Senior Remote Javascript Developer Jobs in Illinois

Note - this is a remote position. We are open to remote candidates located in the US.

ECP is a market-leading SaaS solution that enables senior living communities to better care for their residents. ECP is used in over 8,000 communities around the world. We're looking to further expand by increasing the number of customers that use our software and increasing the scope of how we serve our customers by developing and releasing new products.

As a talented and experienced developer, you will jump right in and play a lead role as we build new applications, enhance and expand our product, improve our processes, and continuously tune and modernize our tech stack. You will join a talented and committed team, and you will have constant opportunities to learn about our business, work with state-of-the-art tools and technology, and build solutions that fuel our growth.

We're looking for an experienced Senior Software Engineer to join our agile product engineering team. This role will focus on architecting and developing a mobile-responsive offline-capable web application leveraging React, NodeJS (NestJS), and modern Progressive Web App (PWA) technologies.

The ideal candidate has deep expertise in React, TypeScript and NodeJS architecture, has built resilient offline-first systems, and thrives in a collaborative, high-impact environment focused on improving healthcare workflows.

• Architect and develop scalable, performant applications using React, NodeJS (NestJS), and supporting technologies
• Design and implement offline-first and PWA capabilities, including caching strategies, data synchronization, and background data handling for critical workflows
• Collaborate closely with product managers, UX designers, and engineering teams to translate complex requirements into elegant technical solutions
• Contribute to the evolution of the architecture, ensuring security, performance, and maintainability across the product ecosystem
• Guide and mentor developers on best practices for modern web development, testing, and continuous integration
• Drive technical decision-making, ensuring architectural consistency and alignment with long-term product goals
• Participate in Agile ceremonies (sprint planning, reviews, retrospectives) and contribute to continuous improvement efforts
• Stay current with emerging technologies, frameworks, and industry best practices relevant to PWA, offline apps, and scalable NodeJS systems
• Collaborate with DevOps teams to optimize deployments and ensure high availability and reliability of cloud-hosted applications

• Bachelor's or Master's Degree in Computer Science, Engineering, or related field
• 7+ years of professional software development experience, including 3+ years in a technical or architectural leadership capacity
• Expert-level proficiency with NodeJS and frameworks such as NestJS
• Strong front-end experience with React, modern JavaScript (ES6+), and responsive web design principles
• Proven experience architecting and implementing PWA and offline-first web applications, including use of Service Workers, IndexedDB, and caching strategies
• Strong understanding of RESTful APIs, microservices, and event-driven architecture
• Experience with SQL and NoSQL databases (e.g., PostgreSQL, MongoDB)
• Experience developing in an agile environment using modern CI/CD pipelines (e.g., GitHub Actions, Jenkins, or similar)
• Strong communication and leadership skills, with the ability to collaborate across disciplines and mentor others
• Passion for healthcare innovation and building software that meaningfully improves patient outcomes
• Legally authorized to work in the United States without sponsorship

• Experience with mobile web optimization and cross-device responsive design
• Familiarity with cloud platforms (AWS, Azure, or GCP) and containerization (Docker, Kubernetes)
• Knowledge of FHIR/HL7 standards or experience in healthcare software is a plus
• Exposure to offline data synchronization patterns and conflict resolution strategies