- Own reliability end-to-end: Establish versioning strategies, staged rollouts, and CI/CD pipelines for client-side code that runs in customer browsers.
Requirements
ABOUT THE ROLE Taktile helps financial institutions make smarter, safer decisions with the power of AI.
By combining AI with a rich ecosystem of financial data, we enable companies to adapt their decision-making in real time as markets, customer behavior, and risks evolve.
We're looking for a Senior Full-Stack Engineer to be a founding member of the Web SDK team and help shape this product from the ground up.
You'll own the architecture of a unified client-side SDK that abstracts identity verification, device intelligence, and document capture behind a single, elegant integration, used by financial institutions to onboard customers securely and seamlessly.
If you've built SDKs, shipped embeddable components, or worked on developer-facing products that run in other people's browsers, and you're excited about doing it again at the intersection of fintech and platform engineering, we'd love to talk.
As the team grows, you'll have the opportunity to step into a tech lead role. - Work directly with customers: Engage with early adopters to understand their integration environments and ensure the SDK works flawlessly in the real world.
We collaborate in person regularly and don't offer remote-only for this position. - Fluent English required.
You'll write design docs, review PRs with context, and occasionally join customer calls. - Strong engineering fundamentals across the full stack: you're equally comfortable designing clean APIs and building responsive, accessible front-end experiences. - Deep understanding of how browsers work: the DOM, security models (CSP, CORS, iframe sandboxing), caching, script loading, and performance. - Comfortable operating systems in production and participating in incident response as part of a team rotation.
experience - At least 2 years building and shipping a client-side SDK, embeddable widget, or developer-facing JavaScript library used by external consumers.
experience with TypeScript/JavaScript on both client and server. You've built modern front-end applications and understand bundling, tree-shaking, and cross-browser compatibility deeply. -
Experience with iframe-based architectures, postMessage communication, and sandboxed execution environments. - Proficient in backend development (Python is a plus), you can build the APIs and configuration services that power the SDK. - Prior industry
experience with public cloud providers (preferably AWS). IDEAL, BUT NOT REQUIRED -
Experience in identity verification, fraud prevention, or fintech - you've worked with providers like Socure, Vouched, Onfido, Fingerprint, or ThreatMetrix. - Familiarity with media APIs (camera access, image capture, WebRTC) and the nuances of building permission-driven UX flows. -
experience as a tech lead or strong desire to grow into one, you enjoy mentoring, setting technical direction, and making architecture decisions that scale. - Knowledge of security and compliance considerations (SOC2, PII handling) for client-side applications in regulated industries.
ABOUT US Taktile helps financial institutions make smarter, safer decisions with the power of AI.
By combining AI with a rich ecosystem of financial data, Taktile enables companies to adapt their decision-making in real time as markets, customer behavior, and risks evolve.
Our mission is to build the world's leading platform for automated decision-making in financial services, setting the standard for how AI is applied responsibly and effectively in this industry.
We were founded by machine learning and data science experts with deep experience in financial services.
Backed by top investors including Y Combinator, Index Ventures, Balderton Capital, and Tiger Global, along with the founders of Looker, GitHub, Mulesoft, Datadog, and UiPath, we're building a world-class organization across all functions and levels to power the next generation of AI-driven decision-making in financial services.
Experience
EXPERIENCE - 5+ years of professional software engineering
Benefits
Get to know and leverage our network of leading tech investors and advisors around the globe. - Receive a top-of-market equity and cash compensation package. - Get access to a self-development budget you can use to e.g. attend conferences, buy books or take classes. - Receive a new Apple MacBook Pro, as well as meaningful home office set-up.
Additional details
Our software gives teams the tools to automate complex decisions, from customer onboarding and underwriting to fraud detection, with full visibility and control.
This is a high-impact, high-ownership role with a clear path to leading the team as it grows.
experience: Create a secure, embeddable web application that renders interactive identity verification flows with a polished, brandable UX.
- Solve hard integration problems: Wrangle vendor SDKs that each have their own quirks, lifecycle hooks, and failure modes, and make them work together seamlessly.
- Shape the product and the team: Collaborate with Product, Design, and customers to define the SDK's developer experience.
REQUIREMENTS - Hybrid role based in Berlin or London.
You know what it takes to version, distribute, and support code that runs in environments you don't control. - Production
OUR OFFER - Work with colleagues that lift you up, challenge you, celebrate you and help you grow.
We come from many different backgrounds, but what we have in common is the desire to operate at the very top of our fields.
If you are similarly capable, caring, and driven, you'll find yourself at home here. -