Senior C# Software Engineer

We are seeking a Full-Stack Software Engineer with strong .NET fundamentals to build and scale data-dense web applications for public health and operational teams. This role is highly focused on modern Microsoft technologies, requiring a developer who can build interactive web UIs using Blazor (Server/WebAssembly) and develop robust, high-performance backend services and Web APIs using C#.

This role is 100% remote!

If you have C#, .Net and BLAZOR experience - please apply! MUST be able to convert to full time without sponsorship in 3 months.

location: Telecommute

job type: Contract to Perm

salary: $55 - 67 per hour

work hours: 8am to 4pm

education: Bachelors

responsibilities:

What You'll Do

• Build and maintain backend services and APIs to support map interactions and data access
• Refactor blazor components
• Collaborate closely with product and design to translate real-world workflows into intuitive UI patterns
• Ensure performance, usability, and clarity when working with large or complex data sets
• Iterate quickly based on user feedback and evolving requirements
• Contribute to a collaborative, pragmatic engineering culture focused on building the right solution, not just shipping code

qualifications:

Required

C# / .NET: Minimum 3 years of experience building production applications

Blazor: Hands-on experience building interactive web UIs with Blazor (Server and/or WebAssembly)

SQL Server & Entity Framework: Required experience for designing, querying, and maintaining data-driven applications

Azure: Experience integrating and managing Azure services to support scalable, cloud-based applications

Full-Stack Ownership: Comfort working across the stack and owning features end-to-end

Data Visualization: Ability to reason about data visualization and user interaction, especially in data-dense interfaces

Mindset: Strong problem-solving skills, a willingness to learn new tools/libraries/domains, clear communication skills, and a collaborative mindset

Nice to Have

Frontend Development: Recent, hands-on experience with JavaScript and modern frontend development

User-Centric Design: Experience building applications used by operational or non-technical users

Performance Tuning: Exposure to performance optimization in data-heavy applications

How We Work

Team Dynamic: Small, remote, collaborative team with close product and engineering alignment

Development Process: Pragmatic, iterative development driven by real user feedback

Engineering Philosophy: Emphasis on clarity, maintainability, and usability over over-engineering

Culture: High trust, high ownership, and shared accountability

Contract-to-Hire Structure

This role will begin as a 3-month contract, during which we'll focus on:

Feature Delivery: Meaningful contribution to data visualization features

Team Integration: Close collaboration with the existing team

Technical Onboarding: Comfort navigating the codebase and product domain

Note: Successful contracts will convert to full-time employment.

Equal Opportunity Employer: Race, Color, Religion, Sex, Sexual Orientation, Gender Identity, National Origin, Age, Genetic Information, Disability, Protected Veteran Status, or any other legally protected group status.

At Randstad Digital, we welcome people of all abilities and want to ensure that our hiring and interview process meets the needs of all applicants. If you require a reasonable accommodation to make your application or interview experience a great one, please contact

Pay offered to a successful candidate will be based on several factors including the candidate's education, work experience, work location, specific job duties, certifications, etc. In addition, Randstad Digital offers a comprehensive benefits package, including: medical, prescription, dental, vision, AD&D, and life insurance offerings, short-term disability, and a 401K plan (all benefits are based on eligibility).

This posting is open for thirty (30) days.

It is unlawful in Massachusetts to require or administer a lie detector test as a condition of employment or continued employment. An employer who violates this law shall be subject to criminal penalties and civil liability.

Qualified applicants in San Francisco with criminal histories will be considered for employment in accordance with the San Francisco Fair Chance Ordinance.

Qualified applicants with arrest or conviction records will be considered for employment in accordance with the Los Angeles County Fair Chance Ordinance for Employers and the California Fair Chance Act.

We will consider for employment all qualified Applicants, including those with criminal histories, in a manner consistent with the requirements of applicable state and local laws, including the City of Los Angeles' Fair Chance Initiative for Hiring Ordinance.