Castle · 5 months ago
Staff Solutions Engineer
Brooklyn, NY
Full-time
Hybrid
Mid Level
$223K/yr - $277K/yr
4+ years expCastle is a profitable, product-led Series A startup focused on online trust and safety, protecting users from account takeovers and abuse. They are seeking a seasoned Solutions Engineer to handle customer-facing activities, particularly in pre-sales, and to build relationships throughout the customer lifecycle while delivering impactful demos and implementing solutions.
Cyber SecurityFinTechFraud DetectionInternetSecurity
Responsibilities
Own technical relationships across the full customer lifecycle. From evaluation through adoption
Run technical evaluations and proof-of-concepts that build conviction and close deals
Deliver demos that show real business impact, not just product features
Lead implementation planning and unblock teams during onboarding
Debug issues directly and close loops fast
Build internal tools or scripts where they create leverage for customers or the team
Surface product gaps and insight from the field to inform roadmap decisions
Qualification
Required
4–7+ years in a technical pre-sales role (SE, SA, etc.) with hands-on experience leading POCs
Proven ability to move technical teams from exploration to production
Comfortable working with APIs, SDKs, auth flows, and writing code to solve problems
Communicates clearly and directly—translates technical depth into business impact without overselling
Based in NYC or able to be in the Brooklyn office 2–3 days a week during ramp-up
Benefits
Flexible work hours. We prioritize outcomes over hours spent.
Unlimited PTO. Take the time you need to recharge and maintain a healthy work-life balance.
Paid parental leave. Supporting new parents during their transition.
We’ll supply the computer and related gear you need to excel.
Company
Castle
Account security and fraud prevention for developers, teams, and enterprises.
11-50 employees
H1B Sponsorship
Castle has a track record of offering H1B sponsorships. Please note that this does not
guarantee sponsorship for this specific role. Below presents additional info for your
reference. (Data Powered by US Department of Labor)
Distribution of Different Job Fields Receiving Sponsorship
Represents job field similar to this job
Trends of Total Sponsorships
2024 (1)
2021 (2)
2020 (3)
Funding
Current Stage
Early StageTotal Funding
$11.56MKey Investors
Index VenturesFirst Round Capital
2021-01-01Series Unknown
2019-02-08Series A· $9.2M
2016-11-09Seed· $2M
Leadership Team
Johan Brissmyr
CEO & Co-founder
Recent News
2025-09-30
Company data provided by crunchbase