Petros Dhespollari

iOS Engineer

Salary / Daily rate

Athens, Greece

Freelance, open to permanent contract

Can come onsite

Skills

IOSSwiftClean ArchitectureMobile DevelopmentPHPNodeAngularDeep LearningAIData MiningTesting & QAKotlinCSSRubyFlutterC#scikit-learnJavaProduction EngineeringDartC++.NETRReact NativeObjective-CAndroidWeb3Machine LearningCEvent Driven ArchitectureSpring BootClean CodeElectronicsBootstrapTypescriptNextMATLABHTMLEmbedded SystemsData EngineeringFrontend DevelopmentData AnalysisTest DesignSoftware CraftsmanshipFullstack DevelopmentReactJavascriptTailwind CSS

Languages

AlbanianEnglishGreek

About me

Intro

I build iOS apps people actually enjoy using. Swift is my core, with SwiftUI and UIKit where they fit best. I focus on performance, clean architecture, and code that lasts. At Plum, I work on user-facing fintech features with real impact. I’ve also shipped apps across mobility and enterprise, and built products like PromptBar and imjaDNS. I like owning the full journey, from idea to release, making smart trade-offs along the way.

Links

Work experience

iOS Engineer

Plum

Jan 2026 - Present

10 months

London, UK

As an iOS Engineer at Plum Fintech, I work within the Engagement Team, owning and delivering high-impact, user-facing features across end-to-end flows, Stonefruit, and Plum’s core iOS application. I design and build scalable, resilient mobile experiences using SwiftUI and The Composable Architecture (TCA), contributing across the full lifecycle- from technical design and implementation to iteration and release. I partner closely with product, design, and backend stakeholders to ensure mobile solutions align with user needs, product strategy, and business objectives. Beyond my core team, I take an active leadership role across the iOS organization by supporting and mentoring other engineers, contributing to architectural alignment, reviewing complex implementations, and helping shape shared best practices. My focus is on raising the bar for code quality, consistency, and long-term maintainability across Plum’s iOS platform.

iOS Engineer

ebiscon

Jan 2025 - Present

1 year 10 months

Cologne, Germany

As an iOS Engineer at Plum Fintech, I work within the Engagement Team, owning and delivering high-impact, user-facing features across end-to-end flows, Stonefruit, and Plum’s core iOS application. I design and build scalable, resilient mobile experiences using SwiftUI and The Composable Architecture (TCA), contributing across the full lifecycle- from technical design and implementation to iteration and release. I partner closely with product, design, and backend stakeholders to ensure mobile solutions align with user needs, product strategy, and business objectives. Beyond my core team, I take an active leadership role across the iOS organization by supporting and mentoring other engineers, contributing to architectural alignment, reviewing complex implementations, and helping shape shared best practices. My focus is on raising the bar for code quality, consistency, and long-term maintainability across Plum’s iOS platform.

iOS Engineer

AppArtFreelance

Jun 2023 - Present

3 years 5 months

Chalandri, Athens Metropolitan Area, Greece · Hybrid

Started at AppArt focusing on building robust, efficient code for the My DEDDiE App using Swift and the latest iOS frameworks to deliver a smooth, reliable user experience. Over time, took on broader responsibilities in guiding development processes, mentoring engineers, and ensuring technical decisions aligned with best practices and long-term product goals. Key contributions: • Drove architectural decisions to keep the app performant, maintainable, and scalable. • Collaborated with cross-functional teams — including product managers, designers, and backend engineers - to turn requirements into technical specifications. • Designed and implemented new features, optimized performance through targeted refactoring, and resolved critical issues. • Ensured GDPR compliance and adherence to industry standards in a highly regulated environment. • Mentored developers and conducted detailed code reviews to uphold quality and consistency. Flagship Project - HEDNO Pioneers Green Energy Awareness Led the iOS implementation of a major sustainability feature enabling users to: • Track real-time renewable energy production from solar, wind, hydro, biomass, and other RES sources. • Select specific geographical areas and timeframes for analysis. • View carbon reduction metrics in an accessible, user-friendly interface. This update strengthened the My DEDDiE App’s role in promoting environmental awareness and digital innovation, making green energy data easily accessible to citizens across Greece.

Full-Stack Engineer

AP GlobalFreelance

Apr 2022 - Present

4 years 7 months

New York, NY, USA

At AP Global, a multimedia tech platform designed to support artists in brand building, monetization, and business management, I develop and maintain web applications to enhance the user experience for artists and collectors. I work with technologies including Angular, Node.js, and MongoDB to integrate e-commerce functionalities, improve platform performance, and implement immersive technologies such as AR/VR for artist exhibitions. This role allows me to contribute to a global platform that empowers artists through innovative digital solutions.

Professor Assisting Students/ Scholars

FreelanceFreelance

Jul 2021 - Present

5 years 4 months

Athens Metropolitan Area · Hybrid

Public Group

May 2022 - May 2023

1 year 1 month

Hybrid

Software Developer

Jun 2022 - May 2023

1 year

Hybrid

I am a software developer specializing in frontend development with a solid foundation in Angular basics and familiarity with modern web development tools like TypeScript, HTML5, CSS3, and JavaScript. Also, I have a solid understanding of RESTful APIs and other backend technologies. I am dedicated to producing high-quality code that meets technical requirements and user needs, and am eager to learn and grow in the frontend development space. My collaborative and team-oriented mindset makes me an asset to any project.

Web Content Creator

May 2022 - Jul 2022

3 months

Hybrid

I'm responsible for the creation of online content and the general supervision, upgrade and proper promotion of the products though company's site.

TSE

Nova

Nov 2021 - May 2022

7 months

Peania, Athens Metropolitan Area, Greece · Remote

Technical Support Engineer This job mostly does troubleshooting of internet connections and other related technical support.

CSR

Cosmote e-Value

Sep 2020 - Mar 2021

7 months

Kerameikos, Athens Metropolitan Area, Greece · Remote

Customer service representatives work directly with customers to provide assistance, resolve complaints and answer questions.


Education

University of West Attica

Integrated Master of Engineering, Engineering

2018 - 2023

5 years 3 months

Grade: 7.04

Activities and societies: The Polytechnic School of Engineering of the UNIWA offers a high level of education in the scientific fields of its departments through undergraduate, postgraduate and doctoral programs. It also cultivates basic and applied research through the research activities of its academic, technical and administrative staff, in the context of a wide network of national and international collaborations and programs involving the institutionalized Research Laboratories of the School and its departments.

The Department of Informatics and Computer Engineering aims to provide exceptional education to Engineers, fostering advanced knowledge, skills, and capabilities in Informatics and Computers through comprehensive undergraduate, postgraduate, and doctoral programs. It actively pursues groundbreaking research, collaborating with national and international institutions to contribute to the progress of science and technology. Aligning with esteemed organizations like ACM and IEEE CS, the curriculum ensures a robust foundation and critical awareness. At Level 7, students gain highly specialized knowledge and hone problem-solving expertise, enabling them to undertake innovative research and navigate complex, dynamic work contexts. Graduates emerge equipped to make profound contributions to professional knowledge, practice, and team leadership.

University of York

Master in Advanced Software Engineering, Engineering

2022 - 2023

1 year 1 month

Grade: 10

The University of York confers the Master in Advanced Software Engineering upon Dhespollari Petros for the successful culmination of the rigorous 500-hour PublicNEXT Graduate Program, undertaken from July 4, 2022, to May 30, 2023. This intensive program encompassed diverse modules including Java Programming, Spring Framework & Spring Boot, Spring Cloud & Microservices, Databases & SQL, Angular Development, and Software Testing Fundamentals. With a strong focus on practical learning through real-life case studies, hands-on practice, on-the-job training, and e-learning courses, Dhespollari Petros displayed exceptional dedication and aptitude in mastering these essential software engineering skills. This accomplishment signifies a comprehensive understanding of contemporary software development concepts, positioning Dhespollari Petros at the forefront of the dynamic technological landscape.

High School Mistrioteio

Diploma, Economics and Informatics

2015 - 2018

2 years 11 months

Grade: 19.3

I completed my high school education at Mistrioteio High School, specializing in Economics and Informatics from September 2015 to June 2018. This period provided a strong foundation in analytical thinking, problem-solving, and technical skills, shaping my interest in technology and software development. The curriculum offered insights into economics principles and informatics, fostering both logical reasoning and creativity. My dedication to academic excellence is reflected in my grade of 19.3, ranking me among the top students. During these years, I developed skills in teamwork, time management, and adaptability, preparing me for the challenges of higher education and professional environments. This experience laid the groundwork for my passion for engineering and informatics, inspiring me to pursue an Integrated Master of Engineering in Informatics and Computer Engineering and instilling in me the drive to continuously learn and excel in my field.

University of Michigan

Certificate C2 in English, English Language

2015 - 2016

1 year 1 month

Grade: C2

I hold a Certificate of Proficiency in English (C2) from the University of Michigan, demonstrating a mastery-level command of the English language. This certification, issued by the University of Cambridge Department of English Language Assessment, validates my advanced skills in reading, writing, speaking, and listening, as well as my ability to communicate effectively in complex academic and professional contexts. It reflects my dedication to achieving excellence in language learning and my ability to work in an international and multilingual environment.

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