Tolken logo
Tolken

Building cross-border payments infrastructure that makes moving money across borders faster, cheaper, more transparent.

Senior Full Stack Engineer

Location

United States

Posted

4 days ago

Salary

0

Seniority

Senior

Job Description

Senior Full Stack Engineer

Tolken

• Design, build, and maintain end-to-end features across backend (ledger, routing services) and frontend (React-based UI). • Implement and evolve production-grade APIs, data models, and integrations for a high-throughput financial system. • Own the full lifecycle of features: design, implementation, testing, deployment, and ongoing reliability in production. • Collaborate closely with the VP of Engineering, founders, and other engineers to translate product requirements into technical designs and delivery plans. • Improve performance, scalability, and observability of the platform through profiling, tuning, and better monitoring. • Contribute to engineering standards, code reviews, and technical decision-making in a fast-paced startup environment.

Job Requirements

  • 5+ years building high-throughput, distributed backend systems; you understand the difference between “working” and “production-grade.”
  • Strong backend experience in Python (FastAPI preferred), Go, or Java.
  • Strong command of modern frontend stacks (e.g., React) and ability to build complex, data-dense interfaces.
  • Deep understanding of modern database design; depth in Postgres and Redis is a strong plus.
  • Hands-on experience with cloud-native environments (GCP preferred), containers, and Kubernetes.
  • Mastery of distributed systems concepts: microservices, idempotency, retry/backoff strategies, and eventual consistency.
  • Experience with event-driven architectures and high-volume queues (e.g., Kafka, Redis Streams) and caching layers.
  • You build with observability in mind: metrics, tracing, and logging, and are comfortable working with modern monitoring stacks.

Benefits

  • Equal opportunity employer
  • Celebration of diversity
  • Commitment to creating an inclusive environment

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