Senior Software Engineer - Full Stack

Crisis Text Line is a nonprofit organization that provides a crisis care platform to support individuals in need. They are seeking a Senior Full-Stack Software Engineer to design, build, and operate core platform features, ensuring high-impact solutions while collaborating with product and design teams.

Responsibilities:

• Own features end-to-end: Design, build, test, ship, and maintain full-stack features in production
• Solve hard problems: Break down ambiguous technical challenges and deliver scalable, secure solutions
• Champion security: Contribute to authentication, authorization, and platform security practices
• Build for scale: Improve service architecture, APIs, and system reliability as we grow globally
• Collaborate deeply: Partner with product, design, and engineering peers to deliver high-impact solutions
• Raise engineering quality: Improve testing, CI/CD, observability, and developer workflows
• Support production: Participate in on-call rotation to ensure platform reliability

Requirements:

• 6+ years of experience programming in a high-level language
• 4+ years of experience in full-stack development
• Experience working with telemetry tools such as Datadog or Grafana
• Experience working with Terraform is a plus
• Experience working within cloud environments (AWS)
• Hands-on experience with PHP (Symfony framework), Node.js, React/Redux, and Golang
• Strong experience working with relational databases such as MySQL and PostgreSQL, as well as caching technologies like Redis
• Experience building and maintaining REST-based APIs and GraphQL APIs
• Strong problem-solving skills, ability to communicate analysis and reasoning clearly
• Experience acting as a security champion, including threat modeling, vulnerability remediation, or leading secure coding practices
• Hands-on experience building or supporting authentication and identity systems (OAuth, SSO, JWT, RBAC, identity providers)
• Experience designing or evolving service-oriented or API-first architectures
• Experience in improving or owning CI/CD infrastructure, deployment automation, and release processes
• Familiarity with infrastructure-as-code, especially Terraform
• Experience designing for high availability, performance, and observability at scale
• Demonstrated ability to mentor other engineers, elevate code quality, and contribute to architectural discussions
• Background working in mission-driven, regulated, or high-trust environments (e.g., healthcare, nonprofit, financial services)
• Strong product mindset with the ability to translate user and business needs into clean, scalable technical solutions