Lewis L.Private profile: Upwork shows its earnings only to signed-in members, so we check it every few weeks, not daily. MRR here is a rough estimate (Upwork's six-month earnings ÷ months active). Last read Nov 5, 2026.

Senior electronics and embedded firmware engineer delivering complete, production-ready systems. I take ownership of electronics development from architecture through schematic design, PCB layout, firmware, and validation. Most projects are delivered independently, with structured communication and clear documentation throughout. I work with companies that: - Need to outsource electronics or firmware development - Have an existing product that requires improvement, redesign, or scaling - Require senior-level engineering without hiring internally - Value predictability, accountability, and clean handover What I Deliver - End-to-end electronics engineering: schematic design, PCB layout, prototyping, and validation - Embedded firmware development (bare-metal and RTOS) - Design updates, feature additions, and legacy system improvements - Manufacturing-ready designs with clear documentation - Smooth collaboration with in-house engineers, mechanical teams, and manufacturers Industries & Systems I’ve worked on products and systems across: - Industrial electronics - IoT and connected devices - Consumer and professional hardware - Sensor-based and control systems My focus is always on robustness, maintainability, and real deployment, not just prototypes. Why Companies Choose Me - Senior experience: I work autonomously and require minimal supervision - Clear communication: technical clarity for both engineers and non-technical stakeholders - Production mindset: designs intended for manufacturing, testing, and long-term use - Proven reliability: Top Rated Plus, 100% Job Success, long-term client relationships Engagement Models - Long-term outsourced electronics engineer - Short-term support for critical milestones - Fixed-scope development or redesign projects If you need a dependable electronics engineer who can integrate quickly and deliver without friction, I’d be happy to discuss your project.