Job Description

Lead Embedded Software Engineer

Wotton under Edge / Hybrid (3 days office based)

up to 60000 depending on experience

Renishaws Encoder Products Division (EPD) designs and supplies cutting-edge position feedback technology to the worlds precision measurement automation and manufacturing industries. It is highly likely that something you own contains a part or device that was manufactured with the help of one of Renishaws encoder products.

EPD is made up of engineers scientists and technicians all working together to produce market leading products for sale around the world. We start with cutting edge optical algorithm and circuit design developing our own ASICs and sensors where required; we then use innovative mechanical engineering to turn our core technology into a range of desirable products for our broad customer base.

Working closely with colleagues in our manufacturing division we develop manufacturing and assembly processes and software to deliver quality products by the hundreds of thousands that in turn perform reliably and repeatedly to sub-micron accuracies for our customers.

Were looking for a Lead Embedded Software Engineer to take technical ownership of the firmware in our high-performance sensor and encoder products. This is a hands-on role combining architecture and delivery leadership with day-to-day embedded development debugging and verification on real hardware.

Our systems are typically bare-metal and real-time and in some products the MCU works alongside an FPGA (either as a co-processor to the FPGA or with the FPGA as a co-processor to the MCU). For certain product lines you will also contribute to development practices and evidence that support functional safety certification.

Youll work closely with systems electronics algorithms FPGA/RTL and test team - and youll play a key role in mentoring graduates and apprentices helping the team deliver reliably while developing capability.

Key responsibilities

• Lead and deliver hands-on embedded firmware development for real-time bare-metal MCU-based products from early prototypes through to production and long-term support.

• Own and develop firmware architecture and design including timing strategy interrupt design resource/memory budgets interface definitions test strategy approach and maintainability over the product lifecycle.

• Develop and maintain firmware that interfaces effectively with FPGA-based subsystems collaborating with FPGA/RTL teams on partitioning interfaces timing data movement and validation of MCUFPGA interactions.

• Drive capture refinement and traceability of requirements working closely with systems electronics algorithms FPGA/RTL and test teams - translating high-level user expectations into implementable firmware requirements and verifiable behaviour.

• Understand evaluate and implement embedded algorithms on MCU targets with a focus on performance accuracy determinism numerical robustness and repeatable behaviour. Algorithm improvements are encouraged but the day-to-day focus is reliable implementation.

• Optimise for power performance and determinism applying power-aware design techniques (sleep states peripheral gating DMA strategies interrupt minimisation timing/throughput trade-offs) to reduce system consumption without sacrificing performance.

• Set engineering direction and maintain high standards through design reviews code reviews coding standards and pragmatic best practice adoption.

• Define verification and validation strategy across unit integration and system-level testing (including testability hooks diagnostics and hardware-in-the-loop approaches where appropriate).

• Support functional safety certification where required contributing to safety lifecycle activities such as safety requirements design constraints traceability verification planning and producing audit-quality evidence.

• Produce and maintain clear documentation: architecture interfaces design rationale timing/power budgets verification approach and support notes suitable for long-term product maintenance.

• Mentor and support engineers especially graduates/apprentices: create well-scoped work packages provide guidance and review and help maintain delivery momentum despite high junior-engineer rotation.

Essential requirements

• Strong demonstrable experience in modern C for embedded systems.

• Proven experience designing and maintaining embedded firmware architectures for MCU-based products.

• In-depth understanding of ARM microcontroller architectures (e.g. CortexM) including interrupts/exceptions/DMA memory systems timers and common peripherals.

• Solid experience with bare-metal real-time firmware development and debugging on real hardware.

• Practical experience building reliable firmware around serial/low-level communications protocols (e.g. SPI I²C UART CAN/RS485 or similar) and diagnosing hardware/firmware integration issues.

• Experience with build systems and developer tooling including CMake (or equivalent) and maintaining clean reproducible builds.

• Experience writing and maintaining unit tests (embedded or host-based) and designing code for testability.

• Demonstrable ability to design for power in embedded systems: understanding low-power modes peripheral management timing/power trade-offs and measurement-driven optimisation.

• Strong grasp of software quality principles: readability maintainability robustness traceability and testability.

• Clear written and verbal communication able to align teams around interfaces requirements and design trade-offs.

• Degree in engineering/computer science (or equivalent practical experience).

Desirable requirements

• Experience working on products where an FPGA is part of the system including MCUFPGA interface definition data movement timing/latency analysis and collaborative debug (you dont need to be an RTL designer but you should be comfortable working with FPGA teams).

• Familiarity with functional safety development (IEC61508 and ISO13849) and/or supporting products through certification (e.g. safety lifecycle artefacts traceability Verification & Validation evidence).

• Knowledge of coding standards and safety-oriented development practices (e.g. MISRA C/C static analysis code coverage defensive programming).

• Experience with secure development practices in embedded systems.

• Experience with Git-based workflows and issue/change management tools (e.g. Azure DevOps).

• Experience with automated CI build/test pipelines for embedded firmware.

• Understanding of DSP fixed-point arithmetic numerical methods or similar techniques relevant to sensor systems.

• Background in electronic engineering or strong lab skills: schematics familiarity test strategy instrumentation and systematic fault isolation.

Person specification

You are a technically strong engineer who leads by example and thrives in multidisciplinary environments. You are comfortable working at the boundary between firmware and the wider system and you can understand and collaborate across electronics FPGA/RTL mechanics and optics to shape system architecture and translate user expectations into robust testable requirements.

You take ownership of complex problems communicate clearly and maintain a high bar for engineering quality. You are also motivated to develop others: you can mentor graduates and apprentices effectively break down work into well-scoped packages that fit varied experience levels and time horizons and keep delivery on track even with the regular rotation of early-career engineers.

Benefits

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