waypointjobs

Knot

Senior Fullstack Engineer

new york, NY

Check who can apply and the requirements below before continuing.

About this opportunity

Knot lists this Senior Fullstack Engineer opportunity in new york, New York. Review the employer’s description below for duties, qualifications and application requirements.

Job description

About Knot

Knot’s mission is to empower consumers and businesses alike with connected merchant and banking experiences. Knot is like "Plaid for merchant connectivity." We are building the platform connecting merchants to the many applications that consumers and businesses interact with everyday. Our flagship product allows consumers to instantly update & manage their cards on file with online merchant accounts (e.g. Netflix or PayPal). We are building many new products on top of our novel merchant connectivity platform and we hope you choose to come build them with us!

Founded in 2021, Knot was founded by two brothers - Rory and Kieran O'Reilly - and today powers connected online payment experiences for hundreds of thousands of consumers. Companies like Current, BILT, and Fizz choose to embed Knot’s SDK in their apps to power best-in-class experiences for their customers.

Knot is proudly backed by a select group of investors, including Nava Ventures, 8VC, American Express, Plaid, and co-founders & CEOs of prominent companies like Twitter, Warby Parker Allbirds, Casper, Intercom, Deel, Italic, DraftKings, and many more, along with Lydia Jett of SoftBank Group.

Working at Knot

We’re a world-class team hailing from all over the globe with the vast majority of the company in engineering roles. We are looking to further solidify our presence in NYC to be at the heart of the financial services ecosystem.

Our team is relentlessly focused on building for our customers and every member of the financial services ecosystem. We take our work seriously and have fun while doing it. Both are equally important.

What you’ll do

Work alongside a team to build, experiment with, and debug user-facing features on Knot’s CardSwitcher and Subscription Management products.

Build brand new products alongside existing features to drive further value for end users.

Develop user interfaces with React/TypeScript on the frontend and Laravel/PHP at the API layer.

Foster a culture of deep care for industry-leading user experience.

What you’ll need to get the job done

5+ years of fullstack engineering experience.

Proficiency in React, Node/Typescript, Laravel/PHP, and CloudSQL (or similar relational database).

Track record of shipping high-quality products at scale.

Strong knack for getting the visuals right.

You understand observability and enjoy digging into the details to solve performance and user experience issues.

You excel in a rapidly growing organization and embrace challenging problems, tackling them directly and taking the initiative to lead the solution.

Eagerness to work in a fast-paced, dynamic environment and constantly grow & develop your craft.

Expert communication and ability to collaborate seamlessly with product teams.

Experience with fintech or consumer apps is a plus.

Tech

React frontend with Styled Components

Material-UI and CSS modules for styling

React-query/Axios for API calls

PHP/Laravel, Typscript/Node, Python, Socket.io in the backend

CloudSQL & Redis

Hosted on Google Cloud Functions and k8s

Github, Linear, Slack, Notion

What we offer

Interesting and challenging work

Competitive base salary + generous early employee equity + benefits

100% medical, dental, and vision insurance coverage for you and your dependents (U.S.)

Unlimited PTO

Parental leave

Beautiful NYC office in the heart of Flatiron

#J-18808-Ljbffr

Worksite address

new york, NY, 10261, US

Who can apply

Review the original listing for work authorization, qualifications and employer requirements.

Ready for your next step?Apply on the official website
Apply on WhatJobs ↗

Explore related searches

Current related jobs

Johns Hopkins Applied Physics Laboratory (APL)

WhatJobs

Space Systems Mechanical Engineer

laurel, MD

See pay details in description

Description Do you want to design and build unique space structures and spacecraft for NASA missions that enable groundbreaking scientific disco…

Listing review due 2026-10-06View job

Johns Hopkins Applied Physics Laboratory (APL)

WhatJobs

System Security Engineer

laurel, MD

See pay details in description

Description Are you looking for an opportunity to utilize your technical skills to solve complex, real-world problems? If so, we're looking …

Listing review due 2026-10-06View job

Johns Hopkins Applied Physics Laboratory (APL)

WhatJobs

Advanced Reentry Mission Engineer

laurel, MD

See pay details in description

Description Are you interested in hypersonic and reentry system design and prototyping? Do you want to make contributions to next generation …

Listing review due 2026-10-06View job

Johns Hopkins Applied Physics Laboratory (APL)

WhatJobs

Thermal and EO/IR Modeling and Simulation Engineer

laurel, MD

See pay details in description

Description Are you looking for a unique opportunity to impact significant advances to the nation's groundbreaking integrated air and missile de…

Listing review due 2026-10-06View job

Johns Hopkins Applied Physics Laboratory (APL)

WhatJobs

Network Effects Engineer

laurel, MD

See pay details in description

Description Do you want to perform advanced research, development, and test & evaluation of communications systems and network technologies that…

Listing review due 2026-10-06View job

Johns Hopkins Applied Physics Laboratory (APL)

WhatJobs

System Realization and Resilience Engineer

laurel, MD

See pay details in description

Description Are you passionate about applying system engineering principles to influence the development and resilience of future strategic weap…

Listing review due 2026-10-06View job