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Polygon Labs

L1 / L2 Protocol

Nov 3, 2026

Sales Engineer, London

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Job Description

Fireblocks is hiring a Sales Engineer in London to support its EMEA sales team by demonstrating the value of its digital asset infrastructure to prospects across banking, fintech, Web3 and enterprise. You will work with Sales Directors, Business Development Representatives and Product teams to design technical solutions for custody, tokenization, DeFi access and blockchain-based transaction flows.

Responsibilities

  • Pre-sales support: deliver tailored demos, workshops and Proofs of Concept with Sales Directors.
  • Solution design: assess client requirements and design solutions meeting scalability, security and compliance standards.
  • Technical presentations to technical and non-technical audiences, including C-level executives.
  • Guide clients through onboarding and integration with Fireblocks' MPC-based Wallet Infrastructure and APIs.
  • Lead technical responses to RFPs.
  • Work with Product, R&D and Security teams on customer feedback and solution alignment.
  • Track trends in custody, tokenization, payments and DeFi and act as a trusted technical advisor.

What we are looking for

  • Proven experience as a Sales Engineer or in a similar technical pre-sales role in SaaS, fintech, blockchain or cybersecurity.
  • Technical proficiency with SaaS platforms, APIs and security technologies.
  • Ability to turn complex technical concepts into clear, customer-focused value propositions.
  • Strong communication, collaboration and problem-solving skills.
  • Passion for blockchain technology and its use across industries.
  • Fluent English; other languages are a plus.

Perks and Benefits

  • Comprehensive onboarding and training
  • Competitive compensation and benefits
  • Career development opportunities
  • Work with leading financial institutions, fintechs and Web3 innovators

The Company: Polygon Labs

Ethereum scaling and Open Money Stack infrastructure provider.

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Polygon Labs is looking for

People working in

Sales >

Who specialize in

Sales & Account Management

With these skills

Pre-sales, APIs, MPC Wallets, Custody, Tokenization, RFPs

Willing to work

Full-time

With an experience level

Mid-level

Capacity

40 hours/week

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