Common Prefix is seeking a full-time Support Engineer.

Applying

Please submit your application here.

Location

On-site in Athens, Greece

About us

Common Prefix is a blockchain research & development company. Blockchain technologies enable large-scale economic coordination through shared, programmable ledgers. Our mission is to solve the foundational scientific and engineering challenges standing in the way of mainstream adoption, particularly around interoperability, scalability, and usability.

We combine formal scientific research with production-grade engineering. Our team builds and maintains open-source infrastructure used across major blockchain ecosystems and has contributed to advanced systems including Axelar, XRPL, Sui, and Flashbots. We are trusted partners to protocols operating critical production infrastructure.

You can learn more about our company on our website.

Description

This is a full-time position for a Support Engineer, aimed at junior to early-mid engineers with strong technical fundamentals and excellent communication skills.

You will be on the front line of production support, monitoring live systems, responding to issues raised by partners and users, and ensuring that problems are triaged, resolved, or escalated efficiently. This role sits at the intersection of engineering, operations, and client communication, and is critical to the reliability and trustworthiness of the systems we operate.

You will work closely with software engineers, researchers, and external partners to debug issues, resolve straightforward problems on the fly, and escalate more complex incidents with clear, actionable context. Prior blockchain experience is helpful but not required; you will learn on the job how modern blockchain systems operate across ecosystems such as Axelar, Cosmos, and Ethereum.

The vast majority of our work is open source. You will gain hands-on exposure to real-world blockchain infrastructure and develop practical operational expertise in a production environment.

Responsibilities

In this role, you will work across the following areas:

• Production support and incident response
  • Monitor production systems, services, and infrastructure for reliability and performance.
  • Act as a first point of contact for alerts, outages, and issues reported by partners or users
  • Monitor and participate in partner communication channels (e.g. Slack, Telegram)
  • Triage incoming issues, reproduce problems, and resolve straightforward operational or configuration issues
  • Escalate complex bugs or incidents to software engineers with clear reproduction steps, logs, and context
  • Provide timely status updates and clear explanations during and after incidents
  • Participate in on-call rotations for production systems, always with shared ownership and senior support
• Partner communication and coordination
  • Serve as a primary point of contact for partners during operational issues
  • Communicate clearly and calmly with external teams under time pressure
  • Guide operators through upgrades, migrations, releases, and routine operational tasks
  • Translate complex technical issues into clear, understandable summaries for non-specialist audiences
  • Follow up to ensure required actions are completed and issues are fully resolved