Web3 Part Time Web3 Jobs in Berlin, Germany
















Job Title | Company Name | Salary | Location | Tags | Posted | |
---|---|---|---|---|---|---|
Ethereum Foundation | RemoteWeb3Full TimeNon Tech | 3d |

Sep 04, 2025

Protocol Tester - Consensus layerAbout the Ethereum FoundationThe Ethereum Foundation (EF) is a global non-profit organization dedicated to supporting Ethereum. Our mission is to ensure the long-term success of Ethereum by allocating resources to critical projects, being a positive voice within the Ethereum ecosystem, and advocating for Ethereum to the outside world.Job DescriptionWe’re seeking passionate and collaborative individuals who are excited about testing Ethereum to help reduce the risk of software failures across the protocol. As part of the EF Testing Team, you'll collaborate with other testers, dev operatooors, client developers, and protocol researchers to ensure protocol upgrades are thoroughly and efficiently tested.As a Protocol Tester, you’ll use your technical expertise to enhance testing methods, implement tests for new and existing protocol features, and improve our test infrastructure. This role involves working with complex subsystems that are integral to the Ethereum Protocol.As an open-source project, we operate transparently and communicate in publicly accessible channels daily, so being comfortable working in the open is essential. In this fast-paced, constantly evolving, and sometimes unpredictable space, your work will be dynamic and may shift in response to changing priorities.Responsibilities* Implement and execute reliable, deterministic tests that ensure the robustness of protocol upgrades* Improve test methods and enhance test infrastructure to improve efficiency and coverage of protocol feature testing* Collaborate with other teams to ensure seamless code integration and test results* Contribute to the open-source community by sharing ideas, improvements, and solutions in public channelsWe’re seeking someone who* Has a strong passion for Ethereum and blockchain technologyIs comfortable working in an open-source environment where communication happens transparently* Has the ability to work in a highly independent and self-directed manner* Has a proven ability to drive innovation and deliver on ideasMinimum RequirementsTo thrive in this role, you should have:* Foundational knowledge of the Consensus Layer protocol* 2+ years experience as a software tester* 2+ years experience with Python* Intermediate experience working in Linux environments* Familiarity with the entire software development life cycle* A desire to openly share improvements, ideas, failures, and successesBonus Points* Contributed to ethereum/execution-spec-tests, ethereum/consensus-specs or another related repository* Familiar with Ethereum beacon chain design and recent upgrades* Experience with the pytest test framework* Other open-source contributions* The ability to automate and optimize frequent tasks in CI pipelines* Experience with the Go Programming LanguageContract Details* Optimally full-time position, part-time (4 days) possible* Flexible work and working hours* Competitive compensation* Remote first, with offices in Berlin and Boulder (US)
Listed in: Web3 Jobs, Remote Web3 Jobs, Web3 Crypto Jobs, Full Time Web3 Jobs, Non Tech Web3 Jobs, Part Time Web3 Jobs, Python Web3 Jobs, Community Web3 Jobs, Contract Crypto Jobs, Open Source Crypto Jobs, Ethereum Crypto Jobs, Linux Web3 Jobs.


Head of GTMMimic Protocol
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Chief of Staff & SVP SalesTheStreet / Roundtable
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Co-Founder and COOMultiverse
The application quantity is much more than anticipated! We also found several attractive candidates. The salary, location, and skill set range is very broad, making finding the right person for the job pretty easy. It’s not the first time we post an open position here, and that won’t be the last.


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We hired our Head of Social through CryptoJobsList and received an impressive talent pool of over 80 passionate individuals interested in working in the crypto space. After interviewing 10 candidates, we found the perfect fit for our team. The platform was easy to use, and the team was incredibly responsive and helpful throughout the hiring process. As a consumer web3 startup, we highly recommend CryptoJobsList for any company looking to hire top talent in the crypto industry.


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We've had a first round of interviews with 5+ applicants from CryptoJobsList and, like last time, it has been our best source of leads. We are still in the process of doing a second round of interviews and anticipate closing the role in the next week or two.


HR DirectorP2P.org
At P2P.org, we recognize the importance of connecting talented individuals with exciting opportunities in the dynamic and ever-evolving world of cryptocurrency and blockchain. As a company at the forefront of the blockchain and crypto revolution, we know the importance of connecting with top talent in the industry. That's why we consider CryptoJobsList to be an invaluable resource for finding and attracting the best and brightest minds in this field. It has proven to be a valuable and effective tool in our hiring efforts and we are grateful for the opportunities it has presented us.


Co-Founder & CEOWalletChat
We have already made several hires via CryptoJobsList. So far, we are happy with each one of them. CJL offers an easy to use platform and the candidates we receive are generally well versed with and a good fit for the web3 space — which is a challenge when hiring via traditional platforms. On top of this, the team has been super responsive whenever we've tried reaching out and we feel like we are talking to a friend. Excited to keep seeing CJL grow together with us, as we deliver the future of wallet-to-wallet messaging!


Founder & COOAavegotchi | Pixelcraft Studios
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Chief of StaffUMA Project
We recently switched to using CryptoJobsList as our primary crypto job board provider, and I have been pretty impressed thus far with the talent coming through. The latest feature of having a dashboard is a game changer, so thank you!


Co-founderFloating Point Group
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Co-founder & HostEpicenter Podcast
I'd recommend using CryptoJobsList if you're looking to hire someone in crypto, they cater to a number of different skill sets including marketing and community sales and business development traders and of course, developers and engineers. We hired our CMO here!


Head of People OperationsStatus
What made CJL stand out from other options? The availability oftalent that was really passionate about working in the crypto space. We received 150+ applications, interviewed 10 and hired the one from CryptoJobsList.


Head of GTMMimic Protocol
Crypto Jobs List made the hiring process much easier and delivered a lot of quality candidates to choose from. We ended up hiring one of them, so definitely a good result!


Chief of Staff & SVP SalesTheStreet / Roundtable
CryptoJobsList has been great! About to hire 1 new rep and considering countless others as well.


Co-Founder and COOMultiverse
The application quantity is much more than anticipated! We also found several attractive candidates. The salary, location, and skill set range is very broad, making finding the right person for the job pretty easy. It’s not the first time we post an open position here, and that won’t be the last.


Co-Founder and COOStickies
We hired our Head of Social through CryptoJobsList and received an impressive talent pool of over 80 passionate individuals interested in working in the crypto space. After interviewing 10 candidates, we found the perfect fit for our team. The platform was easy to use, and the team was incredibly responsive and helpful throughout the hiring process. As a consumer web3 startup, we highly recommend CryptoJobsList for any company looking to hire top talent in the crypto industry.


Co-Founder, Head of Product & OpsID8R
We've had a first round of interviews with 5+ applicants from CryptoJobsList and, like last time, it has been our best source of leads. We are still in the process of doing a second round of interviews and anticipate closing the role in the next week or two.


HR DirectorP2P.org
At P2P.org, we recognize the importance of connecting talented individuals with exciting opportunities in the dynamic and ever-evolving world of cryptocurrency and blockchain. As a company at the forefront of the blockchain and crypto revolution, we know the importance of connecting with top talent in the industry. That's why we consider CryptoJobsList to be an invaluable resource for finding and attracting the best and brightest minds in this field. It has proven to be a valuable and effective tool in our hiring efforts and we are grateful for the opportunities it has presented us.


Co-Founder & CEOWalletChat
We have already made several hires via CryptoJobsList. So far, we are happy with each one of them. CJL offers an easy to use platform and the candidates we receive are generally well versed with and a good fit for the web3 space — which is a challenge when hiring via traditional platforms. On top of this, the team has been super responsive whenever we've tried reaching out and we feel like we are talking to a friend. Excited to keep seeing CJL grow together with us, as we deliver the future of wallet-to-wallet messaging!


Founder & COOAavegotchi | Pixelcraft Studios
We've got a really strong looking shortlist and will be having calls all through this week with those. I'm quite pleased with the results!


Chief of StaffUMA Project
We recently switched to using CryptoJobsList as our primary crypto job board provider, and I have been pretty impressed thus far with the talent coming through. The latest feature of having a dashboard is a game changer, so thank you!


Co-founderFloating Point Group
Kevin here, founder of Floating Point Group. I just wanted to say that you guys are killing it. Some of our best applicants are coming from your site. Very happy with what we’re seeing so far!


Co-founder & HostEpicenter Podcast
I'd recommend using CryptoJobsList if you're looking to hire someone in crypto, they cater to a number of different skill sets including marketing and community sales and business development traders and of course, developers and engineers. We hired our CMO here!


Head of People OperationsStatus
What made CJL stand out from other options? The availability oftalent that was really passionate about working in the crypto space. We received 150+ applications, interviewed 10 and hired the one from CryptoJobsList.


Project LeadTHORChain
We received over a dozen high-quality job applications in less than a week to this post. It has been very effective and would highly recommend. Service is excellent, UX simple. Thanks CryptoJobsList!


General ManagerMeld Gold
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Communications LeadKleros
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Cofounder & COOFleek
We've gotten great leads for developers from CryptoJobsList. I'm definitely a continuous user going forward!


Founder & CEODataStreamX
The quality of the candidates are by far more relevant and experienced than on other boards. They are in the crypto space and have the past experience to hit the ground running.


Co-founder & COOAID Technology
Each time their services have been nothing short of exceptional. The platform has consistently provided us with a large pool of qualified candidates for various roles within our company. The user-friendly interface and the efficient recruitment process has made it easy for us to fill positions quickly and effectively. We are grateful for the help and support provided by CJL and highly recommend their services to anyone looking to fill roles in the crypto industry.

Marketing & Communications DirectorAdel
We posted on CryptoJobsList looking for marketing help with community engagement, digital marketing and social media and found two highly qualified candidates within days! We interviewed and hired them within three weeks.


Project LeadTHORChain
We received over a dozen high-quality job applications in less than a week to this post. It has been very effective and would highly recommend. Service is excellent, UX simple. Thanks CryptoJobsList!


General ManagerMeld Gold
Great experience. We have had excellent candidates via Raman and the CryptoJobsList platform. Will definitely use again as we build out other components of the team!


Communications LeadKleros
CryptoJobsList drives more qualified leads than AngelList!


Cofounder & COOFleek
We've gotten great leads for developers from CryptoJobsList. I'm definitely a continuous user going forward!


Founder & CEODataStreamX
The quality of the candidates are by far more relevant and experienced than on other boards. They are in the crypto space and have the past experience to hit the ground running.


Co-founder & COOAID Technology
Each time their services have been nothing short of exceptional. The platform has consistently provided us with a large pool of qualified candidates for various roles within our company. The user-friendly interface and the efficient recruitment process has made it easy for us to fill positions quickly and effectively. We are grateful for the help and support provided by CJL and highly recommend their services to anyone looking to fill roles in the crypto industry.

Marketing & Communications DirectorAdel
We posted on CryptoJobsList looking for marketing help with community engagement, digital marketing and social media and found two highly qualified candidates within days! We interviewed and hired them within three weeks.