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194 sr principal software engineer jobs at 101 companies in Stamford, CT

2w
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Principal Software Engineer
Bronx, New York, United States
$200k-$220k/yr HybridFull Time
Essen Health Care
Essen Health Care: New York-based multi-specialty medical group providing comprehensive community healthcare.
7+ YOERequires 7+ years of software engineering experience, principal-level impact, large-scale distributed systems experience, strong backend skills, architectural judgment, and end-to-end production ownership.
Python, FastAPI, React, TypeScript, MSSQL, Redis, Microsoft Azure, Azure Container Apps, Azure Static Web Apps, Azure DevOps Pipelines, Terraform, eClinicalWorks, Ellkay, Redox, FHIR
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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 and investment banking firm.
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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2mo
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Senior Principal Software Engineer
Totowa, New Jersey, United States
$145k-$247k/yr OnsiteFull Time
BAE Systems
BAE SystemsLSE: BA.: Global defense, aerospace, and security technology.
8+ YOEBS in Engineering +8 years experience (or equivalent); experience with C++, C#, Python, RTOS (RedHat/RTLinux); hands-on integration testing; leadership and SDLC familiarity; U.S. person and Secret clearance required.
C++, C#, Python, RedHat, RTLinux
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2d
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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 Corporation
Moody's CorporationNYSE: MCO: Global integrated risk assessment firm and provider of financial analytics.
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
New York City, New York, United States
$192k-$278k/yr OnsiteFull Time
Moody's Corporation
Moody's CorporationNYSE: MCO: Global integrated risk assessment firm and provider of financial analytics.
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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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 Inc.
Snap Inc.NYSE: SNAP: Technology focused on augmented reality and communication.
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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Principal Software Engineer
New York City, New York, United States
$277k-$390k/yr HybridFull Time
Astronomer
Astronomer: Private software providing managed Apache Airflow data orchestration for enterprise data teams.
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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3w
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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 apparel 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
Bentonville or Arkansas or San Francisco or New York City or New Jersey or United States
$110k-$220k/yr OnsiteFull Time
Walmart
WalmartNYSE: WMT: Global retail, e-commerce, and supply chain.
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: Public AI lending marketplace connecting consumers with banks and credit unions for personal, auto, and home-equity 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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4d
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Principal Software Engineer
Totowa, New Jersey, United States
$129k-$219k/yr OnsiteFull Time
BAE Systems
BAE SystemsLSE: BA.: Global defense, aerospace, and security technology.
6+ YOEBachelor’s degree in computer science, computer engineering, or related field; 6+ years’ experience; software development, Agile, testing, source control, JIRA, Confluence, and Bitbucket experience; U.S. citizenship required.
C++, C#, C, Python, Ruby, Perl, JavaScript, Git, JIRA, Confluence, Bitbucket, Docker, Kubernetes, JSON, Java, GoogleTest, Shell
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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: Private software consulting firm building custom enterprise applications, AI systems, and client-deployed engineering teams.
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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11h
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Principal Software Engineer
Redmond or San Francisco or New York City
$143k-$275k/yr RemoteFull Time
Microsoft
MicrosoftNASDAQ: MSFT: Multinational technology providing software, cloud, and AI solutions.
6+ YOEBachelor's degree in computer science or related field and 6+ years of technical engineering experience with coding; expertise in distributed systems, performance engineering, and technical leadership required.
C#, Java, C++, Rust, C, JavaScript, Python
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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: Private health insurance underwriter providing level-funded coverage and care support to small and medium-sized 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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1w
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Principal, Software Engineer
New York or California or Illinois or Atlanta or Boston or Chicago or Denver or Los Angeles or New York or Salt Lake City or San Diego
$122k-$165k/yr RemoteFull Time
DEPT
DEPT: A global digital agency bridging marketing and technology.
7+ YOERequires 7+ years software experience, 3+ years Python, expert backend and distributed systems knowledge, cloud and Docker experience, API integration, databases, frontend architecture, CI/CD, and technical leadership.
Python, Gemini CLI, Claude Code, Codex, Angular, TypeScript, Google Cloud, AWS, Azure, Docker, Git, Mercurial, Agile, CI/CD, Google's Agent Development Kit (ADK), SQL, NoSQL, LLM
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2mo
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Principal Software Engineer
New York City or Richmond
OnsiteFull Time
Genworth Financial
Genworth FinancialNYSE: GNW: Public U.S. insurance holding helping families fund long-term care and providing private mortgage insurance.
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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2w
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Senior Principal Software Engineer
Totowa, New Jersey, United States
$145k-$247k/yr OnsiteFull Time
BAE Systems
BAE SystemsLSE: BA.: Global defense, aerospace, and security technology.
8+ YOEBachelor's degree in computer science, computer engineering, or related field; 8+ years of experience; software development and testing expertise; active Secret clearance; U.S. citizenship required.
C++, C#, C, Python, Ruby, Perl, JavaScript, Git, JIRA, Confluence, Bitbucket, Docker, Kubernetes, JSON, Java, GoogleTest, Shell, Windows, Unix, Linux, Agile Development, DevSecOps
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Principal Software Engineer - Observability
New York City or Glendale
$193k-$259k/yr HybridFull Time
Disney Entertainment
Disney EntertainmentNYSE: DIS: Entertainment is a media division producing and distributing film, television, streaming, and games for global audiences.
10+ YOEBachelor’s degree or equivalent experience; 10+ years of software engineering; AI/ML, scalable APIs, cloud platforms, observability, agentic workflows, CI/CD, microservices, and technical leadership experience.
FastAPI, Flask, Anthropic, OpenAI, Google, Meta, Claude, Qwen, LangChain, LangGraph, AWS, Microsoft Azure, GCP, Cursor, Claude Code, GitHub, Docker, AWS/EKS, Datadog, Grafana, Conviva, OpenTelemetry (OTel), AWS Bedrock, PySpark, Pandas, Databricks, Snowflake, GPT
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(USA) Principal, Software Engineer
Hoboken, New Jersey, United States
HybridFull Time
Walmart
WalmartNYSE: WMT: Global retail, e-commerce, and supply chain.
5+ YOEBachelor's degree plus 5 years of software engineering experience, or 7 years of experience. Requires cloud-native architecture, AI/ML integration, scalable systems, and Python, Java, or C++.
Python, Java, C++, Web Content Accessibility Guidelines (WCAG) 2.2 AA
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1mo
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Principal Software Engineer
Englewood Cliffs, New Jersey, United States
$165k-$225k/yr HybridFull Time
CNBC
CNBC: -owned business and financial news network serving investors, business leaders, and audiences through television and digital media.
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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