Engineering Remote Full-time Senior

Senior Backend Engineer

VerifyStack $180K – $240K + equity Remote

About the Role

We're looking for a Senior Backend Engineer to help build and scale VerifyStack's core fraud detection platform. You'll work on high-throughput, low-latency systems that process millions of decisions daily, designing the APIs, data pipelines, and real-time scoring infrastructure that our customers depend on.

What You\'ll Do

Design and build low-latency API endpoints (Next.js Edge + Node.js runtimes) serving real-time fraud decisions
Own the decision pipeline end-to-end — from signal ingestion, through multi-layer scoring, to policy evaluation and webhook dispatch
Build and maintain the event tracking and velocity analysis subsystems backed by KV stores and Prisma/PostgreSQL
Implement distributed rate limiting, circuit breakers, and graceful degradation for fault-tolerant operation
Improve our audit trail, cryptographic evidence integrity verification, and compliance infrastructure (GDPR, SOC 2)
Collaborate with the detection team on signal engineering, scoring calibration, and the feedback loop that adjusts scoring weights
Write comprehensive tests (unit, integration, and load) and participate in on-call rotations
Mentor junior engineers through code reviews, architecture discussions, and pair programming

Requirements

5+ years of backend engineering experience, with at least 2 years building high-throughput APIs or data-intensive systems
Strong proficiency in TypeScript/Node.js — our entire stack is TypeScript from edge to database
Experience with PostgreSQL, Redis / KV stores, and event-driven architectures
Solid understanding of security fundamentals: API authentication, HMAC signing, rate limiting, input validation
Familiarity with serverless / edge computing (Vercel, Cloudflare Workers, or AWS Lambda)
Ability to reason about distributed systems: consistency, idempotency, retry semantics, eventual consistency
Experience with observability tooling (structured logging, distributed tracing, metrics dashboards)

Nice to Have

Experience in the fraud/risk/payments domain
Familiarity with Next.js App Router and edge middleware patterns
Knowledge of WebAssembly, browser fingerprinting, or TLS/JA3 analysis
Contributions to open-source projects
Experience with Prisma ORM

Tech Stack

TypeScriptNext.jsNode.jsPostgreSQLRedis/KVPrismaVercel EdgeWebAssembly

Benefits & Perks

Competitive salary ($180K–$240K) plus meaningful equity
Fully remote — work from anywhere
Unlimited PTO with a 3-week minimum encouraged
$2,000 home office stipend
$1,500 annual learning & conference budget
Comprehensive health, dental, and vision insurance
Mental health support (therapy sessions covered)
401(k) matching

Interested?

Send your resume and a brief note about why you\'re excited about this role. We review every application.

Apply via Email

Or reach out on LinkedIn

About the Role

What You\'ll Do

Design and build low-latency API endpoints (Next.js Edge + Node.js runtimes) serving real-time fraud decisions

Own the decision pipeline end-to-end — from signal ingestion, through multi-layer scoring, to policy evaluation and webhook dispatch

Build and maintain the event tracking and velocity analysis subsystems backed by KV stores and Prisma/PostgreSQL

Implement distributed rate limiting, circuit breakers, and graceful degradation for fault-tolerant operation

Improve our audit trail, cryptographic evidence integrity verification, and compliance infrastructure (GDPR, SOC 2)

Collaborate with the detection team on signal engineering, scoring calibration, and the feedback loop that adjusts scoring weights

Write comprehensive tests (unit, integration, and load) and participate in on-call rotations

Mentor junior engineers through code reviews, architecture discussions, and pair programming

Requirements

5+ years of backend engineering experience, with at least 2 years building high-throughput APIs or data-intensive systems

Strong proficiency in TypeScript/Node.js — our entire stack is TypeScript from edge to database

Experience with PostgreSQL, Redis / KV stores, and event-driven architectures

Solid understanding of security fundamentals: API authentication, HMAC signing, rate limiting, input validation

Familiarity with serverless / edge computing (Vercel, Cloudflare Workers, or AWS Lambda)

Ability to reason about distributed systems: consistency, idempotency, retry semantics, eventual consistency

Experience with observability tooling (structured logging, distributed tracing, metrics dashboards)

Benefits & Perks

Competitive salary ($180K–$240K) plus meaningful equity

Fully remote — work from anywhere

Unlimited PTO with a 3-week minimum encouraged

$2,000 home office stipend

$1,500 annual learning & conference budget

Comprehensive health, dental, and vision insurance

Mental health support (therapy sessions covered)

401(k) matching