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Urgent! Senior Back-End JS Engineer Job Opening In Nantes – Now Hiring CobbleWeb

Senior Back End JS Engineer



Job description

This position is 100% remote.

What are we looking for?
  • Purpose-Driven: You understand how your work impacts end-users and business goals.

    You have a result-oriented builder’s mindset and are always curious to learn more. 
  • Complex Problem Solver: You thrive on managing complexity and are adept at designing user-centric solutions that balance technical and business needs. 
  • Passionate & Committed: You take pride in your work and view it as more than just a job.  You are motivated to contribute to our mission: to democratise the development of online marketplaces like Amazon, Airbnb and Uber.
  • Effective Communicator & Team Player: You have strong communication skills, give and receive feedback well, and collaborate effectively within cross-functional teams. 

Why CobbleWeb? 
  • Professional Growth: Growth at CobbleWeb is non-negotiable.

    Work on diverse and challenging that will push your skills to new heights.

    Be part of a rapidly-growing team that values your input and encourages continuous learning.
  • Purpose-Driven Process: Our structured approach to product development is rooted in Agile principles and Lean methodology.

    Every project phase is well-planned, starting with an , which ensures clarity and productivity. 
  • Inclusive Culture: Join a diverse, multicultural team where every opinion is valued.

    Collaborate across disciplines to deliver exceptional solutions.

But don’t take our word for it.

Check out our and the stats don’t lie either: 
  • 4.5* employee rating on Glassdoor.
  • 3.5 years average employee tenure.
  • 5* client rating on Clutch.
  • 30+ marketplaces built since 2012.

Notable exits and incredible growth stories:
  • , a parking space app, acquired by a leading Dutch parking operator.
  • , an award-winning neobank & customer loyalty network, acquired by European fuel conglomerate, AVIA.
  • , an early-stage event ticket marketplace, already generates millions of euros in revenue.
  • , an innovative property management platform, has expanded to the UK, UAE, Spain, France, Ireland, Australia and South Africa.

The online marketplace model is taking over the world:
  • $3.5 trillion: global B2C marketplace sales (2023) .
  • 67%: marketplaces’ share of global ecommerce .
  • 310 million: active users on Amazon.

    If they were citizens, it would be the world’s 4th largest country! 

Massive opportunities for growth:
  • The B2B ecommerce market is four times the size of B2C ecommerce, with only a fraction currently served by marketplace platforms.
  • Other growth areas include niche verticals, hyper-localisation, and service marketplaces.
  • Third-party integrations such as fintech, SaaS, and procurement tools are supercharging marketplaces and also driving growth.
  • Marketplaces are early adopters of advanced technology such as AI, ML, and IoT, driving both innovation and growth.

Job requirements:
  • NodeJS frameworks, e.g. Nest or Express (3+ years experience).
  • MySQL and PostgreSQL expert (3+ years experience).
  • REST APIs.
  • Docker (local and production environments).
  • Strong understanding and proven implementation of Agile methodologies.
  • Proven application of Test Driven Development within a Continuous Integration/Continuous Delivery environment.
  • Experience with test automation.
  • RabbitMQ, Redis, AWS, or ElasticSearch experience is a plus.


Required Skill Profession

Computer Occupations



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