Senior Backend Engineer Onramp

Backend Engineer - High-Throughput FinTech/Crypto Infrastructure

Location: New York City (Office)

Compensation: $250K - $300K

We are a high-growth software company contributing to one of the worlds largest crypto social networks moving fast and redefining what is possible in the FinTech and crypto space. We are seeking an elite Backend Engineer to design and scale the complex systems powering seamless fiat-to-crypto flows real-time risk decisions and rock-solid financial records for a 24/7 system.

You will own mission-critical systems and services at the core of our platform working on high-throughput low-latency distributed systems. This role requires deep technical expertise at the intersection of payments compliance risk and on-chain infrastructure.

Key Responsibilities:

• Payments & Orchestration: Own payment orchestration for bank rails (ACH RTP FedNow SEPA) and cards (Apple Pay Google Pay) building idempotent fault-tolerant APIs and webhook processing.
• Risk Engine: Build a real-time risk engine (<300ms) that combines rules machine learning scores sanctions/KYC hits and blockchain analytics to drive instantaneous GREEN/AMBER/RED outcomes.
• Compliance Infrastructure: Implement KYC/AML primitives (CIP/CDD Travel Rule data) and ship a double-entry ledger and reconciliation system for audit-ready journaling and daily break detection.
• Integration: Integrate third-party providers (Plaid Stripe Adyen Chainalysis TRM etc.) behind clean reliable interfaces.
• Crypto Delivery: Deliver crypto safely and fast (e.g. USDC/SOL) managing hot-wallet flow transaction creation confirmations and operational safeguards.
• Reliability & Monitoring: Raise the bar on reliability (SLOs circuit breakers canary releases) instrument everything with traces/metrics/logs and participate in on-call for 24/7 system coverage.

• Domain Expertise: Experienced Onramp specialist with a track record building fiat-to-crypto ramps end-to-end.
• Systems Expertise: Back-end expert in high-throughput low-latency distributed systems payments or fintech risk.
• Programming Fluency: Fluent in Rust Go or TypeScript/Node/Python with strong systems skills.
• Database Expert: Deep in Postgres (transactions indexing locking); familiar with Redis and event/OLAP stores (Kafka/Redpanda ClickHouse).
• API Craftsmanship: API craftsman skilled in gRPC/REST best practices idempotency versioning and webhook consumers.
• Architecture: Event-driven thinker who designs systems with queues outbox/inbox and exactly-once-effective behavior.
• Security: Security-minded with knowledge of key management HSM/KMS and secrets hygiene.
• Mindset: Ownership-driven comfortable with ambiguity and thrives on rapid iteration.
• Location: New York NY (Full-Time In-Person) this is not a remote position.

Preferred Experience (Signal Boosters):

• Payments: ACH/NACHA returns chargebacks 3DS/SCA or Apple/Google Pay.
• Open Banking: Experience with Plaid TrueLayer or Tink for account auth & bank-transfer initiation.
• Risk/Fraud: Experience with rule engines device fingerprinting or dispute workflows.
• Compliance: Sanctions/PEP screening Travel Rule networks or SAR/STR integration.
• Infra: AWS Terraform Docker/Kubernetes OpenTelemetry Prometheus Grafana.

• Compensation: Competitive Base Salary ($250K - $300K) Equity/Tokens (significant upside).
• Culture: High-talent density culture that values speed over perfection and ownership over bureaucracyeveryone makes big decisions.
• Health: Overpowered medical dental and vision plans.
• Impact: Opportunity to build something game-changing at the cutting edge of crypto and financial infrastructure.
• Location: Work in our dynamic office environment in New York NY.

Due to the high volume of applications we anticipate we regret that we are unable to provide individual feedback to all you do not hear back from us within 4 weeks of your application please assume that you have not been successful on this occasion. We genuinely appreciate your interest and wish you the best in your job search.

Commitment to Equality and Accessibility:

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Required Experience:

Senior IC