Staff Front-end Engineer (f/m)
Status
Paris, France
Full time
Hybrid
Compensation is not specified
Role
Frontend Engineer
Description
We are dedicated to democratizing access to digital assets and ensuring their security on a global scale. Ledger, established in 2014, serves as a leading platform for digital assets and Web3 technology. Our Ledger Nanos are responsible for safeguarding over 20% of the world's crypto assets. With headquarters in Paris and Vierzon, we also have operational bases in the UK, US, Switzerland, and Singapore, boasting a diverse team exceeding 700 professionals. Ledger innovates a range of products and services that empower individuals and businesses to securely transact, store, exchange, expand, and manage crypto assets. One of our core offerings is the Ledger hardware wallets which have already captured a market of over 7 million units across 200 countries.
At Ledger, we espouse the values of Pragmatism, Audacity, Commitment, Trust, and Transparency, shaping a dynamic work environment for our team members. Achieve insight into our company culture by listening to testimonials from our staff.
Ledger has introduced Ledger Live, an application designed for managing blockchain-based assets. Developed using React.js technology, this application avails support for multiple blockchains, including coins and NFTs. Additionally, it facilitates integration with DApps and offers an SDK for seamless collaboration with third parties. The interface, backed by our hardware wallets, allows users to efficiently manage their crypto assets. Various dedicated teams collaboratively work on distinct aspects of this software application.
In line with our ambitious growth plans, we are seeking a Staff Front-End Engineer to join the Wallet Experience business unit. Operating within the Live Hub squad, your central responsibilities will revolve around constructing and upkeeping the UI flows for portfolio and account management.
Main Responsibilities:
- Embrace full ownership of desktop and mobile Ledger Live Applications development from a technical viewpoint.
- Engage in active collaboration with developers, QA specialists, designers, and product professionals within the Ledger Live teams.
- Demonstrate initiative by proposing and implementing technical solutions.
- Develop features employing best practices encompassing unit to end-to-end testing methodologies.
- Participate in conducting thorough code reviews.
- Uphold the quality standards of Ledger's UI/UX framework.
- Foster mentorship opportunities and drive technological progress within the team, ensuring the establishment of high standards.
- Devote your efforts entirely to Open Source projects accessible through our monorepo.
Required Skills:
- A seasoned software development professional with a minimum of 10 years of relevant experience.
- A naturally inquisitive mindset coupled with a positive attitude conducive to team collaboration.
- Strong competence in JavaScript and TypeScript.
- Proficiency in [React.js] development, along with a knack for navigating development tools and libraries.
- Sound understanding of effective testing strategies.
- Good knowledge of UI/UX practices intertwined with software development.
Desirable Skills:
- Familiarity with React Native and Electron.
- Exposure to Web3 topics and technical stack.
- Prior experience managing a repository of shared components.
Benefits Include:
- Equity options to align employees with the company's growth trajectory.
- Hybrid work policy offering flexibility.
- Organized company events and casual social gatherings.
- Comprehensive health insurance coverage, including medical, dental, and vision care.
- Facilities for personal development, coaching, and fitness programs.
- Generous annual paid leave, in addition to national holidays and RTT days.
- Access to premium office equipment and high-quality gadgets.
- Transport reimbursement scheme for preferred modes of commuting.
- Employee discount available on our range of products.
We uphold our commitment to being an equal opportunity employer, fostering a inclusive workplace environment devoid of discrimination based on gender, ethnicity, religion, sexual orientation, social status, disability, or age.
Skills Required
Ledger
Website
www.ledger.comCompany size
Not specified
Location
United States
Description
Not specified
Status
Peeter Luik
Software Developer
Part time
Remote
I’m actively looking for a native Russian speaker who can expertly conduct or participate in job interviews—especially those requiring strong communication, technical understanding, and professional presence. This person should feel at ease discussing software engineering, or related topics, while also being able to assess a candidate’s clarity, depth, and overall fit. If you’re a fluent Russian speaker with the confidence and experience to shine in a technical interview setting, I’d be excited to connect and explore the opportunity with you.
Payment in Crypto
Gabenius
Full-time Hackintosh iOS development
Full time
Hybrid
We are currently seeking a skilled professional to join our team as a Full-time Hackintosh iOS Developer. In this role, you will be responsible for developing iOS applications for our Hackintosh platform. The ideal candidate will have a strong background in Web, Mobile, and Software Development, Engineering & Architecture, Customer Service, and Accounting and Consulting Specialist.
Responsibilities:
- Designing, developing, and implementing iOS applications for our Hackintosh platform
- Collaborating with cross-functional teams to define, design, and ship new features
- Troubleshooting application bugs and implementing solutions
- Ensuring the performance, quality, and responsiveness of applications
- Staying up-to-date with the latest industry trends and technologies
- Providing technical support and guidance to users as needed
Requirements:
- Proven work experience as an iOS Developer or similar role
- Proficient in Objective-C, Swift, and Xcode
- Strong understanding of iOS development best practices
- Excellent problem-solving skills
- Ability to work independently and as part of a team
- Strong communication and interpersonal skills
- Knowledge in web, mobile, and software development, engineering & architecture, customer service, and accounting and consulting specialist
If you are passionate about iOS development and eager to work on innovative projects in the Hackintosh space, we'd love to hear from you. Please apply with your resume and portfolio to be considered for this exciting opportunity.
Responsibilities:
- Designing, developing, and implementing iOS applications for our Hackintosh platform
- Collaborating with cross-functional teams to define, design, and ship new features
- Troubleshooting application bugs and implementing solutions
- Ensuring the performance, quality, and responsiveness of applications
- Staying up-to-date with the latest industry trends and technologies
- Providing technical support and guidance to users as needed
Requirements:
- Proven work experience as an iOS Developer or similar role
- Proficient in Objective-C, Swift, and Xcode
- Strong understanding of iOS development best practices
- Excellent problem-solving skills
- Ability to work independently and as part of a team
- Strong communication and interpersonal skills
- Knowledge in web, mobile, and software development, engineering & architecture, customer service, and accounting and consulting specialist
If you are passionate about iOS development and eager to work on innovative projects in the Hackintosh space, we'd love to hear from you. Please apply with your resume and portfolio to be considered for this exciting opportunity.
Payment in Crypto
Nahclimited
Software Engineer
Hong Kong
Hong Kong
Full time
Office
Our client is a prominent developer of body motion video games for their proprietary device, and they are presently in search of a Software Engineer to lead the design and implementation of high-performance systems that govern sensing, detection, and inference for cutting-edge interactive products.
You will be responsible for setting the technical direction of fundamental platform layers that are integral to real-time multimodal systems.
Responsibilities:
Create efficient, cross-platform software frameworks supporting detection, sensing, haptics, and ML inference.
Design effective runtime execution systems and hardware abstraction layers to ensure low latency and high reliability.
Develop developer-friendly APIs for leveraging core platform capabilities.
Optimize camera, microphone, and haptics pipelines for seamless support of multimodal data streams.
Work with real-time data to ensure the frameworks run smoothly on diverse hardware configurations.
Requirements:
Minimum of 3 years' experience in building frameworks, performance-centric applications, or cross-platform systems.
Proficiency in C++/C#, along with proficiency in at least one other systems language such as Java, Rust, or Go.
Demonstrated experience in real-time systems development and optimizing code for high performance.
Experience in hardware abstraction and creating APIs for consumption by other engineering teams.
Preferred Qualifications:
Background in computer vision, embedded systems, signal processing, low-latency software, or CI/CD infrastructure for high-performance codebases.
You will be responsible for setting the technical direction of fundamental platform layers that are integral to real-time multimodal systems.
Responsibilities:
Create efficient, cross-platform software frameworks supporting detection, sensing, haptics, and ML inference.
Design effective runtime execution systems and hardware abstraction layers to ensure low latency and high reliability.
Develop developer-friendly APIs for leveraging core platform capabilities.
Optimize camera, microphone, and haptics pipelines for seamless support of multimodal data streams.
Work with real-time data to ensure the frameworks run smoothly on diverse hardware configurations.
Requirements:
Minimum of 3 years' experience in building frameworks, performance-centric applications, or cross-platform systems.
Proficiency in C++/C#, along with proficiency in at least one other systems language such as Java, Rust, or Go.
Demonstrated experience in real-time systems development and optimizing code for high performance.
Experience in hardware abstraction and creating APIs for consumption by other engineering teams.
Preferred Qualifications:
Background in computer vision, embedded systems, signal processing, low-latency software, or CI/CD infrastructure for high-performance codebases.
animocabrandslimited@laborx.com animocabrandslimited@laborx.com
Full Stack Engineer (Web3 focused)
Hong Kong
Hong Kong
Full time
Office
Animoca Brands Corporation Limited is a pioneering company in the Web3 space, utilizing tokenization and blockchain technology to bring digital property rights to consumers and contribute to the development of the open metaverse. Their mission is executed through three core business areas: operating Web3 ventures such as Moca Network, Anichess, The Sandbox, Open Campus, NEOM Web3 initiatives, and a regulated stablecoin project; offering digital asset advisory services like tokenomics consultancy and liquidity provision; and managing investments in over 540 companies, including top industry players.
We are seeking a talented Full Stack Engineer to join our team dedicated to shaping a decentralized future. In this role, you will play a crucial part in building innovative applications that connect traditional web experiences with blockchain technology seamlessly.
As a Full Stack Engineer, you will be responsible for developing decentralized applications (dApps) across the entire Animoca Brands ecosystem. This involves creating user-friendly interfaces, designing robust backend services, and ensuring strong integration with the EVM ecosystem.
Responsibilities
Web3 Integration: Design and implement scalable frontend interfaces that interact smoothly with blockchain technology utilizing libraries like Ethers.js, Viem, or Web3.js.
Backend Architecture: Develop and maintain high-performing APIs and microservices (Node.js/TypeScript) to support our range of games and platforms.
Security Focus: Implement and uphold stringent security standards across the tech stack to mitigate common Web3 vulnerabilities.
EVM Expertise: Dive deep into the EVM ecosystem, managing transaction processes, gas optimizations, and interactions with various Layer 2 solutions.
Collaboration: Work closely with product managers, UI/UX designers, and smart contract engineers to translate complex blockchain concepts into user-friendly products.
Qualifications
Blockchain Proficiency: Thorough understanding of EVM functionality, including providers, signers, transaction broadcasting, and blockchain data indexing.
Full-Stack Security: Experience securing Web3 applications, familiarity with OWASP Top 10, and security patterns for decentralized interfaces.
Modern Frontend Skills: Proficiency in React.js or Next.js and TypeScript for building performant state-driven applications.
Robust Backend Knowledge: Strong background in Node.js and relational or NoSQL databases.
Preferred Qualifications
Smart Contract Development: Hands-on experience in writing, testing, and deploying Solidity contracts via tools like Hardhat or Foundry.
DeFi/NFT Awareness: Knowledge of ERC-20, ERC-721, and ERC-1155 standards.
Infrastructure Expertise: Familiarity with Docker, Kubernetes, or cloud services like AWS.
Why Join Animoca Brands?
Diverse and Inclusive Workplace: Thrive in a vibrant, multi-cultural setting with colleagues from various backgrounds.
Web3 Incentives: Grow alongside innovative projects and play a significant role in the future.
Direct Impact and Open Structure: Your input matters; our flat organizational structure ensures rapid idea implementation.
Comfortable Environment: Enjoy a relaxed and productive work atmosphere with a casual dress code.
Cross-Project Opportunities: Collaborate with subsidiary brands across the network, gaining exposure to diverse projects and technologies.
Comprehensive Benefits: Benefit from a range of comprehensive packages including medical, life, and transportation allowances.
We are seeking a talented Full Stack Engineer to join our team dedicated to shaping a decentralized future. In this role, you will play a crucial part in building innovative applications that connect traditional web experiences with blockchain technology seamlessly.
As a Full Stack Engineer, you will be responsible for developing decentralized applications (dApps) across the entire Animoca Brands ecosystem. This involves creating user-friendly interfaces, designing robust backend services, and ensuring strong integration with the EVM ecosystem.
Responsibilities
Web3 Integration: Design and implement scalable frontend interfaces that interact smoothly with blockchain technology utilizing libraries like Ethers.js, Viem, or Web3.js.
Backend Architecture: Develop and maintain high-performing APIs and microservices (Node.js/TypeScript) to support our range of games and platforms.
Security Focus: Implement and uphold stringent security standards across the tech stack to mitigate common Web3 vulnerabilities.
EVM Expertise: Dive deep into the EVM ecosystem, managing transaction processes, gas optimizations, and interactions with various Layer 2 solutions.
Collaboration: Work closely with product managers, UI/UX designers, and smart contract engineers to translate complex blockchain concepts into user-friendly products.
Qualifications
Blockchain Proficiency: Thorough understanding of EVM functionality, including providers, signers, transaction broadcasting, and blockchain data indexing.
Full-Stack Security: Experience securing Web3 applications, familiarity with OWASP Top 10, and security patterns for decentralized interfaces.
Modern Frontend Skills: Proficiency in React.js or Next.js and TypeScript for building performant state-driven applications.
Robust Backend Knowledge: Strong background in Node.js and relational or NoSQL databases.
Preferred Qualifications
Smart Contract Development: Hands-on experience in writing, testing, and deploying Solidity contracts via tools like Hardhat or Foundry.
DeFi/NFT Awareness: Knowledge of ERC-20, ERC-721, and ERC-1155 standards.
Infrastructure Expertise: Familiarity with Docker, Kubernetes, or cloud services like AWS.
Why Join Animoca Brands?
Diverse and Inclusive Workplace: Thrive in a vibrant, multi-cultural setting with colleagues from various backgrounds.
Web3 Incentives: Grow alongside innovative projects and play a significant role in the future.
Direct Impact and Open Structure: Your input matters; our flat organizational structure ensures rapid idea implementation.
Comfortable Environment: Enjoy a relaxed and productive work atmosphere with a casual dress code.
Cross-Project Opportunities: Collaborate with subsidiary brands across the network, gaining exposure to diverse projects and technologies.
Comprehensive Benefits: Benefit from a range of comprehensive packages including medical, life, and transportation allowances.
Jitolabs
Senior Systems Engineer - Performance
USA
USA
Full time
Remote
Company Overview
Jito Labs specializes in creating cutting-edge high-performance distributed systems on the Solana platform. Our team is renowned for developing Jito-Solana, a premier MEV Solana client, and the groundbreaking Jito Block Engine, which has significantly improved block building on Solana, resulting in approximately 4.5 million SOL rewards for validators and stakers in the last year.
We are excited to introduce BAM, our latest product that aims to redefine Solana's market structure and transaction supply chain by prioritizing performance, reliability, and transaction privacy.
Why Choose Jito
High ownership: Take the lead in making crucial technical decisions and shaping product direction.
Fast execution: Embrace rapid shipping and iterative improvements based on real-world feedback.
Technical excellence: Tackle complex challenges with elegant solutions.
Sustainability: Our strong financial position allows us to focus on long-term impact rather than runway concerns.
Position Overview
We are currently looking for an experienced Senior Systems Engineer to join our core team. In this role, you will play a pivotal part in constructing crucial, cutting-edge infrastructure for the Solana ecosystem. You will have the opportunity to explore uncharted technical territories and devise innovative solutions across various aspects of our stack.
Systems & Infrastructure Engineering
Design and maintain high-performance Linux systems for transaction processing and block building.
Utilize virtualization and isolation technologies (KVM, QEMU, TEEs).
Debug and enhance the interaction between user-space systems and the Linux kernel.
Analyze CPU performance, memory management, I/O operations, and scheduling under real-world workloads.
Performance Engineering
Develop high-performance systems for processing and analyzing on-chain data.
Optimize critical pathways within our infrastructure and Solana core (Agave & Firedancer) to reduce latency and boost throughput.
Create new tools for monitoring and enhancing network efficiency.
Enhance system reliability through thoughtful design, observability, and fault isolation.
Contribute performance enhancements upstream (Solana / OS / QEMU components).
Requirements
Minimum 5 years of systems-level programming in C, C++, or Rust with proficiency in Rust.
Extensive experience in Linux systems engineering and performance-critical infrastructure.
In-depth knowledge of profiling and tracing tools such as perf, flamegraphs, and eBPF.
Experience in debugging network performance using tools like tcpdump, Wireshark, and packet capture analysis.
Familiarity with CPU microarchitecture considerations including cache behavior, branch prediction, and NUMA.
Demonstrated ability to delve into complex systems to identify and resolve issues accurately.
Strong communication skills.
Strongly Preferred
Experience in HFT, market-making, or ultra-low-latency trading systems.
Background in virtualization, hypervisors, TEE development.
Prior work involving the kernel or embedded systems.
Familiarity with Solana or blockchain infrastructure.
SALARY: $200,000 - $230,000 per year (Salary offered will be based on experience)
Additional Benefits:
Competitive compensation with multiple forms of equity.
100% employer-paid health benefits.
All-expenses-paid team retreats and conference opportunities.
Weekly meal voucher.
Jito Labs specializes in creating cutting-edge high-performance distributed systems on the Solana platform. Our team is renowned for developing Jito-Solana, a premier MEV Solana client, and the groundbreaking Jito Block Engine, which has significantly improved block building on Solana, resulting in approximately 4.5 million SOL rewards for validators and stakers in the last year.
We are excited to introduce BAM, our latest product that aims to redefine Solana's market structure and transaction supply chain by prioritizing performance, reliability, and transaction privacy.
Why Choose Jito
High ownership: Take the lead in making crucial technical decisions and shaping product direction.
Fast execution: Embrace rapid shipping and iterative improvements based on real-world feedback.
Technical excellence: Tackle complex challenges with elegant solutions.
Sustainability: Our strong financial position allows us to focus on long-term impact rather than runway concerns.
Position Overview
We are currently looking for an experienced Senior Systems Engineer to join our core team. In this role, you will play a pivotal part in constructing crucial, cutting-edge infrastructure for the Solana ecosystem. You will have the opportunity to explore uncharted technical territories and devise innovative solutions across various aspects of our stack.
Systems & Infrastructure Engineering
Design and maintain high-performance Linux systems for transaction processing and block building.
Utilize virtualization and isolation technologies (KVM, QEMU, TEEs).
Debug and enhance the interaction between user-space systems and the Linux kernel.
Analyze CPU performance, memory management, I/O operations, and scheduling under real-world workloads.
Performance Engineering
Develop high-performance systems for processing and analyzing on-chain data.
Optimize critical pathways within our infrastructure and Solana core (Agave & Firedancer) to reduce latency and boost throughput.
Create new tools for monitoring and enhancing network efficiency.
Enhance system reliability through thoughtful design, observability, and fault isolation.
Contribute performance enhancements upstream (Solana / OS / QEMU components).
Requirements
Minimum 5 years of systems-level programming in C, C++, or Rust with proficiency in Rust.
Extensive experience in Linux systems engineering and performance-critical infrastructure.
In-depth knowledge of profiling and tracing tools such as perf, flamegraphs, and eBPF.
Experience in debugging network performance using tools like tcpdump, Wireshark, and packet capture analysis.
Familiarity with CPU microarchitecture considerations including cache behavior, branch prediction, and NUMA.
Demonstrated ability to delve into complex systems to identify and resolve issues accurately.
Strong communication skills.
Strongly Preferred
Experience in HFT, market-making, or ultra-low-latency trading systems.
Background in virtualization, hypervisors, TEE development.
Prior work involving the kernel or embedded systems.
Familiarity with Solana or blockchain infrastructure.
SALARY: $200,000 - $230,000 per year (Salary offered will be based on experience)
Additional Benefits:
Competitive compensation with multiple forms of equity.
100% employer-paid health benefits.
All-expenses-paid team retreats and conference opportunities.
Weekly meal voucher.