Senior Software Engineer

Intro; Albacete; Presencial; EUR 90.000 - 130.000; Jornada completa

Descripción de la vacante

Intro is seeking a Senior Software Engineer to own backend services in Kotlin and shape the migration of the platform from PHP to Kotlin. You will work closely with product and other engineers while remaining hands-on with development and delivery.

The role focuses on strong backend engineering, cloud experience (AWS), and ownership within a small team to influence technical decisions and platform evolution.

Formación

• Senior backend engineer with hands-on Kotlin/Java experience.
• Experience migrating legacy PHP to Kotlin is a plus.
• Cloud technologies experience, ideally AWS.
• Proven ability to build scalable backend systems.
• Strong communication and collaboration skills.

Responsabilidades

• Own and deliver backend services and APIs.
• Collaborate with engineering and product teams on platform evolution.
• Migrate and modernise existing PHP platform to Kotlin.

Conocimientos

Backend development

Kotlin

Java

Cloud/AWS

Communication

Ownership

Collaborative

Herramientas

AWS

Descripción del empleo

Senior Software Engineer Role (Kotlin) You’ll join a close-knit engineering function of around 9 engineers, giving you plenty of ownership, visibility and the opportunity to make a meaningful impact on technical decisions and how the platform evolves. One of the key projects will involve modernising the existing technology platform and migrating from PHP to Kotlin. You’ll work closely with engineering and product while remaining firmly hands‑on with development and delivery.

What We’re Looking For

• Strong commercial experience with Java or Kotlin
• Strong backend software engineering experience
• Currently hands‑on with coding and comfortable working in a highly technical role
• Experience with cloud technologies, ideally AWS
• Experience building and maintaining modern, scalable backend applications
• Strong communication and collaboration skills
• Comfortable working within a smaller engineering team with significant ownership

Particularly Valuable Experience

• Experience within FinTech, banking, payments, lending, insurance or wider financial services would be a strong advantage.
• We’re also particularly interested in engineers who have worked on:

• Legacy modernisation or technology migration projects
• Migration into Java/Kotlin environments
• AWS and cloud-native architectures
• Smaller product engineering teams with end-to-end ownership
• Practical use of AI within software development

Location & Employment

This is a permanent position and candidates must be based in, or able to be permanently employed in: UK | Spain | Portugal | Italy | Poland

Please note that B2B and contract arrangements are not available for this position you will be employed through EOR (Employer of Record)

If you’re a Senior Software Engineer who wants to remain hands‑on while playing a key role in a major technology modernisation, we’d love to hear from you.