EngineeringHybrid

Protocol Software Engineer - Consensus

Sei Labs · Hybrid

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Last seen by MeritLog September 9, 2026Source: AshbySource version: ashby-public-job-posting-v1

MeritLog read this listing from Sei Labs's Ashby job board and last checked it on September 9, 2026.

Source: the employer's Ashby job board. Open the original listing for current details.

Job details

Work model: Hybrid
Salary: Not listed by source
Location: New York City
Company website: www.sei.io

Hiring context

How this role compares at Sei Labs

Sei Labs has 7 live roles in MeritLog’s catalog across 2 job families, and 6 of them are in engineering. 0 of those listings publish a pay range, a disclosure rate of 0%.

Counted across the job boards MeritLog tracks, at the time this page was served. Pay comparisons use only listings that publish a complete range in the same currency and period.

What the role asks for

What you'd do

Write code to build the core sei blockchain (consensus, state management, etc.)
Proactively identify and drive optimizations and improvements to the product.
Collaborate with our frontend team to fine tune our REST API to support our customers.
Take ownership over your work and the work of the team.

What they're asking for

5+ years of infrastructure engineering experience.Experience
Proven results in building or scaling Layer 1 blockchains performance.Skill
A proven tech lead with experience planning and leading large projects with long-term impact on a single system or team.Skill
Strong technical grasp and excellent judgment on task prioritizations.Skill
Able to tackle complex engineering problems that deliver results.Skill
History of creating and applying new processes and tooling to increase engineering efficiency.Skill

Parsed by MeritLog from the employer’s own posting. The full description follows below.

Job description

About Sei Labs Sei Labs builds open sourced technology for the high-performance Sei Blockchain, the first parallelized EVM Layer 1 blockchain designed to scale with the industry. The unique optimizations built into Sei enable Web3 applications to reach Web2 level scale and performance, driving the mass adoption of digital assets. Our teams are comprised of former Google, Goldman Sachs, Robinhood, Nvidia, and Databricks veterans dedicated to onboarding the next billion users onto a vibrant ecosystem of applications. Sei Labs has raised over $30M from top investors including Jump Crypto, Multicoin Capital, Coinbase Ventures, Distributed Global, Hudson River Trading, and Flow Traders. Check out our website https://www.sei.io/ and docs https://www.docs.sei.io/dev-intro for more details. Protocol Engineering at Sei Sei Labs is looking for a Protocol Engineer to lead the development of core components of the Sei Blockchain. You'll work at the forefront of blockchain infrastructure, designing and optimizing the foundational layers of a high-performance, scalable decentralized network. You'll collaborate closely with our engineering team and ecosystem partners, constantly innovating to push the boundaries of blockchain technology. If you're passionate about low-level systems design, performance optimization, and shaping the future of decentralized networks, this is a rare opportunity to make a lasting impact in Web3. Responsibilities - Write code to build the core sei blockchain (consensus, state management, etc.) - Proactively identify and drive optimizations and improvements to the product. - Collaborate with our frontend team to fine tune our REST API to support our customers. - Take ownership over your work and the work of the team. Qualifications - 5+ years of infrastructure engineering experience. - Proven results in building or scaling Layer 1 blockchains performance. - A proven tech lead with experience planning and leading large projects with long-term impact on a single system or team. - Strong technical grasp and excellent judgment on task prioritizations. - Able to tackle complex engineering problems that deliver results. - History of creating and applying new processes and tooling to increase engineering efficiency.

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