Senior Software Engineer, GraphQL Platform

Block(26 days ago)

HybridFull TimeSenior$185,200 - $326,800Platform Infrastructure Engineering

About this role

A Senior Software Engineer on Block’s GraphQL team will build and scale the centralized GraphQL platform that serves Square, Cash App, and other brands. The role emphasizes API design, distributed systems, and developer platform capabilities such as schema management, SDKs, and gateway features. The engineer will collaborate across product teams, drive architecture decisions, and help scale and operate high‑traffic systems.

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Required Skills

GraphQL
API Design
Distributed Systems
Platform Engineering
TypeScript
Kotlin
SDK Development
Schema Management
Performance Monitoring
Reliability Engineering

+6 more

About Block

block.xyz

Block, Inc. builds technology to increase access to the global economy by connecting businesses and consumers across commerce, payments, and financial services. Its ecosystem includes Square (merchant point‑of‑sale, payments, hardware and business tools), Cash App (peer‑to‑peer payments, banking, investing and crypto), Afterpay (buy‑now‑pay‑later), TIDAL (music streaming), Bitkey (blockchain/security products) and Proto (R&D and product incubation). Block offers payments processing, merchant services, lending, payroll, subscriptions, developer APIs and integrated hardware aimed at simplifying commerce for small businesses and individuals. The company emphasizes developer-friendly tools and consumer apps to expand financial inclusion globally.