Senior Backend Engineer

DraftKings Inc.

. Design and develop scalable back-end systems and APIs that power high-impact applications used by a large, engaged user base around the clock.

Posted 4/7/2026full-timeRemote • 🇺🇦 UkraineSeniorWebsite

Tech Stack

Tools & technologies

AWSCloudDistributed SystemsGoogle Cloud Platform

About the role

Key responsibilities & impact

Design and develop scalable back-end systems and APIs that power high-impact applications used by a large, engaged user base around the clock.
Deliver production-ready code, driving forward new features and capabilities in a 24/7 sports betting environment.
Prioritize agility and scalability equally to support rapid product rollouts while ensuring systems are built to pivot and perform at scale.
Own the full software development lifecycle, from initial design through long-term maintenance, performance tuning, and reliability improvements.
Triage, investigate, and resolve production issues with urgency, contributing to a culture of continuous improvement and operational excellence.
Ensure all components are built to withstand high volume and real-time demands, optimizing for speed and efficiency.
Collaborate cross-functionally to align technical execution with product goals, mentoring peers and driving quality standards across the team.

Requirements

What you’ll need

Bachelor's degree in Computer Science or any relevant combination of education, experience, and training.
At least 3 years of professional experience in object-oriented backend development using languages such as C#, with deep knowledge of OOP principles, design patterns, and backend system architecture.
Proven success designing and building scalable distributed systems in Cloud environments such as AWS or Google Cloud Platform (GCP).
Advanced proficiency in writing and maintaining automated test suites, including unit, integration, and performance tests, for large-scale backend services.
A demonstrated ability to mentor and grow other engineers through code reviews, design reviews, and collaborative debugging.

Benefits

Comp & perks

Health insurance
401(k) matching
Flexible work hours
Paid time off
Remote work options

ATS Keywords

✓ Tailor your resume

Applicant Tracking System Keywords

Tip: use these terms in your resume and cover letter to boost ATS matches.

Hard Skills & Tools

object-oriented programmingC#OOP principlesdesign patternsbackend system architecturescalable distributed systemsautomated test suitesunit testingintegration testingperformance testing

Soft Skills

mentoringcollaborationproblem-solvingurgencycontinuous improvementoperational excellencequality standards

Certifications

Bachelor's degree in Computer Science