Junior Software Engineer à Grande-Bretagne

IOG, is a technology company focused on Blockchain research and development. We are renowned for our scientific approach to blockchain development, emphasizing peer-reviewed research and formal methods to ensure security, scalability, and sustainability.

Our projects include decentralized finance (DeFi), governance, and identity management, aiming to advance the capabilities and adoption of blockchain technology globally.

We invest in the unknown, applying our curiosity and desire for positive change to everything we do. By fueling creativity, innovation, and progress within our teams, our products and services are designed for people to be fearless, to be changemakers.

Bitcoin DeFi is about unlocking real utility for the world’s most trusted digital asset without ever compromising user control. For developers and innovators, this means finding a way to use Bitcoin in decentralized finance without forcing holders to hand their BTC to a third party.

Until now, most attempts at Bitcoin DeFi have relied on “wrapped” tokens that essentially represent a promise – you send your BTC away and trust someone else to issue a proxy token on another chain. In all these custodial models, users effectively give up custody of their bitcoin to an intermediary in exchange for a tokenized representation. This status quo runs counter to Bitcoin’s core ethos of self-sovereignty and security.

As an experienced software engineer with a passion for Rust and a drive for technical excellence, you’ll contribute directly to product development while championing quality engineering practices that raise the bar across our organization.

As a senior member of our engineering group, you’ll act as a mentor, problem solver, and technical leader—helping teams simplify complexity, adopt modern practices, and build innovative software at scale.

• Champion high-quality engineering practices and proactively tackle complex challenges.
• Debug and resolve system-wide issues while driving a culture of observability and monitoring.
• Collaborate with cross-functional teams to enable iterative and scalable development.
• Lead technical design, code reviews, and integration of software components.
• Act as a go-to expert across multiple codebases, languages, and platforms.
• Guide and mentor engineers, providing constructive feedback and technical direction.
• Be proactive and require minimal supervision or mentoring to complete tasks.
• Produce clear documentation to ensure maintainability and knowledge sharing.
• Ensure reliability of deployed products, including availability for critical support when needed.

• 7+ years of software engineering experience, including 3+ years of Rust in production.
• Blockchain and Web3 knowledge, particularly UTxO experience (Cardano or Bitcoin)
• Experience with multithreading, peer to peer networking and distributed systems.
• Proven expertise in Rust’s ownership model, borrowing, lifetimes, and concurrency.
• Strong knowledge of functional and object-oriented programming paradigms.
• Experience with web services, REST APIs, HTTP protocols, and distributed systems.
• Knowledge of Bitcoin core, Taproot Scripts and BitVM is a plus
• Experience with Multi-party computation and cryptographic libraries is a plus
• Practical experience with Agile methodologies, CI/CD pipelines, and test-driven development.
• Skilled in Git workflows, debugging, and designing scalable architectures.
• Familiarity with cloud platforms (AWS, GCP, Azure), containerization (Docker) and orchestration (Kubernetes).

• Remote work
• Laptop reimbursement
• New starter package to buy hardware essentials (headphones, monitor, etc)
• Learning & Development opportunities
• Competitive PTO

At IOG, we value diversity and always treat all employees and job applicants based on merit, qualifications, competence, and talent. We do not discriminate on the basis of race, religion, color, national origin, gender, sexual orientation, age, marital status, veteran status, or disability status.