94 quantitative developer jobs at 64 companies in Ontario, CA

2mo
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Quantitative Developer
Pasadena, California, United States
$134k-$158k/yr HybridFull Time
Franklin Templeton
Franklin TempletonNYSE: BEN: Global investment firm providing asset and wealth management services.
3+ YOE3+ years in quantitative finance or investment management; strong Python/SQL/Linux; solid fixed income risk knowledge; experience with large financial datasets; degree in CS/Math/Engineering or a quantitative field.
Python, SQL, Linux
1d
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Quantitative Meteorologist
El Segundo, California, United States
$120k-$180k/yr OnsiteFull Time
Rainmaker
Rainmaker: Provides cloud seeding services using drones and radar.
Advanced quantitative background in meteorology or related field, strong cloud/precipitation and NWP knowledge, statistical methods for correlated environmental data, Python and scientific-computing experience, and ability to design causal/validation studies.
Python, NumPy, SciPy, pandas, xarray, GRIB, netCDF, WRF, HRRR, GFS, ECMWF
3mo
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Quantitative Developer/Financial Modeling Specialist (AAP Program)
El Segundo, California, United States
$175k-$200k/yr OnsiteFull Time
Apollo Global Management
Apollo Global ManagementNYSE: APO: Global alternative asset manager providing investment and retirement solutions.
3+ YOE3+ years C# development; SQL; accounting/financial modeling knowledge; automate processes; STEM advanced degree.
C#, SQL, Relational databases, Financial modeling
1mo
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Quantitative Analytics Senior
McLean or Los Angeles County or United States
$126k-$190k/yr OnsiteFull Time
Freddie Mac
Freddie MacOTCQB: FMCC: Purchases and securitizes home mortgages for the secondary market.
3+ YOEPhD in quantitative discipline or Master’s +3 years. Expertise in predictive modeling, econometrics, optimization, machine learning, Monte Carlo; proficiency in Python, R, C++, SQL, SAS; independent model development and data processing.
Python, R, C++, SQL, SAS
1mo
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Quantitative Research Associate - Systematic Portfolio Construction
Los Angeles or San Francisco or New York or California or United States
$159k-$255k/yr OnsiteFull Time
Capital Group
Capital Group: Providing active investment management and research-driven financial strategies
5+ YOE5+ years relevant experience in optimization and systematic portfolio construction; advanced degree preferred; expertise in Python/Julia/R and optimization software (Gurobi or Mosek); strong quantitative, econometrics and communication skills.
Python, Julia, R, Gurobi, Mosek
1w
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Director, Pharmacometrics & Quantitative Medicine
Pasadena, California, United States
$225k-$262k/yr HybridFull Time
Xencor
XencorNASDAQ: XNCR: Develops engineered antibody therapeutics for cancer and autoimmune diseases.
10+ YOEMaster's plus 10+ years (PhD with 7+ years preferred) in pharmacokinetics or related field; T‑cell engager experience; CRO management; proficiency in PK/PD modeling and technical writing.
Rstudio, NonMem, Monolix, PUMAS, Microsoft Office Suite, SoftMax Pro, GraphPad Prism, JMP
1w
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Director, Pharmacometrics & Quantitative Medicine
Pasadena, California, United States
$225k-$262k/yr HybridFull Time
Xencor
XencorNASDAQ: XNCR: Develops engineered antibody therapeutics for cancer and autoimmune diseases.
10+ YOEMaster's plus 10+ years (or PhD plus 7+ years) in pharmacokinetics/pharmacology with T-cell engager experience, population PKPD and exposure-response expertise, Rstudio/NonMem/Monolix/PUMAS proficiency, regulatory knowledge, and people management experience.
Rstudio, NonMem, Monolix, PUMAS, Microsoft Office Suite, SoftMax Pro, GraphPad Prism, JMP
2w
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Software Engineer I
Los Angeles, California, United States
$91k-$111k/yr HybridFull Time
Los Angeles Capital Management
Los Angeles Capital Management: Quantitative equity management for global institutional investors.
1+ YOEBachelor's in a quantitative field, 1+ year production software experience, strong Python and SQL skills, familiarity with testing and Git, and effective communication.
Python, FastAPI, Pydantic, GitHub Actions, Snowflake, Prefect, Git, SQL, Azure, Docker, Dagster, Airflow
21h
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Quant Developer
New York City or San Francisco or Los Angeles or United States or Canada
$175k-$200k/yr RemoteFull Time
Gauntlet: Provides risk management and yield curation for DeFi protocols.
2+ YOEExperience building production quantitative systems, strong Python and software-engineering skills, applied quantitative and optimization skills, SQL and data pipeline experience, production ownership and clear technical communication.
Python, SQL, TypeScript, BigQuery, Dagster, Hex, GCP, Kubernetes, Solidity, EVM, anvil
2mo
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Full-Stack Developer - Capital Markets - NYC / Dallas / Los Angeles
New York City or Dallas or Los Angeles
RemoteContract
Portfolio BI
Portfolio BI: Software and data solutions for alternative asset managers.
5+ YOEBachelor's in a quantitative field; 5+ years software engineering; production ownership of web apps; finance/tech background preferred.
Python, C#, REST APIs, Async, Git, CI/CD, TFS, Confluence, Tableau, SSRS, React, TypeScript, JavaScript, HTML5, CSS, SQL, NoSQL, Azure, AWS
2w
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Systems Engineer – Carbon Management
Los Angeles, California, United States
$84k-$130k/yr OnsiteFull Time
University of California, Los Angeles
University of California, Los Angeles: A public research university providing higher education and research.
5+ YOEMinimum 5 years post-degree experience, strong technical writing and quantitative analysis, systems thinking, familiarity with TEA/LCA/process design/systems modeling; Master's required, PhD preferred.
2mo
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Financial Engineer
Pasadena, California, United States
OnsiteContract, Full Time
GalaxE.Solutions
GalaxE.SolutionsNYSE: DAVA: Provides IT consulting and software development for global enterprises.
Design and implement quantitative models; validate analytics; build data pipelines; collaborate with traders and software teams.
Python, Monte Carlo simulations, SQL, NoSQL, AWS, Azure, GCP, QuantLib, Pandas, NumPy, SciPy, Bloomberg, Refinitiv, FactSet, YieldBook, Intex, Aladdin
2w
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Data Engineer III
Irvine, California, United States
$119k-$160k/yr OnsiteFull Time
Glidewell
Glidewell: Designs and manufactures custom dental restorations and laboratory products.
5+ YOEBachelor's in quantitative field, 5+ years experience, strong SQL/Postgres/RedShift and Microsoft Excel skills, analytical mindset, and strong communication.
SQL, Postgres, RedShift, Microsoft Excel
1mo
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ERP AI Engineer - Senior Associate
Atlanta or Raleigh or Charlotte or Chicago or Cincinnati or Cleveland or Columbus or Dallas or Baltimore or Rochester or Rosemont or Sacramento or Boston or St. Louis or Salt Lake City or San Antonio or San Diego or San Francisco or San Jose or San Juan or Seattle or Spartanburg or Albany or Stamford or Tampa or Toledo or Austin or Tulsa or Washington or Denver or Des Moines or Detroit or Buffalo or Florham Park or Fort Worth or Greensboro or Hartford or Houston or Grand Rapids or Indianapolis or Irvine or Jacksonville or Kansas City or Las Vegas or Little Rock or Los Angeles or Louisville or Birmingham or Fayetteville or Melville or Miami or Milwaukee or Minneapolis or Montpelier or Nashville or New Orleans or United States or New York City or Oklahoma City or Orlando or Philadelphia or Phoenix or Pittsburgh or Portland
$77k-$202k/yr HybridFull Time
PwC
PwC: Providing audit, tax, and management consulting services to businesses.
3+ YOEBachelor's in a quantitative field, 3+ years developing AI/ML systems or integrating AI into software, experience with Oracle data/analytics tools, Docker/Kubernetes, CI/CD, vector DBs and model fine-tuning; strong critical thinking and client skills.
Oracle Database, Oracle Analytics Cloud, Oracle Data Integrator, Oracle Data Visualization, Oracle Machine Learning, Docker, Kubernetes, CI/CD, LLMs, vector databases, embedding models
1w
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Senior Schedule Engineer
El Segundo or Huntsville or Colorado Springs or Albuquerque or Chantilly or Crystal City or Greenbelt
$151k-$227k/yr HybridFull Time
The Aerospace Corporation
The Aerospace Corporation: Provides technical expertise and research for national space programs.
12+ YOEBachelor's in a quantitative/STEM field, 12+ years scheduling/program controls experience, proficiency with schedule and risk tools, EVM knowledge, ability to obtain TS/SCI clearance, willing to travel up to 10%.
ACEIT JACS, Primavera, Microsoft Project, Full Monte, Steelray Project Analyzer, Milestones Professional, Crystal Ball, @Risk, JIRA
3mo
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Machine Learning Engineer
Addison or Huntington Beach
$110k-$130k/yr RemoteFull Time
Confie
Confie: Distributes personal and small commercial insurance products nationwide.
Master's in a quantitative field required; strong Python and SQL skills; experience with large data, Snowflake/Snowpark, LLMs, LangChain, and deploying production ML/LLM solutions.
Snowflake, Snowpark, Python, SQL, LLMs, Generative AI, LangChain, sentence transformer frameworks, ChatGPT4, Retrieval Augmented Generation (RAG)
1mo
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Modeling & Simulation Engineer
El Segundo or Los Angeles or Washington or San Francisco or San Diego or Seattle or London
$140k-$190k/yr OnsiteFull Time
CHAOS Industries
CHAOS Industries: Develops advanced radar and sensing systems for modern defense.
5+ YOEBachelor's degree in a quantitative field, 5+ years supporting defense or advanced tech programs, proficiency in Python and MATLAB, experience with mission-level simulations (AFSIM, ESAMS, Brawler, Ansys STK), statistical analysis, Linux, and eligibility for Top Secret/SCI clearance.
AFSIM, ESAMS, Brawler, Ansys STK, Python, MATLAB, Pandas, Polars, NumPy, SciPy, Scikit-Learn, Matplotlib, Seaborn, CuPy, PyTorch, Linux, MAK VR-Forces, SIMDIS, PX4, X-Plane, Gazebo, NVIDIA Omniverse
3w
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Forward Deployed Engineer, Data & Analytics
Atlanta or Boston or Charlotte or Chicago or Dallas or Los Angeles or New York City or San Francisco
$145k-$195k/yr OnsiteFull Time
Accordion
Accordion: Provides financial consulting services to private equity firms.
5+ YOE5+ years in data science/engineering with strategic responsibility; strong statistics, ML, optimization, and quantitative analysis; experience advising business leaders; proficiency in Python, R, and SQL.
Python, R, SQL, LLM
2d
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Machine Learning Engineer II
Seattle or Los Angeles or Irvine
$159k-$255k/yr HybridFull Time
Esri
Esri: Global leader in geographic information system (GIS) software.
3+ YOE3+ years Python and SQL experience, ML for time series/quantitative modeling, full-stack ML (ETL→training→deployment), strong CS fundamentals, backtesting/quant finance or high-performance computing, AWS experience preferred.
Python, SQL, AWS, S3, ECS, EKS, Lambda
3mo
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ML Engineer - Evaluation Analysis, Metric and Data Strategy
Culver City or Cupertino or San Diego or Seattle
OnsiteFull Time
Apple
AppleNASDAQ: AAPL: Designs and sells consumer electronics, software, and online services.
5+ YOEBachelor's in a quantitative field; 5+ years in applied science/data science/evaluation; strong statistical methods; Python or R; experience with production data and evaluation metrics.
Python, pandas, scipy, scikit-learn, R