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Rollup Engineer


Remote within South Africa, Europe, Asia, Africa

CET (–3/+3 h)

Posted 3 months ago

Join us to help solve hard problems that have asymmetric impact and strike at the core of crypto.

Tech stack

  • Rollup

Flashbots is a research and development organization working on mitigating the negative externalities of Maximal Extractable Value (MEV) and avoiding the existential risks MEV could cause to stateful blockchains like Ethereum. Our primary focus is to enable a permissionlesstransparent, and sustainable ecosystem for MEV, via a three-pronged approach:

  • Illuminate: Bringing transparency to MEV activity.
  • Democratize: Democratizing access to MEV revenue.
  • Distribute: Enabling sustainable distribution of MEV revenue.

About the Role

Flashbots is seeking a talented backend engineer to join our team in exploring proposer-builder-separation (PBS) on Ethereum Layer 2. Your deep understanding of Ethereum, Rollups, and MEV auctions will be vital to this role as we work towards enshrining PBS and decentralizing L2 sequencers.


  • Develop a comprehensive understanding of the PBS design space and the Ethereum L2 ecosystem, along with the unique challenges and features of individual rollups
  • Collaborate closely with rollups on the decentralization of their sequencers
  • Research, develop, and evaluate L2 PBS designs, MEV-Boost on L2, and L2 MEV auctions
  • Explore potential paths toward enshrined PBS in collaboration with Ethereum Foundation, the community, and the broader ecosystem


  • Experience with Ethereum consensus, and consensus protocols more broadly
  • Familiarity with L2 technologies and platforms, such as Optimistic Rollups and zk-rollups
  • A strong background in distributed systems, cryptography, and network protocols
  • Familiarity with multiple programming languages, including but not limited to Golang, Rust, and Solidity
  • Strong problem-solving skills with the ability to work independently and make critical decisions under pressure
  • A genuine interest in blockchain consensus designs and the challenges they present
  • Demonstrated ability to handle multiple projects simultaneously and meet deadlines
  • Excellent written and verbal communication skills in a remote environment
  • Works within Asian, African, or European time zones

What makes you a perfect
candidate for this role

  • 2+

    years of commercial experience
  • Language skills:





Role type

Full time

Visa sponsorship

Not provided

Benefits & perks

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