At Upvest, we are building the financial infrastructure of tomorrow. Our vision is to create a world in which any asset can be owned and traded digitally by anyone, anywhere. Our bold long-term view is backed by Europe's largest tech VCs Notion Capital, Partech and Holtzbrinck Ventures. Today, we count 22 talented people from 10 different countries and we want to keep expanding our international Upvengers team.
Your mission:
We are seeking a full-time backend engineer to build a securities API for financial institutions, the first such API in Europe. Your goal is to take ownership of designing, developing and maintaining microservices written in Golang.
A greenfield project. Cutting edge technologies. No legacy code.
This role will give you the opportunity to:
Build fault-tolerant, horizontally scalable systems. Using Microservice architecture powered by Docker, Kubernetes, Kuma service mesh and Kong as a Gateway.
Build event driven applications using NATS
Work on different aspects of our API-product portfolio as part of the development team
Develop data processing and storing mechanisms
Work on improving the reliability of our API tools, as well as developing innovative tools
Work with an agile methodology: in the end of the 2-weeks sprint cycle we have a demo with retrospective to make our software delivering faster
Requirements:
At least +2 years of experience and passion about Golang and distributed systems
Fluency with SQL databases such as PostgreSQL, transaction isolation, performance optimization
Fluency with event driven architecture and concurrent algorithms
Be proactive in learning new stacks and have a high sense of taking ownership
Excited to work in a fast-paced and dynamic startup environment
Nice to have:
Experience with Docker, k8s, understanding principles of a service mesh
Experience with Monitoring and Tracing using opentracing/opencensus/opentelemetry/elastic APM
Understanding of encryption algorithms and their application
Go Software Engineer radio.de GmbH Hamburg, Germany €50,000 to €60,000 a year
October 2019
3 Applicants This Week
More Than 6 Months Old
Job Description
radio.net is an established startup with millions of users worldwide. For 10 years we have been the most successful radio app and website and now on the way to become the best podcast player. For this we need developers who want to find our product and our goals cool and want to move things in a great team.
You'll get a steep learning curve in our backend team with 4 senior developers. We work with agile methods and modern, automated release processes and a good work-life balance.
The day-to-day tasks mainly include designing new features, developing in Go, and integrating with our deployment pipeline with gilab and AWS CloudFormation. Your loyal fans are the front-end teams who are looking forward to any new or improved API endpoint.
We work according to the principle "you build it you run it". As we host on AWS, basically automating everything with CloudFormation and testing our releases very well, fortunately rarely gives a real problem and thus quiet nights.
You already have at least 2 years experience in software development with Java or Go and you are ready to develop yourself and your skills steadily. You've learned and sometimes used common best practices, design patterns and testing approaches.
Does that sound like a suitable challenge for you?
Apply now via email to jobs@radio.net or directly via Stackoverflow and we will make a phone call in the next step.
Back End Developer (m/f) Quoori Hamburg, Germany €55,000 to €70,000 a year
April 2019
2 Applicants This Week
More Than 6 Months Old
Job Description
We‘re looking for a Back-End Developer (Golang) capable of taking mobile application design to the next level. Because you’re joining us at the beginning of our journey, you’ll have the unique opportunity not only to shape your role at Quoori, but also part of the DNA that Quoori will be known for.
As our Back-End Developer, you’ll
Deliver innovative, engaging cloud products on mobile devices and mobile web apps
Lead the way on project architecture and database structure while utilizing best practices in performance, stability, scalability, and security
Work closely with front-end developers across the organization to continuously improve our ability to deliver awesome mobile experiences quickly
Contribute to concept development with multi-disciplinary teams of developers, creatives, and producers
Analyze and evolve components to scale and address new requirements
Who You Are
You're a brilliant problem solver, quick grasp, self-starter, and excellent communicator with a passion for your work. We’re looking for someone who’s excited about being part of our journey.
Position Requirements (must haves)
2+ years of experience as a back-end-developer
Must have experience with server-side-programming-languages (Golang, Java). Most interesting to us is hands-on Golang experience.
Experience in multi-cloud architecture and knowledge of edge computing
Experience in designing, deploying and running 24/7 services at a production level
Creative problem solving; independent (and team!) thinking; great communication skills
Basic knowledge of emergent technologies like Machine Learning and Big Data
You should be business functional in English as we are located in Hamburg with our corporate headquarters in San Francisco. There is a potential opportunity for travel to the US.
Backend Golang Engineer Wallet Connect Remote / Berlin, Germany $85,000 to $100,000 a year
December 2021
6 Applicants This Week
More Than 6 Months Old
Job Description
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.
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:
Building a microservice architecture based on Golang with scaling in mind
Work with protocols such as Websockets, gRPC
Help with monitoring by creating metrics with Prometheus and Grafana
Develop unit and integration tests for core business logic
Work closely with our devops team to manage and scale our infrastructure
Must have:
3+ years professional experience in software development at least one modern programming language, including Golang, TypeScript, C++, Java, or Rust.
At least 1 year of professional Golang experience.
Experience using Postgres, AWS, with demonstrable experience with systems engineering and automation.
You have experience with network programming or distributed systems development
Experience working on products at scale
Nice to have:
Experience working on systems optimisation
Experience with k8s or Nomad a plus
Desire to learn more about Blockchain technologies or experience with PoS systems.
Familiarity with operations/SRE and the concept of infrastructure as code
Websocket experience
Benefits
What WalletConnect offers:
Fully remote position with flexible timezone (CET/EST preferred)
We are looking for a Software Engineering Intern, who would help us build our core identification platform and infrastructure. Our backend is built in Ruby on Rails and as our colleague you would be helping us to extend it, write APIs and integrate our backend with different other third-party vendors (machine learning, fake ID detection, fraud detection etc.).
You would also receive an individual project, where you can take full ownership over a part of our system, get coaching, 1on1 sessions with experienced developers from our team and make an impact on our product from day one.
We expect you to:
Manage project priorities, deadlines, and deliverables with your team colleagues
Be self-driven and come up with new ideas on how to improve our product
Channel attention to detail in everything you tackle
Possess excellent communication skills & high levels of empathy
Demonstrate openness to feedback and radical transparency
Encourage ambition in others
Ideally be fluent in 2+ languages
Be hungry for a revolution in digital identity
In return we’ll offer you:
A chance to work on one of the most exciting problems of the 21st century
A diverse international team backed by leading VC’s
A competitive salary
Regular team events
Flexible schedule & WFH opportunities
and one more thing...
You might find some Pizza & G&T’s in the office on Friday’s
How we operate:
We work hard and celebrate our success. Our challenges are vast and creativity is crucial. That means that we divide problems not tasks and emphasize autonomy in the approach. We strive towards a common goal and are all responsible for getting there. From accounting to design, we help each other achieve the best possible results by radical transparency and constant learning. We believe each one of us is a leader at this company and treat our peers accordingly.
If this feels like an environment you could see yourself in, we encourage you to apply and look forward to finding out more about you!
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.
Advanced Blockchain AG are looking for an experienced Back-End Developer to join our core development team. You’ll be taking on new and ongoing projects with industry leading clients looking to be the first to implement and benefit from blockchain technology.

What we offer:
An environment that embraces freedom and autonomy and values team
spirit and open communication. We encourage you to put forward your
thoughts and ideas.
An open plan office in the heart of Berlin.
The opportunity to contribute to cutting edge projects in a new and exciting
industry with the potential to positively reshape our world.
An international team of DLT pioneers from 12 different countries.
Flexible working hours.
Responsibilities:
Back-end development of our high-loaded web applications.
Working with our Blockchain API.
Rest API development.
Micro services development with Docker containerisation.
Working and maintaining different types of DB.
Collaboration and architecture planning with the team and CTO on a high-
performance back-end infrastructure.
Mentoring your team.
Main requirements:
5+ years in back-end development
Practical experience with MongoDB, MySQL, Redis, Postgres
Strong knowledge of Go and experience with C++, Python
At Synergist, we design software to make negotiating legal contracts fun and rewarding. We're making human negotiations machine-readable, creating big data sets of negotiation & behavioural data and extending our reach by integrating with third-party platforms. If we do our job right, our users feel empowered to negotiate contracts and get sh*t done really quickly.
Our team has spent 2 years (and a lot of love) crafting a beautifully simple solution to a complex and boring problem: contracts. 
Therefore we are looking for a backend focused PHP Software Engineer (m/f) who loves to solve complex problems, shares knowledge, takes responsibility and makes pragmatic decisions. As a Senior Software Engineer, you will collaborate with our small and talented team of engineers (PHP, React.js, Go and Infrastructure Engineers) to develop our contract negotiations platform with an eye towards efficiency and scalability. You will focus on the server-side implementation of our business logic, which manages many parts of our system.
What we are looking for:
7+ years of PHP backend development using Symfony/Laravel or similar framework
2+ years of experience with Go or a solid Computer Science background and a desire to learn new stacks
Strong MySQL and database design skills
An understanding of how design decisions affect scalability, storage requirements, and the like
Basic Linux skills
Fluent in spoken and written English
Having one or more of the following is not required but nice to have:
Experience working on a enterprise software at scale
Experience with Go, Docker, AWS, Redis, Terraform
What we offer:
Work with some cutting-edge technologies that are new in the market
A small international team with different skill sets and backgrounds.
Engineering culture: more then a half of the company works in technical positions. Engineers contribute to making product decisions
Bright and spacious office easily accessible by public transportation
Flexible working hours and independent work structure
Choose your equipment
In summary:Â


If you'd like to be part of building an enterprise software company from scratch and responsible for shaping the world's first automated negotiation bot with a bunch of cool people, then get in touch.
Backend Engineer, Search SoundCloud Berlin, Germany €58,000 to €110,000 a year
August 2018
14 Applicants This Week
More Than 6 Months Old
Job Description
What's next in music happens on SoundCloud first. As the worlds largest open audio platform, SoundCloud is powered by a connected community of creators, listeners and curators who share, discover and influence whats new, now and next in music and audio. We enrich people's lives through the shared love of sound and we are looking for a backend engineer to join our Search Team in Berlin.
As backend engineers at SoundCloud, we build the infrastructure for products that music listeners and creators love. Our work often involves large-scale distributed systems, parallel computing, and data science. We actively improve our tools and processes to support collaboration and productivity. We cultivate an environment where we can all learn and grow. For more,read about engineering at SoundCloud.
You have solid backend engineering skills and are motivated to work in these areas. You have experience with operations in a large production environment. You're proactive and have experience collaborating closely with other teams. You enjoy crafting simple solutions to complex engineering problems and are able to communicate them. You're an independent thinker, but thrive in a tight-knit team. You're committed to the products you work on.
If this describes you, we'd love to chat.
Prior experience with microservices, building infrastructure automation and continuous delivery are all highly valued. Go is the main language we use, so you are either already proficient in it or excited to learn. Experience in technologies such as Elasticsearch, Spark, Kafka, and data processing pipelines is a plus.
Diversity at SoundCloud:
SoundCloud is for everyone. Diversity and open expression are fundamental to our organization; they help us build a social platform and global community where anyone can create, discover, and share sounds. We acknowledge the challenges in our industry, and strive to develop an inclusive culture where everyone can contribute.
Cloud Platform Engineer fortrabbit Berlin, Germany / Remote €59,000 to €72,000 a year
December 2021
1 Applicants This Week
More Than 6 Months Old
This job posting is no longer available
Job Description
This is not strictly a GoLang position, but we do have Go with our current tech stack and we want to extend on that.
We are looking for a skilled SysOps/DevOps Engineer and Linux admin. Help building and extending our hosting platform. Ensure the highest levels of availability, performance and security. Make a big impact by joining a small developer-centric team.
Your responsibilities
Strategic thinking: Shape future features
Development: Extend the platform
Maintenance: Keep the infra running (security updates & review)
Senior Golang Engineer OptioPay GmbH Remote (Europe) / Berlin, Germany €60,000 to €90,000 a year
May 2021
2 Applicants This Week
More Than 6 Months Old
Job Description
About the Company
OptioPay is working on an exciting greenfields customer facing product. We need you to build it with us and to help us go live later this year. It’s an exciting time to join the team, as you will be working on what will become a game changing experience for customers everywhere. Openbanking data plays a big role in our future, and we are very excited to work with you to ensure that customers everywhere are finally rewarded financially for the data that they generate in their day to day lives. Help us create an openbanking revolution!
What will you do
To architect, design, develop, deploy, evolve, and operate distributed systems in a DevOps way
To be an integral part of an empowered and self-organizing team
To actively collaborate with other engineers, product owners, domain experts and designers to deliver great outcomes
To pair with others and review work, sharing knowledge and increasing quality across the board
To scale our reach by integrating our platform with more banks, PSPs, insurance companies and other financial systems
To champion continuous improvement of technology and the ways we work
What are we expecting from you
You have at least 5 years of professional experience as a Software Engineer
You can build and debug reliable, high availability, secure and performant distributed services in Golang
You care about quality and know when and how to ship code safely
You have a solid understanding of system design, data structures, and algorithms
You are experienced with deploying and operating services on Linux
You can reason and drive technical decisions
You love to experiment and use data to drive decision-making
You get inspired, think of new ideas and like to share them with others
Why OptioPay
Talented team of 60 people from 20 different countries