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42,798 senior software engineer jobs at 8,282 companies in United States

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Senior Software Engineer
United States
RemoteFull Time
Rezdy
Rezdy: Private Australian SaaS booking and distribution platform serving tour, activity, and attraction operators.
Senior or Staff level software engineer in product-focused teams with autonomy to own end-to-end features.
AI coding tools
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Senior Software Engineer
Littleton, Colorado, United States
$120k-$150k/yr OnsiteFull Time
OASYS, INC.
OASYS, INC.: Employee-owned technology services contractor providing software, cybersecurity, and systems-engineering solutions to federal government and DoD clients.
Full-time Senior Software Engineer with C/C++ experience; US citizen; security clearance required.
C, C++
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Senior Software Engineer
Virginia or District of Columbia or Maryland
OnsiteFull Time
Serco Group
Serco GroupLondon Stock Exchange: SRP: Multinational provider of essential public services to governments.
5+ YOESenior Java software engineer with 5+ years' experience in Linux environments, security-aware development, and data processing pipelines.
Java, Linux, JAX-RS, CDI, Jakarta EE, Servlet, JSON, XML, Git, JIRA, Docker, Kubernetes, TCP/IP, HTTP, TLS, Database
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Senior Software Engineer
Noblesville, Indiana, United States
$97k-$136k/yr HybridFull Time
Trane Technologies
Trane TechnologiesNYSE: TT: Global climate innovator for buildings, homes, and transportation.
5+ YOE5+ years embedded software development; 2+ years in senior/lead capacity; experience in Qt/C++, Python, Yocto Linux, and embedded cybersecurity; ability to mentor engineers; BS in CS/Software Engineering (MS preferred).
Python, Qt/C++, Qt Quick/QML, Yocto Linux, CANbus, Modbus TCP, WebSockets, MQTT
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Senior Software Engineer
United States or United Kingdom
$130k-$142k/yr RemoteFull Time
Public Library of Science
Public Library of Science: PLOS is a nonprofit open-access scientific publisher serving researchers, institutions, funders, and the public.
Senior software engineer with full-stack experience; cloud native architectures; Python/JavaScript; cloud platforms; strong Agile experience.
Google Cloud, Python, React, Kubernetes, BigQuery
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Senior Software Engineer
Seattle, Washington, United States
$170k-$210k/yr OnsiteFull Time
Avante
Avante: N AI-native employee-benefits intelligence platform serving employers with benefits guidance, analytics, and cost insights.
Senior Software Engineer with production code across TypeScript stack; strong design, reviews, mentoring; capable of end-to-end feature delivery.
TypeScript, Java, C#, Python
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Senior Software Engineer
Colorado Springs, Colorado, United States
OnsiteFull Time
NextGen Federal Systems
NextGen Federal Systems: Private U.S. technology and professional-services provider delivering software, AI/ML, digital engineering, and mission support to federal agencies.
5+ YOESenior software engineer with 5+ years in aerospace/defense, STK experience, TS/SCI eligibility, strong Python/Flask, React, API integration, Docker, cloud.
STK, STK Engine, STK Components, Cesium, Python, Flask, React, REST, Git, Docker, Cloud, MBSE, Digital Thread
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Senior Software Engineer
South Windsor or Charlotte
HybridFull Time
RCN Capital
RCN Capital: Private direct lender providing fix-and-flip, DSCR, multifamily, and construction financing to real estate investors and wholesale partners.
7+ YOESenior software engineer with 7+ years, lead/architect, full stack in .NET 10, React, TypeScript, Azure, PostgreSQL/CosmosDB; AI/GenAI, offshore teams.
React, TypeScript, Redux, Zustand, Tailwind CSS, C#, .NET 10, Entity Framework Core, Azure, Azure DevOps, GitHub Actions, PostgreSQL, CosmosDB, LangChain, Semantic Kernel, Docker, Kubernetes
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Senior Software Engineer (Infrastructure)
New York, New York, United States
$190k-$250k/yr OnsiteFull Time
GovDash
GovDash: Private AI platform helping government contractors win and manage government contracts.
Senior software engineer with distributed systems, Kubernetes, and IaC expertise; strong ownership and communication.
Kubernetes, Pulumi, Terraform
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Senior Software Engineer
Sunnyvale, California, United States
$160k-$185k/yr OnsiteFull Time
LTA Research
LTA Research: Private aerospace R&D building and flying experimental and certified airships for passenger and cargo transport.
7+ YOE7-5 years of experience in a similar Senior Software Engineer role; proficient in RTOS, embedded systems, C#, C++, Python; GitLab CI/CD; strong communication.
C#, C++, RTOS, Python, Scripting, GitLab CI/CD
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Senior Software Engineer
South Windsor or Charlotte
HybridFull Time
RCN Capital
RCN Capital: Private direct lender providing fix-and-flip, DSCR, multifamily, and construction financing to real estate investors and wholesale partners.
7+ YOE7+ years software development; senior/lead engineer; full stack with .NET, React/TypeScript; AI/GenAI; Azure; PostgreSQL/CosmosDB; cloud-native; offshore collaboration.
React, TypeScript, Redux, Zustand, Tailwind CSS, C#, .NET 10, .NET Core, Entity Framework Core, Azure Functions, App Services, Service Bus, Azure DevOps, GitHub Actions, PostgreSQL, CosmosDB, LangChain, Semantic Kernel, Docker, Kubernetes
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Senior Software Engineer, Developer Experience
Bellevue or Livingston or New York or San Francisco or Sunnyvale
$165k-$242k/yr HybridFull Time
CoreWeave
CoreWeaveNasdaq: CRWV: Specialized cloud provider for large-scale AI and machine learning.
7+ YOESenior software engineer with 7+ years in production platforms, distributed systems, and developer tooling.
Go, Python, Kubernetes, GitHub Actions, Buildkite, Bazel, Artifactory, MCP
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Senior Software Engineer
San Francisco, California, United States
HybridFull Time
Scope
Scope: Applied AI consultancy building custom production-grade AI systems and agents for enterprise workflows.
6+ YOESenior software engineer with 6+ years of production experience across frontend and backend; proficient in Python, TypeScript, React/Next.js; Docker/Kubernetes on cloud; CI/CD; and LLM frameworks.
Python, TypeScript, React, Next.js, Docker, Kubernetes, Terraform, CI/CD, LangChain, LangGraph, Anthropic SDK, OpenAI SDK, MCP, GCP, AWS
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Senior Software Engineer
Indianapolis, Indiana, United States
OnsiteFull Time
Cybermedia Technologies
Cybermedia Technologies: Private U.S. federal IT services contractor modernizing infrastructure, securing systems, and delivering workforce training.
5+ YOESenior software engineer with 5–8 years of hands-on experience in mainframe environments; expertise in Oracle, COGNOS, JavaScript or Broadcom Endevor; DoD/DFAS experience; active Secret clearance.
Oracle, COGNOS, JavaScript, Broadcom Endevor, IDMS, COBOL, JCL, Assembler, REXX, MQ Series, z/OS, TSO, ISPF, SDSF, VBA, MS Access, MS Excel
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Senior Software Engineer, Payments
New York, New York, United States
$175k-$195k/yr OnsiteFull Time
Order.co
Order.co: AI-powered B2B procurement platform helping businesses manage purchasing, approvals, payments, and reporting.
Senior software engineer with payments experience, Ruby on Rails, PostgreSQL, security, observability, and end-to-end ownership.
Ruby, Ruby on Rails, PostgreSQL, SQL, AWS, CI/CD, REST/GraphQL, AI-assisted development tools
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Senior Software Engineer
Boston, Massachusetts, United States
OnsiteFull Time
Tive
Tive: Tive is a private supply-chain technology providing shipment-tracking hardware, cloud software, and monitoring services to global shippers.
Senior software engineer with experience in big data streaming, multi-tier web apps, AWS hosting/DevOps, and strong design skills; proficient in server-side languages and databases; Agile/Scrum experience; collaborative mindset.
AWS, AWS Kinesis, Apache Kafka, ASP.NET Core, Angular, Docker, Kubernetes, SQL Server, PostgreSQL, MongoDB, HTML, CSS, JavaScript, TypeScript, Python, C#
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Senior Software Engineer
Tampa, Florida, United States
OnsiteFull Time
Ascension Federal Services
Ascension Federal Services: Provides IT, engineering, and project management services to federal agencies.
5+ YOESenior software engineer with 5+ years of experience, SECRET clearance, BS in Computer Science or related field, proficient in Java/Python/C++, Agile/Scrum, strong problem solving and communication, able to work independently or in a team.
Java, Python, C++
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Senior Software Engineer, Infrastructure
United States
$160k-$210k/yr RemoteFull Time
Cribl
Cribl: Telemetry infrastructure software helping enterprise IT and security teams collect, process, analyze, and manage data.
Senior software engineer focused on infrastructure, cloud, distributed systems; proficient with JavaScript/Node.js/TypeScript, Linux, Terraform; comfortable with on-call duties.
JavaScript, Node.js, TypeScript, Linux, Terraform
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Senior Software Engineer, Lab Software
Cambridge, Massachusetts, United States
$144k-$210k/yr OnsiteFull Time
Lila Sciences
Lila Sciences: Builds AI and autonomous labs for scientific discovery.
5+ YOESenior backend-focused software engineer with 5-8+ years of experience building large-scale systems; full-stack development; Python, FastAPI, React, TS, SQL/NoSQL; cloud, AWS, Kubernetes; collaboration with scientists.
React, TypeScript, Tailwind, FastAPI, SQL, NoSQL, Python, Pydantic, AWS, Kubernetes, Terraform, CloudFormation, GitHub Actions, Airflow, Prefect, Temporal, Dagster
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Senior Software Engineer, Cloud
Atlanta or Austin or San Francisco or Seattle
$185k-$305k/yr RemoteFull Time
Ditto
Ditto: Private technology providing edge-native mobile databases and peer-to-peer synchronization for enterprise applications.
6+ YOE6+ years of software engineering; senior or staff level; experience at scale; skilled in Rust and Kubernetes; cloud-native architectures; US-based remote work.
Rust, Kubernetes, AWS, Azure, GCP, C++, Go
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