Senior Software Engineer (Lifecycle & Messaging Platform)
Posted Updated
- In a two-sided marketplace, nearly every commitment made to a customer or a provider is delivered as a message: confirmations, time-sensitive notifications to professionals, outcome follow-ups that feed our quality measurement, shared summaries for family members, and longer-horizon engagement
- Because consumer messaging in our category is regulated, the platform that sends these messages is also the system that enforces consent, preferences, and suppression
- You will design, build, and own that platform across email, SMS, push, and in-app channels
- Design and build the messaging platform: triggering, routing, templating, retries, deduplication, rate limiting, scheduling, and delivery tracking, with reliability and observability as first-class requirements
- Build the consent and preference layer: per-channel consent records with provenance, opt-out and do-not-contact propagation to partners within contracted timelines, quiet hours, and suppression rules that no campaign can override
- Own deliverability end to end: sender registration and reputation, authentication standards, bounce and complaint handling
- Partner with data and machine-learning engineers on event-triggered engagement, including frequency management and holdout design
- Provide experimentation hooks so growth can test timing, content, and channel without changes to the core platform
- Establish engineering standards for a system that carries regulatory obligations, including audit trails and access controls
Benefits
- Work from home opportunities
- Paid time off and paid holidays
- Paid parental leave
- FSA and commuter benefit programs
- Team activity budget
- Top-tier 401(K) plan with company matching
- Health, dental, and vision care for you and your family
- Hands-on production experience with a major messaging provider or platform (for example Twilio, SendGrid, Braze, Iterable, Customer.io, or an in-house equivalent), and clear judgment about build versus buy
- Strong proficiency in at least one of Go, Java, Kotlin, Python, or TypeScript, plus SQL
- Shipped within a consent or privacy regime such as TCPA, CAN-SPAM, GDPR, or CCPA, where the system, not a policy document, enforced the rules
- Designed event-driven systems with explicit idempotency, retry, and deduplication guarantees, and carried on-call responsibility for them
- 5+ years of backend software engineering, including ownership of a messaging, notification, or lifecycle platform
- Operated that platform at meaningful scale, millions of messages per month, across at least two of email, SMS, and push
- Experience building experimentation infrastructure
- Deliverability troubleshooting at scale, including sender registration and domain reputation recovery
- Integrations with CRMs, call centers, or partner systems through webhook or real-time APIs
- Lifecycle or growth engineering on a large consumer product