Senior Backend Engineer

15 hours ago

Sverige, Sweden Playbook Full time

Senior Backend Engineer/Technical Lead (TypeScript, Cloudflare Edge, Payments)

Location: Remote (Europe time zones preferred)

Experience: Senior-level

Type: Full-time

About our client: Building Technologies is building a next-generation Casino Platform — fast, modular, and designed for multi-brand scalability. We're building a Cloudflare Edge microservice platform powered by TypeScript, Workers, Durable Objects, D1, KV, and R2 — evolving beyond a legacy Lavarel PHP / AWS monolith toward real-time, low-latency scalability. We're looking for a Senior Backend Engineer / Technical Lead to take ownership of backend and infrastructure development, drive architectural evolution, and gradually assume day-to-day technical leadership from the CTO.

The Role:

You'll be the technical cornerstone of our backend systems — designing and implementing scalable, high-performance edge services. You'll collaborate closely with the CTO and product teams to define backend strategy, lead key migrations, and ensure our platform delivers real-time, fault-tolerant experiences across gaming, content, and payment services.

Responsibilities & Requirements:

  • Lead the development of edge-native backend services using TypeScript and the Cloudflare Edge stack (Workers, Durable Objects, D1, KV, R2, CI/CD).
  • Architect and scale distributed microservices to replace legacy Laravel PHP components on AWS.
  • Design and maintain APIs for authentication, content delivery, payments, and game integrations.
  • Define and maintain CI/CD pipelines, testing standards, and deployment workflows.
  • Integrate and maintain payment APIs (PSPs, crypto, or fiat gateways) ensuring compliance, reliability, and security.
  • Demonstrate a proven ability to lead projects, make architectural decisions, and guide engineering direction.
  • Collaborate cross-functionally with frontend, design, and product teams to align technical and business goals.
  • Build caching, monitoring, and failover mechanisms to ensure 99.9% uptime and platform stability.
  • (Bonus) Possess experience within the Casino or iGaming industry.

Our Tech Stack:

Backend: TypeScript, Cloudflare Workers, Durable Objects, D1, KV, R2 Frontend: React, TypeScript, Material UI Premium, Cloudflare Pages Infrastructure: Cloudflare Edge, AWS (legacy) Tooling: GitHub, Cloudflare Dashboard, CI/CD, Google Workspace Legacy: Laravel PHP, Go

Why Join Us:

  • Shape the architecture of a cutting-edge, multi-brand gaming platform.
  • Work directly with the CTO and influence key technical decisions.
  • Join a small, high-impact engineering team with full ownership and autonomy.
  • Build on Cloudflare Edge, one of the most innovative infrastructures on the web.

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