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Our true purpose at Castor
Castor is one of the leading platforms for data collection in medical research. We believe standardizing and reusing datasets is key to overcoming the healthcare challenges of the future.
How we operate
Our main Electronic Data Capture (EDC) application runs on a proven stack consisting of Ubuntu, Nginx, PHP and MySQL. For our cloud installations, we orchestrate these setups by using Terraform combined with Ansible for the server configuration management.
Due to the nature of processing medical data, we have clients in different regions across the globe, often with specific regulatory constraints around where and how their research data is stored. To meet these customer demands we combine both traditional as well as cloud-based hosting solutions.
Most of our clients prefer to run in Azure, but we’re using Google Cloud Platform for things like Kubernetes hosting of greenfield projects, blob storage for scalable file upload storage and their Key Management System (KMS) to further secure our data.
For our metrics we’ve begun standardizing on Prometheus and we’re moving towards Loki for log aggregation. We use PagerDuty for alerting, communicate via Slack and host our code on Github.
Why we’re growing our team
With our recent expansion have come new challenges, both in how we organize ourselves and in how we manage and scale our infrastructure in the future.
To further these efforts we have formed a Platform team consisting of SRE and Software Engineering, which we are now looking to grow with the addition of an additional SRE.
Additionally, due to the sensitive nature of medical data, Castor is certified for both ISO/IEC 9001 (quality) and 27001 (Information security). In addition, we have to adhere to a number of other regulations, including Good Clinical Practice (GCP) guidelines.
Our goal is to unite these requirements with emerging SRE practices around infrastructure as code and other principles to create a well designed and documented system, while still allowing us to remain flexible to change.
How you will contribute
Our absolute commitment to patient data security and privacy informs our vendor selection with certified datacenter and cloud providers. To achieve real impact in medical research, Castor needs to operate security around the world.
Historically, our production platform has run on top of managed hosting services. This model doesn’t scale well for our global, international footprint, which is why we are currently expanding our in-house knowledge and transitioning to Infrastructure-as-a-Service providers.
As a Site Reliability Engineer, you’ll have the ability to shape our operations and continuously deliver a working product. Working very closely with the development teams, you’ll collaborate in supporting and structuring our efforts around automation, observability and security. With your help we plan to scale the Castor platform to the next level.
Some things we worked on recently
Whilst there are many operational challenges as we continue to grow and scale at Castor, our Platform team has made great improvements to a variety of our systems already. To give you some examples of what we achieved last month:
Your background
You have helped run web-facing services under production workloads and have experienced the challenges that come with maintaining and scaling these systems. Making and owning decisions about systems architecture together with your team is something you enjoy and feel comfortable with.
Qualities we’re looking for include:
How we say thank you
At Castor we truly live our core values, believing we can achieve anything with a healthy and happy team. With this in mind, we offer the following benefits:
This job posting is no longer available
Location: Remote or Amsterdam, NL(Visa sponsorship available)
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 looking for an enthusiastic and motivated Back-End Engineer to help build the most scalable and flexible APIs in the industry. You will be joining FindHotel’s Marketplace Platform Tribe. You will be working with other squads across tribes and closely interact and actively collaborate with the Software Engineers, Data Analysts, Data Scientist, and PO in the team.
We are working with a modern stack consisting of Go, Redis, AWS (ElastiCache, ECS, S3, Batch), Snowflake, and more. We process thousands of requests per second and integrate with many suppliers and other partners. The products developed by the Offers team are a core part of FindHotel’s platform allowing us to offer the best possible comparison and offers to every traveller, worldwide. Hence, anything that you will develop and ship on production will have an immediate effect on our users and on our business performance. We work in a flexible, results-oriented and customer-centric team structure, focussed on shipping value in a collaborative fashion, with hopefully just the right amount of bureaucracy.
Work in a team to solve challenging problems, and design and develop products that will help to bring to our travellers the best deals available in the market. Identify bottlenecks and opportunities for improvements in terms of performance, reliability, and code quality. Integrate and improve (new) provider integrations. Help to maintain and improve our infrastructure and scale it to support our continuous growth in a cost-effective way.
In the morning, you and your fellow engineers have a refinement session with the PO to discuss the upcoming features on the roadmap. You carefully consider the impact of the new feature on the entire product and raise questions and make suggestions of what is the most pragmatic approach to balance the technical excellence with the time to market. You are part of a discussion that builds on top of each other suggestions, ideas and comments. Today you have chosen to come to the office and after lunch you play table tennis or pool or go for a walk with colleagues in the city centre. In the afternoon, you enter a deep work period and finish working on improving a core component in the rates and availability API. Once down with that work you jump on a zoom call with the rest of the team to discuss the challenges and next steps with the PoC the team is building in this sprint. Throughout the day you monitor the product operations using DataDog.
Is FindHotel is the right place for you? Find out by reading our CEO's blog post
This job posting is no longer available
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 opens minds to new ideas, cultures, and ways of thinking. Our mission is to GET EVERY TRAVELLER THE BEST ACCOMMODATION DEAL, WORLDWIDE. From adventure travel and backpacking to honeymoons and family vacations, we genuinely care so that every traveller can make the best-informed accommodation choice at the absolute best conditions for every trip.
We are looking for an enthusiastic and motivated Back-end Engineer to help build the best content and mapping product in the industry. You will be joining FindHotel’s Marketplace Platform Tribe, where you will be working with other squads across tribes and closely interact and actively collaborate with the software engineers, data analysts, data scientist, and PO in the team.
We are working with a modern stack consisting of Go, Python, AWS (ElastiCache, StepFunctions, EC2, S3), Snowflake, dedupe, and more. We process large amounts of content daily and integrate with many suppliers. Content and mapping products are an important part of FindHotel’s platform. They allow us to offer the best possible comparison and offers to every traveller, worldwide. Hence, anything that you will develop and ship to production will have immediate effect on our users and on our business performance. We work in a flexible, result-oriented and customer-centric team structure, focussed on shipping value in a collaborative fashion, with hopefully just the right amount of bureaucracy.
What you will actually be doing / responsibilities
What a day in the office might look like
In the morning, you and your fellow engineers have a refinement session with the PO to discuss the upcoming features on the roadmap. You carefully consider the impact of the new feature on the entire product and raise questions and make suggestions of what is the most pragmatic approach to balance the technical excellence with the time to market. You are part of a discussion that builds on top of each other suggestions, ideas and comments. Today you have chosen to come to the office and after lunch you play table tennis or pool or go for a walk with colleagues in the city centre. In the afternoon, you enter a deep work period and finish working on improving one of the provider’s mapping models. Once down with that work you jump on a zoom call with the rest of the team to discuss the challenges and next steps with the PoC the team is building in this sprint. Throughout the day you monitor the product operations using DataDog.
Who we are looking for / requirements
Why join now?
Is FindHotel the right place for you? Find out by reading our CEO's blog post
What we offer:
Blog posts worth reading
We are building the next generation Cloud platform for Bloomreach Experience. This is a platform aimed at developers to run websites and content management systems based on Bloomreach Experience. We are using the latest technologies like Go, Kubernetes and AWS to build a truly outstanding product. We want to differentiate by being smart; no error prone, tedious, manual work. Innovate, not only the product, but also our way of working. Focus on quality, so we can be proud of our product and deliver rapidly.
Responsibilities
You will code and operate our next generation platform, Bloomreach Cloud (BRC). BRC is written in Go on top of Kubernetes and AWS. Your days will be filled working with concepts such as: Kubernetes, Go, AWS, agile, scalability, real-time monitoring, open source, automation, gitops, CI/CD. You will be part of a small, dedicated and cross-functional team where you will have a large and diverse set of responsibilities to support Bloomreach, its customers and its partners.
Must haves
Nice to have
What we offer
By joining our team, you'll enjoy:
Benefits:
Only applications of people with a valid working permit for the Netherlands are taken into consideration
This job posting is no longer available
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 opens minds to new ideas, cultures, and ways of thinking. Our mission is to GET EVERY TRAVELLER THE BEST ACCOMMODATION DEAL, WORLDWIDE. From adventure travel and backpacking to honeymoons and family vacations, we genuinely care so that every traveller can make the best-informed accommodation choice at the absolute best conditions for every trip.
We are looking for an enthusiastic and motivated Senior Back-end Engineer to help build the best content and mapping product in the industry. You will be joining FindHotel’s Marketplace Platform Tribe, where you will be working with other squads across tribes and closely interact and actively collaborate with the software engineers, data analysts, data scientist, and PO in the team.
We are working with a modern stack consisting of Go, Python, AWS (ElastiCache, StepFunctions, EC2, S3), Snowflake, dedupe, and more. We process large amounts of content daily and integrate with many suppliers. Content and mapping products are an important part of FindHotel’s platform. They allow us to offer the best possible comparison and offers to every traveller, worldwide. Hence, anything that you will develop and ship to production will have immediate effect on our users and on our business performance. We work in a flexible, result-oriented and customer-centric team structure, focussed on shipping value in a collaborative fashion, with hopefully just the right amount of bureaucracy.
What you will actually be doing / responsibilities
What a day in the office might look like
In the morning, you and your fellow engineers have a refinement session with the PO to discuss the upcoming features on the roadmap. You carefully consider the impact of the new feature on the entire product and raise questions and make suggestions of what is the most pragmatic approach to balance the technical excellence with the time to market. You are part of a discussion that builds on top of each other suggestions, ideas and comments. Today you have chosen to come to the office and after lunch you play table tennis or pool or go for a walk with colleagues in the city centre. In the afternoon, you enter a deep work period and finish working on improving one of the provider’s mapping models. Once down with that work you jump on a zoom call with the rest of the team to discuss the challenges and next steps with the PoC the team is building in this sprint. Throughout the day you monitor the product operations using DataDog.
Who we are looking for / requirements
Why join now?
Is FindHotel the right place for you? Find out by reading our CEO's blog post
What we offer
Blog posts worth reading
This job posting is no longer available
Location: Amsterdam, Netherlands (relocation & visa) or remote (European time zones).
WHO WE ARE
After the 2008 financial crash, the international financial and business environment is more regulated than ever. The amount of required paperwork has increased exponentially. The deals are being blocked, the accounts are being frozen, the business is often getting paralyzed.
Project Plato was born in 2015 as an autonomous R&D unit working for Dolfin, an established British investment company, with the aim of automating sensitive business operations. We are a young and ambitious team frustrated by inefficiency of existing solutions.
5 years later, with the help of our software solutions, Dolfin was able to have
But this is only the beginning. Our mission is to help companies and business professionals around the world communicate with each other and do business with trust and simplified paperwork.
OUR TECH STACK
As a serious, business-oriented company, we develop our solutions exclusively in COBOL.
Just kidding! We use modern and diverse IT infrastructure. Our solutions are web-based, with backends in Golang andPython and frontends in Typescript and React. Data storages include PostgreSQL, DynamoDB and Amazon S3. The infrastructure consists of multiple backend services managed via Kubernetes/Helm, integrated with various AWS and third-party services. We also use Google Bazel, a secure and robust build system.
We strive to make our development process predictable, change-proof and well-organized to achieve the fastest possible product delivery pace without compromising reliability.
OUR TEAM
We are still small: Project Plato is less than 15 people in total but we are planning to grow to 20 soon. As part of the Project Plato back-end team, you will be working closely with Oleg and another 3 senior engineers. Oleg is our lead backend engineer who has been part of the team since 2015 when we established our office in Amsterdam. We are a group that values trust, growth, agility, mutual respect, taking ownership, and learning from each other through a culture of open feedback.
WHO ARE WE LOOKING FOR
WHAT ARE YOU GOING TO DO
WHAT’S IN IT FOR YOU
We are seeking a skilled Staff Software Developer to join our team. This role is open in our Amsterdam office (relocation is possible), or remotely (EU or UK-based).
You'll focus on one of the most used Products: Chat, as well as the brand new Video & Audio API.
A big portion of your day will be dedicated to software design, research, and coding.
On typical projects, you will have a lot of freedom and you will be paired with another team member.
Our team is made up of very experienced engineers, some with more than 10 years of experience.
By working together you will learn from each other along the way. Not only that, you will have an enormous impact!
Our customers have millions of users; they use Stream for mission-critical features such as showing content and exposing the core functionality of their application.
You have:
Bonus points:
Our tech stack
At Stream we use a wide collection of technologies to offer highly optimised and available features to our customers. Over the years we have experimented with different programming languages, frameworks, databases, and libraries.
Here is a short list of the technology that we currently use.
Do not worry if you do not master them all or if you do not see your favourite tool or language, you will have the chance to be exposed to most and to convince us to expand the list:
Stream employees enjoy some of the best benefits in the industry:
A team of exceptional engineers
The chance to work on OSS projects
28 days paid time off plus paid Dutch holidays
Company equity
A pension scheme
Remote work flexibility
A Learning and Development budget
Commute expenses to Amsterdam covered or the option to use a company bike within the city
Fitness stipend
Monthly in-office chair massages by a professional
MacBook Pro
Healthy team lunches and plenty of snacks
A generous relocation package
An office in the heart of Amsterdam
The opportunity to attend or present at global conferences and meetups
The possibility to visit our office in Boulder, CO
Parental leave paid at 100%
Note: this list of benefits applies to Netherlands-based employees and is adjusted per your location of residence.
Stream has a casual social culture, our team is diverse and we all have different backgrounds. Now, Stream is a team of over 130+ peers from over 35 countries across the globe.
We value transparency, aim for excellence, and support each other on our way to new victories.
Our team consists of the strongest talents worldwide, making Stream a great place to learn and improve your skills.
When it comes to software engineering, our culture is oriented towards ownership and quality: our goal is to deliver stable software.
If you are interested in becoming a part of what we do, apply now!
Stream provides equal employment opportunities to all employees and applicants for employment and prohibits discrimination and harassment of any type without regard to race, color, religion, age, sex, national origin, disability status, genetics, protected veteran status, sexual orientation, gender identity or expression, or any other characteristic protected by federal, state or local laws.
This policy applies to all terms and conditions of employment, including recruiting, hiring, placement, promotion, termination, layoff, recall, transfer, leaves of absence, compensation and training.
No recruiters/agencies please
We are looking for a full time Backend Software Engineer to join our development team. Job duties will include working on Stream's core API technology as well as designing and building high-performance software. This role in either our Amsterdam office or remote (CEST or close).
What you will be doing
Most of your day will be dedicated to software design, research, and coding. On typical projects, you will have a lot of freedom and you will be paired with another team member. Our team is made up of very experienced engineers, some with more than 10 years of experience. By working together you will learn from each other along the way. You will have an enormous impact on making our API service faster, more scalable and more flexible.
You will add new features to the service and find ways to make the existing ones perform orders of magnitude faster. Our customers have millions of users; they use Stream for mission critical features such as showing content and exposing core functionality of their application. Building stable and reliable software is not just an option: as a member of the development team, you will design and write state-of-the-art software, follow best practices, measure everything and be responsible for deployment to production. You will also spend part of your time talking to our customers and help them to use Stream in their app.
The challenges
You have
Our tech stack
At Stream we use a wide collection of technologies to offer highly optimized and available features to our customers. Over the years we have experimented with different programming languages, frameworks, databases, and libraries. Here is a short list of the technology that we currently use. Do not worry if you do not master them all or if you do not see your favorite tool or language, you will have the chance to be exposed to most and to convince us to expand the list:
What we have to offer you
Stream employees enjoy some of the best benefits in the industry:
Our culture
Stream has a casual social culture, our team is diverse and we all have different backgrounds.
Our talented developers are highly technical and collaborative, which makes Stream a great place to learn and improve your skills. When it comes to software engineering our culture is oriented towards ownership and quality: our goal is to deliver stable software.
If you are interested in becoming a part of what we do, apply now!
No recruiters/agencies please
We are looking for a full-time Backend Software Engineer to join our development team in Amsterdam (NL), or remote (CEST or close).
What you will be doing
Most of your day will be dedicated to software design, research, and coding. On typical projects, you will have a lot of freedom and you will be paired with another team member. Our team is made up of very experienced engineers, some with more than 10 years of experience. By working together you will learn from each other along the way. You will have an enormous impact on making our API service faster, more scalable and more flexible.
You will add new features to the service and find ways to make the existing ones perform orders of magnitude faster. Our customers have millions of users; they use Stream for mission-critical features such as showing content and exposing core functionality of their application. Building stable and reliable software is not just an option: as a member of the development team, you will design and write state-of-the-art software, follow best practices, measure everything and be responsible for deployment to production. You will also spend part of your time talking to our customers and help them to use Stream in their app.
The challenges
You have
Our tech stack At Stream we use a wide collection of technologies to offer highly optimized and available features to our customers. Over the years we have experimented with different programming languages, frameworks, databases, and libraries. Here is a short list of the technology that we currently use. Do not worry if you do not master them all or if you do not see your favorite tool or language, you will have the chance to be exposed to most and to convince us to expand the list:
What’s In It For You
Location - Amsterdam, The Netherlands - Remote (CEST or close)
If you are interested in becoming a part of what we do, apply now!
No recruiters/agencies please
We are looking for a full time Backend Software Engineer to join our development team. Job duties will include working on Stream's core API technology as well as designing and building high-performance software.
What you will be doing
Most of your day will be dedicated to software design, research, and coding. On typical projects, you will have a lot of freedom and you will be paired with another team member. Our team is made up of very experienced engineers, some with more than 10 years of experience. By working together you will learn from each other along the way. You will have an enormous impact on making our API service faster, more scalable and more flexible.
You will add new features to the service and find ways to make the existing ones perform orders of magnitude faster. Our customers have millions of users; they use Stream for mission critical features such as showing content and exposing core functionality of their application. Building stable and reliable software is not just an option: as a member of the development team, you will design and write state-of-the-art software, follow best practices, measure everything and be responsible for deployment to production. You will also spend part of your time talking to our customers and help them to use Stream in their app.
The 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
You have
Our tech stack
At Stream we use a wide collection of technologies to offer highly optimized and available features to our customers. Over the years we have experimented with different programming languages, frameworks, databases, and libraries. Here is a short list of the technology that we currently use. Do not worry if you do not master them all or if you do not see your favorite tool or language, you will 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
What we have to offer you
Stream employees enjoy some of the best benefits in the industry:
Our culture
Stream has a casual social culture, our team is diverse and we all have different backgrounds.
Our talented developers are highly technical and collaborative, which makes Stream a great place to learn and improve your skills. When it comes to software engineering our culture is oriented towards ownership and quality: our goal is to deliver stable software.
If you are interested in becoming a part of what we do, apply now!
No recruiters/agencies please