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Our client builds an Ethereum-compatible network with increased scaling and lower transactions costs.

Your main responsibility is to help our developers to assure the quality of the Engine and the Bridge

Requirements

• General testing and QA skills, including the ability to write automated tests.
• Basic JavaScript knowledge.
• Basic Blockchain knowledge.
• Fluent in written and spoken English.

Will be a plus

• Basic Rust knowledge.

Common Skills

• Clear ability and willingness to hustle and get things done.
• Self-motivated.
• Ownership mentality - ability to take extreme ownership and full responsibility of the tasks and projects.
• Fast learner & natural curiosity.
• Passionate about blockchain technology.

Our client is looking for a talented and productive Blockchain Engineer to join the Bridge team. The Bridge team is responsible for developing the bridge, its related services, and infrastructure that connects Ethereum and other ecosystems together.

This is a full-time position that can be done remotely anywhere in the world.

Qualifications

• Exceptional ability to keep things organized during the development of complex projects with a distributed team
• Proficiency in Rust/Go/C++ or other systems programming languages
• Excellent coding skills with JS/TS or other scripting languages
• Deep understanding of Blockchain technology and Ethereum in particular
• Experience in maintaining complex multi-component products (Grafana or other similar dashboard / alerting systems)
• Experience in the development of concurrent/parallel systems
• Ability to learn new languages and technologies quickly
• Strong written communication skills in English
• Ability to join the team calls during Europe working hours

Nice to have

• Strong understanding of Ethereum contracts patterns and best practices
• Experience implementing complex Ethereum contracts in Solidity
• Familiarity with the internals of other blockchains
• Familiarity with Rust
• Previous engineering experience working with Substrate/Solana ecosystems
• Basic knowledge of cryptography
• Knowledge of runtimes and virtual machines

Responsibilities

• Overseeing the release process of the Bridge
• End-to-end ownership of the relayers and other non-blockchain services and other critical components
• Supporting and implementing different bridge blockchain connectors
• Maintenance of the Bridge
• Supporting the interaction between Bridge and Engine (EVM)
• Maintenance of documentation, product knowledge base, and on-call handbook
• Ownership of monitoring and alerting systems (e.g. Grafana)
• Working with the open-source community by collaborating with external contributors on our codebase, creating and participating in events, facilitating information exchange between our community and other open source communities
• Communication and collaboration with a fully distributed team
• Design and implementation of various interoperability components interacting with multiple blockchains

Your main responsibilities will be to develop new features and provide support on the company engine. Notably, keeping up to date with Ethereum improvements as well as quality improvements on the performance of the engine.

If you are eager to dive into the competing cross-chain ecosystem and would like to work in an energetic environment, surrounded by highly productive and meticulous engineers, we would be happy to see you!

Requirements

• Exceptional ability to keep things organized during the development of complex projects with a distributed team
• Proficiency in Rust
• Deep understanding of Blockchain technology and Ethereum in particular
• Knowledge of the Ethereum virtual machine
• Experience working in critical infrastructure systems, i.e blockchain
• Self-motivation and ability to fully own tasks
• Fast learner with a natural curiosity
• Clear ability and willingness to hustle and get things done
• Extreme ownership mentality - ability to take extreme ownership and full responsibility of tasks and projects
• Passionate about blockchain technology
• Able to provide valuable feedback and input during meetings
• Professionalism and quality in work ethic
• Staying committed to weekly assignments and being able to follow through

Nice to have

• Strong understanding of Ethereum smart contracts and best practices
• Experience implementing complex Ethereum contracts in Solidity
• Previous experience in the blockchain industry, particularly around the, Ethereum, Binance Smart Chain, or Solana ecosystem;
• Basic knowledge of Javascript
• Basic knowledge of cryptography

Responsibilities

• Overseeing the release process of the Engine
• Follow EIPs (Ethereum Improvement Protocols) from Ethereum and implement them into the engine
• Maintenance of the engine
• Maintenance of documentation, product knowledge base, and on-call handbook
• Supporting the interaction between the Engine and other teams
• Working with the open-source community by collaborating with external contributors on our codebase, creating and participating in events, facilitating information exchange between our community and other open source communities
• Communication and collaboration with a fully distributed team
• Collaborate with Ethereum and being active in the Ethereum engineering forums

Our client is looking for someone with very strong front-end skills who is an expert in React, with experience in web3 a plus; someone who wants to work in an early stage start-up and is motivated at the prospect of building something new from the ground up. More important than specific technical skills though is that you're a strong problem solver who loves to learn — we're not experts in everything and we don't expect you to be either.

You might not call yourself a designer, but you know great UI design when you see it and you know when something isn't up to par. Details matter to you, and if the text in a button is off-center by a pixel you will figure out why.

Your responsibilities include:

• Developing new user-facing features
• Building reusable code and libraries for future use
• Ensuring the technical feasibility of UI/UX designs
• Optimizing applications for maximum speed and scalability
• Translating design in Figma and/or Sketch to reusable components
• Collaborating with other team members and stakeholders

Here are some of the technologies we work with:

• Next.js
• Typescript
• web3
• Tailwind CSS

Our client invites you to be a part of a team of smart, professional, result-oriented, and fun individuals. Join them to help ensure that our background processes run smoothly while we are striving to become the best in the crypto world.

About the position 

You will be responsible for all aspects of software security and secure software development in client engineering team including (but not limited to):

• Introducing appropriate secure software development processes and honing these as needed.
• Threat modeling, design and code reviews as well as pre-release audits.
• Software security automation (3rd party dependency vulnerability checks, static/dynamic code analysis, etc.)
• Secure software development training & mentoring for software devs.
• Bug bounty programs, vulnerability reporting, triaging, etc.

About you

You are

• An experienced software developer who pivoted into security and has held similar security roles for 5+ years.
• A quick learner and an independent-minded person who functions well in a startup setting and gets stuff done with minimal supervision.

You already possess or must be willing (and able!) to acquire the following skills fast:

• Rust
• Solidity
• Blockchains in general

Our client is seeking a leader who can direct the roadmap for standards definition, work with the community to ensure standards are empowering development and advocate for standards adoption throughout the developer community.

You will lead standards definition, implementation and adoption throughout the client organization as well as the developer community. You will work closely with engineering teams within the client to understand standards implications and ensure standards are supported by the developer platform tool, education materials, reference materials and developer relations teams. You will partner with teams implementing the core protocol to ensure standards are understood and reflect the implementation needs of the core protocol. 

Role

This position requires communication with a large number of leaders of other client teams, including engineering, product, developer relations, marketing, developer community, etc. Your responsibilities will include:

• Working with internal engineers at client and external contributors on improving and evolving the contract standards;
• Manage the contract standards roadmap and deliverables;
• Manage the contract standards;  
• Work with the developer community and key development partners to understand the needs of the community as well as the operational impact of new standards; 
• Work with engineering managers to define standards implementation throughout the current protocol, tools and interfaces; 

Competencies

• Extensive knowledge of blockchain ecosystem, its development tools, and practices;

• Proven ability to work with a diverse set of internal and external stakeholders; 
• You should be able to work across other teams like Engineering, Legal, Compliance, Marketing with a shared sense of purpose. No room for ego here. People should want to work with you. Interpersonal skills are a must;
• You should be a great communicator and remain calm under pressure during any potential incidents or juggling multiple priorities. You should run toward problems. Calm, practical, self-aware, and self-confident approach to assessing and interacting with people;

Our client is looking for a Front-End Engineer to join the growing Engineering team. You will be working on implementing the interfaces and experiences for the Blockchain product. This is high productivity and highly dynamic startup environment so you will need to be comfortable operating quickly but precisely amidst changing needs.  There are also lots of opportunities to help inform the product development process and inject your own creativity.

To be successful in this role, you will need strong experience outputting high-precision interfaces and experiences in startup and/or consulting environments. It requires a deep understanding of modern markup, styling best practices and the implementation of Typescript/JavaScript components in React. In such a dynamic environment, great communication is essential.

Qualifications

• Ability to design and deliver web applications end to end
• The ability to solve all sorts of frontend engineering tasks
• Fluency in Typescript/Javascript and web standards
• Understanding of React (Next.js) practices (such as state management solutions, server-side rendering)
• Ability to operate in European time zones

Nice to Have

• Experience with WAMP-proto (or WebSocket / pub-sub APIs)
• Community focus and open-source mindset
• Capable of learning and can onboard quickly
• Ability to work across multiple time zones with remote colleagues
• Ability to adapt to last-minute asks and changing timelines and priorities with flexibility and good humor
• Curiosity about the Open Web and how it can improve the world

Responsibilities

• Design and develop frontend projects for the Blockchain product
• Review code, enforce quality and guide technical direction
• Work with the open source community by collaborating with external contributors on our codebase, creating and participating in events, facilitating information exchange between our community and other open source communities
• Participating in the on-call rotation

Our client is looking for a productive, meticulous, and empathetic leader who loves working in an energetic and free-thinking environment feels comfortable with challenging technical problems, and most importantly who shares with us the same desire to make the web free again. 

The client Engineering team is looking for a person to lead the work on the experience of running blockchain clients. You will be working with complex concurrent systems, low-level code, complicated state machines, and novel algorithms. You will also be working with various other engineering teams and product owners to improve both the blockchain protocol and the experience of running a company blockchain node. You will be expected to project technical excellence, accountability, and empathy for the rest of the team.

Qualifications

• We require great fluency with algorithms, excellent coding skills, and strong problem solving and analytical skills that you would use to build extremely complex systems;
• While you should have a zeal for technical excellence, you should be very comfortable with balancing degrees of risk and business needs;
• You should be a great communicator and remain calm under pressure or when juggling multiple priorities;
• You should be a humble and inspirational leader who is comfortable leading by example;

Nice to have:

• We prefer if you have familiarity with blockchains, concurrent systems, cryptography, or virtual machines;
• We prefer if you have experience working with large-scale distributed systems;

Responsibilities

• Building great engineering teams, ensuring the happiness and productivity of the individuals. We would also expect you to do a lot of hiring conversations and helping us with sourcing the candidates;
• Establishing and following the minimal necessary processes, like technical roadmaps, OKRs, milestones, regular team meetings;
• Communicating with the dependent parties, which includes internal teams, the external partners, and the engineering community;
• Establishing resilient team culture that can overcome any turbulence without burnout;
• Leading by example, writing the code, fixing bugs, and participating in design discussions when it is necessary to help the engineers working with you.

Our client is looking for a person who loves automating manual work, solving complicated problems, says no to downtime, working in an energetic and free-thinking environment, feels comfortable challenging opinions, and most importantly who shares with us the same desire to build the distributed Web.

Our client is looking for a Site Reliability Engineer to work as part of all core engineering teams to help cope with the operational load of a fast-growing team. At the company, we must deliver availability, performance, efficiency, monitoring, and emergency response, all while enabling decentralization of the client infrastructure. They are looking for a person to join our distributed on-call rotational team and help us create a self-sustaining blockchain infrastructure.

This is a high-productivity and highly dynamic startup environment so you will need to be comfortable operating quickly but precisely amidst changing needs. There is an opportunity to inject your creativity in almost any aspect of blockchain development.

Qualifications

• Advanced Python coding skills
• Solid understanding of UNIX internals
• Sharp troubleshooting skills, no problem is impossible to solve
• Experience with cloud provisioning tooling like Terraform, Packer, Ansible, Docker
• Experience with monitoring infrastructure like Grafana, Prometheus, Datadog
• Experience with CI infrastructure such as Travis, CircleCI, or Jenkins
• Experience in keeping services up 24/7
• Expertise in large-scale distributed systems.
• Excellent written and verbal communication skills in English
• Proven ability to be effective on a distributed team
• Passion for open source

Nice to Have

• Experience with the Rust programming language
• Experience with multiple cloud providers AWS, Azure and Google Cloud Platform
• Knowledge of blockchain technologies.

Responsibilities

• Together with the engineering team you will share the 24/7 on-call rotation (including weekends compensated with day-offs during the week)
• Help build self-driving services which run and repair themself
• Help define SLOs and mission critical metrics
• Drive our incident management response processes
• Build an emergency response playbook with monitoring and alerting
• Work with our core blockchain, middleware, and apps teams to deliver secure and high availability services
• Collaborate with a geographically distributed team, work in the open as part of the client open source project, and engage with clients global community