Senior Full Stack Software Engineer

Axis Global Tech Limited; Hong Kong; On-site; HKD 700,000 - 1,000,000; Full time

Job summary

Axis Global Tech Limited, based in Hong Kong, is seeking a senior full‑stack engineer to advance core fintech platform features for real‑time payments and institutional clients.

You will work with TypeScript, Node.js, React, and PostgreSQL, build REST APIs, and integrate with payment rails while upholding security and reliability in cloud deployments.

Qualifications

• Bachelor's or Master's degree in Computer Science, Software Engineering, or equivalent.
• Minimum 5 years of professional full stack engineering experience, with fintech or financial systems.
• Strong proficiency in TypeScript, Node.js, and React; PostgreSQL or equivalent relational DBs.
• Experience designing and consuming REST APIs in production.
• Hands-on experience with AWS and infrastructure-as-code tooling.
• Security-focused with OAuth/WebAuthn and session security best practices.

Responsibilities

• Develop and maintain full stack features across web and backend services (Node.js, PostgreSQL).
• Integrate fiat banking rails and payment infrastructure (ACH, card issuing, ledger, real-time networks).
• Implement authentication and security solutions (passkeys, device biometrics, OAuth, WebAuthn).
• Design and consume REST APIs; build robust interfaces for internal/external use.
• Participate in architecture decisions for scalability, security, fault tolerance, and trust.
• Define and deploy cloud infrastructure using AWS CDK with IaC practices.
• Champion best practices: code reviews, automated testing, CI/CD, observability, documentation.
• Mentor junior/mid-level engineers; contribute to hiring and culture.

Skills

TypeScript

Node.js

React

PostgreSQL

REST APIs

AWS

Education

Bachelor's or Master's in CS/Software Engineering or equivalent

Tools

AWS CDK

CI/CD

OAuth/WebAuthn

Job description

• 5+ years engineering experience with fintech or financial systems
• We're looking for someone who can start within the next 1 month.

About Us

We are a Hong Kong-based fintech company building mission-critical financial infrastructure across payments. This is an opportunity to work on core platform systems that handle real-time transactions and serve institutional clients. We value engineers who take ownership, ship with urgency, and care deeply about building secure, reliable financial systems.

Responsibilities

• Develop and maintain full stack features across web and backend services (Node.js, PostgreSQL) powering the company's fintech platform
• Integrate fiat banking rails and payment infrastructure including ACH, card issuing, ledger systems, and real-time payment networks (e.g., FPS, SWIFT)
• Implement authentication and security solutions including passkeys, device biometrics, OAuth, WebAuthn, and session management to protect client assets and data
• Design and consume REST APIs; build robust, well-documented service interfaces for internal and external consumption
• Participate in architecture decisions shaping system scalability, security, fault tolerance, and user trust across the platform
• Define and deploy cloud infrastructure using AWS CDK, applying infrastructure-as-code practices for reproducible, auditable, and version-controlled deployments
• Champion engineering best practices including code reviews, automated testing, CI/CD pipelines, observability, and comprehensive documentation
• Mentor junior and mid-level engineers; contribute to technical hiring and building the engineering team culture

Requirements

• Bachelor's or Master's degree in Computer Science, Software Engineering, or a related field, or equivalent professional work experience
• Minimum 5 years of professional full stack engineering experience, with demonstrated work on financial or fintech systems
• Strong proficiency in TypeScript, Node.js, and React; experience with PostgreSQL or equivalent relational databases
• Experience designing and consuming REST APIs in production environments
• Hands-on experience with AWS and infrastructure-as-code tooling
• Solid understanding of authentication models (OAuth, WebAuthn, session security) and security best practices for financial applications
• Proven ability to work effectively with AI coding agents and to critically review the code and changes they produce
• Self-starter with strong ownership mentality who thrives in ambiguous, fast-paced environments; comfortable proposing solutions and driving them to completion

Preferences

The following are not required, but candidates with any of these will stand out:

• Familiarity with AWS CDK specifically
• Experience with fintech or payments APIs (e.g., Stripe, Plaid, Marqeta, Column, Lithic, Unit) or banking integration (ACH, card networks, ledger systems)
• Fluency in native iOS (Swift) and/or native Android (Kotlin) development
• Proficiency in Cantonese and/or Mandarin

Hiring Process

Candidates progress through the following stages and must pass each one to advance to the next:

• Programming screening — an unproctored multiple-choice test covering core programming fundamentals
• Technical interviews — two live interviews (no coding) of similar content, each conducted by a different interviewer, building on the candidate's screening answers and covering software engineering fundamentals and problem-solving