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Fidelity Investments

Senior Crypto Engineer

Fidelity Investments
Ireland · Full-time · Mid-Senior

Job Description

Senior Crypto Engineer

As a Senior Crypto Engineer at Fidelity Labs, you will play a pivotal role in the development of innovative, customer-facing crypto products for a greenfield project. You will architect and build secure, scalable, and user-centric digital asset solutions from the ground up, driving the crypto vision for Fidelity Labs’ crypto initiatives. Collaborating with product managers, designers, and cross-functional teams, you will design and implement cutting-edge blockchain-based systems focused on FinTech use cases, ensuring robust security, performance, and seamless user experiences. This is a unique opportunity to shape Fidelity’s crypto vision while working in a startup-like environment backed by the strength of a global financial leader.

The Expertise And Skills You Bring

  • Hands-on experience in digital asset development, including cryptocurrencies, blockchain protocols, and decentralized applications (dApps).
  • Proven track record of designing and building secure, scalable crypto systems, including wallets, smart contracts, or trading platforms.
  • Deep expertise in blockchain technologies (e.g., Ethereum, Bitcoin, or other layer-1/layer-2 protocols) and cryptographic principles (e.g., public-key cryptography, zero-knowledge proofs).
  • Significant contributions to open-source crypto projects, with publicly verifiable work on platforms like GitHub.
  • Strong programming skills in languages such as TypeScript, Solidity, Rust, Go, or Python, with experience in low-level systems programming for blockchain nodes or protocols.
  • Hands-on experience with customer-facing crypto products, such as wallets, exchanges, or DeFi platforms, and a focus on usability and security.
  • Proficiency in designing and implementing secure APIs, smart contracts, and system integrations for blockchain-based applications.
  • Experience with agile development, rapid prototyping, and iterative feature validation in a fast-paced, innovative environment.
  • Strong knowledge of decentralized finance (DeFi) and consensus mechanisms (e.g., PoW, PoS, DPoS).
  • Demonstrated ability to mentor and guide engineering teams, fostering technical excellence and innovation.
  • Excellent communication skills, with the ability to articulate complex cryptographic and blockchain concepts to technical and non-technical stakeholders.
  • Bachelor’s degree in Computer Science, Cryptography, Engineering, or a related field (preferred but not required).
  • Passion for staying at the forefront of crypto innovation, with a proactive approach to exploring emerging blockchain technologies and trends.

The Team

We are Fidelity Labs, Fidelity Investments’ in-house software incubator and digital studio. Founded in 2005, Fidelity Labs has played a critical role in driving growth and innovation for the firm. The Fidelity Labs organization has a portfolio of new businesses and is constantly prototyping concepts for Fidelity’s next new ventures.

Fidelity Labs is a dynamic workplace that combines the best parts of startup life—building from scratch, adapting quickly, and moon-shot ambition—with the scale and stability of an industry leader. Learn more at labs.fidelity.com.

For more like this search Crypto OR #CryptoJobs OR cryptocurrency OR blockchain OR "Digital Assets"

Category

Information Technology

Key Skills

Ranked by relevance

blockchain prototyping cryptocurrency typescript solidity python rust
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Posted
Jul 24, 2025
Type
Full-time
Level
Mid-Senior
Location
Dublin

Industries

Financial Services

Categories

Engineering Information Technology

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