24 application security engineer jobs at 21 companies in New Castle, DE

PromotedHiringCafe
Founding Backend / Infra Engineer
Cupertino, CA, US
$160k-$300k/yr On-SiteFull Time
HiringCafe
HiringCafe: Building a 100× better job search engine to take on Indeed and LinkedIn.
Own the crawlers, pipelines, and infrastructure powering a real-time job search engine. Strong Node.js and Python fundamentals; bonus points for security and reverse-engineering chops.
Node.js, Python, Elasticsearch, Redis
1mo
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Application Security Integration Engineer
Malvern or Charlotte or Dallas or Fort Worth
HybridFull Time
Vanguard
Vanguard: Provides mutual funds, ETFs, and investment management services.
8+ YOE8+ years related experience, undergraduate degree or equivalent, expertise designing and implementing cloud security, troubleshooting complex security issues, developing audit methodologies, and mentoring junior staff.
2mo
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Application Security Engineer (REMOTE) (Anytown, PA, US, 19605)
Anytown, Pennsylvania, United States
$117k-$147k/yr RemoteFull Time
EnerSys
EnerSysNYSE: ENS: Global provider of industrial batteries and stored energy solutions.
5+ YOE5+ years in information security with 3+ years in application security, secure development, or DevSecOps; strong knowledge of OWASP and secure SDLC; hands-on with security testing tools; cloud security experience; ability to collaborate across teams.
Burp Suite, Fortify, Checkmarx, Veracode, ZAP, SAST, DAST, SCA, IaC scanning, Container security
3mo
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Sr. Security Engineer
Philadelphia, Pennsylvania, United States
HybridFull Time
Five Below
Five BelowNASDAQ: FIVE: Specialty value retailer selling products for five dollars or less.
Senior security engineer with cloud and application security focus; hands-on, able to design and operate security controls across cloud, CI/CD, and customer-facing systems.
WAF, CDN, API security, bot mitigation, Azure, AWS, CSPM, CNAPP, SAST, DAST, SCA, CI/CD, PowerShell, Python, Cloudflare, CrowdStrike, Snyk, GitHub Security, IAM, Vulnerability management, SIEM
1mo
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AI-Application Developer B
Philadelphia, Pennsylvania, United States
$62k-$75k/yr OnsiteFull Time
University of Pennsylvania
University of Pennsylvania: Provides Ivy League higher education and conducts advanced scientific research.
1+ YOEBachelor's degree and 1–2 years experience (or equivalent), develops and maintains application software and interfaces, provides application support, ensures data integrity and security, may manage small projects.
1mo
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AI-Application Developer B
Philadelphia, Pennsylvania, United States
$62k-$75k/yr OnsiteFull Time
University of Pennsylvania
University of Pennsylvania: Research university offering higher education and healthcare services.
1+ YOEBachelor's degree and 1–2 years experience; develops and maintains application software, translates requirements into technical solutions, administers applications, ensures data integrity/security, and may manage small projects.
2d
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Intermediate Cyber Security Engineer
Cedar Rapids or Denver or Philadelphia
$70k-$84k/yr HybridFull Time
Transamerica
TransamericaNYSE: AEG: Provides insurance, retirement solutions, and investment products to customers.
1+ YOE1+ years cyber security engineering experience; knowledge of application security, vulnerability management, SDLC, and security frameworks; bachelor’s in related field or equivalent; certifications desirable (OSCP,CISSP,CEH,Security+/CySA/CASP).
NIST CSF, SIEM, Rapid7, ServiceNow Vulnerability Response (VR), Synk, CrowdStrike, ServiceNow, JIRA
3d
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Distinguished Engineer - AI Security
Johnston or Pittsburgh or Irving or Phoenix or Franklin or Charlotte or Cleveland or Boston or Iselin or Philadelphia or Chicago
$175k-$250k/yr OnsiteFull Time
Citizens Financial Group
Citizens Financial GroupNYSE: CFG: Provides retail, commercial, and private banking services to customers.
10+ YOE10+ years engineering experience, strong AI/ML and security knowledge, hands-on Python, AWS, Linux, CI/CD experience, deep application and cloud security understanding, excellent communication and mentoring skills.
Python, AWS, Bash, Jenkins, CircleCI, GitHub Actions, Kubernetes, Linux
6d
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Cyber Security Engineer
Aberdeen, Maryland, United States
$85k-$130k/yr OnsiteFull Time
LufCo
LufCo: Provides specialized engineering and analytic services for defense missions.
3+ YOE3+ years as a cyber security engineer, bachelor’s in a technical discipline, TS/SCI with polygraph (US citizenship), RMF/SSP/ATO experience, STIG application on Linux/Windows, eMASS and cloud familiarity.
eMASS, STIGs, Linux, Windows, CI/CD
3mo
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Wireless Security Engineer - 5G/4G Applications SME
Philadelphia, Pennsylvania, United States
OnsiteFull Time
Tech Mahindra
Tech MahindraNational Stock Exchange of India: TECHM: Global provider of information technology and business consulting services.
3+ YOE3+ years in wireless system security testing or development; 4G/5G app and data security; strong analysis and writing; able to work independently; strong problem solving.
2mo
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Lead Application & Product Architect, Tax
Coppell or Cary or Tampa or Clayton or Austin or Philadelphia or Riverwoods or Houston or Wichita
$108k-$188k/yr HybridFull Time
Wolters Kluwer
Wolters KluwerEuronext Amsterdam: WKL: Provides professional information and software solutions for specialized industries.
10+ YOE10+ years software engineering with 5+ years architecture for SaaS; strong .NET, Kafka, Temporal; leadership; modernization; cloud; security.
.NET, C#, ASP.NET Core, Kafka, Confluent Cloud, Temporal, VS Code, GitHub Copilot, Azure, AWS
2mo
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Application/Agentic AI Engineer
Aberdeen, Maryland, United States
HybridFull Time
NextGen Federal Systems
NextGen Federal Systems: Provides advanced software engineering and mission support to federal agencies.
3+ YOE3+ years in software engineering or AI integration; BS in CS/Software/ Data/IS; proficient in Python/JS/TS/Java; API/microservice experience; LLMs and AI orchestration familiarity; cloud-native with Docker/Kubernetes; SDLC/DevSecOps/CI/CD; Git; strong problem-solving; active security clearance.
Python, JavaScript, TypeScript, Java, APIs, Microservices, Data services, Docker, Kubernetes, Git, CI/CD, SDLC, DevSecOps
1mo
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Data Application Specialist
Philadelphia, Pennsylvania, United States
$80k-$95k/yr OnsiteFull Time
PMHCC
PMHCC: Provides administrative and management services for public behavioral health programs.
3+ YOE3+ years in data management/engineering; strong SQL and Python skills; experience with relational databases, ETL/pipeline development, REST APIs, Linux, Git, and data security (HIPAA).
SQL, Python, pandas, NumPy, SQLAIchemy, pyodbc, pip, venv, Git, GitHub, T-SQL, Microsoft SQL Server, SSMS, SQL Agent, PostgreSQL, MySQL, EC2, ECS, RDS, S3, Lambda, CloudWatch, Terraform, CloudFormation, GitHub Actions, Linux, bash, systemd, cron, ssh, curl, HL-7 2.5.1, ODBC
1d
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Cloud Development Engineer
Aberdeen Proving Ground, Maryland, United States
$90k-$190k/yr HybridFull Time
CACI International
CACI InternationalNYSE: CACI: Provides information technology and engineering services for government agencies.
Experience developing Java enterprise applications, Azure cloud deployment and sustainment, containerization, RHEL/Ubuntu/Windows deployment, CompTIA Security+, active DoD Secret clearance, and ability to perform technical presentations.
Azure, RHEL, Ubuntu, Windows, Java, Quarkus, Jakarta EE, Spring, Docker, Kubernetes, AWS
3mo
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Applications Engineer
Uniontown or Long Island City or Fishers or Wilmington or Fair Lawn or Elmsford
$69k-$90k/yr OnsiteFull Time
Securitas Technology
Securitas TechnologyNasdaq Stockholm: SECU B: Provides integrated electronic security and fire protection solutions.
5+ YOE5+ years estimating experience in fire alarm/security/low-voltage; ability to analyze drawings, prepare detailed cost estimates and bid proposals; strong knowledge of NFPA and NEC; experience with major manufacturers; proficiency with MS Office, Acrobat, Visio, DWG Writer, BigMachines, and Salesforce.
Microsoft Office, Adobe Acrobat, Microsoft Visio, DWG Writer, BigMachines, Salesforce
3d
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Engineer
Malvern, Pennsylvania, United States
$120k-$130k/yr OnsiteFull Time
Tata Consultancy Services
Tata Consultancy ServicesNational Stock Exchange of India: TCS: Global provider of IT services, consulting, and business solutions.
10+ YOE10+ years experience building cloud-native AWS microservices and serverless applications using Java/Go, IaC (CloudFormation), NoSQL/relational databases, security architecture, and DevOps/SRE practices.
AWS, Eventbridge, Lambda, Step Function, SQS, Glue, DynamoDB, Postgres, S3, Athena, AWS CloudFormation, Java, Go
2mo
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Software Applications Engineer
Aberdeen Proving Ground, Maryland, United States
$115k-$130k/yr HybridFull Time
Entarian
Entarian: Provides mission-critical engineering and technology solutions for government agencies.
5+ YOEDoD Secret clearance; BS in computer science or related field; 5+ years in software applications engineering; strong .NET/C#, MudBlazor, HTML/CSS/JavaScript; API development; Azure/DevOps; security+; hybrid role near Aberdeen Proving Ground, MD.
C#, .NET, MudBlazor, HTML, CSS, JavaScript, OpenXml, ASP.NET Core, Entity Framework Core, SQL, Azure, DevOps, OpenID Connect, OAuth 2.0, Microsoft Entra ID
2mo
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Sr. Software Engineer
Philadelphia or New Jersey or Delaware or New York or Maryland or Florida or South Carolina or Texas or Virginia or Georgia
HybridFull Time
FreedomPay: A fast-growing payments and commerce technology delivering secure solutions globally.
7+ YOE7+ years in application development and testing; strong web, SPA, and backend skills; security-focused; Agile experience; strong English communication.
.NET, SQL Server, MVC, jQuery, React, Angular, Redux, TypeScript, JWT, Git, HTML, CSS, Websockets
2d
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Lead Software Engineer - Python/React/AWS/AI
Wilmington, Delaware, United States
OnsiteFull Time
JPMorgan Chase
JPMorgan ChaseNYSE: JPM: Global financial services firm providing banking and investment solutions.
5+ YOE5+ years software engineering experience with system design, application development, cloud native and AI-assisted development; advanced Python/Java/React/AWS skills; CI/CD and automation proficiency; strong security and responsible AI practices.
Python, Java, React, AWS, AI, CI/CD
3w
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IT Specialist (APPSW) "Software Engineer", GS-2210-15 FPL GS-15 (Direct Hire) (Open Continuous)
San Francisco or Denver or Washington or Atlanta or Chicago or Salt Lake City or Seattle or Phoenix or Los Angeles or Miami or Indianapolis or New Orleans or Boston or Minneapolis or Kansas City or Albuquerque or New York or Oklahoma City or Portland or Austin or Philadelphia or Dallas
$148k-$197k/yr OnsiteFull Time
Federal Student Aid
Federal Student Aid: Administers federal student loans and financial aid programs.
1+ YOESenior software engineering experience leading design and delivery of large-scale, secure applications; must meet GS-15 specialized experience equivalent to GS-14; US citizenship and background check required.
2w
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Senior Java Developer/AWS
Mount Laurel, New Jersey, United States
$68k-$132k/yr HybridFull Time
Cognizant
CognizantNASDAQ: CTSH: Provides IT consulting and technology services to global enterprises.
8+ YOE8+ years experience building scalable applications with Java, Spring Boot, AWS, JavaScript, and MySQL; strong SDLC/Agile experience, secure coding, problem-solving, database optimization, and Cards & Payments domain knowledge preferred. Must be US-authorized to work without sponsorship.
Java, Spring Boot, AWS, JavaScript, SQL, MySQL