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:

Overview 

We’re looking for a Mobile Engineer passionate about creating high-quality, user-focused applications that connect people through performance, movement, and data especially within sports and wearable technology ecosystems. 

Job Overview 

You will design, build, and maintain React Native applications for both Android and iOS. You’ll develop tools and experiences that connect users through sports and activity platforms, integrating with wearables and real-time data systems to deliver seamless tracking, analytics, and engagement. 

You’ll collaborate closely with backend developers, product managers, and designers to turn complex data and operational flows into intuitive, reliable mobile experiences. 

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 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:

Full Stack Engineer - Payments & FinTech Web Applications

Location: Remote - Based in EST or GMT+1

Compensation: $120K - $150K

We are a high-growth technology company building a robust FinTech and payments platform. We are seeking an experienced Full Stack Engineer with strong product sense and deep technical expertise to design and build the secure, scalable, and high-performing web applications that power our platform. This role requires translating complex backend financial systems into intuitive, reliable user experiences.

You will own the development lifecycle of web applications from design through release, working across the full stack with an emphasis on the frontend user experience. You will collaborate closely with backend teams, ensuring that all features prioritize performance, security, and scalability. You will be expected to treat UI components and APIs as products, maintaining high standards for code quality and architectural clarity.

What You'll Do:

Chief Compliance Officer (CCO) - Global Payments Infrastructure

Location: Remote - US

Compensation: $ Competitive

We are building a platform dedicated to enabling drastically faster, cheaper, and more reliable transactions for businesses in emerging markets, working toward a vision of frictionless global commerce. We are looking for a Chief Compliance Officer (CCO) to take full, end-to-end ownership of our compliance function. This critical leadership role requires both strategic vision and tactical execution with a strong founder's mindset.

As CCO, you will be the ultimate owner of compliance strategy, execution, and team-building across global markets. You must be equally comfortable defining licensing roadmaps with leadership and diving into the deepest details of operational compliance. Your primary mission is to design robust compliance frameworks that mitigate risk while successfully enabling rapid growth and expansion across emerging markets.

Key Responsibilities:

Full Time Female Specimen Collector Phlebotomist 

Location: Lexington, KY

Schedule: Full-Time, Monday 9:00am-5:00pm, Tuesday-Friday 8:00am-5:00pm

Seeking: Female candidates required for observed collections of gender identified female patients.

Help make a positive impact in your community! 

Millennium Health LLC is an accredited specialty laboratory with more than a decade of experience in medication monitoring and drug testing services, helping clinicians monitor use of prescription medications and illicit drugs supporting improved clinical decision-making as part of treatment for millions of Americans with chronic pain, mental illness, and substance use disorders.

The Specimen Collector Phlebotomist is a key role at Millennium Health.  As our representative, this position provides exemplary care and exceptional customer service to patients, clinicians, and our laboratory.

As a Specimen Collector Phlebotomist: 

Full Time Female Specimen Collector Phlebotomist 

Location: Akron, OH

Schedule: Full-Time | Monday-Friday 8:00am-4:00pm

Seeking: Female candidates required for observed collections of gender identified male/female patients.

Help make a positive impact in your community! 

Millennium Health LLC is an accredited specialty laboratory with more than a decade of experience in medication monitoring and drug testing services, helping clinicians monitor use of prescription medications and illicit drugs supporting improved clinical decision-making as part of treatment for millions of Americans with chronic pain, mental illness, and substance use disorders.

The Specimen Collector Phlebotomist is a key role at Millennium Health.  As our representative, this position provides exemplary care and exceptional customer service to patients, clinicians, and our laboratory.

As a Specimen Collector Phlebotomist: 

Full Time Male Specimen Collector  

Location: Libby, MT

Schedule: Full-Time | Monday 12:00pm to 8:30pm, Tuesday/Wednesday 2:00pm to 8:30pm Thursday / Friday 5:00pm to 8:30pm (30 hours/week)

Seeking: Male candidates required for observed collections of gender identified male patients.

Help make a positive impact in your community! 

Millennium Health LLC is an accredited specialty laboratory with more than a decade of experience in medication monitoring and drug testing services, helping clinicians monitor use of prescription medications and illicit drugs supporting improved clinical decision-making as part of treatment for millions of Americans with chronic pain, mental illness, and substance use disorders.

The Specimen Collector is a key role at Millennium Health.  As our representative, this position provides exemplary care and exceptional customer service to patients, clinicians, and our laboratory.

As a Specimen Collector: 

DSI Systems Inc. has an immediate opening for a Field Support Representative. The Field Support Representative (AT&T) plays a critical role in ensuring consistent, high-quality retail execution across assigned locations. This role is primarily focused on daily in-store visits, maintaining brand standards for AT&T, supporting retail staff, and capturing field-level insights. Representatives are the frontline ambassadors of AT&T in the field, ensuring that every store visit drives operational excellence and customer readiness.

At DSI, our culture is built on a foundation of teamwork, accountability, and a commitment to field excellence. We believe in empowering our Field Support Representatives to build strong relationships with store management, deliver exceptional customer experiences, and uphold the highest standards of merchandising and retail execution. Our team thrives on collaboration, continuous improvement, and a shared passion for representing the AT&T brand with integrity and professionalism.

What You'll Be Doing