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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
$110k – $135k
Wanderu, a 2016 Inc Magazine Top 15 Company, is a fast-growing startup that simplifies the process of comparing and purchasing ground transportation in more than 40 countries. Wanderu instantly searches over 200 different bus and train operators, routes, and schedules, empowering millions of travelers to find the right trip for them at the best price. Be a part of an exciting, fast-paced startup environment and make a difference in the world.
We hire people who are driven, solutions-focused, and passionate about their work. Our employees never fill a single role and always rise to new challenges with excitement and curiosity.
We are seeking experienced engineers to join our Platform Engineering team. In this role, you will be key to the development and management of the Wanderu technology platform. As a member of this team, you will work closely with others in an exciting environment using the latest technologies including NoSQL and graph search technologies. You will start fast and ship features and fixes in your first week.
You learned CS concepts in school like linked lists, graphs, Big “O” notation, search and sorting, but you wondered why everybody used a relational db for everything.
You thrive in an environment that doesn’t get bogged down with red-tape and encourages creative solutions to complex problems.
You desire to have an impact with what you do and want to see what you build help people.
You know that there is never just one path to a solution and that the key is finding the solution that helps move the product and team forward quickly without sacrificing quality.
You like to travel and wondered how technology could have made the experience better.
When you run into every-day problems, you think to yourself “How can I automate this?” or “How can I make this work better?”
When you were a child, you disassembled your toys to see how they worked. Most of the time, the pieces came back together in the right order.
Your engineering career started on the front-end or the back-end, but you feel comfortable contributing across the full stack.
• We are polyglots for everything – coding languages, frameworks, databases, and human languages • We choose the best technologies for a given problem and are not afraid to try something new • We implement Python, Golang and node.js for our APIs, backed by MongoDB, PostgreSQL, and a myriad of AWS resources • We employ agile methodologies (combination of Scrum and Kanban) and deploy to production frequently • We negotiate on “right” vs “right now” to deliver a minimally viable product to our customers as quickly as possible, analyzing the results and building on them to continuously improve. • We are a team and support each other on all challenges • We maintain standards of code quality and testability • We have fun together and celebrate each other’s accomplishments
• Experience with writing scalable REST Services backed by high-performance databases • Experience with designing and developing high-volume transactional e-commerce systems • At least 3-5 years of experience developing with node.js, Python or equivalent languages for high traffic websites Desirable skills • MongoDB / PostgreSQL / Redis experience • Experience building scalable I18N/L10N support for data models and APIs • Experience working with geolocation APIs and data • Knowledge of Apache Kafka, Elasticsearch, and AWS resources like SQS, Redshift and RDS
How to apply
If you think this describes you, email us your resume along with any additional requirements to email@example.com.
Benefits • Health benefits including dental & vision • Remote and Work from Home Friendly • Stock options – all employees benefit from the performance of the company • Unlimited vacation policy • Quarterly Internal Hackathons where we get to work on crazy fun ideas • Lunch & Learns by industry leaders • Ping-pong table • Compensated travel tickets • Fully stocked snack kitchen • Team outings • Happy hour every Friday
We are an equal opportunity employer and value diversity at our company. We do not discriminate on the basis of race, religion, color, national origin, gender, sexual orientation, age, marital status, veteran status, or disability status.
$156k - $264k
GRT is carefully searching for new Systems/DevOps candidates for a high profile, global commerce engagement.
GRT’s search for this new person is focused with all of our past success factors in mind. We are looking for a solid foundation of technology understanding and work/school experience; we are also equally interested in promising communication skills, and growth potential of any candidate.
Skills & Requirements
Preferred Skills (some subset of the following concepts as applies to different roles):
$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!
$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.
$85K - $124K
About the company
ConsenSys is a venture production studio and the leading technology firm in blockchain globally. We deliver products, solutions and platforms built using blockchain technology to transform how business is done in complex network of buyers, suppliers and consumers.
Our teams are busy at work building the future of identity, financial markets, commerce, the music industry, security, and infrastructure, and more. To accomplish this we’ve built out a flat organizational structure which we call the ConsenSys Mesh: a network of individuals & teams working autonomously and towards the same goal. If you are someone that thrives in a fast-paced environment where being self-directed, determined, and resilient are a requirement, we would love for you to join us.
Permanent - Remote work possible
About Balanc3 at ConsenSys:
The Balanc3 team is building and developing financial reporting products on the Ethereum blockchain. We’re leading the accounting initiatives in the blockchain industry through our accounting software platform, full service partnerships, and accounting industry involvement. We have brought together leaders in both the accounting and blockchain industries to inform the design of our products.
About the Role:
We’re seeking a Backend Engineer who is a self-starter and quick learner with a keen interest in Ethereum and blockchain technologies. Our ideal candidate is one who communicates effectively and consistently ships high quality, well-tested code.
Design and implement backend services - APIs, web services
Integrate with developed frontends
Collaborate with the team with well communicated and documented processes
Develop high-quality software design and architecture
Identify, prioritize and execute tasks in the software development lifecycle
Develop tools and applications by producing clean, efficient code
Automate tasks through appropriate tools and scripting
Review and debug code
Perform validation and verification testing
Collaborate with internal teams and vendors to fix and improve products
Document development phases and monitor systems
Ensure software is up-to-date with latest technologies
Here are some of the perks of being part of a unique organization like ConsenSys:
The forefront of a revolution. At ConsenSys we fundamentally believe that a next generation of technologies presents the opportunity to create a more just and equitable society.
A dynamic startup environment. ConsenSys is a thought leader in the blockchain space and we are absorbing a significant portion of the mindshare. This is both exciting and challenging, as we learn to scale our organization while adhering to the principles of decentralization.
Continuous learning. You’ll be constantly exposed to new languages, frameworks and ideas from your peers and as you work on different projects – challenging you to stay at the top of your game.
Deep technical challenges. This entire ecosystem is about 10 years old. Ethereum itself is still a toddler. There is much work to be done before these platforms can scale to the order of millions or billions of users. ConsenSys is building the technology platforms that can get us to those next thresholds of scale.
Skills & requirements
At least three years of backend engineering experience, a large portion of which was in a team environment
Programming Languages: Node, GoLang, Rust
Fintech experience is a strong plus
Blockchain / Ethereum experience a strong plus
Database experience: MongoDB, Redis, Postgres