We are currently looking for a skilled Senior Golang Developer to join the backend team of our Shop Applications Unit.
The Shop Applications Unit constantly improves the App, Mobile Website and Desktop Website. These big-scale products are each visited by several million people every month. Our highly scalable API updates and delivers our product data for our shop frontends in real-time – in peak times with up to millions of requests per minute! In that case, it truly matters if an API call takes 200ms or 50ms to ensure the best shopping experience. The team constantly challenges itself to raise the bar of what is “state of the art” and to provide the fastest and most efficient solutions to upcoming projects.
Challenges the team will be working on in the next months:
Working on a new backend API with the goal to unify core business logic to significantly reduce complexity in our frontends
Hardening and optimization of the API for production use
Finding solutions for challenges we face as we grow
What you will do
Develop a gRPC API in Go that encapsulates core business logic in a simple to use API for our frontend developers
Improve scalability and technical performance of our API and its response times
Work on a high-scalable product in the AWS ecosystem
Draft architectural decisions together with our Tech Lead and explore new technologies
Have a direct impact on team processes by regular agile retrospectives
Exchange your knowledge with other developers and be part of our ABOUT YOU TECH community
Who you are
You have 5+ years of experience in building complex backend API’s
You are very proficient in Go development
You have good knowledge of Elasticsearch and indexing products
You have experience in working with relational databases (e.g. MySQL) and key-value stores (e.g. Redis)
You write well-structured, efficient and maintainable code and actively keep the quality of the codebase in check
You have excellent analytical and problem-solving skills and enjoy building scalable distributed systems
You are used to working in an English speaking & agile environment
Nice to have:
You have experience in the AWS Ecosystem (Cloud Formation, Terraform, ElastiCache, etc.), Bamboo
You have experience with gRPC or GraphQL
You are familiar with centralized logging, monitoring, and alerting solutions
You understand DevOps, Containerization and Cloud solutions
Benefits
Grow together with one of the fastest growing eCommerce companies in Europe
Flexible working times
40% discount on our online shop
Fresh fruits + drinks everywhere
Language courses (German & English)
Free sports courses & reduced price for gym membership
Subsidized public transportation ticket
Free choice of hardware and operating system (Mac, Windows, Linux) also for private usage
State-of-the-art tech stack running on AWS
Modern office in the city center of Hamburg
International working environment and English as company language
Company flats (subject to availability)
Agile work environment (MOVE) and cross-functional teams
Free access to Germany’s greatest developer conference code.talks
Company pension scheme
Free Laracasts and Egghead account
Help in relocation and VISA process
We are looking forward to receiving your application – preferably via our online application portal! Thus, we can ensure a faster process and for you it is very easy to upload your application documents.
Backend Golang Engineer Wallet Connect Remote / Berlin, Germany $85,000 to $100,000 a year
December 2021
2 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)
As a part of Amadeus, travel audience unit is the world’s leading data-driven travel advertising platform. travel audience harnesses the power of home-grown tech, combined with cutting-edge machine learning practices to connect the leading performance-oriented travel brands with the biggest network of publishers, reaching Billions of travellers globally.
Our aim is to optimize advertising across the entire traveller journey, identify and create new audiences, and increase our partners reach, relevance and booking volumes.
We are searching for a (Senior) Backend Engineer to join our team. You will be combining your passion for technology and have a direct impact on the lives of millions of travellers, while also helping travel audience in becoming the global leader in data-driven advertising for the entire travel industry.
**
What you'll do:**
You'll be part of the team responsible for design, development, maintenance and operation of the programmatic advertisement and ad delivery components of our system: a set of Go applications, some of them, soft real-time;
You'll design & implement new features, write unit and integration tests, tune monitoring and alerting;
You'll work closely with Data Scientists in experimentation and optimisation of the business logic, leveraging machine learning and mathematical models;
You'll actively contribute to improving quality & managing technical debt;
You'll have the opportunity to participate in managing the infrastructure, capacity planning & optimising costs;
You'll participate in architecture and design discussions, actively influencing the evolution of the architecture to meet new business requirements;
You'll always be on a quest to look for better tools and solutions that match the new requirements better.
Why join us?
As part of our team, you will work in a highly motivated environment, with equal opportunities, flat hierarchies and short decision-making processes. You’ll have a lot of freedom to contribute your own ideas and implement them. We offer you:
The opportunity to drive business growth and truly having an impact on the business;
The opportunity of taking an impactful role in a fast-paced industry where you handle new problems every day;
The opportunity to work on a system that already handles many thousands of requests per second (per instance) and processes terabytes of data per day - and you will have the opportunity to help to push it further;
The chance to experience working on a soft real-time system - designed to reliably respond in tens of milliseconds.
Requirements
About you:
You have gained significant experience with software development, writing idiomatic Go code, and are familiar with the tooling of the Go programming language;
You worked with at least 5 of these technologies: Kubernetes, Helm, Terraform, Google Cloud Platform or other cloud computing environments,Prometheus, Grafana, protobuf, gRPC, Kafka, Aerospike or other key-value or document databases, PostgreSQL or other SQL databases, microservice architecture;
Work experience in production environments with high-traffic and/or high uptimes (HA, 24/7), or strong proficiency with performance optimization it's a plus;
It's a big advantage if you are experienced with programmatic advertisement (eg. Google RTB or OpenRTB) or real-time/soft real-time environments;
You are a quick learner, you believe in continuous improvement and you are good at analytical problem solving;
You can communicate well and are a first-class team player;
You can speak, write and express yourself in English – our company’s working language – in a professional context.
We are awaiting your application and looking forward to starting our journey together!
Golang Engineer synergist.io GmbH Berlin, Germany €55,000 to €70,000 a year
March 2019
4 Applicants This Week
More Than 6 Months Old
Job Description
At Synergist, we've begun an ambitious project to to automate human negotiation.
We're building a foundation for algorithms to predict the best way for two people to reach agreement on legal contracts.. nothing like this hasn't been attempted before.Â
We make human negotiations machine-readable, create big data sets of behavioural data and use open APIs to integrate with third-party platforms. If we do our job right, our users feel empowered to negotiate contracts and get sh*t done really quickly.
We're now looking for a a backend focused Go Engineer who is comfortable building complex, server-side business logic and contributing to our extensible architecture built on RESTful APIs. Our solution runs on a modern stack which is deployed via CI/CD on Redis and stored in Docker containers running on AWS.
We have flexible working hours, no hierarchy and give you the autonomy you need to get sh*t done. We're a small team that iterate quickly, but also value who you are over how good you are... Our culture is our greatest asset and we try not to take ourselves too seriously ;)
What we are looking for:
5+ years of experience with any general purpose programming language (PHP, Java, Python); or a solid Computer Science background and a desire to learn new stacks
A desire to learn Golang
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
Nice to have:
Previous Golang experience
Experience working on a consumer product at scale
Experience with Docker, ECS and AWS
Familiar with at least one frontend framework (React, Ember, etc) - AngularJS is preferred
Familiarity with Redis, Docker and/or AWS
What we offer:
Work with cutting-edge technologies that are new in the market
A small international team with different skill sets, backgrounds and cooking abilities ;)
Engineering culture: 80% of our team works in technical positions and engineers contribute directly to product decisions
A bright and spacious office (central Berlin near Checkpoint Charlie) with huge kitchen for breakfast, pasta, snacks and drinks (all included)
Choose your laptop, screen and (mechanical!) keyboard
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 Developer LANXESS Cologne, Germany €45,000 to €80,000 a year
October 2018
3 Applicants This Week
More Than 6 Months Old
This job posting is no longer available
Job Description
Your mission
You'll be joining the team developing the web marketplace backend. We create the business logic both for the customer-facing frontend and for the "back-office" of the product. We work on all layers of the system from the database models to public APIs. An intrinsic part of your responsibilities would be helping us to make the right decisions since we strongly believe in team collaborative expertise, and eventually realizing and orchestrating these decisions throughout the complete product funnel.
Who are you
You are a seasoned backend engineer with at least 3 years of experience in software development (internships excluded), preferably confident with Python stack.
You have a startup mentality and have already worked in a startup-like environment before. You are able to work in a fast-paced mode using the iterative approach towards product development.
You like to look out of the box and to learn latest trends and best practices also outside of backend area in order to broaden your horizons and provide a better understanding of the engineering ecosystem.
You feel comfortable interacting with colleagues from other teams on a daily basis.
Languages: English (fluent), German (a plus)
Why work with us
You will have an opportunity to be at the frontline of an innovation in the industry that had almost experienced none through last decade.
You will work on modern tech stacks, and within a cross-functional group of developers, data scientists, and product people.
A friendly working environment located in the heart of Cologne and an ambitious team of individuals with unique backgrounds and expertise.
We have an open door work culture where ideas and initiatives are encouraged and appreciated.
We offer a unique combination of a startup flexibility with a stability of a corporate investor.
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.