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Sales & Marketing Manager (Web3 / DePIN)

posted by: spj_bot

Sales & Marketing Manager - Decentralized Physical Infrastructure (DePIN)

Location: Remote - Fully remote - Any timezone

Compensation: $42K - $60K

We are a venture-backed startup and a leading online distributor and holistic service provider in the rapidly growing Decentralized Physical Infrastructure (DePIN) ecosystem. Our core business combines an online store with a comprehensive suite of services, supporting innovative DePIN and Web3 projects from concept to final product distribution. We are seeking a Sales & Marketing Manager to own both client acquisition and campaign execution.

You will play a key role in driving business development for our marketing and consulting services, managing B2B relationships with partners, and executing high-impact campaigns across all channels. This role requires an entrepreneurial, hands-on professional who can operate independently, strategically advise clients, and ensure their Web3 ideas achieve real-world adoption.

Key Responsibilities:

Job Skills

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Principal Software Engineer - EU

posted by: spj_bot

Principal Software Engineer - Blockchain Wallet Infrastructure

Location: Remote - Location: European Union (remote-first, office optional) Paris/ France is always preferred. Or as close as possible.

Compensation: $145K - $240K

We are a stellar team of leaders and experts building the backbone of blockchain wallet infrastructure for the next financial era, specializing in cryptography, security, and distributed systems. We are seeking a Principal Software Engineer to lead the design, development, and scaling of our core backend systems. This is a high-impact, leadership role focused on making key architectural decisions and ensuring our platform is fast, resilient, and secure under the high-stakes demands of financial workflows.

You will own mission-critical projects end-to-end, acting as a technical leader who drives engineering standards and the long-term vision. This role involves deep technical execution alongside strategic collaboration with product, security, and executive leadership to align technical roadmap with business goals.

Responsibilities:

Job Skills

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Infrastructure & DevOps Engineer

posted by: spj_bot

Infrastructure & DevOps Engineer - High-Performance Distributed Systems

Location: Remote - (Europe-friendly time zones preferred)

Compensation: $160K - $300K

We are reengineering blockchain infrastructure from first principles to make global digital markets as precise and dependable as physical systems. Built on a leading high-performance layer-1 network, our platform delivers deterministic execution, guaranteed inclusion, and low-latency performance. We are hiring an Infrastructure & DevOps Engineer to lead critical engineering efforts that drive the performance and scalability of our next-generation distributed systems.

You will join a highly proficient team of core engineers, focusing on Rust systems programming, infrastructure architecture (Kubernetes), and operational scripting. Your work will span the full stack, from bare metal to application interfaces, and will directly support our platform which connects the L1 network with advanced L2 extensions. You will drive high-quality, frequent code shipments, engage in deep architectural discussions, and apply a coherent system design philosophy to advance the industry.

Key Responsibilities:

Job Skills

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Staff Backend Engineer

posted by: spj_bot

Staff Backend Engineer

Location: London or New York City

Onsite | Full-time

Compensation: competitive

Our client is a high-performance technology development firm responsible for building and operating the infrastructure behind the world’s largest and most active digital asset launchpads. Processing approximately $1B in daily volume, the platform operates at the bleeding edge of crypto scale, requiring systems designed for ultra-low latency, high throughput, and constant high-concurrency load.

The organization is seeking a Lead Backend Engineer to own the most complex technical challenges across the system. This is a high-stakes, high-impact role within an intense, in-person environment. The team is composed of high-agency builders who value speed, immediate impact, and rigorous engineering judgment. This position is ideal for an engineer who thrives under pressure and is motivated by the opportunity to solve ambiguous, cross-cutting problems that others cannot.

Key Responsibilities

Job Skills

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Mobile Developer- React

posted by: spj_bot

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 

Job Skills

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Full Stack Developer

posted by: spj_bot

We’re looking for a remote Full Stack Developer based in Jordan or Egypt passionate about modern architectures, seamless user experiences, and scalable backend systems to join our growing engineering team.  

 

 

Job Overview  

 

As a Full Stack Developer, you will design and build serverless and microservice-based applications leveraging AWS technologies. You’ll work across the stack from creating intuitive React interfaces to developing scalable Node.js APIs ensuring performance, reliability, and maintainability across our platforms.  

 

 

Key Responsibilities  

 

  • Design and develop serverless and microservice architectures using AWS Lambda, API Gateway, and related services.  
  • Build responsive, high-quality front-end interfaces using React.  
  • Develop and maintain robust back-end APIs using Node.js.  
  • Collaborate with cross-functional teams to deliver scalable, high-performance solutions.  
  • Implement and maintain CI/CD pipelines for smooth deployment and updates.  
  • Ensure system reliability, security, and scalability through clean and efficient code.  

 

Qualifications  

 

Job Skills

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Staff Software Engineer - Execution Team

posted by: spj_bot

Staff Software Engineer - Distributed Ledger Execution

Location: Remote - US

Compensation: $ Competitive

We are a fast-growing software company committed to supporting, developing, and servicing an open source, proof-of-stake platform. This EVM-compatible Distributed Ledger Technology (DLT) is specifically built to meet the needs of enterprise and Web3 applications, prioritizing speed, security, stability, and sustainability. We are seeking a Staff Software Engineer to be a technical leader on our core Execution Team.

You will be responsible for delivering software services, business logic, and APIs within the core Consensus Node—the heart of our DLT. This is a high-impact role requiring deep passion for solving technical challenges involving distributed execution, state management, transaction lifecycles, and economic systems (fees, rewards). You will drive technical direction, optimize performance, and mentor engineers within a highly collaborative, open-source environment.

Key Responsibilities:

Job Skills

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Senior Infrastructure Engineer

posted by: spj_bot

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:

Job Skills

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Senior Full Stack Software Engineer

posted by: spj_bot

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:

Job Skills

professional prioritizing leadership mentorship apis rest reliability handling data terraform resilience security policy technical standard scalable integration end system application architecture communication review code node js maintainability fault tolerance translation data integrity backend continuous improvement application development translate experience design web application mongodb libraries event driven integrating data securely collaborate software engineering reliable best practices managed securely workflows collaboration docker kubernetes cross functional teams full stack software engineering translating scalability API datadog collaborative infrastructure react typescript scale front end applicable data user experience code share real time datum prioritize data stores design systems financial system
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Senior Backend Engineer - Onramp

posted by: spj_bot

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:

Job Skills

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