At Horizon, we’re building a New Dimension where Internet economies are fun, accessible, and for the benefit of all participants.
We have two amazing products to make this real:
Sequence, which consists of i) the first user-friendly smart wallet for crypto, NFTs, Web3 + the metaverse, and ii) a developer platform to make building Web3 applications easy on Ethereum and other EVM chains.
And Skyweaver, a digital trading card game—powered by Sequence—where players can win, own, trade and sell their NFT game items.
Sequence is poised to drive Web3 adoption on a massive scale by making blockchain easy, fun and powerful for users and developers. And, Skyweaver is a groundbreaking video game with an unprecedented player-owned economy, novel gameplay, and an already fervent community.
While the challenge is hard, we find it incredibly fun. And, we have the ingredients to make it happen: a well-capitalized company with some of the best investors in the world (Reddit co-founder, Coinbase, Initialized, and more), an amazing team of leaders in the blockchain space, engineers who have built widely popular open source, a former top McKinsey strategy consultant, gaming industry veterans, and founders who have built and sold successful companies. You'll get to work with and learn from them all. Learn more at https://horizon.io/
About the Role
We're looking for someone with experience architecting, writing, testing and shipping production-quality code in Go, with a background in Ethereum development. You are rigourous and have a refined eye for simple arhitecture and clean code, and you are able to balance tradeoffs inherent in all design decisions.
You enjoy building scalable, fault-tolerant systems. You understand the meaning of value and delivering products that achieve business outcomes while laying the foundation of great tech that affects our entire org, and is impactful. This matters to you.
As a senior engineer, you have a deep understanding of designing robust, well-designed code with thoughtful architecture. You can drive and self-direct major areas of our stack. While not a strict requirement, you are comfortable working with and guiding more intermediate and junior engineers when needed.
Given our size, self-driven, and open-minded engineers will thrive best in this role. While small, you'll be working alongside some of the best engineers, and open-source contributors—and a company dedicated to your success. You will learn a lot.
Responsibilities:
-Architect, develop, and implement the infrastructure, and infrastructure stack of Skyweaver and Sequence -Design and implement services that are scalable, and fault-tolerant -Build services that interface with the Ethereum blockchain -Contribute to open source works in the Sequence stack -Extend and evolve our toolchain, to run our stack effectively -Design architectural foundations that are robust and sound, so that future engineers can build on your work with ease and speed
Requirements:
-5+ years shipping production-grade code in Go -Experience and knowledge of the Ethereum blockchain, its tooling and ecosystem -Knowledge of distributed systems design -Experience with data systems, both in their design and practical use -Experience with one of the major cloud providers, AWS, GCP, Azure, etc. -Growth mindset. You love to learn, and actively search out new material and technologies
Why Horizon?
· A chance to deliver massive impact at a small and quickly growing company · Competitive salary and equity package · Accelerate your career by joining at the early stages · Be part of defining Web3, the next generation of the Internet, and creating symbiotic economies where both users and creators share in the value generated by networks · Work with an outstanding team made of wonderful people who have built and sold successful companies, launched amazing products, and have rich experience in infrastructure, architecture, blockchain, games, finance, investing, strategy, consulting, design, marketing, community, and more. · Work life balance unlike the “crunch” culture you find at larger studios · New PC, and generous allowance for work-from-home setup · Health, vision and dental benefits for Canadian employees · We’re conscious about mental health and have modern vacation policies · We invest in everyone’s personal development and subsidize courses, books, and conferences, so you never stop learning · Work on hard, big, meaningful problems that can shift markets · Learn more about our values and the traits we embody at https://careers.horizon.io/
We are committed to diversity and encourage applicants from all backgrounds, genders and faiths. While we're building incredible products, we also want to add to our wonderful team and company. The best way to do that is to attract talented folks from all areas and to have their experiences inform their work.
This job posting is no longer available
We're looking for someone who has: - At least 5 years of software engineering experience with open source contributions. - Experience developing, releasing, and maintaining production software. - Significant experience writing Golang or the ability and desire to become proficient in new languages. - A strong grasp of computer science fundamentals. - Deep understanding of the theory and implementation of database trees on real file systems. - Experience working in an agile development environment. - The ability to take ownership and see initiatives through. - Worked with and mentored junior engineers. - Exceptional communication skills. - Experience working with distributed teams.
What your primary responsibilities will be: - Improve the IAVL codebase by committing DRY, well tested code. - Work with the Cosmos-SDK team to keep the IAVL tree and its proofs well integrated. - Optimize our implementation of the IAVL tree and its proofs. - Research, design, and implement improvements to the IAVL tree, the proofs, and related protocols. - Help formalize the specification of the IAVL tree and proofs and ensure the implementation adheres to the spec. - Develop simulations for testing the behaviour of the IAVL tree under various loads and read/write strategies. - Develop alternatives to the IAVL tree like the Ethereum Patricia Trie that adhere to the same interfaces. - Mentor junior engineers and support the growth and health of the team. - Review pull requests and provide valuable feedback to members of the team and open source contributors.
What we offer: - The opportunity to build the future of the internet. - An exciting role building open source software. - Flexible work schedule. - At least 4 weeks of paid vacation. - Very competitive salary, including equity.
About our application process: Qualified candidates can expect to go through a 4 step interview process. The first interview will be a call to assess cultural fit and to make sure our goals are aligned.
If we think there is a good fit, you'll have a call with one of our project managers to learn more about your skills and attitudes toward teamwork. If it's clear that you'd be a good addition to the team, we’ll ask you to complete a technical task for which you will be compensated.
If your technical task displays a high level of quality and care we will set up a final interview with our CEO or CTO.
The process can take up to 3 weeks.
How to apply: https://goo.gl/forms/jpdRI1wD8pdfoqKl2
This job posting is no longer available
We're looking for someone who has: - At least 5 years of software engineering experience. - Significant experience writing Golang. - Built an open source framework for software development. - Significant open source software contributions. - Experience working in an agile development environment. - The ability to take ownership and see initiatives through. - Worked with and mentored junior engineers. - Exceptional communication skills. - Experience working with distributed teams.
What your primary responsibilities will be: - Improve the SDK codebase by committing DRY, well tested code. - Work with the SDK team to triage tickets and move the project forward. - Review pull requests and provide valuable feedback to members of the team and open source contributors. - Mentor junior engineers and support the growth and health of the team. - Help with developer adoption by supporting projects using the SDK. - Participate in developer discussion forums and work to improve the usability based on user feedback. - Promote the SDK by publishing blog posts and guides.
What we offer: - The opportunity to build the future of the internet. - An exciting role building open source software. - Flexible work schedule. - At least 4 weeks of paid vacation. - Very competitive salary, including equity.
About our application process:
Qualified candidates can expect to go through a 4 step interview process. The first interview will be a call to assess cultural fit and to make sure our goals are aligned.
If we think there is a good fit, you'll have a call with one of our project managers to learn more about your skills and attitudes toward teamwork. If it's clear that you'd be a good addition to the team, we’ll ask you to complete a technical task for which you will be compensated.
If your technical task displays a high level of quality and care we will set up a final interview with our CEO or CTO.
The process can take up to 3 weeks.
How to apply: To apply, please fill out this form: https://goo.gl/forms/jpdRI1wD8pdfoqKl2
This job posting is no longer available
WHO YOU ARE: - At least 5 years of programming experience. - Significant experience with Golang. - Extensive understanding of the Ethereum state machine, including the EVM, transaction structures, state mechanics, etc. - Experience with the go-ethereum or parity codebase. - Expertise in blockchain technologies. - Experience working in an agile environment. - The ability to take ownership and see initiatives through. - Worked with and mentored junior engineers. - Exceptional communication skills. - Experience working with distributed teams.
WHERE YOU ARE: - Berlin - San Francisco - Toronto
ROLES/RESPONSIBILITIES: - Develop, maintain, and extend Ethermint - the EVM implementation on Tendermint Core - Develop Plasma-style sidechains for Ethereum - Develop Cosmos-Ethereum peg zones - Contribute to go-ethereum to improve its modularity and usability as a library - Help formalize the specification of Ethermint and ensure the implementation adheres to the spec. - Mentor junior engineers and support the growth and health of the team. - Review pull requests and provide valuable feedback to members of the team and open source contributors.
WHAT WE OFFER: - The opportunity to build the future of the internet. - An exciting role building open source software. - Flexible work schedule. - Travel stipend for conferences and in person collaboration. - At least 4 weeks of paid vacation. - Very competitive salary, including equity.
ABOUT OUR APPLICATION PROCESS: Qualified candidates can expect to go through a 4 step interview process. The first interview will be a call to assess cultural fit and to make sure our goals are aligned.
If we think there is a good fit, you'll have a call with one of our project managers to learn more about your skills and attitudes toward teamwork. If it's clear that you'd be a good addition to the team, we’ll ask you to complete a technical task for which you will be compensated.
If your technical task displays a high level of quality and care we will set up a final interview with our CEO or CTO.
The process can take up to 3 weeks.
HOW TO APPLY: To apply, please fill out this form: https://goo.gl/forms/jpdRI1wD8pdfoqKl2
This job posting is no longer available
We're looking for someone who has: - At least 5 years of software engineering experience with open source contributions. - Written structured, high-quality programs and scripts for automation. - Significant experience writing Golang or the ability and desire to become proficient in new languages. - Experience developing, releasing, and maintaining production software and infrastructure tools like Elastic stack, InfluxDB stack, DataDog, PagerDuty, or VictorOps. - Built solutions with a broad set of technologies in and around cloud solutions (AWS EC2, ECS, Route53, DynamoDB, RDS, Lambda, Docker, - Google Container Engine, Kubernetes or Docker Swarm). - Implemented continuous deployment before (Jenkins, CircleCI, Travis, Ansible, Chef, Puppet). - Experience with SDLC tools (Git, GitHub, Atlassian Stash/Bitbucket, GitLab, JIRA). - Experience with QA/SIT tools (Selenium). - Experience in Linux System administration including package management, network management, and security management. - Familiarity with open source P2P networking protocols. - Experience working in an agile development environment. - The ability to take ownership and see initiatives through. - Exceptional communication skills. - Experience working with distributed teams.
What your primary responsibilities will be: - Help scale software systems with automation, in an effort to improve reliability, velocity, and simplicity. - Create, maintain, and improve the tooling for continuous integration and continuous delivery. - Build and maintain tooling for deploying, monitoring, and maintaining clusters of Tendermint nodes on our testnets and mainnets. - Build and maintain tooling to help shorten feedback cycles within teams and projects. - Plan, build, and maintain public facing services in association with business goals. - Build tools to measure and monitor availability, latency and overall system health.
Apply : https://goo.gl/forms/jpdRI1wD8pdfoqKl2
This job posting is no longer available
Swish is a world-class development studio whose teams have delivered products for Google, Microsoft, Kik, Nasdaq, Factset, and other major enterprises. The blockchain engineering team at Swish is looking for talented distributed systems engineers to optimize protocol transaction throughput and network reliability for blockchains in development.
Our mission is to bring the promise of a decentralized blockchain-based future to reality for clients.
As a systems engineer, you will work with our blockchain developers, protocol researchers and clients to implement and improve on a byzantine fault tolerant blockchain architecture based on the Tendermint consensus layer, by increasing the throughput, reliability and stability of the network. This role is ideal for engineers who have experience optimizing performance and robustness of distributed systems, and are excited to be working on the cutting edge of high-performance blockchain protocol development.
You might have experience as an Unix/Linux distributed systems engineer optimizing performance and reliability for large-scale cloud servers, and be relatively new to blockchain and distributed consensus protocols. Or you might be a blockchain engineer who is very familiar with distributed consensus protocols like delegated proof-of-stake, and newer to working on low-level performance optimizations. Experience with Tendermint is a huge plus. Either way, you are a great detective and passionate about pushing the performance of your infrastructure to its limits, without compromising on safety or stability.
We are also looking for: Strong communication skills. Experience with performance and load testing.
You should be motivated by a desire to solve the most important problems, obtain unprecedented results, and push your methods to their maximal performance.
Responsibilities * Optimize Tendermint consensus protocol codebase for speed, reliability and performance, including making PRs as needed to the OSS Tendermint project * Troubleshoot reliability issues of distributed systems, e. g. connection losses between Tendermint nodes under heavy load * Monitor the infrastructure and blockchain performance to identify issues * Measure and improve server response times in different conditions and environments * Guide protocol design decisions
Requirements * 1+ years experience with Golang, C or C++ * 4+ years of experience in a systems engineering role * Deep experience with networking and concurrent computing * Deep experience with Unix/Linux systems * Experience with AWS/GCP * Comfortable operating in dynamic environments
Bonus Points * Background in networking or distributed systems * Familiarity with Cosmos / Tendermint * Proficiency in protocol-level blockchain development * Contribution to open source software * Degree in STEM field, especially software engineering or computer science related. * Experience in small startup environments helping large enterprises. * Experience with a distributed team
About Swish
Launched in February 2013, Swish is a fast-growing business with an innovative working culture and teams spanned across the world with teams in Toronto, San Francisco, Berlin, Auckland, Bruxelles, Medellin, and more.
We create products for successful business using cutting-edge technologies: Blockchain, Machine Learning, and Apps Dev. Working with Swish puts you in contact with prestigious brands, wherever your base is. We are a 100% remote-work company because we believe it is everyone’s choice to live and work the way they prefer.
Work is organized in sprints - 2 weeks periods to which, as a member of our talent community, you choose to commit. You always have the choice to accept or decline a sprint, or take-on multiple sprints simultaneously.
We let members choose what suits them best depending on their current situation: family, travel, studies, finance. We know life is not linear and we respect the humans behind the screens.
Our work ethic relies on six core values: Transparency, Directness, Meritocracy, Autonomy, Responsibility, Continuous Learning.
Ensuring a diverse and inclusive workplace where we learn from each other is core to our values. We welcome people of different backgrounds, experiences, abilities, and perspectives. We are an equal opportunity employer and a fun place to work.
Join the future of work today.