Internship Web Developer Startup Jobs in Florida

Location: Jacksonville, FL | Work Type: Hybrid | Department: Development | Salary Range: $120,000 - $150,000

Imagine the first day of college. The first week of a new job. The moment someone decides to stay or go.

We build the digital experiences that shape those moments. Our platforms power orientation and onboarding for 400+ institutions including Harvard, UCLA, and Florida State University. We welcome over 4.5 million people per year into important life transitions. We are the market leader in interactive, video-driven onboarding. What we build moves people.

You will lead a skilled development team inside a 50-person company where your impact is immediate and visible. Reporting to the Director of Technology, you will set technical direction, establish standards, mentor engineers, and remain hands‑on with production code.

The platforms you build and lead touch hundreds of thousands of students and employees every year. Strong technical leadership here has a direct, measurable impact on client outcomes and organizational growth.

We are a goal‑driven organization. Priorities are clear, commitments are tracked, and accountability is real and mutual.

We hold a high technical bar and invest in the people who meet it. No politics. No unnecessary complexity. Just excellent work, done right.

We have been doing this successfully for over 26 years — not a startup, not a corporate giant. A focused, talented team that takes quality seriously.

As Senior Web Engineer / Team Lead, you are the senior technical force inside Advantage's development group. You lead by doing. You write and review production code, architect scalable solutions, define development standards, and mentor developers to grow in their craft. You are the bridge between technical execution and product direction — translating complex requirements into well‑engineered, maintainable systems.

1. Lead, mentor, and coach a small team of Web Developers in C#, .NET Core, and Umbraco
2. Conduct meaningful code reviews that improve quality and share knowledge
3. Partner with project managers and producers to plan and balance priorities across multiple client projects
4. Support team member growth through regular feedback, career development, and technical coaching
5. Lead team rituals including standups, retrospectives, and knowledge‑sharing sessions
6. Provide input on technical hiring, onboarding, and team structure

1. Design and evolve CMS‑driven web application architectures using .NET (C#), ASP.NET Core MVC, and MS SQL Server
2. Stay hands‑on with complex development work: integrations, performance improvements, and challenging features
3. Integrate REST APIs and authentication systems including OAuth2, SAML, and OpenID Connect; document with OpenAPI (Swagger)
4. Oversee Azure deployments, CI/CD pipelines, IIS and Windows Server administration, and security and performance monitoring
5. Define and evolve coding standards, deployment practices, and branching strategies
6. Participate in client implementation planning calls
7. Troubleshoot production issues collaboratively across teams
8. Evaluate emerging technologies and contribute to product and architectural direction

• C# and .NET Core / ASP.NET Core MVC
• Umbraco CMS (or similar: Sitecore, Kentico, custom .NET CMS)
• MS SQL Server
• HTML, CSS, JavaScript, Razor, CSHTML
• Visual Studio

• Git‑based source control, Azure DevOps or GitHub Actions for CI/CD
• Azure cloud deployment and architecture
• REST APIs, AJAX, JSON, OpenAPI (Swagger), Postman
• IIS hosting and Windows Server administration
• DevSecOps practices
• Accessibility standards (WCAG) and web security best practices

• Web Application Architecture
• N‑Tier Application Architecture
• Multitenant Application Architecture

• 7+ years of professional web development experience
• 3+ years in a technical lead or engineering management capacity
• Proven success leading or mentoring developers, formally or informally
• Management or leadership training completed or actively pursued

• C# and .NET Framework / .NET Core (8+ years)
• ASP.NET Core MVC and front‑end technologies (8+ years)
• MS SQL Server and SQL development (6+ years)
• CMS platforms: Umbraco, Sitecore, Kentico, or comparable (6+ years)
• Application integration and API/web service development (6+ years)
• SDLC methodologies: Agile, Waterfall, and Hybrid (7+ years)
• Technical documentation (5+ years)
• REST APIs, OAuth2, SAML, OpenID Connect (4+ years)
• Azure cloud, IIS, DevSecOps, CI/CD (3+ years)
• Application architecture: web, N‑tier, multitenant (3+ years)

• Azure App Service, Docker, Kubernetes
• Enterprise system integrations: Salesforce, Workday, Ellucian
• Network and SSL fundamentals
• Report development
• Azure Solution Architect Expert certification or equivalent
• Experience working with creative and production teams

You are a senior engineer who grew into leadership without leaving the craft behind. You write clean, scalable code and raise the quality of everything around you.

• Technically rigorous. Your .NET and CMS experience runs deep. Architecture is not a concept — it is something you have designed and delivered.
• A leader who earns trust. You have led developers, run code reviews, and made other engineers better. You set standards and hold them.
• Methodical and accountable. You operate with precision. Commitments are kept. Delivery metrics matter.
• Collaborative across functions. You work effectively with project managers, designers, and client success teams. You translate technical complexity without losing the room.
• Proactive. You identify risks before they become incidents. You bring solutions, not just observations.
• Client‑aware. You understand that your code has real users and real stakes. You care about that.
• Continuously improving. You stay current with the technology landscape and bring that knowledge back to your team.
• Education: Bachelor's degree or higher in Computer Science, Software Engineering, or a related field, or equivalent professional experience.

• Competitive base salary, commensurate with experience
• Annual performance‑based raises
• 401(k) with company match
• Profit‑sharing program
• Group Health, Dental, and Vision Insurance
• Paid vacation and holidays
• Hybrid work schedule after onboarding
• Flex time options
• Gym membership
• Ongoing training and professional development
• Coastal Jacksonville, FL office — beaches, rivers, lower cost of living, and no state income tax

If you are a senior engineer ready to lead a talented team building platforms that matter, we would love to meet you.

Apply Now at https://advantage-design-group.breezy.hr/p/94f333ae872c-senior-web-engineer-team-lead/apply more about what it’s like to join our team by visiting our welcome page: https://welcome.advantagedesigngroup.com

Advantage Design Group is proud to be an equal opportunity employer.