Golang Open Systems AG Jobs in Germany

Job Description

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

Job Description

Who we are The future of transportation is Green. Here at FlixMobility Tech, the R&D group, we develop software with the brightest minds from around the world to engineer new experiences for our millions of customers across our apps and websites. Every day we solve challenging problems, like how to scale rapidly around the world and how to make an experience that delights our customers. We have a culture of sharing ideas, contributing to open source projects and being an active member in our technical communities.

To support our team we are currently looking for DevOps/Cloud/Platform Engineers (m/f/x) to join our Platform team in Berlin as soon as possible.

Your tasks - Paint the world green Paint the world green! Build our cloud! Design, deploy, monitor and maintain our infrastructure that hosts flixbus.com and the services it depends on, which is comprised of multiple Kubernetes clusters on AWS (provisioned with Terraform) and a private data center (running Debian on bare metal). Don't repeat yourself! Automate everything through our configuration management using Puppet and Ansible. Speak freely! Develop ops-related solutions, preferably in languages like Python, Golang, Lua or Ruby. Go team! Educate and support other teams to enable them to fully utilize our stack. Share the wealth! Contribute to open source projects (e.g. Kubernetes, Openresty and many more) or open-source our own projects Decisions, decisions...Evaluate interesting new technologies and come up with strategies to implement them. Don't panic! Spot and troubleshoot problems with our monitoring (Prometheus/Grafana) and use your insights to improve our disaster recovery plan.

Your Profile - Ready to hop on board Experience with cloud architectures (AWS, IaC) Good Linux skills (2+ years) Good containerization (Docker) skills Solid networking and database skills Experience working with multiple development teams Excellent communication skills Be result driven and value oriented Fluent in English

Perks - More than just a job Drive change. With innovation and smart technology, we are changing the way people travel, and you too can have an impact on this ride. Everyone is equally important and works together on uncharted challenges alongside inspiring colleagues from all over the world. Trust-based working. We don't punch the clock – organize your own schedule. We trust in what you do! Fun at work and beyond. Discover the world with your free FlixBus rides and join our regular team events – there's always something to celebrate! Feel at home. We provide you with a comfortable working space, free drinks, casual dress code, diverse employee discounts and more.

So if you are passionate about the new stack and want to keep up with the promising emerging technologies, FlixBus is the place to be. Apply now!

Job Description

As a Go Engineer you will support the ongoing development of our microservice infrastructure for plyd.io or impfterminradar.de and support our customers developing their cloud infrastructure/services.

WHO WE ARE

We are a young cloud startup from Stuttgart, Germany dedicated to work on the infrastructure of scalable SaaS products.

WHAT YOU WILL DO

• Write Go services
• Help us to develop a FAANG grade build tool
• Support us in Consulting projects
• Lead Junior Go developers

WHO YOU ARE

• Passionated Go developer with experience in other system programming languages like C++, Rust or Java.
• Experience with AWS,GCE or Digital Ocean.
• Experience with frontend development (React, VueJS, Svelte)
• A will to learn the newest cloud technologies regularly
• Nice to Have: Open Source Projects

WE PROVIDE

• Remote friendly infrastructure
• Engineering Culture
• Coffee and Drinks
• Work on Open Source Projects
• 30 vacation days

This position can be done 100% remotely. With some personal meetings from time to time.

Want to fund your own company, but not feeling ready? Come and get your hands dirty with us and we support you as soon as you feel ready to make the next steps.

Job Description

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

• Add features to and refactor existing code on our bidder while maintaining a sub 100ms response latency.
• Build real-time processing pipelines to transform, aggregate, and ship data both internally and to external partners.
• Develop supporting systems and infrastructure for machine learning research, such as model repositories, feature stores, and training environments.
• Decide on appropriate metrics, logging, and alerting to ensure our distributed system stays in sync and operational 24/7/365.
• Work in a hybrid environment that mixes on-premise with cloud based infrastructure (mainly AWS and GCP).

Requirements

• We are not concerned with what kind of certificates and diplomas you have acquired so far if you are able to pragmatically solve a problem.
• A good understanding of underlying software development and computer science concepts.
• Previous experience with, or a strong desire to learn, the Go programming language.
• Analytical skills for performing exploratory work, combining data from multiple sources to find patterns.
• Interest in developing solutions for problems inherent to globally distributed real-time systems.
• Previous experience building and working with machine learning infrastructure is a plus.
• Ownership of your work - build it, deploy it, fix it, monitor it, repeat.
• Ability to communicate ideas, technical concepts, and analysis results in a meaningful way to non-technical colleagues.

Our Promise

• Team that values good engineering practices, lean processes and simplest working solutions
• Opportunities to learn and expand your skill set
• Mentorship program for technical and non-technical skills
• Work when and where it best fits you either from home or our brand new office
• Generous remuneration package including virtual shares, a dedicated education budget and end of the year bonus
• Travel to our offices around the globe for a short term assignment for up to a month each year
• Comfortable work setup - laptop, phone, screen(s), standing desk etc.
• Support for your setup while working from home

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!

Job Description

About the Company OptioPay is working on an exciting greenfields customer facing product. We need you to build it with us and to help us go live later this year. It’s an exciting time to join the team, as you will be working on what will become a game changing experience for customers everywhere. Openbanking data plays a big role in our future, and we are very excited to work with you to ensure that customers everywhere are finally rewarded financially for the data that they generate in their day to day lives. Help us create an openbanking revolution!

What will you do

• To architect, design, develop, deploy, evolve, and operate distributed systems in a DevOps way
• To be an integral part of an empowered and self-organizing team
• To actively collaborate with other engineers, product owners, domain experts and designers to deliver great outcomes
• To pair with others and review work, sharing knowledge and increasing quality across the board
• To scale our reach by integrating our platform with more banks, PSPs, insurance companies and other financial systems
• To champion continuous improvement of technology and the ways we work

What are we expecting from you

• You have at least 5 years of professional experience as a Software Engineer
• You can build and debug reliable, high availability, secure and performant distributed services in Golang
• You care about quality and know when and how to ship code safely
• You have a solid understanding of system design, data structures, and algorithms
• You are experienced with deploying and operating services on Linux
• You can reason and drive technical decisions
• You love to experiment and use data to drive decision-making
• You get inspired, think of new ideas and like to share them with others

Why OptioPay

• Talented team of 60 people from 20 different countries
• OptioAcademy – knowledge sharing
• Flexible working hours
• Your favorite birthday cake
• Free lunch every Wednesday
• Highest office in Berlin
• OptioPay-branded football table
• Fresh fruits every week
• Free club-mate, coffee and tea

Interview Process

• HR Call
• Backend Coding Challenge
• Technical Interview
• Meet the Team
• Offer

Job Description

At Upvest, we are building the financial infrastructure of tomorrow. Our vision is to create a world in which any asset can be owned and traded digitally by anyone, anywhere. Our bold long-term view is backed by Europe's largest tech VCs Notion Capital, Partech and Holtzbrinck Ventures. Today, we count 22 talented people from 10 different countries and we want to keep expanding our international Upvengers team.

Your mission:

We are seeking a full-time backend engineer to build a securities API for financial institutions, the first such API in Europe. Your goal is to take ownership of designing, developing and maintaining microservices written in Golang.

A greenfield project. Cutting edge technologies. No legacy code.

This role will give you the opportunity to:

• Build fault-tolerant, horizontally scalable systems. Using Microservice architecture powered by Docker, Kubernetes, Kuma service mesh and Kong as a Gateway.
• Build event driven applications using NATS
• Work on different aspects of our API-product portfolio as part of the development team
• Develop data processing and storing mechanisms
• Work on improving the reliability of our API tools, as well as developing innovative tools
• Work with an agile methodology: in the end of the 2-weeks sprint cycle we have a demo with retrospective to make our software delivering faster

Requirements:

• At least +2 years of experience and passion about Golang and distributed systems
• Fluency with SQL databases such as PostgreSQL, transaction isolation, performance optimization
• Fluency with event driven architecture and concurrent algorithms
• Be proactive in learning new stacks and have a high sense of taking ownership
• Excited to work in a fast-paced and dynamic startup environment

Nice to have:

• Experience with Docker, k8s, understanding principles of a service mesh
• Experience with Monitoring and Tracing using opentracing/opencensus/opentelemetry/elastic APM
• Understanding of encryption algorithms and their application
• Experience working in Fintech domain

Job Description

OneFootball is the ultimate media platform that enables football fans to get their daily dose of news and scores wherever they are, created by a team of professionals from more than 25 different countries. With +30 engineers based in the heart of Berlin, our mission is to tell the world's football stories through a stable, scalable and reliable stack to +10 Million passionate users all over the world.

We are looking for a Backend Engineer who understands how to organise multiple systems, is skilled in Golang and passionate about working on a stand alone web product.

Our main systems consist of micro service architecture with golang applications serving iOS, Android and Web clients. We have a strong foundation of shipping code through containers using cloud native technologies, such as Kubernetes. You can check our Stackshare page, too.

We believe engineers write code for other engineers and not just for machines, therefore we celebrate clean and smart code!

Your role

• Shape OneFootball’s main website by driving decisions on the backend and writing code that your co-workers appreciate for its readability and elegance
• Analyze our product requirements and business needs, improve our architecture and satisfy performance
• Work on performance of the webpage in terms of retention and acquisition, scale & roll out new features in close cooperation with other members of the Consumer Web team as well as collaborating with other engineers & stakeholders
• Be actively involved into the production process, from idea to user
• Contribute to the engineering team with knowledge sharing and code-reviews

Your profile

• You write SOLID and clean code
• You develop backend services with Go as well as fast, scalable and well-documented APIs
• You are an expert with either MySQL, PostgreSQL or Redis
• You have worked with Docker and Kubernetes and used agile methodologies
• You are interested in Web products and are keen to focus on them
• You are at ease working with other teams and you want to be the driving force for your domain
• You never stop learning and are keen to mentor others
• If we have captured your interest and you want to help us build the ultimate media platform for football fans, submit your application and join our Engineering team!

OneFootball strives for a healthy and safe workplace and is committed to building diverse teams.

Job Description

Back is a young software company from Berlin with the mission to enable companies to focus on what they do best. We're building a collaboration and automation platform to untangle repetitive questions and workflows around the workplace.

You will join our experienced engineering team to develop our platform and architecture. We like to solve complex problems with elegant and robust solutions. If you are excited about building highly scalable solutions built on a modern stack using best practices then this role is perfect for you.

This position is based in our growing HQ office in Berlin.

🔨 What you will do

• You will build APIs that the frontend developers will love and our customers will rely on.
• You will implement high quality and well-tested code that you are not afraid to push on production.
• You will deploy your code on a 100% cloud infrastructure.
• You will be curious and excited to learn new technologies required to build our product.

👩‍🔬 Who are we looking for

• You are only satisfied after developing the best software you could possibly have come up with.
• You write code that you are proud of and that your mother could understand.
• You think that code should never be pushed on production without automated tests and you will never compromise on this.
• You care about the details and are constantly willing to learn and improve your knowledge and skills.
• You enjoy working closely with product and design teams.
• You like to work in a team and challenge your choices with your peers.

🚀 Why Back

• You’ll join a company that believes in a strong engineering culture. We use modern technologies, best practices, within a team of smart people who want to change the way people work.
• You’ll have the opportunity to build great infrastructure. You can be as creative as you want as long as it creates a better product.
• You’ll get the chance to work with exciting technologies: distributed architecture, machine learning, and natural language processing.
• You'll work on a modern and robust stack: Go, gRPC, Protobuf, GraphQL, Typescript and React.
• You will team up with the founders to create a great product with your signature on it.
• We love open-source and will support you in the process of contributing to libraries we use or open-sourcing some of our work.
• You’ll join a company at an early stage and you will receive an attractive package containing salary and shares.
• You'll join an amazing team. Want to know who could be your future colleagues? Have a look here: http://bit.ly/working-at-Back

Interview Process

1. You’ll talk to Annie — she will present information about Back and ensure we are a good mutual fit.
2. You’ll talk to James, our CTO and Co-Founder. He will answer all your questions, present you background about our process and how we work at Back.
3. You’ll have a small home exercise to complete to show us that you can define simple solutions and write clean code.
4. We’ll review your code and share our feedback with you over a zoom call. We’ll ask you about the decisions you made and answer your questions.
5. You’ll meet the engineering team. We'll discuss engineering topics, have a collaborative solution design session and we’ll add a small feature to your coding challenge together. The goal is to simulate daily work, collaborate and make sure we all enjoy it.
6. You’ll meet the product and design team. They’ll show you the product, explain the strategy and answer all your questions. The goal is to make sure it’s the product that you’ll be excited about building.
7. You’ll meet Christian, CEO and Co-founder and again James. We’ll discuss your future at Back, your interest and make sure the team and culture fit well.
8. We make you an offer. You’re in!

Job Description

How do you design and implement an API that communicates with thousands of cash registers in all stores of REWE, Penny and real,-? How do you automatically transfer money between different banks?

Software Engineer (f/m/*)

We operate Germany's largest independent payment infrastructure. Customers can use different services in several supermarkets to e.g. pay their invoices and deposit or withdraw cash from their private bank accounts using smartphone apps.

In the process of further developing our systems and implementing new projects, we are looking for software engineers that meet the following criteria:

• You love coding! Software development is not just a job for you. You code on private projects as well and you are interested in the industry’s latest developments. You are fluent in at least one programming language.
• In the future, you want to program in Ruby and Go! It would be awesome, if you have already worked with these two languages but in case you have not, that is also no big deal. In our experience, developers get productive in these languages very fast.
• You are interested in the big picture! You want to know and understand how everything is connected, starting with our public APIs, to our internal services and the PostgreSQL database. It is your goal to ensure an error free operation for all our production systems through a mixture of code reviews, unit + integration tests and monitoring.

We know you are in high demand. Here is why we are different and why you will love working for us:

• Our office is located in the middle of Berlin and is easily accessible using public transportation. We will procure your preferred technical devices, so that you can code as productively as possible. We also offer flexible working hours and the possibility to develop yourself further not just in your work-related area of expertise, but in other areas as well.
• We have experts in the IT, as well as in all other departments, with excellent connections to other companies throughout Berlin and Germany. You can learn a lot of new things and experience how to build a "FinTech" from the ground up and how to establish it in the market.
• After creating a solid base of operations in Germany over the last 8 years, we plan to realize several large projects in coming months, which build upon our existing payment infrastructure.

We will be happy to tell you more about this in a personal chat.

Job Description

As a Go Engineer you will support the ongoing development of our microservice infrastruture for plyd.io and support customers developing their cloud infrastructure/services.

WHO WE ARE

We are a Cloud Startup from Stuttgart, Germany dedicated to push video analysis for amateur sport teams to the next level, with a focus on Handball.

WHAT YOU WILL DO

• Support us in Consulting projects
• Port our infrastructure to a managed Kubernetes instance
• Write Go services
• Create a Desktop App for video upload based on https://github.com/Equanox/gotron
• Lead Junior Go developers

WHO YOU ARE

• Passionated Go developer with experience in other system programming languages like C++, Rust or Java.
• Experience with AWS,GCE or Digital Ocean.
• A will to learn the newest cloud technologies regularly
• Nice to Have: Kubernetes
• Nice to Have: Open Source Projects

WE PROVIDE

• Remote friendly infrastructure
• Engineering Culture
• Coffee and Drinks
• Work on Open Source Projects
• Possibility for Equity
• 30 vacation days

This position can be done 100% remote. With some personal meetings from time to time.