We're looking for someone who has:
- At least 5 years of software engineering experience with open source contributions.
- Experience developing, releasing, and maintaining production software.
- Significant experience writing Golang or the ability and desire to become proficient in new languages.
- A strong grasp of computer science fundamentals.
- Deep understanding of the theory and implementation of database trees on real file systems.
- Experience working in an agile development environment.
- The ability to take ownership and see initiatives through.
- Worked with and mentored junior engineers.
- Exceptional communication skills.
- Experience working with distributed teams.
What your primary responsibilities will be:
- Improve the IAVL codebase by committing DRY, well tested code.
- Work with the Cosmos-SDK team to keep the IAVL tree and its proofs well integrated.
- Optimize our implementation of the IAVL tree and its proofs.
- Research, design, and implement improvements to the IAVL tree, the proofs, and related protocols.
- Help formalize the specification of the IAVL tree and proofs and ensure the implementation adheres to the spec.
- Develop simulations for testing the behaviour of the IAVL tree under various loads and read/write strategies.
- Develop alternatives to the IAVL tree like the Ethereum Patricia Trie that adhere to the same interfaces.
- Mentor junior engineers and support the growth and health of the team.
- Review pull requests and provide valuable feedback to members of the team and open source contributors.
What we offer:
- The opportunity to build the future of the internet.
- An exciting role building open source software.
- Flexible work schedule.
- At least 4 weeks of paid vacation.
- Very competitive salary, including equity.
About our application process:
Qualified candidates can expect to go through a 4 step interview process. The first interview will be a call to assess cultural fit and to make sure our goals are aligned.
If we think there is a good fit, you'll have a call with one of our project managers to learn more about your skills and attitudes toward teamwork. If it's clear that you'd be a good addition to the team, we’ll ask you to complete a technical task for which you will be compensated.
If your technical task displays a high level of quality and care we will set up a final interview with our CEO or CTO.
Senior Site Reliability Engineer Tendermint San Francisco, United States / Berlin, Germany / Toronto $100,000 to $150,000 a year
October 2018
4 Applicants This Week
More Than 6 Months Old
This job posting is no longer available
Job Description
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.
Backend Engineer, Search SoundCloud Berlin, Germany €58,000 to €110,000 a year
August 2018
21 Applicants This Week
More Than 6 Months Old
Job Description
What's next in music happens on SoundCloud first. As the worlds largest open audio platform, SoundCloud is powered by a connected community of creators, listeners and curators who share, discover and influence whats new, now and next in music and audio. We enrich people's lives through the shared love of sound and we are looking for a backend engineer to join our Search Team in Berlin.
As backend engineers at SoundCloud, we build the infrastructure for products that music listeners and creators love. Our work often involves large-scale distributed systems, parallel computing, and data science. We actively improve our tools and processes to support collaboration and productivity. We cultivate an environment where we can all learn and grow. For more,read about engineering at SoundCloud.
You have solid backend engineering skills and are motivated to work in these areas. You have experience with operations in a large production environment. You're proactive and have experience collaborating closely with other teams. You enjoy crafting simple solutions to complex engineering problems and are able to communicate them. You're an independent thinker, but thrive in a tight-knit team. You're committed to the products you work on.
If this describes you, we'd love to chat.
Prior experience with microservices, building infrastructure automation and continuous delivery are all highly valued. Go is the main language we use, so you are either already proficient in it or excited to learn. Experience in technologies such as Elasticsearch, Spark, Kafka, and data processing pipelines is a plus.
Diversity at SoundCloud:
SoundCloud is for everyone. Diversity and open expression are fundamental to our organization; they help us build a social platform and global community where anyone can create, discover, and share sounds. We acknowledge the challenges in our industry, and strive to develop an inclusive culture where everyone can contribute.
DevOps Engineer ChartMogul Remote (Europe) / Berlin, Germany €40,000 to €60,000 a year
September 2021
1 Applicants This Week
More Than 6 Months Old
This job posting is no longer available
Job Description
ChartMogul Engineering is well on its journey to fully embrace a DevOps-driven culture!
Our DevOps team builds the infrastructure, processes, and tools necessary to release, monitor, and manage our applications with high velocity and efficiency in a modern cloud-native environment. We value automation, self-service, and empowerment of product engineering to manage our codebase from development to production.
By joining our team, you will play a significant role in supporting our growing architecture, working with edge cloud technologies, and implementing innovative solutions for our products. As with many young companies, your responsibilities may evolve. Here are some of the things we expect you to take on as a DevOps Engineer:
End-to-end ownership of everything related to the infrastructure that keeps ChartMogul alive and running, including running daily operations of our infrastructure on AWS
Collaborate with the product engineering teams and the various service support teams in engineering (QA, AppSec, Data Engineering) in service of maintaining, building, and improving our underlying systems so that they are highly available, scalable and performant
Actively contribute to improving our systems and evolve our infrastructure: flawless CI/CD pipelines, Kubernetes deployments, containers monitoring, automation with infrastructure as code, GitOps, reliability on AWS cloud
Join our constant efforts to meet and overcome standards for information security and compliance; ensuring our customer data is as safe as possible is our top priority
Proactively identify and validate areas of improvement as necessary by using the best tool available for a given case and constantly researching and evaluating industry trends that fit ChartMogul's needs
Our Tech Stack
We run a combination of Kubernetes clusters and a fleet of Linux machines for our Rails stack, along with multiple microservices backed up by PostgreSQL databases and a Redis datastore. Our legacy infrastructure is running on AWS EKS (Kubernetes and containers).
2 years of professional experience as a DevOps / SRE / Systems Engineer
Hands-on experience with high traffic production infrastructure
Strong knowledge of Linux and computer networking
Experience with AWS cloud and services
Experience with configuration management systems
Experience with managing and monitoring databases
Next to speaking English fluently, you can understand and translate business requirements into clearly articulated technology solutions
Nice to have
Understanding the cloud ecosystem in modern software development: Infrastructure as Code, Immutable infrastructure, git, CI/CD pipelines, containers, serverless, monitoring
Experience with Docker and Kubernetes
Experience with PostgreSQL databases and RDS
Hands-on production experience with CloudFormation or Terraform on AWS cloud
Behaviourally
Clear and precise communications, especially when working under the pressure of a production failure and/or incident affecting our users
You're passionate about the DevOps culture and keep up with news and technologies in the cloud, networking, Linux, and open-source area
You're eager to learn, contribute to design and architecture decisions, and inspire change
You value automation; you are eager to spend a bit more time automating things that require more than one manual trigger
What is it like to work at ChartMogul?
You’ll join the adventures of an early-stage company and experience what it means to have an incredibly impactful job
You’ll become part of a team of nice, awesome, and highly dedicated people who all have the same mission: Helping companies build better businesses
Flexible hours with healthy work-life balance
All employees, including contractors, receive sick days, paid holiday days, and paternity leave
You’ll receive a great salary pack (market or upmarket)!
Application Process
Application is reviewed
Introductory + technical call with our DevOps Engineer
Final interview with our Head of Engineering
Reference checks
Offer
This is a full-time remote position. Please note that we are only able to consider applicants who are eligible to work in the EU at this time.
We believe that great, agile software engineering requires creativity in solving problems for our users, a scalable architecture, great coding as well as open minded communication.
At OneFootball we are delivering the product experience for football fans, the platform for our content partners and tools for our internal users. Our main systems consist of a micro service architecture with golang applications running on Kubernetes in AWS, serving iOS, Android and Web clients.
The Consumer Web Team is a cross-functional team of 8 passionate individuals is based in Berlin, Germany. We are looking for a Backend Engineer who understands how to organise multiple systems, is skilled in Golang and passionate about working products. Join us and be involved in the production process, from idea to user.
As Backend Engineer, you will focus on expanding the reach of OneFootball on the web.
Join the team and help us improve the user experience through direct impact on creating, shaping and delivering features of our main website.
Your role
Build the backend API powering onefootball.com
Work on the performance in terms of retention and acquisition, scale & roll out new features in close cooperation with other engineers & stakeholders
Have an impact on systems and features used by millions of users
Be in contact with technologies from different areas
Your profile
You have been developing backend services with Go in a professional setting for at least 4 years already
You care about software quality and are familiar with agile methodologies
You have worked with Docker and Kubernetes
You are familiar with SQL and Redis
You have experience in writing REST Services
You have a positive attitude and can communicate complex ideas in English with ease
If we have captured your interest and you want to help us build the ultimate media platform for football fans, apply now and join our engineering team!
OneFootball strives for a healthy and safe workplace and is committed to building diverse teams.
Backend Engineer OneFootball GmbH Berlin, Germany €55,000 to €70,000 a year
January 2021
1 Applicants This Week
More Than 6 Months Old
This job posting is no longer available
Job Description
We believe that great, agile software engineering requires creativity in solving problems for our users, a scalable architecture, great coding as well as open minded communication.
At OneFootball we are delivering the product experience for football fans, the platform for our content partners and tools for our internal users. Our main systems consist of a micro service architecture with golang applications running on Kubernetes in AWS, serving iOS, Android and Web clients. You can check our Stackshare page, too.
We're looking for an outstanding Backend Engineer (Golang) to help tell the world's football stories.
Your role
Write Golang code that your co-workers appreciate for its readability and elegance,
Work on a growing set of backend services that bring the latest news stories and match highlights for hundreds of competitions to our users in no time by closely cooperating with our Product team,
Drive from Conceptualization to Deployment complex services that integrate our partners' content into OneFootball applications,
Be responsible for delivering features and APIs on the backend service side in close cooperation with our “client” teams,
Be very data-driven in designing new features by extensively relying on usage patterns, bucket-testing, A-B Testing, and a very deep understanding of the domain and customer objectives,
Understand the full tech stack and be able to debug and drive right design decisions.
Your profile
Experience in developing and maintaining fast, scalable and well-documented APIs,
Experience with MySQL, PostgreSQL, Redis and NoSQL databases as well as an ability to optimise storage effectively,
Solid understanding of what scalability, caching and load testing mean,
Experience in event sourcing systems and handling concurrency at scale,
Experience in Docker, Kubernetes and agile methodologies are pluses.
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.
Backend Engineer OneFootball GmbH Berlin, Germany €60,000 to €80,000 a year
September 2020
3 Applicants This Week
More Than 6 Months Old
This job posting is no longer available
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.
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 12 countries, operating from offices in Berlin, New York City, Sydney, Toronto, London, Amsterdam and Copenhagen and shipped out more than 250 Million meals in 2019.
Our more than 5,000 employees are the heart and soul of our highly international, fast-paced, and dynamic environment where innovation and smart, fast action is encouraged.
We want you to join us and help take HelloFresh to the next level - as a company in its growth phase this is a great time to join. Career and development opportunities are endless.
We will encourage you to make an immediate impact in your area of work as well as empower you to grow your career with us.
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
Our Backend Engineers assume development and operational responsibility for the HelloFresh platform that serves millions globally to deliver the best experience for our customers and internal users
They take ownership of the architecture, design, development, deployment and operations of the microservices they develop, using DevOps practices, pair programming and other cutting edge methodologies
They are active, solution-oriented members of autonomous, cross-functional agile teams collaborating with Product Owners, Front-end Engineers, Designers, and Business Intelligence teams
They participate in bi-weekly Chapter Days to take part in exploratory initiatives and to share knowledge and trends with the engineering department
They have an in-depth understanding of HelloFresh’s core product and architecture, and act as ambassador for software solutions offering support and mentorship to colleagues
They are comfortable with state-of-the-art technologies like Kafka, RabbitMQ, Spark, Kubernetes, Istio, and more
Who we are looking for
You have solid back-end experience within Microservice architecture using Golang, PHP and/or Python
You have experience working with Docker and container orchestration technologies such as Kubernetes
You are experienced in CI/CD methods and practices
You have practical experience of TDD, BDD, DDD and distributed architectural patterns
You have a background working with event-driven architectures using RabbitMQ and/or Kafka
You are experienced in end-to-end development processes, including unit, integration & functional testing, distributed architecture, application tuning/profiling, and continuous integration
You have experience working with relational and document databases, including PostgreSQL, MySQL, MongoDB
You thrive in the opportunity to collaborate and mentor team members, while also sharing practical knowledge and trends
Interacting with front-end developers, 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 platforms and environments, while also acting as an ambassador to coach team members and stakeholders.
What we offer
Relocation assistance to move to Berlin and visa application support
Competitive compensation
Significant reduction on our meal kits
Annual learning and development budget to attend conferences or purchase educational resources
Sabbatical policy
Work in our office located in the heart of Berlin
A diverse and vibrant international environment
A range of perks (Free in-house crash course in German, compensation for advanced German classes, in-house lecture series and knowledge sharing programme, discounts for our neighboring gym & Urban Sports Club, free weekly yoga classes, summer & winter parties, discount on our HelloFresh GO vending machines)
The chance to have a significant impact on one of the fastest-growing technology companies in Europe in an exciting growth phase
Are you up for a challenge?
Please submit your complete application below including your salary expectations and earliest starting date.
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.
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 (m/f/*)
At Barzahlen 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 order to further develop our systems and to implement new projects we are looking for software engineers. It is important for us that the following applies to you:
You love coding! Software development is not just a job for you. You are coding on private projects as well and you are interested in the latest developments in the industry. 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’ve already worked with these two languages in the past but in case you haven't, that’s 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, over to our internal services and the PostgreSQL database. It’s your aspiration to ensure an error free operation of all our production systems through a mixture of code reviews, unit + integration tests and monitoring.
High requirements merit appropriate compensation. We are competing with other companies for your time and knowledge. So why should you decide to join us? Naturally this is quite hard to answer and depends on a lot of factors. Therefore we would be happy to answer all your questions regarding Barzahlen in a personal chat.
You can expect the following working for us:
Our office is located in the middle of Berlin and easily accessible using public transport. 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 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-Startup" from the ground up and to establish it in the market.
After creating a solid base of operations in Germany over the last 4 years we plan to realize several large projects in the coming months which build upon our existing payment infrastructure.
We will be happy to tell you more about this in a personal chat :)