📣 HiringCafe is hiring a Founding Growth Hacker! Learn More · Apply here
Limited-index browse page
Python Developer Jobs in Downey, CA, US
1,700+ python developer jobs from 450+ companies hiring in Downey, CA, US.
3w
Save
Mark Applied
Hide
Kafka & SIEM Integration Engineer
Camp Pendleton North, California, United States
$125k-$145k/yr OnsiteFull Time
7+ YOEBachelor's/Master's in Electrical/Electronic/Computer Engineering, Computer Science, or Information Systems; 7 years system administration experience; DoD 8570 IAT Level II; DoD 8570 CSSP Infrastructure Support; active DoD SECRET eligibility.
Linux, SQL, KQL, Confluent/Kafka, SSL/TLS, Java, Python, Go, Node.js, JSON Schema, Avro, Schema Registry
6d
Save
Mark Applied
Hide
Senior Digital Workplace Engineer
Beverly Hills, California, United States
$139k-$185k/yr OnsiteFull Time
5+ YOE5+ years in senior IT/digital workplace engineering; deep Microsoft 365; enterprise solutions; strong security and governance.
Microsoft 365, Entra ID, Intune, Jamf, SAML, OIDC, PowerShell, Python, ServiceNow, Jira Service Management, Microsoft Copilot
1mo
Save
Mark Applied
Hide
Site Reliability Engineer II
Austin or Irvine or Akron
$99k-$138k/yr HybridFull Time
2+ YOE2–4 years in site reliability, DevOps, or cloud operations; strong Linux; cloud platforms (Azure/AWS); IaC (Terraform/Ansible); CI/CD; monitoring; scripting.
Terraform, Ansible, CloudFormation, Prometheus, Grafana, ELK, Site24x7, Nagios, Python, Bash, PowerShell, GitLab, Kubernetes, AKS, EKS, S3, Blob Storage
9h
Save
Mark Applied
Hide
Firewall Security Networking Engineer
Chicago or San Francisco or Los Angeles or San Diego or Seattle
$120k-$140k/yr HybridFull Time
5+ YOEBachelor’s degree in CS/EE/CE or related field; firewall expertise (Palo Alto, Check Point); network design and troubleshooting; strong communication.
Palo Alto Firewall, Check Point Firewall, Panorama, Prisma, StrataCloud, tcpdump, Wireshark, Python, Ansible, Terraform, AWS, GCP, Azure
1w
Save
Mark Applied
Hide
Staff R&D Engineer
Irvine, California, United States
$103k-$171k/yr OnsiteFull Time
4+ YOEBachelor’s in Mechanical or Biomedical Engineering; 4+ years; experience with Class II/III medical devices; SolidWorks expert; injection-molded part design.
SolidWorks, CAD, CAE, 3D printing, Mold design, LabVIEW, Python, CFD
1mo
Save
Mark Applied
Hide
Epic Clarity Analyst/ SQL Developer - Remote
Los Angeles, California, United States
$96k-$140k/yr RemoteFull Time
3+ YOE3+ years SQL with various query tools; Epic Clarity, Tapestry, Reporting Workbench, Radar; healthcare data; Bachelor in CS/IT; Epic and SQL Server certs preferred.
SQL, Python, R, Oracle, SAS, Crystal Reports, Business Objects, Microsoft SQL, Tableau
1w
Save
Mark Applied
Hide
Field Service Engineer II - West
San Francisco or Los Angeles or United States
$90k-$100k/yr RemoteFull Time
3+ YOE2-4 years in a customer-facing technical service role; bachelor’s degree in life sciences or engineering; remote field service with substantial travel.
Python, Git, GitHub, Salesforce, CRM, Google Workspace, Liquid-handling automation systems
1mo
Save
Mark Applied
Hide
Principal R&D Design Engineer
Irvine, California, United States
$118k-$167k/yr OnsiteFull Time
6+ YOEBachelor/Master/PhD in engineering with relevant experience; FE modeling and software; CAD; nonlinear mechanics and fatigue.
SolidWorks, Creo, ABAQUS, LS-DYNA, Python, MATLAB, FE modeling
3w
Save
Mark Applied
Hide
Senior Quality Engineer (Valencia, CA, US, 91355)
Valencia, California, United States
$115k-$145k/yr OnsiteFull Time
5+ YOEBachelor's degree in engineering; 5-10+ years in quality/manufacturing engineering; strong AS9100/ISO 9001 knowledge; PPAP/FAI/MRB experience; root cause analysis; statistical tools; strong communication.
Minitab, JMP, Python, SPC, MSA
2mo
Save
Mark Applied
Hide
Sr Embedded Software Test Engineer I
Orange County, California, United States
$115k-$149k/yr HybridFull Time
5+ YOE5+ years software QA; 3-4 years testing desktop/embedded systems; QA in regulated environments; experience with electronic test equipment; strong QA processes; problem solving; able to work independently or in teams.
Linux, Python, C/C++, C#, .NET, MySQL, Test-Driven Development, JUnit
3w
Save
Mark Applied
Hide
Manager Procurement Principal Cost Engineer
West Chester or Cincinnati or Raritan or Irvine
$102k-$177k/yr HybridFull Time
10+ YOE10+ years in electronics cost engineering with EMS experience; bachelor's degree required; strong cost modeling and negotiation skills.
Microsoft Excel, PLM, ERP, BOM management, EDA tools, SQL, Python, Tableau, Power BI
1w
Save
Mark Applied
Hide
Senior Cybersecurity & Network Security Engineer
Laguna Hills, California, United States
$115k-$135k/yr OnsiteFull Time
5+ YOELead security strategies; 5–10+ years in cybersecurity; healthcare regulatory experience (HIPAA/PHI preferred).
Google Workspace Admin, Bitdefender, NinjaOne, AWS, Azure, GCP, Python, PowerShell, SAST, DAST, EDR, XDR, SIEM
1mo
Save
Mark Applied
Hide
Associate AI/Machine Learning Engineer
Long Beach, California, United States
OnsiteFull Time
0+ YOE0–2 years of experience; foundation in SQL and programming; basic ML knowledge; willingness to learn.
SQL, Python, PHP, MySQL HeatWave, HeatWave ML
3mo
Save
Mark Applied
Hide
Software Engineering Intern
Rancho Cucamonga, California, United States
$20-$22/hr OnsiteInternship
2+ YOEPursuing a technical BS with 2+ years completed; strong coding skills; git proficiency; knowledge of data structures and OS principles; experience in C/C++/Rust or Python/MATLAB; able to develop executable Python packages and work in a team.
C++, Rust, C, Python, Matlab, Git, Linux
2mo
Save
Mark Applied
Hide
Marine Structural Engineer - Long Beach (Long Beach, CA, US)
Long Beach, California, United States
$130k-$149k/yr OnsiteFull Time
8+ YOE8+ years in detailed design of port/marine structures; PE license or able to obtain; strong communication; travel willingness; proficiency in MS Office and structural software.
SAP2000, AutoCAD, Staad Pro, OPTIMOOR, MATLAB, Python, Abaqus
2mo
Save
Mark Applied
Hide
Distribution Automation Engineer 3 (Santa Ana, CA, US, 92705)
Santa Ana, California, United States
HybridFull Time
5+ YOEBachelor's degree in engineering or related field; 5+ years engineering experience in operations/production; valid driver's license.
VBA, SQL, Python, DMS/SCADA, EMS, CYME, Power Apps, Excel
4d
Save
Mark Applied
Hide
Graduate Mechanical Engineer in Los Angeles, California, United States
Los Angeles or San Francisco
HybridFull Time
0+ YOERecent graduate with degree in mechanical engineering; internship or project experience; strong communication; leadership and teamwork; eligible to work in the US; interest in sustainable built environment.
Revit MEP, Energy modeling, CFD, Dynamo, Python, Grasshopper
3d
Save
Mark Applied
Hide
Graduate Mechanical Engineer in Los Angeles, California, United States
Los Angeles or San Francisco
HybridFull Time
Bachelor’s degree in Mechanical Engineering or related field; strong interest in built environment and sustainability; internship or project experience preferred.
Revit MEP, CFD, Dynamo, Python, Grasshopper
2w
Save
Mark Applied
Hide
Principal Mechanical Engineer (Thermal Analyst) (Cypress, CA, US, 90630)
Cypress, California, United States
$113k-$176k/yr OnsiteFull Time
10+ YOEBachelor's in Mechanical or Aerospace Engineering; 10+ years thermal analysis experience; 5+ years spacecraft thermal analysis tools; TVAC testing experience; strong communication; security clearance.
Thermal Desktop, SINDA/FLUINT, SINDA/G, TSS, Thermal Vacuum Chamber, Creo, Ansys Workbench, Fortran, MATLAB, Python, VBA
2mo
Save
Mark Applied
Hide
Senior Airport Operations Planner/Analyst/Engineer
Los Angeles, California, United States
$165k-$186k/yr OnsiteFull Time
7+ YOE5-12 years in airport planning, operations, simulation, and data analysis; proficiency with CAST, Simio, data/software tools; degree in a related technical field.
CAST, Simio, Python, R, SAS, Excel, PowerBI, Tableau, GIS, AutoCAD, Revit, BIM
3mo
Save
Mark Applied
Hide
IT AI/Machine Learning Engineer - Onsite - Irvine, CA
Irvine, California, United States
$82k-$107k/yr OnsiteFull Time
3+ YOEBachelor's or master's in CS/AI or related field; 2+ years AI as business solution; 3+ years IT; life science/pharma experience preferred; strong AI/ML, cloud ops, programming.
Python, Perl, Bash, Java, C++, C#, PowerShell, Git, GitHub
2w
Save
Mark Applied
Hide
Director, Financial Systems Engineering (Product & Platform)
El Segundo, California, United States
$190k-$250k/yr OnsiteFull Time
9+ YOELead Python backend/frontend, distributed systems, Azure cloud, and data-driven financial platforms; 9+ years software development; AI-assisted tooling experience; strong communication and leadership skills.
Python, MySQL, PostgreSQL, MS SQL, Snowflake, MongoDB, Azure, Azure Functions, Azure SQL Database, Azure Kubernetes Service, Vue.js, Docker, Kubernetes, GitHub Copilot, Cursor, Sourcegraph Cody, CI/CD
1mo
Save
Mark Applied
Hide
SME - Software Engineering (DC)
Los Angeles or Washington
$200k-$310k/yr HybridFull Time
12+ YOE12+ years in software development; 10+ years in leadership; BS CS/SE or MS degree; proficient in Python/Java/C++; Agile/DevSecOps/SRE/CI/CD; TS/SCI clearance with CI polygraph.
Python, Java, C++, Agile, DevSecOps, Site Reliability Engineering, CI/CD
1mo
Save
Mark Applied
Hide
AI Solutions Architect
Calabasas, California, United States
$75k-$85k/yr OnsiteFull Time
2+ YOE2–3+ years in AI engineering or software development; Bachelor's in CS or related field; strong AI/LLM experience; Python, React, Node.js, Express.js; RESTful API design; AWS and DevOps; end-to-end solution thinking.
Python, React, Node.js, Express.js, SQL, PostgreSQL, AWS, CI/CD
1mo
Save
Mark Applied
Hide
Postdoctoral Fellow - Radiation Oncology
Duarte, California, United States
OnsiteFull Time
0+ YOEPhD in biomedical or electrical engineering; strong MRI pulse sequence development; coding in C++, MATLAB, or Python; independent yet collaborative researcher.
MRI, C++, MATLAB, Python
3mo
Save
Mark Applied
Hide
Data & Automation - Associate Development Program
Cerritos, California, United States
HybridFull Time
0+ YOEGraduates (May/June 2026) or soon-to-be grads; 40 hrs/week; Python familiarity; Pandas/NumPy or RESTful APIs; problem solving; agile environment.
Python, Pandas, NumPy, RESTful APIs
1mo
Save
Mark Applied
Hide
Data Scientist for Analytics (Engineer/Scientist Support)
Norco, California, United States
$70k-$143k/yr OnsiteFull Time
Bachelor’s degree; U.S. citizen; DoD SECRET clearance; on-site in Norco, CA; willingness to travel occasionally; proficient in MATLAB or Python; strong analytical and communication skills.
MATLAB, Python
3w
Save
Mark Applied
Hide
MU-Data Engineers II
Costa Mesa, California, United States
$129k-$130k/yr RemoteFull Time
2+ YOEBachelor's degree in computer science or related field and 2+ years data engineering experience with SQL and Python; experience with ETL, data pipelines, and AWS; knowledge of data warehousing and analytics tools.
SQL, Python, AWS (Lambda, S3, Glue, Redshift), Snowflake, Terraform, Bitbucket, Airflow, Jenkins, Tableau, Tealium, GA360, Braze
1w
Save
Mark Applied
Hide
AI/ML Applied Data Scientist - Generative AI (Newport Beach, CA, US, 92660)
Newport Beach, California, United States
$90k-$199k/yr HybridFull Time
3+ YOE3+ years in data science; at least 1 year with LLMs and agents in production; strong Python and ML tooling.
Python, PyTorch, LangGraph, Langfuse, MLFlow, Weights & Biases, PEFT (LoRA, QLoRA), vLLM, TensorRT-LLM
1mo
Save
Mark Applied
Hide
Intern, Backend Development
Burbank, California, United States
$30-$35/hr OnsiteFull Time
Graduate student in Computer Science or Software Engineering; strong .NET/C# skills; solid relational database knowledge; understanding of system design; able to work independently; experience with GenAI in software development.
.NET, C#, PostgreSQL, Python, Robot Framework, Docker, GitHub Copilot, Claude, ChatGPT
3w
Save
Mark Applied
Hide
Phantom Works Software Lead
Berkeley or Arlington or Mesa or El Segundo or Colorado Springs
$184k-$286k/yr OnsiteFull Time
5+ YOE5+ MgmtBachelor’s degree; 5+ years in leading software/architecture; Agile lead; DevSecOps and CI/CD experience; scripting (Python/Bash).
Git, Jenkins, CI/CD, Config Management, Python, Bash, JIRA, Collaborator, Beyond Compare, VersionOne
4w
Save
Mark Applied
Hide
R&D Associate - Consumable Development
Irvine, California, United States
$62k-$65k/yr OnsiteFull Time
DOE experience; SolidWorks CAD; wet-lab hands-on; data analysis (Python/JMP); cross-functional collaboration.
SolidWorks, CAD, Python, JMP, 3D printing, CNC machining
1w
Save
Mark Applied
Hide
Game Research & Development Intern, Engine Research
Los Angeles, California, United States
$28-$60/hr OnsiteFull Time
Strong coding skills in C++, Python, TensorFlow/Torch; knowledge of calculus, linear algebra; good communication and responsibility.
C++, Python, TensorFlow, PyTorch
3w
Save
Mark Applied
Hide
AI Creative Technologist
Los Angeles, California, United States
$160k-$180k/yr OnsiteFull Time
Portfolio required; AI-native work; strong experience with AI tools (ComfyUI), Python; production and pipeline expertise; ability to travel up to 25%; excellent communication.
ComfyUI, Python, After Effects, Premiere, Houdini, Nuke, DaVinci Resolve, Maya, Blender, Unreal Engine, Unity
3w
Save
Mark Applied
Hide
Sr. Professional, Software Engineering
Irvine or Dallas
$130k-$160k/yr RemoteFull Time
8+ YOE8+ years software engineering; strong Snowflake, Databricks, Python, SQL; cloud platforms; large-scale production systems; mentoring; AI/ML data capabilities.
Snowflake, Databricks, Apache Spark, Python, SQL, Cloud Platforms, Airflow, Dagster, Terraform, Tableau, Looker, Kafka, Pub/Sub
3w
Save
Mark Applied
Hide
Data Scientist II
Irvine or Remote
$83k-$127k/yr HybridFull Time
2+ YOE2–5+ years of data science experience; Bachelor's in CS/DS/Engineering/Math; production ML deployment; cloud platforms (Azure/AWS); Python and SQL; strong communication.
Python, SQL, Azure Machine Learning, AWS, SageMaker, LLMs, NLP
5d
Save
Mark Applied
Hide
Simulation Platform Partner Product Owner, Architect
Lake Forest or Houston or Philadelphia
$142k-$271k/yr HybridFull Time
7+ YOE7+ years in process industry; MS in Chemical Engineering; domain expert in chemical process simulation; experience with AVEVA Process Simulation or similar; Python coding ability; agile experience.
Python, C#, C++
3w
Save
Mark Applied
Hide
Research Programmer I
Los Angeles, California, United States
$46-$51/hr RemoteFull Time
3+ YOEMS in CS/Statistics/Mathematics; strong TypeScript/JavaScript and Python; 5 years React; 3 years Django/Flask/FastAPI; experience with MySQL/PostgreSQL; Git/GitHub; ability to work independently.
Python, TypeScript, JavaScript, React, Django, Flask, FastAPI, MySQL, PostgreSQL, Git, GitHub, Highcharts
3mo
Save
Mark Applied
Hide
SDET Programmer
Santa Monica, California, United States
$111k-$138k/yr HybridFull Time
3+ YOESDET role requiring CI experience, Python and C++, Perforce, 3+ years in game industry, shipped AAA title, BS in CS/Math or equivalent, hybrid work in Santa Monica, CA.
Continuous Integration, Python, C++, Perforce, Ansible, Databases, Frontend Web Development, HTML, JavaScript
1mo
Save
Mark Applied
Hide
Software Intern
Irvine, California, United States
$25-$40/hr HybridFull Time, Internship
2+ YOEUndergraduate student (rising senior in Summer 2026) pursuing CS/CE/Math or related field; strong communicator; experience with Python/JavaScript/C#/C++; REST APIs; JSON; cloud basics; excellent interpersonal skills.
Python, JavaScript, C#, C++, REST, JSON, AWS, GCP, Azure, Google Workspace
HiringCafe market data
Python Developer Jobs market signals in Downey, CA, US
These signals come from live HiringCafe job inventory, not a static article. Use them to compare the market, then open listings above to apply directly.
Open jobs
1,700+
Hiring companies
450+
Fresh sample
54% new in 30d
Salary visibility
85% show pay
Companies appearing in this market
City of HopeGalaxia TechnologiesUniversity of Southern CaliforniaCanon U.S.A.ArupCACICedars-SinaiCotality
Work location mix in visible results
Onsite: 34Hybrid: 22Remote: 5