Senior Rust Engineer - On-Chain Security Infrastructure

Location: Remote - Europe

Compensation: $165K - $200K

We are building a Credible Layer—a step-level improvement for on-chain security designed to safeguard the crypto industry and restore credibility after billions were lost to hacks. We are creating an on-chain protocol and off-chain infrastructure that enables protocols to enforce security rules for every transaction. Backed by world-class investors, we are seeking a Senior Rust Engineer to work on bleeding-edge infrastructure at the heart of our mission.

You will play a crucial role in shipping cutting-edge features that extend the EVM (Ethereum Virtual Machine) to enable security rules to be checked after every state transition. This is a high-impact, deeply technical role requiring expertise in performance optimization and low-level systems programming within a collaborative, fast-iteration environment.

Key Responsibilities:

Senior Infrastructure Engineer - Blockchain Wallet Backbone

Location: Remote - Location: United States (remote-first, office optional). EST time is preferred

Compensation: $180K - $300K

Join a stellar team of leaders and experts in blockchain technology, cryptography, and security. We are building the backbone of blockchain wallet infrastructure for the next financial era. We are seeking a Senior Infrastructure Engineer to design, operate, and scale systems at the intersection of blockchain, cybersecurity, and distributed infrastructure, preparing us 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 our workflows, ensuring our 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:

Backend Engineer - High-Throughput FinTech/Crypto Infrastructure

Location: New York City (Office)

Compensation: $250K - $300K

We are a high-growth software company contributing to one of the world's largest crypto social networks, moving fast and redefining what is possible in the FinTech and crypto space. We are seeking an elite Backend Engineer to design and scale the complex systems powering seamless fiat-to-crypto flows, real-time risk decisions, and rock-solid financial records for a 24/7 system.

You will own mission-critical systems and services at the core of our platform, working on high-throughput, low-latency distributed systems. This role requires deep technical expertise at the intersection of payments, compliance, risk, and on-chain infrastructure.

Key Responsibilities:

Senior/Lead EVM Engineer - Distributed Ledger Optimization

Location: Remote - US

Compensation: Competitive

We are a fast-growing software company committed to supporting, developing, and servicing an open source, proof-of-stake, EVM-compatible platform. This decentralized network is built for enterprise and Web3 applications, prioritizing speed, security, and stability. We are seeking a seasoned EVM Engineer to join our Smart Contracts team and drive the performance and optimization of our core native services (Java) and Web3 services (JS/TS).

You will be a high-impact contributor, spending approximately 80% of your time designing, coding, and testing core components. Your focus will be on the execution layer, specifically transforming network node states, processing transaction bytes, and exposing critical network data. This includes innovating on compiler and optimization algorithms, enhancing EVM features, and contributing to open-source code clients.

Key Responsibilities:

Creative Marketer - Next-Generation Layer-1 Blockchain

Location: Paris (Hybrid)

Compensation: $80K - $105K

We are a well-funded startup building a next-generation base layer blockchain designed to unlock customizability, scalability, and privacy by combining native proof verification directly into the protocol. Fueled by a $3.4M investment from top-tier venture capitalists, we are looking for a resourceful, creative marketer with a hacker mindset to amplify our brand voice and drive aggressive growth in the blockchain space.

This role is for an action-oriented, highly autonomous builder who thrives on experimentation and driving measurable outcomes. You will be responsible for end-to-end marketing execution, managing high-impact campaigns, and creating engaging content across all channels to grow our reach and mindshare.

Key Responsibilities:

Founding Engineer - High-Growth DeFi Mobile Trading App

Location: Remote - US Remote (Must be able to travel to NYC 2 weeks at a time, every 1-2 months for in person collaboration)

Compensation: $200K - $300K

We are a rapidly growing mobile app—the “Robinhood for DeFi”—that allows anyone to trade cryptocurrencies on-chain through a user-friendly interface. Since our launch, we have attracted 1.5+ million users. We are a lean, mission-driven team dedicated to making decentralized finance open and accessible to the world. We are looking for a Founding Engineer to assume a hands-on role in designing, building, and maintaining the production features that power our platform.

You will have end-to-end feature ownership across both our mobile and backend systems, shaping the core user experience for millions of users. This role demands rapid iteration, a security-first mindset, and the ability to design robust, scalable features. You will be a decision-maker and implementer, directly influencing the technical direction of the company.

What You'll Be Doing:

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 and misuse of prescription medications and illicit drugs. The testing is used by healthcare professionals to obtain objective information about patients’ recent use of prescription medications and/or illicit drugs and helps monitor the effectiveness of treatment plans.

Under general supervision monitors and initiates claim appeals on all insurance claims and pending receivables after final bill.  This position will be expected to maintain a comprehensive understanding of general coding and billing compliance, the adjudication process and contractual obligations specific to various payers. 

The following are intended to be examples of the accountabilities for which the person in this position is responsible.  This position is not intended to be complete or all-inclusive and does not preclude management from assigning other or related functions for which the individual has demonstrated competency through performance.

We are OB Streem, a leading end-to-end logistics provider delivering intelligent and innovative solutions in Southeast Europe. Our rich heritage stems from decades of expertise with ORBIT (Orphee Beinoglou International Transports) and Makios Logistics and drives our forward-thinking approach in providing excellence in service.

We believe every journey begins with a commitment—to our clients and our team. With a deep-rooted passion and a drive to redefine industry standards, we strive to create seamless logistics solutions that empower businesses and individuals alike. Our mission is to navigate the complexities and challenges of global logistics, ensuring flexibility, reliability, efficiency, and an unwavering focus on customer satisfaction.

As part of the OB Streem family, you will be contributing to maintain a legacy of excellence while being empowered to innovate, collaborate, and make a meaningful impact every day. If you share our vision of transforming logistics into an experience of trust and reliability, we invite you to embark on this exciting journey with us.

We are actively seeking a Talent Acquisition Specialist to join our Talent Acquisition team in Marousi.

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 and misuse of prescription medications and illicit drugs. The testing is used by healthcare professionals to obtain objective information about patients’ recent use of prescription medications and/or illicit drugs and helps monitor the effectiveness of treatment plans.

Why Millennium Health?

• Excellent earning potential with a customer focus: Includes a competitive base salary, uncapped monthly commissions, vehicle stipend, and mileage reimbursement. Comprehensive benefits package including flex time-off plan!
• Work with a talented and passionate team: You’ll partner with our expert clinical team and laboratory to ensure best-in-class support, quality, performance, and accountability.
• Join us at an opportune time for growth and advancement: We're expanding rapidly and have an excellent trajectory. This means a great foundation and you’ll be joining at the perfect time to help contribute to our and your future success.

The Job:

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: