GA Drilling is developing next-generation drilling technologies to unlock geothermal energy anywhere on Earth. Our mission is to make geothermal a globally scalable, baseload source of clean power by enabling access to hard, hot rock at depths and temperatures that conventional drilling cannot reach economically. Our work demands mastery across electronics, hydraulics, mechanics, systems, and control to create products that survive and perform in harsh, high-temperature, high-load downhole conditions.

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We are seeking an electrical technician with 3+ years' experience in lab and field testing of power-electronic and electromechanical equipment for downhole drilling systems, including prototyping, operating, and debugging the associated test equipment.

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You will be based at our Brazil office in Rio de Janeiro.

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The opportunity for you

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You will own the hands-on testing, calibration, and maintenance of electrical equipment for our downhole drilling systems — running functional and performance tests in the lab and supporting prototype bring-up, qualification campaigns, and operational deployments in the field. You will work alongside electrical, mechanical, and systems engineers, capturing test data and feeding it back into design and reliability improvements.

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Responsibilities

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1. Lab Testing & Calibration
   • Conduct functional tests, performance evaluations, and calibrations on power-electronic and electromechanical equipment to ensure compliance with quality standards and manufacturer specifications.
   • Operate electronic test equipment — multimeters, oscilloscopes, power supplies, and bench test rigs —to run characterization, qualification, and acceptance testing.
   • Diagnose and repair malfunctions in electronic circuitry, components, and systems at the board and assembly level, including soldering work on wire harnesses, surface-mount, and through-hole components.
   • Support prototype bring-up and design iterations by capturing test data, flagging anomalies, and feeding observations back to electrical and systems engineers.
2. Assembly, Field Support & Documentation
   • Assemble, disassemble, inspect, and perform preventative maintenance on power electronic equipment (power converters, power sources, electric motors and generators) according to technical specifications and procedures.
   • Maintain accurate service records, calibration logs, and repair documentation, and generate clear reports on work performed and equipment status.
   • Provide hands-on support to field representatives and drilling crews during qualification campaigns andd eployments, and travel to field locations when required.
   • Coordinate with other technicians, engineers, and field representatives to resolve complex issues,support failure analysis, and ensure seamless equipment deployment. Help maintain an organized work environment and manage inventory of electroniccomponents, parts, and supplies.
   • Support a positive and proactive HSE culture, adhere to HSE regulations and quality procedures, andhelp maintain a safe, organized work environment (5S, housekeeping, wastesegregation).

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What we expect from you

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1. Experience & Technical Domain Knowledge
   • 3+ years of experience working with high-voltage and power-electronic equipment, preferably in an industrial or oilfield environment.
   • Technical school certificate in electronics, electrical technology, or a related field, or equivalent relevant experience.
   • Proficiency with electronic test equipment (multimeters, oscilloscopes, power supplies, bench test rigs) and hand tools.
   • Soldering skills across wire harnesses, surface-mount, and through-hole components.
   • Ability to read, understand, and interpret technical manuals, drawings, schematics, blueprints, and engineering instructions.
   • Experience troubleshooting and repairing electronic equipment and generating clear service and calibration reports.
   • Ability to work in both Portuguese and English.
   • Basic computer literacy and familiarity with diagnostic software for data entry and analysis, plus strong problem-solving, analytical, and critical thinking skills.
2. Customer Interface & Cross-Functional Collaboration
   • Experience working alongside engineers, field representatives, and drilling crews to support testing,deployments, and on-site troubleshooting.
   • Excellent written and verbal communication skills, with the ability to capture lab and field test observations as clear, actionable feedback for engineering.
3. Execution, Testing & Operational Excellence
   • High attention to detail and discipline in service records, calibration logs, and repair documentation.
   • Ability to work independently or as part of a team, executing assigned tasks reliably against schedule and procedures.
   • Contributes to root cause analysis, corrective actions, and continuous improvement based on test and field results.
   • Ability to balance speed and rigor in fast-moving, technically challenging environments.
4. Professional Mindset & Working Style
   • Hands-on, practical mindset with a strong bias toward action and problem solving.
   • Comfortable on the shop floor, in the lab, and at field locations as required, including travel.
   • Strong safety and quality focus, with respect for procedures while helping refine them as systems and processes mature.
   • Adaptable and resilient in early-stage and transitioning-to-commercial technology environments. Open to giving and receiving constructive feedback that improves equipment performance and reliability.

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Nice to have

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• Associate degree or higher in electronics, electrical technology, or a related discipline.
• Experience with MWD/LWD, downhole tools, or other oilfield electronics.
• Familiarity with calibration management systems and qualification testing standards.
• Interest in geothermal energy, drilling systems, or high-temperature downhole environments.

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What we offer:

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• Opportunity to develop unique and innovative technological solutions which have the potential to change the world.
• The satisfaction of solving challenges associated with making ultra-deep geothermal energy a commercial reality.
• Be part of an experienced, global and highly motivated team.
• Collaborate with the world’s top industry players.
• Competitive industry compensation & benefits.

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