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Senior Typescript Backend Engineer

OP

full-remoteseniorpermanentbackend United States 49 days ago via LinkedIn

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Tags

TypeScriptNode.jsRESTGraphQLMicroservicesPostgreSQLSecurityPCI DSSFinTechAgile

About the role

Role Overview

Senior Backend Engineer for a sweepstakes-based iGaming platform. You’ll help design and scale backend services powering gameplay, wallets, payments, promotions, and player account management, moving ideas from concept to production quickly.

Responsibilities

  • Design API-first backend services and build microservice-oriented systems that are modular, resilient, and independently deployable.
  • Build and maintain reliable REST/GraphQL APIs and third-party integrations (payments, KYC/identity, fraud, analytics).
  • Own backend features end-to-end: design → implementation → production rollout → operational support.
  • Implement secure, audit-friendly transaction processing for deposits, withdrawals, bonuses, and settlement workflows.
  • Ensure consistency, traceability, and integrity across high-volume financial operations and asynchronous workflows.
  • Collaborate with AppSec and compliance partners to align with PCI DSS expectations (access control, data handling, logging, vulnerability remediation).
  • Work autonomously in a startup environment; support systems that may span on-prem and cloud.
  • Use AI platforms to accelerate development and testing.

Requirements

  • 5+ years designing, building, and scaling backend services using TypeScript + Node.js.
  • Strong system architecture and experience building scalable, reliable services.
  • Solid database skills, especially PostgreSQL.
  • Security-first mindset with focus on data integrity and traceability.
  • Experience with transactional, audit-friendly systems and asynchronous workflows.
  • Experience working in Agile/Scrum environments.
  • Comfortable integrating with payment/identity/fraud/analytics systems.

Nice to Have

  • Experience with FinTech, gaming/casino, payments, regulatory environments.
  • WebSockets or real-time systems experience.

Exclusions

  • Java, Spring Boot, Go, .NET

About OP

OP is partnering with a fast-growing iGaming startup that builds sweepstakes-based gaming experiences. The platform powers cross-game interactions and user engagement through backend services spanning gameplay, wallets, payments, promotions, and player account management.

Scraped 6/17/2026