At HelloFresh, our mission is to change the way people eat - forever. From our 2011 founding in Europe’s vibrant tech hub Berlin, we’ve become the global market leader in the meal kit sector and inspire millions of energised home cooks across the globe every week.
We offer our meal kit boxes full of exciting recipes and thoughtfully sourced, fresh ingredients in more than 10 countries, operating from offices in Berlin, New York City, Sydney, Toronto, London and Amsterdam. Our more than 4,000 employees are the heart and soul of our highly international, fast-paced, and dynamic environment where innovation and smart, fast action is encouraged.
Our Engineering, Data, Product and Security teams are located in Berlin and New York and are critical to what we do. From procurement tools, to conversion rate optimization, live pricing tools, payment services and add-on upselling features, we work on challenging problems and have a high output of building and releasing features and engines that make our business thrive and deliver real financial impact.
You can get a taste of what we've been working on by checking out our tech blog.
About the job
Who we are looking for
Interacting with front-ends, designers, product managers and our teams around the world is very much part of our day-to-day, so communication skills are vital. We are looking for strong problem-solvers who can apply their engineering skills to a wide range of the platforms and environments we support.
What we offer
Are you up for a challenge?
Please submit your complete application below including your salary expectations and earliest starting date.
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Job Description
We are looking for awesome backend developers to join our Berlin team at Herdius. We are a blockchain startup working on a decentralized financial platform tailored specifically for cryptocurrencies. Our goal is to create a new, highly scalable blockchain that can act as a transaction and identity layer on top of all blockchains. The vision for Herdius is to create the central cryptocurrency financial hub of the space. Since we are developing our own chain as well as are working on brand new technology there will be a lot of room for you to play around with new consensus mechanisms, blockchains, distributed systems design, governance mechanism design, order routing, etc.
Responsibilities:
Implementation and design of Herdius’ consensus algorithm and p2p routing protocol Writing reusable, testable, and efficient code Design and implementation of low-latency, high-availability, and performant applications Integration of data storage solutions as well as distributed data storage solutions Creation of an efficient crypto exchange orderbook capable of handling thousands of transactions per second Creation of Governance / voting systems Working on our distributed virtual wallet network that implements distributed key generation with homomorphic encryption
Requirements:
4+ years of experience as a backend developer, preferably in C/C+, Golang or Scala Strong proficiency with Golang, preferably including p2p libraries and leveldb (or similar) Understanding the nature of asynchronous programming and its quirks and workarounds Understanding accessibility and security compliance User authentication and authorization between multiple systems, servers, and environments Efficient integration of cryptographically encryption schemes Understanding fundamental design principles behind various consensus algorithms Understanding differences between dPOS, DAGs, Plasma, BFT, aBFT, etc. Past experience with ANY blockchain / crypto related projects is a huge plus Implementing automated testing platforms and unit tests Proficient understanding of code versioning tools, such as Git Experience with other languages such as Javascript or Python Strong passion for Bitcoin and other cryptocurrencies
What to send:
Links to your GitHub/Stack Overflow/Portfolio/something awesome you've built that you’re proud of A resume or LinkedIn profile Cover letter