Compiler/PolkaVM Software Engineer
As caretakers of the Polkadot and Substrate ecosystem, Parity is establishing a framework for an improved web that prioritizes individual freedom and data privacy while enabling developers to leverage decentralized technology for enhanced service offerings. The organization advocates for a decentralized internet that safeguards individual rights and empowers developers to create superior services. With a globally-distributed team that operates remotely, Parity is actively developing open-source technologies, including Polkadot, Substrate, and Kusama, for adoption and expansion by developers and businesses.
About the Team
The position is part of the Smart Contracts team, responsible for facilitating smart contract execution on Polkadot. The team deals with a spectrum of software components such as PolkaVM, revive, and the smart contract execution environment within the Polkadot ecosystem.
About the Position
We are seeking Software Engineers to contribute to the ongoing development of PolkaVM and the revive recompiler. Responsibilities include working on a cutting-edge RISC-V based virtual machine, an LLVM-based EVM to RISC-V recompiler, creating comprehensive benchmark suites to assess performance metrics against industry competitors, and integrating these technologies into the smart contract execution environment.
About You
We are looking for individuals with expertise in or a strong interest in areas such as virtual machines, RISC-V, dynamic recompilation, code optimization, low-level memory management, security sandboxing, zero knowledge proof systems, and zero knowledge virtual machines. The successful candidate should be capable of working independently, excel in a collaborative open-source setting, demonstrate ownership of their work, possess strong communication skills, and showcase the ability to present complex concepts in a clear and concise manner.
About Working for Us
Joining our team comes with competitive compensation packages based on market research, including tokens where permissible by law. We offer a remote-first work environment with flexible hours, surrounded by enthusiastic team members passionate about their projects. Employees have the opportunity to engage with thought leaders in the Web3 space, enhancing their skills and knowledge firsthand. Additional benefits include network opportunities, team and company-wide retreats, and the provision of a work laptop. Employees in Germany, Portugal, and the UK enjoy extra benefits such as healthcare, parental leave, generous PTO, and local team events.
Parity is committed to fostering a diverse team and ensuring all employees feel included and valued within our collaborative environment. For further insights regarding your data usage, kindly refer to the Applicant Notice on our website. If this role doesn't align with your skills and aspirations, explore our other available positions on our careers page.
Senior Backend Engineer
We are looking for a Backend Developer to join our remote team. As a key member of the development team, you will be responsible for building and maintaining APIs, handling data management, and integrating with the blockchain and other systems. You’ll work closely with the frontend developers to ensure seamless integration between the backend and the user-facing parts of the platform.
Responsibilities :
API Development: Design, implement, and maintain RESTful APIs to interact with the front-end and blockchain components of the platform.
Database Management: Work with relational databases (e.g., PostgreSQL) and NoSQL databases (e.g., MongoDB) to store and manage user data, property metadata, transactions, and more.
Blockchain Integration: Collaborate with the Smart Contract team to integrate the backend with blockchain technologies like Ethereum and Polygon (Web3 interactions).
Security & Performance: Implement security protocols to ensure platform safety and high performance, including handling user authentication, payment systems, and personal data management.
Collaboration with Frontend: While your focus is backend, a basic understanding of React and frontend development will help you collaborate effectively with the frontend team for API consumption and integration.
Troubleshooting & Debugging: Identify and resolve performance bottlenecks and bugs, improving both the backend and the overall user experience.
Documentation: Write clear and concise documentation for APIs, database structures, and integration processes to ensure smooth team collaboration and future scalability.
Requirements :
5+ years of backend development experience.
Strong knowledge of Node.js and Express.js.
Experience working with PostgreSQL, MongoDB, or other databases.
Familiarity with IPFS or cloud storage solutions is a plus.
Basic knowledge of React.js and frontend development (enough to collaborate effectively with frontend team).
Experience working with Web3 technologies (Ethereum, Polygon, Web3.js, Ethers.js) is preferred but not required.
Understanding of smart contracts and decentralized applications is a plus.
Security: Strong understanding of security best practices, especially in regard to blockchain interactions and user data.
Problem-Solving: Ability to debug, optimize, and troubleshoot complex systems.
Communication: Strong written and verbal communication skills, with the ability to document processes clearly and work in a remote team environment.
Frontend Engineer
We’re looking for a Frontend Developer with a solid foundation in React and modern front-end development. You’ll play a key role in building immersive and intuitive user interfaces for property browsing, token transactions, and 3D environments.
Responsibilities :
Build and maintain responsive web interfaces using React and TypeScript
Integrate with backend APIs and Web3 services (e.g., wallet auth, smart contract interaction)
Work with 3D designers to integrate Three.js models into the user experience
Optimize UI performance for high-load and mobile experiences
Collaborate with backend, blockchain, and AI teams for seamless end-to-end experiences
Contribute to design system and component libraries
Participate in code reviews and agile sprints
Requirements :
5+ years of experience in front-end development
Proficient in React.js, JS/TS, HTML5, CSS3
Familiarity with frontend state management (e.g., Redux, Zustand, or Context API)
Comfortable working with RESTful APIs and/or GraphQL
Basic understanding of Web3 or blockchain wallet integrations (MetaMask, WalletConnect)
Experience with responsive design and cross-browser compatibility
Version control with Git
Mobile Developer
We are looking for a Mobile Developer to help build and optimize the mobile experience for the platform. You will work closely with our product, backend, and design teams to create a performant, secure, and intuitive mobile app that supports real-time 3D property viewing, blockchain interactions, and AI-powered recommendations.
Responsibilities :
Develop and maintain cross-platform mobile applications (iOS and Android)
Integrate with backend APIs and smart contracts (Web3)
Optimize app performance, responsiveness, and security
Collaborate with UI/UX designers to implement immersive and intuitive experiences
Integrate 3D content using tools like Unity, Babylon.js, or Three.js (if mobile-compatible)
Enable wallet connections (e.g., WalletConnect)
Implement features such as property listings, profiles, payments, notifications, etc.
Conduct testing and debugging across multiple devices and OS versions
Participate in code reviews and Agile sprints
Requirements :
5+ years of mobile development experience
Strong proficiency with React Native (preferred) or Flutter
Experience integrating RESTful APIs and Web3 tools (e.g., Ethers.js, WalletConnect)
Familiarity with blockchain wallets and decentralized identity concepts
Basic understanding of React and front-end development
Experience with Firebase, Push Notifications, and payment SDKs
Ability to work with 3D content or ARKit/ARCore is a plus
Experience publishing and maintaining apps in App Store and Google Play
Strong problem-solving and debugging skills
Excellent communication and collaboration in a remote team environment
AI/ML Engineer
We are looking for an experienced AI/ML Engineer to join our team and drive the development of intelligent systems that enhance user personalization, property recommendations, pricing models, and more. You will work across disciplines with frontend, backend, and blockchain engineers to create and deploy real-world AI features in a decentralized ecosystem.
Responsibilities :
Build and deploy machine learning models for property recommendations, price prediction, and user engagement optimization.
Integrate LightFM, LangChain, and OpenAI/LLM frameworks.
Design AI-powered agents, chatbots, and virtual assistants.
Collaborate on feature engineering, data pipelines, and AI service APIs.
Work with frontend developers to display predictive results and recommendations in the UI.
Deploy models using AWS SageMaker or similar infrastructure.
Monitor model performance and continuously improve accuracy and efficiency.
Stay up to date with advancements in GenAI, real estate AI, and MLOps best practices.
Requirements :
5+ years of hands-on AI/ML development experience.
Strong Python skills with frameworks like NumPy, Pandas, Scikit-learn, TensorFlow, or PyTorch.
Experience with recommender systems (e.g., LightFM), NLP, or conversational AI (LangChain).
Familiar with deploying models in cloud environments (preferably AWS SageMaker).
Working knowledge of React and frontend integration basics.
Solid understanding of data preparation, model tuning, and deployment workflows.
Strong problem-solving ability and self-management skills.
Smart Contract & Web3 Developer
We are looking for an experienced Smart Contract & Web3 Developer to join our team. This role is central to the design, development, and deployment of secure and scalable blockchain-based solutions. You will work closely with frontend and backend developers, designers, and product managers to integrate smart contracts into a seamless and immersive user experience for real estate investment and trading.
Responsibilities :
Design, develop, and deploy secure smart contracts on Ethereum or compatible EVM chains (e.g., Polygon).
Build and test tokenization logic for real estate assets using NFTs and ERC standards (e.g., ERC-721, ERC-1155).
Integrate Web3.js/Ethers.js with the frontend (React) and backend services.
Collaborate with designers and frontend developers to enable blockchain-powered UX flows (e.g., wallet login, transactions).
Implement features such as fractional ownership, DAO voting, and rental agreements.
Write unit tests and perform contract audits to ensure security and efficiency.
Manage smart contract deployments and monitor their on-chain performance.
Stay updated on Web3 trends, L2 solutions, and relevant protocols that can enhance the platform.
Requirements :
3-5 years of experience in smart contract development and blockchain technology.
Strong knowledge of Solidity and smart contract best practices.
Familiarity with Ethereum, Polygon, or other EVM-compatible chains.
Experience with Web3 libraries (Web3.js, Ethers.js) and frontend integration.
Basic understanding of frontend development using React and TypeScript.
Experience deploying contracts using tools like Hardhat or Foundry.
Understanding of decentralized storage solutions like IPFS.
Comfort with using blockchain APIs (Alchemy, Infura) and node management.
Good communication skills and ability to collaborate in a cross-functional team.