Lead Full-Stack Engineer

Armory India; Gurgaon; On-site; INR 1,800,000 - 3,000,000; Full time

Job summary

Armory Shield Private Limited in Gurgaon is seeking a hands-on Full-Stack Engineer to build secure, scalable applications for defence tech. You will work on both frontend and backend, integrating with hardware and IoT systems, and ensure performance and security under real-time pressure.

Ideal candidates have 3-5 years of experience, strong Python and FastAPI skills, and comfort with CI/CD, Docker, Linux, and PostgreSQL. This is a full-time, office-based role in Gurgaon.

Qualifications

• 3-5 years hands-on full-stack experience across frontend and backend.

Responsibilities

• Design, develop, and maintain scalable web, mobile & desktop applications for defence tech.

Skills

Full-stack development

Python

FastAPI

Asyncio

WebSockets

Docker

Linux

PostgreSQL

CI/CD

IoT

Tools

Git

pytest

Tauri

Electron

Job description

Armory Shield Private Limited | Full time

This job description will take ~15 minutes to read and ~15 minutes to apply. You increase your chances of selection by 10x if you read this to the end, slowly. Trust us on this.

What is Armory? What we are building requires hard work, tenacity, ownership, creativity and way more man-hours than an everyday job.

If you are a savant at what you do, love autonomy, have high agency and genuinely want to impact the future of this country, we want you to work with us starting yesterday!

Modern conflicts waged remotely demand a radical rethinking of strategy as adversaries deploy inexpensive drones and technology to inflict maximum damage with minimal risk.

If you prefer routine over the dynamic unpredictability of innovation, Armory isn't for you. Our fast-paced environment requires genuine curiosity, resilience, a passion for continuous learning, and comfort with rapid change.

Armory is a new-age defence tech startup building next-generation products to strengthen Indian forces in the modern battlefields.

About the founder

Amardeep Singh is an IIT Bombay alumnus & an aerospace engineer by education. He was a founding member of ideaForge - currently India’s biggest drone company & the first drone company to get listed on the Indian stock exchange.

His 16-year entrepreneurial journey is marked by a series of ambitious ventures spanning across diverse tech domains like Drones, Consumer Hardware, B2B SaaS & AI.

Problems we solve

Our country’s defence systems, conceived in a bygone era, have been outpaced by the rapid advancements in technology, revealing critical gaps that we, at Armory, are poised to bridge.

At Armory, we identify and solve the most critical, complex & specific challenges in modern warfare. By harnessing the power of artificial intelligence and diving deep into specific problems, we create innovative defence technologies and products that protect our nation and allies.

Why you should NOT join us:

If high stakes, tight deadlines, and significant challenges don't excite you, then our mission to revolutionise defence technology might not align with your career goals. We seek individuals who are ready to push boundaries and are motivated by the urgency of now.

We offer the opportunity to work on groundbreaking projects that strengthen national defence, supported by a team of A players.

Join Armory if you're drawn to solving hard problems and want to create a meaningful & profound impact on national security.

At Armory, you will do the best work of your life. Period.

Requirements

About this role

You will be responsible for both front-end and back-end development of robust, secure, and user-friendly applications tailored for defence technology.

• Design, develop, and maintain scalable web, mobile & desktop applications.
• Previous experience with Hardware, Software, and/or IoT is a plus.
• Collaborate with cross-functional teams to define, design, and ship new features.
• Ensure the performance, security, quality, and responsiveness of applications.
• Write clean, maintainable, and efficient code with a focus on security best practices.

Must haves

Architect and build scalable full-stack applications (web-first, with desktop extensibility via Tauri/Electron where needed), with 3-5 years of hands-on professional experience across frontend and backend systems.

Build and maintain secure, production-grade APIs in Python (3.10+) using FastAPI, typed end-to-end with Pydantic models for every request, response, message, and config object. If you don't use Pydantic everywhere, this isn't the job for you.

Deep, working fluency with asyncio , not just async/await syntax, but event loop mechanics, task management, cancellation, backpressure, and debugging async deadlocks under production pressure.

Design and implement real-time data pipelines using WebSockets, SSE, and message buses (MQTT, JSON-RPC over multiple transports) for live sensor and telemetry data.

Comfortable working close to hardware, integrating software systems with IoT devices, SDR pipelines, microcontrollers, and embedded subsystems over serial, USB, or LAN.

Design PostgreSQL schemas with performance, integrity, and operational scale in mind; understand indexing, partitioning, and time-series data patterns.

Own CI/CD pipelines, containerisation (Docker), testing (pytest with async test coverage), and release workflows on Linux

Linux-native: comfortable administering Ubuntu/Debian systems, writing systemd services, configuring networking, and diagnosing issues without a GUI.

AI-native in the right way, you use tools like Claude the way a sculptor uses a chisel: precise, intentional, and with a clear mental model of what the model will produce and why. You can articulate exactly what a model will generate, where it will hallucinate, and when not to trust it. You do not ship vibecoded slop.

Experience with Tauri (Rust + WebView) for packaging desktop/kiosk Linux applications

Familiarity with SDR concepts, I/Q data, signal processing pipelines, RF subsystem integration

uv for Python packaging and dependency management

Experience with data-dense operational UIs, not CRUD dashboards, but systems where operators make real-time decisions under pressure

What will make you successful in this role?

• Deep Technical Expertise in your domain.
• Shipping features weekly.
• Knack of integrating software for hardware systems in record time.

How will we set you up for success in this role?

• A live project:You will jump straight into a live project as soon as you join. No dummy or test projects.
• Access to resources:You name it, we will do everything to get it for you.
• Supportive team:You will be surrounded by the best minds ready to help you.

Our Hiring Process

We target to close the hiring process within 14 days of your application.

Duration: At your own pace, but if it takes you less than 15 minutes to apply, you are unlikely to move to the next round.

Round 2: Introduction and Technical Round

Duration: 1 hour

Demonstrate your expertise in the area we are evaluating. Ask good questions.

Round 3: Technical Round

Duration: 1 hour

Round 4:Culture Fitment

• Duration: 1 hour
• Help us understand your goals & aspirations. Share some of the stories that have made you what you are. Ask good questions.

Welcome aboard

• Congratulations! You are now a part of Armory.You will build something that lets you sleep at night with a feeling that you did something meaningful. Buckle up for a ride into the future.

Work Location:

Armory highly values having employees working in-office. We are establishing a collaborative work environment and company culture, and that simply does not happen from home. We are based out of Gurgaon and require employees to be in the office.

What we expect from you

• Founder’s mindset