Senior Software Engineer, Developer Platform

🕒 Julho 7

🇺🇸 Estados Unidos – Remoto (EUA)

⏰ Tempo Integral

🟠 Sênior

🏗️ Engenheiro de Plataforma

👻 Score fantasma 25%

O que significa: a chance de ninguém estar realmente contratando para esta vaga.Como ler: 60% ou mais significa que achamos que é uma vaga fantasma. Pontuações mais baixas preocupam menos.Como pontuamos: tempo em aberto, republicações, vagas abertas vs tamanho do time, rapidez para fechar vagas, e se o salário está divulgado.Observação: é uma estimativa de dados públicos, não um julgamento da empresa. Vagas reais podem ter pontuação alta, então use como uma dica, não como um fato.

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Offchain Labs

SiteLinkedInTodas as Vagas

11 - 50 funcionários

Fundada em 2018

₿ Cripto

🌐 Web 3

Crypto • Web 3 • Blockchain Technology

A Offchain Labs é uma empresa apoiada por investimentos de risco, fundada em Princeton, que se especializa no desenvolvimento de tecnologias de blockchain, particularmente para escalonar a rede Ethereum. Conhecida por sua inovadora tecnologia Arbitrum, a Offchain Labs oferece um conjunto de produtos voltados para aprimorar as capacidades do Ethereum, incluindo o Arbitrum One, Arbitrum Nova e Arbitrum Orbit. A empresa também fornece ferramentas como Prysm, um dos principais clientes de consenso para Ethereum, e Stylus, um ambiente de programação para implantar contratos inteligentes compatíveis com EVM. A Offchain Labs foca em criar soluções inovadoras e acessíveis para desenvolvedores, empresas e indivíduos utilizarem o Ethereum de forma eficaz.

Descrição

• The Developer Platform team builds KMS, the key-management and signing service behind ZeroDev's embedded wallets (smart-account / account-abstraction wallets that app developers drop into their products). It is non-custodial: end users control their keys, and the service orchestrates secure creation, authentication, and signing on top of a third-party signing provider. This is security-critical infrastructure, externally audited, with a high review bar. You will own backend services and the cryptographic recovery and trust-model machinery around them on a small, high-ownership team, and help grow the platform from interactive consumer wallets toward programmatic and automated signing and programmable transaction policy. • Go backend services that broker wallet creation, authentication, and signing at scale. • Key recovery and the committee trust model: distributed key generation and secret sharing that keep the service non-custodial, with recovery authority split across independent committees so no single party ever holds a user's key. • Trusted Execution Environments: reconstructing and operating on key material under hardware isolation and remote attestation. • Authentication and signing-provider integration: the user-facing auth methods that gate signing (passkeys / WebAuthn, OAuth, OTP, sessions, 2FA), and integrating with a third-party signing provider (authorization and policy flows, scoped credentials, quorum / consensus approvals). • Security review and hardening: writing design docs and decision records, working directly with external security auditors, and turning a high review bar into shipped code. • Production operations on Kubernetes: observability and alerting, secrets and certificate management, on-call, and the compliance controls the domain requires (sanctions screening, PII-safe handling)

🎯 Requisitos

• A strong backend engineer who has shipped and operated production services in Go (or an adjacent systems language and is eager to go deep in Go) • Security-first by default: you reason about threat models, blast radius, and key custody as a habit, and you write code that holds up to security-critical review • Comfortable with applied-cryptography fundamentals (public-key crypto, signatures, key management). You do not need to be a cryptographer, but you can reason about it and learn fast • Solid on distributed systems and API design: idempotency, failure modes, and clean service boundaries • Operationally mature: Kubernetes, observability, and incident response are not foreign to you • Clear written communicator (design docs, decision records) who thrives in a collaborative, review-heavy culture • Nice-to-have • TEE experience (AWS Nitro Enclaves, Intel SGX / TDX, or similar): attestation, enclave key handling, reproducible enclave builds • Threshold cryptography / MPC in practice: DKG, FROST or other threshold signatures, verifiable secret sharing, resharing • Account abstraction: ERC-4337, EIP-7702, smart-account or embedded / non-custodial wallet experience • Built on or integrated a custody / signing provider (Turnkey, Fireblocks, or similar), or built one • HSM / YubiKey / PIV / secure-element integration • Been on the receiving end of a third-party security audit and driven the remediation • WebAuthn / passkeys, OAuth / OIDC, and the Go crypto ecosystem

🏖️ Benefícios

• Remote-first global workforce + NY office • Annual company offsite + team onsites • Professional reimbursement program (facilitates industry conference attendance, certifications, and more) • Medical, dental & vision coverage (US + some other countries) • 401k retirement plan + company match (US only) • Wellness stipend • Home office set up / ergonomic equipment program

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