Role Overview
X4 Technology is hiring a Lead Full Stack Engineer. This is a full-time role in CA. Part of X4 Technology's Frontend hiring. Full responsibilities, required qualifications, and the apply link are listed in the description below.
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Job Description
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!
Frequently Asked Questions
How do I apply for the Lead Full Stack Engineer position at X4 Technology?
Use the Apply button above to submit your application directly to X4 Technology. Most applications take less than 5 minutes if your resume and contact details are ready, and you'll be routed to the employer's official application system to finish.
Where is the Lead Full Stack Engineer position at X4 Technology located?
This position is based in CA. X4 Technology has not indicated remote or hybrid options for this role, so candidates should plan for on-site work.
What does a Lead Full Stack Engineer at X4 Technology earn?
X4 Technology has not disclosed a salary range in this posting. Many employers share specifics later in the interview process; you can also ask during a recruiter screen if compensation transparency is important to you.
When was the Lead Full Stack Engineer role at X4 Technology posted?
This role was posted on April 7, 2026 (62 days ago). It's still listed as actively hiring; we re-confirm openings against the source system multiple times per day and remove closed roles.
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