Senior Full-Stack Engineer - .NET & React

DraftKings; United States; Remote; USD 100,000 - 150,000; Full time

Job summary

DraftKings, a leading technology company specializing in sports and entertainment, is seeking a Senior Full-Stack Engineer. This role involves building high-performance trading tools, collaborating across teams, and ensuring code quality while innovating on the platform's features. Ideal candidates will have extensive development experience, especially in C# and React, and a passion for technology within the gaming industry.

Qualifications

• 4+ years of development experience in C#.
• At least 2 years in developing modern web applications using React.
• Experience with distributed systems in Cloud Computing environment.

Responsibilities

• Build and maintain high-performance, real-time trading tools.
• Design dynamic web-based widgets and dashboards.
• Collaborate across teams to improve platform reliability.

Skills

Object-oriented programming

Design patterns

REST design principles

Web communication protocols

Job description

We’re defining what it means to build and deliver the most extraordinary sports and entertainment experiences. Our global team is trailblazing new markets, developing cutting-edge products, and shaping the future of responsible gaming.

Here, “impossible” isn’t part of our vocabulary. You’ll face some of the toughest but most rewarding challenges of your career. They’re worth it. Channeling your inner grit will accelerate your growth, help us win as a team, and create unforgettable moments for our customers.

The Crown Is Yours

As a Senior Full-Stack Engineer, you’ll be part of one of our multidisciplinary teams where you’ll work closely with designers, product managers, and data analysts. You’ll be a creative contributor to our processes and decision-making so that when we build new features, we can ensure the scalability and availability of the entire platform.

What you’ll do as a Senior Full-Stack Engineer

• Build and maintain high-performance, real-time trading tools that empower DraftKings traders to visualize, price, and manage live markets and games.

• Design dynamic web-based widgets and dashboards for overriding or supplementing automated systems, detecting pricing anomalies, and responding rapidly to unexpected events.

• Collaborate across teams—product, design, and trading—to improve platform reliability, developer experience, and intuitive UX for handling peak volumes with confidence.

• Enforce code quality and maintainability by writing clean, testable code, conducting rigorous code reviews, and refining deployment workflows.

• Balance agility with long-term growth by iterating quickly on features while architecting for resilience, performance, and future scalability.

What you’ll bring

• Ideally, you have 4+ years of development experience in object-oriented programming using languages such as C#.

• Strong knowledge of OOP, design patterns, and REST design principles.

• At least 2 years of experience developing modern web applications using React.

• Experience with distributed systems in a Cloud Computing environment.

• Experience with web communication protocols.

• Ability to grow other engineers through code reviews, design reviews, and over-the-shoulder debugging.

• Experience writing and maintaining a comprehensive suite of unit and integration tests.

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Join Our Team

We’re a publicly traded (NASDAQ: DKNG) technology company headquartered in Boston. As a regulated gaming company, you may be required to obtain a gaming license issued by the appropriate state agency as a condition of employment. Don’t worry, we’ll guide you through the process if this is relevant to your role.