Senior / Staff Full-Stack Engineer

Company: A5 Labs

Location: Global Remote

Type: Full-time

About the Role

We are building a next-generation AI-driven anti-cheating system for competitive games.

We are looking for a strong frontend-leaning Full-Stack Engineer who can build complex, scalable, and user-facing web applications. The ideal candidate has deep production experience with Vue.js, strong backend capability with Node.js, and the ability to own systems end-to-end from architecture to production.

What You’ll Do

• Design and build complex web applications, including:
• SaaS platforms
• Real-time dashboards
• Data-heavy user-facing systems
• Internal tools and operational platforms
• Develop frontend applications using Vue.js, ideally with Vue 3 / Nuxt / Pinia / Composition API
• Build and scale backend services using Node.js, preferably with NestJS / Express
• Own systems end-to-end: architecture, implementation, deployment, and production support
• Translate complex backend logic and data into intuitive product experiences
• Drive technical decisions instead of only executing assigned tickets
• Work closely with AI, data, backend, and product teams to integrate intelligent systems into the product

Core Requirements

We are selective. These are hard requirements.

• 6+ years of professional software engineering experience
• Strong production-level experience with Vue.js
• Experience with Vue 3 / Nuxt / Pinia / Composition API is strongly preferred
• Proven experience building complex web applications

Examples of what we consider “complex”:

• Multi-module SaaS platforms
• Real-time or event-driven systems
• Data-heavy dashboards or analytics systems
• Systems with non-trivial state, performance, or scalability challenges
• User-facing systems that require strong product thinking and technical ownership

Backend Requirements

• Solid backend experience with Node.js
• Experience with NestJS / Express preferred
• Experience with:
• REST APIs
• GraphQL
• API design
• Authentication / authorization
• Database interaction
• Scalable backend services

Engineering Requirements

• Strong system design and architecture decision-making ability
• Experience with CI/CD and modern engineering workflows
• Ability to own features or systems from design to production
• Comfortable working in a remote, async-first engineering environment
• Fluent written and spoken English

Level Expectations

Staff Engineer

• Owns entire systems or major product areas
• Drives projects independently with minimal supervision
• Makes practical architecture decisions
• Balances delivery speed with system quality
• Acts as a multiplier for team output

Principal / Architect

• Defines system architecture across multiple services
• Drives cross-team technical alignment
• Owns long-term technical direction
• Solves system-level problems around:
• Scaling
• Performance
• Reliability
• Real-time constraints

Nice to Have

• React / Next.js experience
• Real-time systems experience: WebSockets, streaming, event-driven systems
• AI / LLM integration experience
• Gaming / iGaming / high-interaction product background
• Nuxt.js SSR experience
• Cloud infrastructure experience: Docker, Kubernetes, AWS / GCP / Azure
• Data-heavy dashboard or analytics product experience

What We Are NOT Looking For

• Engineers who only build simple UI pages
• Candidates with mostly CRUD / API integration experience
• React-only engineers without meaningful Vue.js experience
• Profiles without clear system ownership
• Pure platform / infrastructure engineers without product delivery experience
• Candidates who only follow tickets and do not drive technical decisions

What We Offer

• Fully remote, global team
• 4–5 weeks paid annual leave + local holidays
• Competitive USD salary
• Quarterly bonus, up to 2x
• Flexible working hours, async-first culture
• High ownership, low bureaucracy environment
• Opportunity to work on AI + gaming + real-time systems