Freelance Full Stack Developer Jobs in Idaho (NOW HIRING)

Full-stack React/.net C# developer, to assist with the development of application of a legal case data portal, where users can search and find case data.
We have an application we're developing here of a legal case data portal, where users can search and find case data.
It's built on a standard, modern .NET stack, using C# with ASP.NET Core (.NET 6/8) for backend REST and SOAP APIs, with AWS services such as Lambda for serverless processing. The frontend leverages React and Javascript/TypeScript.
REQUIRED:
React & Javascript
• [4+ years] React: Building modern, component-based UIs (as indicated by the need for Node/NPM in the README).
• [4+ years] JavaScript/TypeScript: Writing maintainable, modular code for the frontend
C# / .NET
• [4+ years] Strong proficiency in C# and the .NET 6/8 ecosystem
• [4+ years] Experience with ASP.NET Core for building RESTful APIs
• [2+ years] Familiarity with dependency injection
• [2+ years] Understanding of asynchronous programming using async/await
API Integration
• [4+ years] Ability to implement and consume REST APIs (using controllers, attributes, and model validation)
• [Nice-to-have] Any experience with SOAP APIs: constructing and parsing XML, using HttpClient, and working with XmlSerializer is nice to have
Testing
• [2+ years] Writing and maintaining unit and integration tests using NUnit.
• [2+ years] Using RestSharp for HTTP-based integration tests
• [4+ years] Serializing/deserializing JSON with System.Text.Json and Newtonsoft.Json.
Cloud & Serverless
• [3+ years] Experience with AWS Lambda (C#): writing handler functions, deploying with Amazon.Lambda.Tools, and using AWS SDKs (e.g., Secrets Manager, SES)
• [3+ years] Understanding of serverless application patterns
• [Nice-to-have] Any OpenSearch experience would be highly prized
Containerization & Local Development
• [2+ years] Building and running services with Docker and Docker Compose
DevOps & Tooling
• [4+ years] Git: Source control and branching strategies
• [Nice-to-have] CI/CD: Familiarity with pipelines for automated builds, tests, and deployments
• [Nice-to-have] Postman/Yakk: used for manual API testing and exploration
• [4+ years] Visual Studio: our primary IDE for development and debugging
Security
• [2+ years] Security best practices for AWS: IAM least privilege, secure secrets handling with AWS Secrets Manager, and protecting data in transit and at rest
• [Nice-to-have] Application security: familiarity with OWASP Top 10, API authentication/authorization, and secure code review or remediation practices
Required/Desired Skills
SkillRequired /DesiredAmountof ExperienceReact: Building modern, component-based UIs (as indicated by the need for Node/NPM in the README)Required4YearsJavaScript/TypeScript: Writing maintainable, modular code for the frontendRequired4YearsStrong proficiency in C# and the .NET 6/8 ecosystemRequired4YearsExperience with ASP.NET Core for building RESTful APIsRequired4YearsFamiliarity with dependency injectionRequired2YearsUnderstanding of asynchronous programming using async/awaitRequired2YearsAbility to implement and consume REST APIs (using controllers, attributes, and model validation)Required4YearsAny experience with SOAP APIs: constructing and parsing XML, using HttpClient, and working with XmlSerializer is nice to have Nice to have2YearsWriting and maintaining unit and integration tests using NUnit; Using RestSharp for HTTP-based integration testsRequired2YearsSerializing/deserializing JSON with System.Text.Json and Newtonsoft.JsonRequired2YearsExperience with AWS Lambda (C#): writing handler functions, deploying with Amazon Lambda Tools, and using AWS SDKs (e.g., Secrets Manager, SEES); UndeRequired3YearsGit: Source control and branching strategiesRequired4YearsBuilding and running services with Docker and Docker ComposeRequired0
Questions
No.QuestionQuestion1Absences greater than two weeks MUST be approved by CAI management in advance, and contact information must be provided to CAI so that the resource can be reached during his or her absence. The Client has the right to dismiss the resource if he or she does not return to work by the agreed upon date. Do you agree to this requirement?Question2What is your candidate's email address?Question3Have you completed and submitted the Right to Represent form, making sure to do so exactly as instructed? The form is located at https://www.cai.io/media/documents/msp/id/idaho_e-rtr_template.doc.Question4Candidates submitted above the hourly Vendor Rate of $94.22 will not be considered. Do you agree to this requirement?Question5This is an ONSITE role located in BOISE, IDAHO; your candidate must be willing to go onsite for a minimum of 3 days each week. Please SPECIFY the CITY and STATE in which your candidate is CURRENTLY located (if not specified or if location specified is determined to be untrue at any point during the screening/interview/onboarding process - INCLUDING DURING BACKGROUND CHECK WHICH WILL CONFIRM TRUE ADDRESS - your candidate will not be considered/will be removed from consideration for the position.) Question6The interview will be conducted IN-PERSON. If your candidate is seleceted for an interview they must attend an IN-PERSON interview. Please acknowledgeQuestion7Respond to this question with a link to your candidate's LinkedIn ProfileQuestion8Please prepare your candidate that they may receive a screening call or text from someone at CAI at any point between the time of submittal through close of business, 4/10/2026, to discuss their qualifications for this position. Please MAKE SURE THEY ARE PREPARED FOR THIS CALL and are PREPARED TO GIVE US YOUR COMPANY's NAME as the vendor that submitted them for this position. Please confirm you have discussed this with them and they will be prepared for a potential screening call from CAI.