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Sr. Lead .NET Developer (Integration, API, ESB, C#, Azure) (Remote, Santa Clara, CA)

Stage 4 Solutions Inc
Santa Clara, CA Remote Contractor
POSTED ON 1/9/2026
AVAILABLE BEFORE 3/8/2026
Sr. Lead .NET Developer (Integration, API, ESB, C#, Azure) (Remote, Santa Clara, CA) We are looking for a Sr. Lead .NET Developer, an Integration Expert for our client, a County in the State of California. The focus of this role is to design, create, and test all interfaces and data exchanges required for two criminal justice projects that include implementing a new jail management system and modernizing the remaining components in the legacy Criminal Justice Information Control system that will work with new jail management system. This contract position is long-term with funding approved every 4 months (extensions likely), 40 hours per week. This is a 100% remote supporting our client’s offices in Santa Clara, CA. The preferred candidates must reside in the San Francisco Bay area, within a commutable distance of the offices in Santa Clara, CA.  This is a W-2 role as a Stage 4 Solutions employee. Health benefits and 401K are offered. Responsibilities: Designing, creating, and testing all interfaces and data exchanges required for two projects. Responsible for working with API management toolset. Integrating with Microsoft SQL Server and coding stored procedures Analyze complex integration issues and provide effective solutions.  Troubleshooting skills to identify and resolve integration-related issues promptly. Requirements:  10 years of experience in Programming Languages: Proficiency in programming languages in C# on .NET. 7 years of experience in Integration Technologies: Experience in integration technologies such as API (Application Programming Interface), ESB (Enterprise Service Bus), middleware, and other relevant tools. 7 years of experience in Data Formats: Familiarity with various data formats and protocols like XML, JSON, SOAP, REST, etc. 7 years of experience in Data Handling: Proficiency in implementing database applications using Microsoft SQL Server, Oracle SQL Server, etc. 4 years of experience in Cloud Integration: Experience with cloud-based integration platforms and services, like Azure Integration Services and AWS. 4 years of experience in API Management: Experience with API management solutions, such as Azure API Management solutions, MuleSoft API Manager, Software AG API Gateway. 7 years of experience in Business Engagement: Experience in working with Subject Matters Expert in collecting business requirements, document them, and produce business requirements document.  Please submit your resume to our network at https://www.stage4solutions.com/careers/ (Please apply to Sr. Lead .NET Developer (Integration, API, ESB, C#, Azure) (Remote, Santa Clara, CA) role. Please feel free to forward this project opening to others who may be interested. Stage 4 Solutions is equal-opportunity employer. We celebrate diversity and are committed to providing employees with an inclusive environment that is free of discrimination and harassment. All employment decisions are based on the job requirements and candidates’ qualifications, without regard to race, color, religion/belief, national origin, gender identity, age, disability, marital status, genetic information, or other applicable legally protected characteristics.  Compensation: $65/h - $85/h (depending on experience)

Salary : $65 - $85

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