At Excelya, we pride ourselves on being a leading mid-size Contract Research Organization (CRO) with over 900 passionate professionals dedicated to improving healthcare. Our core values of Audacity, Care, and Energy guide our actions and decisions as we work collaboratively to drive innovation in clinical research.
Main Responsibilities:
ADAPTIT S.A. is a specialized ICT Group delivering high-quality services, innovative solutions, and premium support to organizations across telecom, finance, utilities, transport, retail, and enterprise sectors. Guided by our vision to be the trusted partner for seamless connectivity and cybersecurity, we stay at the forefront of technological advancements in Greece and beyond. Our mission is to create lasting impact through strong partnerships, deep expertise, and resilient, future-ready solutions. Since 2012, we have proudly showcased our work at MWC and remain active members of international business chambers.
Our culture is grounded in trust, ownership, and collaboration, where open communication, shared purpose, and continuous growth define how we work. As a team, we stay agile and customer-focused, committed to delivering innovative solutions that create value for our people and clients alike.
As a Junior RF Systems Engineer you will support a variety of tasks including equipment testing, rack-based RF solution integration, site surveys, field installations, and measurements. You’ll work alongside senior engineers, gaining hands-on experience with real deployments, while also developing expertise in distributed antenna systems and in-building RF systems.
Key Responsibilities:
GoMining is a pioneering digital platform in the Bitcoin mining industry, dedicated to democratizing access to Bitcoin mining through innovative digital mining solutions and strategic partnerships. We work across exchanges, DeFi/Web3 platforms, mining infrastructure, and institutional investment initiatives to provide our clients with diversified opportunities in the digital asset space.
We are looking for a passionate, goal-oriented, and persistent Node.js Developer to join our unique cryptocurrency investment project.
Requirements
Location: Remote - Fully remote in Asia
Compensation: $40K - $60K
Join a high-growth technology company at the forefront of Prediction Markets, AI, and Blockchains. We are experiencing parabolic growth, managing $200 million in annualized volume and growing at over 100% weekly. Our vision is backed by influential investors, including a $500 million AUM digital asset fund and an exclusive AI/crypto accelerator with a sub-1% acceptance rate.
This is a senior, high-impact role dedicated to building a performance-critical trading interface where usability, correctness, and speed are the competitive edge. You will operate directly on systems involving real money and high market risk.
The Staff Frontend Engineer will be a key architect responsible for the user-facing side of our low-latency, high-throughput trading systems. You will translate complex trading data and execution paths into a fluid, responsive, and reliable user experience.
What You'll Do:
Location: Remote - PST-CAT preference
Compensation: Competitive
We are building the next generation of Decentralized Finance (DeFi) liquidity infrastructure on Solana. Our platform solves major industry problems by moving beyond traditional over-collateralized lending. We enable under-collateralized borrowing, programmable margin accounts, and composable strategies, all through one seamless application, unlocking capital efficiency and reducing risk.
We are seeking a foundational hire, a Lead/Senior Front-End Engineer, to own and drive the frontend of our flagship platform. This role will shape the entire user experience, technical architecture, and future frontend engineering culture.
As the go-to person for all things frontend, you will be responsible for defining the technical vision and delivering a world-class, high-performance user experience for advanced DeFi users.
Location: Remote - North America/South America only - (NYC or SF based candidates heavily preferred)
Compensation: $150K - $175K
Join an organization founded by former employees of a leading crypto exchange, backed by top-tier institutional investors from both traditional finance and crypto. We are building the leading trading and yield platform for Decentralized Finance (DeFi), bringing deep expertise in algorithmic trading and high-performance engineering to the space.
We are looking for a Full Stack Software Engineer excited by the opportunity to build cutting-edge, crypto-native technology. You will work across the entire stack, integrating multiple protocols and connecting with various blockchains. This is a pivotal role requiring an individual who thrives on end-to-end ownership and technical complexity.
This role involves end-to-end ownership of features on a complex trading backend designed to manage billions of dollars in crypto transactions, as well as the high-performance frontend interfaces.
Location: New York City (Hybrid)
Compensation: $150K - $200K
Join the team behind the first parallelized Layer 1 blockchain, which has re-written the most widely adopted execution environment in Web3 to set a new standard in performance and scalability. Our platform allows applications to benefit from the speed of Web2 combined with the decentralization and sovereignty of Web3.
We are seeking an experienced Business Development Lead to drive strategic payments partnerships. This is a high-impact role requiring deep expertise in the global payments landscape. You will work directly with leadership, ecosystem teams, and strategic partners to position our blockchain as the premier chain for payments and settlement.
The Business Development Lead will be responsible for originating, negotiating, and executing strategic partnerships to expand the platform's presence in the global payments infrastructure.
Location: London
On-site | Full-time
Compensation: Competitive
Our client is an elite team of builders operating at the intersection of fintech and high-scale crypto infrastructure. As a high-growth software organization, the company is responsible for developing the technology behind some of the largest crypto social networks and digital asset launchpads globally. The organization is defined by a philosophy of extreme talent density, rapid iteration, and technical ownership.
The Lead Blockchain Payments Engineer (Fiat Ramps) will serve as a core architect of the firm's financial infrastructure. This role is responsible for designing and scaling the services that power seamless fiat-to-crypto flows, real-time risk decisioning, and immutable financial records. Based in London, this is a full-time, in-person position for an engineer who thrives in high-throughput, low-latency environments and is passionate about building the future of global value transfer.
Key Responsibilities
Payment Orchestration & Integrations
Location: Hybrid - Ashburn
Compensation: $125K - $150K
Join a lean, technical team building the critical infrastructure that delivers massive amounts of web data to companies training the world’s most powerful AI models. The client operates a vast distributed crawler, granting unique access to high-quality public web data at a global scale. Their work involves building advanced pipelines for ingesting, segmenting, and annotating billions of videos, transcripts, and audio files, directly powering dataset creation for frontier AI labs.
The client is looking for a talented Network Infrastructure Engineer with significant experience in infrastructure and network architecture design. You will be responsible for building and maintaining the robust physical and cloud infrastructure that powers their AI-driven platform. Your work will directly impact the efficiency, security, and performance of our systems at massive scale.
This role requires deep expertise across network architecture, physical deployment, cloud services, and automation (Infrastructure as Code).
Location: New York, San Francisco (Office)
Compensation: $200K - $400K
Join the Infrastructure & Platform team at a high-growth crypto derivatives exchange that is rapidly capturing market share in a multi-billion dollar annual sector. Our clients current focus is on building a multi-asset margin feature that leverages blockchain technology to allow users to post variable forms of collateral, which is essential as multi-asset margin comprises over 86% of crypto accounts.
You will play a pivotal role in designing, architecting, and deploying highly reliable, scalable blockchain services with lightning-fast performance. You will lead the development of mission-critical core infrastructure that powers their products, enabling them to bring financial venues directly to the user.
The Senior Infrastructure Engineer will be responsible for building the core components of a high-throughput, low-latency distributed system, focusing heavily on performance and cryptographic integrity.
