About Blocksize Capital
Blocksize Capital makes the DLT- and Blockchain-based asset market accessible for financial institutions. Our software solution delegates all tasks and challenges related to managing Digital Assets, ranging from trading and reporting to managing an entire portfolio. Our clients consist of asset managers, family offices and institutional investors.
About the job
As a Backend Developer you will be joining our development team focusing on extending and maintaining our backend infrastructure. Your main tasks will include to consolidate and interface with different blockchains, exchanges and third-party data providers to provide a unified API to be used by our clients or the in-house-developed trading frontend. You will help us to continuously improve our robust and low-latency infrastructure capable of handling large amounts of data while remaining highly scalable under different demands.
Our tech stack
Your profile
Requirements
Nice to Have
What we’re offering
If we’ve got you interested, apply now to learn more about Blocksize Capital and the role!
For our startup we are looking for a Java Developer who knows what’s going on and who is a good addition to our highly skilled development team. We have space for people who like to focus on one area to become the goto person in this area as well as people who need a new challenge every now and then. People who have new ideas are more than welcome.
Responsibilities: - Work on the development of our disruptive platform for esports data distribution - Help us to improve and expand our OCR plattform - Work together with our DevOps team to make our system more reliable. - Work together with our Data Scientists to improve our data pipelines - Create APIs to deliver our data to customers - Have an eye for improvements in regards to performance and code quality
Requirements: - Strong understanding and moderate (3+ years) experience working with Java, and within a Java environment. - Moderate experience with both relational and non-relational databases - Moderate experience writing and working with a service-based architecture. - A fast learner who is highly motivated and independent, but also works well as part of a team. - Output-oriented way of working - Good problem solving skills (able to break down problems and troubleshooting bugs effectively) - Fluent in English (both written and spoken)
Pluses: - Experience with Python, Go-lang or Scala - Experience with Hibernate, SpringBoot, Akka, Gradle - Experience working with distributed messaging queues (RabbitMQ, Kafka, Pulsar) at enterprise scale - Experience with cloud-based deployment: AWS (or similar), Docker, Kubernetes. - Experience with game engines: Source Engine, Unreal Engine, Unity. - Experience with OCR technologies - Any skills or experience in reverse engineering computer games. - Passion for esports, gaming, and technology
We offer you: * A "get shit done" culture * Flexible working hours based on goal reaching rather than amount of time spent in the office * 10% of your work time to spend on esports and/or gambling topics of your choice (alone or as a team) * Internal training sessions in your field of profession and beyond * Gaming room stocked with 6 PCs to play and crush enemies with your colleagues * Bayes bar with free snacks and after work beers * Free massage sessions * Subsidized lunches that get delivered to the office * Free coffee, water & soft drinks to stay focused and hydrated * Lots of game enthusiasts to talk and share game experiences with
We look forward to receiving your application (cover letter, CV and references) as well as your salary requirements and earliest possible starting date. Please send an email containing this information to: application@bayes.gg.
This job posting is no longer available
Based on our working product we would like to improve our cross-technology blockchain application for access rights and need a team member who drives the development right from the start. Therefore, we need support in the development of a blockchain based access management solution with following focus areas: • Set up and maintenance of a decentralized network • Programming of the function to create and share cryptographical access permissions • Communication to terminal devices via Bluetooth, NFC and WIFI • Integration of the web solution and of the mobile application • Coordination between different divisions as Backend Development, IT-Operations and Mobile App Development.
We are searching for a (Senior) Full Stack Developer who works on the overall solution including the development of the relevant SDKs for mobile applications. Therefore, interests and competencies in following areas are relevant: • Programming languages: Java, C, C++, JavaScript, C#, Golang, Swift • Understanding the architecture, design, and implementation of Blockchain systems, distributed ledgers and smart contracts • Cross-cutting operating systems: Mac, Windows, Linux • Cryptographical algorithms and security considerations • Experience with Bluetooth/BLE, p2p networks and/or file exchange is a big plus • Knowledge about continuous integration and unit tests • Familiar with Git as the version control system and first experiences with agile software development, e.g. Scrum • Additional competencies in Application Deployment, Scaling, Management and Continuous Delivery (Docker, Ansible, Kubernetes, etc...)
On top of that, we are searching for a team member, who is eager to learn, switch contexts and share his/her knowledge within the team. At the same time, he/she is able to take responsibility in a growing team and have some experience as mentor and decision maker.
We‘re looking for a Back-End Developer (Golang) capable of taking mobile application design to the next level. Because you’re joining us at the beginning of our journey, you’ll have the unique opportunity not only to shape your role at Quoori, but also part of the DNA that Quoori will be known for.
As our Back-End Developer, you’ll
Who You Are
You're a brilliant problem solver, quick grasp, self-starter, and excellent communicator with a passion for your work. We’re looking for someone who’s excited about being part of our journey.
Position Requirements (must haves)
2+ years of experience as a back-end-developer
Must have experience with server-side-programming-languages (Golang, Java). Most interesting to us is hands-on Golang experience.
Experience in multi-cloud architecture and knowledge of edge computing
Experience in designing, deploying and running 24/7 services at a production level
Creative problem solving; independent (and team!) thinking; great communication skills
Basic knowledge of emergent technologies like Machine Learning and Big Data
You should be business functional in English as we are located in Hamburg with our corporate headquarters in San Francisco. There is a potential opportunity for travel to the US.
Nice to Haves
Linux experience
AWS (Amazon Web Services)
GCP (Google Cloud Platform)
This job posting is no longer available
Join our team as a Backend Engineer and take an active role in shaping our engineering culture and the future of our platform. You will work in an effective, autonomous feature-based team, where you will get to play out your dev skills in a high-impact driven environment. You will be responsible for the full cycle of feature development in your team ("You build it, you run it"), and take part in architecting the backend of our complex, mission-critical HR Operating System.
Your profile
Why us
This job posting is no longer available
collectAI provides receivables management, covering the end-to-end process from e-invoicing and dunning to debt collection. Focusing on digital communication channels, automation and machine learning gives our solution an edge over traditional approaches. We communicate with customers via their preferred channels, at their favored time and they are able to pay easily. Companies benefit due to higher customer retention rate, reduced costs and improved repayment rates.
collectAI was founded in 2016 and is part of Germany’s largest e-commerce retailer, the Otto Group. Our international team currently consists of 30 professionals mostly working in our Hamburg office.
About the job
We are looking for a (Senior) Software Engineer to join our Berlin based engineering team: You will be creating, improving and operating micro-services written in Go and JavaScript as well as contributing to tools and systems that enable other teams to deploy services quickly and operate them reliably.
Our architecture is currently based on micro-services written in JavaScript, Python and Go. We use NATS for event streaming and utilize AWS' RDS in our persistence layer. Services are deployed in Kubernetes and monitored with Prometheus. We build our frontends mostly with React.
Basic Qualifications
Preferred Qualifications
Benefits
This job posting is no longer available
collectAI provides receivables management, covering the end-to-end process from e-invoicing and dunning to debt collection. Focusing on digital communication channels, automation and machine learning gives our solution an edge over traditional approaches. We communicate with customers via their preferred channels, at their favored time and enable them to pay easily. Companies benefit due to higher customer retention rate, reduced costs and improved repayment rates.
collectAI was founded in 2016 and is part of Germany’s largest e-commerce retailer, the Otto Group. Our international team currently consists of 30 professionals mostly working in our Hamburg office.We are looking for a (Senior) Golang Software Engineer / Site Reliability Engineer to join our Berlin-based engineering team: You will be creating, improving and operating micro-services written in Go as well as contributing to tools and systems that enable other teams to deploy services quickly and operate them reliably.
Our architecture is currently based on micro-services written in JavaScript, Python and Go. We use NATS for event streaming and utilize AWS' RDS in our persistence layer. Services are deployed in Kubernetes and monitored with Prometheus. We build our frontends mostly with React.
Basic Qualifications
Strong problem-solving skills
Good understanding of computer science fundamentals
Passion for clean, simple and robust code
Solid knowledge of Go
Preferred Qualifications
Exposure to Docker, Kubernetes and Prometheus
Experience with JavaScript
Knowledge of micro-service principles and best practices
Benefits - Regularly visit our headquarter in Hamburg's beautiful Hafencity - Shape our Berlin-based team as one of its first members - Well-funded and part of Germany's largest online retailer, the Otto Group - Option to partially work remotely - Budget for conferences, books, trainings etc. - Free choice of hardware and software
This job posting is no longer available
We’re Hackmind. Welcome.
We fund and support scientists & engineers to build decentralized AI startups from ideation to launch. Hackmind is an AI-focused incubator in Berlin, the capital of cryptocurrency. We invest in raw technical talents with ambitious visions and risky ideas to transform slow industry using AI and decentralized approaches.
This is Hackmind. Adventure awaits you…
We are looking for a software developer to help build trading systems and trading tools used in the management of hackmind portfolio.
Responsibilities: You will build architect the hackmind execution trading platform You will work very closely with our traders to develop a number of different algorithmic execution solutions to help limit market impact Management and execution of connecting to new exchange API’s Management of hackmind data capture and storage of historical data Analysis of liquidity across numerous different exchanges and liquidity pools Help build tools to visualize hackmind portfolio and trading activities
Requirements:
Mastery of C++, Golang, Rust or a similar low-level language Experience with python Experience developing in low-latency systems Experience with computer security Experience in cryptocurrencies is a plus Experience with distributed systems Interest in trading and markets Excellent communication skills Enjoy working with a lean team in a fast paced environment
WalletConnect is the open-source web3 standard to connect blockchain wallets to dapps. Started four years ago, our mission is to make web3 accessible to everyone. Every month, millions of people use WalletConnect in over 200 integrations.
We’re looking for a backend golang engineer to join our team to build and scale our network. To help grow web3, we recently launched WalletConnect 2.0 with new features, including multi-chain support, a decentralized back-end, faster connections, and 10x performance and scalability. You will help us expand and scale our backend messaging infrastructure.
To learn more about our plans for 2.0, take a look at our recent presentation at EthCC. https://www.youtube.com/watch?v=8cBIw7lFNnU
You will be responsible for building Golang messaging services. A main challenge is growing our services to scale for our millions of users across billions of websocket connections every month, as well as ensuring security and resiliency.
To help with your role, you will have the support of our devops team to deploy and manage our infrastructure, will work closely with our protocol and SDK teams, and have exposure to the full WalletConnect stack.
The ideal candidate is immersed in the best practices of golang at scale, messaging systems and Websockets.
Responsibilities:
Must have:
Nice to have:
What WalletConnect offers:
We are looking for a (Senior) Backend Engineer with experience in Golang (f/m/d) to join our Global Contact Center Tech team to address our customers', riders', and restaurants' support issues quickly and with as little friction as possible which is crutial to our ability to create an amazing experience for our users.
In order to achieve this goal, we are building our own Automation & Support Platform to manage in-app support, self-service flows, transactional communication, automation of business processes, and other technologies that make ticket resolution more seamless: from the moment a user enters the customer support in the App, to making sure we have sufficient customer service agents available to solve the problem in a fast matter, and anything in between.
Your mission:
Your heroic skills:
Extensive experience with:
Other requirements:
Our stack consists of:
*Why Delivery Hero?*
Develop your skills with your educational budget for conferences and external trainings.
Exchange ideas and meet fellow developers at regular meetups, in our active guilds and during our Global Developer Exchange Program.
Join company parties, hackathons, cultural and sports events.
Work in diverse teams with colleagues from across the globe in English.
Save responsibly with our corporate pension scheme.
Daily fruits, cereals, beverages, tea and coffee in our lounges.
Learn German with free classes, access our e-learning platform and participate in our inhouse trainings.
Enjoy massages, get your haircut in the office, join our free yoga classes or take a timeout in our nap room.
*About us:*
Delivery Hero Tech is playing an exceptional role in the large growth of our company. Our Tech teams leverage a diverse stack to create cutting-edge solutions which cover the full customer experience - starting with a great online search experience and ending with a real-time delivery at your doorstep.
Read about the latest updates from our Tech & Product teams on our blog.
Delivery Hero is building the next generation global on-demand delivery platform. We have grown rapidly from inception in 2011 to become the world's largest food-ordering network and we’re now innovating and creating new verticals such as groceries, pharmacies, flowers and other convenience articles in multiple markets.
Our awesome international team already operates in 40+ countries worldwide and we are looking for the most talented people to join us on our mission to ‘always deliver an amazing experience.’ If you’re an enthusiastic problem solver and hungry for a new adventure, an exciting job and multicultural workplace is waiting for you in the heart of Berlin!
At Delivery Hero, we believe diversity and representation is key to creating not only an exciting product, but also an amazing customer and employee experience. Fostering this starts with hiring -- therefore we do not discriminate on the basis of race, religion, color, national origin, gender, sexual orientation, age, marital status, or any other aspect that makes you, you.
**Have we caught your attention? If you are looking for an environment where our company DNA is defined by our values, please send us your CV.**
Find out more information on how to prepare for you technical interview here.
We’re looking forward to your application!