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Senior Software Engineer, Backend — Booking Platform & APIs
Senior backend engineer building a unified booking API for hotel experiences (day passes, cabanas, spas) in Rails/Postgres, ensuring correct inventory and safe transactions across partners.
Remote Senior Ruby on Rails Full-Stack Engineer
Build and maintain Ruby on Rails backends with AWS and Linux, write RSpec tests, and integrate systems for a logistics-focused contractor role.
Full-Stack Engineer (Rails & React)
Build and maintain full-stack web apps using Ruby on Rails for the backend and React for the frontend, collaborating with designers and product managers.
Senior Full Stack Web-Entwickler:in mit Schwerpunkt Frontend, 80-100% (w/d/m)
Senior full-stack developer building open-source tools (Leihs, Madek) for a Swiss art university, focusing on React/Tailwind frontends and Clojure services with DevOps and testing.
Senior Full Stack Web-Entwickler:in mit Schwerpunkt Frontend, 80-100%
Senior full-stack developer building open-source tools (Leihs, Madek) for a Swiss art university, focusing on React/Tailwind frontends and functional programming in Clojure.
Senior Software Engineer, iCasino
Senior engineer building low-latency GraphQL/gRPC APIs and real-money wagering flows for online casino platforms using Elixir, PostgreSQL, and Kubernetes.
Senior Software Engineer, iCasino
Build and scale GraphQL/gRPC APIs and low-latency services for online casino platforms, integrating game providers and handling real-money wagering flows in Elixir and distributed systems.
Senior Full-Stack Engineer (Ruby on Rails)
Build and maintain backend features for a high-traffic travel and marketplace platform using Ruby on Rails, MySQL, and integrations like Stripe and AWS.
Intermediate Backend Engineer
Build backend features for GitLab’s software supply chain security product in Ruby on Rails and Go, integrating security scanning results into merge request reports.
Senior Ruby on Rails Developer (AI-Augmented Engineering)
Build and scale high-performance Ruby on Rails backends while integrating AI tools to accelerate development, optimize PostgreSQL/Sidekiq, and mentor teams in clean architecture and testing.
Senior Software Engineer (Fullstack)
Build and lead full-stack web apps for patients and providers using Ruby on Rails, React, TypeScript, and modern testing tools in a healthcare-focused engineering team.
Senior Software Engineer (Product)
Build and scale a Rails-based SaaS platform that automates billing, CRM, and integrations for self-storage operators, using PostgreSQL, React, and Stripe.
Senior Software Engineer – Ruby on Rails / SaaS
Build and scale a SaaS fleet-tracking platform in Ruby on Rails, working across backend, APIs, and Angular frontend to support real-time GPS and AI dash-cam data.
Engineering Project Manager
Oversee engineering projects for an edtech platform used by 40,000+ students, tracking progress, testing features, and managing the bug pipeline to ensure quality and alignment across teams.
Senior Software Engineer (Fullstack)
Build and maintain patient and provider web apps using React/TypeScript on the frontend and Ruby on Rails on the backend to power a 24/7 virtual care platform serving millions of users.
Senior Backend Engineer, AI Engineering: Chat GitLab UK
Build core AI capabilities for GitLab Duo Chat, integrating LLM orchestration and multi-agent flows in Python/LangGraph while extending the GitLab Rails monolith.
Ruby on Rails Developer (Middle / Middle+)
Backend engineer builds and maintains high-load Ruby on Rails services, REST APIs, and integrations with PostgreSQL/PostGIS for an e-commerce-focused IT integrator.
Senior Ruby on Rails Backend Engineer — Remote Contract
Builds and maintains Ruby on Rails backend services, designs APIs, and writes tests with RSpec/Capybara/Cucumber for a remote contract role.