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133 principal engineer software development jobs at 73 companies in Fairfield, CT

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Principal Software Development Engineer
Wellesley or Hartford or New York City or Arkansas or Vermont or Connecticut or Georgia or Texas or Minnesota or Michigan or Maine or Wisconsin or New York or District of Columbia or Kansas or Indiana or New Jersey or Nebraska or Rhode Island or Louisiana or Tennessee or Kentucky or Mississippi or Ohio or Oklahoma or West Virginia or Massachusetts or Maryland or South Carolina or Alabama or Missouri or Virginia or Illinois or North Carolina or Florida or New Hampshire or Delaware
$144k-$288k/yr HybridFull Time
CVS Health
CVS HealthNYSE: CVS: Provides retail pharmacy, health insurance, and pharmacy benefit management services.
10+ YOE10+ years software experience, 7+ years leading enterprise solution design, cloud-native microservices on GCP, Java/Python/Node.js, API design, strong communication and stakeholder skills.
Java, Python, Node.js, Angular, ReactJS, Google Cloud Platform (GCP), REST, APIs, CI/CD, SAFe
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1w
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Data Platform Principal Software Engineer
Jersey City, New Jersey, United States
$204k-$285k/yr OnsiteFull Time
JPMorgan Chase
JPMorgan ChaseNYSE: JPM: Global financial services firm providing banking and investment solutions.
7+ YOERequires formal software engineering training or certification, 7+ years of applied experience in applicable regions, system design and development expertise, programming proficiency, cloud-native experience, and agentic AI workflow leadership.
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1mo
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Principal Software Engineer
Santa Monica or Los Angeles or New York City or Bellevue or Seattle or San Francisco or Palo Alto
$235k-$414k/yr OnsiteFull Time
Snap
SnapNYSE: SNAP: Provides visual messaging software and augmented reality wearable devices.
10+ YOE10+ years software development experience, technical leadership experience, BS in a technical field (or equivalent), experience architecting distributed systems, strong software design and debugging skills, proficiency using AI tools and modern engineering workflows.
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3mo
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Principal Software Development Engineer in Test
New York or Glendale
$172k-$241k/yr HybridFull Time
The Walt Disney Company
The Walt Disney CompanyNYSE: DIS: Produces movies, operates theme parks, and provides streaming services.
10+ YOE10+ years in quality engineering or software development; leadership; experience scaling test automation.
Python, OO languages, Test automation, Cloud-native testing
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Let's begin! Principal Software Engineer (14868)
New York City, New York, United States
$192k-$278k/yr OnsiteFull Time
Moody's
Moody'sNYSE: MCO: Provides credit ratings, financial research, and risk management software.
12+ YOE5+ Mgmt12+ years of software engineering experience, including 5+ years leading engineering teams; expertise in AI platforms, LLMs, cloud-native architecture, production operations, and technical strategy.
TypeScript, Python, C#, large language models, retrieval augmented generation, orchestration frameworks, vector databases, NoSQL, serverless applications
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Principal Software Engineer (Hybrid)
Greenlawn, New York, United States
$129k-$219k/yr HybridFull Time
BAE Systems
BAE SystemsLondon Stock Exchange: BA: Provides advanced defense, aerospace, and security technology solutions.
6+ YOEBachelor’s degree in a technical field and 6–8+ years developing embedded or real-time software. Requires strong software engineering judgment and ability to obtain and maintain Secret clearance.
Jira, Bitbucket, Git, DO-178
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Principal Software Engineer
New York City, New York, United States
$192k-$278k/yr OnsiteFull Time
Moody's
Moody'sNYSE: MCO: Global provider of financial credit ratings and risk data.
12+ YOE5+ Mgmt12+ years of software engineering experience and 5+ years leading engineering teams; expertise in AI, LLM applications, cloud-native architecture, production-scale systems, and technical strategy.
TypeScript, Python, C#, large language models, retrieval augmented generation, orchestration frameworks, serverless applications, relational databases, NoSQL, vector databases, automated testing, machine learning operations
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2w
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Principal Engineer - UI
Pittsburgh or New York City
$160k-$200k/yr HybridFull Time
American Eagle Outfitters
American Eagle OutfittersNYSE: AEO: Global specialty retailer of high-quality clothing and accessories
10+ YOERequires 10+ years of software engineering experience, 3+ years in a Staff or Principal role, and expertise in Next.js, React, Node.js, BFF architecture, legacy modernization, design systems, testing, and observability.
Next.js, Ember.js, AI, Cursor, Gemini, Qodo, React, Node.js, GraphQL, Express, Backbone, Angular.js, Storybook, Bitbucket, Code Assist, Playwright, New Relic, Quantum Metric, OTe, Module Federation, Kafka, RabbitMQ, Terraform, AWS CDK, Optimizely, Google Tag Manager, SGTM, iOS, Android, WCAG, RUM, CI/CD
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Principal Software Engineer
New York City, New York, United States
$277k-$390k/yr HybridFull Time
Astronomer
Astronomer: Managed data orchestration platform powered by Apache Airflow.
10+ YOE10+ years infrastructure software engineering experience; expertise in control-plane architecture, API design, observability, Kubernetes, and strong communication skills.
Apache Airflow, Prometheus, OpenTelemetry, Grafana, Kubernetes, Helm, Etcd, Consul, PostgreSQL, Go, Python, TypeScript, REST, gRPC, Red Hat OpenShift
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1mo
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Principal Software Engineer
Englewood Cliffs, New Jersey, United States
$165k-$225k/yr HybridFull Time
Versant
VersantNasdaq: VSNT: Operates cable television networks and digital media entertainment platforms.
7+ YOE7+ years frontend development, strong testing and CI/CD experience, familiarity with Git/Jenkins/Jira, ability to design architecture and mentor engineers.
React, PostgresSQL, GraphQL, ElasticSearch, Redis, Node.js, Go, AWS, Jenkins, DataDog, Splunk, Github, StoryBook, Kubernetes, Amplitude, Git, Jira
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Principal, Software Engineer
Bentonville or Arkansas or San Francisco or New York City or New Jersey or United States
$110k-$220k/yr OnsiteFull Time
Walmart
WalmartNYSE: WMT: Operates a chain of hypermarkets, discount stores, and grocery stores.
5+ YOEBachelor's degree plus 5 years or 7 years of software engineering experience; expertise in JavaScript/TypeScript, frontend frameworks, APIs, distributed systems, cloud platforms, testing, and technical leadership.
JavaScript, TypeScript, React, Vue, Angular, React Router, Redux, Node.js, GraphQL (GQL), Azure, Google Cloud Platform, Selenium, Microsoft Azure, CI/CD, Software Development Life Cycle (SDLC), Web Content Accessibility Guidelines (WCAG)
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2mo
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Principal Software Engineer
United States or Canada or Columbus or Austin or San Francisco or New York City
$191k-$264k/yr RemoteFull Time
Upstart
UpstartNasdaq: UPST: AI-powered lending marketplace for consumer and automotive loans.
8+ YOEBachelor's or equivalent and 8+ years software engineering experience; designing and operating large-scale distributed systems, relational schemas, APIs, auth/RBAC; partnering with risk/compliance/operations teams.
TypeScript, Node.js, Next.js, Prisma, SOC 2, NIST CSF
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1mo
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Principal Software Engineer
New York City or Richmond
OnsiteFull Time
Genworth Financial
Genworth FinancialNYSE: GNW: Provides insurance products for aging care and mortgage protection.
10+ YOE10+ years software development experience; expertise in TypeScript, React, React Native, Flutter, GraphQL, Node.js, Next.js, Swift, Kotlin; experience with PostgreSQL/MongoDB, CI/CD, and platform architecture; bachelor’s degree or equivalent.
TypeScript, React, React Native, Flutter, GraphQL, Node.js, Next.js, Swift, Kotlin, PostgreSQL, MongoDB, CI/CD
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2mo
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Principal Software Engineer
New York City or United States
$175k/yr RemoteFull Time
Jahnel Group
Jahnel Group: Software development consultancy providing web, mobile, and AI solutions.
10+ YOE10+ years software engineering, deep AWS production experience, TypeScript/Node.js with Next.js/React, advanced PostgreSQL, event-driven systems, infrastructure-as-code (Terraform, CDK, OpenTofu), production ownership and on-call experience.
AWS Lambda, AWS Step Functions, Amazon ECS Fargate, SQS, EventBridge, Amazon RDS, Amazon S3, IAM, TypeScript, Node.js, Next.js, React, PostgreSQL, Go, Python, Terraform, CDK, OpenTofu, Cursor, Claude Code, Bedrock, OpenAI, Anthropic
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2mo
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Principal Software Development Engineer, Digital Assets & Web3
New York City or Chicago or Lithuania
$280k-$310k/yr HybridFull Time
DriveWealth
DriveWealth: Provides API-based brokerage infrastructure for fractional stock trading.
8+ YOE8+ years building production systems in regulated financial environments; hands-on with TypeScript, Java, JavaScript, Spring Boot, Node.js, NestJS, Kafka, Web3 integrations, OpenTelemetry, CI/CD, and secure distributed systems.
TypeScript, Java, JavaScript, Spring Boot, Node.js, NestJS, Web3.js, Ethers.js, WebJ, Apache Kafka, OpenTelemetry, CI/CD
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2mo
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Principal Software Engineer (Auth0)
Bellevue or Chicago or New York City or San Francisco or Washington
$244k-$376k/yr HybridFull Time
Okta
OktaNASDAQ: OKTA: Provide secure identity management and authentication for enterprises.
10+ YOE10+ years software development, 4+ years identity/cloud experience, 3+ years developer tooling experience; strong systems design, communication, and rapid learning skills.
Auth0, Auth0 FGA, Model Context Protocol (MCP), A2A, SDKs, Python
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1mo
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Principal Software Engineer
Redmond or Mountain View or New York
$143k-$275k/yr HybridFull Time
Microsoft
MicrosoftNASDAQ: MSFT: Develops software, services, devices, and cloud computing solutions.
6+ YOEBachelor's in CS or related and 6+ years engineering experience (or equivalent), coding in .Net/Java/JavaScript/Rust/Python; experience with distributed systems, AI evaluation, and reliability engineering.
.Net, Java, JavaScript, Rust, Python
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Founding Principal Engineer
New York City, New York, United States
$200k-$240k/yr HybridFull Time
Handspring
Handspring: Providing specialized mental health care for children and families.
8+ YOE8+ years building production software with staff/principal level experience; deep full‑stack skills; experience leading distributed teams; building in regulated or data‑sensitive environments; strong communication and technical leadership.
TypeScript, Node, React, AWS, EHR
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1mo
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Principal Software Engineer
New York City, New York, United States
$275k-$300k/yr OnsiteFull Time
Arlo
Arlo: AI-powered health insurance platform providing level-funded plans for businesses.
Deep experience designing and scaling complex software systems, strong product and operational judgment, and ability to apply AI to redesign workflows across insurance functions.
React, React Native, TypeScript, Python, Postgres
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1mo
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Principal Software Engineer, Tooling (Product)
New York, New York, United States
$193k-$275k/yr HybridFull Time
Gemini
GeminiNasdaq: GEMI: Regulated platform for trading and storing digital assets.
12+ YOE12+ years software engineering experience building and operating large production systems; expertise in backend/web/mobile, typed languages, architecture, AI-assisted development, and technical leadership.
TypeScript, Scala, Java, Go, JavaScript, React, React Native
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