Lead Full Stack Engineer
X4 Technology
About the role
An international cross-border payments company are looking for a Lead engineer to help build and scale their payment platform. You’ll work across the full stack - frontend, backend, cloud infrastructure, and data - designing reliable systems that power real financial transactions.
You'll lead their latest platform, provide technical expertise at both the architectural and hands-on development levels, and mentor junior team members.
What You’ll Do: • Design and build scalable payment applications and APIs • Develop modern frontend interfaces and backend services • Integrate with payment providers and financial systems • Optimise database performance and system reliability • Contribute to architecture decisions and technical strategy • Support CI/CD pipelines and cloud infrastructure • Mentor developers and promote engineering best practices
Tech Stack: • Frontend: TypeScript, JavaScript, Vue.js (or React/Angular), HTML5, CSS3 • Backend: PHP 8 (Laravel or Symfony), • REST APIs • Data: MySQL, PostgreSQL, Redis • Cloud & DevOps: AWS, Docker, CI/CD, Kubernetes (nice to have) • Architecture: API design, OAuth/JWT authentication, queues, webhooks, payment integrations
What We’re Looking For: • Strong system design and API architecture skills • Experience building high-performance, scalable applications • Comfortable working across frontend, backend, and cloud environments
For more details, apply now!
Requirements
- Strong system design and API architecture skills
- Experience building high-performance, scalable applications
- Comfortable working across frontend, backend, and cloud environments
Responsibilities
- Design and build scalable payment applications and APIs
- Develop modern frontend interfaces and backend services
- Integrate with payment providers and financial systems
- Optimise database performance and system reliability
- Contribute to architecture decisions and technical strategy
- Support CI/CD pipelines and cloud infrastructure
- Mentor developers and promote engineering best practices
Skills
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