Senior Backend Developer Tech Lead (Russian and English speaker)

Were looking for a Senior Full-Stack Developer with a strong backend focus to lead one of the most impactful transitions in our companys history: consolidating 15 Shopify stores into a unified scalable appfirst architecture. This isnt a maintenance role. Youll shape technical direction work directly with product and business and have real ownership from day one. What Youll Work O

Design and build scalable backend systems on AWS Centralize user authentication and order management across multiple Shopify stores Integrate legacy systems into a unified app-based architecture Contribute to the Breeze mobile app ecosystem

Lead key initiatives including: o Multi-store order management consolidation o AI chatbot integration (SuperChat) o Dynamic bundle builder for multi-destination travel Leverage AI tools daily to accelerate development and problemsolving

Collaborate cross-functionally with product marketing and partner teams Tech Stack

Cloud: AWS eCommerce: Shopify (multi-store)

Data & Marketing: PostHog Klaviyo AI Tools: GitHub Copilot Claude Lovable

APIs: eSIM Go API and third-party integrations Engineering Culture Were AI-first by default not as a buzzword but as a daily practice. GitHub Copilot and Claude are part of our standard workflow. We move fast ship continuously and trust our engineers to make decisions.

What Were Looking For 5 years of full-stack development experience

Strong backend expertise (70% backend / 30% frontend split)

Proven ability to thrive in startup or high-growth environments

Solid understanding of scalable architectures and API design

Hands-on experience with AI-powered development tools

eCommerce or Shopify experience is a strong plus

Independent ownership-driven mindset you dont wait to be told what to do Soft Skills That Matter!

Comfortable navigating ambiguity and fast-changing priorities

Strong communicator across technical and non-technical teams

Collaborative low-ego high-impact Why Join Now Targeting 4050% business growth this year

Transitioning from acquisition-only to retention-driven growth Moving from website-first to app-first within 6 months

Small team direct impact on product and technical direction

Work with cutting-edge AI tools as a core part of your workflow Benefits & Perks:

Full-time permanent role based remotely

Competitive salary (40-50K)

Fast-growing international company

Work with top talent across the globe

Direct influence on product features and user experience

Ownership autonomy and professional growth A great supportive team to work with

The possibility to develop an innovative product in a new market within an international context

Private health insurance

500 euros trainee budget

English/Spanish classes Very cool projects with the latest and high-end technology

International experience

A comfortable office based in the city center of Valencia next to the metro stop

Full remote work

Nice social environment with a game room joint lunches drinks and regular parties