Job description

**OPEN TO LONDON, UK APPLICANTS**

A Layer 1 for everyone.

Aptos is building a Layer 1 blockchain designed with an emphasis on absolute safety, extensible scalability, and credible neutrality — values that we know firsthand and viscerally understand. Now, on the fourth iteration of the consensus protocol, we are confident that Aptos is capable of bringing affordability, decentralization, and speed to the daily lives of billions of internet users. It is the lowest latency, optimistically-responsive BFT protocol available, and it features a robust, on-chain reputation system and novel methods for parallel execution — a key enabler of speed at scale. We will rapidly deploy many key innovations in performance, functionality and improvements to the overall user experience and leverage our ability to do major upgrades seamlessly in the process.

Aptos is a people-first blockchain on a mission to help billions of people achieve universal and fair access to decentralized assets in a safe and scalable way.

Founded by some of the original creators and maintainers that researched, designed, and built the Diem blockchain to serve this purpose, we have dedicated several years toward this mission. We believe the open-source Diem technology we have developed is an important foundation of a safe and scalable web3 world where everyone has more equitable opportunities to grow and access financial assets with lower fees and fewer intermediaries.

Aptos (Ohlone for 'The People') encompasses our mission and ethos for why we build.

About

As a member of the storage team, you’ll have the opportunity to design and implement our core blockchain data structure which enables smart contracts to execute efficiently on an account based storage model, optimize the throughput and latency of the blockchain by making superior data architecture and data flow, and build a foundation for a blockchain scaled out to multiple data shards.

What you'll be doing

• Design efficient data structures to represent the blockchain.
• Implement such data structures using Rust on top of key-value or relational databases, with support for multiversion concurrency control (MVCC).
• Optimize our data model exposed to the Move language to provide flexibility and ergonomics to smart contract developers to match their access pattern of data with proper storage granularity.
• Design and implement mechanisms that incentivizes smart contract developers and blockchain users to use on-chain storage space efficiently and responsibly, and keeps the cost low as well.
• Design authentication data structures that can power the collaboration of blockchain data shards or subnets in a trustless manner.
• Optimize the data flow inside of Aptos nodes to maximize the transaction throughput and minimize the transaction finality latency.
• Optimize the data architecture inside of Aptos nodes to leverage multiple data engines for different purposes.

What we're looking for

• 7+ years of experience as a hands-on software engineer
• Experience with key-value store and/or relational databases, file systems, caches.
• Familiarity with data structures like search trees, prefix trees, Merkle Trees, LSM Trees, BTrees, etc.
• Experience with system performance optimization.
• Experience with at least one system programming language such as Rust or C/C++.

Other things that could set you apart from the rest

• Located in any of our hubs (US - we're spread out across but have strong presence in the Bay Area; London - we have team members in broader Europe too).
• Fluent in English (native or professional fluency).
• Experience with any of the following: Layer 1s, top blockchain companies, DeFi, top Web2 companies.

Other notes

• We are open to consider junior candidates (~L4 equivalent). However, L4s & below will likely be expected to relocate to the Bay Area to be close to the team in order to boost learnings.
• We are open to sponsoring visas.

Job Type: Full-time

Pay: From $95,000.00 per year

Schedule:

• Day shift
• Monday to Friday
• Self-determined schedule
• Weekend availability

Experience:

• Computer networking: 5 years (Preferred)
• Software Engineering: 7 years (Preferred)
• System Performance Optimization: 2 years (Required)
• Rust: 1 year (Required)
• C++: 1 year (Required)
• Key-Value Store: 1 year (Required)
• Blockchain: 1 year (Preferred)
• Web2: 1 year (Preferred)
• Decentralized Finance: 1 year (Preferred)

Work Location: Remote

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