ELLKAY started out providing connectivity solutions to laboratories and within a few years, grew to also provide data management solutions to ambulatory organizations. ELLKAY is now a trusted data management partner in five healthcare segments. ELLKAY’s solutions continue to serve laboratories and ambulatory practices and have expanded to empower hospitals and health systems, healthcare IT vendors, ambulatory practices, health plans, and other healthcare organizations with cutting-edge technologies and solutions that drive their growth and interoperability strategies.
Today, ELLKAY remains true to our core values, building strong partner relationships and offering unparalleled service and support while providing innovative, scalable solutions to the challenges our customers face in today’s data-rich world.
ELLKAY's experience, customer-focused approach, and reputation for innovation, speed, and accuracy differentiate ELLKAY as a premier partner for your interoperability needs and data management strategy.
Job Description:
ELLKAY is seeking a Senior Software Engineer to play a crucial role in advancing our core healthcare IT systems through the development of scalable and secure software solutions. As a senior individual contributor, this position involves working closely with other engineering team leaders to architect robust backend systems, guide technical direction, and enhance software delivery processes.
Essential Duties & Responsibilities:
Take a technical leadership role in building and scaling national-scale healthcare data exchange systems
Deliver extremely reliable, scalable, and observable software capable of supporting massive transaction volumes
Lead architecture and implementation of highly scalable, API-driven systems powering healthcare data exchange at scale
Provide practical, balanced technical guidance—considering both engineering best practices and business priorities
Guide design decisions on fault tolerance, throughput optimization, and system resilience
Contribute to CI/CD pipeline improvements to maintain quality while accelerating delivery
Collaborate with product and implementation teams to shape technical execution
Document technical designs, workflows, and release notes for cross-team and customer consumption
Participate in and lead design and code reviews
Mentor engineers through pairing, design discussions, and pull request feedback
Qualifications:
10+ years of software engineering experience, with a focus on building large-scale, high-throughput distributed systems
Have a balanced, pragmatic approach—able to apply the right level of engineering rigor to meet business needs
Experience designing and scaling API-driven systems with extreme reliability and throughput requirements
Experience with event-driven, queue-backed, and asynchronous processing architectures
Skilled in observability practices including distributed tracing, metrics, and log aggregation
Strong background in Microsoft SQL Server and experience optimizing relational data access
Familiar with other database technologies (NoSQL, distributed databases)
Deep experience with the .NET ecosystem, with exposure to other technical stacks as a plus
Familiar with containerization, cloud-native architectures, and Kubernetes deployment patterns
Strong architectural skills with a focus on reliability, scalability, and performance
Proven ability to lead architecture across multiple systems and teams
Experience writing and optimizing parallel and asynchronous code
Strong knowledge of IHE profiles, FHIR, and other healthcare data exchange standards is a significant plus
Front-end development experience with modern JavaScript/TypeScript frameworks is a plus but not required
Bachelor’s degree or equivalent experience in a technical field
Benefits:
ELLKAY offers a comprehensive and competitive benefit package that starts day one!
Including:
- Medical, Dental, and Vision benefits
- Employer-paid Life and LTD
- 401k w/ matching – once eligibility is met
- Work/life balance
- Paid Volunteer Program
- Flexible working hours
- Generous FTO
- Remote work options
- Employee Discounts
- Parental Leave
- Gym membership / Exercise class stipends
Our awesome culture includes:
- Working with talented, collaborative, and friendly people who love what they do
- Professional growth within
- Innovation environment
- On site in HQ Free daily lunches
Awards:
- 2025 Top Workplaces Employee Appreciation
- 2025 Top Workplaces Employee Well-Being
- 2025 Top Workplaces Professional Development
- 2025 Top Workplaces Leadership
- 2026 USA Today Top Workplaces
- 2026 NJ Top Workplaces
Additional information
At ELLKAY, we are committed to operating as a hybrid workplace, offering employees flexibility in how they structure their time between in-office and remote work. We recognize the significance of fostering connections, collaboration, and creativity within our office culture and its positive impact on our business. Our philosophy of operating as a hybrid workplace underscores our dedication to enabling employees to tailor work-life balance to their individual preferences. For those who do not live within 40 miles of one of our offices, we are open to considering remote work for candidates whose skills and experience strongly align with the role. While we prioritize a hybrid work environment for most roles, we understand the importance of flexibility and are open to remote work for specific positions and specialized skill sets.
For more information on our company, visit ;
ELLKAY LLC is a Smoke-Free Workplace.
ELLKAY, LLC provides equal employment opportunities to all employees and applicants for employment and prohibits discrimination and harassment of any type without regard to race, color, religion, age, sex, national origin, disability status, genetics, protected veteran status, sexual orientation, gender identity or expression, or any other characteristic protected by federal, state or local laws.
Compensation Range: $165,000-$195,000
