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THE PROBLEM As Flock scales its investigative platform, building capabilities that directly accelerate how investigators surface critical evidence is essential to helping agencies resolve cases faster. You will design reliable backend systems, build agentic integration frameworks, and ensure our AI tools remain accurate, performant, and grounded in real-time data. WHAT YOU'LL OWN - Lead the architectural evolution and backend execution for Flock's investigative workflows. - Design and deploy high-performance orchestration backends that manage complex LLM tool-calling, function execution, and multi-step reasoning workflows. - Engineer high-throughput integration pipelines and secure connectors linking conversational interfaces directly to core data platform microservices. - Partner with Machine Learning and Data Engineering teams to bridge unstructured LLM outputs with structured internal APIs, maintaining strict schema validation and error handling. WHAT THIS ROLE IS NOT - This isn't a front-end or UI-focused engineering position, your work centers strictly on backend microservices, database access patterns, API design, and LLM orchestration. - This isn't a greenfield prototype lab with loose operational standards, you will build production-grade, low-latency infrastructure capable of handling high-volume data streams safely. WHAT YOU BRING - Demonstrated capability writing performant production code in Python or TypeScript to build scalable backend web services and microservices. - Deep database proficiency with PostgreSQL, OLAP databases, and Redis to optimize complex data access patterns and real-time retrieval without sacrificing latency. - Practical experience implementing agentic workflows, function calling, Model Context Protocol tools, and prompt engineering with major LLM APIs. - Strong background in cloud-native infrastructure, including hands-on experience with AWS, Kubernetes, Docker, and CI/CD pipelines. - Demonstrated capability taking ambiguous technical problems in zero-to-one product spaces and translating them into clear architectural roadmaps. - Experience with LLM evaluation frameworks, vector search, or infrastructure-as-code is a plus. COMPENSATION In this role, you'll receive a starting salary between $170,000 and $200,000 as well as Flock Stock Options. Base salary is determined by job-related experience, education/training, as well as market indicators. Your recruiter will discuss this in depth with you during our first chat. WHY FLOCK 💚 Every community deserves to be safe. Flock builds the technology that makes that real: last year we supported over 1 million criminal investigations and helped locate more than 10,000 missing people. We're 1,700 people building the impossible with over $1B in funding, and the expectations are high on purpose. If you want a role where the stakes are real and the pace matches, this is it. 📍Some problems get solved faster in the same room, so we prioritize candidates in Atlanta and Boston. Hub-based roles mean real in-person time with your coworkers. Remote roles exist, and when a posting is open to remote work, it says so. 🌟 the impossible takes every kind of mind. Flock is an equal opportunity employer, and we know the best solutions come from diverse perspectives, experiences, and skills working together with mutual respect. Everyone is welcome to apply. If you need assistance or an accommodation due to a disability, email recruiting@flocksafety.com; your information stays confidential and is used only to arrange the right accommodation for your interviews. 💰 On compensation: we pay fairly for the work. Base salary is determined by job-related experience, education, training, and market indicators. The range in this posting covers base salary only and doesn't include equity, sales bonus plans where applicable, or benefits. The range may be adjusted over time, and this posting may span more than one career level. 📣 One last thing: all legitimate communication from Flock comes from an email ending in @flocksafety.com http://flocksafety.com or noreply@ashbyhq.com. We never make offers through messaging apps or third parties, and we never request payment or sensitive personal information during hiring. If you encounter suspicious outreach about a Flock role, report it to recruiting@flocksafety.com.

Listed by Flock Safety for a position based in the United States. Employers on this board attest they are hiring domestically.

Engineering

63 days ago

Senior Software Engineer, Developer Platform

Offchain Labs · Remote

Pay

Not listed

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Remote

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Senior Software Engineer, Developer Platform RemoteEngineering /Full-Time /Remote APPLY FOR THIS JOB At Offchain, we aren’t just building products: we’re leading a movement. As pioneers in blockchain scalability and security, we're at the forefront of transforming how the world interacts with decentralized applications. We're laying the foundation that will define the next generation of digital commerce, governance, and human interaction. This involves tackling real-world challenges that come with scaling blockchain technology, without compromising on its core principles: decentralization, security and transparency. At the center of this vision is our people. Our team is made up of thinkers and doers that embrace new challenges and seek solutions that push existing boundaries. If you’re energized by solving unprecedented problems, and believe in the role that decentralized systems will play in creating a more equitable digital future, then we want to hear from you. Why Offchain? Offchain is setting the pace for the entire Ethereum ecosystem. We built the Arbitrum stack that powers Arbitrum One, the most widely adopted Ethereum scaling solution that exists today. Arbitrum’s ecosystem is undergoing tremendous growth with hundreds of projects and dApps on Arbitrum One today. Over 100 different teams have used Offchain technology to build their own Arbitrum chains. Major players in the space, Robinhood, BlackRock, Ethena Labs, Securitize, Aave, and Apechain are all using the Arbitrum stack. Arbitrum’s thriving ecosystem wouldn’t exist without our advanced technology stack. Arbitrum, Prysm, ZeroDev. These aren’t just product names. These are tools that are actively reshaping what's possible on Ethereum and advancing its core infrastructure. To top it all off? We’re backed by $124 million in funding. We’ve demonstrated consistent execution with billions in secured value, thousands of supported projects, and infrastructure processing millions of transactions seamlessly. The Role: 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. What you'll work on: 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) Who you are: 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 Perks: Remote-first global workforce + NY office 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 Attention Offchain Job Seekers: This role cannot be performed in California, or Colorado. Please be advised that there has been a rise in fraudulent recruiter activities, particularly within the Web3 space. If you would like to confirm whether someone is an Offchain employee or the legitimacy of an offer you received, please email jobs@offchainlabs.com At Offchain, we are committed to building a welcoming and supportive workplace for all employees, regardless of their background or identity. We strive to create an environment where everyone feels valued and has an equal opportunity to succeed and thrive. We encourage candidates from all walks of life to apply and join our team. We may use artificial intelligence (AI) tools to support parts of the hiring process, such as reviewing applications, analyzing resumes, or assessing responses and identifying potential inconsistencies or verification signals in application materials based on available information. These tools assist our recruitment team but do not replace human judgment. Final hiring decisions are ultimately made by humans. If you would like more information about how your data is processed, please contact us. APPLY FOR THIS JOB Offchain Home Page Jobs powered by

Listed by Offchain Labs for a position based in the United States. Employers on this board attest they are hiring domestically.

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