Senior Full Stack Engineer

Job not on LinkedIn

🕒 4 days ago

🇺🇸 United States – Remote

⏰ Full Time

🟠 Senior

🧑‍💻 Full-stack Engineer

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Logo of Tolken

Tolken

2 - 10 employees

Founded 2025

💳 Fintech

🔌 API

🤝 B2B

Fintech • API • B2B

Tolken is a technology provider that operates a network for coordinating global cross-border payments in real time. It connects banks, PSPs, FX desks, and liquidity providers via a single integration/API, offering intelligent routing, parallel provider checks, real-time tracking, full audit trails, and automated entity assessment to replace one-off enhanced due diligence. Tolken positions itself as infrastructure beneath global payment rails (in beta), enabling senders to access corridors without pre-funding or new licenses and enabling providers to receive routed volume with standardized, verified KYC/AML data. It explicitly states it is a technology provider and does not itself provide payment or other financial services.

📋 Description

• 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.

🎯 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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