Skip to main content

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
View the job post & apply

Platform Engineer

posted by: spj_bot

Security DevOps Engineer - Crypto Social Infrastructure

Location: London, New York City (Office)

Compensation: $250K - $300K

We are a high-growth software development company of elite builders and proud contributors to the largest crypto social network globally, a platform that has generated over $600 million in revenue since March 2024. We are seeking a Security DevOps Engineer to join our team, focusing on building secure, scalable infrastructure for decentralized applications and redefining what’s possible in social finance.

You will play a critical, hands-on role in hardening our development and production environments. This role involves integrating security throughout our CI/CD pipeline, automating security scanning and monitoring, and working directly with development teams to ensure a strong overall security posture across our cloud and blockchain infrastructure.

What You'll Do:

Job Skills

View the job post & apply

Marketing Lead

posted by: spj_bot

Marketing Team Lead - Content & PLG (Blockchain Trust Layer)

Location: New York City, Los Angeles, London, San Francisco (Hybrid)

Compensation: $150K - $200K

We are a venture-backed startup, founded by experts in blockchain and cybersecurity, building a global trust layer for the internet's media content. Our mission is to secure proof of origin for media, tackling the growing threat of synthetic media and disinformation. We are seeking a visionary Marketing Team Lead to establish us as a technology leader in the blockchain, digital provenance, and authenticity space, and to help us rapidly scale.

You will own the overall Go-To-Market (GTM) strategy and execution, responsible for refining our brand, positioning our platform, and building a high-performing team. This is a hands-on, high-impact role for an entrepreneurial leader who can translate a complex technical solution into a category-defining market narrative.

Key Responsibilities:

Job Skills

View the job post & apply

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:

Job Skills

View the job post & apply

Head of Growth

posted by: spj_bot

Head of Growth - Institutional On-Chain Liquidity Layer

Location: Remote - US - Would consider South America or Canada + Preference for onsite/hybrid in LA

Compensation: $200K - $225K

We are a venture-backed on-chain financial infrastructure company building the liquidity layer for the tokenized economy, backed by leading investors. Our flagship protocol, deployed across multiple chains, connects tokenized real-world assets (RWAs) and high-quality stablecoins to enable 24/7, real-time, compliant capital movement for institutions. Live in production with partners including major global asset managers, we are seeking our first dedicated Head of Growth to own institutional and DeFi adoption and turn product-market fit into repeatable revenue.

Reporting directly to the Founder/CEO, you will be the core GTM leader, responsible for building the revenue engine across enterprise sales, strategic partnerships, and ecosystem development globally. This is a highly hands-on role where you will define the strategy, own the pipeline and forecast, design scalable playbooks, and close lighthouse deals across exchanges, stablecoin issuers, asset managers, and corporate treasuries.

Key Responsibilities:

Job Skills

View the job post & apply

Full Stack Engineer

posted by: spj_bot

Backend Software Engineer - Payments & Digital Money

Location: New York (Hybrid)

Compensation: $150K - $180K

We are a lean and mighty team of passionate builders, funded by top investors in fintech and crypto, focused on empowering the next generation of money and financial products globally. We are seeking a Backend Software Engineer to join us at the cutting edge intersection of real-world payments and digital money, where you will deliver massive impact within a small, quickly growing company.

You will be a critical part of defining our technical and product roadmap, contributing directly to our core backend infrastructure. This role involves rapid feature shipping, large-scale system scaling, and integrating with diverse third-party services and smart contracts across multiple chains. You will have the freedom to explore ideas, impact the company's vision, and grow into the role that best aligns with your personal goals.

What You'll Do:

Job Skills

View the job post & apply

Compliance Operations Coordinator

posted by: spj_bot

Compliance Operations Coordinator - Cross-Border Payments

Location: Remote - Based in EST timezone

Compensation: $50K - $80K

We are building a platform that enables cross-border transactions that are drastically faster, cheaper, and simpler, moving toward a world of frictionless global commerce. We are seeking a Compliance Operations Coordinator to join us on the front lines, taking ownership of the day-to-day execution of critical bank and client compliance requests. This role is about responsiveness, precision, and extreme accountability in a high-growth, globally distributed environment.

You will serve as the essential link between our clients and banking partners, ensuring every compliance requirement is handled quickly and flawlessly to maintain trust and operational integrity. You will manage the compliance workflow end-to-end, acting with urgency to support global business scale.

What you'll be doing:

Job Skills

View the job post & apply

Commercial Counsel

posted by: spj_bot

Commercial Counsel - 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: $95K - $140K

Join a stellar team of leaders and experts building the backbone of blockchain wallet infrastructure for the next financial era. We are hiring a Commercial Counsel to own and drive all contract-related legal matters for our platform. Reporting directly to the CEO, you will play a hands-on, critical role in supporting our international growth while ensuring compliance within the fintech and crypto regulatory landscape.

This is a high-autonomy role where you will be directly responsible for accelerating deal flow while protecting the company's interests. You will act as a key partner to our Sales, Product, and Operations teams, responsible for building the scalable legal foundation that supports our expansion across the globe.

Responsibilities:

Job Skills

View the job post & apply

UX Designer

posted by: spj_bot

UX Designer - Web3 Live Sports Gaming

Location: Remote - Preference for UK as thats where the majority of the team are based, 2nd preference is EU - fully remote.

Compensation: $75K - $120K

We are a rapidly growing, stealth-mode team building the ultimate digital playground for the world's most passionate football fans. Our mission is to make the match-day experience more engaging, social, and fun by blending speed, robust data, and vibrant design. We are looking for a highly creative and user-focused UX Designer to define the look, feel, and function of our web and mobile applications, translating complex live sports data into intuitive interfaces.

You will be instrumental in leading the UX strategy for our core Web platform, where the majority of live fan interaction occurs. Your focus will be on designing interfaces that are intuitive, glanceable, and performant even during the most chaotic moments of a live game. You will own the design system, drive optimization through testing, and collaborate closely with engineering to ensure pixel-perfect implementation.

Key Responsibilities:

Job Skills

web platform professional user testing product managers prototype equity brand team build security policy design system pixel perfect scalable design optimization storytelling touchpoints communication web design funnels visual dashboards community interaction manage design CSS data visualization translate feature development look feel rapid development experience design web application css framework prototypes interactive collaborate polls responsive web design social designing interfaces managed securely collaboration analytics heatmaps prototyping performance metric creative figma cognitive load product design gamification translating bootstrap statistics user flow browser compatibility collaborative graphs mobile applications interaction applicable data design specification front end e wireframing b polished
View the job post & apply

Staff Software Engineer - Execution Team

posted by: spj_bot

Staff Software Engineer - Distributed Ledger Execution

Location: Remote - US

Compensation: $ Competitive

We are a fast-growing software company committed to supporting, developing, and servicing an open source, proof-of-stake platform. This EVM-compatible Distributed Ledger Technology (DLT) is specifically built to meet the needs of enterprise and Web3 applications, prioritizing speed, security, stability, and sustainability. We are seeking a Staff Software Engineer to be a technical leader on our core Execution Team.

You will be responsible for delivering software services, business logic, and APIs within the core Consensus Node—the heart of our DLT. This is a high-impact role requiring deep passion for solving technical challenges involving distributed execution, state management, transaction lifecycles, and economic systems (fees, rewards). You will drive technical direction, optimize performance, and mentor engineers within a highly collaborative, open-source environment.

Key Responsibilities:

Job Skills

View the job post & apply
Subscribe to equity

SPJ is not just a platform; it's a transformative force in the maritime sector. We reinvent job discovery and collaboration, leveraging cutting-edge AI to create a space where careers thrive and innovations set sail.

Featured Posts