Senior Site Reliability Engineer

We believe communication belongs to everyone. We exist to democratize phone service. Halcyon Labs is evolving the way the world connects and that's because we're made up of people with curious minds who bring an optimistic, yet critical lens into the work we do. We're the largest provider of free phone service in the nation. And we're just getting started. Join us in our mission to break down barriers to communication and free the flow of conversation for people everywhere. Halcyon Labs is looking for motivated Site Reliability Engineer to own infrastructure, monitoring, logging, ci/cd, reliability and everything in between! This role is about impact at scale. You’ll shape how Halcyon Labs builds and operates its systems in an AI-first environment where intelligent tooling is embedded into everyday engineering practice. Using AI is not optional, it’s expected. From design and architecture to implementation, testing, debugging, documentation, and operational analysis, you will actively leverage AI tools to increase velocity, improve code quality, and make better technical decisions. We provide a robust suite of AI-powered development tools and workflows to support you, and we expect you to continuously evolve how you use them to raise the bar for efficiency, clarity, and product excellence across the organization. What You'll Do Ensure System Reliability: Design, build, and maintain scalable, resilient, and highly available systems to support Halcyon Labs ’s infrastructure and services. Automation & Infrastructure as Code: Develop and maintain automation using Terraform, Ansible, and other tools to enable efficient deployment, scaling, and operations of cloud-based systems (AWS preferred). Incident Response & On-Call Support: Participate in an on-call rotation, troubleshoot issues, and drive incident resolution to minimize downtime and improve system performance. Conduct post-mortems and implement corrective actions to enhance reliability. Performance Monitoring & Optimization: Implement and improve observability tools, logging, and monitoring solutions to identify and mitigate potential system issues proactively. Collaboration & Cross-Team Engagement: Work closely with software engineers, DevOps, and product teams to align technical efforts with business objectives and improve system reliability from development to production. Continuous Improvement: Identify areas for improvement in architecture, automation, and operational practices. Contribute to the design and implementation of new SRE best practices. You'll be a great fit if you have: Experienced in SRE/DevOps: You have 5+ years of experience in an operationally focused role, such as SRE, DevOps, or Infrastructure Engineering, with a deep understanding of reliability, scalability, and performance optimization. Proficient with Key Technologies: Hands-on experience with AWS, GitHub, Terraform, Ansible, or similar tools to build and manage cloud infrastructure efficiently. Incident Management Expert: You are comfortable handling production incidents, analyzing root causes, and implementing long-term fixes to prevent recurrence. Automation & Observability Focused: Passionate about reducing toil through scripting and automation while ensuring robust observability using logging, metrics, and monitoring tools. Collaborative & Impact-Driven: You enjoy working cross-functionally with engineers, product teams, and leadership to drive meaningful improvements to system reliability. AI usage: We use artificial intelligence (AI) tools to support parts of the hiring process, such as reviewing applications, analyzing resumes, or assessing responses. These tools assist our recruitment team but do not replace human judgment. Final hiring decisions are ultimately made by humans. If you would like more information about how your data is processed, please contact our Talent Team. More about Halcyon Labs Our culture We’re proud of the culture that we’ve built at Halcyon Labs , but one of the most common questions we hear is ‘how do you continue to sustain it as the world and the company continues to change?’ The reality is that we’re only able to keep up because each and every TextNovian contributes to our culture through being involved, by living our values, sharing feedback, embracing change and more! Our values Customer Obsessed We strive to have a deep understanding of our customers. Do Right By Our People We treat each other with fairness, respect, and integrity. Accept the Challenge We adopt a "Yes, We Can" mindset to achieve ambitious goals. Act Like an Owner We treat this company like it's our own... because it is! Give a Damn We are deeply committed and passionate about our work and achieving results. Our benefits and more This is a brief overview of the benefits that Halcyon Labs offers its employees. More complete details can be found in Halcyon Labs ’s Benefit Guide and legal plan documents, which are available to employees on or shortly after their start date with Halcyon Labs . The benefits listed herein