Nethermind Tech Stack

Ethereum protocol engineering and blockchain security services

IT Services and IT Consulting London, London 201–500 employees Founded 2017 Privately Held

Nethermind builds infrastructure and security tools for Ethereum and layer-2 blockchains, with deep expertise in protocol engineering, smart-contract auditing, and DeFi systems. The tech stack reveals a dual focus: Solidity and Cairo for smart-contract work, paired with Go, Rust, and C++ for protocol-level development, plus emerging work in AI agents and telemetry backends. Hiring is accelerating across engineering (10 roles) and security (6 roles) — a 2:1 ratio that reflects both the core business and a growing push into operational tooling and hardware-software integration.

Tech Stack 24 technologies

Core StackGo Rust C++ Python TypeScript Java Kotlin Figma RAG C# Cursor Solidity Cairo Ethereum Virtual Machine StarkNet Ethereum Raspberry Pi NVIDIA Jetson USB GPIO Starknet Foundry IPFS

What Nethermind Is Building

◆Challenges

Identifying pilot opportunities
Ensuring security of decentralized systems
Remediating cryptographic vulnerabilities
Building local market presence
Reconciliation audit trails
Building reliable telemetry backend
Early manufacturing readiness
Quality risks
Supply-chain risks
Defining product architecture across hardware and software

▲Active Projects

Telemetry backend for prototypes and pilots
Ai agent workflows for operator-facing use cases
Identifying pilot opportunities
Internal blockchain security tooling
New security tools for cryptography and zk systems
Mvp definition and prototype scope
Pilot roadmap development
Ethereum and starknet protocol review
Backend for multiple pilot environments and connected devices
Event ingestion pipelines

Hiring Activity

Accelerating25 roles · 20 in 30d

Department

Engineering

Security

Sales

Design

Product

Seniority

Mid

Lead

Senior

Notable leadership hires: Business Development Lead

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About Nethermind

Nethermind is a blockchain research and engineering firm founded in 2017, based in London with 201–500 employees. The company serves Ethereum projects, layer-2 platforms, and DeFi businesses through three lines of work: protocol-level R&D and contributions to Ethereum core, smart-contract security auditing and development, and emerging infrastructure for distributed systems (telemetry, event ingestion, operator-facing AI agents). Active projects span protocol review, internal security tooling for cryptography and zero-knowledge systems, and definition of product architectures that blend hardware and software. The team is distributed across Poland, Romania, Hungary, Mexico, Singapore, and the Americas, with hiring velocity accelerating.

HeadquartersLondon, London

Company Size201–500 employees

Founded2017

Hiring MarketsPoland, Mexico, Romania, Singapore, Hungary, United States, China, Japan

Frequently Asked Questions

What programming languages does Nethermind use?

Solidity and Cairo for smart contracts; Go, Rust, and C++ for protocol and backend work; Python and TypeScript for tooling and agents. Foundry is their primary smart-contract development framework.

What is Nethermind working on?

Protocol review and core contributions to Ethereum and Starknet; internal security tooling for cryptography and zero-knowledge systems; telemetry and event-ingestion backends; AI agent workflows for operators; and hardware-software product definition for distributed systems.

How this profile is built

Nethermind's technology stack, projects, and hiring signals are inferred from public hiring and company data — career pages, public listings, and company web presence — then clustered and de-duplicated. Figures are estimates that refresh over time. Read our full methodology →

This is not an official vendor or customer list. It is a technology-adoption signal inferred from public data, intended for B2B research.