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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
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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
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trecker.com is an AgTech startup that digitizes the oldest industry in the world – agriculture! Our software-as-a-service delivers professional enterprise resource planning. It assists farms in keeping track of their business, improves operations and identifies optimization potential by crunching data.
Increasing agricultural innovation & technology is talked about being the most promising way to soon feed 10 billion people. Today, agriculture is a $3,1 tn market with an investment growth in AgTech equaling that of FinTech.
Within the last 6 years we were able to establish a solid position in the German market. While we're going to scale our multi-service platform by adding new functionalities we take on the challenge of synchronizing data, orchestrating microservices and keep them maintainable using docker containers on AWS (soon also with Kubernetes)!
Join us in our mission to become the most recommended software in agriculture worldwide and help farmers save time, money and nerves.
Reasons to join trecker.com
Your playground
You fit perfectly if you
Our current tech stack: Rails 4x, Go, React, iOS Swift 3, Android, Postgres, ElasticSearch, REST api, Microservices, Realtime web, AWS, Grape, Webpack, Swagger, Scrum, Jira
At trecker.com we welcome engineers who find smart solutions for complex problems to help farmers say “Hello simplicity, bye bye paperwork!” :-)!
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PubNative is a mobile publisher platform that serves native ads via a scalable and flexible API for mobile apps and web. Our publisher-first approach focuses on the specific needs of each publisher across all verticals. Our ad serving technology is used by developers and publishers around the world.
Our system consists of a myriad of high load Golang-based APIs, iOS SDKs, Ruby/Rails 5 dashboard, Scala and Spark data- and ML pipelines, Druid OLAP system, running on a Mesos and Kubernetes cluster.
We're always on call to keep our networks up and running, ensuring our users have the best and fastest experience possible. We follow “Infrastructure as Code” model and immutable deployment strategies.
We are looking for a Site Reliability Engineer (m/f) to help us build and operate infrastructure platforms, and provide technical consultancy to engineering teams on how to build reliable, scalable and efficient services.
Our Responsibilities: - You help us build a hybrid, poly-cloud-provider environment - You help to design, develop and operate monitoring, tracking platforms - You drive scalability and operability of supported systems/infrastructure - You participate in on-call rotation and be on-call for the services you build and support - You work with other teams to provide consultations in systems architecture support for new and existing production systems - You write code so that you can automate tasks, support SLA for Production Systems, you support other engineering teams on reliability, scalability and efficiency topics - You manage OS image/templates via Packer, provision infrastructure via Terraform - You support CI/CD and make new pipelines - You engage in and improve the whole lifecycle of services—from inception and design, through deployment, operation, and refinement - You support services before they go live through activities such as system design consulting - You maintain services once they are live by measuring and monitoring availability, latency, and overall system health
Our Requirements: - 3+ years of experience in a Site Reliability role/Full-stack developer - Experience with public cloud providers (AWS, Google Cloud, Digital Ocean, etc.) and Infrastructure as Code (Terraform) - Strong programming skills and familiarity with modern programming languages: Go, Ruby, Python, Shell etc. - Knowledge of managing docker containers and microservices via Kubernetes - Experience building and monitoring systems and metric collection pipelines - Track record of building automation and solving multi-datacenter/clouds infrastructure problems - Knowledge of algorithms, data structures, complexity analysis, software design and reverse engineering - Interest in designing, analyzing and troubleshooting large-scale distributed systems - Experience working with source control - Git - Experience with continuous integration platforms such as TeamCity, Jenkins, CircleCI etc. - Understanding of Agile, DevOps practices such as CI/CD, automated testing etc.
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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
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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
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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
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With Glassnode we are bringing transparency to the blockchain and cryptocurrency space. Glassnode builds applications that provide new ways of delivering crystal clear insights into blockchains and cryptocurrencies.
At its core, Glassnode is a data analytics tool that aggregates and visualizes a large number of different data sources. With a particular focus on blockchain data and user-centric interfaces, we aim at delivering intelligible, actionable and unique insights from the crypto world, helping investors to make educated decisions in the overly emotional and irrational market, as well as equipping blockchain teams with valuable insights on their projects and tokens.
The Role
We are searching for a driven and proactive backend engineer with a strong DevOps experience ready to contribute in taking the existing product to the next level. You would be expected to take over multiple DevOps tasks, contribute to the development of APIs, microservices, and new features, all in the context of a distributed system with a high load of data from blockchains and cryptocurrencies.
We would like to hear from you, if:
Your Choice
Joining the project, you embark on a challenging journey shaping the innovative product in a revolutionary sphere of blockchain and cryptocurrencies. You’ll have a chance to develop professionally and personally, work on unique and challenging problems of data collection, distributed systems, and high scalability.
What we offer
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Beaconinside is a startup based in the center of Berlin. Our goal is to build the next generation of indoor location services, connecting the Online and the Offline. We develop our own iBeacon hardware and software solutions to help companies enrich their iOS and Android mobile experiences with location-based content. This way offline customers will become mobile users, and mobile users will become customers.
Beaconinside was founded by experienced mobile and retail experts. We are now looking for technical talent - a Golang or Mobile wizard - for immediate hire to support our passionate engineering team in Berlin.
Your Responsibilities • Heading the software development of our campaign management platform, based on best-in-class Google cloud platform technologies. You will directly report to the CTO.
• Lead cross-platform initiatives to align mobile, web and backend development
• Responsible for the overall software architecture and connecting the dots between our iBeacon hardware and firmware, the backend services and our mobile APIs and SDKs
• Work with engineers, product management and QA to develop and meet functional and nonfunctional requirements on schedule
• Take ownership about setting up a learning development organization, i.e. coordinate workshops, hackathons and conference visits.
• Manage junior software developers and coordinate code reviews and pair programming
• Support rollouts and be available for on-call duties to resolve production issues
• Write clean, well-structured and maintainable code
• Investigate new technologies and development methodologies
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You will provide leadership across Back-End Engineering and help guide the overall engineering vision for our MicroServices Architecture. You will lead and participate in architecture discussions with our architects and platform team to help define the core platform APIs to support our Mobile and Web Apps. You will participate in design reviews and recommend improvements. You will be part of a team that is committed to writing test-backed, clean and reusable code. You will recommend improvements and create consensus through self-confidence, clear communication and the technical skills to back your decisions. You think that polyglot developers are the future and have a passion for elegant, readable and maintainable code.
We have a cutting-edge microservice architecture and use the following technologies: Python, Golang, Linux, Docker, RabbitMQ, nginx, Amazon AWS, REST-ful APIs, JavaScript & Angular.js, ReactJS, HTML5, CSS3, git, SQL (PostgreSQL).
Required Skills:
• 7+ years of professional development experience ideally using Python, GO or similar languages • Experience building large-scale business critical SaaS applications with MicroServices Architecture • Established technical leadership, interpersonal and organizational skills • Understanding of Service-Oriented approach, Domain-Driven Design, S.O.L.I.D. principles • Experience collaborating with other Engineers in planning, prioritizing and executing assigned tasks within deadlines • Assist in risk assessment and mitigation activities • Experience providing trainings and mentoring other Engineers • Strong problem solving, critical thinking, and analytical skills • Strong English communication skills • Experience with Git
Extra special things we'd love to see:
• Familiarity with software design patterns • Experience solving business problems in a variety of programming languages • Experience in Agile methodologies, especially Scrum • Experience in building ecommerce systems
Apply here: http://grnh.se/05ctx2