Staff Engineer, FaaS & AI
About Reap
Reap is a global financial technology company headquartered in Hong Kong with employees across multiple countries. We enable financial connectivity and access for businesses worldwide by combining traditional finance with stablecoins for efficient money movement.
Through our stablecoin-powered corporate cards, payments, and expense management tools, we streamline financial operations and help businesses scale. Our APIs enable businesses to integrate stablecoin-enabled finance into their own products and services—from issuing Visa cards to facilitating cross-border payments.
Backed by leading investors including Acorn Pacific, Index Ventures and HashKey Capital, Reap is building the future of borderless, stablecoin-enabled finance.
About the Role
Reap's CaaS (Cards-as-a-Service) and FaaS (Fintech-as-a-Service) platform powers the card issuing and financial infrastructure that our clients and partners depend on. As Reap scales across new markets and use cases, the platform needs to evolve: from architecture and scalability, to technical debt, to how we build software with AI.
As a Staff Engineer, you will be the senior IC technical owner of this evolution. This is not a management role — it is a high-leverage engineering leadership position for someone who drives change through technical excellence, systems thinking, and cross-team influence. You'll set the architectural direction for the CaaS/FaaS platform, lead AI adoption across engineering teams, and work closely with Card Engineering Managers to ensure platform initiatives land in product.
What You’ll Do
Define and drive the technical roadmap for the CaaS/FaaS platform: scalability improvements, architectural modernisation, and tech debt resolution
Lead the adoption of AI-assisted engineering across Reap's Product Engineering teams — from AI-augmented development workflows (e.g., Claude Code, LLM-assisted code review) to agentic automation of repetitive engineering processes
Work closely with Card Engineering Managers to align platform direction with product delivery needs, and provide hands-on technical guidance on complex problems
Identify systemic engineering quality issues and build the case — and the plan — to address them
Serve as a technical anchor for senior engineers across the Card domain: conducting design reviews, setting standards, and mentoring
Platform Architecture & Scalability
Lead architecture review and modernisation of CaaS/FaaS systems — service boundaries, data models, API contracts, event flows
Identify and resolve scalability bottlenecks before they become production constraints
Define reusable patterns and standards that Card Engineering teams can build on
Drive platform initiatives end-to-end: from RFC through to production delivery and stability
Tech Debt Management
Conduct systematic audits of technical debt across the CaaS/FaaS codebase
Prioritise and sequence debt remediation alongside product delivery work
Advocate for and lead refactors that have long-term impact on engineering velocity and reliability
AI Enablement & Process Improvement
Lead Reap's AI adoption strategy at the engineering team level — defining what "good" looks like for AI-assisted software development
Build and maintain reusable AI tooling, prompt patterns, and SDLC workflows (e.g., CLAUDE.md standards, agentic code review, automated test generation)
Identify engineering processes where AI can reduce toil and improve quality — and drive those improvements into practice
Track and report on AI adoption signals across Product Engineering teams
Technical Leadership (IC)
Work closely with Card EMs to shape platform roadmap priorities and resolve technical dependencies
Conduct architecture and design reviews for high-impact initiatives
Set engineering standards for code quality, observability, testability, and reliability across the Card domain
Mentor Staff and Senior engineers; elevate the technical bar across teams
What We’re Looking For
10+ years of software engineering experience, with a track record of technical leadership at Staff or Principal level
Deep experience in distributed systems, API platform architecture, or financial infrastructure at scale
Demonstrated ability to drive large, complex technical initiatives across multiple teams without direct authority
Strong systems thinking: able to reason about fault-tolerance, observability, data consistency, and performance at scale
Clear and compelling communicator — can write RFCs, lead design reviews, and present technical direction to engineering and executive audiences
Genuine interest in AI/LLM tooling and its application to software engineering workflows
Hands-on experience with AI-assisted development tools (e.g., Claude Code, GitHub Copilot, Cursor) and integrating them into engineering team workflows
Our main stack is TypeScript, Node.js, NestJS, and AWS
Nice to Have
Experience in fintech, card issuing, payments, or API platform infrastructure
Experience defining and tracking engineering metrics (DORA, AI-augmented output, platform reliability)
Familiarity with CaaS/FaaS product models and card network infrastructure (Visa, Mastercard, Thredd or equivalent)
Experience leading technical uplift programs: reducing tech debt at scale, improving test coverage, migrating legacy systems
Familiarity with observability tools (New Relic, Datadog, OpenTelemetry) and CI/CD automation
Your Adventure Benefits
High-ownership, high-impact role at the frontier of stablecoin-powered finance
Work directly with strategic partners and shape how Reap expands its financial ecosystem
Operate with significant autonomy as Reap's technical owner of a key partnership
Join a high-caliber team across engineering, product, and operations
Insurance coverage after probation
Reap Card stipend
Use of AI tools at work — and the space to learn, experiment, and grow with them
A culture of innovation, inclusion, and continuous learning
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- Department
- Engineering
- Locations
- Hong Kong, Singapore
- Remote status
- Hybrid
About Reap
Reap is a leading global payment technology provider that enables financial connectivity and access for businesses worldwide. By merging traditional finance with digital assets, bridging disparate economies, and connecting key financial players, we are transforming the financial landscape into a more interconnected and interoperable space for efficient money movement.
With stablecoin-enabled corporate cards, payout solutions, and expense management tools, we streamline financial operations and empower businesses to scale. Our APIs enable businesses to embed finance into their own products and services, from issuing Visa cards to facilitating cross-border payments.
Reap is supported by a strong network of investors, including Acorn Pacific Ventures, Arcadia Funds, HashKey Capital, Hustle Fund, Fresco Capital, Abacus Ventures, and Payment Asia.