Aleksandar Velichkovikj
Senior Flutter & Next.js Developer
Berlin, Germany · al.velichkovikj@gmail.com
Remote-first. Based in Berlin, available on-site in the Berlin area. Authorised to work in Germany.

SUMMARY
Self-taught senior software developer with six-plus years building and shipping production mobile and web applications. Lead developer on Seasn, a financial planning app for Goethe-Universität Frankfurt with more than 10,000 users and winner of the German App Award 2026. Core expertise in Flutter and Dart for cross-platform iOS and Android, with Next.js and React for admin tooling, internal dashboards and web surfaces. Owns delivery end to end: architecture, state management, implementation, cross-device testing, app store release and direct communication with non-technical stakeholders.

TECHNICAL SKILLS
Mobile: Flutter, Dart, GetX state management, Navigation architecture, Local persistence, Push notifications, Performance profiling, Widget and integration testing.
Web: Next.js, React, TypeScript, JavaScript ES6, HTML, CSS, Server-side rendering, Static site generation, Progressive web apps, Internal dashboards, Admin panels.
Delivery: iOS and Android release management, Apple App Store and Google Play submission, Cross-device testing, Defect triage, Continuous integration basics, Git.
Practices: Requirements gathering, Stakeholder communication, Technical documentation, Remote and asynchronous collaboration, AI-assisted development workflows.

EXPERIENCE
Freelance Mobile and Web Developer — Self-employed, Berlin, Germany (2026 — Present)
  - Retained by Goethe-Universität Frankfurt under recurring quarterly contracts for continued ownership of the Seasn mobile application, covering feature delivery, release cycles and roadmap scoping agreed directly with the client.
  - Built and launched GRIND, a static Next.js progressive web app interval timer, solo from concept through to public launch on Reddit and Product Hunt.
  - Designed, developed and published consumer iOS applications to the Apple App Store independently.
  - Manage the full commercial side of the practice: client acquisition, scoping, contracts, invoicing and compliance.

Senior Flutter Developer — Goethe-Universität Frankfurt, House of Finance, Frankfurt, Germany (2022 — 2025)
  - Grew from frontend feature work to senior ownership of Seasn, a Flutter financial planning application shipped across iOS and Android, reaching more than 10,000 users and winning the German App Award 2026.
  - Owned navigation architecture and GetX state management, with a focus on stable navigation, performance profiling and release reliability.
  - Built a custom Next.js admin tool for video content, push notifications and application workflows, enabling non-technical staff to run content operations without developer involvement.
  - Ran cross-device testing and defect resolution ahead of each release; collaborated closely with design, research and product stakeholders.

Freelance Web Developer — Independent, Berlin, Germany (2021 — 2022)
  - Built small web projects for direct clients using React, JavaScript, HTML and CSS, focused on clean and responsive user interfaces.

SELECTED WORK
Seasn — Digitaler Finanzplaner. Flutter, Dart, GetX, iOS, Android. 10,000+ users; German App Award 2026.
GRIND — Interval timer. Next.js, TypeScript, PWA. Live. https://grind-timer.fit
Also independently designed and shipped consumer iOS applications to the Apple App Store.

BACKGROUND
I trained as a photographer before I wrote software — a diploma from ESRA, then several years working with images. I came to development self-taught, learning by shipping rather than by curriculum. Both still show up in how I work: I care how things look, and I would rather have something running than specified.

EDUCATION
Ironhack — Full-Stack Web Development Programme (2021)
Sprachschule ABW — German language studies to level B2 (2018 — 2020)
ESRA — Diploma of Education, Photography (2012 — 2014)

LANGUAGES
Macedonian: Native. Croatian: Native or bilingual. English: Full professional proficiency (C1). German: B2, conversational.