9 application security engineer jobs at 9 companies in Fort Atkinson, WI

2w
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Cybersecurity Application Security Engineer
Centennial or Lincoln or Madison or Sidney
$90k-$125k/yr HybridFull Time
Nelnet
NelnetNYSE: NNI: Provides student loan servicing and educational payment processing solutions.
2+ YOERequires 2–4 years of application security experience, secure code review, threat modeling, SAST/SCA/DAST, penetration testing, CI/CD integration, scripting, AI/LLM security, and strong communication skills.
Java, JavaScript, TypeScript, C#, PHP, STRIDE, Python, Bash, Node, SAST, SCA, DAST, CI/CD, OWASP Top 10, RAG
1mo
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Cybersecurity Engineer (Application Security focus)
West Bend or United States
$100k-$125k/yr HybridFull Time
Delta Defense
Delta Defense: Provides operational support and insurance for the USCCA.
3+ YOE3+ years cybersecurity engineering experience with application, cloud, and infrastructure security; hands-on SAST/DAST/SCA, CI/CD, API and WAF work; scripting proficiency; knowledge of security frameworks and AI security risks.
Doppler, Semgrep, Snyk, Burp Suite, OWASP ZAP, Cloudflare, HashiCorp Vault, AWS, Google Cloud, DigitalOcean, Kubernetes, Python, JavaScript, PHP, Golang, Rust, PostgreSQL, Kafka, NeonDB, GitLab, Snowflake, dbt, Fivetran, Databricks, Tableau, Informatica, Kestra, EDR, SIEM, CASB, SWG, DLP, IDS/IPS, PAM
1mo
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Full-Stack & Mobile Application Developer
Beloit, Wisconsin, United States
OnsiteFull Time
Fairbanks Morse Defense
Fairbanks Morse Defense: American marine defense contractor designing, manufacturing, and servicing naval power, propulsion, and mission-critical systems for allied fleets.
3+ YOE3+ years full-stack experience with React, Python, Node.js, Azure, and .NET MAUI; experience with RAG, OCR, offline-first mobile apps, Azure Government Cloud, and secure production deployments.
Microsoft Azure Government Cloud, Azure OpenAI Service, React, Python, Node.js, .NET MAUI, Azure AI Vision, Azure Document Intelligence, Azure AI Search, Microsoft Project, Microsoft Semantic Kernel, LangChain, LangGraph, PouchDB, CouchDB, SQLite, Git, Docker, Blazor Hybrid, SCADA, HMI
1d
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Senior IT Security Engineer
Pleasant Prairie or Milwaukee or Waukegan or Glenview
OnsiteFull Time
Uline
Uline: North America's leading distributor of shipping and packaging materials.
8+ YOEBachelor’s degree in information technology or related field, 8+ years in an enterprise IT environment, and enterprise applications and security tools experience. CISSP or Security+ preferred.
1d
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Senior Infrastructure Engineer
Middleton, Wisconsin, United States
$129k-$180k/yr HybridFull Time
Capitol Indemnity Corporation
Capitol Indemnity Corporation: Berkshire Hathaway insurer for small and mid-sized U.S. businesses offering casualty, professional liability, surety, and fidelity coverage.
8+ YOEMaster’s degree in computer science or related field and 8 years of systems administration and network engineering experience, including enterprise applications, automation, networking, servers, cloud, security, and databases.
Microsoft Windows, Linux, VMware, Citrix, IIS, Office365, Microsoft Exchange, Oracle, SQL
3d
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Senior DevSecOps Engineer
Milwaukee, Wisconsin, United States
$119k-$178k/yr HybridFull Time
Northwestern Mutual
Northwestern Mutual: Provides life insurance and financial planning services to individuals.
5+ YOEBachelor's degree or equivalent experience; 4+ years with cloud technologies and CI/CD pipelines; 5+ years in development, infrastructure, or cybersecurity; application and cloud security testing experience required.
Python, JavaScript, AWS, GitLab CI, Kubernetes, SAST, DAST, SCA, CSPM
2mo
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Senior Web/App Engineer
Janesville, Wisconsin, United States
$118k-$142k/yr OnsiteFull Time
Blain's Farm & Fleet
Blain's Farm & Fleet: Family-owned retailer serving the Midwest with farm, home, and automotive goods.
5+ YOE5+ years software development experience; proficiency in Java, C#, Python, JavaScript; strong system architecture, design patterns, data modeling, cloud and application security knowledge; bachelor's in CS/Engineering preferred; experience with SaaS platforms (Adobe, Oracle) preferred.
Java, C#, Python, JavaScript, Adobe, Oracle
1w
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Technical Architect – Integrated Eligibility
Austin or Milwaukee or Dallas or Columbus or Kirkland or Cincinnati or New York City or Cleveland or Oklahoma City or Albany or Chicago or St. Petersburg or Hartford or Pittsburgh or St. Louis or Miami or Sacramento or Raleigh or Minneapolis or Mountain View or Scottsdale or San Francisco or Morristown or Denver or Boston or Philadelphia or Des Moines or Overland Park or Los Angeles or Charlotte or Walnut Creek or Carmel or Seattle or Houston or Arlington or Atlanta or Redmond or Bentonville or Beaverton or Nashville or Detroit or San Diego or California or Cleveland or Colorado or District of Columbia or Illinois or Maine or Maryland or Massachusetts or Minnesota or New York or New Jersey or Virginia or Washington
$139k-$414k/yr OnsiteFull Time
Accenture
AccentureNYSE: ACN: Global provider of management consulting and technology services.
15+ YOERequires 15+ years in integrated eligibility, application, and technical architecture; 10+ years in cloud modernization, cloud infrastructure/security, and cloud-native engineering; bachelor's degree or equivalent experience.
Observability, Infrastructure as Code (IaC), DevOps, AWS Bedrock
4w
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AI Integration Architect
Milwaukee or Irvine or Dallas or Austin or United States
$134k-$200k/yr OnsiteFull Time
Cotality
Cotality: Provider of property intelligence, data, and analytics solutions.
7+ YOE7–10 years software engineering/architecture experience building LLM-powered or agentic AI applications; strong backend skills (Python/Java/.NET); API, security, and CI/CD experience; familiarity with agentic frameworks and AI observability.
LangChain, LlamaIndex, AutoGen, Python, Java, .NET, OAuth 2.0, JWT, Apigee, Kong, MCP, LiteLLM, Snowflake, Databricks, GCP, Docker, Kubernetes, Terraform, NVIDIA Device Plugins, CUDA, ROCm, vLLM, Triton