Sr. API Engineer - Security Hardening, Bots, Scalability\ @ Recruiting From Scratch - Philadelphia, PA

Job Overview

16 days ago

Sr. API Engineer - Security Hardening, Bots, Scalability\

Recruiting From Scratch - Philadelphia, PA

Who is Recruiting from Scratch:

Recruiting from Scratch is a premier talent firm that focuses on placing the best product managers, software, and hardware talent at innovative companies. Our team is 100% remote and we work with teams across the United States to help them hire. We work with companies funded by the best investors including Sequoia Capital, Lightspeed Ventures, Tiger Global Management, A16Z, Accel, DFJ, and more.

If you are a fit, the team will reach out to you about this role or any others that may be a fit for our clients

Our Client
Founded in 2018, Our client uses blockchain technology to bring new forms of digital engagement to fans around the world. They are at an inflection point in our journey and it might be the perfect time for you to join us. Less than 6 months ago we launched NBA Top Shot on the new Flow blockchain and it's already on track to be the fastest-growing marketplace in history. Our client is now profitable and ready to invest in building out the ecosystem so that everyone can benefit.

They are the world's first blockchain entertainment company. They are the creators of industry-leading experiences including CryptoKitties and NBA Top Shot, as well as Dapper Wallet, the simplest way to manage your assets and use the blockchain. They are also the original developers behind Flow, a new decentralized blockchain designed from the ground up for scalability and ease of use.

Our client's mission is to make the world a more open, empowering, and enjoyable place through consumer adoption of decentralized technologies. They have raised over $350M from leading VCs including Fred Wilson (USV) and Chris Dixon as well as Venrock, Samsung, Google Ventures, Coatue, NBA players, and global artists, among others. Some of their partners include the NBA and NBPA, the NFL-PA, Ubisoft, Warner Music, Turner, Dr. Seuss, Genies, and the UFC, as well as 100+ others.

The Role
Our client has three systems that need performance optimization and scalability:

NBA Top Shot: digital asset creation, marketplace trading, integration with mobile game


Dapper Wallet: payments, identity, fraud protection, KYC/AML


Flow blockchain: distributed systems, networking, latency


Most of their backend systems are in Go, frontends in React. They are open to awesome engineers across a variety of specialties but in particular would love to talk to engineers with consumer API hardening and protection experience. The Top Shot and Dapper APIs are constantly being bombarded by increasingly sophisticated bots and fraudsters. The ideal candidates for this role have worked on high-value targets before – e-commerce gateways, web poker, crypto – and know what to expect.

Titles or years of experience don't matter to us – impact, authenticity, and values alignment do. We are now a remote-first team but mostly on PST so time zone alignment helps too :)

About You

Quickly gains proficiency when exposed to unfamiliar technical patterns, systems, or languages


Is able to unblock colleagues when they are faced with technical challenges


Is a strong communicator who can collaborate well with other non-technical functions (e.g. Product & Design)


Has the courage to try out new tools, fail fast, and dive into unknowns to solve new and challenging problems


Bonus Points
Familiar with our commonly used technology choices (Golang, Node, Javascript)

Developed decentralized applications, infrastructure, or interacting with blockchains

Understand the deployment process, and is comfortable with docker, containers, and kubernetes

Familiar with event driven architectures, Kafka, and comfortable with eventual consistency

Have a strong understanding of application and API security

Have expertise in payments

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