Senior Software Engineer

At Replicant, we believe AI should work for people, starting with customer service. That’s why we built a platform that helps contact centers resolve more requests, proactively identify issues, and improve agent performance with AI-powered conversation intelligence and AI agents that act like your best reps.

Our AI agents handle millions of calls every month for Fortune 500 companies and high-growth innovators. From processing payments to booking appointments and authenticating users, they help customers get what they need instantly, 24/7. Meanwhile, our real-time conversation insights help contact center leaders coach better and improve every interaction.

We are leading the shift from legacy systems to AI-first service, powered by large language models (LLMs) and designed for enterprise scale, security, and empathy. If you’re excited by the potential of LLMs, voice AI, and building category-defining technology with a kind, ambitious team, you’ll love it here.

Joining Replicant means working on technology that makes customer service both better and cheaper, for a gigantic market of millions of potential customers. We solve huge challenges with a small team, so every improvement you will ship makes a huge difference.

We’re looking for a Full Stack Software Engineer to join Replicant’s engineering team! As part of our team, you’ll design and deliver technology that powers natural, human-like conversations at scale, helping companies reduce wait times, improve customer satisfaction, and empower representatives to focus on complex problems. You’ll build rich user experiences and backend services that enable customers to design, launch, and monitor these AI-powered conversations. You’ll collaborate closely with our product and machine learning teams to ensure our customers can build compelling and delightful conversations for their callers. Our stack includes TypeScript, Node.js, React, and Python in Kubernetes on GCP.

Please note that the posted compensation ranges for US and Canada cover all levels we may hire for this role. Final compensation is set at the level determined by the interview process.

What You’ll Do

Build new features powering millions of daily conversations on Replicant’s core AI voice and chat products

Ship full stack end-to-end features with high impact in days, not weeks or months

Integrate automatic speech recognition, text to speech, and conversational AI model improvements into Replicant’s products

Refractor, optimize, and debug production systems balancing latency, cost, and user delight

Participate in regular on-call rotations, monitoring live production systems

Continuously improve systems based on performance metrics and customer feedback

Shape a fast-moving culture that emphasizes knowledge sharing and mentorship across distributed systems, high-availability design, and user experience for enterprise-scale AI

Participate in team and company-wide office events; travel required

What You’ll Bring

5+ years of full-stack software engineering experience, ideally in SaaS, AI, or complex real-time systems

Proven experience owning and shipping elegant, maintainable, continuously improving solutions that scale to millions of users

History of raising the bar for great engineering in your teams, with strong collaboration skills favoring impact over process

Strong communication skills that build trust with teammates and stakeholders

Mastery of AI tools for writing, improving, debugging, and refactoring large code bases

Demonstrated experience designing and implementing quality testing for systems you’ve built, including automated, manual, and AI

Mastery of one or more of the following

TypeScript and frontend frameworks (React or similar)

Node.Js for production-grade backend systems

Python

Rust, LLM prompt engineering, Google Cloud Services, Kubernetes

Familiarity with all of the following

Relational databases (MySQL, PostgreSQL)

Cloud environments (AWS, GCP, or Azure) and CI/CD pipelines

Metrics, logging, and monitoring

Enthusiasm for AI, machine learning, telephony