Senior RF Validation Engineer

Tacit

San Francisco (CA)

On-site

USD 150,000 - 200,000

Full time

14 days+

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Benefits offered by this job

Competitive equity package

Unlimited PTO

Comprehensive medical, dental, and vision insurance

Job summary

Tacit, an innovative deep tech startup in San Francisco, is seeking an RF Systems Validation Engineer. This role focuses on developing and executing RF validation plans and is ideal for candidates with strong RF fundamentals and hands-on lab experience.

The successful candidate, with over 5 years of experience, will tackle challenges in automated RF measurement and support production testing. The compensation ranges from $150,000 to $200,000 annually, alongside a competitive benefits package.

Qualifications

5+ years of experience in RF, electrical, validation, product test, or manufacturing test engineering.
Strong RF fundamentals and hands-on experience with lab equipment.
Experience debugging hardware from prototype through production.

Responsibilities

Develop and execute RF validation plans and characterization procedures.
Support EVT, DVT, PVT, and pilot builds with yield analysis.
Automate RF measurements across lab and production test setups.

Skills

RF fundamentals

Hands-on experience with RF lab equipment

Experience developing automated tests in Python

Understanding of electrical engineering principles

Education

Bachelor’s or Master’s degree in Electrical Engineering, RF Engineering, Physics

Tools

VNAs

Spectrum analyzers

Signal generators

Oscilloscopes

Job description

About Tacit

We are an early‑stage, deep tech startup based in San Francisco, developing innovative hardware that rethinks human‑computer interaction. We are backed by General Catalyst, Khosla Ventures, and Greylock Partners, with a founding team from Stanford, BrainGate, Oculus, and Tesla. While we can’t reveal too much just yet, our team is tackling cutting‑edge engineering challenges to bring revolutionary products to life.

About the role

We are looking for a RF Systems Validation Engineer to own scalable RF validation and production test infrastructure from prototype bring‑up through manufacturing ramp. The primary focus is RF characterization, system debug, automation, and bench‑to‑factory correlation.

This is a hands‑on role for someone who enjoys turning ambiguous hardware behavior into clear measurements, practical debug plans, and decision‑ready recommendations. Strong candidates may come from either RF systems validation or manufacturing test backgrounds, with growth into the other areas. We do not expect expertise in every listed area.

What you’ll do

RF Validation, Characterization, and Debug
- Develop and execute RF validation plans and characterization procedures for radar and connectivity prototypes, engineering builds, and production‑intent hardware.
- Characterize RF performance across frequency, power, temperature, configuration, and operating modes.
- Perform systematic RF debug and root‑cause analysis for impairments including conduct coexistence (CoEx), leakage, blockers, desense, nonlinearities, compression, spurs, harmonics, reciprocal mixing, noise coupling, and related RF/system‑level behaviors.
- Build RF budgets, compliance matrices, and concise summaries that connect measured behavior to product‑level requirements.
Manufacturing Test & Production Support
- Develop, validate, and optimize RF test flows for manufacturing, including calibration, limits, guard‑bands, and pass/fail criteria.
- Support EVT, DVT, PVT, pilot builds, and manufacturing ramp with data‑driven yield analysis and issue resolution.
- Partner with contract manufacturers and operations teams to improve test coverage, cycle time, repeatability, and troubleshooting efficiency.
- Create factory‑facing test documentation, debug guides, and high‑level summaries for recurring issues.
Lab Automation, Instrumentation & Data Analysis
- Automate RF measurements across lab and production test setups using calibrated RF instrumentation and test systems, including VNAs, spectrum analyzers, real‑time spectrum analyzers, signal generators, power meters, oscilloscopes, probers, power supplies, phase‑noise or noise‑figure measurement equipment, switch matrices, call boxes, wireless connectivity testers, and similar tools as needed.
- Build test matrices, collect structured datasets, and analyze trends across units, builds, conditions, and configurations.
- Use statistical methods to set limits, identify outliers, separate measurement artifacts from real failures, and drive yield improvement.
- Correlate bench measurements with automated test results and production data to close the loop between engineering and manufacturing.
Cross‑Functional Product Development
- Work closely with RF design, electrical engineering, firmware, validation, NPI, operations, and manufacturing partners.
- Provide practical feedback on DFM, DFT, test access, calibration hooks, fixture strategy, and debug visibility.
- Communicate complex RF findings in clear, actionable summaries for both technical and non‑specialist audiences.

Requirements

Bachelor’s or Master’s degree in Electrical Engineering, RF Engineering, Physics, or related technical field.
5+ years of experience in RF, electrical, validation, product test, or manufacturing test engineering; senior‑level candidates typically bring deeper ownership across product ramps.
Strong RF fundamentals, including noise floor, thermal noise, integrated noise, sensitivity, link budget, dynamic range, IIP2/IIP3, OIP2/OIP3, P1dB, compression, nonlinearities, blockers, leakage, and desense.
Hands‑on experience with RF lab equipment such as VNAs, spectrum analyzers or RTSAs, signal generators, oscilloscopes, power meters, probers, programmable power supplies, and related calibrated measurement systems.
Experience with component‑ and system‑level evaluation of RF blocks such as amplifiers, mixers, filters, couplers, splitters, PLLs, VCOs, and noise‑sensitive receiver paths.
Experience developing automated tests or lab scripts, preferably in Python or a similar language, for repeatable RF measurement and data capture.
Ability to define test matrices, pass/fail limits, compliance matrices, and concise validation reports.
Experience debugging hardware from prototype bring‑up through production‑intent builds and manufacturing ramp.
Comfortable working cross‑functionally in a fast‑paced hardware development environment.

Strong candidates may have

Familiarity with wireless connectivity test methods or standards such as Wi‑Fi, Bluetooth, BLE, UWB, cellular/call‑box workflows, conducted/radiated RF testing, packet‑level performance measurements, coexistence, sensitivity, and protocol‑level RF validation.
Experience with high‑volume manufacturing test, RF calibration, test fixture bring‑up, yield dashboards, or production data pipelines.
Experience supporting EVT, DVT, PVT, pilot builds, and mass production with contract manufacturers or factory teams.
Experience evaluating receiver sensitivity, noise figure, spur response, phase noise, harmonic rejection, isolation, and blocker performance.
Experience with DFM/DFT reviews for RF hardware, including test access, shielding, grounding, layout sensitivities, and fixture repeatability.
Ability to debug across RF, analog, mixed‑signal, firmware, and test software boundaries.

Success in this role looks like

Product RF performance is thoroughly characterized and well understood.
Validation plans provide comprehensive coverage of product requirements and technical risks.
Critical RF issues are identified early and resolved through data‑driven root‑cause analysis.
Automated validation infrastructure accelerates learning and improves engineering efficiency.
Measurement results directly influence product architecture, design decisions, and calibration strategies.
Validation data correlates strongly with real‑world product performance.
Prototype learnings translate into more robust products and faster development cycles.

Compensation Range

$150,000 - $200,000/year

Benefits