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37 principle developer jobs at 34 companies in Vallejo, CA

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Principle System Integration Engineer
Fremont, California, United States
$114k-$196k/yr OnsiteFull Time
Coherent
CoherentNYSE: COHR: Manufactures lasers, engineered materials, and optical networking components.
7+ YOEB.S. or M.S. in electrical engineering, physics, optics, computer engineering; 7+ years in technical marketing, customer engineering, systems engineering, or TPM for optical transceivers or datacenter hardware; strong cross-functional leadership; 800G/1.6T experience preferred.
CMIS, telemetry, DDM, power and thermal analysis, interoperability testing
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1mo
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Principle Software Engineer - Ads
San Francisco, California, United States
$269k-$395k/yr OnsiteFull Time
DoorDash
DoorDashNASDAQ: DASH: On-demand delivery platform connecting consumers with local merchants.
12+ YOE12+ years in distributed systems; leadership of large-scale platform initiatives; hands-on architecture decisions; ads infrastructure experience preferred.
Distributed systems, Real-time serving infrastructure, Data pipelines, Low latency systems
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2mo
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Principle Manufacturing Engineer
Palo Alto, California, United States
$129k-$209k/yr OnsiteFull Time
Palo Alto Networks
Palo Alto NetworksNASDAQ: PANW: Provides enterprise-grade network, cloud, and endpoint security software.
Bachelor's in engineering or equivalent; experience in DFx/DFM, DFA, FMEA, SPC, DoE, GR&R, CpK; CAD; SMT assembly; BOM reviews; PLM (Arena/Agile); experience with OEM/JDM/ODM; strong communication and multi-project leadership.
CAD tools, PLM software, Arena, Agile, SMT assembly, BOM/EC0 management
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2mo
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Principle Software Engineer, AI Observability & Evals Platform
Boston or San Francisco or New York City
$230k-$270k/yr OnsiteFull Time
LangChain
LangChain: Tools for building and deploying production-ready AI agents.
10+ YOE10+ years backend or full-stack engineering; strong Python/Go; TypeScript/React; architectural decisions; reliable, scalable systems; mentoring.
Python, Go, TypeScript, React
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Sr Lead Software Engineer - CAFE
Houston or San Francisco or Seattle
$171k-$260k/yr OnsiteFull Time
JPMorgan Chase
JPMorgan ChaseNYSE: JPM: Global financial services firm providing banking and investment solutions.
5+ YOE5+ years software engineering experience with formal training; expertise in system design, application development, cloud-native principles, Ansible, Windows/Linux, SCCM, PowerShell, and enterprise automation; experience with AI-assisted development tools and technical leadership.
Ansible, Microsoft Windows, Linux, Microsoft System Center Configuration Manager (SCCM), Microsoft PowerShell, GitHub, AWS, Azure
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3mo
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Software Engineer
San Francisco, California, United States
RemoteContract
Polymath
Polymath: Applied research lab developing autonomous AI agent simulation environments.
Strong engineering fundamentals; ability to build from first principles; high agency; shipping mindset; robust systems.
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2mo
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Senior Software Engineer, Security Platform
Bellevue or Menlo Park
$196k-$230k/yr OnsiteFull Time
Robinhood
RobinhoodNASDAQ: HOOD: Provides a commission-free platform for investing and financial services.
5+ YOE5+ years backend systems, data infra, or security; proficient in Python/Go/Java; cloud (AWS, Kubernetes); distributed systems (PostgreSQL, Kafka, Spark, Snowflake); data protection principles.
Python, Go, Java, AWS, Kubernetes, PostgreSQL, Kafka, Spark, Snowflake
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2mo
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Senior R&D Engineer
San Francisco, California, United States
OnsiteFull Time
Omen AI
Omen AI: Provides real-time fluid analysis to monitor critical infrastructure health.
Deep knowledge in applied physics, optical engineering, or physical chemistry; ECAD and MCAD proficiency (Altium and SolidWorks); prototype-driven, first-principles problem solving; spectroscopy experience preferred.
Altium, Solidworks
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2mo
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Robotics Hardware Engineer
Oakland, California, United States
$100k-$200k/yr OnsiteFull Time
Arxlight
Arxlight: Developing next-generation autonomous drones for security and defense applications.
BS/MS/PhD in Electrical/Mechanical/Mechatronics or Software Engineering; experience with electro-mechanical systems; prototype development; ability to read schematics; strong first-principles problem solving.
Solidworks, NX, Fusion 360, Altium, KiCad, Oscilloscopes, Power supplies, Multimeters, CAN, SPI, I2C, UART
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1mo
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Mechanical Engineer, Surgery & Robotics
Austin or South San Francisco
$83k-$224k/yr OnsiteFull Time
Neuralink
Neuralink: Developing implantable brain-computer interfaces to restore human capabilities.
3+ YOE3+ years mechanical engineering experience; strong first principles; BS in science or engineering or equivalent experience.
CAD, CAE, FEM, Matlab, Python
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5d
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New Product Introduction (NPI) Manufacturing Engineer
Santa Rosa, California, United States
$93k-$155k/yr OnsiteFull Time
Keysight Technologies
Keysight TechnologiesNYSE: KEYS: Provides electronic design, test, and simulation software and hardware.
Bachelor's/Masters/PhD in engineering, materials or sciences; ability to develop business and technical strategies; lead cross-functional teams; expertise in precision fabrication and manufacturing principles; familiarity with RF/microwave/mmWave; strong communication and organizational skills.
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1mo
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Assistant Engineer
Oakland, California, United States
$32-$42/hr OnsiteFull Time
Wood Rodgers
Wood Rodgers: Provides multidisciplinary engineering, planning, and surveying services for infrastructure.
0+ YOEBachelor's degree in civil engineering, 0–4 years experience, E.I.T. certification required or able to obtain within 6 months, proficiency with AutoCAD, Civil3D, and Microsoft Office, and knowledge of civil engineering principles.
AutoCAD, Civil3D, Microsoft Office Suite
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Founding Engineer: Agent Infrastructure
San Francisco, California, United States
OnsiteFull Time
Clera
Clera: AI talent agent matching professionals with high-growth startup roles
1+ YOE1+ years professional experience shipping to production; strong ownership, first-principles thinking, building production-grade infrastructure (APIs, LLM workflows, scraping, knowledge graphs), cloud and Linux experience.
LLM, Linux, APIs, knowledge graph
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18h
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Associate Electrical Engineer
Alameda, California, United States
$83k-$105k/yr OnsiteFull Time
Pyka
Pyka: Designs and manufactures autonomous electric aircraft for heavy-duty missions.
Bachelor's in Electrical Engineering or Robotics,0–2 years experience, hands-on PCB and lab experience, familiarity with motor control and safety principles, Linux and C/C++ skills.
Altium, KiCad, Eagle, Linux, C/C++, oscilloscope, power supply, multimeter
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2mo
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Security Engineer
Bellevue or Menlo Park or Washington or New York
$271k-$347k/yr OnsiteFull Time
Meta
MetaNASDAQ: META: Develops social networking platforms and virtual reality technologies.
15+ YOEB.S. in CS or related; 15+ yrs security risk management; 15+ yrs cross-company engineering; system design, threat modeling; engineered controls; security principles; threat knowledge; distributed systems; strong communication.
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1mo
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Entry-Level Engineer
Pleasanton or Sacramento or Millbrae or Sherman Oaks or Los Angeles or Irvine or Temecula or San Diego
$74k-$94k/yr OnsiteFull Time
The Whiting-Turner Contracting Company
The Whiting-Turner Contracting Company: Construction contractor providing engineering and construction services.
0+ YOEBachelor of Science in an engineering discipline; knowledge of engineering principles; ability to read technical specs and manage costs; proficient in MS Office; construction project experience.
Microsoft Project, Primavera, Suretrak, Microsoft Office Suite, Excel, Word
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3w
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Environmental Engineer 4
Concord, California, United States
$94k-$156k/yr HybridFull Time
CDM Smith
CDM Smith: Engineering and construction firm for global infrastructure projects.
5+ YOEBachelor's in engineering, EIT/FE within 18 months, 5+ years related experience, water/wastewater design experience preferred, knowledge of design principles, CADD, and Microsoft Office; travel up to 10%.
CADD, Microsoft Excel, Microsoft Word
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2d
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Staff Mechanical Engineer, Hydrogen System
Berkeley, California, United States
$129k-$169k/yr OnsiteFull Time
Form Energy
Form Energy: Developing multi-day batteries for grid-scale energy storage.
8+ YOEBachelor's in Mechanical Engineering and 8+ years mechanical design experience in fluid systems, prototyping, manufacturing, vendor engagement, safety, and first-principles fluids modeling.
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3d
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Senior Site Reliability Engineer
San Francisco, California, United States
$149k-$224k/yr HybridFull Time
Salesforce
SalesforceNYSE: CRM: Sells cloud-based customer relationship management and business software solutions.
5+ YOE5+ years systems and software engineering experience for large-scale internet services; expertise in SRE principles, containers, observability, incident management, Python and Go, and applying AI/ML to operations.
Temporal, Airflow, Argo Workflows, Docker, Kubernetes, DNS, HTTP, Grafana, Prometheus, ELK, Splunk, Datadog, Python, Go, Linux, Claude Code, GitHub Copilot, Codex, Cursor, AWS, GCP, MCP
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1mo
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Senior Security Engineer
San Carlos, California, United States
$165k-$240k/yr HybridFull Time
Beacon AI
Beacon AI: Developing an AI-powered-pilot for safer flight operations.
5+ YOESenior security engineer with 5–9 years of security engineering experience; strong knowledge of security principles, threat modeling, SIEM/IDS, encryption, and compliance (NIST, ISO 27001, CMMC); collaborate with software teams; DoD experience preferred.
SIEM, IDS/IPS, vulnerability scanning, encryption, threat modeling, CMMC, NIST, ISO 27001
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