Mixed-Signal Hardware Engineer

EMTensor GmbH; Bengaluru; On-site; INR 1,800,000 - 2,800,000; Full time

Job summary

EMTensor GmbH seeks an experienced analogue/RF design engineer in Bengaluru to own the circuit design of mixed-signal boards. You will define schematics for the analogue front end, RF chain around 1 GHz, and the ADC/DAC interfaces, and brief a dedicated PCB engineer for layout.

You will compare with the reference board and coordinate with the FPGA team on firmware-impacting substitutions. The role emphasizes hands-on board bring-up, measurement, DFM, and end-to-end ownership from schematic to

Qualifications

• Board-level analogue and RF circuit design experience.
• Experience with measurement equipment (oscilloscope, spectrum analyzer, VNA).
• Altium knowledge and ability to brief PCB engineer effectively.

Responsibilities

• Rebuild the board project from manufacturing files in Weeks 1–4.
• Close out seven discontinued parts; assess drop-in, footprint, or block rework for ADRF6701.
• Get a batch built; brief fabricator and assembler, accept boards, resolve findings.
• Work with the FPGA engineer on substitutions affecting firmware.
• Perform board bring-up and debugging on real hardware; ensure design meets specs.
• Document changes, BOM, DFM, and maintain change control.

Skills

Analog design

RF design

PCB layout

S-parameters

Impedance matching

Noise budgeting

Altium Designer

Measurement tools

Tools

Altium Designer

OrCAD

KiCad

PADS

Job description

About EMTensor

EMTensor develops electromagnetic (microwave) tomography systems for brain imaging — scanners that detect and monitor stroke at the bedside and in the ambulance. We are headquartered in Vienna, Austria, with an engineering office in Bengaluru, India. The team is small, so the engineer who designs something owns it end to end.

The Role

You own the circuit design of our mixed-signal boards: an analogue front end, an RF chain around 1 GHz, and the digitization stage that follows it. Roughly half the board is analogue.

Layout is handled by a dedicated PCB engineer on the same team. Your job is to design the circuit and brief that engineer well — not to route it yourself.

Your First Six Months

We would rather tell you exactly what the work is than describe it in general terms.

Weeks 1-4

• Work through the existing package: 22 schematic sheets, eight-layer Gerbers, drill data, a 55-part BOM. Rebuild the board project from the manufacturing files.

Months 1-4

• Close out seven discontinued parts. The ADRF6701 is on the critical path. For each part, a verdict: drop-in, same footprint, or block rework.

Months 4-6

• Get a batch built. Brief the fabricator and the assembler, accept the boards, work through the findings.

Throughout

• Compare against the reference board.
• Work with the FPGA engineer on which substitutions touch the firmware.

What We Are Looking For

• Board-level analogue and RF circuit design — schematics you designed, built and brought up.
• Analogue: operational amplifiers, differential drivers, active and passive filters, voltage references, noise budget, dynamic range.
• RF: mixers, quadrature modulators and demodulators, PLL, VCO, frequency synthesizers, LNAs, attenuators, RF switches, impedance matching, S-parameters, noise figure.
• Data conversion: ADC and DAC, resolution and sample rate, differential inputs, anti-aliasing filters, common-mode levels, clock jitter.
• Component work: alternates, obsolescence, EOL and NRND, pin and footprint compatibility, second source, lead times. This is the bulk of the first few months.
• Altium Designer (Allegro, OrCAD, KiCad or PADS also considered).
• Board bring-up and debug on real hardware — you have seen a live board, not only CAD.
• Measurement: oscilloscope, spectrum analyzer, vector network analyzer, signal generator.
• Manufacturing and documentation: Gerbers, BOM, DFM, board acceptance, design documentation, change control.
• An understanding of what layout needs from you: stack-up, controlled impedance, differential pairs, return current, EMC.
• Based in Bengaluru. This role is on site; we are not relocating for it.

Nice to Have

• A background in radar, instrumentation or scientific equipment.
• SPICE or LTspice simulation.
• Experience rebuilding or re-issuing an existing design rather than starting from a blank sheet.

A Note on Scope

This is board-level design, not IC design. In India the title "Analog Design Engineer" often means work inside the chip — Virtuoso, tape outs, process nodes. That is a different profession and not what this role is. PCB layout is a separate position on the same team, which we are hiring for in parallel.

This Role May Not Suit You If

• Your experience is digital logic only, with no analogue or RF.
• Your design work has been academic, or limited to evaluation boards.
• Your recent work is repair and commissioning rather than design.