CELSO E.
Senior Hardware / PCB Engineer @ Self-employed as Freelancer
About
Senior Hardware Engineer with 10+ years of experience delivering electronic hardware from requirements through schematic capture, PCB layout, validation, and production release. Strong expertise in Altium Designer, multilayer PCB design, embedded systems, analogue and digital circuit development, prototype verification, and manufacturing support. Additional experience includes laboratory testing, EMC/EFT awareness, communication interfaces, and power-related hardware, with a practical, hands-on approach to robust and production-ready design. Proven ability to support complex engineering projects in regulated and quality-driven environments.
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United Kingdom
Medical Device
Oscilloscope, Electrical Schematic Drawing services, Electronics Design Services, PCB Design Services, Prototype Design Services, Altium Designer, Analog Circuit Design, Simulation Software, Digital Signal Processing, Digital Electronics, Product Design, Embedded Software Programming, Electronics Design, Mixed-Signal Integrated Circuits, Organization Skills, Analogue, Electronic Circuits, Power Electronics, Automation and Modular conception (clean water, FMCG, industrial, phamarceutical), Business Strategy
Experience

Senior Hardware / PCB Engineer
Self-employed as Freelancer
• Delivered full-cycle R&D for a USB-C product, including schematic capture, component selection, prototype testing, and design validation. • Translated a prototype design into a production-ready PCB layout for ultrasound measurement equipment. • Reviewed the electronic design of two PCBs, including schematics, layout, and routing, and provided feedback on inconsistencies, manufacturability, and design improvements. • Supported design refinement for manufacturability and production release through practical hardware recommendations. • Converted an existing development prototype into a production-ready PCB layout, including schematic updates and layout improvements. • Worked across hardware design changes, PCB implementation constraints, and release-oriented design adjustments.

Operations & Maintenance Support Engineer
Aqualogy Environment Ltd
UK
Provide local field support during installation and start-up phases of installations, in the field of Wastewater & Sludge Treatment (site installation and commissioning). Install, by upon to fault find diagnosis of control panels and equipment. Configure of system architecture (SCADA/DCS) and networking (Ethernet, DeviceNet and Profibus). Coordinate, direct and supervise all operations and programs, biosolids program, activated sludge treatment that between customer requests on site and/or failures of the equipment. Prepare reports on site activity. Programme and automation of brand new machinery. Define and specify the overall control system requirements, engage with suppliers, source suitable equipment, liaise with external integrators, and be involved in the programming of the system.

Quatreau & Water Treatment Engineer
Woking, Surrey, UK
Assemble, service, develop, and install water treatment systems. Provide on-site maintenance to customers, assiste colleagues on solve complex equipment tuning matters. Provide daily support on major technical issues arises within the commercial sector of the business. Liaise with design manager to solve design issues, and with sales team to meet and exceed KPI´s.

Test/Service (Software) Engineer
Ashe Controls Ltd
Ipswich, Suffolk, UK
Assemble, service, develop, and install winding systems. Programme and write PLC code. Deal with service providers and distributors. Provide daily support on all technical issues regards the performance of equipment and troubleshoot in relation to same. Develop algorithms/formulas to align system performance with innovative mechanical design.

Diversity of Freelancer Engineer roles
CEHEKE
Portugal, France, Uk
Contribute on establish and develop of companies through renewable energy sector. Participate on strengthening bonds with existent and new customers. To listen their concerns and provide relevant solutions. Provide information and document to investors on wind farming, solar power and water treatment. Generate, perform and validate results of verification plans (test plans, analysis tests, system tests, development tests, unity tests, components tests, integration tests, acceptance tests, qualification tests). Develop of system architectures through alternative concepts and trade analysis, inclusive of, define and specify on overall control system requirements.

Field/Commissioning Engineer
Sterling Hydrotech Limited
Chesterfield, United Kingdom
Pre-commission and commission of water treatment systems on customer premises (British Aerospace, Shell, British Petroleum, Cambridge University, etc.). Assist to establish ISO:7001, and developed system integration platforms. Work closely with sales team on achieve and surpass sales targets.
CELSO E.'s Contact Information
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