Full-Stack Developer

Dunhill Professional Search & Government Solutions; Bethesda (MD); On-site; USD 101,000 - 127,000; Full time

Job summary

Dunhill Professional Search & Government Solutions is seeking a Senior Full-Stack Developer to design, build, and maintain enterprise applications using .NET/C# and React in a regulated client environment.

The role emphasizes secure, scalable code, CI/CD pipelines, and Azure-based hosting with observability. On-site in Bethesda, MD two days per week; U.S. Citizenship required for federal access and background clearance.

Qualifications

• Bachelor’s degree in a related field or equivalent experience.
• 6+ years of progressively responsible software development experience.
• Experience supporting enterprise applications and production troubleshooting.
• Proven ability to establish and maintain CI/CD pipelines.
• Working knowledge of secure development practices and change-management controls.
• US Citizenship and ability to pass a federal background check.
• On-site work in Bethesda, MD 2 days/week.

Responsibilities

• Lead design, development, testing, deployment, and maintenance of complex full-stack apps using .NET and React.
• Translate requirements into secure technical designs, reusable components, and implementation plans.
• Resolve production defects, remediate technical debt, and improve reliability and performance.
• Design and maintain CI/CD pipelines with automated testing and release validation.
• Apply secure delivery practices including code reviews and vulnerability remediation.
• Leverage Azure for hosting, monitoring, and scaling enterprise applications.
• Collaborate with cross-functional teams to define requirements and unblock delivery.
• Mentor less-experienced developers and enforce engineering standards.

Skills

Full-stack development

CI/CD pipelines

Azure cloud services

Mentoring/leadership

Agile/DevSecOps

Secure software practices

Education

Bachelor's degree in Computer Science or related field

Tools

React

.NET

C#

REST APIs

CI/CD tooling

Azure DevOps

Job description

The Full-Stack Developer leads the design, enhancement, operation, and maintenance of complex enterprise software applications supporting mission-critical business operations in a regulated client environment. This role translates functional requirements into secure, scalable, maintainable application components and technical designs using modern React and .NET technologies. The position provides technical leadership through peer reviews, complex defect resolution, performance optimization, mentoring, and adherence to Agile and DevSecOps delivery practices. The Full-Stack Developer also builds and supports automated delivery pipelines that validate, test, package, deploy, and monitor changes across controlled application environments.

Responsibilities

• Lead the design, development, enhancement, testing, deployment, and maintenance of complex full-stack software applications using current .NET platforms, C#, RESTful APIs, and React-based user interfaces.
• Translate functional requirements into secure technical designs, reusable components, data-access patterns, interface contracts, development estimates, and implementation plans.
• Assess existing application architecture, isolate and resolve complex production defects, remediate technical debt, and improve application reliability, maintainability, performance, and response times.
• Design, implement, and maintain CI/CD pipelines that perform pull-request validation, linting, builds, unit and integration testing, artifact packaging, controlled deployment, and release verification.
• Apply secure software delivery practices, including code reviews, dependency and vulnerability remediation, secrets management, access controls, audit-ready change management, and automated quality gates.
• Use Azure cloud services to host, deploy, monitor, troubleshoot, and scale enterprise applications, leveraging application telemetry and monitoring data to support operational reliability.
• Collaborate with architects, business analysts, product owners, and cross-functional delivery teams to define requirements, resolve technical blockers, and deliver high-quality solutions in Agile environments.
• Mentor less-experienced developers, establish and reinforce engineering standards, conduct peer reviews, and provide technical guidance across application operations, maintenance, and modernization activities.

Requirements

• Bachelor’s degree in Computer Science, Information Systems, Software Engineering, or a related field, or equivalent relevant experience.
• Six or more years of progressively responsible experience in software development, web application development, and application operations and maintenance.
• Experience supporting existing enterprise applications, including production troubleshooting, root-cause analysis, defect remediation, performance optimization, and technical-debt reduction.
• Demonstrated ability to establish and maintain CI/CD pipelines supporting automated builds, code-quality checks, unit and integration testing, packaging, deployment, and release validation.
• Working knowledge of secure software development practices, including code review, vulnerability remediation, secure secrets handling, access controls, dependency management, and change-management controls.
• US Citizenship and the ability to pass a federal background investigation in order to be granted access to sensitive information.
• Must be able to work on-site in Bethesda, MD 2 days per week.

Strongly preferred

• Experience using Azure services, including Azure App Service, Azure Key Vault, application monitoring, telemetry, and cloud-hosted application deployment and troubleshooting.

Preferred

• Familiarity with Azure Data Lake Storage concepts, including structured and unstructured data storage, hierarchical namespace patterns, access controls, and analytics integration.
• Azure Developer Associate, Azure DevOps Engineer Expert, or a comparable cloud or DevSecOps certification.
• Experience with infrastructure as code, containerized application delivery, observability tooling, and AI-enabled coding tools used with appropriate developer review and security controls.

Compensation

$101,000 - $127,300 per year