.NET Developer

About The Company
Vaco LLC connects talented professionals with opportunities across a range of industries. The company is seeking a technical leader for an Adherence Engineering Team focused on developing technology that helps medical practices improve patient vaccination adherence. Early pilot programs have shown vaccination rates increasing by more than 10% when practices use targeted patient outreach tools. The team will help scale and operationalize these capabilities to support a growing network of practices and contribute to better health outcomes.

About The Role
Vaco LLC is seeking a hands-on Technical Lead with substantial .
NET engineering experience to help establish and guide a newly formed team. This role combines software development, technical leadership, architecture, and mentorship. You will help shape the engineering culture and platform, collaborate with product and business partners, and guide solutions from initial design through production deployment and support. The ideal candidate enjoys solving complex technical problems while building reliable software that addresses meaningful business and patient engagement needs. Qualifications Qualified candidates will bring at least five years of experience developing enterprise applications with .
NET and at least three years in a technical lead or team lead role. Strong expertise in C#, .
NET, and SQL Server is required, along with experience building service-based and distributed applications. Familiarity with ASP.
NET or ASP.
NET Core, and single-page application frameworks such as Angular, React, or similar technologies, is expected. Candidates should also have experience with message brokers or service buses, such as RabbitMQ or Azure Service Bus; dependency injection and inversion of control; task scheduling frameworks such as Quartz.
NET; third-party API integrations; and automated testing tools such as MSTest, NUnit, or xUnit. Experience designing long-running workflows that balance performance and reliability is important. Strong analytical and problem-solving skills, a continuous-improvement mindset, and the ability to translate business challenges into effective technical solutions are essential. A sense of ownership and enthusiasm for mentoring engineers are also valued. Responsibilities Provide technical direction for a team developing adherence and patient engagement solutions. Contribute hands-on to architecture, design, implementation, testing, deployment, and production support. Design scalable, high-performance software architectures and guide the development of maintainable, well-tested code supported by effective automation practices. Build a collaborative engineering culture grounded in trust, craftsmanship, and delivery excellence. Mentor engineers, support their professional growth, and strengthen technical skills across the team. Partner with product and business stakeholders to understand priorities, define requirements, and evolve the future of vaccine adherence solutions. Take ownership of technical decisions and help ensure that solutions are reliable, sustainable, and aligned with user and business needs. Benefits Eligible employees may participate in medical, dental, and vision benefit plans, as well as the company’s 401(k) retirement plan. The individual may also be eligible for discretionary bonuses. Compensation depends on factors that may include skills, experience, training, certifications, location, and business needs. Where required by local law, applicable salary range information will be provided in the job posting. Submissions may be subject to preliminary AI-assisted screening focused on confirming minimum job requirements. Further candidate assessment is conducted by recruiters and hiring managers. By applying, candidates may also be considered for similarly qualified opportunities with Vaco LLC and its clients. Candidates should provide accurate information and follow applicable confidentiality and representation terms during the recruiting process. Equal Opportunity Vaco by Highspring is an Equal Opportunity Employer. Employment decisions are made without discrimination based on race, including traits historically associated with race such as hair texture and hairstyle; color; sex, including pregnancy or related conditions; religion or creed; national origin; citizenship; age; disability; veteran status; union membership; ethnicity; gender; gender identity or expression; sexual orientation; marital status; political affiliation; or any other characteristic protected by applicable federal, state, or local law. Vaco by Highspring and its affiliates are committed to the full inclusion of qualified individuals and will provide reasonable accommodations for applicants with disabilities. Applicants who need accommodation to participate in the application or interview process should contact the company.