Sr. Backend Engineer

We're looking for a Backend Engineer to join our product team and help build the core of the Insense platform. You'll work on meaningful technical challenges, build features used by thousands of customers, and collaborate with Product, Design, and Engineering to create scalable, reliable solutions.

📍You must be located within CET ±2 hours

⏰ This is a full time role with a flexible schedule, you must be available every working day between 9 am and 12 pm EST.

Who we are looking for:

Required:

• 5+ years of backend engineering experience

• Strong written and verbal English (C1+)

• Proficiency in Ruby; experience with functional programming patterns is a strong plus

• Advanced SQL / PostgreSQL knowledge

• Experience with GraphQL API development

• Comfortable with DevOps concepts - deployments, Kubernetes, GCP

• AI-native. you actively use AI tools (Claude, Cursor etc.) in daily development, not as a novelty but as a core part of how you work

• Product-minded, proactive, and able to work across cultures

• Experience with Roda, Sequel, or dry-rb is a strong plus

• Background in e-commerce, creator economy, or marketplace products is a strong plus

Our stack

• Ruby + Roda + dry-rb ecosystem (dry-transaction, dry-monads, dry-validation)

• PostgreSQL + Sequel ORM

• GraphQL APIs (graphql-ruby, AnyCable subscriptions)

• Sidekiq Pro + Clockwork for background jobs

• Redis for caching, queues, and real-time features

• Kubernetes on GKE (Google Cloud Platform)

Responsibilities

• Development: Design, develop, and maintain our backend.

• API Management: Oversee the development and maintenance of our GraphQL API, ensuring it meets the needs of both frontend clients.

• Deployment & Operations: Manage deployments in a Kubernetes environment on Google Kubernetes Engine (GKE). Ensure the reliability and scalability of our applications.

• Collaboration: Work closely with designers, product managers, and QA to deliver high-quality features. Facilitate communication and collaboration within the team.

• Innovation: Proactively ideate and implement product improvements based on business and user needs.

• Cultural Sensitivity: Foster an inclusive work environment, effectively collaborating with team members from diverse cultural backgrounds.

This is a fully remote contractor role open to candidates based within the EMEA time zone. Compensation is paid in USD. Kindly select the "Worldwide" option if your location is not listed.

Please note that we use a third-party payment provider that does not operate in the following locations: Afghanistan, Belarus, Crimea (Ukraine), Cuba, Democratic Republic of Congo, Donetsk People's Republic (Ukraine), Iran, Iraq, Kherson Oblast (Ukraine), Libya, Luhansk People's Republic (Ukraine), Myanmar, North Korea, Russia, Somalia, South Sudan, Sudan, Syria, Venezuela, Yemen, and Zaporizhzhia Oblast (Ukraine).