Live Athens transit
Syrmos
Your next Athens train, instantly.
- Live metro, tram and suburban rail departures
- Offline-first, works underground
- iOS, Android and the web. Greek and English.
iOS Engineer
iOS Engineer in Athens. Shipping Plum's core iOS app with Swift, SwiftUI and The Composable Architecture. Building Syrmos for the Athens metro, tram and suburban rail, and Conservatio for cultural heritage conservators, across iOS, Android and the web. Open sourcing Kujto, a bilingual AI memory framework for codebases.
Featured products
Syrmos ships live Athens transit across iOS, Android and the web. Kujto Studio is the local memory layer for AI coding agents. Glint and Lidhra are two Rust and Tauri apps: a liquid-glass menu-bar Git client and a fast, private download manager. PromptBar keeps every major AI model one keystroke away in the Mac menu bar.
Live Athens transit
Your next Athens train, instantly.
Local memory for AI agents
Stop briefing your AI agent on the same codebase every day.
Git in your menu bar
A glint of Git, one click away.
Native download manager
Link what matters.
AI chat in your menu bar
Every AI model, one keystroke away.
Professional work
iOS Engineer
I own user-facing features end to end on Plum's core iOS app, from technical design to release and post-launch iteration, in SwiftUI and The Composable Architecture. The app helps more than 5 million customers manage their money, and I mentor and review across the iOS team.
iOS Engineer
At ebiscon I ship features for MBLTY, Tank & Rast's flagship EV-charging app serving millions of drivers across Germany. I build in UIKit and SwiftUI with MVVM and TCA, including App Clips and Apple Watch integration, and help shape the team's technical decisions.
Selected work
A wider set of shipped products spanning Apple-platform work, Kotlin Multiplatform apps and open-source tooling.
Creator & Developer
Cross-platform DNS configuration app for Apple devices. Manage custom DNS servers across iPhone, iPad and Mac, with speed tests and a live protection state.
iOS Engineer
Enterprise iOS app for HEIL GmbH, one of the ebiscon apps I worked on alongside MBLTY, POWR and LLG-Messe. I built features in UIKit and SwiftUI on an MVVM and TCA architecture, keeping the codebase clean and maintainable for a cross-functional team.
Lead iOS Engineer
Official app of HEDNO, Greece's electricity distribution operator. I led the iOS implementation of the Green Energy Awareness feature, giving citizens real-time renewable production and carbon-reduction metrics by area and timeframe, and grew from engineer to lead: architecture decisions, code reviews, mentoring and GDPR compliance.
Frontend Developer
Greece's leading electronics retailer. I supported and improved public.gr and public.cy in Angular 13+: fixed bugs, shipped CSS and UI enhancements and added structured data to product pages for richer search results.
Frontend Developer
Major European electronics retailer. On mediamarkt.gr I built regular-expression form validations, integrated partner reviews through backend communication and shipped new frontend features in Angular 13+.
Creator & Developer
Mental wellness iOS app developed as part of a Master's thesis. Award-winning project recognized at CoNeCo 2024.
About
I'm an iOS Engineer based in Athens. At Plum Fintech I work in the Engagement Team, owning user-facing features in the core iOS app with SwiftUI and The Composable Architecture, from system design through release and post-launch iteration. In parallel I design, build and ship products of my own across iOS, Android and the web. Syrmos delivers your next Athens train instantly: live metro, tram and suburban rail departures with offline schedules and zero tracking, built for daily commuters. Conservatio is a professional documentation platform for cultural heritage, used by conservators, museums, galleries, archaeological teams and heritage authorities to replace Word templates and scattered photos with structured condition reports, controlled vocabulary and branded PDF exports. Kujto is a versioned, bilingual open-source AI memory framework that keeps Swift conventions and iOS architecture decisions portable across Claude, Codex, Gemini, Copilot and Cursor. PromptBar and imjaDNS round out the personal stack on macOS and iPadOS. The thread is the same across all of them: taste for small, modular systems, an ownership mindset, and code that ages well.
Recommendations
A set of LinkedIn recommendations focused on delivery reliability, engineering judgment, communication, and team impact across product work.

Technology Consultant | CRM & Digital Solutions | 8x Salesforce Certified
January 29, 2026 · Worked with Petros on different teams
I had the pleasure to work with Petros during his time at Ebiscon. He brings strong technical expertise to the table, paired with a thoughtful approach to building reliable, user-focused iOS applications. Beyond his technical skills, Petros is proactive and always willing to step in to help, whether that means solving a tricky technical problem or supporting a teammate. His professionalism, empathy, and team-first mindset make him a valuable asset to any organization.

I had the opportunity to work with Petros for a full year on our iOS team, where we collaborated closely on several product features and architectural improvements. In our day-to-day work, he communicated openly, gave realistic estimations, and took responsibility for delivering his features reliably. I really appreciated how he used his knowledge to challenge assumptions in a constructive way and how his clear technical reasoning often helped us find better solutions. His structured approach and thoughtful code reviews genuinely strengthened our overall quality. Petros is not only a skilled and dependable iOS developer, but also someone I genuinely enjoyed working with, and I'm grateful that I gained a good friend along the way.

Backend .net developer @ ebiscon
November 7, 2025 · Worked with Petros on the same team
Petros is a capable iOS lead who manages teams with clarity and purpose. He combines strong technical skill with practical decision-making to keep projects on track.

I've worked with Petros in a number of challenging projects and I can say with certainty that he is among the best people I've worked with in my career. Petros can take initiative and break down complex problems into digestible chunks that he then implements while taking edge cases into account. He also coordinates efficiently with people from different backgrounds and suggests improvements to new and existing features. Apart from his technical prowess, Petros is a great person, easygoing, and has a great sense of humor. He would make a great addition to any team.

Senior Android Engineer at Scytales
December 23, 2024 · Worked with Petros on the same team
It has been a pleasure working with Petros, an engineer who is very passionate about his craft. Highly autonomous and self-driven, Petros is a dependable team member who makes collaboration seamless. His communication is clear and concise, ensuring effective exchanges within the team. Petros's curiosity and determination to understand how things work make him an invaluable problem solver who always digs deeper. Beyond his professional skills, his sense of humor and ability to engage in everyday conversations add a personal touch, making him fun to work with. I recommend Petros as a talented and well-rounded professional.

Technical Delivery Manager at Netcompany
December 13, 2024 · Managed Petros directly
As the director of the technical department of AppArt, I've had the opportunity to work with Petros and evaluate his crucial role in developing the iOS version of some of the company's most dominant mobile apps. Petros has shown that he is capable of delivering high-quality software, but has also shown precious communication skills as he managed to establish a very fruitful relationship with our customers. As a result, his contribution to every mobile app version we released was critical. As an added perk, I understand that Petros really loves the job that he is doing. His continuous interest in personal and open-source projects indicates a mindset that will certainly benefit every company he works for.
Resume
I build Apple-platform products that feel fast, clear and dependable, with a bias for small, well-named systems over clever ones. At Plum Fintech I work in the Engagement Team on Plum's core iOS app. In parallel I design, build and ship Syrmos (Athens transit), Conservatio (heritage documentation) and Kujto (open-source AI memory) across iOS, Android and the web.
Independent work
Fuel My Coding Journey!
As an experienced iOS Engineer passionate about crafting cutting-edge solution, your support means a lot as I embark on this exciting coding journey. By buying me a coffee, you're not just fueling my caffeine addiction, you're contributing to the development of innovative iOS & web applications.
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