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Senior Blockchain Engineer

posted by: spj_bot

Senior Blockchain Engineer - Wallet Infrastructure & Integrations

Location: Remote - Location: US or EU (remote-first, office optional). Must be in the US, not Canada or in the European Union. France or Paris or as close as possible, always preferred.

Compensation: $160K - $240K

Join a stellar team of leaders and experts in blockchain technology, cryptography, and security to build the backbone of blockchain wallet infrastructure for the next financial era. We are hiring a Senior Blockchain Engineer to lead the design, development, and scaling of the components that connect our platform to every major blockchain network. This role is both hands-on and strategic, focusing on speed, resilience, and security under high-stakes financial workloads.

You will own the entire lifecycle of blockchain integrations, from low-level data indexing to high-level API design and smart contract development. You will improve our indexing and monitoring infrastructure, ensure secure integrations across diverse networks, and build tools that make our wallet platform faster and easier for partners to adopt.

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Infrastructure & DevOps Engineer

posted by: spj_bot

Infrastructure & DevOps Engineer - High-Performance Distributed Systems

Location: Remote - (Europe-friendly time zones preferred)

Compensation: $160K - $300K

We are reengineering blockchain infrastructure from first principles to make global digital markets as precise and dependable as physical systems. Built on a leading high-performance layer-1 network, our platform delivers deterministic execution, guaranteed inclusion, and low-latency performance. We are hiring an Infrastructure & DevOps Engineer to lead critical engineering efforts that drive the performance and scalability of our next-generation distributed systems.

You will join a highly proficient team of core engineers, focusing on Rust systems programming, infrastructure architecture (Kubernetes), and operational scripting. Your work will span the full stack, from bare metal to application interfaces, and will directly support our platform which connects the L1 network with advanced L2 extensions. You will drive high-quality, frequent code shipments, engage in deep architectural discussions, and apply a coherent system design philosophy to advance the industry.

Key Responsibilities:

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2x Quantitative Researcher/Engineer

posted by: spj_bot

Quantitative Trading & Market Microstructure Specialist - High-Performance DEX

Location: Remote - Global (Preference for candidates based in: Lisbon, Portugal / UAE / Switzerland / Singapore / Hong Kong / Brazil / USA / UK / Spain / Canada / France / Germany / Greece)

Compensation: $180K - $220K

We are building a high-performance blockchain operating system that fundamentally redefines what's possible on Ethereum by prioritizing unparalleled throughput, decentralization, and security. We are now expanding the team for O2, a new, early-stage project: a next-generation decentralized exchange (DEX) running on our modular execution layer. Designed as a Central Limit Order Book (CLOB), our goal is to build the fastest DEX ever constructed, leveraging parallel execution to unlock high-frequency trading efficiency fully on-chain.

You will play a foundational role, leveraging your expertise in market making and quantitative trading to model, simulate, and optimize the market behavior of our core CLOB protocol. This is a highly hands-on role where you will design and test trading strategy logic, build simulation frameworks, and collaborate with engineering and research to inform critical protocol-level design decisions.

Key Responsibilities:

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Staff Developer Tooling Engineer

posted by: spj_bot

Senior Software Engineer - Developer Tools & SDKs

Location: Remote - US & Americas

Compensation: $ Competitive

We are a fast-growing software company dedicated to supporting and developing an EVM-compatible, open-source, proof-of-stake platform. This public network is engineered for enterprise and Web3 applications, prioritizing speed, security, stability, and sustainability, and is governed by industry-leading organizations. We are seeking an experienced Software Engineer to lead the development of world-class developer tools and SDKs.

You will take the lead on crafting seamless developer experiences, owning the design, build, and maintenance of our open-source SDKs and related tooling. This role requires technical leadership, hands-on coding across multiple languages, and a strong focus on developer empathy. You will work cross-functionally to ensure our tools are intuitive, robust, and aligned with real-world developer needs.

What You'll Be Doing:

Job Skills

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Senior Rust Engineer

posted by: spj_bot

Senior Rust Engineer - On-Chain Security Infrastructure

Location: Remote - Europe

Compensation: $165K - $200K

We are building a Credible Layer—a step-level improvement for on-chain security designed to safeguard the crypto industry and restore credibility after billions were lost to hacks. We are creating an on-chain protocol and off-chain infrastructure that enables protocols to enforce security rules for every transaction. Backed by world-class investors, we are seeking a Senior Rust Engineer to work on bleeding-edge infrastructure at the heart of our mission.

You will play a crucial role in shipping cutting-edge features that extend the EVM (Ethereum Virtual Machine) to enable security rules to be checked after every state transition. This is a high-impact, deeply technical role requiring expertise in performance optimization and low-level systems programming within a collaborative, fast-iteration environment.

Key Responsibilities:

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Senior Engineer

posted by: spj_bot

Senior Blockchain Engineer - Encrypted Infrastructure

Location: New York (Office)

Compensation: $150K - $200K

We are a small, fast-moving software company building an encrypted blockchain that combines deep expertise in cryptography, compilers, and distributed systems. Backed by top-tier investors including a16z and Polychain, we are financially secure with several years of runway. We are seeking a Senior Engineer to join our elite team in New York City and work on cutting-edge, challenging engineering problems.

You will join a focused team of industry veterans and standout talent, taking on significant decision-making responsibilities as you design and implement core components of our encrypted platform. This role requires the commitment to bring hard, complex tasks to completion independently, contributing to infrastructure that is fundamentally redefining secure data handling on-chain.

Key Responsibilities:

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Principal Software Engineer - Smart Contracts Team

posted by: spj_bot

Senior/Lead EVM Engineer - Distributed Ledger Optimization

Location: Remote - US

Compensation: Competitive

We are a fast-growing software company committed to supporting, developing, and servicing an open source, proof-of-stake, EVM-compatible platform. This decentralized network is built for enterprise and Web3 applications, prioritizing speed, security, and stability. We are seeking a seasoned EVM Engineer to join our Smart Contracts team and drive the performance and optimization of our core native services (Java) and Web3 services (JS/TS).

You will be a high-impact contributor, spending approximately 80% of your time designing, coding, and testing core components. Your focus will be on the execution layer, specifically transforming network node states, processing transaction bytes, and exposing critical network data. This includes innovating on compiler and optimization algorithms, enhancing EVM features, and contributing to open-source code clients.

Key Responsibilities:

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Founding Engineer

posted by: spj_bot

Founding Engineer - High-Growth DeFi Mobile Trading App

Location: Remote - US Remote (Must be able to travel to NYC 2 weeks at a time, every 1-2 months for in person collaboration)

Compensation: $200K - $300K

We are a rapidly growing mobile app—the “Robinhood for DeFi”—that allows anyone to trade cryptocurrencies on-chain through a user-friendly interface. Since our launch, we have attracted 1.5+ million users. We are a lean, mission-driven team dedicated to making decentralized finance open and accessible to the world. We are looking for a Founding Engineer to assume a hands-on role in designing, building, and maintaining the production features that power our platform.

You will have end-to-end feature ownership across both our mobile and backend systems, shaping the core user experience for millions of users. This role demands rapid iteration, a security-first mindset, and the ability to design robust, scalable features. You will be a decision-maker and implementer, directly influencing the technical direction of the company.

What You'll Be Doing:

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Technical Programme Manager

posted by: spj_bot

Technical Program Manager (TPM) - On-Chain Economic Security

Location: Remote - Remote - USA (ideally NYC based) open to all of USA but not PST timezones

Compeensation: $120K - $150K

We are the pioneer in automated, on-chain economic security systems, trusted by key protocols like Aave, GMX, and dYdX to secure billions of dollars in assets globally. Our platform optimizes risk management and capital efficiency using cutting-edge EVM simulations. We are seeking an accomplished Technical Program Manager (TPM) to lead strategic initiatives and drive operational excellence in decentralized finance innovation.

Reporting to a senior executive, you will be responsible for overseeing the development and deployment of critical data infrastructure solutions (Oracles), ensuring they meet the highest standards of reliability and accuracy. This role requires exceptional organizational skills, technical fluency in blockchain, and the ability to manage complex, cross-functional programs from definition through delivery.

Key Responsibilities:

Job Skills

health benefit cross functional team leadership real time system reliability data feed equity risk management security policy cross functional personalized process improvement project management managing functional programs organizational skill engineering product milestones data service stakeholder communication data infrastructure data integrity data services translate program manager managing expectations nice problem solve work environment operational excellence data feeds finance strategic planning collaborate reliable managed securely industry standards collaboration innovation blockchain economic professional development automated program management managing stakeholder ethereum performance optimization contingency plan quality assurance GMX manage risks collaborative refinement project scope applicable data finance projects remote remote project plans planning manage security system track
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Senior Protocol Engineer

posted by: spj_bot

Senior/Lead Smart Contract Engineer - Web3 User Acquisition Platform

Location: Remote - US (EST Preferred)

Compensation: $150K - $200K

We are a leading web3 user acquisition platform that has powered onboarding for over 500 protocols since 2021, facilitating over 500 million transactions and serving over 3 million users on 40+ chains. Our platform is infrastructure for major players like Coinbase, Uniswap, and Solana. Backed by $21M in total funding and with a successful native token launched in 2024, we are seeking a highly experienced Senior/Lead Smart Contract Engineer to take ownership of our protocol architecture and security.

You will lead the design and implementation of our smart contract infrastructure for both core and new initiatives. This is a critical, high-ownership role where you will drive protocol architecture, security, and optimization across multiple chains supporting millions of users. Your expertise will be essential in maintaining the integrity and gas efficiency of our high-volume systems.

What You'll Be Doing:

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