Location: Remote - US based candidates only

Remote | Full-time

Compensation: $170K - $220K

We are hiring on behalf of our client in the decentralized finance (DeFi) sector who is seeking a visionary Chief Marketing Officer (CMO) to define and lead the narrative for a groundbreaking market structure. The client is pioneering the first-ever Proprietary Automated Market Maker (Prop AMM) DEX on the Ethereum and EVM L2 ecosystems.

By leveraging advanced modular infrastructure, this platform addresses traditional limitations regarding high storage costs and non-deterministic transaction ordering. The result is a system that protects liquidity providers from toxic order flow while providing end-users with the most competitive prices and tightest spreads on-chain.

The CMO will be responsible for categorizing "Prop AMM on EVM" as a new industry standard and positioning the client’s platform as the dominant leader in this space. Working directly with the CEO, CTO, and CPO, the successful candidate will own the brand, growth loops, and go-to-market strategy for a product designed to outcompete both centralized and decentralized exchanges.

Key Responsibilities

HELIOS (Europe) Technologies GmbH is an independent EU Owned and Operated Company affiliated with ADAPTIT S.A.. HELIOS Europe HQ is located in Dusseldorf Germany with RF and IT support activities in Athens Greece.

This is a full-time position, located in Athens Greece. The Baseband Unit (BBU) Support Engineer is responsible for the installation, commissioning, maintenance, and troubleshooting of HELIOS 5G BBU and gNodeB hardware and software, working along with our 5G RAN Support Team. You will  ensure high performance and reliability for our Private 5G  equipment during commissioning and after sales maintenance.

Key Responsibilities

• Commissioning and Integration: Perform commissioning of 5G BBU/gNodeB, including loading data configuration files, managing site alarms, and verifying functionality.          
• Troubleshooting: Identify, analyze, and resolve 5G network performance, connectivity, and hardware issues (Level 1/2 support).
• Maintenance: Conduct on-site and remote health checks, upgrades, and maintenance of 5G infrastructure. 
• Documentation: Create and maintain technical documentation, including site-specific configuration reports and Root Cause Analysis (RCA).

Requirements

We are building an ecosystem that combines mining, payments, Bitcoin finance, and education and making it simple and secure for users worldwide to earn and use Bitcoin daily.

We are looking for a Senior / Lead Frontend Developer who can take ownership of complex backend systems, drive architectural decisions, and build scalable fintech infrastructure.

Responsibilities:

• Own and drive frontend architecture and technical strategy
• Lead development of scalable and high-performance web applications
• Ensure high quality of UI/UX implementation based on design systems
• Collaborate closely with product, design, and backend teams
• Define and enforce coding standards and best practices
• Optimize performance, loading speed, and overall user experience
• Lead refactoring and technical improvements of existing codebase
• Manage integrations with third-party services and APIs
• Mentor and guide frontend developers, conduct code reviews

Requirements

We are building an ecosystem that combines mining, payments, Bitcoin finance, and education and making it simple and secure for users worldwide to earn and use Bitcoin daily.

We are looking for a Senior / Lead Backend Developer who can take ownership of complex backend systems, drive architectural decisions, and build scalable fintech infrastructure.

Responsibilities

• Lead development of a cryptocurrency payment gateway and related financial services
• Design and implement high-load, scalable backend architectures
• Own integration and orchestration of multiple third-party payment providers
• Drive technical decisions and architecture design across services
• Build and maintain microservices infrastructure with clear separation of concerns
• Optimize system performance under heavy load (latency, throughput, fault tolerance)
• Participate in system design, data modeling, and load calculations
• Collaborate with product, DevOps, and other teams to deliver reliable solutions
• Mentor engineers and influence engineering standards and best practices

Requirements

About LawnStarter

LawnStarter is the nation's leading on-demand marketplace for lawn care and outdoor services, with $100M+ in annual bookings across three brands. We connect homeowners with vetted local Pros for everything from weekly mowing to landscaping, pool care, and beyond.

About the Growth Team

The Growth team owns customer acquisition, the engine that powers everything else. We're responsible for bringing in 150,000+ new customers per year across Google Ads, Bing, and organic channels. Paid search is our largest and most complex channel, spanning three brands (LawnStarter, Lawn Love, Home Gnome) across hundreds of local markets with intense seasonality. Core mowing is the heart of the business, and Responsive Search Ads and Dynamic Search Ads are the workhorses that drive it.

Location: Remote - Europe

Remote | Full-time

Compensation: $110K - $125K

We are hiring on behalf of our client who is a premier infrastructure provider within the decentralized web (Web3) ecosystem, serving as the critical connectivity layer for tens of thousands of applications and millions of users globally. Having established a dominant market position, the organization is now expanding its horizons by launching a sophisticated payments solution.

This new initiative enables merchants and payment providers to utilize blockchain rails for stablecoin checkouts, payouts, and deposits, already reaching millions of terminals worldwide through strategic global partnerships.

The data systems supporting this infrastructure are foundational to the company's success. As the organization transitions from MVP pipelines to a scalable production architecture, there is a need for a Senior Data Engineer to join the team. This individual will help design and operate the data foundation behind a global payments network, ensuring that systems tracking wallet connections, transaction health, and financial reconciliations are as reliable as the payment flows themselves.

Location: New York, United States • London, United Kingdom (Hybrid) 

Hybrid/Remote| Full-time

Compensation: $120K - $150K

We are hiring on behalf of our client, a leading innovator in the blockchain and decentralized finance (DeFi) sector who is seeking a Growth Associate to join its expansion team. This organization is dedicated to building decentralized applications and stablecoin infrastructure that foster a more accessible, people-powered internet.

The Growth Associate will be responsible for driving asset listings and expanding the protocol’s footprint across new blockchain networks. This is a highly commercial, results-driven role focused on identifying high-quality opportunities, structuring incentive packages, and establishing new markets. The successful candidate will manage the business development pipeline from end-to-end, acting as a key representative for the organization within the global DeFi ecosystem.

Key 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 Presales Manager at ADAPTIT, you will play a key role in driving business growth by managing the presales activities to deliver compelling solutions tailored to our clients' needs. You will collaborate closely with sales, technical teams, and clients to understand requirements, develop proposals, and showcase the value of our IT sollutions & services. Your experience will ensure the effective execution of the presales process, from initial client engagement to successful deal closure.

Location: Austin, United States (Hybrid)

Hybrid | Full-time

Compensation: $150K - $175K

Our client is an innovative firm operating at the intersection of institutional finance and emerging blockchain technology. Backed by $40M in funding from premier venture capital firms including Electric Capital and Paradigm, the organization is bridging the gap between decentralized finance and traditional Wall Street by rebuilding financial infrastructure to be faster, safer, and fully on-chain.

In this environment, security is viewed as a primary client-facing differentiator and a core pillar of institutional trust. The security program is integral to client due diligence, auditor engagements, and enterprise contract negotiations. Our client is seeking a Security Engineer to serve as the hands-on execution layer of a security strategy designed by the CISO.

This is a builder role focused on the technical implementation of a modern, cloud-native security stack. The successful candidate will stand up identity enforcement, endpoint protection, cloud posture management, threat detection, and GRC evidence pipelines. This position reports directly to the CISO, offering high technical autonomy and executive visibility within a production-grade environment.

Key Responsibilities:

Security Infrastructure & Implementation

Location: Remote with a 6 hour overlap with EST

Remote | Full-time

Compensation: $75K - $100K

We are hiring on behalf of our client who is seeking a Web Scraping Specialist to join a specialized technical team focused on building the infrastructure that delivers massive amounts of web data for the training of advanced AI models. This organization operates a massive distributed crawler and manages complex pipelines for ingesting, segmenting, and annotating billions of data points, including videos, transcripts, and audio files.

The successful candidate will lead efforts to gather and analyze data, optimize scraping processes, and support the scaling of high-quality public web data accessibility. This role is ideal for a lean, technical builder who thrives in a fast-paced environment without bureaucratic red tape.

Key Responsibilities: