Software Engineer, Doppel
Detection, TOR
CA$157-367k
+ Equity
Social engineering defense platform
Open for applications
Social engineering defense platform
201-500 employees
Open for applications
CA$157-367k
+ Equity
201-500 employees
Company mission
To protect the world from social engineering attacks every day.
Role
Who you are
- 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
What the job involves
- We’re looking for passionate engineers who love building and operating backend systems at scale - someone who can take ambiguous detection/product problems and deliver reliable production services and UIs that help our ops and customers find and remediate threats
- You’ll focus on high-throughput ingestion, enrichment, scoring and alerting pipelines, APIs and dashboards, threat-linking infrastructure, and reliable automation that the stakeholder teams use every day
- 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
Our take
While the NFT space is often one that is enticing to investors and traders, there are persistent issues with fraud in the market. Cybercriminals are able to pass off any image as their own intellectual property, and while NFT marketplaces do abide by copyright laws this kind of fraud can be hard to spot before money changes hands. The damage to a brand's reputation and customer trust can be hard to rectify.
Doppel exists to solve this problem. Using an AI model trained to spot fraud and IP violations, it indexes NFT data across most of the major blockchains and flags potentially fraudulent NFTs. Trusted by Opensea, Dapper and numerous other marketplaces, Doppel scans over 1.5 million NFTs daily and has identified over 100,000 threats in the marketplace.
Doppel has raised significant funding, its 2025 round aimed at accelerating product innovation and expanding its capabilities beyond NFT fraud detection into broader social engineering defense. As AI-driven scams become more sophisticated, the company is ready as a multi-channel security platform, helping organizations detect, prevent, and respond to threats across digital environments.
Steph
Company Specialist at Welcome to the Jungle
Company
Funding (last 2 of 3 rounds)
May 2025
$35m
SERIES B
Jan 2024
$14.4m
SERIES A
Total funding: $54.4m
Company benefits
- Health benefits: We’ve got your health covered, so you can focus on what matters.
- Flexible time off: Take the time you need, when you need it.
- Supporting Life's Biggest Job: Because family matters most, we offer paid time off for parents to bond, rest, and adjust to life’s biggest change.
- Perks for Office Days: We make getting to the office (and staying nourished) easier.
- Cell stipend: We make staying in touch a little easier.
- Home office setup: We'll take care of your home office, so you can take care of the work that matters.
Leadership
Kevin Tian
(Co-Founder & CEO)Kevin previously founded Ferryhome. Prior to that, he was a Staff Engineer & Engineering Manager at Lyft and Senior Software Engineer with Uber.
Rahul Madduluri
(Co-Founder & CTO)Prior to co-founding Doppel, Rahul was the Co-founder & CTO of YakPak and a Software Engineer at Uber.
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