Senior Software Engineer

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Senior Software Engineer

Full Time TECHNICAL Elmwood Park, NJ, US

30+ days ago Requisition ID: 1215

Salary Range: $165,000.00 To $195,000.00 Annually

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.

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

Bachelor’s degree or equivalent experience in a technical field

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
• Unlimited PTO
• Remote work options
• Employee Discounts

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

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.