21 senior react engineer jobs at 12 companies in Beloit, WI
2mo
Save
Mark Applied
Hide
Senior AI Engineer
Minnetonka or Madison
$113k-$170k/yr HybridFull Time
3+ YOE3+ years AI work experience; 5+ years software/platform engineering; Bachelor's degree or equivalent.
Java, Angular, React, Node.js, Flutter, MuleSoft, AWS, Azure, CI/CD, Enterprise search, Content management systems
3w
Save
Mark Applied
Hide
Senior Engineer, Internal Developer Platform
Madison or Denver or Boston
$99k-$167k/yr HybridFull Time
Extensive experience building and operating cloud platforms (AWS/GCP), Kubernetes, IaC (Terraform/Crossplane), CI/CD, Backstage, scripting (Python/Go/Bash) and observability (Datadog).
AWS, GCP, Kubernetes, Docker, EKS, GKE, VPC, IAM, S3, Terraform, Crossplane.io, Backstage.io, TypeScript, Node.js, React, GitLab CI/CD, JFrog Artifactory, Python, Go, Bash, Datadog, Git, Argo CD, Flux, Jenkins, GitHub Actions, Bitbucket, CloudFormation, REST, GraphQL
3mo
Save
Mark Applied
Hide
Senior Fullstack Engineer, Solve
Austin or Madison or San Francisco
$145k-$217k/yr HybridFull Time
3+ YOE3+ years of production software experience; backend-first with APIs, async systems, integrations, and real-time systems; ownership of features end-to-end; experience with real-time or event-driven tech such as WebSockets/WebRTC.
Python, FastAPI, React, TypeScript, WebRTC, Redis, MongoDB, LLM / speech
3mo
Save
Mark Applied
Hide
Senior Staff Quality Engineer
Austin or Madison
OnsiteFull Time
5+ YOE5+ years QA experience in agile environments; designing and implementing test automation (keyword-driven, POM); API automation; Python and PyTest proficiency; familiarity with Robot Framework or Playwright, JavaScript/React, Google Cloud, and Elastic Stack.
Python, PyTest, Robot Framework, Playwright, Javascript, React, Google Cloud, Elastic Stack (Elasticsearch, Kibana), CI/CD, RESTful, SOAP
6d
Save
Mark Applied
Hide
Senior Mobile Software Developer
Watertown, Wisconsin, United States
RemoteFull Time
6+ YOE6+ years mobile app experience with React Native, offline-first architecture, BLE integrations, synchronization, and mentorship/technical leadership experience.
React Native, Bluetooth Low Energy (BLE), Jira, Gitflow, CI/CD
1mo
Save
Mark Applied
Hide
Senior Staff Engineer
Madison, Wisconsin, United States
$180k-$220k/yr HybridFull Time
10+ YOE10+ years professional software engineering experience; deep TypeScript/full-stack expertise; proven architecture, API, scalability, and reliability experience; strong communication and mentorship skills.
TypeScript, React, Next.js, Node.js, PostgreSQL, Algolia, AWS, GCP, Vercel, Cloudflare
1mo
Save
Mark Applied
Hide
Principal Agentic Engineer
San Francisco or Madison
$175k-$300k/yr OnsiteFull Time
6+ YOE6+ years experience building LLM-based agents and autonomous systems; expertise with OpenAI GPT/Anthropic Claude, LangChain/CrewAI; strong software engineering in Python and TypeScript; agent architecture and observability experience.
OpenAI GPT, Anthropic Claude, LangChain, CrewAI, Python, TypeScript, React
6d
Save
Mark Applied
Hide
Staff Engineer - Full Stack
Madison, Wisconsin, United States
$145k-$150k/yr HybridFull Time
5+ YOEBachelor's in a relevant field,5+ years experience,strong TypeScript/React and Python (Flask/Django),SQL/Postgres and Mongo,HL7/FHIR experience,AI tool experience,excellent communication and problem-solving.
TypeScript, React.js, Python, Flask, Django, Postgresql, Mongo, HL7, FHIR
1d
Save
Mark Applied
Hide
Software Engineering Lead
United States or Middleton
$135k-$145k/yr RemoteFull Time
10+ YOE2+ Mgmt10+ years software development experience with 2+ years technical leadership; bachelor's degree in computer science or related field; expertise in React, Java/C#/Python, cloud platforms, CI/CD, and strong architecture and communication skills.
React.js, Angular, Java, C#.NET, Python, Flask, Django, FastAPI, Microsoft Azure, AWS, GCP, Git, CI/CD, Docker, Kubernetes, Terraform, Bicep, ARM templates, OAuth, JWT, Azure AD
1w
Save
Mark Applied
Hide
Software Engineer
United States or Austin or Boston or Chattanooga or Chicago or Dallas or Denver or Houston or Jefferson City or Kansas City or Madison or Milwaukee or Minneapolis or Nashville or Omaha or Providence or Springfield or Saint Louis or Washington
$76k-$234k/yr HybridFull Time
5+ YOEBachelor's or equivalent,5+ years application engineering experience,full‑stack proficiency with backend focus,experience with generative AI and cloud deployment (Azure preferred),strong architecture and communication skills.
Python, Javascript, TypeScript, React, Vue, Azure, CI/CD, LLM APIs
1mo
Save
Mark Applied
Hide
Geospatial Cyber Security Engineer – Multiple Positions at Junior/Mid/Senior Levels
St. Louis or St. Charles or Virginia or Sun Prairie
OnsiteFull Time
5+ YOETop Secret/SCI required; Bachelor's in CS/Engineering; 5+ years experience; RMF/A&A, NIST 800-53, XACTA/eMASS, ACAS, Linux/Windows hardening, vulnerability management, strong communication.
XACTA, eMASS, ACAS, Python, Java, React, Jira, Confluence, RedHat/CentOS
1w
Save
Mark Applied
Hide
Microsoft Word Add-In Developer (Contract)
Madison, Wisconsin, United States
OnsiteContract
Experience building and publishing Word add-ins with Office.js/Word JavaScript API, production-level TypeScript and React, REST API integration, OAuth2/MSAL authentication, cross-platform Word compatibility, and strong testing/documentation practices.
Office.js, Word JavaScript API, TypeScript, React, Microsoft Authentication Library (MSAL), OAuth 2.0, Fluent UI, RESTful APIs, Microsoft 365, Microsoft marketplace