Open source jobs in crypto and blockchain companies

SORAMITSU is an award-winning global financial technology company with expertise in developing blockchain-based solutions for digital asset and identity management. Our mission is to use blockchain to promote innovation and solve pressing societal challenges.SORAMITSU is the developer of and major contributor to the open-source blockchain platform Hyperledger Iroha, which is tailored for enterprise and public-sector use. Hyperledger Iroha, a project of Hyperledger Foundation, part of the Linux Foundation, has a permissions system that is scalable and performant.Utilizing blockchain, SORAMITSU has developed a digital currency for the National Bank of Cambodia, a CBDC Proof-of-Concept with the Bank of the Lao PDR, a closed-loop payment system for the University of Aizu in Japan, an identity verification system prototype for Bank Central Asia in Indonesia, we were finalists in the Monetary Authority of Singapore CBDC Challenge, and are currently participating in Asia-Pacific's first proof-of-concept test of a cross-border, multi-currency security settlement system using distributed ledger technology with the Asian Development Bank. We have also conducted proof-of-concept tests for several major Japanese enterprises, and are active contributors to open source projects, such as Klaytn, South Korea's leading Layer-1 blockchain, KAGOME, the C++ Polkadot Host implementation, the SORA crypto-economic system, the Polkaswap DEX, and the DeFi wallet, Fearless WalletBased on these experiences, SORAMITSU aims to deploy cutting-edge technology on a global level in order to expedite financial inclusion and health, mitigate economic inefficiencies, and contribute to the fulfilment of the Sustainable Development Goals.You can find out more by visiting our homepage at soramitsu.co.jp or check out our Twitter profile.We are looking for a creative and motivated Web Developer to join our Brand Experience team. In this role, you will be responsible for creating engaging marketing websites, landing pages, and documentation websites for all of our brands and products. The ideal candidate will be passionate about creating engaging, on-brand websites and able to work independently while delivering high-quality results efficiently.You will be responsible for:Create and maintain all marketing and documentation websites for our brands and products.Execute on all phases of the web development process within the Brand Experience team, ensuring mobile and desktop compatibility.Collaborate with Marketing and Product teams to ideate and implement innovative web concepts and solutions.Ensure high-quality visual aesthetics by translating designs into functional websites through code.Develop interactive animated visuals for the web using the latest technologies.Ensure our websites deliver optimal performance across all targeted platforms and browsers.Optimise for SEO and website performance.Assist in the daily duties of the Brand Experience and Marketing teams.Manage your responsibilities autonomously in a remote-first work environment.You need to have:A portfolio showcasing your web development skills, with at least four years of professional experience.Expertise in delivering responsive, high-quality websites using Vue 3 and Nuxt 3, along with full proficiency in HTML/CSS/JS.Experience with Figma and working with design systems.Familiarity with SVG, Canvas, and WebGL visualisation libraries.Proficiency in Git/GitHub.Experience in creating static websites.Familiarity with AI tools and a strong willingness to explore the latest AI solutions to enhance efficiency.A strong general interest in Web3, crypto, and blockchain technologies.Creativity, problem-solving skills, and strong attention to detail.Excellent time management skills, with the ability to meet deadlines and multitask effectively.Ability to handle ambiguity and incomplete information.Ability to take ownership and drive projects to completion.Ability to maintain a positive attitude while giving and receiving constructive criticism with empathy and understanding of diverse perspectives and cultures.Excellent communication skills in EnglishCVs will not be considered without an accompanying portfolio.Would be nice if you had:General experience in Web3, crypto and blockchain-related projects.Personal experience of using cryptocurrencies, and familiarity with decentralised exchanges, wallets, and DeFi protocols.Knowledge and broad understanding of enterprise blockchain solutions, including payment systems and identity systems.Knowledge of meme magic and its relevance in the crypto space.What we offer:A relaxed remote-first (work from anywhere) environment with flexible working hours.A full-time permanent role within a rapidly growing international team.An educational budget to support your growth and development.Opportunities to attend global meetups and conferences for learning and speaking engagements.The opportunity to join an award-winning team designing a better world through decentralised technologies.This is a remote position. Our distributed team is mostly spread across Europe and Asia. Team meetings are held generally during European working hours, and it is expected that you would adapt if necessary and be available accordingly.If you have the required qualifications and are passionate about the Web3 industry, we encourage you to apply for this exciting opportunity.SORAMITSU values diversity and is committed to providing equal opportunities for all applicants and employees. Our employment decisions, such as hiring, promotion, discipline, and termination, are based solely on an individual's qualifications, performance, and business needs. We do not discriminate against anyone on the basis of their race, color, religion, marital status, age, national origin, ancestry, physical or mental disability, medical condition, pregnancy, genetic information, gender, sexual orientation, gender identity or expression, veteran status, or any other protected status under federal, state, or local law.

About us Founded in 2015 with the mission to protect the open economy, OpenZeppelin is the world leader in securing blockchain applications and smart contracts.  Its bedrock open source Contract Libraries are a public good and industry standard for smart contract development. OpenZeppelin’s professional expertise, unified with the Defender developer security platform, integrates through clients’ development lifecycles, so teams can plan, code, audit, deploy and operate projects faster and more safely. Please note: Always refer to OpenZeppelin's official job page for the most accurate information about our open roles, as we have seen multiple third party job sites posting inaccurate information. About the role: OpenZeppelin is seeking an experienced, customer-facing Technical Project Manager with a proven track record of delivering on time to join the Security Research team and take ownership of the entire security audit delivery process.  This person will work closely with other constituencies across the organization including the Sales, Marketing, Operations, and Executive Leadership teams. What you'll be doing: Own and nurture relationships with OpenZeppelin’s client base. Respond to inquiries from existing customers, ensuring client retention and satisfaction. Establish trusted relationships with each client to drive continued value from our products and services. Ensure that clients' technical needs are met and exceeded. Follow up on client interactions to identify and develop new business opportunities. Lead client kick-off meetings and serve as the primary point of contact for all communications throughout the delivery process. Manage scope creep by utilizing a structured change order process, ensuring project scope remains controlled and clearly defined. Evaluate and escalate issues to management as necessary, facilitating prompt and effective resolution. Oversee the entire end-to-end process of client deliveries, including final review and coordination of publishing. Collaborate with Security Research team leaders to manage and ensure quality control throughout the project lifecycle. Monitor team performance against key metrics, such as resource utilization and allocation, to ensure optimal efficiency and project success. Automate and enhance the delivery process using our internal tools (GitHub, Notion, Slack, HubSpot) to improve efficiency and streamline workflows. You have: 5+ years of experience in Technical Project Management, Technical Program Management, Technical Account Management , Solutions Architect or similar roles. An advanced English level and great communication skills (oral and written). Passion about the blockchain space and decentralization. You have a technical background and are comfortable with reviewing code at a high-level for estimation purposes and code management tools (GitHub especially). Superb organization and project management skills with the ability to work on and manage multiple complex projects with many stakeholders at the same time. Excellent interpersonal and communication skills and a demonstrated ability to communicate with clients on both technical and non-technical topics. Advanced knowledge of project management tools and familiar with Notion, Linear and GitHub. Demonstrated experience working with professional services scheduling software. Nice to have: Technical experience with blockchain technologies, Solidity, or cybersecurity. Project management certification (PMP, Scrum Master, etc). Advanced knowledge of GitHub. PMO or other people management experience. Logistics: All positions at OpenZeppelin are 100% remote, however you must be located/able to work in the Americas or European time zones to be considered for this position. Our interview process takes place on Zoom and tends to consist of the following stages: Recruiter Call (45mins) Hiring Manager Call (45mins) PM Team Interview 60mins) Leadership Interview (30mins) Paid work test (Lasting up to 10 days) Reference checks Benefits Company in-person gatherings in different locations around the world 😎 Fully remote work 🌎 Flexible time off 🏝 Paid parental leave for primary or second caregiver 💙 One time work-from-home equipment stipend of up to $500 USD 🪑 Co-working (up to $250/month) 👩‍💻 Medical coverage Annual Learning & Development budget 🧠 Referral program Work with a global team in a fast-growing industry 🚀 At OpenZeppelin, we are an equal opportunity employer and we value different perspectives. We are committed to building a diverse workforce. This includes but is not limited to gender, race, sexual orientation, religion, national origin and other characteristics that make each one of us unique. In this uniqueness, we find the most value. Come join us!  

Bishop Fox is the leading authority in offensive security, providing solutions ranging from continuous penetration testing, red teaming, and attack surface management to product, cloud, and application security assessments. We’ve worked with more than a quarter of the Fortune 100, half of the Fortune 10, eight of the top 10 global technology companies, and all of the top global media companies. Our Cosmos platform, service innovation, and culture of excellence continue to gather accolades from industry award programs including Fast Company, Inc., SC Media, and others. For more than 16 years, we've been contributing and giving back to the security community. We’ve published more than 16 open source tools and 50 security advisories in the last five years alone. Learn more at bishopfox.com or follow us on social media.  We’re looking for talented, experienced professional hackers to help us secure some of the world’s most complex software and sophisticated technologies. You’ll be working alongside our Mexico, US, and other internationally-based teams supporting clients across multiple industries.                                                    Responsibilities You’re a penetration tester who knows their way around source code. You’ve plundered apps and pillaged networks (legally, of course). You have a passion for hacking and information security. You may also have written a few blog posts about your favorite hacks or have presented at a handful of conferences – with an eye to doing more. With Bishop Fox, your responsibilities would include testing web applications, hacking networks, and reversing software. As a consultant, you’ll work on a variety of projects which include short-term engagements and extended program work with well-established clients. You'll solve challenging technical problems and build creative solutions. As a trusted advisor, you’ll provide your expert opinion to help our clients navigate difficult business decisions.         Requirements 7+ years experience in planning, conducting, and managing web application penetration tests 5+ years of application security experience Deep understanding of security fundamentals (OWASP), common vulnerabilities, and application security best practices Skilled in vulnerability assessment and the development of exploits for diverse targets Background in system and network security, authentication and security protocols, and applied cryptography is helpful Experience with programming and scripting languages such as Python, Ruby, PowerShell, Java, JavaScript, etc. Experience with AWS cloud environments preferred with an understanding of its major technologies, such as IAM, EC2, VPC, EBS, S3, CloudWatch, and Lambdas, and how to keep them secure Proficiency with operating systems- Linux, Windows, MacOS Experience with network and system exploitation including modern tactics, techniques, and procedures (e.g. c2 frameworks, EDR bypass, privilege escalation, password cracking, lateral movement, etc.) Strong technical reporting and documentation skills Advanced relevant academic training, such as a degree in Computer Science or an OSCP, is a definite bonus Bishop Fox has always allowed its employees to work remotely, and this role could work anywhere in Mexico. Our comprehensive benefits program is tailored to meet your needs. We embrace diversity and an inclusive culture. We value our employees and who they are, which fosters a powerful and collective talent base to successfully serve our clients and the security community with unparalleled expertise.  Bishop Fox is an Equal Opportunity employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex including sexual orientation and gender identity, national origin, disability, protected veteran status, or any other characteristic protected by applicable federal, state, or local law.  All new hires must pass a background check as a condition of employment. Interested? Apply today!