Senior Product Manager (Crypto-Native Payments)

Location: Europe or up to GMT-3

Compensation: $90K - $110K

We are the global leader in crypto commerce, enabling millions of users across 180+ countries to use cryptocurrency for everyday needs—from gift cards and mobile top-ups to subscriptions and bill payments. For over a decade, we have operated profitably as a distributed team of 90+ people who believe that crypto should be money for everyday use.

As the market shifts from speculation to real-world utility—driven by stablecoin salaries, DeFi yield, and airdrop proceeds—we are looking for a Senior Product Manager to bridge the gap between complex onchain mechanics and seamless consumer experiences. You will join a focused squad of 5-7 engineers and designers in a high-agency, low-meeting environment where product decisions are made close to the work.

What You’ll Do:

Senior Firmware Engineer (Blockchain Hardware)

Location: Based UTC -9 and +1

Compensation: $120K - $165K

We are looking for a Senior Firmware Engineer to develop, design, and optimize firmware for our cutting-edge cryptocurrency hardware wallets. In this role, you will be at the intersection of high-stakes security and embedded systems, collaborating closely with hardware and software teams to deliver secure, reliable, and highly efficient firmware solutions.

You will be responsible for the "brain" of our devices, ensuring that our users' digital assets are protected by battle-tested code. From architecting multi-threaded applications to ensuring seamless hardware-software compatibility, you will play a vital role in maintaining and improving both current and next-generation security devices.

Key Responsibilities:

Mercier Consultancy MD is excited to offer a unique opportunity for Portuguese Speaking Customer Service Representatives for a Cryptocurrency Exchange based in Greece. This role is ideal for individuals who have a passion for the cryptocurrency market and are dedicated to delivering exceptional customer support. As a member of our customer service team, you will assist clients in navigating their inquiries related to cryptocurrency transactions and services, all while communicating effectively in Portuguese.

Key Responsibilities

• Manage customer inquiries regarding cryptocurrency exchanges, wallets, and trading support via phone, email, and chat in Portuguese.
• Provide guidance on account setup, transaction processes, and security measures.
• Assist customers with troubleshooting and resolving issues related to their accounts or transactions.
• Educate clients about cryptocurrency products and market trends to enhance their understanding.
• Document all customer interactions accurately in our CRM system for effective follow-up.
• Collaborate with technical teams to ensure seamless service delivery and address customer concerns.
• Stay informed about the latest developments in the cryptocurrency industry to provide relevant information to customers.

Requirements

Who are we?

SupportYourApp is a global Intelligent Support-as-a-Service leader, partnering with tech companies in 30+ countries since 2010 to deliver secure customer and technical support. What if you had a chance to be a part of the world's leading hardware, software, or SaaS solutions? 

Join our team as an Account Manager and take ownership of a key client relationship.

You will work closely with our leadership team, including the Chief Customer Officer , and be responsible for navigating complex client expectations, aligning priorities, and driving constructive, solution-focused conversations.

This role requires strong stakeholder management skills, cultural awareness, and the ability to build trust in high-pressure environments, while developing a deep understanding of both the technical and business aspects of the client’s product.

If you enjoy owning challenging client relationships and turning complexity into structure — let’s see what it takes 💛

What you will do:

Data Scientist

Location: New York

On-site | Full-time

Compensation: Competitive

Our client is a high-performance technology development company responsible for the entire technical stack behind the world’s largest and most active digital asset launchpads. Operating at the absolute edge of crypto scale, the systems managed by this organization are defined by ultra-low latency, high throughput, and constant high-concurrency load. This is a mission-critical environment where technical precision is paramount and the impact of every deployment is immediate.

The organization is seeking an experienced, versatile Data Scientist who thrives in an intense, fast-paced setting. This role provides the autonomy to identify high-impact opportunities, design sophisticated analytical solutions, and measure their direct effect on a product used by massive global audiences. Joining this team means entering a high-density talent environment that values first-principles thinking, extreme ownership, and the ability to operate independently within a high-stakes ecosystem.

Key Responsibilities

AscendEx is a well-recognized global cryptocurrency trading platform. Currently, we are looking for a mid/senior backend developer to join our global team and build out the high-performance, low latency, robust, and scalable core trading system.

Responsibilities:

- Review designs, document technical specifications, and provide time estimates for implementing features/fixes.

- Write high-performance, reusable, modular code along with automated tests.

- Maintain a close working relationship with a geographically distributed development team in an evolving agile environment.

- Follow common design patterns, architectural practices and development methodologies.

- Identify and resolve performance issues to optimize for speed.

Requirements

- 5-12 years of professional work experience in a software development organization.

- 7+ years of professional work experience with Scala, Java, or Go.

- Experience designing and coding large distributed systems with high throughput.

- Demonstrated ability to deliver high-quality software in a fast-paced environment with iterative deadlines.

- A dedicated team player with excellent verbal and written communication skills.

- Able to read, write, and speak fluent English. Mandarin-speaking is a bonus.

- Bachelor's degree in computer science, software engineering or related major.

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.

Responsibilities

• Development of a cryptocurrency payment gateway.
• Development of game mechanics.
• Development of an internal transaction system.
• Integration with blockchains: Bitcoin, Ethereum, Binance Smart Chain, Tron, DEX and CEX exchanges, and smart contracts.
• Designing and implementing horizontally scalable service architectures.

Requirements

Data Scientist - Consumer Product Optimization

Location: New York City, London (Office)

Compensation: $250K - $300K

We are seeking an experienced, versatile Data Scientist to join our team, which is focused on a fast-paced consumer-facing product within the fintech or equivalent industry. This is a high-autonomy role where you will have the freedom to identify opportunities, design and implement solutions, and measure their impact across our entire product suite.

We value generalists who possess breadth across the data science field and thrive on end-to-end ownership. You will collaborate with cross-functional teams while driving projects independently from conception to completion.

The Data Scientist will be responsible for leveraging data to drive product decisions, optimize user experiences, and uncover strategic opportunities for growth.

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

Project Manager - High-Volume Crypto Trading Platform

Location: Remote - European based candidates only

Compensation: $150K - $170K

We lead the way in cryptocurrency trading, operating the largest Telegram trading bot and facilitating over $28 billion in volume for more than 50,000 daily active users. We deliver seamless on-chain trading experiences with advanced tools like DCA, limit orders, sniping, and automatic wallet copy-trading. Join our lean team to contribute to a cutting-edge and widely used product that sets the standard in speed, innovation, and reliability.

We are seeking a Project Manager to oversee task distribution, delivery timelines, and project coordination across our growing development team. This role bridges technical expertise and project leadership, ensuring smooth collaboration and efficient delivery of key initiatives for our high-volume trading platform.

Key Responsibilities: