Senior Software Engineer I, L3 Messaging Team

CareMessage is a technology non-profit dedicated to improving health equity for low-income populations in the United States. They are seeking a Senior Software Engineer I for the Messaging Team to drive the technical direction of their messaging platform, which supports patient communication for healthcare organizations. The role involves owning complex features, mentoring engineers, and collaborating across teams to enhance patient engagement and health outcomes.

Responsibilities:

• You will own and drive the technical direction of key messaging platform features, collaborating with Product, Customer Success, Data, and Engineering to design and deliver solutions that deepen patient engagement and health outcomes
• You will design, build, and maintain backend messaging systems using Ruby on Rails, including SMS/voice delivery pipelines, consent management workflows, message scheduling and orchestration, and Twilio integration layers
• You will share team lead responsibilities with peers, including mentoring L2 engineers, leading technical design discussions, conducting code reviews, and helping set technical direction for the Messaging team
• You will contribute to architectural decisions that shape how we build and scale our messaging infrastructure, including delivery optimization, AI-driven message categorization, and multimedia messaging (MMS/RCS)
• You will provide technical training and documentation for messaging systems you build and maintain, enabling support teams to monitor, troubleshoot, and measure the impact of messaging features in production
• You will work closely with Product teams to understand requirements and lead technical input during solution definition, including ownership of technical scoping and active participation in Product Requirements Documents (PRDs)
• You will help improve the team over time through essential team rituals, such as Kickoffs, Retrospectives, and Technical Debt Reviews
• You will contribute to the team by participating in On-Call (PagerDuty) activities
• Within 1 month you will: Have a working familiarity with CareMessage's messaging platform, features, and API
• Understand our messaging infrastructure, Twilio integration, and Software Development Lifecycle
• Learn and follow CareMessage's engineering standards, coding best practices, and development processes
• Establish rapport with engineers on the team through Wiki contributions, 1:1 conversations, and Team Rituals
• Begin reviewing PRs and participating in technical design discussions
• Within 3 months you will: Be independently owning and delivering complex messaging features end-to-end with meaningful impact
• Have a strong understanding of our messaging architecture and have identified areas for improvement in our processes, systems, and tooling
• Understand our Company Objectives and Key Results and be able to articulate how the Messaging team directly impacts them
• Be actively mentoring L2 engineers through code reviews, pair programming, and technical guidance
• Have begun contributing to technical design decisions and architectural discussions
• Within 6 months you will: Be recognized as a technical leader on the Messaging team, having developed strong trust and rapport with peers and cross-functional partners
• Have full ownership of major messaging platform features from design through production support, driving projects that directly impact patient outcomes
• Share team lead responsibilities with peers, including leading technical design sessions, setting engineering standards, and guiding the team's technical roadmap
• Contribute your expertise in one or more strategic areas that drive value across the engineering department (e.g., delivery optimization, AI-driven messaging, MMS/RCS capabilities, consent management architecture)

Requirements:

• Minimum 5 years of hands-on software engineering experience, with strong proficiency in Ruby on Rails and JavaScript
• Minimum 5 years experience building, maintaining, and scaling backend systems, APIs, and services, with demonstrated experience owning complex features end-to-end
• Solid fundamentals of computer programming, including a good understanding of software development lifecycle, coding best practices, design patterns, object-oriented architecture, etc
• Advanced SQL proficiency with a strong analytical mindset, comfortable querying and working with large, complex datasets to uncover insights, troubleshoot issues, and inform technical decisions
• A commitment to supporting and fostering diversity and inclusion (We have a global team and you will regularly collaborate with people from a variety of walks of life.)
• Demonstrated ability to independently own and deliver complex projects end-to-end, break down large features into manageable tasks, mentor junior engineers, and influence technical direction within a team
• Growth-oriented mindset
• Outstanding written and verbal communication skills, especially in a fully remote environment
• Excellent ability to collaborate with technical and non-technical partners to support discovery, development, and testing phases of messaging platform features
• Experience working in teams where automated tests are an expected part of development, including writing and maintaining tests alongside production code
• Proven ability to work autonomously, proactively identifying challenges before they escalate, driving solutions independently, and maintaining clear, consistent communication with stakeholders to keep projects moving forward
• Experience with Twilio (SMS, Voice, or Messaging APIs) or similar messaging/communications platforms
• Experience with RCS (Rich Communication Services) or multimedia messaging (MMS)
• Experience with our tech stack: Ruby on Rails, JavaScript (React), PostgreSQL, Google Cloud Platform, background job processing (Sidekiq or similar)
• Experience with message queue systems, event-driven architecture, or high-throughput delivery pipelines
• Experience in healthcare technology or familiarity with messaging compliance requirements, including TCPA, opt-out management, consent workflows, A2P 10DLC, and The Campaign Registry (TCR)