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£70k - £90k
Senior Backend Developer - London
Coda is a technology company with a mission to build the best mobile games for each individual user with help of latest design trends and technology available for personalized experiences. Experimentation, creativity, and data are at the core of what we do.
We are a well-funded seed stage company founded by mobile industry veterans who have worked together for the past 6 years and exited their previous company. The company is based in London, and we have team members in Berlin and Istanbul.
About our team
We are a group of entrepreneurs who came together to build great games. After having exited the previous company that we built together and sold, our key goal is to make an impact in an area we are all passionate about and have fun.
We started and built the biggest mobile ad network in the Middle East and Southern Europe region and sold it to AdColony, one of the biggest, the inventors of rewarded video ads in mobile games. Our expertise is in the commercialization of games at scale, enabled by complex technology platforms.
Our goal is to bring together the best talent that is fit to go after our mission, regardless of background and location. We believe in opportunity equality and in the ability of diverse thinking teams to make a world-changing impact. We are looking to join up with other risk takers to form the foundation of our team.
We are looking for experienced backend engineers to build the Coda platform from scratch. You will be one of the pioneer engineers who contribute to all parts and elements of the data platform we are building, from infrastructure to architecture to development.
You will work in a team consisting of experienced backend, data and machine learning engineers, directly reporting to CTO, for designing and building an integrated platform with numerous components and services, the primary intention being recording, querying and processing data. Agility, speed, robustness, security and availability are the core properties of the system we are aiming for. Although there are particular technologies we would like you to be experienced with, the main acceptance criteria for this role are system thinking ability, perfect problem solving skills and desire for constant positive contribution to Coda’s success.
Why join Coda?
*You’ll get to benefit from being part of a transparent and early stage team where you can get exposure to various aspects of a company whilst deploying your own expertise with a clear product vision and the funding to survive the chasm * You will work on some of the hardest technical and operational challenges in the industry - explore and break your own limits and help us break our own * Yes it’s mission impossible and yes we know our ambitions are slightly over the top but we bring experience and resources of a proven team that has achieved a wild dream before and is hungry for more * You will work with a diverse team that has learning, having fun and achieving long term goals as top priorities
$25k – $50k
Azumo is looking for a highly motivated Backend Engineer to develop and enhance high performing and scalable backend infrastructures in AI, NLP and conversational software environments.
This position will give you the opportunity to collaborate with a growing team and bright engineering minds in AI computing. You will enjoy the role if you love designing and developing scalable, high performant backend infrastructure using Java, Python, Node, open-source frameworks and connecting applications to modern cloud-based technologies.
Design, develop and test server features and robust APIs Integrate existing applications with third party systems Evaluate multiple approaches and technologies to solving a problem
BS or Master’s degree in Computer Science, related degree, or equivalent experience 3+ years experience with backend development, Java, Python or other OOP language Deep expertise with Linux and hosted cloud environments (Heroku, AWS, App Engine or other) Practical experience with open source technologies, including SQL and NoSQL DBs Experience integrating solutions with 3rd party APIs (RESTful, OAuth, JSON) Self-driven and motivated, with a strong work ethic and a passion for problem solving Strong Experience with backend development (Node.js / Express, GO (GoLang))
Prior experience with big data technologies Love for coding and willingness to be agile Hacker spirit within a collaborative team
The Backend Engineer will be based remotely. Compensation commensurate with experience and candidate potential.
At Azumo we strive for excellence and strongly believe in professional and personal growth. We want each individual to be successful and pledge to help each achieve their goals while at Azumo and beyond. Challenging ourselves and learning new technologies is at the core of what we do.
Based in San Francisco, California, Azumo is an innovative software development firm helping organizations build intelligent apps using the latest technologies in AI, data and cloud. We are passionate about solving key problems for customers around the globe.
If you are qualified for the opportunity and looking for a challenge please apply online at https://azumo.workable.com or connect with us at firstname.lastname@example.org
£40k - £100k
At Monzo we’re aiming to build the best current account in the world. We are always keen to hear from capable, creative engineers who want to help us accomplish that goal. We want our bank to be safe and secure for our customers, so security is very important to us
Security at Monzo
Monzo’s security team has a wide range of responsibilities, from infrastructure security to application security. As a bank, we are solving diverse, novel problems to ensure that our customers are safe and secure.
One of the guiding principles of security at Monzo is that security at the expense of user experience is a last resort. We aim to move mountains in the background such that we can build world-class features without compromising on security.
As a member of our security team you would be responsible for constantly improving the security of Monzo, and you would work closely with other teams to ensure that our systems are secure by design. Of course, security incidents can and do occur, and the security team is involved with many different types of incident response.
Our engineers have a variety of different backgrounds
We have several non-graduates; only some of us studied Computer Science; one of the team has a degree in Marketing; some of us have worked in huge companies; some have only ever worked in startups; others are former consultants. As long as you enjoy learning new things, we’d love to talk to you.
We encourage an open and transparent working environment
You can get involved in any aspect of the business you are interested in and, following Stripe’s example, all emails in the company are visible in an email archive. We regularly run hackathons in which people build things on our third party API and we contribute to open source software as much as possible. We’ve also made our product roadmap public and give sneak peeks of features in our community forum. Our blog is a good place to learn even more about what we do!You can get involved in any aspect of the business you are interested in and, following Stripe’s example, all emails in the company are visible in an email archive. We regularly run hackathons in which people build things on our third party API and we contribute to open source software as much as possible. We’ve also made our product roadmap public and give sneak peeks of features in our community forum. Our blog is a good place to learn even more about what we do!
Monzo works in project-based sprints in small, interdisciplinary teams
We have around 190 engineers out of roughly 1000 people in total - and we have big ambitions. As a security engineer here you’d be able to work directly with lots of teams across the company, and we run regular knowledge-sharing sessions so you’ll learn heaps about everything from how banks work to effective communication.
At Monzo you will get to work with a lot of exciting new technology.
We rely heavily on the following tools and technologies:
Go to write our application code (there’s an excellent interactive Go tutorial here) Cassandra for most persistent data storage Kafka for our asynchronous message queue Linkerd/Finagle for RPC Kubernetes and Docker to schedule and run our services (Oliver, our Head of Engineering, gave a great talk at KubeCon on how we use these technologies) AWS for most of our infrastructure React for internal web dashboards We also have two physical datacenter sites with actual cables to connect to various third parties You should apply if:
the work we’re doing sounds exciting! you want to be involved in building a product that you (and everyone you know) use every day you’re constantly looking for flaws in systems and can reason about how best to address them you’re keen to learn more about new technologies and the arcane inner workings of the financial industry you’re comfortable working in a team that deals with ambiguity you’re interested in distributed systems and writing resilient software you have some experience with strongly-typed languages (Go, Java, C, Scala etc.). Logistics
We can help you relocate to London, we can sponsor visas, and we’re open to distributed working (as long as you can spend around 20% of your time in London).
We have payroll set up in five countries: the UK, Ireland, France, Poland and Spain. Right now, we can only hire people who work from those countries and we’ll keep this updated with new ones as we expand and are able to hire from more places 🌎
We offer competitive salaries based on skills and experience, which could be anywhere between £40,000 - £100,000 per year.
We care deeply about inclusive working practices and diverse teams. If you’d prefer to work part-time or as a job-share, we’ll try our best to make this happen. Just let us know in your application so we can plan for it.
We’re usually always hiring for Backend Engineers in Security, so there’s no closing date for this job.
Our interview process is normally a phone interview, a coding task and call to discuss it, and 2-3 hours of onsite interviews. We promise not to ask you any brain teasers or trick questions. We might design a system together on a whiteboard, the same way we often work together, but we won’t make you write code on one
Questions about this role? Head over to our careers page to read our FAQs (www.monzo.com/careers)
Our interview process is normally a phone interview, a coding task and call to discuss it, and 2-3 hours of onsite interviews. We promise not to ask you any brain teasers or trick questions. We might design a system together on a whiteboard, the same way we often work together, but we won’t make you write code on one🔗 Link
€30k - €100k
Herdius is a Berlin based Blockchain Company. We are working on building homomorphic distributed private key generation which then is turned into value bearing products in different sectors. Currently we are very close to open beta-testing for the Herdius-Crypto-Wallet. What we focus on on the blockchain field specifically is interoperability and trading. When connecting different chains on the key level, users can eliminate communication channels, bridges and complex systems. In other words, users can do cross-exchange and chain token swaps very conveniently and profitably for the user due to the cross-exchange arbitrage opportunities. The broader vision is one day to replace API auth keys with public-private key cryptography in order to provide layered access to user data.
All this makes for a crypto eco system and hedge fund that pays interest on all cryptocurrencies (that right now are unfortunately somewhat unusable and just laying around on wallets).
About the role:
Herdius is seeking for a Gopher Guru - an experienced Senior Golang Backend-Developer - to join our team of smart and visionary individuals. Experience in Blockchain is not necessary but a big plus.
We do not look at this role as another standard job but rather as great opportunity to build something really meaningful und amazing. Become a member of our great collective of top nodge engineers and people - altogether working to create cutting edge tech for the masses.
Besides the Herdius HQ in Berlin our Dev-Team is working mostly remote on different time-zones - so this vacancy surely also is location agnostic.
We would expect you to contribute at least 20hrs per week for part-time but joining full time is possible, too.
Cool things you will work on:
Skills & requirements
Your education or professional experience at the end of the day does not matter to us. It all comes down to us being convinced by your skills and drive! We mainly look for people who are passionate about projects they work on and have the drive to see a project through. Our code is mostly done in Golang with some Solidity for connectivity with Ethereum.
How to apply:
Send anything that reflects on your knowledge and experience in the field. Besides a CV/LinkedIn-profile you can send links of your GitHub/Stack Overflow/Portfolio/ or something awesome you’ve built that you’re simply proud of.🔗 Link
$90k - $110k
The City3.0 platform will be the next generation of management software for regulatory agencies, businesses, and service providers.We will be taking a modular approach with a microservice architecture to help speed development and make future modules for potential new business units easy to connect in.
As part of the development team, you will be responsible for helping to build this new application from data model to API, as well as interfacing with other teams to gather feedback and demonstrate new features.
$60k - $100k
“X-Team provides high-performing, on-demand teams of developers for leading brands.”
X-Team is a 100% remote international company, originally founded in Melbourne, Australia. We help companies scale their development teams by providing them with extraordinary teams of developers from around the world.
We believe in living a life of freedom that allows you to spend more time getting energized by your passions. We’ve fostered a unique, active lifestyle and culture around this idea that continues to attract thousands of developers to apply every day. Our community is the most energizing community for developers in the world.
What separates us from our competition is the level of attention and care we give our developers compared to other more “talent”-based solutions. We proactively support them, fund their learning and growth, connect them in roaming hacker houses around the world, and give them a remote environment that motivates and inspires them on a daily basis. While other companies simply place and drop their talent, we foster and cater to our unified teams of developers centered around the same beliefs, values and lifestyle.
We’re uniquely situated to help shape how companies grow their businesses in the digital age and aid them in being able to do so properly with the right people.
Nice to have:
$10k - $20k
We’re looking for a Mid to Senior developer/DevOps (who knows Go preferably but not mandatory, it can be learned on the job). Join us at Apperto (apperto.co), where we connect small to medium communities (less than 500k inhabitants) using cutting edge technologies. Many features, multiple communities, a single app.
We are a small company that just got funded and we want to expand our engineering team. Currently we have 9 people working full time but only 2 in engineering, so we want you to be the third! You’ll be working side by side with founders and first employees, learning all about our system, planning and executing improvements. On the backend we have microservices (all of them written in Go) running on Kubernetes and communicated using gRPC. On the frontend we have a mobile app written in Flutter that communicates with the backend using gRPC.
E-mail me for more details!
$120 - $190
Tigera is looking for passionate and skilled Golang software engineers to join us in our mission to secure the next generation of cloud native applications. At the heart of our strategy is a set of open source networking and security projects (currently Calico, flannel, and Canal) that define the new gold standard for application connectivity within large scale cloud environments, such as Kubernetes, OpenShift, Docker, and related technologies. Building upon this open source foundation, we are working on complementary commercial offerings to help enterprises build and operate cloud native applications and infrastructures, securely and at scale.
You will be joining a team that is highly engineering-focused with a culture that values diversity, collaboration, agility and innovation, keeping us one step ahead in the exciting and fast moving cloud-native technology space.
Remote is possible Generous WFH policy Unlimited vacation🔗 Link
$80k – $160k
Swish is a world-class development studio whose teams have delivered products for Google, Microsoft, Kik, Nasdaq, Factset, and other major enterprises. The blockchain engineering team at Swish is looking for talented distributed systems engineers to optimize protocol transaction throughput and network reliability for blockchains in development.
Our mission is to bring the promise of a decentralized blockchain-based future to reality for clients.
As a systems engineer, you will work with our blockchain developers, protocol researchers and clients to implement and improve on a byzantine fault tolerant blockchain architecture based on the Tendermint consensus layer, by increasing the throughput, reliability and stability of the network. This role is ideal for engineers who have experience optimizing performance and robustness of distributed systems, and are excited to be working on the cutting edge of high-performance blockchain protocol development.
You might have experience as an Unix/Linux distributed systems engineer optimizing performance and reliability for large-scale cloud servers, and be relatively new to blockchain and distributed consensus protocols. Or you might be a blockchain engineer who is very familiar with distributed consensus protocols like delegated proof-of-stake, and newer to working on low-level performance optimizations. Experience with Tendermint is a huge plus. Either way, you are a great detective and passionate about pushing the performance of your infrastructure to its limits, without compromising on safety or stability.
We are also looking for: Strong communication skills. Experience with performance and load testing.
You should be motivated by a desire to solve the most important problems, obtain unprecedented results, and push your methods to their maximal performance.
Responsibilities * Optimize Tendermint consensus protocol codebase for speed, reliability and performance, including making PRs as needed to the OSS Tendermint project * Troubleshoot reliability issues of distributed systems, e. g. connection losses between Tendermint nodes under heavy load * Monitor the infrastructure and blockchain performance to identify issues * Measure and improve server response times in different conditions and environments * Guide protocol design decisions
Requirements * 1+ years experience with Golang, C or C++ * 4+ years of experience in a systems engineering role * Deep experience with networking and concurrent computing * Deep experience with Unix/Linux systems * Experience with AWS/GCP * Comfortable operating in dynamic environments
Bonus Points * Background in networking or distributed systems * Familiarity with Cosmos / Tendermint * Proficiency in protocol-level blockchain development * Contribution to open source software * Degree in STEM field, especially software engineering or computer science related. * Experience in small startup environments helping large enterprises. * Experience with a distributed team
Launched in February 2013, Swish is a fast-growing business with an innovative working culture and teams spanned across the world with teams in Toronto, San Francisco, Berlin, Auckland, Bruxelles, Medellin, and more.
We create products for successful business using cutting-edge technologies: Blockchain, Machine Learning, and Apps Dev. Working with Swish puts you in contact with prestigious brands, wherever your base is. We are a 100% remote-work company because we believe it is everyone’s choice to live and work the way they prefer.
Work is organized in sprints - 2 weeks periods to which, as a member of our talent community, you choose to commit. You always have the choice to accept or decline a sprint, or take-on multiple sprints simultaneously.
We let members choose what suits them best depending on their current situation: family, travel, studies, finance. We know life is not linear and we respect the humans behind the screens.
Our work ethic relies on six core values: Transparency, Directness, Meritocracy, Autonomy, Responsibility, Continuous Learning.
Ensuring a diverse and inclusive workplace where we learn from each other is core to our values. We welcome people of different backgrounds, experiences, abilities, and perspectives. We are an equal opportunity employer and a fun place to work.
Join the future of work today.
$53K - $58K
Resin.io provides a software platform that helps developers build, deploy and manage code on connected devices. We brought Docker to embedded GNU/Linux devices in 2013 and have been building our IoT toolkit ever since. We also maintain a variety of successful open source projects including Etcher, Balena, and resinOS, and made contributions to high-exposure projects such as Docker, Electron, and AppImage.
Our technology is open, standards-based, and proven in production across a wide range of scenarios from drones, 3D printers, point-of-sale devices, tidal turbines, skyscrapers and more. Our investors include DFJ, Aspect Ventures, GE, and Ericsson.
Resin is a highly distributed, remote-friendly company with a pretty much flat hierarchy. Our organization is adaptive, getting feedback signals from our users and systems. Right now we organize ourselves by projects, which allow us to build complex features and solve big problems, while staying mutable. As a distributed group, we rely on clear communication and the rule of “assume positive intent” to help us work together across time zones, cultures and first languages. Our base of operations is nominally London, though really we are living all over the world: from Barcelona to Bulgaria, Argentina to Vietnam, and many more.
We maintain a service infrastructure for IoT devices, and this is where we have quite a bit of our engineering talent. You will be actively working on one or more of these core components, fixing bugs, solving complex technical problems, and implementing user-facing features across the resin.io stack. While resin.io focuses on IoT, the majority of our engineers don’t require embedded programming expertise.
People who are successful engineers are well-rounded generalists and great communicators. They are eager to take responsibility for a project, and are able to make good decisions about the project because they have the context of what’s important.
We don’t require engineers to be already familiar with the technologies we use. We are happy to invest in people that showcase a strong understanding of the challenges of building secure distributed systems.
Need to have:
Nice to have:
Make sure to let us know if any of these items apply to you!
£116K - £125K
At Elastic, we have a simple goal: to solve the world’s data problems with products that delight and inspire. As the company behind the popular open source projects — Elasticsearch, Kibana, Logstash, and Beats — we help people around the world do great things with their data. From stock quotes to Twitter streams, Apache logs to WordPress blogs, our products are extending what’s possible with data, delivering on the promise that good things come from connecting the dots. The Elastic family unites employees across 30+ countries into one coherent team, while the broader community spans across over 100 countries.
The Beats platform is the basis for building open source shippers that collect all kinds of operational data, store it in Elasticsearch, and visualize it with Kibana. They collect data from edge servers, and are used to power application monitoring, infrastructure monitoring, and network monitoring. We currently have five official Beats: Filebeat for gathering logs, Packetbeat for network traffic, Metricbeat for metrics, Winlogbeat for Windows event logs, Heartbeat for uptime monitoring, and Auditbeat for audit data. In addition, the open-source community has created over 40 Beats, collecting data from all sorts of sources.
All current Beats are written in Golang.
As part of the Beats team, you will be responsible for maintaining the official Beats, for creating new ones, as well as for supporting the community around Beats. The team is diverse and distributed across the world, and collaborates on daily basis over Github, Zoom, and Slack.
Skills you will bring along