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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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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

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Senior iOS Engineer

posted by: spj_bot

Senior iOS Engineer - Next-Generation Fintech

Loccation: Remote - Fully remote across Europe - they can do B2B or hire through EoR.

Compensation: $90K - $105K

We are seeking a Senior iOS Engineer obsessed with delivering the best possible product experience as we revolutionize the FinTech industry and create a new paradigm. In this fast-paced environment, you will be a pillar of our engineering team, utilizing your speed and elegance to translate pixel-perfect, responsive designs into high-quality applications.

You will work directly with our product and design teams, owning the development and deployment of beautiful, high-performance user experiences. Your ability to deliver elegant solutions across the entire mobile stack, from core feature development to optimization and testing, will be critical to our success.

What You'll Be Working On:

Job Skills

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Senior Infrastructure Engineer

posted by: spj_bot

Senior Infrastructure Engineer - Blockchain Wallet Backbone

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

Compensation: $180K - $300K

Join a stellar team of leaders and experts in blockchain technology, cryptography, and security. We are building the backbone of blockchain wallet infrastructure for the next financial era. We are seeking a Senior Infrastructure Engineer to design, operate, and scale systems at the intersection of blockchain, cybersecurity, and distributed infrastructure, preparing us to meet the demands of a trillion-dollar industry.

This role goes beyond maintenance—you will be an architect, automator, and security expert. You will embed best-in-class DevOps and SRE practices into our workflows, ensuring our services are highly reliable, secure, and cost-efficient. You will collaborate across engineering, product, and security to translate complex requirements into scalable infrastructure.

Key Responsibilities:

Job Skills

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Senior Backend Engineer x2 (Golang)

posted by: spj_bot

Senior/Lead Backend Engineer - FinTech & Crypto Innovation

Location: Remote - Fully remote across Europe - they can do B2B or hire through EoR.

Compensation: $120K - $140K

We are seeking a Senior/Lead Backend Engineer to help us revolutionize the FinTech and crypto industry. This is a fast-paced environment where you will solve complex banking and crypto problems, translating them into elegant, efficient, and resilient architectural solutions. Your ability to deliver high-quality code makes you a pillar of our engineering team.

You will work directly with the product team, owning the design, development, and deployment of mission-critical services that power our next-generation financial platform. Your focus will be on building highly scalable and resilient backend systems that handle core banking functions, blockchain integrations, and serve data to our applications.

What You'll Be Working On:

Job Skills

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Senior Backend Engineer (Kotlin - Crypto)

posted by: spj_bot

Senior/Lead Backend Engineer - FinTech & Crypto Innovation

Location: Remote - Fully remote across Europe - they can do B2B or hire through EoR.

Compensation: $120K - $140K

We are looking for a Senior/Lead Backend Engineer obsessed with good architecture, efficiency, and resilience to help us revolutionize the FinTech and crypto industry. This role is for a pillar of our engineering team who thrives in a fast-paced environment, solving complex banking and crypto problems with speed and elegant, resilient solutions.

You will work directly with the product team, owning the design, development, and deployment of mission-critical services that power our next-generation financial platform. Your focus will be on building scalable, robust backend systems that handle core banking functions, blockchain integrations, and serve data to our mobile and web applications.

What You'll Be Working On:

Job Skills

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VP of Business Development, LATAM

posted by: spj_bot

VP of Business Development, LATAM - Blockchain Wallet Infrastructure

Location: Remote - Location: Brazil, Argentina, Mexico, or Miami (remote-first, office optional).

Compensation: $80K - $140K

We are building the backbone of blockchain wallet infrastructure for the next financial era, leveraging deep expertise in cryptography, infrastructure, and security. We are seeking a VP of Business Development to spearhead our regional expansion and establish us as the trusted partner for financial institutions and fintechs across Latin America (LATAM). This high-impact role blends strategic leadership with hands-on execution.

Reporting to the Head of Americas, you will own the go-to-market strategy in LATAM, driving significant revenue growth and Annual Recurring Revenue (ARR). You will act as the senior representative in key markets, responsible for sourcing, qualifying, and closing high-value enterprise deals. You will need resilience, strong technical credibility, and an ability to navigate complex sales cycles with banks, enterprises, and regulators.

Key Responsibilities:

Job Skills

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Trust & Compliance Officer

posted by: spj_bot

Trust & Compliance Officer - Blockchain Wallet 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 - $165K

Join a stellar team of leaders and experts in blockchain technology, cryptography, infrastructure, and security to build the backbone of blockchain wallet infrastructure for the next financial era. We are hiring a Trust & Compliance Officer to manage our security frameworks and global regulatory requirements, ensuring we meet the highest standards of trust, resilience, and compliance across various financial and digital asset regulations worldwide.

Reporting to the CISO, this role demands both precision and adaptability. You will be the central figure for all trust, security, and compliance matters, designing and enforcing compliance programs, leading audits, and acting as the main point of contact for clients and regulators. You will also integrate compliance requirements into product architecture and support clients in meeting their own regulatory obligations.

Responsibilities:

Job Skills

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Senior Core Systems Engineer

posted by: spj_bot

Senior Core Systems Engineer - Secure 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: $180K - $260K

Join a stellar team of leaders and experts in blockchain technology, cryptography, infrastructure, and security to build the backbone of blockchain wallet infrastructure for the next financial era. We are hiring a Senior Core Systems Engineer to design, build, and scale the low-level systems at the heart of our platform, where performance, security, and correctness are non-negotiable. This is a high-impact role focused on turning advanced cryptography into fast, resilient, and trusted production infrastructure.

As a Core Systems Engineer, you will work deep in the stack, designing and scaling reliable distributed services and integrating them with cloud, hardware, and blockchain environments. You will collaborate across product, research, and security to implement advanced cryptographic and security protocols using low-level systems languages.

Responsibilities:

Job Skills

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