Katana Labs is looking for experienced full stack engineers. We are a well funded FinTech startup based in London, working on an AI powered trading platform. Your main focus will be developing Go applications but we’re looking for a strong all rounder with experience in containers, kubernetes and cloud as well as the occasional frontend task. A DevOps mindset and focus on QA is a must.
Requirements - 5+ years of full stack experience - 2+ years of production grade Go experience - 1+ years of kubernetes experience - 1+ years of cloud experience
Tech Stack - Go - React - Kubernetes - PostgreSQL - Google Cloud Platform
Location: Remote (preferably UTC+3, UTC-3)
Hallmark Labs is the digital arm of Hallmark Cards, Inc., based in Santa Monica, California.
We currently operate two digital subscription services, Hallmark Movies Now and
Hallmark eCards, as well as ongoing initiatives in personalized, print-on-demand
greeting cards. We are a diverse team of innovators, creators and influencers
leveraging Hallmark’s deep experience in creating meaningful connections and
progressing it into the digital age with cutting-edge technology.
Senior Software Engineer, Platform - Go/Microservices
You're a seasoned polyglot engineer that is driven, takes ownership and is solution oriented and ready to join a stellar new team working on cross product foundational platform, shared by all our products written in Go. You'll be building robust and scalable software in multiple modern object oriented and functional languages. And making the company transitions to microservices using Go and Kafka.
As a part of this role, you will:
Required Qualifications:
Preferred Qualifications:
QA Engineer (Go, blockchain, distributed system)
Swarm is a system of peer-to-peer networked nodes for a decentralized storage and communication service.
Swarm could shape the future towards a self-sovereign global society and permissionless open markets. On Swarm, applications run autonomously yet securely in a planetary-scale deployment and execution environment.
Bee is a Swarm client implemented in Go. It’s the basic building block for the Swarm Network. Bee provides low level constructs for file storage, feeds, key-value stores and untraceable communication, through solid, well-tested code delivered in an agile manner.
Key technologies are Go, libp2p, protobuf, leveldb, and go-ethereum, as well as various cryptographic libraries.
Your role: This role expects the candidate to function as a large node operator, conducting testing and immersing themselves in the responsibilities of node operators. This requires experience in a comparable QA position, as well as an interest in DevOps-related areas. However, we consider motivation and initiative-taking to be the most crucial qualities that the ideal candidate should possess.
The responsibilities of the role: Writing and executing end-to-end test scenarios on testnet and mainnet in order to assure performance and reliability. Submit detailed bug reports and issues to our developers' team. Give the green light to the developers' team to proceed with a release. Be an active part in shaping the way our products are built by analyzing how functionality, user experience and performance could be improved.
This role is an excellent opportunity, as in the future we expect the QA team to grow and therefore this role could open the possibility of becoming the QA team lead.
Your profile: * You have at least 3 years of hands-on experience in a similar position. * Solid understanding of distributed systems * Experience in executing manual and automated tests interacting with the API. * Be able to set up different environments to perform automated testing on them. * You are familiar with the blockchain ecosystem. * Experience in managing panels and dashboards for monitoring, * Familiarity with Ethereum is a must. * You can express yourself fluently in English, both verbally and in writing. * You manage your own time effectively and respect time constraints. * You like to take initiative. * You are available around CET timezone.
We appreciate: * You are familiar with Golang. * Exposure to infrastructure-related tasks (will be needed to set up environments). * Familiarity with Grafana, Loki and Prometheus * General acquaintance with cryptographic concepts. * Experience with the Javascript ecosystem.
We offer/Team perks: * An open, flat and transparent work environment * 100% remote-friendly * Flexible working hours * We care about our swarm: Incentives through BZZ, our token
To apply, please send your CV and GitHub repo to talent@ethswarm.org.
Swarm is a system of peer-to-peer networked nodes for a decentralised storage and communication service.
Swarm could shape the future towards a self-sovereign global society and permissionless open markets. On Swarm, applications run autonomously yet securely in a planetary-scale deployment and execution environment.
Bee is a Swarm client implemented in Go. It’s the basic building block for the Swarm Network. Bee provides low-level constructs for file storage, feeds, key-value stores and untraceable communication, through solid, well-tested code delivered in an agile manner.
Key technologies are Go, libp2p, protobuf, leveldb, and go-ethereum, as well as various cryptographic libraries.
Should you be interested in the position, please send your CV and GitHub repo to talent@ethswarm.org.
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
Senior Software Engineer (Go, blockchain)
Swarm is a system of peer-to-peer networked nodes for a decentralised storage and communication service.
Swarm could shape the future towards a self-sovereign global society and permissionless open markets. On Swarm, applications run autonomously yet securely in a planetary-scale deployment and execution environment.
Bee is a Swarm client implemented in Go. It’s the basic building block for the Swarm Network.
Bee provides low level constructs for file storage, feeds, key-value stores and untraceable communication, through solid, well-tested code delivered in an agile manner.
Key technologies are Go, libp2p, protobuf, leveldb, and go-ethereum, as well as various cryptographic libraries.
Your role: Take architectural decisions for our p2p distributed network Suggest improvement solutions for our codebase and the testing process Development of the reference Swarm implementation in Go aka Bee Developing domain-specific knowledge and expertise in the Swarm incentive layer implementation Bringing code up to spec Delivering well-tested code Conducting thorough code reviews to your peers
Your profile: You have 5+ years of experience in a similar position & at least 3 years with GoLang You have experience in working on large-scale distributed systems Familiarity with infrastructure tools (we use k8s, helm) You follow SOLID principles You like to work in a fast paced environment Strong sense of ownership and responsibility You manage your own time effectively and respect time constraints You like to work remotely You are available around the CET timezone You can express yourself fluently in English, both verbally and in writing
We appreciate: You have a solid grasp of blockchain principles and application design considerations Experience with libp2p You are familiar with go-ethereum Acquaintance with cryptographic concepts Knowledge of monitoring tools (we use Grafana, Prometheus, Jaeger and OpenTracing) Knowledge of Solidity A passionate open-source contributor
We offer/Team perks: An open, flat and transparent work environment 100% remote friendly Flexible working hours We care about our swarm: Incentives through BZZ, our token
Should you be interested in the position, please send your CV to talent@ethswarm.org
Why CAST AI?
We are on a mission to simplify Kubernetes & its Cost Management on the cloud.
There are lots of aspects to our vision such as performance, security, and resiliency to name a few. Our product must be easy to understand and create value seamlessly. Our motto: Less friction equals happier customers.
CAST AI already brings 50% to 75% cloud savings to the most popular managed K8s platforms (such as EKS, GKE, and others). Imagine the challenges we face on a typical customer cluster with a $100k monthly bill.
This is just the beginning of our product. There are so many cool things to be done. We need smart, result-driven engineers to help us with that!
What’s in this position?
Autoscaler team is looking for a Senior Software Engineer to expand its rapidly growing team.
At autoscaler team, our day is usually full of challenges. Have you ever encountered the situation where you need to expand your cloud infrastructure, in order for certain workloads to be deployed, and once the demand is low, to cut back on your cloud spendings? Most of us probably did, or at least know the many paths that need to be taken in order to achieve that.
One of the team's responsibilities is to make sure that whenever a customer is about to deploy something the burden of making sure that things are running & not costing unnecessary money is uplifted from them. These are just couple small pieces of a bigger puzzle. To get into a more detailed perspective, try to answer the following questions:
These are just several of the many questions that are part of the daily job when working in this team.
Being part of this team would involve design and decision-making end-to-end while collaborating with colleagues from other teams. CAST AI being a technical product, it is encouraged, not only to go and code something as written in the JIRA ticket but also to come up with new features & potential solutions to the problems that customers are facing.
Here are some of the tools we use daily:
What’s in it for you?
Location is remote (EU-based).
WalletConnect is the open-source web3 standard to connect blockchain wallets to dapps. Started four years ago, our mission is to make web3 accessible to everyone. Every month, millions of people use WalletConnect in over 200 integrations.
We’re looking for a backend golang engineer to join our team to build and scale our network. To help grow web3, we recently launched WalletConnect 2.0 with new features, including multi-chain support, a decentralized back-end, faster connections, and 10x performance and scalability. You will help us expand and scale our backend messaging infrastructure.
To learn more about our plans for 2.0, take a look at our recent presentation at EthCC. https://www.youtube.com/watch?v=8cBIw7lFNnU
You will be responsible for building Golang messaging services. A main challenge is growing our services to scale for our millions of users across billions of websocket connections every month, as well as ensuring security and resiliency.
To help with your role, you will have the support of our devops team to deploy and manage our infrastructure, will work closely with our protocol and SDK teams, and have exposure to the full WalletConnect stack.
The ideal candidate is immersed in the best practices of golang at scale, messaging systems and Websockets.
Responsibilities:
Must have:
Nice to have:
What WalletConnect offers:
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
Anapaya Systems is looking to strengthen its team with a Software Engineer. Play a mission-critical role and assume ownership in the entire lifecycle of our products: design, implementation, quality assurance, deployment, and operation. As part of a growing world-class engineering team you will have the opportunity to develop your skills through constant exchange of ideas, a wide spectrum of challenges, agile development processes, and a best-of-breed technology stack.
If challenges excite you, and you are ready for a large one, let us know.
Responsibilities
Requirements
Nice-to-Haves
Our technology stack