Senior Frontend Engineer

Join to apply for the Senior Frontend Engineer role at Tabby | تابي.

Department: Risk Technologies, Engineering

Employment Type: Full Time

Location: Remote

Reporting To: Artem Melnikov

Tabby creates financial freedom in the way people shop, earn and save by reshaping their relationship with money. Over 15 million users choose Tabby to stay in control of their spending and make the most out of their money. The company’s flagship offering allows shoppers to split their payments online and
- store with no interest or fees. Over 40, 000 global brands and small businesses, including Amazon, Noon, IKEA, and SHEIN use Tabby to accelerate growth and gain loyal customers by offering easy and flexible payments online and in stores. Tabby generates over $10 billion in annual transaction volume for its partner brands and is the
- rated,
- reviewed, largest, and
- growing Fin
Tech in the GCC region. Tabby launched in 2019 and has since raised +$1 billion in equity and debt funding from global and regional investors, and is now valued at $3. 3 billion.

Current Focus

• Auth SDK Platform - building unified Java
  Script/Type
  Script SDK for 15+ teams (strategic initiative)
• Consent Platform integration and migration (270k consents)
• Tabby Rebrand 2. 0 (design system and token migration)
• Trusted Device, B2B Auth, and KSA Nafath integration
• Back
  Office admin tools and audit systems
• Team Structure: 7 engineers + 1 PM + 1 EM, distributed across 5+ countries.

Key Responsibilities

• Develop and maintain UI screens with a focus on usability, performance, and aesthetics.
• Collaborate with Product Managers and Designers to build intuitive, UX-friendly interfaces.
• Work on Auth SDK Platform - build Java
  Script/Type
  Script SDK libraries (npm packages) for frontend teams, implement Passkey/Web
  Authn integration, crypto operations (Web Crypto API, HSM),
  - fraud mechanisms (JS Challenge, m
  TLS, device fingerprinting), and unify auth for 15+ teams.
• Contribute to Consent Platform
  - integrate platform widgets (full-screen and embedded), replace native screens, maintain UI/UX flows, and ensure regulatory compliance.
• Work on B2B Auth and Trusted Device - develop enterprise authentication flows, integrate Trusted Device with cryptography, HSM research for PIN security, and device fingerprinting for SAMA compliance.
• Ensure web applications meet
  - functional requirements such as performance, scalability, and security.
• Contribute to technical design decisions and support the delivery of midsize to large projects.
• Take ownership of selected applications, including
  - launch support.

What You'll Bring

• Strong experience with Java
  Script, Type
  Script, and React.
• Solid understanding of frontend development, from architecture to deployment.
• Hands-on experience with tools and frameworks such as Redux-Saga, Material UI, Jest, and Webpack.
• Experience with SDK development - building Java
  Script/Type
  Script libraries (npm packages), API design, versioning, backward compatibility.
• Knowledge of Passkey/Web
  Authn - Web
  Authn API, biometric authentication, FIDO2 standards.
• Understanding of cryptography - Web Crypto API, HSM integration, crypto operations, security best practices.
• Experience with
  - fraud mechanisms - JS Challenge, m
  TLS, device fingerprinting, bot detection.
• Understanding of widget/component integration - integrating
  - party widgets, platform components.
• Platform mindset - building systems for other systems, API design, developer experience.
• Excellent communication skills and a collaborative mindset.

What We Offer

• Full-time B2B contract
• Fully remote setup, work from anywhere in Europe
• Up to 20% tax allowance
• 22 paid leave days annually
• Stock options (ESOP) in a
  - scaling,
  - IPO company
• Flexi benefits you can use for wellness, travel, or learning
• Work alongside a
  - performing, international engineering team in a global fintech unicorn
• Relocation support is available to our hubs in Armenia, Georgia, Serbia, Portugal, and Spain, including flights, temporary accommodation, and legal setup, for up to $5, 000 in verified costs.