Senior Software Engineer
Builds and owns voice platform backend services, mobile SDKs for Android/iOS, testing tooling, and AI pipelines for real-time call intelligence, carrier integrations, and VoIP at scale. Requires 3+ years experience with TypeScript/Python, Node.js, DevOps basics.
About the job
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.
Skills
TypeScript, Python, Node.js, Docker, Terraform, Helm, Kotlin, Swift, REST APIs, Voip, Sip, Rtp, Webrtc, Databricks, Kafka
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