Senior Full Stack Developer

3 days ago

Bucharest, Bucureşti, Romania Phonetastic GSM Romania Full time 30,000 - 60,000 per year

Phonetastic GSM, one of the leading B2B distributors of IT&C products in Romania, with partners across more than 35 countries, is looking for a
Senior Full Stack Developer
with proven experience in
BigCommerce
to take
full technical ownership
of our B2B platform.

Our B2B platform is already live and functional (developed in collaboration with an external provider on BigCommerce), but we are now ready to move towards
internal autonomy
and a
long-term technical strategy
.

This role involves
leading the technical development
of the platform, optimizing its performance, and creating new features tailored to the corporate environment.

Key Responsibilities

  • Analyze the current BigCommerce architecture and identify optimal development solutions;
  • Manage and optimize integrations with
    ERP (Senior)
    , CRM systems, and connected marketplaces;
  • Develop new B2B functionalities (differentiated pricing, recurring orders, approval flows, etc.);
  • Ensure ongoing maintenance, performance, stability, and SEO optimization;
  • Build a technical roadmap aimed at reducing dependency on external developers;
  • Collaborate directly with management and the commercial team to prioritize tasks and translate business needs into technical solutions.

Requirements

  • At least
    5 years of full-stack web development experience
    ;
  • Strong hands-on experience with
    BigCommerce
    (Stencil, API, Headless, Webhooks);
  • Solid knowledge of
    JavaScript (React / Vue), HTML5, CSS3,
    ;
  • Experience with
    REST/GraphQL APIs
    , Git, and databases;
  • Deep understanding of
    B2B workflows
    and e-commerce architecture;
  • Ability to work independently, think analytically, and deliver results efficiently.

What We Offer

  • Part-time collaboration
    under a
    service contract
    ;
  • Full technical autonomy
    in decision-making;
  • Direct involvement in a strategic project at the core of the company;
  • Transparent and open collaboration with the management board;
  • Opportunity to build a sustainable internal IT infrastructure for the future.

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