As a part of Amadeus, travel audience unit is the world’s leading data-driven travel advertising platform. travel audience harnesses the power of home-grown tech, combined with cutting-edge machine learning practices to connect the leading performance-oriented travel brands with the biggest network of publishers, reaching Billions of travellers globally.
Our aim is to optimize advertising across the entire traveller journey, identify and create new audiences, and increase our partners reach, relevance and booking volumes.
We are searching for a (Senior) Backend Engineer to join our team. You will be combining your passion for technology and have a direct impact on the lives of millions of travellers, while also helping travel audience in becoming the global leader in data-driven advertising for the entire travel industry.
**
What you'll do:**
You'll be part of the team responsible for design, development, maintenance and operation of the programmatic advertisement and ad delivery components of our system: a set of Go applications, some of them, soft real-time;
You'll design & implement new features, write unit and integration tests, tune monitoring and alerting;
You'll work closely with Data Scientists in experimentation and optimisation of the business logic, leveraging machine learning and mathematical models;
You'll actively contribute to improving quality & managing technical debt;
You'll have the opportunity to participate in managing the infrastructure, capacity planning & optimising costs;
You'll participate in architecture and design discussions, actively influencing the evolution of the architecture to meet new business requirements;
You'll always be on a quest to look for better tools and solutions that match the new requirements better.
Why join us?
As part of our team, you will work in a highly motivated environment, with equal opportunities, flat hierarchies and short decision-making processes. You’ll have a lot of freedom to contribute your own ideas and implement them. We offer you:
The opportunity to drive business growth and truly having an impact on the business;
The opportunity of taking an impactful role in a fast-paced industry where you handle new problems every day;
The opportunity to work on a system that already handles many thousands of requests per second (per instance) and processes terabytes of data per day - and you will have the opportunity to help to push it further;
The chance to experience working on a soft real-time system - designed to reliably respond in tens of milliseconds.
Requirements
About you:
You have gained significant experience with software development, writing idiomatic Go code, and are familiar with the tooling of the Go programming language;
You worked with at least 5 of these technologies: Kubernetes, Helm, Terraform, Google Cloud Platform or other cloud computing environments,Prometheus, Grafana, protobuf, gRPC, Kafka, Aerospike or other key-value or document databases, PostgreSQL or other SQL databases, microservice architecture;
Work experience in production environments with high-traffic and/or high uptimes (HA, 24/7), or strong proficiency with performance optimization it's a plus;
It's a big advantage if you are experienced with programmatic advertisement (eg. Google RTB or OpenRTB) or real-time/soft real-time environments;
You are a quick learner, you believe in continuous improvement and you are good at analytical problem solving;
You can communicate well and are a first-class team player;
You can speak, write and express yourself in English – our company’s working language – in a professional context.
We are awaiting your application and looking forward to starting our journey together!
Join our Core Services team as Senior DevOps Engineer!
What you will do:
Drive the company-wide adoption of the cloud platform products and work closely on its implementation with the delivery teams;
Provide guidance on performance optimisation, help with the analysis and engage as the subject matter expert;
Participate in the analysis of new requirements and develop solutions and services to support the development teams.
Help to shape and execute the technical roadmap and strategy for the next generation of application features and cloud infrastructure in Google Cloud.
Develop systems automation and provisioning frameworks for multiple applications and environments.
Mentor, support and coach regarding tools, concepts and best practices.
Why join us?
As part of our team, you will work in a highly motivated environment, with equal opportunities, flat hierarchies and short decision-making processes. You’ll have a lot of freedom to contribute your own ideas and implement them.
The opportunity to drive business growth and truly having an impact on the business;
A fast-paced industry where you handle new problems every day;
An environment where you are encouraged to research, explore and try new ways of doing things;
An open and dynamic culture that supports great work-life balance, while being part of Amadeus, the biggest travel tech company in the world.
Requirements
You are whom we are looking for if:
You are familiar with distributed systems, their complexity and benefits, and also the trade-offs involved;
You like to code and automate as much as possible in an environment with Terraform, Kubernetes, Helm Charts and Golang applications;
You understand different database technologies and messaging queue patterns and you know your way around BigQuery, Postgres, Redis, Aerospike, Kafka, Google pub/sub;
You like to monitor everything and Prometheus and Grafana are your best palls. If you have used them in Federated setups, please let us know;
You have worked in a production Kubernetes environment and you understand the concepts around overlay networks and Kubernetes Operators. Multi-region setup is our next big challenge!
You are in the frontline of technology innovation and you love to transfer your knowledge, experience and best practices to other Engineers;
You have experience or interest in working with Google data solutions like Dataflow, Airflow or Apache Beam.
We are awaiting your application and looking forward to starting our journey together!
Senior Software Engineer Remerge Berlin, Germany €60,000 to €90,000 a year
May 2021
1 Applicants This Week
More Than 6 Months Old
This job posting is no longer available
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!
We are looking for a Golang developer who helps us develop an MVP for a nice Infrastructure as Code project. The MVP consists of a command-line application and a REST API for managing AWS cloud infrastructure in Golang. The project is running only for a few weeks, so you'll have the opportunity to contribute a cool project right from the start!
tl;dr
Develop a Golang command-line application and a REST API
Strong focus on internal and external software quality
Ambitious project context in the AWS cloud (Infrastructure as Code, High Availability, a high degree of automation)
For 10 to 16 hours per week
We speak English and German
AWS cloud / Infrastructure as Code / Part-time / Freelance
Project Background
We are developing the prototype of an innovative product for managing cloud infrastructure. It is all about running web applications in the AWS cloud in an easy-to-use, reliable, and automated way. Our users should be able to create and maintain the resources that they need without any external help. Behind the curtains, there is a framework that manages those resources in the AWS cloud with Terraform. This concept aligns with the Infrastructure-as-Code principle, which aims at providing documented and managed-like-source-code infrastructure definitions. We set a strong focus on economic factors, in that it should be viable to run both small and large applications and to scale those applications with high load and amount of users. The platform should be highly available and self-repairing – nobody should be on-call and responsible for fixing server deployments in the middle of the night. We have already validated a solution for creating and managing such an infrastructure, and we are in the process of bringing it to life.
The Task at Hand
The platform's user interface is a command-line application which talks to the REST API, which we also develop. We want to implement these tools in Golang, and engineering has just started. We have a strong focus on software quality: in the end, we want to have a well-designed, robust software architecture with clear responsibilities and interfaces. The product should be automatically testable and maintainable for an extended period. An important factor will be integrating several data sources to deliver the right information to the user at the right time. The challenge lies in the heterogeneity and complexity of the data sources (for example, Terraform and AWS). It is also important to us that the product is intuitively usable: it should transform hosting infrastructure from a bothersome task to something fun. To achieve this, we want to gather user feedback and act on it iteratively.
Your Qualifications
You should have considerable experience with Golang and see yourself on an intermediate-to-senior level. In particular, you should engage with topics such as software architecture, testing on unit/integration/end-to-end level, and picking the right frameworks and libraries. You are also excited about clear software architecture and clean, well-maintainable code. We really care about this! ;) If you've got experience with infrastructure tools such as Terraform, Docker, Kubernetes, or cloud platforms such as AWS or Azure – that's a plus, but we don't expect you to know everything. And you won't have to dive deep into all those topics (depending on your personal preferences, of course). There are more bonus points if you know how to integrate 3rd party CLI apps in a stable and reliable way.
The Scenario
You're living in Berlin, Potsdam, or somewhere nearby, and you have one to two days per week to spare. The project is sponsored by a company for digital products in Münster (Zweitag). However, there is no need to travel there because you work together with a team member who lives in Berlin. The current project is projected to take six months. If it all works out fine, we can see you being invited to work with us for longer. 🙂
#bestthingever
Want to hear more about this project over a nice cup of coffee? Write an email to Felix at felix.seidel@zweitag.de. 🚀
Back End Developer (m/f) Quoori Hamburg, Germany €55,000 to €70,000 a year
April 2019
2 Applicants This Week
More Than 6 Months Old
Job Description
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
Deliver innovative, engaging cloud products on mobile devices and mobile web apps
Lead the way on project architecture and database structure while utilizing best practices in performance, stability, scalability, and security
Work closely with front-end developers across the organization to continuously improve our ability to deliver awesome mobile experiences quickly
Contribute to concept development with multi-disciplinary teams of developers, creatives, and producers
Analyze and evolve components to scale and address new requirements
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.
Senior Software Engineer OLX Group Berlin, Germany €65,000 to €90,000 a year
October 2018
3 Applicants This Week
More Than 6 Months Old
This job posting is no longer available
Job Description
We are looking for Senior Software Engineer to join our office in Berlin. We’re a team of 5,000 ambitious, curious people building marketplace platforms that make it super easy for anyone to buy and sell almost anything, boosting local economies.
What you will be doing:
• Working in a small, cross-functional team of about 5-7 people (product, data engineering, front-end, back-end, DevOps)
• Have impact on the direction of the product, not just the technology side (a sense of ownership is not only allowed, but expected)
• You’ll be writing maintainable, testable and performant code in a Continuous Integration Environment
• Research, suggest and implement new solutions to our problem domain
• Thinking about and acting on data management solutions
• How to improve the architecture and split the different domains into microservices
Who we’re looking for:
• Has senior-level experience with any state of the art back-end technology. Current tech stack includes Go, Python, Node and JVM — if you’re the candidate for us, you will pick up these technologies quickly, or convince us we should be using something else.
• Worked in Agile environment (Kanban, Scrum or XP)
• Knows PHP on at least average level
• Was exposed to TDD or BDD
• Takes ownership and can work independently
• Who worked in high-traffic, high-volume, cloud applications
• Sees the differences between SQL and noSQL databases
What we’ll give you:
• Contributing to the global OLX Group
• International career and travel opportunities
• Work with an international team of top engineers learning from one another
• A budget for conference and education
• Competitive salary and great benefits
• Home Office possibilities
• Company Mobile phone
• Any tool you might need MacBook Pro, Notebook, PC (selection of Dells and Thinkpad machine)
• Free coffee, snacks, and drinks
• Great office location around the corner from Berlin Hauptbahnhof
What you need to know about us:
• OLX is the world’s leading classifieds platform in high-growth markets. It’s available in more than 35 countries and in over 50 languages. The platform makes it so easy to connect people to buy, sell or exchange used goods and services.
• OLX is part of the OLX Group, a global product and tech company with 17 brands, +40 countries, +5000 people and one mindset.
• Our mission is to make it super easy for people to buy and sell almost anything, boosting local economy
• We are proud to be different, and we work differently too. We combine the spirit and agility of a start-up with the maturity that comes from being part of a 100 year-old company.
• We are curious, ambitious and allergic to corporate interference. We improvise, experiment and push each other further, embracing uncertainty and driving change.
If you’d like to learn more about the OLX Group take a look at the other parts of our website or reach out to Sebastian. And remember, we are an equal opportunities employer.
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!