[Remote] Sr. Full Stack Engineer

Note: The job is a remote job and is open to candidates in USA. OP is seeking a Senior Full Stack Engineer to own and deliver product features end-to-end across frontend experiences, backend services, and APIs. The role involves collaborating with various teams to build secure, scalable, and delightful consumer-facing experiences while ensuring high-quality engineering practices.ResponsibilitiesOwn features end-to-end, from product design discussions through implementation, release, and production supportBuild and maintain user-facing web and mobile experiences with a strong focus on UX, performance, and reliabilityDesign and implement backend services and APIs supporting gameplay, wallets, promotions, and player account flowsBuild consumer-facing applications using React, Next.js, and TailwindImplement complex UI flows integrating real-time and transactional dataEnsure responsive, performant, and accessible experiences across devicesCollaborate with Design to translate UX flows into clean, maintainable UI implementationsDesign and build TypeScript + Node.js backend services (NestJS or Express preferred)Develop API-first, microservice-oriented systems that are modular, resilient, and independently deployableBuild and maintain REST and/or GraphQL APIs consumed by frontend and mobile customersImplement transactional, audit-friendly workflows for gameplay, wallets, bonuses, and settlementsIntegrate with third-party systems (payments, KYC/identity, fraud, analytics)Work closely with QA/SDET partners to ensure strong automated and manual test coverageCollaborate with AppSec and compliance partners to meet PCI and security expectationsDesign systems with traceability, data integrity, and operational observability in mindSupport production systems and participate in debugging and incident resolutionSkills5+ years of professional software engineering experience with significant frontend and backend ownershipStrong experience with React, Next.js, Tailwind, TypeScript, and Node.jsExperience building and integrating REST or GraphQL APIsSolid database skills, especially in PostgreSQLExperience building and scaling consumer-facing production systemsFamiliarity with Agile/Scrum environmentsTransactional, audit-friendly systemsPayments, wallets, or financial workflowsFinTech, gaming, casino, or regulated-industry exposureReal-time systems, WebSockets, or mobile experienceProven use of AI tooling to accelerate development and testingBenefits100% medical, dental & vision coverage (partial for dependents).401(k) employer match.Fully remote with flexible work culture.High-growth environment with strong career progression.Collaborative, innovation-driven team with direct leadership exposure.Company OverviewOP is one of the fastest-growing technology consulting and solutions companies in the U.S. It was founded in 2006, and is headquartered in Irvine, California, USA, with a workforce of 201-500 employees. Its website is http://www.orangepeople.com/.Company H1B SponsorshipOP has a track record of offering H1B sponsorships, with 8 in 2025, 5 in 2024, 1 in 2023, 8 in 2022, 6 in 2021, 11 in 2020. Please note that this does not guarantee sponsorship for this specific role.