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

Senior DevOps Engineer (Remote – Web3/DeFi)

Location: Fully Remote - EU timezone Type: Full-Time

Compensation: competitive

We are seeking a Senior DevOps Engineer to architect and scale the mission-critical infrastructure powering a next-generation decentralized exchange (DEX) and network. In this role, you will be the guardian of our system’s security, scalability, and high availability, ensuring our engineering team can ship rapidly without compromising reliability.

We are a dynamic, forward-thinking, and fully remote team with an ambitious roadmap. This is an opportunity for a reliability-focused engineer who loves automation, security, and performance tuning for high-throughput, low-latency environments. If you thrive on building self-healing systems and are excited by the challenge of shaping the future of finance, we want to hear from you.

Key Responsibilities:

Full Stack Engineer

Location: New York (Office)

Onsite | Full-time

Compensation: Competitive

Our client is a high-performance technology development firm responsible for building and operating the foundational infrastructure behind the world’s most active digital asset launchpads. The systems managed by this organization are defined by ultra-low latency, high throughput, and constant high-concurrency load. This is a mission-critical environment where technical precision is paramount, and the impact of every deployment is immediate.

The organization is seeking an exceptional Full Stack Engineer to join an elite team of builders. This role offers the opportunity to work on production systems operating at massive scale, providing hands-on responsibility and a rapid feedback loop. The team is composed of high-caliber engineers who value clarity of thought, code quality, and execution speed. This position is ideal for an early-career engineer who is intellectually rigorous, possesses high agency, and is eager to solve ambiguous, technically challenging problems from first principles.

Key Responsibilities

Smart Contract Engineer (Rust) - High-Performance DeFi Infrastructure

Location: PST-CAT preference

Compensation: Competitive

We are building the next generation of Decentralized Finance (DeFi) liquidity infrastructure on the Solana blockchain. We are solving a critical industry problem where reliance on over-collateralized lending leads to inefficient capital use, fragmented systems, and unnecessary liquidation risks.

Our solution introduces under-collateralized borrowing, programmable margin accounts, and composable on-chain strategies ("Recipes"), all built with high-performance Rust smart contracts. We are redefining how liquidity moves in DeFi: faster, safer, and more capital-efficient.

We are looking for a highly capable Smart Contract Engineer (Rust) to join our core engineering team and shape the technical backbone of our protocol. You will design, build, and optimize Rust-based smart contracts that power our DeFi infrastructure, working closely with product and protocol teams to create scalable, secure, and innovative financial primitives.

As a core contributor, you will take full ownership of your work, from concept and research to mainnet deployment and maintenance.

Mobile Engineer (Flutter/Dart) - Decentralized Trading Platform

Location: Remote - US or Europe remote. Must overlap with ET by 4 hours.

Compensation: $140K - $300K

We are a well-funded, innovative financial technology company on a critical mission: to enable anyone with a digital wallet to trade stocks, commodities, currencies, and crypto with unprecedented transparency. We are replacing the opaque, offshore brokerage model with a transparent, permissionless trading stack built entirely on-chain. Every transaction, deposit, and withdrawal is verifiable through open, auditable code. We have secured significant backing from top-tier institutional and crypto-native investors.

We are seeking a highly proficient Mobile Engineer to own and build our native mobile trading experience from the ground up. You will use Flutter and Dart to deliver a high-performance, cross-platform application (iOS and Android) that adheres to strict architectural standards and seamlessly integrates with our on-chain protocols.

Responsibilities:

AI Agent Engineer (Remote)

A rapidly scaling leader in the telehealth and AI space is seeking an AI Agent Engineer to join their remote team. We are committed to leveraging technology to improve access to essential services and are looking for a hybrid problem-solver to drive our next phase of AI-driven workflow transformation.

This full-time, remote (US-based) role is critical for expanding agentic workflows that reduce manual effort and improve service accessibility. You will be instrumental in the end-to-end lifecycle of our AI agents, from initial discovery to operational management and continuous improvement.

We are looking for a unique combination of skills:

• The Investigator: Dive deep with stakeholders (end-users and executives) to map existing workflows, identify pain points, and translate messy processes into precise agent tasks, policies, and success metrics.
• The Sprinter: Rapidly develop and deploy agents using a low-code AI agent orchestration environment. You'll manage a roster of 15+ agents, driving their continual improvement and measurable impact.
• The Technician: Traverse internal APIs and self-serve to build and refine internal API action endpoints, safely integrating agents into our technical ecosystem.

Senior Software Engineer - Rust

Location: Remote - European time zone

Start Date: Aiming for 15/12/2025

Job Department/BU: Engineering

Job Function: Development

We are seeking a highly skilled and experienced Senior Software Engineer focused on the Rust programming language to join our innovative Engineering team. In this pivotal role, you will be instrumental in elevating our software development processes and actively contributing to high-quality product delivery. You will serve as a technical and mentoring leader, driving best practices across multiple teams and codebases.

The Senior Software Engineer is responsible for driving the quality of engineering practices within a team, identifying and implementing cross-team improvements, and directly contributing to product development. This role requires technical leadership, mentorship, and a commitment to continuous improvement in our software building and maintenance processes.

Key Responsibilities:

Frontend Deployed Engineer - API Tools & Developer Experience

Location: On site - Williamsburg, Brooklyn

Compensation: $170,000 – $230,000

We are a rapidly scaling software company, backed by top investors, enabling businesses to offer "Stripe-level" SDKs (client libraries) and documentation for their REST APIs. Our platform tackles the core pain points of APIs—untyped, unstandardized, and out-of-sync—by leveraging technology inspired by internal tooling at major tech firms. We are looking for an ambitious Frontend Deployed Engineer to help us scale from $1M to $10M ARR.

This is a high-impact, hands-on role at the intersection of engineering and customer success, ideal for engineers with entrepreneurial goals. You will work directly with CTOs, VPs of Engineering, and developers at fast-growing tech companies to solve their highest-priority problems, influence our product roadmap, and drive adoption.

What You’ll Do:

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 

Location: US or Europe

Remote | Full time

Compensation:  $200K - $300K

Our client is a premier non-custodial trading and data platform at the forefront of cryptocurrency technology. The organization provides a unified base of operations where users retain custody of their funds while accessing live data, instant execution, and powerful charting tools across all emerging markets. By maintaining a lean, high-performance team of exceptional talent, the client ensures rapid release cycles that place new features in the hands of tens of thousands of active users immediately upon completion.

The organization is seeking a Principal Frontend Engineer with extensive experience building highly performant, real-time, and interactive web applications tailored for trading. This individual will serve as a subject matter expert, leveraging a background as a founding or first engineer to guide the platform through its next phase of growth and product expansion.

Key Responsibilities