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Senior Network Engineer - Devops 🔥


Back Market is the #1 marketplace for refurbished electronic devices in Europe and in the US, leading the way in a shift towards a circular economy, freeing the planet from electronic waste. We are proud to sabotage ‘new’ by connecting highly certified professionals to consumers who are looking for a more affordable, reliable and an ecological alternative to purchasing brand new products.  

Back Market is undergoing meteoric growth and has raised over 434M€ already! We have the objective of reaching 650 Back Makers (or Saboteurs) by the end of 2021! We are thrilled to have an inclusive, fulfilling and caring work environment in all our offices (Paris, Bordeaux, New-York, Prague and Berlin). This is an opportunity for you to join a talented, humble and passionate team at the heart of innovation : the Bureau Of Technology [1]

Be a part of the movement. Join the refurb revolution.

The

Infrastructure

team is made of 6 people based in Paris but also in other cities in France that come from various horizons and have diverse skills and backgrounds. We provide a robust and scalable infrastructure to host services developed by the Bureau of Technology, and monitor to ensure system health. We strive to always improve the platform stability, performance and security, and to provide the best developer experience while keeping costs under control.

As a

Senior Network Engineer

 you will be in charge of designing and operating the network used by the cloud infrastructure that support Back Market websites in

Europe, America and Asia

. You’ll be using Infrastructure as Code tools like

TerraForm

to implement it, and aim to provide resilience and elasticity to the

Kubernetes

clusters running in the

AWS/GCP clouds

. Part of the Platform Tribe, the infrastructure team works closely with the developers to provide tools and processes they need to build and run new features while promoting the

DevOps

culture, like Continuous Deployment. You’ll also help developers tackle their challenges by providing best-in-class architecture.

Your work will be to build and operate the best-in-class

network topology

for our Kubernetes clusters, allowing it to scale with the business. This includes among other things

VPC

configuration and peering,

VPN

,

CNI

,

Ingress

,

Service Mesh

, and

API Gateway

implementation/operation. You’ll help us with the challenges we’re facing related to our

multi-accounts

,

multi-providers

architecture that is available across

multiple continents

. You’ll for instance work with our DBA team to help build a

geo-distributed database

.

Security

will also be one of your critical concerns.

Your

deep knowledge of the HTTP Protocol

will allow you to optimize the requests made to our website to provide the best experience possible to our customers and merchants, by configuring the

HTTP cache

system we use from CloudFlare to achieve the

highest hit/cache ratio

with a intelligent invalidation system preventing unnecessary requests to reach our infrastructure while enabling SEO to crawl as many pages as possible each time.

You’ll help teams leverage

CDN,

following best-practices you intend to define with our architects and share them with developers, making the experience on our websites the most swift and frictionless possible for all our customers, mobile or not, in current and future markets.

Among other things you’ll be able to lead or to be part of working groups to think, compare, test, propose, decide, implement and run new projects that are part of the roadmap we define together for each quarter. We are looking for people

passionate about technology

, but who also aim to

make the best choices based on the business needs

they intend to cover. We strongly believe that many people can build complex solutions, but we’d rather build solutions that are as appropriate and simple as possible: therefore deliverable, reliable and maintainable. We can always add more complexity later on if we need to.

You’ll do your best to

automate

what can be, provide

documentation and training

to developers, and proposing any enhancement you deem relevant. You’ll be encouraged to take a step backwards and think about the global picture, and communicate with others to

share your ideas

, as we value everyone’s.

You’ll also take part in

on-call rotations

to ensure the websites are running as expected, and report incidents to our incident tracking to prevent them from becoming problems.

Your profile:

    • At

      least a 5 years experience in an Infrastructure or Network Engineer position.

    • Strong understanding of

      DevOps

      principles
    • Expert on OSI model all the way down, and you can operate fluently in level 2-3, 4 and 7 indistinguishably
    • Able to build fast and secure architecture
    • You have a successful experience in

      Cloud

      infrastructure, and

      container orchestrators:

      Kubernetes is a plus
    • Ingress Controller

      ,

      Service Mesh

      and

      API Gateway

      are components that you’ll handle or work with
    • Understanding of

      HTTP protocol

      and you can help developers design the fastest applications using

      CDN

      and

      HTTP Caching

    • You’re

      modest

      and value cordial debates over trying to “win”
    • Always

      learning

      from others
    • You are

      autonomous

      in a way that allow you to drive a tech topic until its realization
    • And you like to do this

      as a team

      , while

      communicating

      about it regularly
    • Willingness to be involved in the

      run

      and

      on-call

      with a "whatever it takes" attitude
    • You like

      infrastructure

      and design it for the

      success of the business

    • You make sure to always include

      security

      from the ground up
    • You have an

      interest in programming

      and especially Go, and are open to other technologies
    • You aim to always stay up to date and make sure to read on a regular basis tech news
    • Interest in a challenging technical environment: 

      AWS, GCP, Kubernetes, Terraform, Terragrunt, GoLang, Django, Flask, DataDog, Spinnaker, Cloudflare, Docker, etc

    • Great verbal and written

      communication

      skills, in

      English

Recruitment process :

* Call with our engineering recruiter

* Technical video interview with tech team, cross-functional

* Video interview with Hiring Manager + another leader in Engineering

* Video interview with Head of Platform

* Interview with Thibaud our CEO and Co-founder

WHY SHOULD YOU JOIN US ?

• A meaningful job: through hard work, you will help avoid thousands of tons of electronic waste and fight against planned obsolescence. It counts!

• An attractive salary, equity, multiple benefits (meal tickets, health insurance, etc...), parental benefits, remote-friendly, relocation package, internal events, etc… 

• Technical challenges all day every day: you will have the freedom to innovate and adopt new ideas!

• Work with passionate experts who will share their knowledge and help you develop and grow! (Backademy, technical guilds, Meet-up & Conference) 

• Grow your career with a flexible career path, BackMarket can help you evolve!

• A booming scale-up: our environment is rapidly growing in Europe, the USA and soon in Asia!

• A lot of fun: you will have the opportunity to work in a fast-paced, open-minded and friendly environment.

BackMarket is an Equal Opportunity Employer for any minority, disability, gender identity or sexual orientation.


  1. https://medium.com/back-market-engineering

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