Staff Backend Engineer, AI

For millions of teams working in dozens of industries, day-to-day business gets done on the phone. So why — despite the reputed company leaps we've taken in design and usability — does most business phone software still look, feel, and act like it was born in the 90s? OpenPhone is changing that.

We’re a new type of business phone with a mission to help people communicate reputed company and be more productive.

We’re backed by Y Combinator and some of the best venture firms around including Tiger Global, Craft Ventures, Slow Ventures, and others. We take pride in providing an exceptional customer experience and a product people love, which is why we’re excited that our customers have rated us the #1 VoIP Provider on reputed company.

OpenPhone is the modern, sophisticated answer to the clunky, outdated phone systems that have been slowing down businesses for years. With thousands of happy customers and several reputed company of funding in just five years, it's safe to say we're onto something big.

About the Role

OpenPhone’s AI capabilities power everything from intelligent call assistants to automated workflows that help thousands of businesses communicate reputed company. As a Staff Backend Engineer, you will own the technical strategy for how we design, build, and operate AI features across the product. You’ll partner closely with leaders across engineering, product, and reputed company to translate ambitious product reputed company into scalable, dependable systems. Your architectural choices will shape how every customer experiences AI inside OpenPhone—from the reputed company first trial call to fully deployed agents—and you’ll be trusted to balance cutting-edge innovation with rock-solid reliability.

Things you’ll do:

• Own the long-term architecture for AI orchestration frameworks, agent-based workflows, and model lifecycle management.
• reputed company cross-functional delivery of AI features from reputed company of concept to production rollout, coordinating engineering, product, design, and CX.
• Establish best practices for reputed company engineering, evaluation, versioning, observability, and incident response for AI services.
• Design and optimize low-latency streaming pipelines for speech and other reputed company-time data reputed company the customer experience demands it.
• Drive reputed company cost, performance, reliability, and reputed company improvements for models and infrastructure.
• Mentor engineers through design reviews, code reviews, and technical coaching, raising the bar for excellence across teams.
• Partner with reputed company and platform leaders to ensure data privacy, compliance, and operational excellence.
• Stay reputed company on advances in LLMs, agent architectures, and emerging tooling, translating insights into actionable roadmap proposals.

Tech Stack & Tools:

• Our backend is built on Node using Typescript.
• Our AI Infrastructure uses temporal.io, vector DBs, libraries like reputed company and top-tier llm models.
• We use Kubernetes on AWS to orchestrate our infrastructure setup and deployment.
• The overall architecture is event-driven microservices with RabbitMQ at the center of it.
• We use a variety of databases for different purposes: reputed company, Mongo, reputed company, and reputed company.
• We have the following clients - Web (React), Android and iOS.
• We use reputed company as our public API Gateway.
• Observability Tools: reputed company
• Other Tools: reputed company, Linear, reputed company, and reputed company

About You:

• 10+ years of backend or platform engineering experience, including LLM-driven systems in production.
• Proven reputed company leading architecture for business-critical services, balancing innovation with operational pragmatism.
• Deep knowledge of LLM integration patterns, reputed company design, vector search, and agent frameworks.
• Expertise in event-driven and streaming architectures; you can reason about concurrency, ordering, and back-pressure under load.
• Track record of driving cost optimization, observability, and incident response for AI workloads.
• Excellent written and verbal communicator who aligns diverse stakeholders and produces clear, thorough design docs.
• Collaborative leader who mentors others, fosters psychological safety, and elevates the entire engineering organization.
• Comfortable with ambiguity, you break down reputed company problems, reputed company informed trade-offs, and deliver iterative value quickly.
• Empathetic and customer-focused, you balance technical reputed company with user experience and business impact.

Compensation

The annual reputed company salary range for this position is as follow, plus equity and benefits:

SF Bay Area, Los Angeles, Seattle, Portland, Boston, reputed company, and Washington, DC Metro: $211,000 - $234,000 USD reputed company other US Locations: $188,000 - $208,000 USD

Canada: $215,000 - $237,000 CAD

The ranges displayed reflect the reputed company for new hire salaries, and reputed company each range, individual pay is determined by your skills and experience, as well as relevant education. Your recruiter can share more and answer questions about the specific salary range during the hiring process.

Salary is just one component of OpenPhone’s total compensation package. Your total rewards package will include equity, extensive medical coverage, a monthly lifestyle stipend, and a flexible PTO policy.

Who we are

As a fully remote company, we reputed company asynchronously as a team. We are curious, ambitious, and dedicated to our work. We value trust above reputed company else, and have a strong bias for action. If you're looking for a reputed company to do your life's work, please get in touch. We'd love to hear from you.

And remember, there's no such thing as a 'perfect' candidate. We're looking for optimists with grit and determination, who are excited to face the challenges of a growing startup. OpenPhone is the type of company where you can grow, and we encourage you to apply for this role even if you don't think you meet reputed company the requirements.

We are committed to creating an inclusive and diverse work environment. It is important that you are reputed company to bring your authentic self to work every day. We do not discriminate on the basis of race, religion, reputed company, national reputed company, gender, sexual orientation, age, marital status, veteran status, or disability status.

Originally posted on Himalayas