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@lambdaclass

Lambdaclass

Lambda is a deep tech venture studio blending research and engineering, with global offices and expertise from cryptotgraphy, distributed systems and compilers

Lambda

We are a deep tech engineering firm founded in 2014. We build software that is fast and provably correct using Lean 4, Rust, and Erlang/Elixir. With 100+ engineers specializing in formal verification, cryptography, distributed systems, and high-performance software, we operate teams in Buenos Aires, Montevideo, and Barcelona as part of Ergodic Group.

Philosophy

Most software relies on faith rather than proof. We advocate for mathematical guarantees about software behavior. Formal verification is an evolution beyond memory safety: the machine checks the reasoning, the code is public by default, and correctness is a property of the system, not a hope.

Areas of Work

  • Verified Optimization
  • Verifiable Computation (zero-knowledge proofs, verifiable execution)
  • High-Performance Systems
  • Distributed Systems (consensus, P2P networking, fault-tolerant architectures)
  • Safety-Critical Software (aerospace, automotive, finance)
  • Artificial Intelligence
  • Engineering Software
  • Post-Quantum Cryptography

Selected Projects

Blockchain Infrastructure

  • Ethrex — Ethereum execution client in Rust (20x performance optimization)
  • Ethlambda — Lean Ethereum consensus client, post-quantum ready
  • Lambda Ethereum Consensus — Elixir-based consensus client
  • Lambdaworks — Cryptographic proof library (SNARKs, STARKs)
  • Cairo VM — Rust Cairo VM implementation powering Starknet's sequencer (30K–220K Cairo steps/sec)
  • Cairo Native — Sierra IR to MLIR compiler

Verification & Compilers

  • AMO-Lean — Verified optimizations in Lean 4
  • Lambda Compiler Kit — Formally verified compiler toolkit
  • Concrete — Programming language with Lean 4 integration

AI

  • Tekton — Self-hosted AI coding agent platform

Engineering

  • Dedaliano — Browser-based structural analysis tool

Systems & Infrastructure

  • Spawned — Erlang-style actor model for Rust
  • eth-agent — Ethereum interactions for AI agents

Selected Clients

  • Levenue — Rebuilt and operates infrastructure for Europe's largest revenue-based financing platform ($1B in loans annually)
  • Commit-Boost — Open-source validator sidecar securing 40% of Ethereum validators
  • Nous Research — Building Psyche, a decentralized AI training network in Rust
  • Miden — 18+ months developing the Miden client for transaction execution and proving
  • Aligned — ZK security research, SP1 exploit discovery, Ethrex integration, and LambdaVM development
  • Starknet — Built the Rust Cairo VM powering the sequencer

Patronage

  • Universidad de Buenos Aires: $1M donation for scholarships
  • Rust Foundation: $100K donation
  • Gleam Programming Language: monthly donations
  • Roc Programming Language: monthly donations
  • Argentine Astronomical Association: $10K/year

Connect

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  1. ethrex ethrex Public

    Minimalist, stable, modular, fast, and ZK native implementation of the Ethereum protocol in Rust. L1 and L2 execution client.

    Rust 856 193

  2. lambdaworks lambdaworks Public

    lambdaworks offers implementations for both SNARKs and STARKs provers, along with the flexibility to leverage their individual components for constructing customized SNARKs.

    Rust 731 189

  3. concrete concrete Public

    Concrete is a simple programming language specifically crafted for creating highly scalable systems that are reliable, efficient, and easy to maintain.

    LLVM 321 20

  4. truth_research_zk truth_research_zk Public

    Verified Optimizing Compiler for Cryptographic Primitives

    Lean 32 3

  5. stabileo stabileo Public

    Open-source 2D & 3D structural analysis in the browser. Direct Stiffness Method, real-time solving, no installation required.

    Rust 26 2

  6. tekton tekton Public

    Tekton is a self-hosted platform for running background AI coding agents at scale. The goal is infrastructure that builds things for you.

    TypeScript 18

Repositories

Showing 10 of 395 repositories
  • truth_research_zk Public

    Verified Optimizing Compiler for Cryptographic Primitives

    lambdaclass/truth_research_zk’s past year of commit activity
    Lean 32 MIT 3 1 3 Updated Apr 14, 2026
  • ethlambda Public

    A minimalist and fast Lean Consensus client by LambdaClass, bringing expertise in distributed systems and blockchain infrastructure to deliver a robust and performant implementation.

    lambdaclass/ethlambda’s past year of commit activity
    Rust 73 MIT 18 38 (4 issues need help) 6 Updated Apr 13, 2026
  • ethrex Public

    Minimalist, stable, modular, fast, and ZK native implementation of the Ethereum protocol in Rust. L1 and L2 execution client.

    lambdaclass/ethrex’s past year of commit activity
    Rust 856 Apache-2.0 193 592 (40 issues need help) 207 Updated Apr 13, 2026
  • miden-faucet Public Forked from 0xMiden/faucet

    Token faucet application for Miden testnet

    lambdaclass/miden-faucet’s past year of commit activity
    Rust 0 MIT 2 0 0 Updated Apr 13, 2026
  • stablecoin Public

    Stablecoin Operations

    lambdaclass/stablecoin’s past year of commit activity
    TypeScript 2 0 13 9 Updated Apr 13, 2026
  • argentum Public

    Argentum Online

    lambdaclass/argentum’s past year of commit activity
    Elixir 2 Apache-2.0 0 0 0 Updated Apr 13, 2026
  • miden-vm Public Forked from 0xMiden/miden-vm

    STARK-based virtual machine - For Lambdaworks Prover

    lambdaclass/miden-vm’s past year of commit activity
    Rust 0 Apache-2.0 293 0 0 Updated Apr 13, 2026
  • CommitLLM Public

    CommitLLM is a cryptographic commit-and-audit protocol for open-weight LLM inference.

    lambdaclass/CommitLLM’s past year of commit activity
    Rust 88 MIT 4 0 0 Updated Apr 13, 2026
  • stabileo Public

    Open-source 2D & 3D structural analysis in the browser. Direct Stiffness Method, real-time solving, no installation required.

    lambdaclass/stabileo’s past year of commit activity
    Rust 26 AGPL-3.0 2 0 3 Updated Apr 12, 2026
  • tekton Public

    Tekton is a self-hosted platform for running background AI coding agents at scale. The goal is infrastructure that builds things for you.

    lambdaclass/tekton’s past year of commit activity
    TypeScript 18 0 60 13 Updated Apr 9, 2026

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