Senior Web Engineer

As deepfakes and synthetic identities go mainstream, a new generation of biometric verification is essential to protect people’s digital identities. At Microblink, we're building the infrastructure to meet this challenge—and we’re looking for a Senior Web Engineer to help make it happen. In this role, you’ll lead development of our client-side web SDK, collaborating closely with backend, ML, product, and security teams to ensure seamless integration between web applications and our identity verification systems. Your work will enable customers to embed advanced fraud prevention directly into their websites—securely, reliably, and at scale.

We're looking for an experienced frontend engineer who’s passionate about building performant, well-architected SDKs using modern web technologies. Familiarity with WebAssembly (WASM) and the nuances of delivering consistent experiences across devices and environments is a strong plus. You'll help shape our SDKs from the ground up and deliver identity solutions that protect millions of users worldwide.

If you're excited to work at the intersection of frontend, biometrics, and browser-level challenges—on products that help safeguard real people—we’d love to hear from you.

A little bit about us 

Microblink is an AI company specializing in computer vision and identity fraud detection. We create unique products and tools designed to make the future of digital identity a secure "no-fake-zone." Our expertise includes running efficient machine learning models directly on-device, enabling a uniquely seamless Identity Verification (IDV) experience. With teams across the US and Europe and main offices in New York and Zagreb, we touch hundreds of millions of users each year, processing over 800 million identity documents across more than 70 countries worldwide.

Explore our tech in action here.

Here’s what you’ll do

• Develop a powerful web SDK for our Biometrics Verification solution, using modern web technologies (e.g. Typescript and WASM), ensuring fast performances and seamless browser integration.
• Participate actively in the entire product life cycle, from initial design and prototyping to launch and maintenance, making an impact and take ownership while you grow
• Collaborate closely with a cross-functional team, using WASM components written in C++ for high efficiency,  and interacting with backend services and components written in .NET, and Python. This is a unique opportunity to expand your impact vertically across a highly efficient tech stack.
• Quickly onboard into a new team by proactively learning systems, workflows, and team processes; actively seek out best practices and collaborate with colleagues to ensure smooth integration.
• Adopt a hacker mindset: think like an attacker to proactively identify weaknesses and develop ML-powered defenses against fraud and adversarial behavior
• Help the team make data-driven, sound decisions regarding frontend technologies, patterns, standards and architecture

You'll be successful in this role if you

• Have several years of experience building web applications running in production using React, and you are passionate about building reusable components
• Are excited about creating products powered by efficient (and proprietary) Machine Learning and Computer Vision technologies.
• Enjoy building products where efficient compute and performance are critical.
• Have a strong software engineering foundation, including strong knowledge of algorithms, data structures, Design Patterns
• Have extensive hands-on experience with foundational web technologies:
• HTML
• CSS with SASS or LESS
• ECMAScript/Typescript
• RESTful APIs and systems integration

• Have an essential software development skillset (“it goes without saying” type of skills): team collaboration skills and tools, and good English language skills. 
• Are responsible, proactive and driven by organizational and team success
• Take full ownership of your work — from idea to delivery, including design, implementation, testing, and maintenance

A plus is if you also have experience with

• WebAssembly
• C++
• SVG
• .NET
• Writing unit and component tests
• Working in fintech and e-commerce, developing identity verification and fraud prevention solutions at scale

Here’s what you’ll gain if you join us

• Microblink owes its success to its people. That is why we offer equity participation to all of our full-time employees so that we can grow together
• Unlimited PTO, giving you the flexibility to take time off as needed to maintain a healthy work-life balance.
• Location-specific "Pick & Choose" benefits tailored to meet diverse personal preferences and regional needs.
• Flexible work arrangements, allowing you to adjust your schedule—whether working remotely or at our Zagreb office.
• Opportunities to learn and develop your skills through internal L&D programs, and a supportive working environment.

How can you join us?

If this role intrigues you, do not hesitate to hit the apply button and send us your resume. Get in touch with us, and we promise to get back to you.