Job Description

About the Opportunity

The FinTop has partnered with client operating a large-scale subscription-based social and creator platform.

The client is currently rebuilding and modernising its core technology platform while expanding its engineering team. They are looking for a senior Full-Stack Engineer who can take ownership of complex systems across the frontend, backend, infrastructure, and overall architecture.

Key Responsibilities

• Own and evolve large-scale Next.js applications, currently using the Pages Router, with future migration toward App Router patterns.
• Manage complex frontend state using Redux and redux-saga.
• Improve frontend performance across high-traffic feeds and real-time user experiences.
• Design and develop robust backend services using NestJS, with strong validation, error handling, and API design principles.
• Build and maintain secure authentication and RBAC authorisation systems.
• Design and optimise relational and non-relational database schemas, queries, aggregations, and data-access patterns.
• Work with caching and queuing systems to support distributed and high-volume workloads.
• Understand and implement CDN and media-delivery concepts, including signed URLs, caching strategies, and content delivery.
• Collaborate with frontend, backend, DevOps, and platform engineers to establish engineering standards and improve system reliability.
• Contribute to architectural decisions and technical direction across the platform.
• Mentor engineers across the stack while continuing to deliver hands-on production code.
• Identify and resolve performance, scalability, and reliability challenges across the technology stack.

Requirements

• Strong senior-level production experience building and operating full-stack web applications.
• Excellent experience with React and Next.js or comparable modern frontend frameworks.
• Strong understanding of frontend state management, ideally with Redux and redux-saga.
• Proven experience designing and developing robust backend APIs and services.
• Experience with authentication, authorisation, RBAC, and application security.
• Strong knowledge of both relational and non-relational databases.
• Experience with caching, queues, and distributed systems.
• Hands-on experience with Docker, Kubernetes, and cloud-native environments.
• Understanding of GitOps and modern software delivery workflows.
• Strong production experience with TypeScript and a typed backend language such as .NET/C#.
• Ability to work across the stack and take ownership of technical problems from design through to production.
• Comfortable working in the adult-content industry.

Nice to Have

• Experience with CDN configuration and large-scale media delivery pipelines.
• Experience implementing and managing signed URLs and media access controls.
• Background working on high-volume B2C, subscription, fintech, iGaming, payments, or social platforms.
• Experience supporting large-scale platform or database migrations with minimal disruption to live users.
• Experience working with real-time systems and high-throughput consumer applications.