Clearmatics is a protocol engineering company. We are building a new financial market architecture that is more open, fair, and resilient than the legacy systems that are in use today. We develop protocols and software that create new markets for risk and more efficient infrastructure for trading, backed by a robust and scalable blockchain network, and secured with modern cryptographic techniques and economic mechanism design.
Clearmatics is based in London but operates on a 'remote first' model. We welcome candidates from all over the world. We have close ties to the Open Source and Ethereum communities, with Vitalik Buterin as an adviser.
The Engineering team at Clearmatics is responsible for developing our blockchain software at Layer 1 and Layer 2. At the core of our stack is the Autonity client, the node software that powers our blockchain network. It is based on Ethereum (go-ethereum) and is secured by Tendermint Proof-of-Stake consensus. Our decentralised platforms are built on smart contracts and decentralised applications, and are supported by backend services in Go.
We're looking to hire a Core Developer to expand our Layer 1 Engineering team.
ABOUT YOU
You're a systems programmer with good knowledge of Layer 1 protocols, and a passion for blockchain and decentralisation. You enjoy working to a high standard and writing code that is clean, performant, and maintainable. You appreciate the importance of careful design choices and can anticipate the impact of code changes on wider system behaviour. You can demonstrate a strong interest in blockchain and may even have open source contributions that you can highlight. You express yourself clearly in writing and in discussions.
RESPONSIBILITIES
You will be involved at all stages of the development lifecycle for the Autonity protocol and its blockchain node client (a fork of go-ethereum). These include: - Implementing new protocol features in Go and Solidity - Developing new distributed systems tests and frameworks - Contributing to protocol and design specifications - Working with members of the community to resolve issues - Your work will ensure that Autonity client is correct, reliable, performant, and secure. This will enable Autonity to serve as the foundational layer for a new ecosystem of decentralised markets.
REQUIREMENTS
BONUS POINTS
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Who are we?
Audius is a decentralized, community-owned, and artist-controlled music-sharing protocol. Audius provides a blockchain-based alternative to SoundCloud to help artists monetize their work and distribute it directly to fans. Audius launched it's public beta at the end of September and within the first week over 30,000 users listened to 13,000 tracks from artists that signed up to use Audius including Deadmau5, 3LAU, Brownies and Lemonade, Zeds Dead, with exclusive content from Rezz, Lido and others.
Who we are looking for?
We are looking for a backend engineer to help us design, build, and architect the Audius protocol. You are a collaborative, team player that enjoys working with a small team to solve big problems that need innovative solutions.
Do you self-identify as a great problem solver?
Have you been honing your innovation craft for years yet yearning for more complex challenges?
Does the opportunity to play a key role in the launch of a software platform with massive impact (for millions or even billions of people) excite you?
If you’ve answered with 3 resounding yeses, then we want to meet you!
What We Expect We are a cutting-edge web3 infrastructure scale-up project seeking a few very talented developers who are not just looking for a job but want to be challenged to accomplish great things in an exciting venture.
We are the veterans of many successful startups and will put you on the accelerated learning curve toward your future success.
We are looking for an experienced Lead Golang Engineer who has designed, built, and operated high-throughput, highly resilient distributed data systems. This is a rare opportunity to work with a number of talented innovators on building a protocol that can change the data cloud landscape, e.g. decentralizing big data.
This core systems development position will challenge you to drive the design and development of significant system software components with a highly collaborative, test-driven, and rapid prototyping approach. In addition, you will definitely need to build upon your previous innovation and operational experience with highly scalable distributed systems that provide availability, reliability, and performance guarantees.
About Cere Network Cere Network is the decentralized data protocol powering the future of web3 with trustless content sharing and cloud data interactions between apps, users, AI/ML, and (NFT) assets. Cere is backed by the world’s largest institutions and projects, including Binance Labs, Republic Labs, and Polygon.
Our Ethos We look for a few things across all hires we make at Cere, regardless of role or team: - We seek teammates who will thrive in our fast-paced work environment, where we default to methodical, simulation-driven, fast development iterations and a first-principle thinking mindset. - We crave teammates with high standards and strong discipline, embracing a growth mindset to continuously learn and incrementally improve habits and processes. - We require contributors to have excellent communication skills (esp. written), for everything must be well organized and tracked in Notion, Slack, Wiki’s, etc. We want autonomous, goal-oriented individuals who embrace transparency and accountability. No one wants to micro-manage others. - We need good teammates who are generally cool people who want to be part of a great team & decentralized community where everyone truly helps and challenges each other to learn/grow by innovating together towards greater shared goals. Embracing the building of such a collaborative community is the only way we can sustain rapid innovation (and the only way to live/work, really).
Requirements: - 5+ years of extensive programming experience with Golang. - Deep understanding of system design, data structures, and algorithms. - Experience with concurrency, transactions and parallel execution. - Experience with cryptography (encryption and signatures). - Systematic problem-solving approach coupled with effective communication skills.
Nice to have: - Experience with distributed databases and/or storage systems. - Database engine internals (storage): indexing, access methods, concurrency control, logging, caching, transaction processing, replication, backup restore, and buffer management. - Database engine internals (query processing): query compilation, optimization, execution, parallel execution. - Distributed systems: consensus-based quorum replication, peering networks system implementation.
Tech stack: - Golang - libp2p - BadgerDB - Substrate-based blockchain API - Crypto libraries for asymmetric encryption and signatures
A bit more about our Multinational, High-Performance (and primarily remote) Team Join a highly talented multicultural team that is based all over the world. We have offices in San Francisco, New York, Warsaw, Amsterdam, Berlin, and several locations in Asia. As stated above, we make remote working possible by embracing our ethos, yet many teams also travel to meet in person every 1-2 months. We all want high degrees of autonomy and flexibility to make life and work fun, but transparency, accountability/ownership are the requisites.
Brahma is a DeFi protocol focused on optimising the execution, monitoring, and automation of capital strategies. We offer a suite of tools to optimise your DeFi asset management strategies, allowing for automated operations while maintaining custody and optimised execution. Our latest product https://console.brahma.fi, allows Safe multisig wallets to get automation capabilities without having to give custody of their funds. Imagine signing once a planned future task from your wallet, and get it automated over time (whether that’s compounding your investment, closing a position in case of a certain risk, and more)
Job Description
We're seeking a proficient Go Backend Developer who will join our remote team to architect and build engaging product experiences, translating design ideas, concepts, and requirements into functional products. You will be working closely with designers, product owners, and other team members to bring our tooling to life.
Responsibilities
Architecting & building functional systems and products Work closely with team members to ensure system consistency and improve user experience. Developing effective APIs Monitor system performance and troubleshoot complex software issues.
Qualifications
Deep expertise in Go programming language with projects in production, whether at a company or personal projects Proven experience architecting modern, scalable, and high-performing full-stack web applications Experience building web services Great attention to detail
Bonus Qualifications
Experience with Etherjs / web3js and go-ethereum Experience with cloud architecture (AWS) Built and tested personal/work projects from the ground up, which ran with a user base We don't place a great emphasis on years of experience; instead, we're interested in your ability to build complex projects from scratch, your desire to learn more about web3 development and improve, and your problem-solving skills. Our team is small, ensuring that your contributions, whether as an engineer or otherwise, are always heard and discussed.
Benefits
Competitive salary and token performance-based bonuses A fully remote, collaborative, and decentralised environment where your initiatives and ideas count and are rewarded Learning from a flat and cross-functional team, you can learn anything around the web3 space as well as hardcore development and quant ecosystem with us A unique open research environment where everybody contributes and sees the full spectrum of our work, from inception to production and trading Shape the future of an on-chain protocol building for professional users on multiple chains. To apply, please submit your Github and resume. We look forward to hearing from you!
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Remerge is a fast-growing mobile advertising scale-up that has become the no.1 app retargeting company over the last 6 years with offices spanning Berlin, San Francisco, New York, Singapore, Beijing, Seoul and Tokyo. Remerge enables app developers to re-engage up to 3.3 million users per second across 1 million apps globally in order to increase retention and boost user lifetime value. We love data, designing for the user and anything that helps drive intelligent decisions.
Job mission
As a part of our Backend team you will be working on our bidding, data processing and machine learning infrastructure. This involves services which are distributed around the globe, handling more than two million requests per second and generating terabytes of data daily. Our tech stack consists of a variety of technologies such as Golang, Python, Kafka, Druid, Aerospike, Ruby, Elasticsearch, Chef, Hadoop, Spark, TensorFlow, Terraform and Kubernetes.
Responsibilities
Requirements
Our Promise
Remerge is an Equal Opportunity Employer: all qualified applicants are considered for positions regardless of race, ethnic origin, gender, age, religion or belief, marital status, gender identification, sexual orientation, veteran status or disability. We're looking forward to your application!
This job posting is no longer available
Rumble brings together the best of IT, security and networking technology to deliver amazing network discovery and asset inventory capabilities for modern enterprises.
An accurate network inventory is a fundamental building block of all security programs, yet most inventory products do a poor job of network-based discovery because they only see it as a stepping stone to the “real” product features. Legacy products work by sending sensitive credentials to every asset on the network and fail to handle today’s hybrid environments. Without a solid inventory, most companies struggle with attack surface reduction, network management, and incident response.
Rumble Network Discovery is a product of Rumble, Inc. We are a fully virtual, high-growth startup based in the United States. Our founders each have over 20 years of experience growing companies in the information security industry, including Rapid7, Veracode, BreakingPoint Systems, and PGP.
Rumble has already proven its market fit. Rumble appeals to companies of all shapes and sizes; we have customers that range from museums to Fortune 500 technology companies. We serve the low-end of the market through eCommerce and the mid-market and enterprise segment through inside sales.
We’re building the engineering team to lead Rumble into the future. Our work is a mix of Go development, low-level protocol research, standard web technologies, PostgreSQL, and a mix of cloud technologies and integrations. Our platform is cloud-agnostic, can be self-hosted, and builds from a single repository. We ship daily and focus on incremental delivery with fast turnaround for customer requests and bug fixes. We bootstrapped to product market fit and recently raised a $5m venture capital round to accelerate our growth. The company was cash-flow positive in 2020.
We’re looking for senior engineers that are excited about research-driven product development and want to help build a company focused on happy customers and product-led growth.
We’re searching for senior engineers to grow our team! You will contribute to all stages of development, deployment, support, operations, and product planning. This position reports directly to the CEO today and will split into functional teams once the team expands. This is a growth opportunity for future engineering leadership as well as long-term individual contributors.
Contribute your skills and knowledge to building, supporting, and operating an amazing product experience for our customers.
Learn as you go to understand customer needs, product structure, fingerprinting techniques, and network protocols.
Self-task and coordinate with the rest of the engineering team to move the product forward, solve customer challenges, and keep the platform running smoothly.
Work with customers to identify bugs, understand gaps in product functionality, and flag opportunities for improvement.
Work closely and communicate effectively with functional teams across the company to keep our customer experience aligned with product and sales operations.
A strong track record of building products that customers love.
5+ years of experience in programming-heavy engineering roles with a demonstrated ability to ship quality results, frequently.
Go programming experience is preferred, but if you have deep experience in other languages and are excited about learning Go, we can make that work too.
Extensive experience with web development (HTML, CSS, plain JS) and a solid understanding of the HTTP protocol and the web browser security model.
PostgreSQL database experience, but other SQL database experience is also applicable.
A solid understanding of standard development tools and processes, including Git and issue-management systems.
Confidence working with Linux instances for deployment and diagnostics.
We’re a fully remote company but you need to be located in the US, with US citizenship or permanent residency for healthcare, payroll, and legal reasons.
We offer an extensive set of benefits including:
Competitive salaries and a stock option plan.
Top of the line medical, dental, vision, life and disability coverages with Rumble paying for 99% of the premium.
A flexible vacation policy.
401(k) match program.
To apply for this role, please send your resume and information about the products you have worked on to careers@rumble.run.
We encourage under-represented applicants to apply, even if you don’t think you fit 100% of the criteria (nobody ever does)!
About Herdius:
Herdius is a Berlin based Blockchain Company. We are working on building homomorphic distributed private key generation which then is turned into value bearing products in different sectors. Currently we are very close to open beta-testing for the Herdius-Crypto-Wallet. What we focus on on the blockchain field specifically is interoperability and trading. When connecting different chains on the key level, users can eliminate communication channels, bridges and complex systems. In other words, users can do cross-exchange and chain token swaps very conveniently and profitably for the user due to the cross-exchange arbitrage opportunities. The broader vision is one day to replace API auth keys with public-private key cryptography in order to provide layered access to user data.
All this makes for a crypto eco system and hedge fund that pays interest on all cryptocurrencies (that right now are unfortunately somewhat unusable and just laying around on wallets).
About the role:
Herdius is seeking for a Gopher Guru - an experienced Senior Golang Backend-Developer - to join our team of smart and visionary individuals. Experience in Blockchain is not necessary but a big plus.
We do not look at this role as another standard job but rather as great opportunity to build something really meaningful und amazing. Become a member of our great collective of top nodge engineers and people - altogether working to create cutting edge tech for the masses.
Besides the Herdius HQ in Berlin our Dev-Team is working mostly remote on different time-zones - so this vacancy surely also is location agnostic.
We would expect you to contribute at least 20hrs per week for part-time but joining full time is possible, too.
Cool things you will work on:
Skills & requirements
Your education or professional experience at the end of the day does not matter to us. It all comes down to us being convinced by your skills and drive! We mainly look for people who are passionate about projects they work on and have the drive to see a project through. Our code is mostly done in Golang with some Solidity for connectivity with Ethereum.
How to apply:
Send anything that reflects on your knowledge and experience in the field. Besides a CV/LinkedIn-profile you can send links of your GitHub/Stack Overflow/Portfolio/ or something awesome you've built that you’re simply proud of.
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Here at BitMED we appreciate transparency and creativity. So, let’s try something new. We would like to give you the opportunity to learn more about this role the same way we would get to know you. An application!
We’ll go first…
Why is this position crucial to BitMED?
Our lean team is ready to grow! We are rapidly onboarding 22M members to our platform and that number is growing every day. Our Systems Software Engineer will be responsible for defining and implementing our software standards as they integrate between frontend, backend, data storage, infrastructure and other core system components. By joining our small team, they will be an integral contributor in developing our engineering culture. This person will be a key enabler for lean integration, faster innovation, rapid development, streamlined communication and improved collaboration.
Why does this person want to work at BitMED?
They are excited about bringing blockchain technology to the healthcare community at scale. Joining BitMED is a strategic and advantageous career move for them as they will play a crucial role as a contributor to bringing a global, no-cost healthcare solution to market. They visualize the impact they’ll have in this role and are prepared to offer their expertise towards building a successful new platform that will change the way the world views healthcare.
What will this person do on a day-to-day basis?
The Systems Software Engineer will be responsible for designing and implementing software for a variety of scalable, reliable, and secure distributed computing systems (e.g. blockchain). They will design, implement, and debug core components of internal distributed computing services. They will research and implement key technologies (e.g. blockchain), architectures, and standards. They will work with other engineering teams to ensure that services meet scalability, availability, security, and performance goals.
What is this person expected to accomplish within their first 90 days?
This person will assess the status of our current system software and build upon them. They will work with various members of the engineering team to define and implement API standards. During their first 90 days, our Systems Software Engineer will design and implement Protocol APIs for BitMED’s core services and work with various internal and external technical teams on the adoption. By the end of their first 90 days, we expect this person to draft the Protocol API documentation geared towards open-sourcing the API.
What qualities should this person have?
BitMED is looking for a person with the willingness to learn and the ability to contribute right off the bat. They can balance timeliness and business priorities with technical feasibility. They are adamant about solving problems and are a reliable resource for insight and assessment of technical issues. They are able to speak openly and humbly about their failures and mistakes, clearly articulating what happened and how it was addressed. They are passionate about learning, executing and leading by example. They are an open source enthusiast and a best in class developer with a desire to gain knowledge in an emerging market. They are able to think through and anticipate how hackers and others may attempt to subvert or misuse applications.
What experience should this person have?
What technical skills MUST this person have?
What skills would we like this person to have?
Your turn!
Summary: We have a full time long term remote Senior Golang Backend position in our very well funded startup Kubeshark. Direct hiring by the startup, no outsourcing, good benefits.
Main skills needed: 5+ years with Golang as the main technology. also very experienced senior level with Kubernetes.
Big bonus skill: open source contributions Big bonus skill: low-level coding experience at the Linux Kernel (e.g. BPF, eBPF, Drivers)
You will be working with a small amazing team on very interesting concepts.
About Kubeshark
Kubeshark is a new open-source project available on GitHub that equips SREs and DevOps with unique insights, previously unavailable, to accelerate their pursuit of the root causes of production incidents and facilitate swift incident resolution.
Think Wireshark re-invented for K8s: Kubeshark provides real-time, cluster-wide, protocol-level visibility into API traffic, empowering DevOps and SREs to see with their own eyes what's happening in every corner of their Kubernetes clusters.
Opportunity: -Work in a remote-first, asynchronous company -Full-time employment or contract/project-based work -Join a funded, early stage startup led by a proven entrepreneur who already did an exit and sold a company -Option to receive equity -Continuously deal with bleeding-edge technologies -Absolute authority and a ton of tailwind to build something big and great!
Character: -Self-activated, energetic. -A one-person team with a multidisciplinary approach and an appetite to own as many facets of the application as possible -Insatiable hunger to learn, and courage to embark on new disciplines (integrations, languages, bleeding-edge technologies) -Smart, highly organized, perfectionist -Very comfortable to repurpose open source code before writing new code -Won’t let obstacles slow them down -Team player -Hardworker and good communicator -Highly enjoys and fully understands what it means to be part of a vibrant, highly dynamic startup environment
Scope: -Take an active role in developing the backend of Kubeshark (https://kubeshark.co) -Write Golang code, and build docker images that run inside Kubernetes -Write low-level Kernel code
Skills: -Great english -Senior developer with global/system-wide view -Strong understanding in microservice architecture -A fast prototyper -Thorough understanding of the network OSI stack and network protocols -Super comfortable using kubernetes, docker, kubectl, building dockers locally, editing manifests, etc -5 yrs+ experience in Golang -Active on Github with proven experience in leading or contributing to open source projects -Active on developer social networks (e.g Redit, StackOverflow) -Proven successful experience working remote -Experience in low-level coding at the Linux Kernel (e.g. BPF, eBPF, Drivers) - big plus -Experience as a DevOps, managing Kubernetes clusters and AWS resources, a very strong plus.
Out team is US/Europe based and so we will consider candidates mostly from these timezones (US/Latam/Europe).
We're looking forward to hear from you :)
We are seeking a skilled Staff Software Developer to join our team. This role is open in our Amsterdam office (relocation is possible), or remotely (EU or UK-based).
You'll focus on one of the most used Products: Chat, as well as the brand new Video & Audio API.
A big portion of your day will be dedicated to software design, research, and coding.
On typical projects, you will have a lot of freedom and you will be paired with another team member.
Our team is made up of very experienced engineers, some with more than 10 years of experience.
By working together you will learn from each other along the way. Not only that, you will have an enormous impact!
Our customers have millions of users; they use Stream for mission-critical features such as showing content and exposing the core functionality of their application.
You have:
Bonus points:
Our tech stack
At Stream we use a wide collection of technologies to offer highly optimised and available features to our customers. Over the years we have experimented with different programming languages, frameworks, databases, and libraries.
Here is a short list of the technology that we currently use.
Do not worry if you do not master them all or if you do not see your favourite tool or language, you will have the chance to be exposed to most and to convince us to expand the list:
Stream employees enjoy some of the best benefits in the industry:
A team of exceptional engineers
The chance to work on OSS projects
28 days paid time off plus paid Dutch holidays
Company equity
A pension scheme
Remote work flexibility
A Learning and Development budget
Commute expenses to Amsterdam covered or the option to use a company bike within the city
Fitness stipend
Monthly in-office chair massages by a professional
MacBook Pro
Healthy team lunches and plenty of snacks
A generous relocation package
An office in the heart of Amsterdam
The opportunity to attend or present at global conferences and meetups
The possibility to visit our office in Boulder, CO
Parental leave paid at 100%
Note: this list of benefits applies to Netherlands-based employees and is adjusted per your location of residence.
Stream has a casual social culture, our team is diverse and we all have different backgrounds. Now, Stream is a team of over 130+ peers from over 35 countries across the globe.
We value transparency, aim for excellence, and support each other on our way to new victories.
Our team consists of the strongest talents worldwide, making Stream a great place to learn and improve your skills.
When it comes to software engineering, our culture is oriented towards ownership and quality: our goal is to deliver stable software.
If you are interested in becoming a part of what we do, apply now!
Stream provides equal employment opportunities to all employees and applicants for employment and prohibits discrimination and harassment of any type without regard to race, color, religion, age, sex, national origin, disability status, genetics, protected veteran status, sexual orientation, gender identity or expression, or any other characteristic protected by federal, state or local laws.
This policy applies to all terms and conditions of employment, including recruiting, hiring, placement, promotion, termination, layoff, recall, transfer, leaves of absence, compensation and training.
No recruiters/agencies please