Senior/Lead Smart Contract Engineer - Decentralized Perpetuals Exchange

Location: Remote - US or EU if willing to overlap 6+ hours with ET

Compensation: $250K - $500K

We are building the backbone of global decentralized finance (DeFi), operating the largest perpetual exchange on Arbitrum and processing over $20 billion in cumulative trading volume. Our platform enables leveraged trading of real-world assets (RWAs)—commodities, forex, indices, and stocks—alongside crypto, bringing global markets on-chain with full self-custody. Backed by General Catalyst and Susquehanna International Group, we are a small team providing institutional-grade reliability for a protocol handling billions in volume.

We are seeking an exceptional Senior or Lead Smart Contract Engineer to help scale our protocol as we expand to hundreds of markets and billions in daily volume. You will work directly with our founding team (backgrounds from Harvard, Bridgewater, and BlackRock) to architect and implement critical protocol upgrades and new market mechanisms for the next generation of on-chain derivatives.

This is not a junior role. We need an expert who has built and maintained perpetual Decentralized Exchange (DEX) smart contracts in production at scale.

Key Responsibilities:

Senior/Lead Backend Engineer - FinTech/Crypto

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

compensation: $115K - $130K

We are seeking a Senior/Lead Backend Engineer to join our team dedicated to revolutionizing the FinTech and crypto industries. You will be a pillar of our engineering team, working directly with the product team to solve complex banking and crypto problems. This role requires an obsession with robust architecture, efficiency, and resilience, and a commitment to delivering the most elegant solutions and the best product for our customers.

This is a fast-paced, high-impact role where your speed, ability to deliver, and capacity for elegant problem-solving will be critical. You will be responsible for building the core services that drive our new paradigm in finance.

What you’ll be working on:

Lead Mobile Engineer - Fintech/Blockchain

Location: Remote - Location: US or EU (remote-first, office optional). Based in EST time zone preferably and as close to France, Paris is always the major preference.

Compensation: $140K - $220K

We are hiring a Lead Mobile Engineer to drive the user-facing side of our secure, next-generation financial platform. This remote-first role is focused entirely on mobile, requiring you to design, build, and refine our iOS and Android applications, craft intuitive cross-platform interfaces, and shape the mobile SDKs that developers rely on. This is a critical opportunity to turn complex financial requirements into simple, trustworthy workflows while owning projects end-to-end.

As the Lead Mobile Engineer, you will set the technical direction for our user-facing mobile experience, balancing fintech-grade UX with bank-grade security and reliability. You will be responsible for bringing complex requirements into production quickly and rigorously.

Responsibilities:

Full-Stack Engineer, AI Financial Agent

Location: Remote - NYC preference - will accept Remote USA to work EST hours - Will accept LATAM region to work EST hours and also Tel Aviv.

compensation: $160K - $200K

We are a technology company that provides the first automated, on-chain economic security system for crypto protocols, helping them optimize risk management and capital efficiency while safeguarding user funds. Our platform secures billions of dollars in assets for leading protocols by analysing protocol mechanics and scenario implications using world-class custom EVM simulations. We are seeking a proactive and results-driven Full-Stack Engineer to join our AI team and develop our cutting-edge financial AI agent.

As a Full-Stack Engineer reporting directly to the Head of Product & AI, you will play a critical role in working closely with the CEO and the AI team to design and build the full-stack systems that power our financial AI agent.

Responsibilities:

Exciting opportunities await at Mercier Consultancy MD! We are looking for a passionate Hungarian Speaking Gaming Support Representative to join our dynamic team. This role offers the unique benefit of paid relocation to Sofia, Bulgaria, making it the perfect chance to advance your career while discovering a new culture. In this position, you will assist our Hungarian-speaking customers, providing them with top-notch support as they explore our gaming products and services.

Key Responsibilities

• Deliver outstanding customer support via various communication channels to Hungarian-speaking clients.
• Address inquiries related to game functionalities, account issues, and provide troubleshooting assistance.
• Record customer interactions and feedback for continuous enhancement of service quality.
• Work closely with the development team to escalate and resolve complex gaming-related issues.
• Stay informed on game updates, community trends, and company developments.

Requirements

Join Mercier Consultancy MD as a Czech Speaking Solutions Consultant focusing on Google Products, with the exciting opportunity of fully paid relocation! In this role, you will leverage your language skills and expertise to help clients effectively integrate and utilize Google’s suite of products to enhance their business processes. You will be instrumental in providing tailored solutions that cater to the specific needs of each client.

Key Responsibilities

• Engage with clients to identify their needs and goals regarding Google Products.
• Design and deliver customized solutions that optimize the use of Google tools and applications.
• Act as a trusted consultant, providing insights and recommendations based on best practices with Google products.
• Collaborate with internal teams to ensure seamless implementation and maintenance of client solutions.
• Conduct training sessions for clients, ensuring they are empowered to leverage Google products effectively.
• Keep up to date with the latest developments in Google Products and industry trends to provide informed advice to clients.

Requirements

Location: Remote (US or Canada)

Compensation: 180,000 - 270,000 (Base Salary) + ISO Options

We are a high-growth, market-leading software company operating in the B2B data space, empowering everyone to take action on their data. We're pioneering a new operational paradigm in marketing by leveraging an AI Decisioning platform that allows non-technical users to set goals and guardrails for personalized customer interactions.

We are seeking a Senior Full Stack Engineer with a strong focus on the front end (70-80% front end, 20-30% back end) to join our fast-moving team. You will be instrumental in developing the intuitive interface that integrates complex machine learning models, unlocking advanced growth and marketing capabilities for our customers.

As a Senior Full Stack Engineer, you will own the end-to-end development of features for a new generation of marketing and growth products, ensuring a seamless and powerful user experience.

Key Responsibilities:

Product Engineer

Location: Hybrid in New York (Flatiron) or Boston, MA

Compensation: $160,000 - $225,000 (Base Salary) + Competitive Equity

We are a well-funded, AI-first medical practice backed by over $35M from top-tier VC firms. Our mission is to define the future of human + AI collaborative care models by building a platform that automates across the entire clinical stack. We are seeking a talented, driven Product Engineer to take significant ownership over our product and help scale our engineering organization as we serve hundreds of thousands of patients nationwide.

This is a high-impact, hybrid role where you will be at the intersection of full-stack development, data infrastructure, and AI tooling. You will work cross-functionally with product, clinical, and commercial teams to integrate our platform with prominent healthcare organizations.

What you’ll be working on:

At HSO, we’re looking for a Global Performance Marketing Manager to drive growth through paid digital campaigns across multiple channels worldwide. This is a hands-on role for someone with solid experience running and optimizing campaigns across search, social, display, and newer platforms. The ideal candidate will be comfortable building and managing multiple campaigns, analyzing data, and making smart recommendations to improve ROI, pipeline, and customer acquisition. Strong knowledge of PPC, paid social, and conversion optimization is essential.

Antipollution, a member of Vasileiadis Group of Companies (V Group), is a leading provider of environmental and waste management solutions across the Eastern Mediterranean, Egypt, and the Balkans. Operating in six main business pillars, including Port Reception Facilities, Emergency Response Services, Decontamination Services, Renewable Energy, Alternative Fuel Production from Waste, and Technology, we are committed to sustainability, innovation, and operational excellence.  

Role Overview 

We are seeking a skilled Naval Architect to join our Team and support our growing fleet. The ideal candidate will contribute to the design, new building, performance, and compliance of vessels, ensuring safety, efficiency, and adherence to the latest environmental standards. The role involves close collaboration with technical, operations, and environmental teams to integrate innovative and sustainable solutions into vessel design and retrofits.  If you are passionate about new building, ship design, innovation, and sustainable shipping solutions, we’d love to hear from you. 

Key Responsibilities