GRGrzegorz Raciborski
@grzegorzraciborski
Senior iOS Developer with expertise in Swift and mobile architecture.
PolandWhat I'm looking for
I am a dedicated Senior iOS Developer with extensive experience in building high-quality mobile applications. Currently, I work at Sii Poland, where I have successfully developed and maintained key features for various applications, including payment processing and third-party integrations. My collaborative approach with designers and backend teams has allowed me to enhance user interfaces and deliver robust solutions.
Throughout my career, I have worked on significant projects such as the mObywatel app for the Polish government, where I implemented features that improved citizen engagement during the 2023 parliamentary elections. My technical expertise includes Swift, SwiftUI, and The Composable Architecture, and I pride myself on writing modular, well-tested code. I am passionate about leveraging technology to create impactful user experiences and continuously seek opportunities to grow and innovate in the mobile development space.
Experience
Work history, roles, and key accomplishments
Architect
Sii Poland
Mar 2023 - Present (2 years 7 months)
Developed and maintained key features such as payment processing, bus ticket sales, loyalty programs, and third-party integrations. Collaborated with designers to define and enhance the design system, and worked closely with the backend team to establish API contracts. Contributed to the Polish government citizen’s app mObywatel, delivering features like PESEL restriction and Central Registry of V
Senior iOS Developer
Revolut Business
Mar 2022 - Mar 2023 (1 year)
Developed and documented new features in a highly modularized and unit-tested codebase, including card requests, bulk member invitations, payment approvals, and scheduled payments. Utilized Swift, AutoMockable, and InjectionIII for hot reloading.
Senior iOS Developer
ServiceTitan
Apr 2021 - Feb 2022 (10 months)
Developed an inventory application for a Home and Business Service Management system. Leveraged SwiftUI, Combine, and The Composable Architecture for implementation.
Senior iOS Developer
Intive
Nov 2017 - Mar 2021 (3 years 4 months)
Developed an iOS client for Viacom's Noggin video streaming service and an iOS client for a private data and password manager. Also created an interactive product catalog and document management iOS app for a medical equipment producing company.
iOS Developer
Grape Up
May 2015 - Nov 2017 (2 years 6 months)
Developed the UI layer of Avaya Equinox, an enterprise integrated communication solution for iOS devices. Also took part in macOS app development.
C++ Developer
Tangram Care
Jan 2015 - May 2015 (4 months)
Developed C++ data processing software for a medical insurance company in the US. This involved creating robust solutions for handling complex medical insurance data.
Senior Windows Developer
Boost Poland
Aug 2013 - Jan 2015 (1 year 5 months)
Developed utility software for Windows and Linux platforms using C++ and Qt Framework. Focused on creating robust and efficient cross-platform solutions.
iOS Developer
QBurst
Mar 2013 - Jul 2013 (4 months)
Developed a public tender/auction solution client for iOS devices. Focused on creating a user-friendly and efficient mobile application.
Junior Mobile Developer
9bits
Jun 2012 - Nov 2012 (5 months)
Participated in creating mobile applications for major brands such as Nescafe and Leroy Merlin. Contributed to the development of various consumer-facing mobile solutions.
Education
Degrees, certifications, and relevant coursework
Bialystok University of Technology
MS in Computer Science, Computer Science
Focused on graphics and multimedia systems. Gained advanced knowledge in computer science principles.
Bialystok University of Technology
BS in Computer Science, Computer Science
Acquired foundational knowledge in computer science. Developed skills in various programming paradigms and software development.
Availability
Location
PolandAuthorized to work in
Social media
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