Top Principal Software Engineer Jobs in NYC, NY

Reposted 20 Hours AgoSaved
In-Office
New York, NY
Expert/Leader
Expert/Leader
Artificial Intelligence • Information Technology • Software
The Principal Software Engineer will lead architecture, mentorship, and technical execution for scalable systems, influencing product strategies.
Top Skills: Ai-Assisted DevelopmentC++Ci/CdDockerGoJavaKubernetesObservability ToolsPythonRust
Reposted YesterdaySaved
Hybrid
New York, NY
204K-337K Annually
Expert/Leader
204K-337K Annually
Expert/Leader
Blockchain • Fintech • Payments • Consulting • Cryptocurrency • Cybersecurity • Quantum Computing
Lead the design and implementation of an Internal Developer Portal. Mentor engineers, drive automation standards, and enhance engineering productivity for Mastercard's software development teams.
Top Skills: AWSAzureC#JavaNode.js
Reposted YesterdaySaved
Easy Apply
Hybrid
New York, NY
Easy Apply
215K-295K Annually
Expert/Leader
215K-295K Annually
Expert/Leader
Fintech • HR Tech
This role involves leading technical projects across multiple teams, designing scalable systems, collaborating with cross-functional teams, and mentoring engineers, focusing on payroll and tax systems at Gusto.
Top Skills: AIMachine LearningReactRuby On RailsTypescript
2 Days AgoSaved
In-Office
New York, NY
227K-303K Annually
Expert/Leader
227K-303K Annually
Expert/Leader
Cloud • Information Technology • Machine Learning
Lead technical strategy and architecture for Developer Experience: build scalable build/test/delivery systems, improve CI/CD throughput, design internal platforms/APIs/SDKs/CLIs, integrate LLM/agentic tooling safely, mentor senior engineers, and drive cross-team initiatives to increase engineering velocity, reliability, and maintainability at organizational scale.
Top Skills: Agentic FrameworksArtifact DistributionCachingCi/CdClisContainer RuntimesCrdGoKubernetesKubernetes OperatorLlmsOci Image StandardsPythonRemote ExecutionSdksWorkflow Engines
Reposted 2 Days AgoSaved
Hybrid
New York, NY
235K-414K Annually
Senior level
235K-414K Annually
Senior level
Artificial Intelligence • Cloud • Machine Learning • Mobile • Software • Virtual Reality • App development
The Principal Software Engineer will develop ads infrastructure, lead technical direction for the Ads Platform, and ensure high availability and performance of systems. Responsibilities include collaborating across teams and advocating for best practices.
Top Skills: Distributed SystemsProgramming Languages
Reposted 6 Days AgoSaved
Easy Apply
Hybrid
New York, NY
Easy Apply
251K-340K Annually
Senior level
251K-340K Annually
Senior level
Healthtech • Pharmaceutical • Telehealth
Lead architectural decisions, mentor engineers, and drive technical strategies for scalable software systems, focusing on high-quality solutions and system health.
Top Skills: DatadogPython
Reposted 10 Days AgoSaved
Hybrid
New York, NY
235K-414K Annually
Senior level
235K-414K Annually
Senior level
Artificial Intelligence • Cloud • Machine Learning • Mobile • Software • Virtual Reality • App development
The Principal Software Engineer will design and implement systems for the advertiser experiences at Snap, lead technical vision, mentor engineers, and innovate on creator marketplace products.
Top Skills: Distributed SystemsProgrammingSoftware Design
Reposted 10 Days AgoSaved
Remote or Hybrid
New York, NY
235K-414K Annually
Expert/Leader
235K-414K Annually
Expert/Leader
Artificial Intelligence • Cloud • Machine Learning • Mobile • Software • Virtual Reality • App development
The Principal Software Engineer will design and scale engineering components, lead projects, advocate best practices, and influence technical direction across teams.
Top Skills: DebuggingDistributed SystemsPerformance AnalysisSoftware DesignTest Design
2 Days AgoSaved
In-Office or Remote
New York, NY
140K-160K Annually
Senior level
140K-160K Annually
Senior level
Big Data • Information Technology • Software • Analytics • Energy
Lead design and build of scalable backend systems and data platforms; own architecture and production deployments; improve reliability, performance, and observability; mentor engineers and collaborate with Product, Data Science, SRE, and Security.
Top Skills: ArgoAWSAws BedrockClaudeClickhouseDockerGoGrafanaHoneycombKafkaKubernetesLangchainMySQLPulumiPythonRustSentryTerraform
Reposted 11 Days AgoSaved
Remote or Hybrid
New York, NY
185K-215K Annually
Senior level
185K-215K Annually
Senior level
AdTech • Cloud • Digital Media • Information Technology • News + Entertainment • App development
The Principal Software Engineer will architect shared application libraries, improve CI/CD pipelines, mentor engineers, and drive technical direction across mobile and OTT platforms for NBC News.
Top Skills: AvfoundationCi/CdExoplayerJw PlayerKotlinKotlin MultiplatformMobile ApplicationsSwiftVideo Playback Technologies
3 Days AgoSaved
Remote or Hybrid
New York, NY
Expert/Leader
Expert/Leader
Fintech • Software
Lead frontend architecture and implementation for a high-performance SPA and Node.js BFF. Solve algorithmic, concurrency, and memory challenges, optimize performance and builds, drive observability, security, and CI/CD, mentor engineers, and collaborate with product, UX, and SRE teams to deliver resilient, distributed real-time collaborative features.
Top Skills: AksAngularBrowser ApisC# .NetCanvasDockerEcmascriptFrontend Test FrameworksGraphQLGrpcHTTPIacJava Spring BootJavaScriptKubernetesLong PollingMicro-FrontendsNode.jsPostgresReactReduxRedux-SagaRestSignalrSQL ServerTypescriptV8 EngineWeb WorkersWebsockets
Reposted 12 Days AgoSaved
Hybrid
New York, NY
235K-414K Annually
Senior level
235K-414K Annually
Senior level
Artificial Intelligence • Cloud • Machine Learning • Mobile • Software • Virtual Reality • App development
The Principal Software Engineer will design automated ad serving systems, lead technical direction, collaborate with teams, and mentor engineers.
Top Skills: Distributed SystemsSoftware Development
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Reposted 13 Days AgoSaved
Hybrid
New York, NY
170K-337K Annually
Senior level
170K-337K Annually
Senior level
Blockchain • Fintech • Payments • Consulting • Cryptocurrency • Cybersecurity • Quantum Computing
Lead the technical vision for Mastercard's corporate platforms, modernizing systems and data architecture, ensuring compliance and driving innovation.
Top Skills: AWSAzureClouderaDatabricksDockerJavaKubernetesMiddleware And IntegrationRest ApisSpark
5 Days AgoSaved
Easy Apply
Remote
New York, NY
Easy Apply
215K-240K Annually
Expert/Leader
215K-240K Annually
Expert/Leader
Information Technology • Cybersecurity
Lead technical architect and hands-on principal engineer for the SOC Experience team, building scalable investigation workflows, agentic LLM features, automation, remediation actions, and analyst tooling. Drive architecture, mentor engineers, prototype solutions, ensure reliability and observability, and partner with product, UX, and SOC stakeholders to turn operational problems into auditable, production-grade systems.
Top Skills: AgentsAWSAzureClaude CodeHotwireLlmsPostgresRedisRubyRuby On RailsStimulusTurbo
Reposted 19 Days AgoSaved
Hybrid
New York, NY
170K-337K Annually
Senior level
170K-337K Annually
Senior level
Blockchain • Fintech • Payments • Consulting • Cryptocurrency • Cybersecurity • Quantum Computing
The Principal Software Engineer, Senior Architect will lead architecture decisions modernizing Mastercard's Corporate Technology Solutions, focusing on data architecture, enterprise scale platforms, and ensuring technical excellence across teams.
Top Skills: AzureCloud Platforms (AwsContainers (DockerData Platforms (ClouderaDatabricks)JavaKubernetes)MiddlewareRest ApisSaas ArchitectureSpark)
Reposted 19 Days AgoSaved
Hybrid
New York, NY
170K-337K Annually
Senior level
170K-337K Annually
Senior level
Blockchain • Fintech • Payments • Consulting • Cryptocurrency • Cybersecurity • Quantum Computing
Lead enterprise data architecture for Mastercard, modernizing data platforms and ensuring compliance, security, and operational excellence in a hybrid cloud environment.
Top Skills: SparkAWSAzureData ArchitectureDatabricksDelta LakeFlinkGCPHybrid CloudKafkaNifiSnowflake
10 Days AgoSaved
Easy Apply
Remote
New York, NY
Easy Apply
215K-240K Annually
Expert/Leader
215K-240K Annually
Expert/Leader
Information Technology • Cybersecurity
Lead design, development, and delivery of mission-critical SIEM platform features. Define technical vision, own quality and uptime, mentor engineers, collaborate cross-functionally, build AI-assisted workflows, and drive performance, monitoring, and architecture decisions.
Top Skills: ActiverecordAi Coding AgentsCSSJavaScriptPostgresRuby On RailsSIEM
Reposted 10 Days AgoSaved
Easy Apply
Remote
New York, NY
Easy Apply
195K-270K Annually
Senior level
195K-270K Annually
Senior level
Artificial Intelligence • Fintech • Machine Learning • Social Impact • Software
Lead the architectural design and development of a new consumer credit product, focusing on backend systems, distributed services, and integrating AI tools. Mentor team members and influence product direction through engineering insights.
Top Skills: APIsAvroC#DatabasesJavaKafkaKinesisKotlinProtobufPythonRubySqs
11 Days AgoSaved
Remote
New York, NY
285K-385K Annually
Expert/Leader
285K-385K Annually
Expert/Leader
Artificial Intelligence • Cloud • Consumer Web • Productivity • Software • App development • Data Privacy
Lead long-term technical strategy and execution across multiple teams, architecting and evolving foundational frontend/backend systems and platforms at massive scale. Drive AI/ML adoption, solve ambiguous, high-impact problems, remain hands-on in critical system design and implementation, and align senior leaders on roadmaps and engineering standards.
Top Skills: Agentic FrameworksAIConcurrencyDatabasesDistributed SystemsFrontendLlm Based ApisMachine LearningMobileSearchStorage Systems
Reposted 12 Days AgoSaved
Easy Apply
Remote
New York, NY
Easy Apply
195K-270K Annually
Senior level
195K-270K Annually
Senior level
Artificial Intelligence • Fintech • Machine Learning • Social Impact • Software
The role involves building and optimizing a machine learning and simulation platform, supporting MLOps, model deployment, and infrastructure modernization, while mentoring engineers.
Top Skills: AWSDatabricksFastapiFlaskGrpcKafkaKotlinMetaflowMlflowPysparkPythonRedshiftSpark
13 Days AgoSaved
Easy Apply
Remote
New York, NY
Easy Apply
191K-264K Annually
Senior level
191K-264K Annually
Senior level
Artificial Intelligence • Fintech • Machine Learning • Social Impact • Software
Provide technical leadership for internal platforms and security automation supporting Upstart Bank. Lead architecture, design, and implementation of platform services, APIs, relational schemas, authentication and RBAC systems. Partner with risk, compliance, and operations stakeholders, mentor engineers, mitigate technical risks, and drive long-term platform strategy and engineering standards.
Top Skills: Next.JsNode.jsPrismaTypescript
Reposted 14 Days AgoSaved
Easy Apply
Remote
New York, NY
Easy Apply
186K-258K Annually
Senior level
186K-258K Annually
Senior level
Artificial Intelligence • Fintech • Machine Learning • Social Impact • Software
The Principal Software Engineer will define technical roadmaps, guide system architecture, mentor leaders, and drive product direction in Capital Supply operations.
Top Skills: AISoftware Engineering
20 Days AgoSaved
Remote
New York, NY
160K-175K Annually
Senior level
160K-175K Annually
Senior level
Enterprise Web • Fintech • Marketing Tech • Software
Lead and mentor an engineering team building GovIntel and GovChannel product capabilities. Own technical direction, design and deliver scalable SaaS features, APIs, integrations, and platform reliability. Partner with Product, QA, Cloud Ops, and stakeholders to prioritize work, drive CI/CD and observability practices, lead reviews and incident response, and apply AI-assisted tools to improve development speed and quality.
Top Skills: .NetAi-Assisted Development ToolsAngularAPIsAWSCi/CdCloud-NativeContainersDockerEntity FrameworkKubernetesSQL
2 Days AgoSaved
In-Office
New York, NY
274K-376K Annually
Expert/Leader
274K-376K Annually
Expert/Leader
Cloud
Lead design and implement proofs-of-concept, SDKs, and samples for new Auth0 products focused on identity for GenAI. Drive industry protocols and recommendations, research market opportunities, and shape product strategy while being hands-on in architecture and development.
Top Skills: A2AAuth0Auth0 FgaCloudDeveloper ToolingGenaiIdentityMcpSdks
2 Days AgoSaved
In-Office
New York, NY
197K-345K Annually
Expert/Leader
197K-345K Annually
Expert/Leader
Cloud • Software
Lead technical strategy and build scalable Salesforce and data integrations. Architect CRM-to-data-platform pipelines, enterprise data products, and AI-powered developer tools. Mentor engineers, define data quality and observability standards, and drive production troubleshooting and platform reliability across applications, integrations, and data services.
Top Skills: Agentic Ai Platforms (Claude CodeAirflowApexAPIsCdc PatternsCi/CdCloud-Native ServicesCursorCustomer 360Data 360Data CloudDatabricksEnterprise Data WarehousesEtl/EltEvent-Driven ArchitecturesGitGithub CopilotHerokuKafkaLightning PlatformMulesoftPythonRagSalesforceSemantic SearchSnowflakeSQLStreaming TechnologiesVector DatabasesWindsurf)
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