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Staff Software Engineer - Smart Contracts Team

posted by: spj_bot

🔗 Senior EVM & Web3 Engineer - Enterprise Distributed Ledger

Location: Remote - US - Open to Europe if happy to overlap with EST

Compensation: Competitive

We are hiring on behalf of our client who is a fast-growing software company dedicated to supporting and servicing an open source, proof-of-stake platform that is EVM-compatible. This network is specifically built to meet the needs of enterprise and Web3 applications, prioritizing speed, security, and stability. They are seeking a seasoned Smart Contract Engineer to join their team, focusing on developing both the core Java services and the Web3 APIs (JS/TS) that process transactions across their network.

You will be a high-impact, hands-on programmer, spending approximately 80% of your time designing, coding, and testing. Your primary focus will be enhancing EVM compatibility and improving the developer experience (DevEx) for users migrating from other EVM chains. This includes both low-level transaction processing in Java and high-level API development for public consumption.

Key Responsibilities:

Job Skills

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Senior Frontend Engineer

posted by: spj_bot

Senior Frontend Engineer - Wallets-as-a-Service Platform

Location: Remote - Location: US or EU (remote-first, office optional). Ideally based in EST or as close to France or Paris is always the major preference.

Compensation: $160K - $220K

We are hiring an engineer to drive the user-facing side of our platform, building the backbone of blockchain wallet infrastructure for the next financial era. This is a high-impact role requiring deep expertise in modern frameworks, cross-platform development, and strong UX instincts. We need a rigorous builder who can translate complex requirements into fast, intuitive, and trustworthy financial tools.

This is not a narrow frontend role; you will move fluidly between polished user experiences and the developer tools that make them possible. You will own features end-to-end, delivering business-grade software that makes complex financial workflows effortless for developers, administrators, and end-users. Speed and security must be balanced with clean architecture and reliable performance.

Responsibilities:

Job Skills

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Senior Data Scientist

posted by: spj_bot

Senior Data Scientist - Economic Risk & DeFi Simulation

Location: Remote - Preference for NYC - Will accept Remote USA & Europe to work EST hours

Compensation: $130K - $150K

We are the first automated, on-chain economic security system, trusted by leading protocols managing billions of dollars (including Aave, GMX, dYdX, and others). We provide actionable insights by analyzing protocol mechanics and scenario implications using world-class custom EVM simulations. We are seeking a proactive and results-driven Senior Data Scientist to advance our modeling capabilities and deliver powerful data insights across decentralized finance.

Reporting to the Head of Economic Risk & Strategy, you will play a critical role in strategic research, simulation, and risk analysis for market-leading protocols. This involves deep diving into complex crypto systems, modeling actor behavior, and translating intricate simulation results into intuitive, game-changing analytics for our institutional customers.

Responsibilities:

Job Skills

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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.

Key Responsibilities:

Job Skills

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Sales & Marketing Manager (Web3 / DePIN)

posted by: spj_bot

Sales & Marketing Manager - Decentralized Physical Infrastructure (DePIN)

Location: Remote - Fully remote - Any timezone

Compensation: $42K - $60K

We are a venture-backed startup and a leading online distributor and holistic service provider in the rapidly growing Decentralized Physical Infrastructure (DePIN) ecosystem. Our core business combines an online store with a comprehensive suite of services, supporting innovative DePIN and Web3 projects from concept to final product distribution. We are seeking a Sales & Marketing Manager to own both client acquisition and campaign execution.

You will play a key role in driving business development for our marketing and consulting services, managing B2B relationships with partners, and executing high-impact campaigns across all channels. This role requires an entrepreneurial, hands-on professional who can operate independently, strategically advise clients, and ensure their Web3 ideas achieve real-world adoption.

Key Responsibilities:

Job Skills

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Revenue Operations Manager

posted by: spj_bot

Revenue Operations Manager - Blockchain Infrastructure

Location: Remote - Must be in the European Union (remote-first, office optional). France/ Paris or as close as possible, is always preferred.

Compensation: $80K - $120K

Join a stellar team of leaders and experts building the backbone of blockchain wallet infrastructure for the next financial era. We are hiring a Revenue Operations Manager to act as the essential air-support system for our commercial teams, ensuring they have the reliable, well-structured data needed to accelerate deals and run effective campaigns. You will own and optimize all CRM data, lead generation workflows, and sales/marketing automation.

Reporting to the Head of Marketing, you will own the entire sales and marketing tech stack, providing the leverage necessary for high-growth and efficiency. Your focus is maximizing revenue by ensuring data cleanliness, automating workflows, and providing actionable insights, allowing sales and marketing to focus on conversations and strategy rather than manual tasks.

Responsibilities:

Job Skills

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Recruitment Administrator & Sourcing Specialist

posted by: spj_bot

We're looking for an organised, sharp Recruitment Administrator who excels at sourcing!

This is not a full-cycle (360) recruiter role. Your focus will be on two key areas: keeping our hiring process smooth and finding great passive candidates.

What You'll Do:

  • Strategic Sourcing: Utilise expert Boolean search, LinkedIn Recruiter, and creative channels to identify and engage passive candidates across niche tech roles.
  • Pipeline Building: Build and nurture deep, diverse talent pools for current and future openings.
  • Candidate Hand-off & Conversion: Conduct screening, confirm qualifications, and drive candidates to formally apply using a unique, provided tracking link. Following application submission, you are responsible for immediately logging the candidate's name in the designated tracker before officially handing off the warm lead to the Recruiter.
  • Market Intelligence: Track competitor and market activity to inform our overall talent acquisition strategy.
  • Automations: Creating automations through our CRM/Tracking Tool.

Requirements

Job Skills

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Principal Solutions Engineer

posted by: spj_bot

Principal Solutions Engineer - Blockchain Financial Infrastructure

Location: Remote - United States (remote-first, office optional). EST time preferred

Compensation: $160K - $220K

Join a stellar team of leaders and experts building the backbone of blockchain wallet infrastructure for the next financial era. We are hiring a Principal Solutions Engineer to help institutions, fintechs, and enterprises across the Americas adopt our platform with confidence and ease. This is a highly hands-on and client-facing role, serving as the trusted technical advisor who bridges complex enterprise needs with our cutting-edge technology.

You will be responsible for the end-to-end technical success of our customers, guiding them from initial design through deployment and ongoing support. You will combine deep technical expertise with strong communication skills to design secure, scalable integration pathways that connect legacy systems with modern blockchain architecture.

Responsibilities:

Job Skills

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Principal Software Engineer - EU

posted by: spj_bot

Principal Software Engineer - Blockchain Wallet Infrastructure

Location: Remote - Location: European Union (remote-first, office optional) Paris/ France is always preferred. Or as close as possible.

Compensation: $145K - $240K

We are a stellar team of leaders and experts building the backbone of blockchain wallet infrastructure for the next financial era, specializing in cryptography, security, and distributed systems. We are seeking a Principal Software Engineer to lead the design, development, and scaling of our core backend systems. This is a high-impact, leadership role focused on making key architectural decisions and ensuring our platform is fast, resilient, and secure under the high-stakes demands of financial workflows.

You will own mission-critical projects end-to-end, acting as a technical leader who drives engineering standards and the long-term vision. This role involves deep technical execution alongside strategic collaboration with product, security, and executive leadership to align technical roadmap with business goals.

Responsibilities:

Job Skills

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Principal Security Engineer

posted by: spj_bot

Principal Security Engineer - Blockchain Wallet Infrastructure

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: $220K - $300K

Join a stellar team of leaders and experts in blockchain technology, cryptography, and infrastructure to build the backbone of blockchain wallet infrastructure for the next financial era. We are hiring a Principal Security Engineer to lead security design and development across our entire platform. Reporting directly to the CISO, you will set the strategy to protect our high-stakes financial systems, fix vulnerabilities, and keep client wallets safe.

This is a strategic and highly technical role spanning the full security lifecycle. You will make security part of every layer of the stack, from architecture design to incident response. Beyond defense, you will champion secure development practices, mentor engineers, and represent the company's security posture to clients and the wider community.

Responsibilities:

Job Skills

incident response security design leadership mentorship security strategy equity security security policy systems languages secure coding risks manage threat modeling threat management penetration testing cloud security communication defense in depth web protocols architecture design reviews design security control security engineering safe security testing rust integrating european union stock options design architecture application security reliable industry standards best practices managed securely blockchain vulnerability management supply chain automated systems knowledge office space security architecture software development layer secure software standards iso cryptography infrastructure typescript applicable data security engineer coordinate enforcement secure networking stakes financial system audits
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