Job title: Senior Software Engineer
Job type: Contract
Contract Length: 12 months
Rate: $70-90 per hour
Role Location: United States

The Company:

A mission-driven healthcare technology organization focused on improving health equity for underserved populations across the United States. Through a scalable patient engagement and interoperability platform, the organization partners with healthcare providers to increase access to care, improve clinical outcomes, and address social drivers of health.

The engineering team operates in a fully distributed environment and is scaling its integration capabilities to connect with leading EHR systems and healthcare data platforms. The team values secure, reliable, and maintainable engineering practices, with a strong emphasis on interoperability standards and cross-functional collaboration.

You’ll join a collaborative, high-performing engineering team that works closely with Product, Customer Success, and external healthcare partners to deliver meaningful technical solutions that directly impact patient outcomes.

Role & Responsibilities:

We’re seeking an experienced Senior Software Engineer with strong backend development experience to design, build, and scale reliable messaging and integration systems that power communication workflows across healthcare platforms.

The ideal candidate has deep experience building backend services, APIs, and distributed systems, and brings a strong sense of technical ownership, system reliability, and continuous improvement. Experience working with healthcare integrations, messaging infrastructure, and data-driven decision making is highly valued.

You will collaborate closely with engineering, product, customer success, and data teams to deliver scalable messaging workflows that improve patient engagement and operational outcomes.

Key Responsibilities:

• Design, build, and maintain scalable backend services using Ruby on Rails, JavaScript, and relational databases, supporting high-volume messaging workflows, APIs, and system integrations.
• Develop and optimize messaging pipelines that support SMS, voice, and automated communication workflows, ensuring reliable delivery, consent management, scheduling, and orchestration of communications.
• Build and maintain secure API-to-API integrations that connect messaging platforms with external systems and services, ensuring reliable data exchange and workflow automation.
• Collaborate with engineering teams to design and evolve scalable messaging infrastructure, contributing to architectural decisions related to delivery optimization, system performance, and event-driven communication workflows.
• Leverage advanced SQL and analytical thinking to investigate system behavior, troubleshoot production issues, analyze delivery performance, and inform technical decisions with data.
• Partner closely with Product, Customer Success, Data, and Engineering teams to gather requirements, contribute to technical documentation, clarify workflows, and design messaging features that support business and user needs.
• Provide technical mentorship through code reviews, design discussions, and collaborative development, helping guide engineering best practices and supporting the growth of other engineers on the team.
• Write and maintain automated tests alongside production code, ensuring backend services are secure, reliable, and production-ready.
• Create clear technical documentation and internal enablement resources that help teams monitor, troubleshoot, and support messaging systems in production.
• Participate in on-call rotations and incident response, supporting messaging infrastructure to maintain high availability and performance.
• Actively contribute to engineering culture through technical reviews, retrospectives, architecture discussions, and technical debt management, helping evolve platform capabilities as the system scales.

Core Requirements

• Minimum 5 years of hands-on software engineering experience, with strong proficiency in Ruby on Rails and JavaScript
• Minimum 5 years of experience building and scaling backend systems, APIs, and services
• Strong understanding of software development lifecycle, design patterns, object-oriented programming, and engineering best practices
• Advanced SQL proficiency with the ability to analyze large datasets to troubleshoot issues and inform technical decisions
• Experience designing and supporting high-throughput backend systems and distributed architectures
• Experience working in environments where automated testing is a core development practice
• Demonstrated ability to independently own complex features end-to-end, from technical design through production support
• Strong collaboration skills across technical and non-technical stakeholders
• Excellent written and verbal communication skills in a fully remote environment
• Growth-oriented mindset with strong attention to system reliability, scalability, and engineering quality

Preferred Experience

• Experience working with messaging and communication platforms (e.g., SMS, voice, or messaging APIs)
• Experience designing event-driven systems, message queues, or high-throughput delivery pipelines
• Experience with Ruby on Rails, JavaScript (React), PostgreSQL, and cloud platforms
• Experience working with healthcare technology platforms or healthcare data integrations
• Experience contributing to API design improvements, messaging delivery optimization, or automated testing strategies
• Familiarity with messaging compliance requirements such as TCPA, consent management workflows, opt-out handling, or A2P messaging frameworks

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Our Commitment to Diversity, Equity, and Inclusion:
Signify’s mission is to empower every person, regardless of their background or?circumstances, with an equitable chance to achieve the careers?they deserve. Building a diverse future, one placement at a?time. Check out our DE&I page here