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

Join 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. Our client is seeking a Principal Software Engineer to lead the design, development, and scaling of their core backend systems. This is a high-impact, leadership role focused on making key architectural decisions and ensuring their 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.

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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.

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Commercial Counsel - Blockchain Infrastructure

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

Remote | Full-time

Compensation: $80K - $140K

Our client is an elite team of leaders and experts in blockchain technology, cryptography, infrastructure, and security. They are currently developing the foundational wallet infrastructure for the next financial era.

The organization is seeking a Commercial Counsel to own and drive all contract-related legal matters. Reporting directly to the CEO, this individual will work closely with Sales, Product, and Operations to support international growth. This is a hands-on role requiring a practitioner who can draft, review, and negotiate contracts and NDAs with clients, partners, and vendors. The successful candidate will build scalable templates and processes while ensuring compliance within the evolving fintech and blockchain regulatory landscape. The primary goal is to accelerate deal closures while protecting the company’s interests and balancing legal risk with business objectives.

Key Responsibilities

Senior Infrastructure Engineer - Blockchain Wallet Backbone

Location: Remote - United States

Compensation: $180K - $300K

Join a stellar team of leaders and experts in blockchain technology, cryptography, and security. Our client is seeking a Senior Infrastructure Engineer to design, operate, and scale systems at the intersection of blockchain, cybersecurity, and distributed infrastructure, preparing them 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 their workflows, ensuring their 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:

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:

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:

Senior Software Engineer - Cross-Chain Intent-Driven DEX

Headquarters: Gibraltar

Remote | Full-time

Compensation:  $250k - $280k total comp ($160K - $180K base pay + tokens 2y vesting, 1y cliff + 10% perf bonus)

Our client is a pioneering technology firm developing advanced solutions to enable seamless cross-chain interactions within an automated, intent-driven world. By connecting AI, services, and financial applications, the organization designs intent-driven liquidity layers where smart contracts, AI agents, and blockchain networks synchronize in real-time. With deep expertise in AI, cryptography, and decentralized finance (DeFi), the team is redefining how intelligent agents interact across global networks.

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.

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Strategic Account Manager - Blockchain Wallet Infrastructure

Location: Remote - US based, not Canada. EST time 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 seeking a Strategic Account Manager to own post-close success and growth across North & South America, ensuring client retention and deepening engagement with institutions, fintechs, and crypto-native firms. This is a critical commercial and technical role.

Reporting to the Head of Americas, you will act as a trusted partner to a portfolio of active accounts, guiding them through onboarding, adoption, and renewal. You will be responsible for navigating complex technical environments that combine APIs, cloud deployments, legacy systems, and regulatory requirements, driving upsells and securing long-term partnerships.

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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.

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