Platform Engineer

Job not on LinkedIn

🕒 March 24

🇺🇸 United States – Remote

💵 $170k - $210k / year

⏰ Full Time

🟠 Senior

🔴 Lead

🏗️ Platform Engineer

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OnePay

WebsiteLinkedInAll Job Openings

501 - 1000 employees

💳 Fintech

🏦 Banking

₿ Crypto

💰 $300M Series unknown on 2025-01

Fintech • Banking • Crypto

OnePay is a U. S. -based financial technology company that provides consumer-facing banking and payment products through partner banks. The app offers checking/savings with early pay and high-yield savings, a credit-builder program and secured Builder Mastercard, a CashRewards card with Walmart-focused cashback, investing and cryptocurrency trading, a digital wallet, pay-later options, and free tax filing for customers. OnePay partners with Coastal Community Bank, Lead Bank, Synchrony, and other providers for banking, card issuance, lending, and custody services; it is not itself a bank.

📋 Description

• Design and operate platform-oriented core services that support high-scale distributed systems across OnePay’s product ecosystem • Architect, build, and manage Kafka-based event streaming systems that power real-time data flows and mission-critical financial workflows • Develop internal developer tooling and shared infrastructure that improve velocity, reliability, and observability across engineering teams • Build and evolve frameworks that support the construction and orchestration of agentic applications, enabling intelligent, automated workflows across products • Partner closely with engineering, data, and AI teams to solve complex distributed computing challenges in a secure, cloud-native AWS environment

🎯 Requirements

• 7+ years of experience in software engineering within fintech, cloud infrastructure, or large-scale distributed systems environments • Strong hands-on experience designing, operating, and scaling Kafka-based event-driven architectures • Deep expertise in distributed systems, asynchronous processing, and high-availability platform services • Production experience in AWS cloud environments and building cloud-native infrastructure • Experience building developer platforms, internal tooling, or frameworks that enable other engineers to move faster • Drive and proactivity - everyone here is a builder and executor

🏖️ Benefits

• Competitive base salary, stock options, and health benefits from Day 1 • 401(k) plan with company match • Remote-friendly (US), flexible time off (FTO), and opportunities for growth • A high-growth, mission-driven, inclusive culture where your work has real impact