Position: Sr. Embedded System Engineer

Experience: 3 - 9 years

No. of Openings: 2

Location: Juinagar, Navi Mumbai

About Rymo

Rymo Technologies builds the robotic and AI-driven neurorehabilitation systems that help stroke survivors and people with movement impairments recover physical independence faster. Our products combine robotics, virtual reality/gamification, and clinical protocol design to make high-intensity, repetitive therapy engaging enough that patients stick with it. We operate under ISO 13485 and IEC quality and safety frameworks and are already deployed with hospitals and clinics across India.

We're a lean, founder-led team, which means the systems you build here become the systems the company runs on, not one opinion among fifty. If you've spent your career inside larger, process-heavy organizations and want to see your architecture decisions actually ship, own outcomes end-to-end, and work on hardware that changes how people recover from stroke; this is that kind of role.

Why This Role Exists

As Rymo scales toward US and EU markets, we're building a dedicated in-house embedded systems function to match — bringing full ownership of firmware and hardware architecture in-house for the first time. This role leads that build-out: set the technical bar from the ground up, and shape how the vertical is run rather than inherit someone else's constraints.

Role Overview

As Senior Firmware / Embedded Systems Engineer, you will own the embedded systems vertical end-to-end — architecture, firmware quality, hardware bring-up, and the roadmap for how our devices are built and certified. You will set technical direction, mentor the Junior Firmware Engineer already on the team, and act as the primary technical point of contact for embedded systems across product, quality/regulatory, and manufacturing. This is an ownership role, not a task-execution role: you will be expected to make and defend architectural decisions, not just implement someone else's.

Key Responsibilities

Technical Ownership & Architecture
Own the firmware and embedded architecture across Rymo's device portfolio, including microcontroller platforms (nRF52, STM32, and other ARM-based systems).
Define and enforce coding standards, version control practices, and a repeatable firmware release process, replacing informal or ad hoc practices from earlier stages of the company.
Evaluate and re-architect legacy or outsourced firmware/electronics where reliability or scalability is at risk.
Design for BLE communication, sensor integration, motor control, and real-time performance across robotic and rehabilitation devices.
Reliability, Quality & Compliance
Build and own test frameworks (unit, integration, hardware-in-the-loop) to catch defects before field deployment.
Ensure firmware and hardware design decisions align with ISO 13485, IEC 60601-1, IEC 62304, and relevant CDSCO/BIS/CE certification requirements.
Lead root-cause investigations for field issues and translate them into design or process changes.
Partner with the regulatory/quality team on design history files, risk documentation (ISO 14971), and traceability for audits.
Cross-Functional & Product
Work directly with mechanical, electronics, software, and clinical/product teams to translate product requirements into buildable, certifiable hardware/firmware.
Support production, field trials, and post-launch iteration, with an eye toward reducing launch time.
Contribute technical input to BD, grant, and regulatory submissions where embedded systems in detail is required.

Required Skills & Experience

3–9+ years of hands-on embedded systems / firmware engineering experience, with at least 2 years of owning architecture or leading a small team.
Deep expertise in Embedded C/C++, ARM Cortex-M architectures (nRF52, STM32 or equivalent), and RTOS or bare-metal real-time systems.
Proven experience with BLE communication stacks, peripheral drivers, and hardware debugging (oscilloscopes, logic analyzers, multimeters).
PCB literacy: able to design, review, and sign off on PCB layouts (Altium, KiCad, or Eagle) and catch issues before fabrication.
Regulated-hardware background (medical devices, automotive functional safety, or industrial safety) with exposure to IEC 60601, IEC 62304, ISO 13485, ISO 26262, or comparable standards strongly preferred.
Track record of ownership: someone who has previously inherited an ambiguous or under-resourced system and turned it into something reliable and scalable.
Communication: able to explain technical trade-offs to non-technical stakeholders (founders, clinical, regulatory) and to give/receive feedback directly and non-defensively.
Education: Bachelor's or Master's in Electronics, Electronics & Telecommunications, Mechatronics, or related engineering fields.

Nice to Have

Prior experience in a startup rebuilding or scaling an R&D function from a small base.
Familiarity with sensor fusion, motor control for robotic/rehabilitation devices, or gamified therapy hardware.
Experience building a technical hiring/review process from scratch.

How to Apply

Please send your resume and a short note on the most complex embedded system you've taken ownership of, what was broken, what you changed, and what the outcome was - to [HIDDEN TEXT] with the subject Senior Firmware / Embedded Systems Engineer.

Senior Embedded Systems Engineer