchSense AI is a flagship product within our portfolio of AI-driven Sales and Marketing solutions.
We blend conversational intelligence, generative AI, and behavioural analytics to help people master persuasion through real-time AI simulations.
Why PitchSense AI
Working here means joining a small, fast-moving team that lives at the frontier of applied AI.
You’ll:
- Build in a high-pace, high-learning environment where ideas ship fast.
- Tinker with cutting-edge AI tools, agents, and large language models (LLMs) daily.
- Prototype novel ways to combine speech, emotion, and reasoning into human-like training experiences.
- Learn across multiple domains — engineering, design, analytics, and product.
- Work directly with the founding team on problems no one has solved before.
This is not routine work — it’s an opportunity to shape entirely new experiences in human-AI interaction while growing faster than you ever have before.
Stack: Next.js · TypeScript · NestJS · Prisma · PostgreSQL · AWS · OpenAI · AISDK · AI Agents · RAG · ElevenLabs
Culture: Ownership · Velocity · Craftsmanship
SDE II
Location: Gurgaon
Experience: 2–4 years | Type: Full-time | Reports to: CTO
Responsibilities
- Architect and scale multi-tenant systems for AI training and analytics.
- Design clean APIs and optimise data models for speed and resilience.
- Mentor junior engineers and uphold engineering best practices.
- Enhance caching, monitoring, and infrastructure reliability on AWS.
- Integrate AI-based code reviews to maintain quality and velocity.
Requirements
- 2–4 years of full-stack or backend experience.
- Expertise in TypeScript, Node.js, PostgreSQL, React/Next.js.
- Comfortable owning modules from design to production.
Bonus
- Experience with AI model integration or speech intelligence.
- Exposure to Prisma ORM, CI/CD, and monitoring tools.
Developer Tools & Workflow
Every engineer and designer at PitchSense AI uses modern, AI-augmented tools to move fast and ship better.
Tools
- Cursor IDE
- Claude Code
- AWS (Lambda, ECS, RDS, S3)
- AI-based Code Reviews
- MagicPath
- Figma AI
Workflow Highlights
- Continuous deployment via GitHub Actions / AWS Pipelines.
- PR preview environments for instant testing.
- AI-driven code review loops for rapid iteration.
- Cross-disciplinary culture - work across frontend, backend, DevOps, and design.
Culture & Perks
- Ownership from day one - every role is founding-level.
- High-performance, meritocratic culture - growth based on impact, not tenure.
- Cross-discipline learning - explore code, design, and infrastructure alike.
- MacBook for work and premium tooling.
- Annual offsite for alignment and collaboration.
- Competitive compensation and ESOPs for core hires.
- Direct mentorship from the CTO and founding team.
- Real impact - reshape how humans learn to sell, speak, and persuade through AI.
We are seeking a mid-to-senior level Full-Stack Developer with a foundational understanding of software development, cloud services, and database management. In this role, you will contribute to both the front-end and back-end of our application. focusing on creating a seamless user experience, supported by robust and scalable cloud infrastructure.
Key Responsibilities
● Develop and maintain user-facing features using React.js and TypeScript.
● Write clean, efficient, and well-documented JavaScript/TypeScript code.
● Assist in managing and provisioning cloud infrastructure on AWS using Infrastructure as Code (IaC) principles.
● Contribute to the design, implementation, and maintenance of our databases.
● Collaborate with senior developers and product managers to deliver high-quality software.
● Troubleshoot and debug issues across the full stack.
● Participate in code reviews to maintain code quality and share knowledge.
Qualifications
● Bachelor's degree in Computer Science, a related technical field, or equivalent practical experience.
● 5+ years of professional experience in web development.
● Proficiency in JavaScript and/or TypeScript.
● Proficiency in Golang and Python.
● Hands-on experience with the React.js library for building user interfaces.
● Familiarity with Infrastructure as Code (IaC) tools and concepts (e.g.(AWS CDK, Terraform, or CloudFormation).
● Basic understanding of AWS and its core services (e.g., S3, EC2, Lambda, DynamoDB).
● Experience with database management, including relational (e.g., PostgreSQL) or NoSQL (e.g., DynamoDB, MongoDB) databases.
● Strong problem-solving skills and a willingness to learn.
● Familiarity with modern front-end build pipelines and tools like Vite and Tailwind CSS.
● Knowledge of CI/CD pipelines and automated testing.
We are looking for a Full Stack Developer to build scalable software solutions and to be part of our cross-functional team that’s responsible for the full software development life cycle, from conception to deployment.
You should have
- Degree in Computer Science or relevant field
- Strong knowledge and understanding of JavaScript and TypeScript
- Knowledge of multiple frontend languages and frameworks including HTML, CSS, SCSS, JavaScript and Vue.
- Knowledge of backend languages and frameworks primarily Node.js
- Familiarity with SQL databases (e.g. MongoDB)
Perks
- Flexible working hours - employee tracking is never a thing
- A fun and close-knit agile team.
- Open office layout that promotes collaboration, conversation, and camaraderie – the result-oriented team.
- Recreational activities to keep you away from the screen and live, laugh, enjoy with the team.
What we're looking for
- An experienced Software Engineer with a love for Web products
- demonstrated ability to contribute individually as well as in a team.
If you love spending time on Hackernews/Github and love experimenting with latest technologies, this might be the role for you.
Responsibilities
- Own the development of product features end-to-end including scoping, architecting, coding, testing, and rolling out features
- Work closely with PMs, designers, and other engineers to ideate solutions to user problems
- Become an expert in your product area and our tech stack Make improvements to developer productivity through process / code improvements and mentorship
- Work in a distributed team
- 2+ years of experience designing and building complex JavaScript web based software systems
- Demonstrable Full Stack development experience with Angular or React and Node.JS in Typescript.
- Knowledge of multiple modern computer languages and frameworks with an understanding of using the right technology for the right purpose
- Experience with remote development teams working on the same platform
- Experience with writing testable code and driven by best practices Agile development process knowledge/experience
- Bachelor’s degree in Computer Science or related field

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
Job brief
We are looking for a Full Stack Developer to produce scalable AI based software solutions.
You’ll be part of a cross-functional team that’s responsible for the full software
development life cycle, from conception to deployment.
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.
If you’re also familiar with Agile methodologies, we’d like to have conversation with you.
Responsibilities
- Work with data science teams ,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
- Work with data scientists and analysts to improve software
- Capable to handle the individual module / Project
- 2-5 years of relevant experience as a Full Stack Developer or similar role
- Experience developing Web based,desktop and mobile applications
- Familiarity with common stacks
- Knowledge of multiple front-end languages and libraries (e.g. HTML/ CSS, JavaScript, XML, jQuery etc).
- Knowledge of multiple back-end languages (e.g. Java, Python,C#) and JavaScript frameworks (e.g. Angular, React, Node.js)
- Experience in React.js .
- Experience in Python Django Framework .
- Familiarity with databases (e.g. MySQL,Postgresql, MongoDB), web servers (e.g.Apache) and UI/UX design .
- Familiarity with Cloud services like AWS, GCP.
- Excellent communication and teamwork skills
- Great attention to detail
- Organizational skills
- An analytical mind
Job Description –
- Full stack developer position.
- Should have total of 5-7 years of experience.
- Should have min. of 2 years of experience in developing Enterprise apps on React.js and 2 years on Django apps.
- Very good in Data structure, logical reasoning, and algorithms.
- Experience with cloud providers like AWS or Azure or GCP is also required.
- Good Understanding of Design and Integration patterns.
- Ability to work independently and with lots of ownership.
- Ability to learn and apply newer technologies quickly.
- Good to have knowledge in building progressive web apps.
Role Description
- You will be full stack senior developer.
- Handle team of junior backend and frontend developer.
- You can and want to write code end-to-end.
- You would enjoy designing a system for speed and scale.
- Developing product using Reactjs for front end and Python for back end.
- We want you to debate on the pros and cons of different architectures and tech stack choices and be real contributing members.
- We want people who can and want to learn new stuff in real-time while on the job.
Skills - JavaScript, React.js, HTML, CSS, SQL with MySQL / PostgreSQL, Python, Django, AWS or Azure or GCP







