Rush Street Interactive (NYSE: RSI) is a market leader in online casino and sports betting, currently operating real-money gaming with our brands: BetRivers.com, PlaySugarHouse.com, and RushBet.co. We’re building bridges between online, social and land-based gaming businesses to create amazing, integrated experiences that keep players in the game. Rush Street Interactive is a mobile-first company evolving digital architecture into a modern, scalable, event-driven platform. As a Senior Server Engineer, you will play a foundational role in designing and building the backend services, APIs, event processing systems, and integrations that power our digital experiences and enable analytics, lifecycle engagement, and downstream data systems. This role goes beyond feature delivery. You will help architect scalable backend services, event-driven workflows, and platform capabilities. This role works closely with Product Managers, Analytics, Data Engineering, Infrastructure, and other engineering teams and, in addition to hands-on development. This role requires deep backend engineering expertise combined with systems thinking, mentoring experience, architectural discipline, and a strong appreciation for scalability, reliability, observability, and maintainability.

What You'll Do

Lead backend development using Java (Spring Boot, Hibernate, Dropwizard) and related technologies Design and build scalable microservices supporting high-volume, highly available digital platforms Design, implement, and evolve RESTful APIs and service-to-service communication patterns Design and implement event-driven architectures (Kafka, asynchronous messaging) Design and maintain resilient integrations with internal and third-party systems (retry handling, idempotency, monitoring, operational support) Own and evolve backend event contracts, payload schemas, and service integrations, partnering with Product, Analytics, and Data Engineering to ensure downstream systems (CRM, lifecycle, reporting, analytics) receive reliable, well-structured data Drive API governance, service contracts, versioning strategies, and integration standards across the platform Support BAU while identifying opportunities to reduce technical debt, simplify legacy processes, and modernize the platform through service consolidation and architectural improvements Ensure high-performance, secure, observable, and maintainable services through best practices, automated testing, CI/CD, and production monitoring Lead production incident investigations, root cause analysis, and implementation of long-term preventative solutions Provide technical leadership through design reviews, pair programming, code reviews, and mentorship by contributing to hiring, onboarding, and career development of engineers What You'll Bring: 8+ years of professional software development experience with deep backend engineering expertise Bachelor's degree in Computer Science, Computer Engineering, Information Systems, or equivalent practical experience Advanced proficiency in Java using Spring Boot, Hibernate, Dropwizard, or similar enterprise frameworks Proven track record designing distributed systems and microservice architectures Demonstrated expertise in RESTful APIs and backend integration patterns Deep understanding of event-driven architectures and message brokers such as Kafka Solid working knowledge of relational databases including Postgres and Oracle Familiarity with distributed caching technologies such as Redis is considered an asset Hands-on background with containerization (Docker), orchestration (Kubernetes), CI/CD pipelines, Git-based workflows, and DevOps practices Strong understanding of observability, including logging, monitoring, metrics, tracing, and production diagnostics Demonstrated ability to lead technical discussions and drive architectural decisions across multiple teams Track record of mentoring and coaching engineers within Agile (Scrum/Kanban) environments Excellent written, verbal, and presentation communication skills in English, with the ability to convey technical concepts clearly to both technical and non-technical stakeholders Self-starter attitude with high ownership and accountability in complex, evolving environments Working knowledge of AWS and infrastructure-as-code practices Familiarity with mobile application architecture and mobile platform best practices Able to travel occasionally both domestically and internationally #LI-REMOTE This role spans a wide breadth of experience at Rush Street Interactive, welcoming candidates with diverse experiences, backgrounds, and locations. The pay range reflects potential variations in experience, skills, and location. The pay range does not reflect total compensation, which includes base pay, benefits, and/or bonuses. For candidates outside the US (Canada, Europe, Latin America), we take a locally informed approach to compensation and will share specific ranges based on your country of residence. Location Eligibility (for nationwide roles): Open to candidates across the U.S. Location Eligibility (for other roles): Location requirements may vary and will be specified in the job posting.

Canada Benefits

Comprehensive health coverage (medical, prescription drugs, vision, and paramedical services) Competitive dental plan with strong coverage for basic, major, and orthodontic services Annual Health Care Spending Account (HCSA) to support your personalized wellness needs 24/7 virtual healthcare access for you and your eligible dependents Life, disability, and AD&D insurance for financial peace of mind Wellness-focused perks including mental health support and rewards programs RRSP and company DPSP contribution, up to 100% of the first 4% Parental leave top up policy Paid vacation and sick time Pay Range for candidates in Canada: $124,000—$186,000 CAD What Makes Us Great: Comprehensive compensation Work-life balance initiatives Autonomy – we embrace personal freedom and responsibility Creativity – we are open to new ideas of how we can be better Growth – we want you to develop personally as well as professionally Top-notch professionals who are passionate about what they do People-oriented environment and supportive atmosphere As a rapidly growing company in an emerging industry, you’ll have a huge impact on our product and our company. We like proactive team members and strive to have a company of self-disciplined professionals who enjoy collaboration, having fun, and of course, achieving together what others believe to be improbable. We are dedicated to treating everyone with respect and to support your professional and personal growth. Rush Street Interactive is an equal opportunity employer and committed to a diverse and inclusive workplace. All qualified applicants will be considered for employment without regard to race, national origin, ancestry, sex, sexual orientation, sexual identity and expression, marital status, family status, lifestyle, age, culture, religion, military and veteran status, citizenship, or disability. Be at the forefront of this ground-breaking industry! Apply now! Rush Street Interactive uses AI-assisted tools at select stages of the hiring process to enhance efficiency, consistency, and communication. AI does not make hiring decisions - final decisions are made exclusively by our recruiting and hiring teams. Rush Street Interactive participates in E-Verify for U.S.-based positions. As required by federal law, we provide the following notices to all prospective U.S. employees: E-Verify Participation Notice (English/Spanish) Right to Work Notice (English/Spanish)