Blockchain Engineer

• Architect and build a custom blockchain application using Go, Cosmos SDK, and CometBFT (Tendermint)
• Implement and optimize privacy-preserving primitives, specifically Pedersen Commitments and Bulletproofs (Range Proofs), ensuring no trusted setup is required
• Engineer custom ABCI++ extensions (specifically PrepareProposal and Vote Extensions) to implement an on-chain Multi-Party Computation (MPC) mixing network
• Design a custom KVStore state machine that manages homomorphic encrypted balances (Elliptic Curve points) instead of plaintext integers
• Optimize cryptographic operations (scalar multiplication, point addition) for low latency and high throughput in a distributed environment
• Build secure off-chain query layers and 'view key' mechanisms that allow for granular, permissioned regulatory auditing

Senior Protocol Engineer

• deliver operational risk oversight for Fidelity Digital Asset Management and its related businesses
• work across business, technology, product, legal, compliance, and operations to assess operational readiness
• evaluate, communicate, and manage operational risks associated with digital-asset initiatives
• develop tools and analytics to monitor operational risks across Fidelity’s digital‑assets ecosystem
• support the development and launch of innovative new products involving crypto and blockchain technology in a risk-managed way
• perform proactive and targeted data analysis and risk assessments to identify risks for management

Digital Assets Risk Manager – Crypto & Blockchain

• develop your skills and collaborate with engineers across Fidelity in a fun and dynamic environment
• work closely with technical leaders and Architects to build a secure crypto platform utilizing modern software development practices
• mentor engineers on the best practices for Software development

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Senior Protocol Engineer

Digital Assets Risk Manager – Crypto & Blockchain

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