Firmware & Backend API Developer

Job Description

Firmware & Backend API Developer ?? Location: BioNEST, South Moti Bagh, New Delhi ?? Company: ADJAC India Pvt Ltd. ?? Employment Type: Contractual, 6 months (Can be converted to full-time based on project requirements, and performance) About the startup ADJAC is building next-generation modular molecular diagnostic platforms, combining automated liquid handling, RT-PCR, and sample processing into a single integrated system. Our mission is to make advanced molecular testing faster, more affordable, and accessible at the point of care. By bridging embedded hardware with cloud-ready software, we are re-defining how diagnostics are deployed globally. About the Role We are hiring a Firmware & Backend API Developer with strong expertise in STM32 firmware development and FastAPI backend integration . The role focuses on bridging embedded hardware with backend systems for seamless communication. Immediate joiners are preferred . Key Responsibilities i. Develop and optimize firmware for STM32 MCUs using C/C++ (STM32CubeIDE, HAL, FreeRTOS) . ii. Implement backend APIs in FastAPI for communication with firmware over USB CDC/UART/SPI/I?C . iii. Design and maintain robust device?backend communication protocols with error handling. iv. Collaborate with backend/frontend teams for full system integration. v. Debug hardware?software issues using ST-LINK, logic analyzers, and protocol analyzers. vi. Contribute to documentation, version control (Git), and CI/CD pipelines. Required Qualifications 1. Proven experience in STM32 firmware development (C, C++, FreeRTOS) . 2. Strong working knowledge of FastAPI. 3. Familiarity with USB CDC, UART, SPI, and I?C communication protocols. 4. Strong debugging and optimization skills across embedded + backend. 5. Proficiency with Git for version control. Preferred Skills i. Experience with REST APIs and WebSockets. ii. Exposure to hardware-in-the-loop testing . iii. Familiarity with Docker, CI/CD, and Linux environments. Job Details 1. Salary: ?32,000 ? ?38,000 per month (based on experience) 2. Work Days : Monday?Friday + 2 Saturdays off per month (rest working) 3. Joining : Immediate 4. Last Date to Apply: 2nd October 2025 Why Join Us? i. Work on cutting-edge embedded + backend projects. ii. Collaborative startup environment with fast-paced development. iii. Opportunities for career growth across embedded systems and backend software. Apply Now: Send your CV/resume and GitHub profile link to [email protected]