Senior Software Engineer

What You'll Do

• Own voice platform backend services that make Hiya's voice intelligence work at scale — handling real-time call flows, carrier integrations, and VoIP infrastructure, with increasing exposure to AI-powered pipelines (STT, TTS, LLM) that drive our AI agents, consumer products, and carrier deals
• Build and evolve testing and validation tooling that gives Hiya confidence before a single real call is made in a new market — simulating calls, gathering results across real devices globally, and enabling the team to expand into new carrier networks without guesswork
• Drive delivery on Android and iOS SDK improvements that keep our platform connected to products and partners — shipping features, improving call quality metrics, and building the reliability that partners depend on
• Operate across the full stack with increasing autonomy — starting with well-scoped execution work and growing into end-to-end ownership of systems, features, and decisions as you build context and demonstrate judgment

What We're Looking For

Required:

• 3+ years of professional software engineering experience
• Strong depth in TypeScript or Python; demonstrated ability to work meaningfully in other languages
• Experience with Node.js backend development and modern web service patterns (REST APIs, async processing, event-driven systems)
• Familiarity with DevOps basics: containers (Docker), deployment workflows, and reading infrastructure configs (Terraform, Helm, or similar)
• Ability to work across Android or iOS code — you don't need to be a mobile specialist, but you can navigate a Kotlin or Swift codebase and make focused changes
• Strong written and verbal communication — you write clear tickets, clear PRs, and proactively flag blockers rather than going quiet
• Pragmatic judgment — you make sensible tradeoffs between speed and perfection and can explain why
• Autonomous on well-scoped work — once you understand the goal, you drive to completion without needing hand-holding
• Honest about what you don't know — you ask good questions early rather than disappearing and surfacing problems late
• Reliable throughput — you ship consistently and follow through on commitments
• Active use of AI tooling — you leverage AI-assisted coding as a force multiplier and have a point of view on where it creates real leverage in this kind of work

Preferred:

• Experience with VoIP or telephony (SIP, RTP, WebRTC) or interest in learning it
• Carrier or B2B platform context
• Experience with Databricks, Kafka, or streaming data pipelines
• Familiarity with AWS (DynamoDB, S3, Kinesis, EKS)

Compensation

Base Salary: $113,000-$197,000 Compensation is determined by role scope, skills, experience.