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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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UX Designer

posted by: spj_bot

UX Designer - Web3 Live Sports Gaming

Location: Remote - Preference for UK as thats where the majority of the team are based, 2nd preference is EU - fully remote.

Compensation: $75K - $120K

We are a rapidly growing, stealth-mode team building the ultimate digital playground for the world's most passionate football fans. Our mission is to make the match-day experience more engaging, social, and fun by blending speed, robust data, and vibrant design. We are looking for a highly creative and user-focused UX Designer to define the look, feel, and function of our web and mobile applications, translating complex live sports data into intuitive interfaces.

You will be instrumental in leading the UX strategy for our core Web platform, where the majority of live fan interaction occurs. Your focus will be on designing interfaces that are intuitive, glanceable, and performant even during the most chaotic moments of a live game. You will own the design system, drive optimization through testing, and collaborate closely with engineering to ensure pixel-perfect implementation.

Key Responsibilities:

Job Skills

web platform professional user testing product managers prototype equity brand team build security policy design system pixel perfect scalable design optimization storytelling touchpoints communication web design funnels visual dashboards community interaction manage design CSS data visualization translate feature development look feel rapid development experience design web application css framework prototypes interactive collaborate polls responsive web design social designing interfaces managed securely collaboration analytics heatmaps prototyping performance metric creative figma cognitive load product design gamification translating bootstrap statistics user flow browser compatibility collaborative graphs mobile applications interaction applicable data design specification front end e wireframing b polished
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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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Staff Developer Tooling Engineer

posted by: spj_bot

Senior Software Engineer - Developer Tools & SDKs

Location: Remote - US & Americas

Compensation: $ Competitive

We are a fast-growing software company dedicated to supporting and developing an EVM-compatible, open-source, proof-of-stake platform. This public network is engineered for enterprise and Web3 applications, prioritizing speed, security, stability, and sustainability, and is governed by industry-leading organizations. We are seeking an experienced Software Engineer to lead the development of world-class developer tools and SDKs.

You will take the lead on crafting seamless developer experiences, owning the design, build, and maintenance of our open-source SDKs and related tooling. This role requires technical leadership, hands-on coding across multiple languages, and a strong focus on developer empathy. You will work cross-functionally to ensure our tools are intuitive, robust, and aligned with real-world developer needs.

What You'll Be Doing:

Job Skills

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Senior Rust Engineer

posted by: spj_bot

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:

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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Protocol Integration Engineer

posted by: spj_bot

Protocol Integration Engineer - Stablecoin Platform

Location: Remote - US (Would consider South America/Canada/Europe if can overlap with EST time zone.

Compensation: $170K - $200K

We are a pioneering stablecoin platform that provides developers with a superior digital-dollar building block ($\$M$) to create customized stablecoins in minutes, enabling businesses to monetize their digital dollar use cases. We are seeking an experienced Protocol Integration Engineer to join our growing team. This role is crucial for enhancing our framework, supporting technical partners, and ensuring the quality and consistency of integrations across our ecosystem.

You will serve as the bridge between our core protocol and our partners, driving the successful integration and customization of our stablecoin extension frameworks. You will be responsible for adjusting core code, enhancing APIs, providing technical education, and ensuring all partner integrations adhere to the highest standards of quality and security.

Key Responsibilities:

Job Skills

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Growth Associate, X (Twitter)

posted by: spj_bot

Growth Associate, X (Twitter) - Layer 1 Blockchain Performance

Location: New York (Hybrid)

Compensation: $150K - $200K

We are the first parallelized layer 1 blockchain, setting a new standard in performance and scalability by re-writing the most widely adopted execution environment in Web3. Our organization drives adoption, supports the community, and partners with developers to bring groundbreaking applications to life. We are seeking a Growth Associate, X (Twitter) to spearhead the development of our identity and narrative across global social platforms.

You will be responsible for defining and executing the strategic development of our brand's voice and reach, focusing heavily on platforms like X (Twitter). This role demands a blend of strategic thinking, creative instinct, and a deep understanding of crypto and meme culture to deliver innovative and engaging content that expands our community and mindshare.

Key Responsibilities:

Job Skills

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Director of Sales - Middle East & Africa

posted by: spj_bot

Lead Sales Executive - Cross-Border FinTech/Blockchain

Location: Remote - Dubai

Compensation: $160K - $180K

We are a rapidly growing technology company in the FinTech sector focused on delivering next-generation infrastructure, with a strong presence in Blockchain and Cybersecurity. We are seeking a Lead Sales Executive to drive revenue and manage end-to-end deal execution within a key territory. This role requires a high-activity, autonomous "maverick" who can operate independently with remote support and thrive in an agile startup environment.

You will be responsible for the entire sales cycle, from pipeline generation through final negotiation and procurement. This includes deep prospecting, gathering complex technical and commercial requirements, and executing channel and partner strategies to drive incremental revenue. You will be a critical representative of the company in the market, driving brand awareness at industry events and feeding back vital customer intelligence to Product and Marketing teams.

Key Responsibilities:

Job Skills

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Chief Compliance Officer

posted by: spj_bot

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:

Job Skills

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