Senior Electronic Engineer – Downhole Resistivity Tools (R&D)

Pioneer Precision in the Depths: Design the Future of Formation Evaluation

Tartan Energy Group Inc., a global innovator in advanced downhole sensing technology, seeks a visionary Senior Electronic Engineer to lead the development of next-generation downhole resistivity testing tools. If you excel at solving extreme-environment challenges and want to redefine accuracy in reservoir characterization, join our elite R&D team.

Location: Relocation to Shanghai, China

Position Type: Full-Time

Your Mission

Drive the architecture, design, and validation of high-precision electronic systems for cutting-edge downhole resistivity tools used in formation evaluation, pore pressure analysis, and reservoir mapping. Your work will directly impact data fidelity in harsh HPHT environments.

Core Responsibilities

· Lead Electronics Design: Architect analog/digital systems for resistivity, induction, and electromagnetic propagation tools, focusing on:

- Ultra-low-noise sensor interfaces (electrode arrays, toroidal coils).

- Precision AC/DC excitation circuits (±0.1% stability).

- Phase-sensitive detection & synchronous demodulation.

- Multi-frequency signal generation/analysis (1 kHz – 2 MHz+).

· HPHT Optimization: Design for 175°C+/25,000 psi+ environments: component derating, thermal compensation, and material reliability.

· EMI/Noise Mitigation: Develop shielding strategies, guard electrodes, and advanced filtering to reject downhole noise (e.g., mud, motor interference).

· Calibration Systems: Design embedded self-calibration circuits for field-deployable accuracy.

· System Integration: Collaborate with firmware/mechanical teams on sensor arrays, telemetry integration (wired/wireless), and tool miniaturization.

· Validation & Testing: Execute HPHT chamber, vibration, and EMI/EMC testing per API 86/ISO 20675. Analyze tool response vs. formation models.

· Technical Leadership: Mentor juniors, review designs, and pioneer novel measurement techniques (e.g., multi-frequency inversion, 3D imaging).

Essential Qualifications

· BSc/MSc/PhD in Electrical/Electronics Engineering.

· 7+ years in precision electronic design, including 3+ years in downhole resistivity/EM tools (wireline/LWD/MWD).

· Expertise in:

- Low-noise analog design (nV/pA-level circuits, instrumentation amps, PGIA).

- AC resistivity principles (phase, amplitude, skin depth, dielectric effects).

- High-stability oscillators/PLLs, waveform generators, lock-in amplifiers.

- PCB layout for mixed-signal systems (16+ bit ADCs, FPGAs, μControllers).

- Simulation (LTspice, ADS, FEM tools for EM fields).

· Proven HPHT design success (component selection, derating, MTBF >2,000 hrs).

· Experience with EMI/EMC standards (FCC, CE) and environmental testing (HALT/HASS).

· Language: fluent Chinese and English

Preferred Skills

· Downhole-Specific:

- Experience with array/multi-spacing resistivity tools.

- Knowledge of guard/feedback electrode topologies.

- Telemetry integration (e.g., OFDM, DSSS for high-speed data).

· Technical:

- FPGA-based DSP (VHDL/Verilog for real-time signal processing).

- Embedded C/C++ for calibration/control algorithms.

- LabVIEW/Python for automated test systems.

· Familiarity with API 11S5/ISO 21475 for resistivity tools.

Job Types: Full-time, Permanent

Pay: $65,563.67-$140,550.57 per year

Benefits:

- Dental care

- Extended health care

- Life insurance

- Paid time off

- Vision care

Work Location: In person