Senior Software Engineer (Confirmations - System)
About Us:
Our mission is to make Web3 universally accessible, user-friendly, and developer-friendly, unlocking the collaborative power of communities. Joining ConsenSys means you'll be at the forefront of an evolving paradigm, working to transform society for the better. We believe that blockchain is the next-generation technology capable of laying the foundation for a more equitable world.
Although blockchain technology is just over a decade old, and Ethereum is still in its early stages, we're far from realizing their full potential. By working with us, you'll have the opportunity to contribute to the tools, infrastructure, and applications that will scale these platforms to serve billions of users. You'll also be part of a dynamic network of entrepreneurs and technologists, where ConsenSys alumni have gone on to become tech entrepreneurs, CEOs, and team leads at various tech companies.
About MetaMask:
Our goal at MetaMask is to build a future where the internet and the global economy empower people through consent, privacy, and free association, fostering prosperity for both communities and individuals. To achieve this, we're dedicated to making Web3 accessible to people worldwide.
MetaMask serves as both a crypto wallet and a gateway to the decentralized web. Our tools enable users to create communities, play video games, access financial services, make payments, invest in assets, and protect against economic instability. Our browser extension and mobile platforms cater to millions of users and developers worldwide.
Initially a humble key manager, MetaMask has evolved to serve over 30 million monthly active users as a decentralized application development platform, a hub for decentralized cryptocurrency exchanges, and a decentralized identity manager.
What You'll Do:
We are in search of a talented Senior Software Engineer to join our team, focusing on the development and maintenance of confirmation functionality across both our Extension and Mobile App. This role is critical in ensuring the seamless execution of transactions, signatures, and other vital operations within our wallet. Your responsibilities will include:
- Collaborating closely with other engineers and product stakeholders to define requirements and deliver high-quality solutions.
- Developing robust and scalable solutions for confirmations and related functionalities on both the Extension and Mobile App.
- Writing clean, efficient, and well-documented code, adhering to best practices and coding standards.
- Conducting thorough code reviews and providing constructive feedback to maintain code quality and uphold high standards.
What We're Looking For:
- 5+ years of experience as a Software Engineer.
- Strong JavaScript and TypeScript skills and advanced proficiency in React.
- Excellent problem-solving skills and the ability to work independently or as part of a team.
- Strong communication skills (both written and verbal) in English, with the ability to collaborate with cross-functional teams.
- High-quality and testing standards.
- Experience collaborating with Product Managers, Designers, and QA Engineers.
- Understanding of Ethereum and the blockchain ecosystem.
- Enthusiasm for continual learning and interest in blockchain technologies.
- Experience working in a CI/CD setup.
Don't Meet All the Requirements? No Problem!
We're committed to building a diverse team and encourage you to apply even if you don't meet every requirement. If you believe you have the potential to thrive in our dynamic, remote-friendly startup environment, please apply and detail your relevant transferable skills in your cover letter. We're open to reevaluating our expectations for this role.
Compensation:
For US-based candidates, the salary range (excluding bonus, equity, or other benefits) will be determined during the interview process. Anticipate a base salary ranging from $122,000 to $247,000 USD.
ConsenSys is dedicated to equal opportunity employment, welcoming individuals from all backgrounds. We are committed to ensuring technology accessibility for everyone. Employment decisions are made without regard to race, color, national origin, ancestry, sex, gender, gender identity or expression, sexual orientation, age, genetic information, religion, disability, medical condition, pregnancy, marital status, family status, veteran status, or any other characteristic protected by law.
To protect yourself, please review our best practices guide to avoid fraudulent recruitment practices: Best Practices to Avoid Recruitment Fraud.
Chief Technology Officer (Japanese Speaking)
Bitcastle is a cryptocurrency exchange platform which aims to create a new age of exchange where everyone can use it safely and have fun. As we expand and take a more active approach to global expansion, bitcastle is looking to hire a Full-Time Japanese speaking Chief Technology Officer to lead our engineering team.As frequent communication with Japan and Vietnam entities is required, this role will require Japanese language proficiency and will be fully remote at the moment.
– Formulate strategy and establish the technical vision for the business
– Preparation of specifications and design documents for product development
– Project management of the development process, including quality control
– Define and refine engineering workflows, tech architecture and infrastructure
– Build, develop, lead a world class engineering team
Requirements:
– Experience as a CTO or in a similar technology leadership role in cryptocurrency exchanges or brokerage firms.
– Strong leadership capabilities – with proven success of building, developing and leading an engineering team
– Experience in development using Python, PHP and NodeJS
– Project management experience
– Business level English
– Business level Japanese language skills (JLPT N2 and above) to communicate with Japan and Vietnam entity without need for translator
Ideal Candidate:
– Has project management experience
– Has experience as CTO or similar role in a startup
– Knowledge and interest in cryptocurrency
Project Frameworks and Languages:
– Backend: nestJS(Node JS), Laravel (PHP),Python
– Database: Redis, My SQL
– Frontend: Vue JS
– Mobile: React Native, Android Native, Swift
– DevOps: Git, CI/CD, Docker, Jenkins, GitLabCD
– Cloud: AWS
Web3 Gaming Platform Development Team
A fastest growing Blockchain company is looking to create a decentralized gaming platform that empowers players and developers alike. We are currently seeking to build a talented team to bring their vision to life.
Position Overview
We are looking for skilled professionals to join our development team for a Web3 gaming platform. The ideal candidates will be passionate about blockchain technology and gaming, and possess the expertise to contribute to various aspects of our project. We are hiring for the following roles:
1. Frontend Developers
Responsibilities: Design and implement user interfaces for the gaming platform using modern frameworks (e.g., React, Vue.js). Collaborate with UX/UI designers to create engaging and intuitive user experiences.
Qualifications: Proficiency in HTML, CSS, JavaScript, and relevant frameworks. Experience with Web3 technologies is a plus.
2. Backend Developers
Responsibilities: Develop and maintain server-side logic, database management, and API integration. Ensure the platform's performance, security, and scalability.
Qualifications: Strong knowledge of Node.js, databases (e.g., MongoDB, PostgreSQL), and experience with cloud services. Familiarity with blockchain technology is advantageous.
3. Blockchain Developers
Responsibilities: Design and implement smart contracts, manage blockchain integrations, and ensure the security of decentralized applications. Collaborate with the team to optimize blockchain performance.
Qualifications: Expertise in Solidity, JavaScript, Rust, or Python. Experience with Ethereum and other blockchain platforms is essential.
4. Technical Leader
Responsibilities: Oversee the technical direction of the project, mentor team members, and ensure best practices in development. Collaborate with stakeholders to align technical goals with business objectives.
Qualifications: Proven experience in leading development teams, strong problem-solving skills, and a deep understanding of blockchain technologies.
5. Project Manager
Responsibilities: Manage project timelines, resources, and deliverables. Facilitate communication between team members and stakeholders, ensuring that the project stays on track and within budget.
Qualifications: Strong organizational and leadership skills, experience in project management methodologies (Agile, Scrum), and familiarity with the gaming and blockchain industries.
What We Offer
Competitive salaries and benefits
A dynamic and collaborative work environment
Opportunities for professional growth and development
The chance to be part of an innovative project that shapes the future of gaming
How to Apply
If you are passionate about gaming and blockchain technology and are excited to contribute to a groundbreaking project, we would love to hear from you! Please submit your resume and a cover letter detailing your relevant experience and why you would be a great fit for our team.
Join us in creating the next generation of gaming experiences!
Project Manager / Coordinator
Our team is already working on our first product, and we need someone to help organize workflows, tasks, and team communication.
Responsibilities:
🔹 Manage task boards (Trello/ClickUp) and monitor progress
🔹 Assign tasks to SEO, designers, researchers, copywriters
🔹 Help the founder plan weekly/monthly sprints
🔹 Track deadlines and team priorities
🔹 Coordinate communication via Discord/Telegram
🔹 Maintain documentation and workflows in Notion
Format:
🔸 Remote
🔸 Part-time (5–10 hrs/week)
🔸 Initially unpaid (pre-revenue), with transition to paid/fixed/percentage model
🔸 Flexible hours, informal startup environment
🔸 Opportunity to grow into a full Product Manager role
Requirements:
Experience in coordinating small teams or organizing workflows
Familiar with Trello, Notion, ClickUp, or similar tools
Strong communication and self-management skills
Bonus: basic understanding of SEO/digital projects
English: able to read and write messages
SEO Specialist
We already have our first product live and are preparing to scale.
Responsibilities:
🔹 Keyword research
🔹 On-page optimization for UK market
🔹 SEO briefs for copywriters
🔹 Performance tracking via Search Console, Ahrefs
Format:
🔸 Remote
🔸 Part-time
🔸 Unpaid during pre-revenue stage, with transition to paid once monetized
Requirements:
Solid understanding of SEO basics (on-page, off-page, technical)
Experience with tools like Google Search Console, Ahrefs, or similar
Ability to perform keyword research and cluster keywords
Skills in optimizing meta tags, headings, and website structure
Basic knowledge of Google algorithms and ranking factors
Experience with English-language websites or willingness to learn
Ability to work independently and manage your own time
English level: able to understand search queries and work with keyword data