39 senior test engineer jobs at 22 companies in Delaware

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Senior Software Engineer Test
California or New Jersey or New York or Washington or Hawaii or Alaska or Maryland or Connecticut or Rhode Island or Massachusetts or Nevada or Oregon or Arizona or Colorado or Wyoming or Texas or North Dakota or Minnesota or Missouri or Illinois or Wisconsin or Florida or Georgia or Michigan or Ohio or Virginia or Pennsylvania or Delaware or Vermont or New Hampshire or Maine or Utah or Idaho or Montana or New Mexico or South Dakota or Nebraska or Kansas or Oklahoma or Iowa or Arkansas or Louisiana or Mississippi or Alabama or Tennessee or Kentucky or Indiana or South Carolina or North Carolina or West Virginia or United States
$94k-$179k/yr RemoteFull Time
Mercury Insurance
Mercury InsuranceNYSE: MCY: Provider of personal and commercial insurance coverage.
5+ YOEBachelor's in CS or related (or equivalent experience), 5+ years industry experience, 3+ years Java/Python and automation/framework development, CI/CD, containerization, cloud, performance and API testing experience.
Jenkins, GitHub, JMeter, LoadRunner, Selenium, TestNG, JUnit, Appium, Docker, Kubernetes, AWS, Google Cloud, Azure, Postman, SoapUI, Curl, Insomnia, Java, Python, JavaScript
1w
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Software Test Engineering Manager
Wilmington, Delaware, United States
$150k-$281k/yr HybridFull Time
Agilent Technologies
Agilent TechnologiesNew York Stock Exchange: A: Providing instruments, software, and consumables for laboratory scientific discovery.
8+ YOE3+ MgmtBachelor's degree or equivalent, 8+ years in software testing/quality engineering, 3+ years managing test/QA teams, Agile experience, test strategy and automation expertise, stakeholder communication, AI in testing familiarity.
2w
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Senior Packaging Engineer
Wilmington, Delaware, United States
$111k-$173k/yr OnsiteFull Time
Chemours
ChemoursNYSE: CC: Manufactures specialty chemicals, refrigerants, and high-performance industrial fluoropolymers.
10+ YOEBS in Engineering and ≥10 years chemical packaging engineering experience; working knowledge of UN/DOT/ADR regulations; package testing, quality investigations, and sustainability experience; strong communication skills.
2mo
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R&D Test Engineering Manager
New Castle, Delaware, United States
OnsiteFull Time
Waters Corporation
Waters CorporationNYSE: WAT: Provider of analytical laboratory instruments and software.
5+ YOE3+ MgmtLead system-level verification and validation for electro-mechanical instrumentation; 5+ years system test/V&V experience, 3+ years management, bachelor’s or master’s in engineering, test automation and integration experience.
test automation tools, data acquisition systems, defect tracking systems
11h
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Software Engineer (Test Automation)
Alabama or Arizona or California or Colorado or Connecticut or District of Columbia or Delaware or Florida or Georgia or Illinois or Louisiana or Maine or Maryland or Massachusetts or Michigan or Minnesota or Missouri or Nevada or North Carolina or New Jersey or New York or Ohio or Oklahoma or Oregon or Pennsylvania or Rhode Island or South Carolina or Texas or Tennessee or Utah or Virginia or Washington or Wisconsin
$128k-$136k/yr RemoteFull Time
Nava
Nava: Consultancy providing digital modernization services to government agencies.
8+ YOE8+ years testing experience, 5+ years coding in Javascript, test automation strategy and execution, experience with enterprise test plans and defect tracking, security and performance testing knowledge.
Javascript, Jira, Github, Selenium, Cypress, Playwright, JUnit
1mo
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Senior Software Engineer
United States or Connecticut or South Carolina or Pennsylvania or New Hampshire or Hawaii or California or Alaska or Washington or Oregon or Texas or Alabama or Mississippi or Tennessee or Illinois or Wisconsin or Louisiana or Arkansas or Missouri or Iowa or Minnesota or Oklahoma or Kansas or Nebraska or South Dakota or North Dakota or Colorado or Wyoming or Idaho or Montana or Utah or Vermont or North Carolina or Massachusetts or Georgia or Rhode Island or New York or Maryland or Delaware or Virginia or Ohio or New Jersey or Maine
$148k-$185k/yr RemoteFull Time
Worksoft: Automation platform for enterprise business process testing and discovery.
10+ YOEBachelor's in CS/Engineering or 15+ years related experience; 10+ years Windows OO development; strong C#/.NET skills; WinForms/WPF experience; problem-solving, troubleshooting, and customer-facing communication skills; familiarity with CI/CD and test automation preferred.
C#, .NET, .NET Framework, VB.NET, C++, Win32, WinForms, WPF, SQL, Web Services, WCF, COM, SAML, OAuth, Machine Learning, Deep Learning, OCR, Image Processing, SAP GUI, WebExtensions, Java, Oracle Forms, Mainframe, Acrobat, Email, UIA, MSAA, Applitools, SoapUI, Postman, Perfecto, Microsoft Office, Silverlight, macOS, Cocoa, Swift, Xcode, Mono, Xamarin, MAUI, Jenkins, Groovy, Bash, Z Shell, Batch, PowerShell, NANT, MSBuild, Git
1mo
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Reliability Engineer — Advanced Thermal Management
Saxonburg or Newark or Dallas
$115k-$160k/yr OnsiteFull Time
Coherent
CoherentNYSE: COHR: Manufactures lasers, engineered materials, and optical networking components.
5+ YOE5+ years reliability engineering experience in semiconductor packaging, electronics cooling, or related fields; BS/MS in engineering or equivalent; experience with accelerated life testing, failure analysis, and industry reliability standards.
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Commissioning Engineer
California or Arizona or Arkansas or Colorado or Connecticut or Delaware or Florida or Georgia or Hawaii or Idaho or Illinois or Indiana or Iowa or Kansas or Kentucky or Louisiana or Maine or Maryland or Massachusetts or Michigan or Minnesota or Mississippi or Missouri or Montana or Nebraska or Nevada or New Hampshire or New Jersey or New Mexico or New York or North Carolina or North Dakota or Ohio or Oklahoma or Oregon or Pennsylvania or Rhode Island or South Carolina or South Dakota or Tennessee or Utah or Vermont or Virginia or Washington or West Virginia or Wisconsin or Wyoming or Texas or Alaska or United States
$116k-$142k/yr RemoteFull Time
SOLV Energy
SOLV EnergyNasdaq: MWH: Builds and maintains utility-scale solar and energy storage infrastructure.
8+ YOEBachelor’s in electrical engineering or equivalent; 8+ years testing/commissioning HV substations, BESS, and utility-scale PV; 3–4 years high-voltage switching; NETA certification (Level II–IV); experience with harmonic analyzers and power quality; strong communication and safety record.
harmonic analyzers, power quality monitoring equipment
3mo
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Senior Relay Technician - DE/PA Region
Philadelphia or Wilmington
OnsiteFull Time
LS Power
LS Power: Develops and operates North American power and energy infrastructure.
7+ YOESenior relay technician with 7+ years in electrical utility or testing services; certification in relay/substation tech; strong knowledge of protective relaying, SCADA, metering; willing to travel regionally.
SCADA, Relays, Test equipment, GIS, SF6
1w
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Senior Android Engineer
Alabama or Arkansas or Arizona or California or Colorado or Connecticut or Delaware or Florida or Georgia or Illinois or Indiana or Kentucky or Louisiana or Maryland or Michigan or Minnesota or Missouri or North Carolina or New Hampshire or New Jersey or New York or Ohio or Oregon or Pennsylvania or South Carolina or Tennessee or Texas or Utah or Virginia or Vermont or Washington
RemoteFull Time
ServiceTrade
ServiceTrade: Software platform for commercial mechanical and fire contractors.
5+ YOE5+ years Android development with Kotlin, Jetpack Compose, coroutines, Flow, DI, MVVM, Room, testing, CI/CD, and offline-first sync experience; strong collaboration and communication skills.
Kotlin, Jetpack Compose, coroutines, Flow, Android Studio, Room, WorkManager, JUnit, MockK, Turbine, Crashlytics, Kibana, Pendo, Firebase Remote Config, Gradle, Dagger 2, Google Play Store, Ktor, Retrofit, Firebase, GitHub Actions, Stripe, Stripe Terminal, RxJava, Claude, Cursor, MVVM
1mo
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Lead Design Assurance Engineer
Newark or Marlborough
$119k-$187k/yr OnsiteFull Time
Hologic
HologicNASDAQ: HOLX: Develops medical technology for women's healthcare and diagnostics.
5+ YOEBachelor's in engineering required (Master's preferred); 8+ years (BS) or 5+ years (MS) medical device experience; expertise in design assurance, risk management, V&V, test validation, and global regulatory standards.
1w
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Senior Mobile Developer
Utah or Wisconsin or Alaska or Arkansas or Washington or Arizona or Virginia or Alabama or Texas or Pennsylvania or Oregon or Oklahoma or Ohio or Nevada or Nebraska or Montana or Mississippi or Minnesota or Michigan or Massachusetts or Maryland or Maine or Louisiana or Kansas or Iowa or Indiana or Idaho or Florida or Delaware or Connecticut or Missouri or Colorado or California or Wyoming
$125k-$135k/yr RemoteFull Time
Harris Computer
Harris Computer: Provides mission-critical vertical market software and service solutions.
8+ YOEExpertise in Kotlin and Swift, modern mobile UI frameworks, mobile architectures and DI, REST API integration, mobile testing, CI/CD tooling, AI-assisted development experience, bachelor's or equivalent, 8+ years software development.
Kotlin, Swift, Jetpack Compose, SwiftUI, The Composable Architecture, MVVM, Koin, Retrofit, OkHttp, URLSession, JUnit, Mockito, Robolectric, Espresso, Compose UI test, XCTest, XCUITest, Gradle, Swift Package Manager, Bitrise, Fastlane, GitHub Copilot, Claude, Cursor, ChatGPT
3w
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Electrical, Instrumentation & Controls Engineer
New Castle, Delaware, United States
$95k-$115k/yr OnsiteFull Time
Kuehne Company
Kuehne Company: Produces bleach and caustic soda for water treatment systems.
5+ YOEBachelor's in electrical field, 5+ years engineering/project management experience preferred; experience with medium/low voltage systems, AutoCAD/AutoCAD Electrical, DCS/PLC/HMI/SCADA, PSM; must pass drug test and TWIC background check and have a valid driver's license.
Microsoft Office Suite, AutoCAD Electrical, AutoCAD, DCS, PLC, HMI, SCADA, CMMS, Process Safety Management (PSM)
1mo
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Senior Android Developer – Banking Applications
Wilmington, Delaware, United States
$107k-$178k/yr HybridFull Time
M&T Bank
M&T BankNYSE: MTB: Provides retail, commercial, and wealth management banking services.
3+ YOE5+ years Android development with Java/Kotlin; banking/fintech experience; secure mobile development; testing frameworks; collaborative team player.
Java, Kotlin, Android, Jetpack Compose, Espresso, JUnit, Mockito, CI/CD, DevOps, Secure coding
1mo
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Senior Manager of Operations
New Castle, Delaware, United States
$134k-$223k/yr OnsiteFull Time
Waters Corporation
Waters CorporationNYSE: WAT: Provides analytical laboratory instruments, software, and consumables.
10+ YOE10+ MgmtOversee assembly and test operations with lean manufacturing, manage ~90 employees, drive safety and productivity, and collaborate with NPI and contract manufacturers.
SAP, Microsoft Office
6d
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Drupal Backend Engineer, (Consultant, Engineering & Technical Services)
Baltimore or Alabama or California or Delaware or District of Columbia or Florida or Georgia or Maryland or New Jersey or New York or North Carolina or Pennsylvania or South Carolina or Tennessee or Texas or Virginia or West Virginia
$96k-$133k/yr RemoteFull Time
Fearless
Fearless: Digital services firm delivering IT solutions for government agencies.
5+ YOE5+ years Drupal development with Drupal 11, ability to build custom modules/APIs, security and performance remediation, experience with DDEV/Docker, testing (Cypress, PHPUnit), Git workflows, and ability to obtain Public Trust clearance.
Drupal, DDEV, Docker, Xdebug, Cypress, PHPUnit, Git, GitHub Copilot, VS Code, PHPStorm, Jira, Confluence, Slack, Zoom, Microsoft Teams, Twig
2d
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Senior Full Stack Software Development Engineer
Texas or Arkansas or Idaho or Georgia or Montana or Iowa or Wisconsin or Oregon or Washington or New York or District of Columbia or Connecticut or Nebraska or Rhode Island or Tennessee or Kentucky or Ohio or West Virginia or Maryland or Massachusetts or South Carolina or Missouri or Utah or Arizona or South Dakota or Pennsylvania or New Hampshire or Vermont or Minnesota or New Mexico or Michigan or California or Maine or North Dakota or Kansas or Indiana or New Jersey or Nevada or Louisiana or Mississippi or Oklahoma or Alabama or Virginia or Illinois or North Carolina or Colorado or Florida or Wyoming or Delaware
$83k-$222k/yr RemoteFull Time
CVS Health
CVS HealthNYSE: CVS: Provides retail pharmacy, health insurance, and pharmacy benefit management services.
5+ YOE5+ years building production full-stack apps with React (TypeScript) and Python,REST/gRPC APIs, Docker and CI/CD, familiarity with Snowflake/Kafka, strong testing and observability skills.
React (TypeScript), Python, .NET, gRPC, REST, Kafka, Snowflake, Terraform, Claude AI, MCPs, Docker, Microsoft Azure DevOps, GitHub, SQL Server, Postgres, DBT, MediatR, JWT, Okta
1mo
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Software Engineer III, Data Product
United States or Delaware or Nevada or Ohio or Oregon or Hawaii or New Mexico or West Virginia or Ireland
$134k-$181k/yr RemoteFull Time
Shippo
Shippo: Provides a shipping and logistics platform and APIs to help businesses manage carrier connectivity and shipping workflows.
6+ YOE6+ years professional software engineering experience, strong Python and FastAPI backend skills, production experience with Kafka, PostgreSQL, and React, solid testing and observability practices, and experience shipping full-stack features.
Python, FastAPI, Kafka, PostgreSQL, React, Claude, Cursor, Rippling
1w
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Applications Engineer
Reno or New Jersey or New Hampshire or Nebraska or North Dakota or North Carolina or Montana or Mississippi or Missouri or Minnesota or Maine or Maryland or Massachusetts or Louisiana or Kentucky or Kansas or Indiana or Illinois or Idaho or Iowa or Hawaii or Georgia or Florida or Delaware or District of Columbia or Wyoming or West Virginia or Connecticut or Wisconsin or Colorado or Washington or Vermont or Virginia or California or Utah or Arizona or Arkansas or Texas or Alabama or Tennessee or South Dakota or Alaska or South Carolina or Rhode Island or Pennsylvania or Oregon or Oklahoma or Ohio or Michigan or New York or Nevada or New Mexico
$88k-$115k/yr OnsiteFull Time
Arrow Electronics
Arrow ElectronicsNYSE: ARW: Distributes electronic components and enterprise computing solutions globally.
5+ YOE5+ years software development experience (or equivalent), bachelor\u0002s degree preferred, proficiency across SDLC, coding, testing, debugging, problem solving, and ability to work with minimal supervision.
1mo
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Lead Software Engineer -AI
Columbus or Wilmington
OnsiteFull Time
JPMorgan Chase
JPMorgan ChaseNYSE: JPM: Global financial services firm providing banking and investment solutions.
7+ YOE7+ years applied software engineering experience; strong system design, application development, testing, and operational stability; proficient in Python/TypeScript; experience with agent frameworks, LLM APIs, cloud-native systems, and evaluation/observability for AI agents.
Python, TypeScript, LangChain, LlamaIndex, AutoGen, CrewAI, Cloud Foundry, GKP, Jules CI/CD, TrueCD, Sophia auth, LLM APIs