Senior Full Stack Engineer, Realtime & Voice

This is a fully remote position, open to applicants in Ireland.

📋 Description

• Take full ownership of the voice channel from start to finish, encompassing telephony and CPaaS integrations.

• Create streaming speech-to-text and text-to-speech pipelines.

• Develop real-time model orchestration while managing latency and quality budgets.

• Implement product features across React/TypeScript front ends, Scala and Python backend services, and GCP infrastructure.

• Design for multi-tenant scalability through configuration instead of code forking.

• Establish safety and compliance mechanisms, including guardrails, content filtering, and PII redaction integration points.

• Ensure the reliability of revenue-critical deployments through observability, alerting, incident response, and SLA performance management.

• Develop platform capabilities for partner telephony integrations and their go-lives.

• Conduct code and architecture reviews.

• Provide mentorship to engineers.

• Assist in the development of HTS Assist, Hopper's intelligent AI travel assistant for managing flight changes, cancellations, refunds, and bookings via chat and voice.

⛳️ Requirements

• Over 6 years of experience in software engineering.

• Senior-level ownership of production systems with a true full-stack skill set.

• Practical experience with real-time systems, such as voice applications, WebRTC/SIP, streaming media, or similar low-latency products.

• Proficient in React and TypeScript.

• Strong backend expertise in Scala or another JVM language and/or Python.

• Experience with cloud infrastructure on GCP or AWS.

• Proven track record in designing, building, and maintaining RESTful APIs, microservices, or event-driven systems.

• Familiarity with using AI coding tools as a standard part of the development workflow.

• Experience with SLAs, observability, on-call rotations, and rollback plans.

• Ability to make practical trade-offs and deliver iteratively.

• Strong communication skills across product, design, and operations teams.

• Experience with conversational AI or LLM orchestration is a plus.

• Background in cloud telephony or CPaaS is advantageous.

• Experience in customer service, CRM, contact centers, or workflow automation is an added benefit.

• Previous experience in travel industry technology is a plus, though not mandatory.

• Must operate as a self-employed individual or through a Personal Service Company (PSC).

• Must provide proof of valid business registration and appropriate professional indemnity insurance.

• Must adhere to Irish tax, PRSI, and VAT regulations.

🏝️ Benefits

• Competitive salary.

• Pre-IPO equity packages.

• Carrot Cash travel stipend.

• FlexDesk All Access Pass.

• Work-from-home stipend.

• Entrepreneurial culture.

• Open communication with management and company leadership.

• Small, dynamic teams that create a significant impact.