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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:
We are looking for an experienced backend software engineer to join our exceptional team of distributed systems engineers. We have embarked on a mission to create highly-scalable and performant micro-services that handle tera-bytes of data and analytics that feed into beautifully designed custom data visualizations. You will be responsible for architecting, implementing and testing new and existing systems that power our flagship product and help humanize the way content marketers interact with customers. Most importantly, your leadership as a senior and experienced member of the team will become an example for others to follow, and you will help shape and define our engineering practices and craftsmanship.
At Conductor, we are looking for engaged and passionate engineers that can raise the bar. There is a tremendous opportunity here to have immediate impact in the day-to-day and affect the company's success and growth. We all share in the same values and push each other to meet these standards.
We are made up of a diverse group of people from all backgrounds and include a team of exceptional engineers in Kyiv as well. Wherever you are from, you will find a common ground here for continuing to push forward your career and make a difference in this industry.
Conductor, Inc. is an equal opportunity employer. We celebrate diversity and are committed to creating an inclusive environment for all employees.
Conductor’s search and content intelligence platform helps marketers create and optimize content to improve visibility online.
The technology generates customer intent insights that lead to compelling content, increased traffic, and higher organic marketing ROI. Customizable dashboards and workflows guide marketers through the content creation process, empowering them to measure, refine, and demonstrate the effectiveness of their SEO and content marketing efforts.
In addition to its SaaS platform, Conductor offers a suite of services and support including site audits, site migrations, and managed services that empower in-house marketing teams and digital marketing agencies to drive results and put their customers' needs first.
Conductor's forward-thinking customers include global and emerging enterprise brands like Citibank, Salesforce, ClassPass, and WeWork.
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Please provide your personal blog and Github address in your notice of interest.
Job Description We are an exciting start-up company founded by proven leaders with repeated success in the technology space. Our newest company is developing a cryptocurrency platform based on an open-source third generation blockchain that we’re creating. Our goal is to set a new standard in security and protection for our end users and community.
We’re looking for a Golang Software Engineer who combines software and systems engineering to build and run large-scale, scalable, massively distributed, fault-tolerant systems for the Crypto market place. Reporting directly to the VP of Engineer the Golang Software Engineer makes sure that WON’s services, both internal and externally- visible systems have reliability, rock solid uptime to meet our users’ needs and quick improvement while being responsible for capacity, performance and scalability.
Responsibilities - Engage in and improve the whole lifecycle of services—from inception and design, through deployment, operation and refinement. - Support services before they go live through activities such as system design consulting, developing software platforms and frameworks, capacity planning and launch reviews. - Scale systems sustainably through mechanisms like automation, and evolve systems by pushing for changes that improve reliability and velocity.
Qualifications Minimum qualifications: - 2+ years of recent server-side experience in Golang - Knowledge of web technologies including HTML, CSS, JavaScript (JQuery or AngularJS), WebSockets is an advantage - Experience working with MySQL - Experience with Redis, MongoDB or other NoSQL solutions - Understanding of how to build and consume REST APIs - Building modular and scalable code - A sense of humor and thirst for knowledge
Preferred qualifications: - Interest in designing, analyzing and troubleshooting large-scale distributed systems. - Systematic problem-solving approach, coupled with strong communication skills and a sense of ownership and drive. - Ability to debug and optimize code and automate routine tasks.
Please provide your personal blog and Github address in your notice of interest.
Benefits - Competitive Salary - Awesome bonus - 20 days annual leave - 8 days personal leave - 100% medical, dental and vision insurance - Life insurance - 401(k) and FSA - Free shuttles between Caltrain Menlo Park and office - Gym on site, accessible 24/7 - Located on corner of Marsh Road and 101, by the Dumbarton Bridge exit. - Loads more!
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Are you passionate about building high performant products or using cutting edge technologies? Are you interested in defining our products, working closely with Product Management, in a fast-paced Agile environment? Are you looking to be impactful and contribute to engineering initiatives to achieve product goals with excellence? StackRox has an opportunity for you where you can contribute your skills, expertise, ingenuity and passion to help us succeed in our mission!
WHO WE ARE LOOKING FOR
We are looking for a software engineer who is skilled in building large scale distributed software systems that are highly performant while reducing the cost of deployment in cloud infrastructures. The ideal candidate cares deeply about performance, resource footprint, elegant coding with a great understanding of data structures and algorithms for enterprise-grade products, and is a fearless experimenter with a willingness to try new things. You'll fit right in if you like solving challenging problems by architecting elegant solutions, designing algorithms and writing code.
QUALIFICATIONS
PREFERRED QUALIFICATIONS
ABOUT US
StackRox helps enterprises secure their cloud-native applications at scale from container build and deployment through runtime. Founded in 2014 by Sameer Bhalotra (former White House senior director for cybersecurity) and Ali Golshan (former co-founder and CTO of Cyphort), StackRox has assembled a team of experts in security, infrastructure, and machine learning. StackRox enables security teams to centralize container deployment governance, visualize the container attack surface, expose malicious activity, and stop attacker activity. It combines a new security architecture, machine learning, and protective actions to disrupt attacks in real time and limit their impact. Partnered with Docker, Amazon, Google, IBM and Red Hat, StackRox is the choice of both Global 2000 and emerging cloud-native enterprise companies.
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Expa is a startup studio led by the founders of Uber, StumbleUpon, Foursquare, AddThis, and Metrolyrics. After 10 years designing and building consumer services, the Expa team has identified many techniques that help create successful companies. With $150 million funding to date, the team founds new companies based on internal ideas, and occasionally collaborates with founders of early-stage companies whose missions Expa believes in. We help companies avoid common pitfalls in early-stage ventures, and actively remove roadblocks along the way, specializing in product strategy, system design, and user experience.
Expa has a strong presence in San Francisco and New York City, and has recently expanded operations to Vancouver, Canada. We are actively looking to hire the best talent to be a part of our growing team.
You can read more about Expa on our site. The project you would be involved in is under stealth and more information will be provided at the time of interview.
JOB DESCRIPTION
We are looking for experienced software engineers, with strong backend experience in Cloud based environments excited for the challenge of working with a small team of front-end engineers. The position requires excellent problem solving and engineering skills when working with systems at scale. We are seeking individuals that are motivated to build cutting edge backends for products and manage the underlying infrastructure and deployment processes. The perfect candidate will be comfortable working closely with front-end engineers and can communicate effectively within a small team.
RESPONSIBILITIES - Build scalable, secure, effective and well documented backend systems in alongside well motivated front-end engineers - Collaborate with front-end engineers to ensure on-time and performant solutions - Assess and build test frameworks for backend systems, as well as track metrics and performance over time - Ensure that code written is to a high standard, with excellent reusability - Help develop a service orientated architecture for cutting edge products
SKILLS & REQUIREMENTS - Strong development skills with Go ( golang ), NodeJs or Python for backend development - Ability to write clean, maintainable and well documented code - Strong understanding of front-end development and integration of services and APIs for front-end developers - Experience with Elastic Container Service and Docker is a must - Ability to maintain and manage databases and infrastructure within AWS - Understanding of Highly Available infrastructure environments and systems - Experience with infrastructure management and deployment through Automation tools and systems - Comfortable with OS Internals / Infrastructure on Debian, Redhat and Ubuntu systems - Experience with load balancing and web server technologies (Nginx, HAProxy) - Ability to build scalable infrastructure on Amazon Web Services (EC2, RDS, S3, ES, ECS, ELB etc) - Strong understanding of network communications within Cloud environments - Computer science degree or equivalent experience - Security hardening / experience with SANS or OWASP frameworks
YOUR BENEFITS - A competitive base salary - Stock options - Full medical and dental benefits - A very flexible vacation policy - Custom workstation designed to your needs - A beautiful office in downtown Vancouver and a talented team
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MISSION : Your mission will be to ensure that Agricool's cooltainers operate as designed to deliver best of class taste and yield. Your responsibilities will include :
REQUIREMENTS : - Problem-solving mindset, appetite for diagnosing various classes of complex problems - Very good knowledge of the linux kernel, including the network stack - Good knowledge of at least one scripting language (shell, ruby, python, etc.) - Experience with at least one IT automation platform (Chef, puppet, ansible, etc.) - Software polyglot: ability to read and understand advanced Java, C++, golang, TypeScript, etc.) - Ability to jump between various technologie, open-minded and believing in the "right tool for the job” - Hardware and micro-electronics culture
We are looking for a Senior Software Engineer who can turn ideas into reliable, beautifully written code that other people will find easy to comprehend and modify. You have a fundamental understanding of distributed systems and how Linux works behind the scenes. All additional experience in low-level systems is considered to your benefit. Experience and understanding of blockchain are not mandatory.
Do you self-identify as a great problem solver?
Have you been honing your innovation craft for years yet yearning for more complex challenges?
Does the opportunity to play a key role in the launch of a software platform with massive impact (for millions or even billions of people) excite you?
If you’ve answered with 3 resounding yeses, then we want to meet you!
What We Expect We are a cutting-edge web3 infrastructure scale-up project seeking a few very talented developers who are not just looking for a job but want to be challenged to accomplish great things in an exciting venture.
We are the veterans of many successful startups and will put you on the accelerated learning curve toward your future success.
We are looking for an experienced Lead Golang Engineer who has designed, built, and operated high-throughput, highly resilient distributed data systems. This is a rare opportunity to work with a number of talented innovators on building a protocol that can change the data cloud landscape, e.g. decentralizing big data.
This core systems development position will challenge you to drive the design and development of significant system software components with a highly collaborative, test-driven, and rapid prototyping approach. In addition, you will definitely need to build upon your previous innovation and operational experience with highly scalable distributed systems that provide availability, reliability, and performance guarantees.
About Cere Network Cere Network is the decentralized data protocol powering the future of web3 with trustless content sharing and cloud data interactions between apps, users, AI/ML, and (NFT) assets. Cere is backed by the world’s largest institutions and projects, including Binance Labs, Republic Labs, and Polygon.
Our Ethos We look for a few things across all hires we make at Cere, regardless of role or team: - We seek teammates who will thrive in our fast-paced work environment, where we default to methodical, simulation-driven, fast development iterations and a first-principle thinking mindset. - We crave teammates with high standards and strong discipline, embracing a growth mindset to continuously learn and incrementally improve habits and processes. - We require contributors to have excellent communication skills (esp. written), for everything must be well organized and tracked in Notion, Slack, Wiki’s, etc. We want autonomous, goal-oriented individuals who embrace transparency and accountability. No one wants to micro-manage others. - We need good teammates who are generally cool people who want to be part of a great team & decentralized community where everyone truly helps and challenges each other to learn/grow by innovating together towards greater shared goals. Embracing the building of such a collaborative community is the only way we can sustain rapid innovation (and the only way to live/work, really).
Requirements: - 5+ years of extensive programming experience with Golang. - Deep understanding of system design, data structures, and algorithms. - Experience with concurrency, transactions and parallel execution. - Experience with cryptography (encryption and signatures). - Systematic problem-solving approach coupled with effective communication skills.
Nice to have: - Experience with distributed databases and/or storage systems. - Database engine internals (storage): indexing, access methods, concurrency control, logging, caching, transaction processing, replication, backup restore, and buffer management. - Database engine internals (query processing): query compilation, optimization, execution, parallel execution. - Distributed systems: consensus-based quorum replication, peering networks system implementation.
Tech stack: - Golang - libp2p - BadgerDB - Substrate-based blockchain API - Crypto libraries for asymmetric encryption and signatures
A bit more about our Multinational, High-Performance (and primarily remote) Team Join a highly talented multicultural team that is based all over the world. We have offices in San Francisco, New York, Warsaw, Amsterdam, Berlin, and several locations in Asia. As stated above, we make remote working possible by embracing our ethos, yet many teams also travel to meet in person every 1-2 months. We all want high degrees of autonomy and flexibility to make life and work fun, but transparency, accountability/ownership are the requisites.
Clearmatics is a protocol engineering company. We are building a new financial market architecture that is more open, fair, and resilient than the legacy systems that are in use today. We develop protocols and software that create new markets for risk and more efficient infrastructure for trading, backed by a robust and scalable blockchain network, and secured with modern cryptographic techniques and economic mechanism design.
Clearmatics is based in London but operates on a 'remote first' model. We welcome candidates from all over the world. We have close ties to the Open Source and Ethereum communities, with Vitalik Buterin as an adviser.
The Engineering team at Clearmatics is responsible for developing our blockchain software at Layer 1 and Layer 2. At the core of our stack is the Autonity client, the node software that powers our blockchain network. It is based on Ethereum (go-ethereum) and is secured by Tendermint Proof-of-Stake consensus. Our decentralised platforms are built on smart contracts and decentralised applications, and are supported by backend services in Go.
We're looking to hire a Core Developer to expand our Layer 1 Engineering team.
ABOUT YOU
You're a systems programmer with good knowledge of Layer 1 protocols, and a passion for blockchain and decentralisation. You enjoy working to a high standard and writing code that is clean, performant, and maintainable. You appreciate the importance of careful design choices and can anticipate the impact of code changes on wider system behaviour. You can demonstrate a strong interest in blockchain and may even have open source contributions that you can highlight. You express yourself clearly in writing and in discussions.
RESPONSIBILITIES
You will be involved at all stages of the development lifecycle for the Autonity protocol and its blockchain node client (a fork of go-ethereum). These include: - Implementing new protocol features in Go and Solidity - Developing new distributed systems tests and frameworks - Contributing to protocol and design specifications - Working with members of the community to resolve issues - Your work will ensure that Autonity client is correct, reliable, performant, and secure. This will enable Autonity to serve as the foundational layer for a new ecosystem of decentralised markets.
REQUIREMENTS
BONUS POINTS
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ChainSafe Systems is a blockchain R&D firm on a mission to realize the potential of Web3 infrastructure through sustainable, open-source development. Our vision is to create a world with organizations that empower people to build and innovate through blockchain agnostic tools and other distributed technologies.
We are global leaders in the industry, unique in our work across multiple blockchain ecosystems, and currently are pioneering technology and infrastructure related to Ethereum,, Polkadot and Filecoin. We are actively pursuing the development of our own product suite, having recently released Files and Storage, which allows users to upload and store files on IPFS and Filecoin with the goal of furthering development to provide a decentralized alternative to cloud storage.
ChainSafe is a unique company in a unique space, growing quickly and building a global reputation in this nascent space. Beyond offering experience across every major blockchain space to our team, we provide an open, inclusive, and supportive environment where we help folks reach their full potential as a human and as a professional.
Here’s what you might want to know before reading on:
Culture fit and alignment to our core values are extremely important to us. We are fueled by an immense intellectual curiosity of what technology can do and the impact it can have. You will thrive here if you are intensely driven by tackling technical challenges that no one else has solved yet and are inspired by the possibility of building the next generation of web infrastructure and decentralized systems.
Responsibilities
Required Skills
Bonus Skills
We strongly encourage you to apply even if you don’t fit all the requirements. You don’t have to match all the listed requirements exactly to be considered for this role.
Hiring Steps
Candidates for this position can expect the hiring process at Chainsafe to follow the order below. Please keep in mind that candidates can be declined from the position at any stage of the process.
We welcome your fresh perspectives and ideas
At ChainSafe, diversity and inclusion are more than a statement; equality and accessibility are guiding principles embedded in who we are - and why we do what we do. We recognize the benefits of a diverse team and aspire to embed respect for all people into our culture, values, and day-to-day practices. We encourage women, LGBTQIA+ people, people of colour, and members of any other group underrepresented in the blockchain space (or tech in general) to apply.
ChainSafe is a remote-first company with an international team. We offer opportunities for personal and professional learning and growth, value autonomy and responsibility, and have a results-driven environment, flexible work hours and time-off policy, as well as competitive salary.
Salary will be determined through the interview process after a review of experience, knowledge, skills, abilities, equity, and location, as well as alignment with market data. The estimated salary range for this position is $84K - $120K USD.
To apply for this position, please fill out the linked application form and please attach your CV/resume as well as a link to your Github/Gitlab profile or some other software project you h