Skip to content
CV Rocket
Get started
How it worksThe enginePricingBlogContactSign in

Open nowPosted 18 days ago

Confirmed Backend Engineer - Train

BlaBlaCar6 open roles

Where
Paris, France
Work mode
Hybrid
Get the CV for this job

From $25 per CV, paid once. No subscription.

Your applicationOpen nowConfirmed Backend Engineer - TrainBlaBlaCar · Paris, France

  1. YouYes, apply to this one.

  2. CV RocketCV written for this posting.

  3. 25 readersRecruiter, hiring manager, skeptic. Round after round.

  4. CV RocketApplied on BlaBlaCar's own form.

The reply lands in your private mailbox

3×more interviews than doing it yourself with ChatGPT.

The clock on this job

Early applications get read.

13.7% of postings close within 7 days. Measured by our own scanner across the market. BlaBlaCar postings stay open a median of 39 days.

Share of postings closed within
  1. 2.2%1 day
  2. 4.7%3 days
  3. 13.7%7 days
  4. 22.1%14 days
  5. 37.8%30 days
  6. 59.1%60 days
This job: posted 18 days ago

BlaBlaCar median: 39 days open

The posting

About BlaBlaCar

BlaBlaCar is the world’s leading community-based travel app enabling 40 million active members to share rides across 41 countries each year. Its technology matches drivers with empty seats with passengers heading the same way, so they can share the cost of the trip.

BlaBlaCar’s mission is to be the go-to marketplace for shared travel, bringing carpooling, buses, and trains together in one place. Globally, the BlaBlaCar Group also includes Obilet, the leading online bus ticketing platform in Turkey. By partnering with over 20,000 operators, the Group offers a wide choice of affordable and sustainable transport solutions.

In 2025, the BlaBlaCar community connected 2.7 million meeting points worldwide and enabled 138 million connections between travelers. Drivers saved 568 million euros by carpooling, and all of the BlaBlaCar Group’s mobility services contributed to avoiding 4 million tonnes of CO2 emissions.

Your Mission

We are looking for a Software Engineer to join the Train Supply team. The mission is to scale the current BlaBlaCar train distribution in Europe supporting the expansion of the train supply to new markets and countries.

As a backend developer you will work on technical challenges and product feature development from early-stage conception, to development, testing strategy, deployment, and monitoring of new releases.

BlaBlaCar’s Train GDS stack is a scalable micro service architecture in spring boot 3 started in 2022. It uses REST API to communicate with other backends services in BlaBlaCar and with the suppliers.

You will be reporting to Solene, the Engineering Manager of the team, and working with a team of 3 other backend engineers. You will collaborate closely with several engineering teams, data, QA product managers and business developers to build robust and scalable features.

Your responsibilities

  • Defining scalable solutions to overcome the technical challenges of Train Distribution
  • Enhancing, maintaining and monitoring the current BlaBlaCar train ecosystem.
  • Participating in the whole application lifecycle, meaning : initial discovery, design, development, tests strategy, deployment to production, monitoring, alerting and support
  • Interacting with people with different roles, backgrounds and culture, and share your technical expertise with a mix of technical, product and business experts.
  • Take the lead on complex projects involving multiple teams from BlaBlaCar in different pillars and external actors.
  • Cultivate a continuous learning mindset, testing and experimenting new patterns, contributing to elevate the train team engineering standards.
  • Actively leverage AI tools in your daily workflows, explore innovative AI-driven engineering practices, to improve productivity and code quality.

Your qualifications

  • You have 3+ years of experience from companies with a strong engineering culture.
  • You are fluent in Java and knowledge of frameworks such as Spring Boot, JUnit and Mockito.
  • You have hands-on experience with Git, Docker, Kubernetes, and monitoring solutions.
  • You know what a service oriented architecture looks like, and you can determine when to apply a given architectural pattern.
  • You understand when and how to do a tradeoff between fast iterations and delivery quality.
  • You have excellent communication skills, you’re humble, and you are a team player.
  • Fluency in English.
  • Nice to have : you have strong knowledge of train distribution or of a similar environment with the same technical challenges.

What we have to offer

Interested in joining the ride?

BlaBlaCar is an equal opportunity employer. We celebrate diversity and are committed to creating an inclusive environment for all employees.

From $25, paid onceGet the CV for this job

What happens when you press

One press. We do the rest.

  1. A CV for this posting

    Written against BlaBlaCar's own wording, from every piece of relevant proof in your profile.

  2. 25 readers review it

    Recruiter, hiring manager, skeptic and more read every draft, round after round. You get the best round.

    The review screen in CV Rocket: how each CV was read, round by round.

  3. We apply on BlaBlaCar's form

    Our application engine gets through the hardest forms there are. Where a question needs you, AI suggests the best answer. Don't want us applying from our IP addresses? Use our Chrome extension: we apply straight from your own browser.

    An application in CV Rocket: every answer filled in on the employer's form.

  4. Every reply, sorted

    BlaBlaCar's answer lands in your private mailbox, and we classify it on arrival: interview, question, rejection.

    The CV Rocket inbox: each employer reply classified as an interview, an action or a rejection.

  5. Reply with AI

    AI helps you write the email, checks it and sends it. We show you whether the recruiter read it.

  6. The interview in your calendar

    Full integration with your calendar. The invitation goes straight in.

    An interview invitation in the CV Rocket inbox, added to the candidate's calendar.
Get the CV for this job

From $25 per CV, paid once. No subscription.

Why it works

3×

more interviews than doing it yourself with ChatGPT.

ChatGPT writes a CV and never learns what happened to it. We see every reply. For each CV we know:

  • How it was written, and how the review scored it
  • When we applied, and how long after the posting went up
  • Which posting, which company, which city
  • Who got the interview, and who heard nothing

That is how we know which CVs get called.

Get the CV for this job

From $25 per CV, paid once. No subscription.

The numbers game

More applications. More interviews.

Every application goes out with its own CV, written for that posting and paid once. Send enough of them and the law of large numbers finds you the job.

Get the CV for this job
By hand5–10
With CV Rocket100
applications a day

Nearby

Live postings like this one

Same employer first, then the same role elsewhere.

Before you press

Straight answers

Get the CV for this job

From $25 per CV, paid once. No subscription.

What if my background isn't good enough?

We make the most of the background you have. The CV uses every piece of relevant proof your profile holds, and one of the 25 readers reads your whole profile and flags what the CV left out.

Do you really apply for me?

Yes, on the employer's own form, the hardest ones included. Where a question needs you, you answer it right there and AI suggests the best answer. Don't want us applying from our IP addresses? Use our Chrome extension: we apply straight from your own browser.

Is it a subscription?

No. You pay once per CV, from $25. Every application goes out with its own CV, written for that posting.

One job. One CV.
Paid once.

Pick the posting you want. We write for it, apply for you and catch the reply.

Get the CV for this job

From $25 per CV, paid once. No subscription.