Job Description

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 175C+/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, ?Controllers).

- 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