Senior Typescript Backend Engineer
OP
full-remoteseniorpermanentbackend United States 49 days ago via LinkedIn
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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