Full-Stack Mobile Engineer (iOS, Android & Spring Boot) (m/k)

Expected, iOS, Swift, UIKit, Kotlin, Android, Jetpack Compose, Spring Boot, PostgreSQL, Spring Security

Optional, AWS

About the project, We are looking for a Full-Stack Mobile Engineer to support the maintenance and incremental development of a production mobile solution covering native iOS, native Android, and Spring Boot backend services., The project requires a hands-on engineer who can work across the mobile ecosystem, troubleshoot production issues, deliver improvements, manage mobile application releases, and support the evolution of secure and reliable mobile applications., , Location: 100% Remote, ⏳ Engagement: Part-time (50% FTE)

This is how we work, in house, at the client's site

Your responsibilities, Maintain and enhance native mobile applications for iOS and Android, Investigate, troubleshoot, and resolve production issues, Implement minor feature enhancements and improvements, Ensure compatibility with new mobile operating system releases, Manage App Store and Google Play release processes, Support and maintain the Spring Boot backend, Participate in incident analysis, root cause investigations, and resolution activities, Collaborate with cross-functional engineering and delivery teams in an Enhance & Operate model

3+ years of commercial experience in iOS development using Swift and UIKit, 3+ years of commercial experience in Android development using Kotlin and Jetpack Compose, Strong understanding of native mobile application development across both platforms, Strong knowledge of UIKit, Storyboard-based applications, and Jetpack Compose, Experience with mobile platform security mechanisms, including iOS Keychain and Android KeyStore, Experience ensuring mobile application compatibility with new operating system releases, Hands-on experience managing mobile application releases end-to-end, Experience with App Store release processes, including certificates, provisioning profiles, TestFlight, and publication, Experience managing Google Play releases and application publishing processes, Familiarity with mobile CI/CD pipelines, release automation, and device compatibility testing, Experience working with existing Spring Boot applications (Java 17), Ability to analyze, debug, and modify existing backend services, Understanding of REST APIs and API integrations, Experience working with PostgreSQL, Familiarity with Spring Security, Practical knowledge of mobile application security best practices, Understanding of cryptographic key management and secure authentication mechanisms, Experience with RSA-based authentication, Knowledge of secure API communication patterns, Understanding of token lifecycle and session management, Experience working with production applications and resolving live issues, Experience participating in incident analysis, root cause investigations, and resolution activities, Ability to collaborate with cross-functional engineering and delivery teams in an Enhance & Operate model

Optional, Working knowledge of AWS services, including: EC2, RDS, S3, CloudWatch, WAF, Additional experience with security and authentication solutions

What we offer, Rate of 140–150 PLN/h net on B2B contract, 100% remote work, Flexible 50% FTE engagement (approximately 20 hours per week), No on-call duties and no work required outside standard business hours, Short 14-day invoice payment term, Access to additional benefits, including private healthcare and a cafeteria benefits platform (e.g. Multisport card, prepaid cards, and other lifestyle benefits), Dedicated support throughout the cooperation process

Benefits, sharing the costs of sports activities, private medical care, remote work opportunities, flexible working time, integration events

P&P Solutions Sp. z o.o., W P&P Solutions świadczymy usługi outsourcingowe i rekrutacyjne oraz wspieramy transformację cyfrową (poprzez m.in. wdrożenia usług chmurowych) dla klientów na całym świecie, zarówno dla szybko rozwijających się start-up’ów, największych software house’ów w Polsce, dużych firm produktowych, jak również wielu największych globalnych korporacji. Jesteśmy obecni niemal we wszystkich sektorach, ale przede wszystkim w IT, telekomunikacji, fintech, bankowości, i ubezpieczeniach, transporcie i logistyce, administracji oraz usługach publicznych., Nasi partnerzy to firmy zarówno polskie, jak i zagraniczne, więc przekrój i możliwości na zdobycie doświadczenia są naprawdę duże., , Opierając się na szerokim doświadczeniu i elastycznym podejściu do potrzeb Klienta budujemy swój wizerunek skutecznego doradcy i atrakcyjnego pracodawcy., W P&P Solutions działamy jako jeden Team, który wspólnie dąży do realizacji wyznaczonych przez siebie założeń. Wierzymy, że teamwork i wspólne działanie są podstawą do osiągania najlepszych rezultatów.