Senior TypeScript Engineer - Web3js (CET/EST)
Status
Full time
Remote
Compensation is not specified
Role
Frontend Engineer
Description
Building the infrastructure for Web3
ChainSafe is a multi-chain research and development firm specializing in protocol engineering, security audits, cross-chain interoperability and web3 gaming.
Our goal is to advance blockchain technology through open-source innovation, making it more accessible, secure, and sustainable. Since our establishment in 2017, our efforts have consistently pushed the boundaries of what's achievable in the blockchain sector.
ChainSafe has worked on maintaining stable alternative implementations, enhancing functionality, and driving adoption of top protocols like Ethereum, Filecoin, and Polkadot - playing a role in creating and securing over 230 Billion USD in combined value measured by market capitalization of these protocols.
To learn more about ChainSafe, you can look at our GitHub profile.
Here’s what you might want to know before reading on:
- We are at the forefront of blockchain innovation, having initiated significant projects such as spinning up the Goerli network in 2018 and leading the migration of Ethereum to Proof of Work.
- We advocate for public goods as all our work is open-source and widely recognized in the Web3 research community.
- We work with more than 10 blockchain ecosystems and Secure more than $1Bn of transaction volume.
- We lead ecosystem projects like Web3.js, Lodestar, Forest, and Gossamer.
- We are a global, remote-friendly organization that is open to working with contractors.
At ChainSafe, you will be part of a team distributed across 35+ countries, focused on contributing to advancing humanity through open-source and decentralized technology. Joining us provides a unique opportunity for a computer scientist to work with the only company offering cutting-edge open-source innovation across various domains within the blockchain industry. We develop 3 protocol clients, a gaming SDK for unity, a multi-chain bridge, run thousands of nodes for Lido Finance, and collaborate with innovative Web3 startups.
Who we need:
Web3js.org was created by one of the co-founders of Ethereum. We are seeking a passionate and proactive Senior TypeScript Developer who shares our commitment to building open-source software and driving blockchain into mainstream adoption. You will collaborate across multiple Ethereum-focused projects and contribute to your team's success through high-quality code. In your role, you will be the core maintainer of the oldest Web3 library, impacting millions of Ethereum developers.
Responsibilities:
- Actively participate in discussions and contribute to enhancing Web3js.
- Review, audit, and test teammate's code while addressing bugs reported by the community.
- Provide feedback on design decisions and develop compliant, optimized code based on protocol specifications.
- Stay updated with the latest Ethereum Improvement Proposals (EIPs).
Required skills and experience:
- Strong experience in TypeScript programming language (over 5 years).
- Proficiency in debugging, code reviewing, and software development life cycle.
- Hands-on experience in open-source projects.
- Knowledge of best practices, design patterns, and software development principles.
Nice to have:
- Experience in distributed systems, peer-to-peer systems, network programming, or cryptography.
- Experience in maintaining large mono repo codebases and setting up CI/CD pipelines.
- Familiarity with testing frameworks and web bundlers.
- Experience with Ethereum or EVM-compatible blockchains.
- Understanding and application of semver versioning.
Tell us who you are: If you believe you are a suitable fit for this role, please apply, even if you do not fully meet all the requirements. Your previous projects and notable commits are of interest to us.
Hiring Steps:
- Screening call with one of our tech recruiters.
- Technical assignment for debugging evaluation.
- Interview with Web3js project manager.
- Final Technical Interview.
Why Join ChainSafe:
Founded by developers, we are a remote-first company with a global team. We provide opportunities for personal and professional growth, emphasize autonomy, have a results-driven environment, and offer flexible work hours. We value diversity and inclusivity in our team and encourage individuals from underrepresented groups in the tech space to apply.
How to Apply:
Please fill out the Greenhouse application form and ensure that you attach your resume and link your GitHub/Gitlab profile or any software projects you have contributed to.
Skills Required
Chainsafesystems
Website
Not specified
Company size
Not specified
Location
United States
Description
Not specified
Status
SADR B
Founding Technical Partners for Oferli – Elite Web & Mobile Development Team🌐
Remote, USA
Remote, USA
Part time
Remote
I am Sadr, CEO of Oferli. We are building a high-performance, elite technical team, and I am looking for 5 to 10 dedicated founding technical partners to join me in this mission.
The Vision:
Oferli is a 100% decentralized ecosystem. While we are rooted in Web3, our expertise spans across professional web and mobile application development. We are not just another agency; we are crafting the next generation of digital solutions. Our goal is to set a new standard for excellence, transparency, and decentralization.
What I am looking for:
I am building a professional, senior-level "Elite Team." I am looking for partners who are truly passionate about the vision—not just short-term gains. By combining our individual expertise and portfolios, we will establish Oferli’s collective professional reputation.
Requirements:
Proven Expertise: You must be a senior-level professional. Please provide your portfolio showcasing your best work in web and mobile development.
Commitment: This is a founding partnership. We are looking for those who believe in the mission and are ready to tackle complex challenges together.
Professionalism: We operate with high standards. Communication and efficiency are key.
How We Work:
Collaboration: We use professional, secure channels for all communications. Qualified candidates will be contacted via email to be invited to our private workspace on Notion to align on our roadmap and launch our upcoming projects.
Decentralized Operations: We leverage Web3 tools for collaboration and compensation, maintaining a fully decentralized environment.
Growth: We are launching with a core team of at least 5 founding partners, scaling to 10, to deliver high-impact results for our clients.
Application Process:
If you are a senior professional ready to build a world-class, decentralized ecosystem, apply here on LaborX. Qualified candidates will be contacted via email for further professional vetting and onboarding.
Let’s build the future, together.
Sadr B
CEO, Oferli
The Vision:
Oferli is a 100% decentralized ecosystem. While we are rooted in Web3, our expertise spans across professional web and mobile application development. We are not just another agency; we are crafting the next generation of digital solutions. Our goal is to set a new standard for excellence, transparency, and decentralization.
What I am looking for:
I am building a professional, senior-level "Elite Team." I am looking for partners who are truly passionate about the vision—not just short-term gains. By combining our individual expertise and portfolios, we will establish Oferli’s collective professional reputation.
Requirements:
Proven Expertise: You must be a senior-level professional. Please provide your portfolio showcasing your best work in web and mobile development.
Commitment: This is a founding partnership. We are looking for those who believe in the mission and are ready to tackle complex challenges together.
Professionalism: We operate with high standards. Communication and efficiency are key.
How We Work:
Collaboration: We use professional, secure channels for all communications. Qualified candidates will be contacted via email to be invited to our private workspace on Notion to align on our roadmap and launch our upcoming projects.
Decentralized Operations: We leverage Web3 tools for collaboration and compensation, maintaining a fully decentralized environment.
Growth: We are launching with a core team of at least 5 founding partners, scaling to 10, to deliver high-impact results for our clients.
Application Process:
If you are a senior professional ready to build a world-class, decentralized ecosystem, apply here on LaborX. Qualified candidates will be contacted via email for further professional vetting and onboarding.
Let’s build the future, together.
Sadr B
CEO, Oferli
Payment in Crypto
Tommy Gunno
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
CleanSpark
Commercial Operations Associate
Full time
Remote
Job Overview
CleanSpark is seeking a Commercial Operations Associate to support their AI data center projects by overseeing procurement, contract administration, and financial analysis. In this role, you will report to the Senior Manager, Commercial Operations and play a key part in evaluating vendor proposals, analyzing budget discrepancies, addressing commercial issues, and providing recommendations to ensure successful project delivery.
Key Responsibilities
Conduct detailed analysis of project budgets, forecasts, and expenditures, and suggest actions to handle variances.
Evaluate vendor proposals and select suppliers based on factors like cost, terms, timely delivery, and risk assessment.
Engage in negotiations to finalize commercial terms, obtaining necessary approvals.
Review contracts, change orders, and manage commercial risks and vendor-related matters.
Address and resolve any non-routine procurement, invoice, or payment discrepancies as they arise.
Enforce commercial policies and financial controls, escalating issues if necessary, and work towards process improvements.
Develop reports outlining trends, risks, and strategic actions to enhance commercial operations.
Maintain precise records and project data in company systems, ensuring accuracy and completeness.
Collaborate with legal and business partners for contract agreements, vendor onboarding, and approvals.
Work closely with project teams and vendors to handle commercial challenges and support project execution effectively.
Facilitate audits and compliance reviews, offering recommendations for corrective actions.
Undertake other responsibilities as delegated.
The successful candidate for this role will possess professionalism, effective communication skills, and the ability to collaborate well within a team-oriented and inclusive environment.
Required Qualifications
Bachelor's degree in relevant fields like business, finance, construction management, or operations, or equivalent experience.
Two or more years of hands-on experience in commercial operations, procurement, financial analysis, or contract management.
Ability to assess commercial issues independently and provide sound business recommendations.
Proficient in budget analysis, vendor proposal evaluation, and commercial terms review.
Strong judgment in policy application, problem resolution, and understanding of approval processes.
Proficiency in Microsoft Office tools and experience with project or financial systems.
Solid analytical, organizational, and communication skills.
Willingness to travel occasionally based on business requirements.
Preferred Qualifications
Experience in data centers, engineering, construction, energy, or similar capital-intensive industries.
Exposure to vendor negotiations, commercial risk management, change orders, or procurement processes.
This position offers a salary range of $85,000 to $95,000 per year and may involve responsibilities requiring the use of a company vehicle or travel between job sites. Candidates must meet CleanSpark's vehicle insurance policy requirements.
CleanSpark is an Equal Opportunity Employer, providing a discrimination-free workplace. All aspects of employment, including recruitment, promotions, termination, and training, are governed by this policy. AI tools may be utilized in parts of the hiring process.
CleanSpark is seeking a Commercial Operations Associate to support their AI data center projects by overseeing procurement, contract administration, and financial analysis. In this role, you will report to the Senior Manager, Commercial Operations and play a key part in evaluating vendor proposals, analyzing budget discrepancies, addressing commercial issues, and providing recommendations to ensure successful project delivery.
Key Responsibilities
Conduct detailed analysis of project budgets, forecasts, and expenditures, and suggest actions to handle variances.
Evaluate vendor proposals and select suppliers based on factors like cost, terms, timely delivery, and risk assessment.
Engage in negotiations to finalize commercial terms, obtaining necessary approvals.
Review contracts, change orders, and manage commercial risks and vendor-related matters.
Address and resolve any non-routine procurement, invoice, or payment discrepancies as they arise.
Enforce commercial policies and financial controls, escalating issues if necessary, and work towards process improvements.
Develop reports outlining trends, risks, and strategic actions to enhance commercial operations.
Maintain precise records and project data in company systems, ensuring accuracy and completeness.
Collaborate with legal and business partners for contract agreements, vendor onboarding, and approvals.
Work closely with project teams and vendors to handle commercial challenges and support project execution effectively.
Facilitate audits and compliance reviews, offering recommendations for corrective actions.
Undertake other responsibilities as delegated.
The successful candidate for this role will possess professionalism, effective communication skills, and the ability to collaborate well within a team-oriented and inclusive environment.
Required Qualifications
Bachelor's degree in relevant fields like business, finance, construction management, or operations, or equivalent experience.
Two or more years of hands-on experience in commercial operations, procurement, financial analysis, or contract management.
Ability to assess commercial issues independently and provide sound business recommendations.
Proficient in budget analysis, vendor proposal evaluation, and commercial terms review.
Strong judgment in policy application, problem resolution, and understanding of approval processes.
Proficiency in Microsoft Office tools and experience with project or financial systems.
Solid analytical, organizational, and communication skills.
Willingness to travel occasionally based on business requirements.
Preferred Qualifications
Experience in data centers, engineering, construction, energy, or similar capital-intensive industries.
Exposure to vendor negotiations, commercial risk management, change orders, or procurement processes.
This position offers a salary range of $85,000 to $95,000 per year and may involve responsibilities requiring the use of a company vehicle or travel between job sites. Candidates must meet CleanSpark's vehicle insurance policy requirements.
CleanSpark is an Equal Opportunity Employer, providing a discrimination-free workplace. All aspects of employment, including recruitment, promotions, termination, and training, are governed by this policy. AI tools may be utilized in parts of the hiring process.
Nahclimited
Senior Full-Stack Engineer (Go)
Hong Kong
Hong Kong
Full time
Remote
A proprietary trading and research firm is looking for skilled full-stack engineers to contribute to the development of user interfaces and services for critical financial applications. These applications include visual analytics platforms and data-driven tools used by traders, researchers, and analysts. As a part of the team, you will be involved in working on TypeScript front-ends and Go services that support them. The team is transitioning its applications into a modular, plugin-based platform that will be expanded upon by other engineers. You'll be responsible for creating reusable UI modules, component libraries, and SDKs, in addition to developing end-user features. Ownership of your work will be from structured product requirement documentation through to production. No specific trading or finance background is mandatory; the team prioritizes engineering expertise and offers training in the domain.
What You'll Be Doing:
Collaborating with traders, researchers, and product managers to transform complex workflows into sophisticated UI solutions.
Designing and implementing high-performance, responsive front-end applications using current-generation TypeScript frameworks like Svelte, React, or Vue.
Building, operating, and designing Go back-end services with security and performance integrated into their design, overseeing service boundaries and data contracts end-to-end.
Constructing reusable UI components, libraries, and SDKs for a modular, plugin-based platform and connecting front-ends using typed SDKs and MCP-based interfaces.
Developing real-time UIs that process and display high-frequency market and on-chain data from various streaming sources using canvas-based charting and D3.js for unique views.
Guiding architecture and performance decisions for modular, extensible systems, maintaining automated testing and code review processes, and mentoring colleagues in best practices.
Key Requirements:
7+ years of hands-on experience in full-stack development with ownership of production on both the back-end and front-end.
Proficient in current TypeScript, HTML, and CSS along with a modern front-end framework such as Svelte, React, or Vue.
Strong Go experience capable of self-sufficiently designing, building, and operating production Go services.
Demonstrated ability in handling large datasets and real-time updates from back-end sources, constructing well-structured UI components and shared abstractions.
Sound understanding of performance optimization and rendering strategies in data-intensive applications, including the JavaScript runtime.
Thorough testing skills with unit and integration tests forming a standard part of the delivery process.
Excellent cross-functional communication skills along with experience with a major cloud platform and version control systems.
Desirable Skills:
Background or keen interest in trading systems or financial platforms, possibly including prior experience in hedge funds or proprietary trading.
Experience with real-time, streaming, or on-chain/crypto market data.
Knowledge of MCP or other AI-native/agent integration principles.
Experience building developer platforms, SDKs, or shared component libraries. Familiarity with CI/CD, Docker, and observability tools such as Datadog, Grafana, or ELK.
Further details regarding data processing in the context of the hiring process can be requested by contacting us directly.
What You'll Be Doing:
Collaborating with traders, researchers, and product managers to transform complex workflows into sophisticated UI solutions.
Designing and implementing high-performance, responsive front-end applications using current-generation TypeScript frameworks like Svelte, React, or Vue.
Building, operating, and designing Go back-end services with security and performance integrated into their design, overseeing service boundaries and data contracts end-to-end.
Constructing reusable UI components, libraries, and SDKs for a modular, plugin-based platform and connecting front-ends using typed SDKs and MCP-based interfaces.
Developing real-time UIs that process and display high-frequency market and on-chain data from various streaming sources using canvas-based charting and D3.js for unique views.
Guiding architecture and performance decisions for modular, extensible systems, maintaining automated testing and code review processes, and mentoring colleagues in best practices.
Key Requirements:
7+ years of hands-on experience in full-stack development with ownership of production on both the back-end and front-end.
Proficient in current TypeScript, HTML, and CSS along with a modern front-end framework such as Svelte, React, or Vue.
Strong Go experience capable of self-sufficiently designing, building, and operating production Go services.
Demonstrated ability in handling large datasets and real-time updates from back-end sources, constructing well-structured UI components and shared abstractions.
Sound understanding of performance optimization and rendering strategies in data-intensive applications, including the JavaScript runtime.
Thorough testing skills with unit and integration tests forming a standard part of the delivery process.
Excellent cross-functional communication skills along with experience with a major cloud platform and version control systems.
Desirable Skills:
Background or keen interest in trading systems or financial platforms, possibly including prior experience in hedge funds or proprietary trading.
Experience with real-time, streaming, or on-chain/crypto market data.
Knowledge of MCP or other AI-native/agent integration principles.
Experience building developer platforms, SDKs, or shared component libraries. Familiarity with CI/CD, Docker, and observability tools such as Datadog, Grafana, or ELK.
Further details regarding data processing in the context of the hiring process can be requested by contacting us directly.
Nahclimited
E-commerce Operations Manager
Taipei, Taiwan
Taipei, Taiwan
Full time
Hybrid
Our company is seeking a dedicated individual to take on the pivotal role of overseeing operations for our expanding consumer brand in Taiwan. As the lead in this operational role, you will be responsible for managing all aspects of operations single-handedly, as there isn't an established team in place. Your duties will span a wide range of functions, including international import and product certification, logistics management, inventory planning, overseeing the D2C online store, and ensuring top-notch customer experience on a daily basis.
The primary challenge of this role is to establish robust and data-driven operations within a lean structure. This includes enhancing demand forecasting, optimizing inventory turnover, and implementing the much-needed automation and SOPs that are currently lacking in the operations function. Additionally, as the brand diversifies its sales channels, you will be tasked with evaluating warehouse capacity and spearheading cost efficiencies in inventory and logistics.
Responsibilities:
Take charge of demand forecasting and inventory planning across all sales channels, with a focus on improving forecast accuracy, inventory turnover, and allocation efficiency while minimizing stockouts and managing slow-moving stock effectively.
Oversee international ordering, import processes, customs clearance, as well as product inspection and certification tasks like BSMI and NCC applications.
Lead the daily operations of inbound and outbound logistics, which includes managing shipping, receiving inspections, stock movements, and collaborating with 3PL and logistics partners.
Evaluate the need for warehouse relocation or expansion as inventory levels increase, and drive cost-saving initiatives in both inventory management and logistics.
Manage the end-to-end operations of the Shopify back office, which involves maintaining order details, product information, and inventory data.
Attend to customer inquiries on a daily basis and oversee after-sales service, returns, exchanges, and complaints management while developing efficient SOPs, setting KPIs, and implementing automation to enhance operational efficiency.
Requirements:
5–7 years of experience in supply chain, logistics, or e-commerce operations.
Hands-on experience in import, inbound/outbound operations, and inventory management, with the ability to autonomously navigate the full operations process.
Demonstrated proficiency in demand forecasting and inventory management.
Proven track record of managing 3PL partners and external logistics service providers.
Strong skills in Excel and data analysis, enabling you to translate operational data into actionable improvement strategies.
Comfortable with hands-on daily tasks and capable of working independently and proactively within a small team setting.
Proficiency in English, both written and spoken, to facilitate collaboration with overseas headquarters.
Preferred Skills:
Practical experience with the Shopify back office.
Previous involvement in product inspection and certification processes such as BSMI or NCC.
Experience managing multi-channel inventory across platforms like Shopee or momo.
Background in D2C online store management or experience in process optimization, automation initiatives, or SOP development within a startup or small team environment.
The primary challenge of this role is to establish robust and data-driven operations within a lean structure. This includes enhancing demand forecasting, optimizing inventory turnover, and implementing the much-needed automation and SOPs that are currently lacking in the operations function. Additionally, as the brand diversifies its sales channels, you will be tasked with evaluating warehouse capacity and spearheading cost efficiencies in inventory and logistics.
Responsibilities:
Take charge of demand forecasting and inventory planning across all sales channels, with a focus on improving forecast accuracy, inventory turnover, and allocation efficiency while minimizing stockouts and managing slow-moving stock effectively.
Oversee international ordering, import processes, customs clearance, as well as product inspection and certification tasks like BSMI and NCC applications.
Lead the daily operations of inbound and outbound logistics, which includes managing shipping, receiving inspections, stock movements, and collaborating with 3PL and logistics partners.
Evaluate the need for warehouse relocation or expansion as inventory levels increase, and drive cost-saving initiatives in both inventory management and logistics.
Manage the end-to-end operations of the Shopify back office, which involves maintaining order details, product information, and inventory data.
Attend to customer inquiries on a daily basis and oversee after-sales service, returns, exchanges, and complaints management while developing efficient SOPs, setting KPIs, and implementing automation to enhance operational efficiency.
Requirements:
5–7 years of experience in supply chain, logistics, or e-commerce operations.
Hands-on experience in import, inbound/outbound operations, and inventory management, with the ability to autonomously navigate the full operations process.
Demonstrated proficiency in demand forecasting and inventory management.
Proven track record of managing 3PL partners and external logistics service providers.
Strong skills in Excel and data analysis, enabling you to translate operational data into actionable improvement strategies.
Comfortable with hands-on daily tasks and capable of working independently and proactively within a small team setting.
Proficiency in English, both written and spoken, to facilitate collaboration with overseas headquarters.
Preferred Skills:
Practical experience with the Shopify back office.
Previous involvement in product inspection and certification processes such as BSMI or NCC.
Experience managing multi-channel inventory across platforms like Shopee or momo.
Background in D2C online store management or experience in process optimization, automation initiatives, or SOP development within a startup or small team environment.