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30 full stack platform engineer jobs at 21 companies in Ontario, CA

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Full Stack Software Engineer, Data Platform (Starlink)
Redmond or Hawthorne
$125k-$200k/yr OnsiteFull Time
SpaceX
SpaceXNasdaq: SPCX: Designing, manufacturing, and launching advanced rockets and spacecraft.
1+ YOEBachelor's degree in a relevant technical field or 2+ years' software experience in lieu; 1+ year full-stack, software, data engineering, or data science experience. Programming and data platform experience preferred.
Scala, Java, C#, Python, Go, Angular, React, JavaScript, Apache Kafka, Spark, Flink, Hive, Delta Lake, PostgreSQL, CockroachDB, Grafana, Metabase, Power BI
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1mo
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Senior Full-Stack Engineer, Designer Experience
Glendale, California, United States
$160k-$200k/yr OnsiteFull Time
Moon
Moon: Independent vertical SaaS serving home-improvement businesses with an AI-powered platform for design, sales, service, and operations.
5+ YOE5+ years full-stack experience with C#/.NET and a modern front-end framework; cross-platform mobile a plus; product-minded with strong user communication; AI-native workflows.
C#, .NET, TypeScript
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1mo
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Sr. Full Stack Engineer
Rochester or Irvine or Frisco
$145k-$165k/yr RemoteFull Time
Megazone Cloud
Megazone Cloud: South Korean managed cloud services and AI consulting firm helping enterprises modernize infrastructure and adopt AI.
5+ YOE5+ years software/platform engineering; AWS serverless experience; proficiency in Python or TypeScript/Node.js; Terraform/IaC experience; Bachelor's in CS or equivalent.
Lambda, Step Functions, EventBridge, ECS Fargate, API Gateway, DynamoDB, S3, Amazon Bedrock, Python, TypeScript/Node.js, Terraform, CloudFormation, CDK, Bicep, Pulumi, GitHub Actions, GitLab CI, Jenkins, AWS CodePipeline, JIRA, Git, SAS, R
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3w
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Senior Full-Stack Engineer - TikTok Open Platform
San Jose or Los Angeles or Singapore or New York City or London or Dublin or Paris or Berlin or Dubai or Jakarta or Seoul or Tokyo
$218k-$388k/yr OnsiteFull Time
TikTok
TikTok: Short-form mobile video and social media platform.
5+ YOEBachelor's degree in computer science or related field, 5+ years of software engineering experience, strong JavaScript, TypeScript, HTML/CSS, React, backend development, system design, databases, microservices, and AI tooling.
JavaScript, TypeScript, HTML, CSS, React, Golang, Java, Python, Node.js, Cursor, Claude Code, LLM, RAG, Function Calling, Agents, MCP, OAuth
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2mo
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Full Stack Engineer Manager
New York or Milwaukee or Dallas or Columbus or Kirkland or Cincinnati or Cleveland or Oklahoma City or Austin or Albany or Chicago or St. Petersburg or Hartford or Pittsburgh or St. Louis or Miami or Sacramento or Raleigh or Minneapolis or Mountain View or Scottsdale or San Francisco or Morristown or Denver or Boston or Philadelphia or Des Moines or Overland Park or Los Angeles or Charlotte or Walnut Creek or Carmel or Seattle or Houston or Arlington or Atlanta or Redmond or Bentonville or Beaverton or Nashville or Detroit or San Diego
$80k-$294k/yr HybridFull Time
Accenture
AccentureNYSE: ACN: Global professional services delivering 360° value.
8+ YOEBachelor's degree or equivalent experience; 8+ years Python; 2+ years platform engineering; 1+ year with two of Linux admin, Docker/Kubernetes, modern JavaScript framework or DevOps; 1+ year Terraform; strong communication and problem-solving.
Python, Linux, Docker, Kubernetes, React, NodeJS, Terraform, EC2, Lambda, EKS, Fargate
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2mo
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Full Stack Developer
Norco, California, United States
$90k-$190k/yr OnsiteFull Time
CACI
CACINYSE: CACI: Provider of specialized IT and mission-critical government services.
5+ YOEBachelor's degree or equivalent, 5+ years software development experience, proficiency in Java/C#/Python/JavaScript/HTML/CSS, React/Angular, Node.js/.NET, cloud platforms, Microsoft SQL Server, Git; CompTIA Security+ and ability to obtain DoD SECRET; U.S. citizenship; onsite in Norco, CA.
Java, C#, Python, JavaScript, HTML, CSS, React, Angular, Node.js, .NET, AWS, Azure, Google Cloud, Microsoft SQL Server, Git, Docker, Kubernetes, CI/CD
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2w
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Senior Full Stack Engineer
Petah Tikva or Austin or New York City or Los Angeles or San Francisco or London or Berlin or Singapore or Tel Aviv
HybridFull Time
Digital Turbine
Digital TurbineNASDAQ: APPS: Public mobile advertising and monetization platform serving advertisers, app developers, carriers, and device manufacturers.
8+ YOERequires 8+ years building production platforms, strong backend architecture, system design, algorithms, data structures, APIs, testing, data modeling, front-end frameworks, and multiple programming ecosystems.
TypeScript, JavaScript, Java, Kotlin, Python, Go, Scala, C++, React, MySQL, PostgreSQL, AWS, GCP, CI/CD
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2mo
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Senior Software Engineer, Full-Stack (PSA Liquidity Platform)
San Francisco or Oakland or Berkeley or Santa Ana or New Jersey or Texas or Florida or Shanghai or Hong Kong or Japan or Canada or Mexico or Germany or France or United States
$141k-$229k/yr RemoteFull Time
Collectors
Collectors: Technology-driven authentication, grading, and vaulting services for collectibles.
6+ YOE6+ years engineering experience; strong Java (Spring Boot), React or Svelte; experience with microservices, Kafka, Kubernetes, AWS, observability tools; AI/ML tooling familiarity; strong communication and ownership.
Java, Spring Boot, React, Svelte, Kafka, Kubernetes, AWS, Datadog, New Relic, OpenTelemetry
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2mo
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Staff Software Engineer, Full Stack
Long Beach, California, United States
$181k-$249k/yr OnsiteFull Time
Relativity Space
Relativity Space: Aerospace developing 3D-printed rockets and launch services.
10+ YOE10+ years software engineering experience; designing and owning backend infrastructure that integrates edge hardware, ML, data platforms, and visualization; strong collaboration and execution in cross-functional R&D settings.
Terran R, Terran 1, Stargate
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3w
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Full Stack Software Engineer 5 - Content MiddleWare Infrastructure, Messaging
Los Gatos or Los Angeles
$388k-$558k/yr RemoteFull Time
Netflix
NetflixNASDAQ: NFLX: Global subscription-based streaming entertainment service and content producer.
Design and build scalable full-stack platforms and embeddable UI, strong backend microservices experience with OO languages, frontend expertise with React/TypeScript, operational ownership, mentoring, and cross-functional leadership.
GraphQL, RESTful APIs, HTML, JavaScript, TypeScript, CSS, React, Java, C#
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2w
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Senior Software Engineer, Editor Platform
Long Beach or Los Angeles
$150k-$200k/yr OnsiteFull Time
Sequence
Sequence: Private video-production software helping filmmakers and post-production teams edit, review, and collaborate in the cloud.
4+ YOEBachelor's degree in computer science or related discipline; 4+ years full-stack experience shipping user-facing products; algorithms, data modeling, APIs, UIs, cloud infrastructure, Kubernetes, and strong communication skills.
TypeScript, Svelte, Rust, Python, Kubernetes, WebRTC, WebGL, WebAssembly, FFMPEG, GStreamer, PipeWire
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2mo
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Manager, Software Engineering (Reliability Platform)
United States or California or Washington or New York or New Jersey or Connecticut or Los Angeles or San Francisco
$204k-$290k/yr RemoteFull Time
Affirm
AffirmNASDAQ: AFRM: Financial technology offering point-of-sale payment solutions.
7+ YOE2+ Mgmt7+ years backend/full-stack engineering experience with 2+ years engineering leadership; SRE/production engineering experience; observability and platform-building experience; strong programming (Python, Kotlin, Java); Bachelor\u0002s degree or equivalent experience.
Python, Kotlin, Java
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2w
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Senior Software Engineer
Boston or Costa Mesa
$191k-$253k/yr OnsiteFull Time
Anduril Industries
Anduril Industries: Defense technology developing AI-powered autonomous military systems.
5+ YOERequires 5+ years of software engineering experience, a technical degree, full-stack expertise, enterprise platform experience, JavaScript, React, TypeScript, and U.S. Person status.
Forge, Lattice OS, JavaScript, React, TypeScript, NextJS, ERP, MES, WMS, CRM
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3w
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AI Engineer - Lead
Irvine, California, United States
$130k/yr RemoteFull Time
Kind Lending
Kind Lending: Privately owned mortgage lender serving homebuyers and brokers through residential lending products.
8+ YOERequires 8+ years in AI application, automation, or full-stack cloud engineering, technical leadership, Python and JavaScript, cloud AI platforms, agentic frameworks, APIs, serverless architecture, and data analysis.
MCP, AWS Step Functions, AWS Lambda, OpenAI, Anthropic, Claude, Google Cloud Platform (GCP), Microsoft Azure, Devin, LangChain, Transformers, boto3, JavaScript, Python, RESTful APIs, SQL, pandas
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2mo
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Software Engineer 2 - Salesforce Developer
Brea or Minneapolis or Cincinnati
$111k-$131k/yr HybridFull Time
U.S. Bank
U.S. BankNew York Stock Exchange: USB: Diversified financial services and banking institution.
3+ YOEBachelor's degree or equivalent experience, 3+ years relevant experience, strong Salesforce platform skills (Apex, Visualforce, Lightning), API integration experience, agile/DevOps familiarity, full‑stack development and code quality focus.
Salesforce, Apex, Visualforce, Lightning Component Framework, APIs, web services
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3mo
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Lead Data Engineer
Los Angeles, California, United States
$130k-$170k/yr HybridFull Time
EXL Service
EXL ServiceNASDAQ: EXLS: Global data analytics, AI, and digital operations solutions.
6+ YOE2+ MgmtLead data engineering role requiring 6-8 years of experience, Databricks stack, SQL, Python, PySpark, data warehousing, Airflow, cloud platforms, and leadership responsibilities.
Databricks, SQL, Python, PySpark, Airflow, Cron, AWS, GCP, Azure, Tableau, Power BI, Hadoop, Hive, HBase, Pig, Spark
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1mo
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Senior Software Engineer
Long Beach or Los Angeles
$125k-$181k/yr RemoteFull Time
myPlace Health
myPlace Health: Private PACE healthcare provider serving vulnerable older adults with coordinated medical, social, transportation, and home-based care.
Experience building cloud-native full-stack solutions on Microsoft Azure, REST APIs, event-driven architectures, integrations (APIs/SFTP/batch), React/Node.js, PostgreSQL/Snowflake, Azure DevOps, and Dynamics 365/Power Platform.
Microsoft Azure, React, Node.js, PostgreSQL, Microsoft Fabric, Snowflake, OAuth 2.0, Azure DevOps, Microsoft Dynamics 365, Power Platform, Copilot Agents, Power Automate, Boomi, HL7, FHIR, Power BI, Databricks, SFTP, Git
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1w
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Application Development Engineer
Los Angeles or Dallas or Denver or Houston or New York City or Orange County or Palo Alto or San Francisco or Washington or Los Angeles
$140k-$170k/yr OnsiteFull Time
Gibson, Dunn & Crutcher
Gibson, Dunn & Crutcher: Private international law firm advising clients on complex transactions, disputes, investigations, and regulatory matters.
5+ YOE5+ years in application development, workflow development, systems integration, or programmer/analyst roles; bachelor's degree or equivalent experience; Microsoft stack, SharePoint, Power Platform, Azure, SQL Server, and Microsoft 365 experience.
Microsoft .NET Framework, Microsoft .NET Core, C#, ASP.NET, PowerShell, JavaScript, jQuery, HTML5, CSS3, XML, XSL, XSLT, SharePoint Online, SharePoint Server, Microsoft 365, Power Apps, Power Automate, Power BI, Dataverse, Power Pages, AI Builder, REST APIs, Microsoft Graph API, web services, custom connectors, Boomi, Microsoft SQL Server, T-SQL, SSIS, SSRS, Microsoft Azure, Azure Functions, Logic Apps, App Services, API Management, Azure DevOps, Git, Team Foundation Server (TFS), K2, Nintex, IntApp Intake, Copilot Studio, Application Lifecycle Management (ALM)
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2mo
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Staff Product Marketing Manager, Integration Stack and Developer Ecosystem
San Jose or Draper or New York City or Seattle or Austin or Houston or Los Angeles County or California or Massachusetts or Utah or Florida or North Carolina or United States
$137k-$202k/yr RemoteFull Time
BILL
BILLNYSE: BILL: Public financial operations platform automating payments, receivables, expenses, and cash management for small and midsize businesses.
8+ YOE8+ years B2B product marketing experience including 3+ years marketing platform/API/developer ecosystem products; strong market research, positioning, GTM, sales enablement, and fintech/payments domain knowledge.
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2mo
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EY-Parthenon - Strategy and Execution - Growth Platforms - Software Engineer - Sr Assoc/Consultant (New York, NY, US, 10001-8604)
New York or Atlanta or Boston or Chicago or Dallas or Denver or Detroit or Houston or Los Angeles or McLean or Hoboken or Philadelphia or San Francisco or Seattle
$130k-$185k/yr HybridFull Time
EY-Parthenon
EY-Parthenon: Strategy consulting brand serving CEOs, boards, private equity and governments with strategy, transactions and transformation advice.
1.5+ YOEBachelor's degree plus ~2 years related experience (or graduate degree plus ~18 months). Experience with backend/full‑stack development (Python, Java, Scala, TypeScript), cloud (AWS/GCP), containerization, IaC, LLM integration, and productionizing AI tooling; strong communication and client‑facing skills.
Python, Java, Scala, TypeScript, AWS, GCP, Microsoft Copilot
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