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:

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:

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:

Backend Data Engineer - Real-Time Crypto Analytics Infrastructure

Location: London, New York City (Office)

Compensation: $250K - $300K

We are a high-growth software development company of elite builders, redefining what's possible and proud contributors to the largest crypto social network globally. We are seeking a Backend Engineer focused on data to design and scale our real-time data infrastructure at the forefront of crypto and social finance. This role is for a self-starter who thrives on solving complex, high-throughput data challenges in a fast-paced environment.

You will own the end-to-end architecture and operation of our real-time analytics pipeline, ensuring low-latency insights are always available to internal and external stakeholders. This role requires interacting directly with high-throughput blockchain infrastructure and solving significant challenges related to data consistency, scale, and performance.

What You'll Do:

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:

Welcome to PXGEO

PXGEO is an innovative marine geophysical service provider combining the strengths of ocean bottom and towed streamer seismic data acquisition techniques to deliver seamless subsurface imaging for a sustainable future.

What’s the role?

This position plays a pivotal role in the day to accounting and controlling of projects, as well as the associated accounts payable, capital expenditures, and accounts receivable transactions. This role requires a detail-oriented partner to assist the project controlling team in ensuring accurate and timely accounting, financial reporting and compliance with accounting standards. Key deliverables include:

About us: Soar is a global fintech startup that specializes in financing and investment. Currently headquartered in Saudi Arabia, Soar is growing throughout the region with a mission to help people achieve their financial goals with innovative financial and property investment solutions and tools through its multi-purpose platform, designed to offer a simple and seamless user experience.

Role Summary:

We are seeking an experienced and results-driven head of collections to lead our debt recovery and collection’s function. The ideal candidate will play a critical role in minimizing financial risk, improving cash flow, and ensuring compliance with regulatory standards in the Kingdom of Saudi Arabia. Working in a dynamic fintech startup environment, the head of collections will develop and implement strategies, manage a team, and collaborate closely with internal departments to optimize recovery performance while maintaining a customer-centric approach.

Key responsibilities:

1. Develop and execute collection strategies for early, mid, and late-stage delinquent mortgage accounts.

2. Monitor and manage daily operations of the collections team, including setting targets, coaching, and performance reviews.

3. Analyze collection performance data and provide actionable insights to senior leadership and credit function.

Smart Contract Developer - Institutional DeFi Protocol

Location: Remote - US only (preference for onsite/hybrid in LA)

Compensation: $160K - $180K

We are an on-chain financial infrastructure company backed by leading VCs, committed to upgrading financial markets through 24/7 instant settlement. Our first product is an institutional-grade smart contract protocol that facilitates interoperability and liquidity across tokenized financial assets and stablecoins. We are seeking a Smart Contract Developer to join our core engineering team and build the foundational infrastructure that bridges traditional finance (TradFi) and decentralized finance (DeFi).

This is a high-impact, hands-on role where you will design, develop, and deploy highly secure, robust smart contracts for our core protocol. You will architect on-chain logic, optimize gas efficiency, and ensure best-in-class security practices to enable institutional-grade DeFi operations. You will work within a small, senior team, collaborating closely with security auditors, product, and business stakeholders.

Key Responsibilities:

Solana-Focused Frontend Engineer - Crypto Social Finance

Location: Remote - preference is NYC/LDN but open to remote candidates if they're an exceptional fit.

Compensation: $250K - $300K

We are a high-growth software development company of elite builders, redefining what's possible and proud contributors to the largest crypto social network globally. We are seeking a Solana-Focused Frontend Engineer to play a critical role in building and scaling cutting-edge platforms at the forefront of crypto and social finance, delivering high-performance, user-centric applications across web and mobile.

You will be instrumental in bridging the gap between our smart contract infrastructure and the user interface, working in an environment where speed, ownership, and innovation are paramount. You will own the front-end implementation of new on-chain features, optimize performance, and ensure a seamless user experience for real-time interactions.

Key Responsibilities:

Senior Protocol Engineer - Stablecoin Platform

Location: Remote - US based (Would consider South America/Canada/Europe if can overlap with EST timezones)

Compensation: $170K - $200K

We are a pioneering stablecoin platform providing developers with a superior digital-dollar building block ($\$M$) to create custom, compliant stablecoins in minutes. We are seeking an experienced Senior Protocol Engineer to architect and develop audit-ready smart contracts, helping businesses monetize their digital dollar use cases while maintaining control over their money tech stack.

You will be responsible for the security, performance, and development of our core blockchain protocols. This role requires technical mastery in smart contract design, a commitment to audit readiness, and strong collaboration skills as you work across functional teams (designers, product managers, and developers) to enhance and extend our existing stablecoin products.

Key Responsibilities: