SeQura

Senior Software Engineer – ShopperApp

SeQura

full-time

Posted on:

Location Type: Remote

Location: Spain

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Job Level

Senior

Tech Stack

ElixirGraphQLJavaJavaScriptKotlinPHPPythonReactReduxRubyRuby on RailsTypeScriptWebpack

About the role

  • Build, evolve, and own product features end to end — from UI and user flows to backend logic and integrations.
  • Start from real problems, not predefined solutions.
  • Take responsibility for what you ship: quality, performance, reliability, observability, and maintainability.
  • Collaborate closely with design and product to shape solutions, make trade-offs, and deliver simple, effective experiences.
  • Use data, user feedback, and experimentation to inform decisions and iterate quickly.
  • Improve existing systems: fix what breaks, refactor what no longer serves, and deprecate what doesn’t create value.
  • Contribute to a shared platform mindset, building solutions that can scale across teams, products, or regions when needed.

Requirements

  • Senior-level experience (5+ years) building and running production software.
  • Comfortable working across frontend and backend, with strong experience in at least one and the curiosity and ability to operate in the other.
  • Backend experience with Ruby on Rails or strong motivation and ability to work with it (experience with JavaScript, Elixir, Kotlin, Java, PHP, or Python is highly valued).
  • Frontend experience with modern JavaScript (ES6+), React, and TypeScript.
  • Solid engineering fundamentals: OOP, clean code, test-driven development, and pragmatic use of agile practices.
  • Experience working with state management, build tools, and APIs (e.g. Redux, Webpack, GraphQL).
  • Product mindset: you care about users, understand trade-offs, and think in terms of outcomes rather than tasks.
  • Ownership mentality: you feel responsible for the long-term health, quality, and performance of what you build.
  • Ability to form and communicate opinions, backed by data, user insight, or experience.
  • Comfortable working in English in a distributed, cross-functional environment.
  • Curiosity and willingness to learn — especially in fast-evolving areas like AI, developer tooling, and automation.
Benefits
  • 23 vacation days + 2 days of free disposal per year.
  • Flexible compensation plan for transportation, restaurants, and kindergarten with Cobee.
  • Health insurance discounts with Sanitas and DKV.
  • Flexible working hours.
  • A personal budget for professional development.
  • Office workshops and meet-ups to encourage community participation and career growth.
  • Hybrid or remote work.
  • Wellness Program covering various areas with customizable activities.
Applicant Tracking System Keywords

Tip: use these terms in your resume and cover letter to boost ATS matches.

Hard Skills & Tools
Ruby on RailsJavaScriptElixirKotlinJavaPHPPythonReactTypeScriptOOP
Soft Skills
ownership mentalityproduct mindsetcollaborationcommunicationcuriosityresponsibilitydata-driven decision makinguser empathyproblem-solvingadaptability