Software Engineer, Detection

Doppel

Software Engineer developing scalable backend systems for AI-native social engineering defense. Collaborating cross-functionally and mentoring junior engineers in a fast-growing team culture.

Posted 5/13/2026full-timeToronto • 🇨🇦 CanadaMid-LevelSenior💰 CA$157,000 - CA$367,000 per yearWebsite

Tech Stack

Tools & technologies

GoJavaNode.jsNoSQLPythonSQL

About the role

Key responsibilities & impact

Work on a wide range of asks that protect billions of people from digital impersonation
Have complete end to end ownership - from directly collecting customer requirements to continuously iterating on shipped releases.
Mentor junior engineers, make key product decisions, and foster a high-performing team culture

Requirements

What you’ll need

Hands-on experience building production backend services or full-stack features (or equivalent).
Proven record of shipping end-to-end: design → implementation → testing → monitoring → oncall.
Strong mastery of at least one backend language (Python, Go, Java, or Node) and comfort with web APIs, async processing, and service frameworks.
Solid system design skills: experience architecting scalable, fault-tolerant systems (sharding, caching, queueing, idempotency, backpressure).
Experience building and operating large data pipelines (batch or streaming), working with warehouses or OLAP systems for analytics, and designing efficient schemas for scale.
Deep practical experience with backend concerns: databases (SQL + NoSQL), caching, message queues, rate limiting, retries, and cost/latency tradeoffs.
Strong observability, debugging and incident response skills: structured logging, tracing, dashboards, SLOs/alerts, and the ability to triage and fix production issues.
Product ownership and excellent cross-functional communication — you’ll collaborate with Operations, Customer Success, Sales, to deliver measurable outcomes.

Benefits

Comp & perks

Free lunch and dinner in the office
Flexible PTO
Quarterly team offsites

ATS Keywords

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Applicant Tracking System Keywords

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Hard Skills & Tools

PythonGoJavaNodesystem designscalable systemsdata pipelinesSQLNoSQLobservability

Soft Skills

mentoringproduct ownershipcross-functional communicationteam cultureincident response