Support Engineer (Part-Time)

About Kaskade

Kaskade is a whitelabel crypto payment gateway for merchants (kaskade.com), providing checkout, payment links, invoicing, POS and payouts on top of MPC custody and a policy-governed withdrawal engine. Kaskade launched to friendly customers on 1 September 2026, with public launch on 1 October 2026.

Why This Role Exists

Kaskade's technical operations currently depend on a single engineer (our CTO), who works 9 hours behind CET. This creates a coverage gap for merchant-facing technical issues during CET business hours. We're hiring a Technical Support Engineer to close that gap: someone who can independently triage and resolve platform issues and support merchant integrations during CET hours, with a scoped path to make direct, reviewed code changes as trust and tenure build.

What You'll Do

• Serve as the first point of contact for merchant technical support during CET hours (integration questions, transaction issues, API/webhook troubleshooting)
• Diagnose issues across the payment flow: checkout, payment links/invoices, POS, MPC custody, and policy-governed payouts
• Investigate and resolve issues within a defined scope (config, non-custody-affecting fixes); ship changes through code review rather than direct production access, escalating anything touching custody, payouts, or core architecture to the CTO
• Monitor platform health and transaction flows, flagging anomalies proactively
• Support merchant onboarding and Sumsub KYC/KYB verification issues
• Maintain and improve internal runbooks and support documentation so knowledge isn't siloed
• Coordinate with the CTO on handoffs, code review, and priority issues despite the time zone gap

What We're Looking For

• Solid backend development experience, comfortable reading and modifying an existing codebase (not just a support/ticketing background)
• Experience with or strong aptitude for payments, fintech, or crypto infrastructure
• Familiarity with REST APIs, webhooks, and debugging integration issues from both sides (platform and merchant)
• Based in or working CET-compatible hours
• Comfortable owning issues independently and making judgment calls on what to fix vs. escalate
• Strong written communication for merchant-facing support and internal documentation
• Bonus: exposure to MPC custody, exchange/on-off-ramp APIs, or KYC/AML tooling (Sumsub)

Access & Security

Access is role-based and scoped to what the job needs, consistent with Kaskade's own platform security model. This role does not include unreviewed production or custody-adjacent access; code changes go through review by the CTO before merge, with scope expanding over time as trust is established.

Why Join

You'll be one of the first hires on a live crypto payment platform, with real ownership over a critical function: keeping merchants supported and the platform running smoothly around the clock.

The part-time role could cover either 9 AM – 1 PM or 1 PM – 5 PM CET