Mobile Developer

Integral Solutions - Data & AI; Lisboa; Híbrido; EUR 40 000 - 60 000; Tempo integral

Resumo da oferta

Integral Solutions - Data & AI is seeking a talented Mobile Developer to join their dynamic team in Lisboa. You will work on cutting-edge fintech products that are used by millions daily. The ideal candidate should have strong full-stack experience, particularly in mobile, and a passion for developing scalable solutions.

Your responsibilities include designing and maintaining mobile systems, collaborating with cross-functional teams, and ensuring high code quality. The position offers a flexible work environment, with options for remote or hybrid work.

Qualificações

• 5+ years of software development experience.
• Strong full-stack experience with a focus on mobile development.
• Hands-on experience with Kotlin Multiplatform (KMP).

Responsabilidades

• Design, build, and maintain complex mobile systems at scale.
• Develop fintech products with end-to-end ownership.
• Lead and deliver full-stack solutions from concept to production.

Conhecimentos

Software development experience

Full-stack development

Mobile development

Kotlin Multiplatform

Client-side architecture

Spring Framework

Distributed systems

Microservices architecture

Kafka

REST APIs

Docker

Kubernetes

CI/CD processes

Descrição da oferta de emprego

About The Company/project

We are looking for a talented and passionate Fullstack Mobile Developer to join our team and work on cutting‑edge products in a dynamic and innovative environment.

Job title: Mobile Developer

Location: Lisboa/Portugal

Work mode: Remote OR Hybrid

Type of cooperation: B2B contract

Product Overview

This is a large‑scale fintech product operating as a mobile wallet platform, used daily by millions of users for real‑time payments. It enables instant peer‑to‑peer transfers, online payments, and seamless integrations with merchants, acting as a core payment layer within a highly digitalised market (similar in concept to solutions like PayPal or Venmo). From a technical perspective, it’s a high‑traffic, real‑world system focused on performance, scalability, and availability – combining modern backend architectures, APIs, and mobile‑first design.

Responsibilities

• Design, build, and maintain complex mobile systems at scale, integrating advanced technologies
• Develop advanced fintech products with end‑to‑end ownership and operational responsibility
• Lead and deliver full‑stack solutions from concept to production
• Collaborate closely with cross‑functional teams to continuously improve the product
• Design and implement scalable and robust software architectures
• Ensure high code quality, performance, and system reliability

You Are An Ideal Candidate If You Have

• 5+ years of software development experience
• Strong full‑stack experience with a significant focus on mobile
• Hands‑on experience with Kotlin Multiplatform (KMP)
• Deep understanding of client‑side architecture and Clean Architecture
• Experience with Spring Framework and Spring Boot
• Strong understanding of distributed systems and microservices architecture
• Experience working with Kafka, REST APIs, and event‑driven architectures
• Experience with Docker, Kubernetes, and CI/CD processes

Nice To Have

• Familiarity with AWS – an advantage
• Strong communication and teamwork skills
• Ability to thrive in a fast‑paced, dynamic environment
• Proactive, “Can-Do” attitude
• Strong problem‑solving and system‑thinking abilities