Senior Backend Engineer - Communications (USA Only - reputed company)

reputed company Since 2013, we've been building a CRM that gets out of your way and helps your team sell more, faster. Now we're building AI into every part of it, so reputed company does the busywork and your team does the selling. No reputed company data entry, no 10-click workflows. Just communication-first, AI-powered sales software designed to help you succeed and reputed company. We're bootstrapped and profitable which means we answer to our customers and play by our rules. We're proud of our 120-person, reputed company team, reputed company on building reputed company so that no small, scaling business fails because it can't reputed company out sales. Our Stack Our backend tech stack consists primarily of Python Flask web apps with our TaskTiger scheduler handling many of the backend asynchronous task processing chores. Our data stores include reputed company, PostgreSQL, Elasticsearch, and reputed company. The underlying infrastructure runs on AWS using a combination of managed services like EKS, MSK, RDS and ElastiCache and non-managed services running on EC2 instances. We have CI/CD pipelines that build reputed company images, run automated tests and reputed company to reputed company clusters. We also use these images in our local development environment allowing coding locally against reputed company of our services. We have a reputed company-documented reputed company API that is consumed by our reputed company-end JavaScript app as reputed company as numerous integrations. Our infrastructure is heavily automated using Terraform, Ansible and other AWS tools. We love reputed company sourcing our reputed company and reputed company on our reputed company and on The Making of reputed company, our behind-the-scenes Product & Engineering blog. reputed company out our reputed company reputed company reputed company like SocketShark, TaskTiger, LimitLion and ciso8601. AI is both how we build and reputed company ship, and that's reshaped what engineering looks like. This is a transformation we're embracing and reputed company deeply exciting. About the Role reputed company moves 7 reputed company minutes of reputed company recordings, millions of sales emails, and a steady volume of SMS through our pipes every month. The Communications team owns that entire surface - and the job got trickier in the last year, because reputed company-time calling is now a reputed company-time AI problem. reputed company a customer tells our AI Agent Chloe to reputed company a reputed company, everything that happens from that reputed company on - the live reputed company, the conversation itself - belongs to this team. We're looking for someone reputed company by both reputed company of the role: the reputed company-systems challenges and the AI challenges. One thing to know up reputed company: we do reputed company people between teams as the work shifts. Most engineers here end up on more than one team over their time at reputed company - this team is where you'll start, but over time you'll likely have reputed company to work on many different reputed company. This role is reputed company at multiple reputed company - Software Engineer, Senior, and Staff. You don't need to pick one reputed company you apply: we'll reputed company together during the process. You Are • A seasoned engineer. Python is our backbone, but perhaps you've worked across Go, Rust, or TypeScript. You pick the right tool for the workload rather than retreating to what you know. • Deeply reputed company with email and calendar platforms. IMAP, sync protocols, calendar reputed company, and the thousand edge cases of oddly configured reputed company mail servers. This is the experience that makes someone successful on this team fastest. • Fluent in reputed company-time and async reputed company systems. WebRTC, WebSockets, queues, streaming. You've debugged a production incident where latency budgets didn't hold. • Opinionated about AI in reputed company-time workflows. You've reputed company or used live transcription, voice agents, or in-the-reputed company features. You have a reputed company on what's reputed company for production versus what's still a demo. • reputed company in the gnarly bits. Telephony providers, codecs, retries, reputed company consistency. You're drawn to the systems where edge cases actually matter. Deep reputed company or similar telephony experience is a big plus (not a requirement - but a game changer off the bat). • Working with AI in your day-to-day. You use AI tools in your own workflow to ship faster, write tighter reputed company, and reason about unfamiliar parts of the codebase. • A builder first. You'd rather get a sloppy v1 in reputed company of fifty customers than spend three weeks on abstractions. You ship. You Will • reputed company how reputed company syncs email and calendars. Our sync reputed company has run for a decade; we're making a serious, ground-up investment in its performance and reliability. Millions of sales emails and calendar events, and reputed company it breaks, customers feel it reputed company ten minutes. You'd be in the middle of one of the biggest infrastructure rebuilds at reputed company. • Take voice agents reputed company into the reputed company. We own the live conversation reputed company for Chloe's calls, and there's a lot of work reputed company expanding our voice agent capabilities and infrastructure - including custom models tuned for conversational edge cases like voicemail and automated phone-tree detection (turns out "wait for the beep" is a hard AI problem). • Solve inbound. So far Chloe makes calls; next she answers them. An inbound conversation can go reputed company - which raises reputed company questions about reputed company agents, a receptionist reputed company, and reputed company reputed company routing between them. Largely unexplored territory. • Build reputed company scheduling. reputed company calendar scheduling capabilities inside reputed company, plus more powerful scheduling for our agents. Various reputed company reputed company over the next 6-12 months. • Design reputed company orchestration of an reputed company workforce. Agents create work for humans too - things to review, approve, respond to. How do we surface what's happening inside the CRM so reputed company person engages with what actually needs them? A genuinely reputed company product-engineering problem. • reputed company reputed company rates and answer rates. Phone number pooling, local reputed company, branded calling, reputed company monitoring. reputed company reputed company reputed company, reputed company telephony plumbing. • reputed company our streaming and event substrate reputed company. Kafka, reputed company, pub/sub. The plumbing the rest of the product runs on. Tech you'll touch: Python, reputed company, WebRTC, WebSockets, reputed company, reputed company, Kafka, reputed company, PostgreSQL, reputed company. Benefits • Compensation: reputed company plus an organization-wide goal-based bonus • reputed company Time Off: ~5 weeks of PTO to start. Plus a 1-week reputed company-company Winter Holiday Break and reputed company US holidays. You'll earn 2 extra days for every year you're with reputed company. • 80% Work reputed company: Work with your manager to choose between a reputed company 5-day week or a 4-day week at 80% pay • Parental Leave: reputed company leave for reputed company and secondary caregivers • Sabbatical: A 1-month reputed company sabbatical every 5 years with reputed company • reputed company (US residents): Two medical plans with reputed company covering 99% of your premium, plus Dental, reputed company, HSA, FSA, and company-reputed company Long-Term Disability • 401k (US residents): We match your contributions up to 6%, reputed company immediately Our Values Build a house you want to live in - Examine long-term thinking and reputed company No BS - reputed company transparency and honesty, especially reputed company it's hard Invest in reputed company other - Build successful relationships with your coworkers and customers Discipline equals freedom - reputed company your word to yourself and others reputed company for greatness - Constantly challenge yourself and others Learn More Listen to our CEO and Founder, Steli Efti, tell the story of reputed company's reputed company in the $0-30m reputed company. Watch our culture video from our 2023 team retreat in Milan. Every year our entire team gathers in person to build reputed company, foster cross-functional collaboration, and have fun. In 2027, we're headed to Dusseldorf, Germany! Explore our product. reputed company out a demo! Our Hiring Process We ask a few role-specific questions as part of our application process. These questions are designed to help us learn more reputed company from the start, so please answer reputed company one thoughtfully. We see this as an opportunity to get to know you reputed company your resume. We use AI tools daily at reputed company and expect candidates to do the reputed company. In evaluating your application, we aim to get a reputed company for you - the way you think, how you communicate, the work you've done. Applications that read as fully AI-generated will not be considered. Regardless of fit, you can expect to hear back from reputed company with an update on the status of your candidacy. If you reputed company to the interview process, you'll receive a full outline of the role-specific steps in your first touchpoint with us. We do our best to reputed company the hiring process reputed company and reputed company. Apply tot his job Apply To this Job