Job Description

At Stream we are looking for a full-time Backend Software Developer to join our Amsterdam team.

Stream is an API platform that powers feeds and chat for over 500 million end-users, who access Stream via a blazing fast, highly-available and simple to use API service.

Responsibilities include working on Stream’s core API technology, design and build high-performance software. You will have the opportunity to add new features to the service and find ways to make the existing ones perform better and faster.

Challenges

• Distributed databases, we built our own data store for feeds and for chat
• Real-time messaging
• High performance, our API responses are in the 10ms range
• High scalability, we use sharding, master-master, and master-slave to ensure scalability
• High availability, our entire infrastructure is designed and operated to survive entire datacenter crashes
• Multi-region, we deploy our service on 4 different continents

Our tech stack

Don’t worry if you don’t master them all or if you don’t see your favorite tool or language, you’ll have the chance to be exposed to most and to convince us to expand the list:

• Go, gRPC, RocksDB, Python
• Postgresql, RabbitMQ
• AWS, Puppet, CloudFormation
• Grafana, Graphite, ELK, Jaeger
• Redis, Memcached

About Stream

Stream has a casual social culture and offers a competitive salary and great benefits. When it comes to software engineering, ownership and quality are key: our goal is to deliver stable software that concentrates on solving the right problems. Our talented team is diverse, highly technical and collaborative, which makes Stream the perfect place to learn and to improve your skills.

Perks & Benefits

• Competitive salary and equity
• Awesome office in the heart of Amsterdam with its own cafe and rooftop terrace
• Healthy team lunches
• Chance to meet our team in Boulder
• Be surrounded daily by a team of exceptional engineers
• Opportunity and support to attend and/or present to industry-related conferences and meet-ups

Interview Process

1. First contact: We’ll tell you more about the company, what we do, and why we think Stream is a great place to work. This also is a good opportunity for you to ask us anything you want to know about the company and the position.

2. Tech interview: We’ll put you in the same room with our CTO and another team member for in-depth technical conversations. We are going to challenge your practical abilities in areas like problem-solving, web applications, database design and software design in general.

3. In-person interviews: If it looks like a good fit from both sides, we’ll bring you in to meet the rest of the team.

4. The offer: We’re only a signature away from your first day at Stream!

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Job Description

Will you join us on a journey to disrupt the trillion dollar travel industry? We are looking for the best and brightest who share our passion for travellers, data, and product.

FindHotel believes travel is the one thing that really opens minds to new ideas, cultures, and ways of thinking. Our mission is to get every traveller in the world the best accommodation deal. From adventure travel and backpacking to honeymoons and family vacations, we deeply care so that every traveller can make the best informed accommodation choice at the absolute best conditions for every trip.

We are growing fast and looking for a Senior Backend Engineer to join us in becoming a global travel category leader.

We build highly performant, scalable services and components that power our product and provide our users with the best content and deals the accommodation industry has to offer. Scalability, reliability, and great performances are the core of what we build. We work with modern stacks (Go, Elixir, Node.js, Python) and, as we embrace the DevOps culture, our infrastructure-as-code in the cloud (AWS) is managed via tools like Docker, Jenkins, and Terraform.

Should you join us, not only you will get exposed to some bright engineers with a passion for delivering great software, you will also get the chance to collaborate with team members from a broader range of disciplines, including data analysts and scientists, product owners, UX experts, and marketing specialists.

What you will actually be doing / responsibilities

Work in a team to solve challenging problems, integrating accommodation providers and building blazing-fast services that serve their data Identify bottlenecks and opportunities for improvements in terms of performance and code quality Help improving our infrastructure and scale it to support our continuous growth in a cost-effective way Support the growth of junior and intermediate engineers by coaching them in their daily tasks, as well as raising the bar of how things are done within both your team and the bigger engineering group What a day in the office might look like

In the morning, you and your fellow engineers sit down with the Product Owner to discuss the performance of a not-so-fast API endpoint. Comparing the ideal performance to the data collected by our monitoring systems, you brainstorm together a few ideas of how to improve the service’s performance and design a scalable solution. After lunch, you jump onto an open issue and prepare a pull request that improves the infrastructure’s reliability for one of the most delicate components. Before the end of the day, you put together some ideas on how to improve another component’s design and organize an architecture review session with some engineers across teams to discuss the benefits and costs of your proposed solution.

Requirements Who we are looking for / requirements

You have at least 6 years experience in back-end development using a modern set up and tooling You have a great understanding of APIs, databases, data structures, queues, and all things back-end, with a strong passion for automation You have worked on a production system that was exposed to significant scale (whether traffic or amount of data) and you are excited by these kinds of challenges You have a sense of pragmatism, constantly finding the right balance between achieving technical excellence and delivering value to the end users You are flexible, curious, and data-guided in helping us decide what to work on next You engage with your team and all the engineering group actively, sharing knowledge and best practices in order to improve with them every day You have production experience working with AWS and you have taken care of CI / deployments / infrastructure in the past Production experience with Golang is a big plus Experience with Terraform is a nice to have

Perks & Benefits

Why join FindHotel?

Lots of chances to learn and grow – you’ll be surrounded by some of the brightest minds in the city, be part of a culture which values sharing knowledge every day and have a budget to attend conferences and develop yourself. A profitable company with fast growth and a great scale opportunity. A competitive compensation package + perks and benefits. (including Stock Appreciation Rights) Flexible time off (take as many holidays as you need) and chance to work remotely - we measure results, not time spent in the office. You will be part of a highly international team in a fun work environment. We value good food, and offer catered lunches from various cuisines.

Interview Process

You can read about our hiring process here: https://blog.findhotel.net/2019/05/the-hiring-process-at-findhotel/

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Job Description

The Role

As one of the fastest growing Online companies in Europe, we offer a unique opportunity for you:

Our team collaborates on solving some complex development tasks that result from our continually increasing numbers of sellers and buyers (15 million monthly visitors and rising!). We’ve already implemented localisations for various European countries and will be expanding even further, outside of Europe, in the near future. And that is why we need your help!

We want to expand our team by introducing even more expert knowledge. You will work on challenges around scale, microservice architecture and implementing new features in Product focused innovation teams in which Front-End developers, Back-End developers, a Designer, a Data Scientist, and a Product Owner all work closely together. We are driven by A/B-testing and automated testing, which allows us to do multiple releases per day on our high-traffic website.

You will work with Ruby on Rails, nginx, MySql, Redis, ElasticSearch, Javascript, React, and Git in an agile development team of 60+ developers (and growing). We have headquarters in both Assen and Amsterdam in The Netherlands.

Your Experience

• If you know Ruby, then great! If not, that’s no problem as long as you’re happy to learn it.
• Aside from this, we value people with excellent communication and collaboration skills
• A curious mindset.
• Solid understanding of software engineering principles, including some of the following: Data Structures, Microservices, API development, Databases, System design, A/B testing and data-driven feature development.

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Job Description

Please note: if you’re a recruiter or a development company, don’t waste your time contacting us. We are not interested for sure.

At Careibu we are aiming to build the best social care community by students in the world. We are looking for capable, creative developers who want to help us accomplish that goal.

About Careibu Careibu is all about social care. Through our platform, we connect students to people for help at home. Our students work as babysitters, home cleaners and elderly assistants. Careibu’s Dutch community consists of 32.000+ students and 13.000+ clients. In Juni 2018, we officially launched in the German market (Berlin). Our mission is to bring all generations in society together and provide students a social side job.

Careibu was founded in student accommodation by two sisters, Lotte and Anne. They have grown the business from their student rooms to a team of 13 people which continues to rapidly grow. Our head office is located in Amsterdam.

Things we are working on We’re still a small company with an even smaller development team (CTO, product owner, backend developer and 2 mobile developers). This means you will need to wear many hats in the beginning but it also means there are many interesting challenges ahead that you can specialise in if you like. Broadly we are: – Migrating from legacy platform which has some interesting challenges – Improving and expanding our iOS & Android applications

Our technology stack We still maintain a stack built in Angular 1 (web UI), PHP (backend) and MySQL (data), however we are incrementally migrating to a new technology stack based on a Golang backend with native mobile apps (Swift for iOS and Java for Android).

Since we develop, test, deploy and operate our systems, we do work with other technologies that automate such processes, like GitLab, GitLab-CI, Docker and AWS’s ECS & RDS.

You should apply if – You want to be involved in building a product that has a social impact – You’ve worked in GoLang or you are a senior backend dev willing and able to learn quickly – You don’t mind exploring our legacy PHP system & rebuilding functionality on our new platform – You like to also be involved in improving the devops aspects of our stack – Experience with any of AWS EC2 & ECS, Docker or JavaScript/NodeJS is a big plus – You have a proactive attitude and are not afraid of failing – You (want to) live in the Netherlands (remote is not possible) – You have a EU passport (we don’t provide visa’s)

You want to apply or you have any questions? Email Anne (anne[at]careibu.com).

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