Core Developer - Polkadot Runtime

This position is listed on behalf of a partner company, who manages all applications and next steps. Our partner is looking for a Core Developer - Polkadot Runtime based in Saudi Arabia.Join a remote-first global engineering team building foundational infrastructure for the next generation of the internet. In this role, you’ll work on core runtime functionality that underpins a resilient and decentralized blockchain ecosystem. You’ll design and implement cutting-edge protocols used by the network and by teams building applications on top of it. Your work will have a direct impact on core technology while giving you the opportunity to solve complex systems problems alongside experienced engineers. You’ll contribute to open-source projects and collaborate in an environment built around transparency, peer review, and technical excellence. This is an opportunity to help shape decentralized technology while working flexibly with a globally distributed team.AccountabilitiesDesign and implement cutting-edge protocols and core runtime functionality that support a decentralized blockchain ecosystem.Build and maintain foundational protocol components used by the network and by teams developing applications on top of it.Develop tooling, abstractions, and infrastructure that make it easier for developers to build reliable and innovative decentralized applications.Collaborate closely with product, design, and engineering teams to translate technical requirements into effective solutions.Contribute to open-source development practices, including participating in peer reviews as both a reviewer and reviewee.Take ownership of technical initiatives, work autonomously, and remain accountable for project outcomes.Analyze complex systems and contribute to architectural and system design decisions.Communicate technical concepts and project outcomes clearly to both technical and broader audiences, including through written content and presentations.RequirementsProfessional software engineering experience with a strong understanding of system design and complex distributed or technical systems.Ability to work independently, investigate challenging problems, and develop effective solutions with limited supervision.Strong analytical and problem-solving skills, with an ability to understand complex architectures and their interactions.Experience collaborating in an open-source or similarly transparent engineering environment is highly valuable.Comfortable participating in peer review processes and both giving and receiving constructive technical feedback.Strong sense of ownership, accountability, and responsibility for delivering high-quality outcomes.Excellent communication skills, including the ability to explain complex technical subjects clearly in plain English.Ability to collaborate effectively with multidisciplinary and geographically distributed teams.Genuine interest in blockchain, decentralized technologies, open-source software, and the future of the internet is desirable.BenefitsFully remote and flexible working environment.Opportunity to work on foundational blockchain infrastructure and open-source technology.Collaboration with experienced engineers and leading minds in the Web3 ecosystem.Opportunity to make a direct impact on widely used decentralized technology.Global, distributed team with an open-source culture centered on collaboration and peer review.Opportunities to meet colleagues throughout the year through team and company-wide retreats.Contractor engagement through a UK-based entity.Inclusive and diverse international working environment.Professional growth opportunities through exposure to complex technical challenges and emerging blockchain technologies.Background checks are conducted through a trusted third-party provider as part of the hiring process.How Jobgether WorksWe use an AI-powered matching process to ensure your application is reviewed quickly, objectively, and fairly against the role's core requirements. Our system identifies the top-fitting candidates, and this shortlist is then shared directly with the hiring company. The final decision and next steps (interviews, assessments) are managed by their internal team.We appreciate your interest and wish you the best! Why Apply Through Jobgether?Data Privacy Notice: By submitting your application, you acknowledge that Jobgether will process your personal data to evaluate your candidacy and share relevant information with the hiring employer. This processing is based on legitimate interest and pre-contractual measures under applicable data protection laws (including GDPR). You may exercise your rights (access, rectification, erasure, objection) at any time.We may use artificial intelligence (AI) tools to support parts of the hiring process, such as reviewing applications, analyzing resumes, or assessing responses and identifying potential inconsistencies or verification signals in application materials based on available information. These tools assist our recruitment team but do not replace human judgment. Final hiring decisions are ultimately made by humans. If you would like more information about how your data is processed, please contact us.