Senior Dotnet Developer jobs in United States
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Brooksource · 14 hours ago

Senior Dotnet Developer

Brooksource is seeking a Senior .NET Developer to design and build core verification APIs for a cloud-native platform. This role focuses on backend API development and integration with external verification sources while ensuring that verification logic is maintainable and auditable.

EmploymentHuman ResourcesInformation Technology
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Growth Opportunities
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H1B Sponsor Likelynote

Responsibilities

Design and implement RESTful APIs using .NET (C#) to support verification requests, responses, and status tracking
Build secure and scalable API integrations with external verification sources, including:
State and federal data providers
Third-party systems
Stubbed or mock services during early delivery phases
Implement policy-driven business rule patterns that clearly separate verification logic from core service code
Enable business rules to be read, updated, and tested without invasive code changes
Design traceable rule evaluation flows that support explainability (inputs → rules → outcomes)
Support automated, partial, and manual verification paths based on rule outcomes
Apply API security best practices for systems handling sensitive data (authentication, authorization, data protection)
Collaborate with:
Cloud platform teams on infrastructure, CI/CD, and runtime environments
Integration teams on API gateways and enterprise integration patterns
Product, policy, and data governance stakeholders to translate requirements into technical solutions
Produce clear technical documentation for APIs, business rules, and integration contracts

Qualification

.NET / C#REST APIsAPI securitySQL data accessMicrosoft AzureAgile environmentsCI/CD pipelinesAPI gatewaysRules enginesAuditability

Required

Strong experience developing backend services using .NET / C#
Proven experience designing and implementing REST APIs with proper validation, versioning, and error handling
Experience integrating with external systems via APIs or service-based interfaces
Demonstrated ability to implement business rules outside of hard-coded service logic
Experience designing maintainable, transparent decision logic suitable for policy-driven systems
Familiarity with API security concepts, including OAuth 2.0 / OpenID Connect
Experience with SQL-based data access and relational data modeling
Comfortable working in Agile / iterative delivery environments
Experience deploying and operating applications in Microsoft Azure

Preferred

Familiarity with CI/CD pipelines (Azure DevOps or similar)
Experience with API gateways or enterprise integration platforms
Exposure to rules engines, configuration-driven logic, or decision tables
Experience designing systems with auditability and explainability as core requirements
Background working in government, healthcare, or other regulated environments
Experience supporting systems or initiatives aligned with federal guidelines or compliance-driven programs, such as HR1 (Work Requirements), CMS, or similar policy-driven efforts

Company

Brooksource

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Brooksource is a single source for project and supplemental support through contract employment, contract-to-hire labor employment.

H1B Sponsorship

Brooksource has a track record of offering H1B sponsorships. Please note that this does not guarantee sponsorship for this specific role. Below presents additional info for your reference. (Data Powered by US Department of Labor)
Distribution of Different Job Fields Receiving Sponsorship
Represents job field similar to this job
Trends of Total Sponsorships
2020 (10)

Funding

Current Stage
Late Stage

Leadership Team

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Ashley Cigolotti
Director, Global Partnerships
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Matt Ayala
National Account Executive (Global Partnerships)
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Company data provided by crunchbase