Arda Hadimioglu

Industrial engineer who builds software products.

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Summary

Industrial engineer, B.Sc. at Boğaziçi and M.Sc. at TUM, who builds software end to end. At Demirtag Consulting I digitalise Deutsche Telekom's internal contract processes, from the Angular frontend through Java services and Camunda workflows to SAP.

Next to that I build and run my own products: Niche Impromptu, a German speaking coach; Deklavis, AI review of customs documents; Gistleaf, an iOS notes app; and free logistics tools on ardahdmi.com. For each project I set up its own agent harness, with build, test and review layers. I do my best work close to the people who use what I ship.

Experience

  1. Software & Automation Engineer

    – Present

    Demirtag Consulting GmbH, Augsburg

    • Deutsche Telekom: End-to-end digitalisation of internal contract processes, such as partial and full terminations, that staff used to do by hand in SAP. One flow replaces 7 to 12 manual bookkeeping steps. In a pilot with about 50 to 60 Telekom employees.
    • Across the stack: Angular frontend, BFF, Java services, Camunda BPMN models and workers, SAP integration through OData, deployment on Kubernetes.
    • Allianz: Wrote and maintained more than 1,500 automated Playwright tests in Jenkins for the cloud application used by all Allianz policy sellers, plus a script that files Jira bug reports from test results. Other teams still reuse the suite.

    Stack Angular, Java, Camunda, SAP OData, Kubernetes, Playwright, Jenkins

  2. Full-stack Developer

    –

    MVST, Munich

    Built React and NestJS web applications for client projects and deployed them with Docker on Heroku, AWS and GCP.

  3. Founder

    –

    Ekseriyet, Istanbul

    Founded a data journalism site that turned public statistics into stories: two Python-driven data stories a week, more than 300,000 views.

  4. IT and Production Systems Intern

    –

    Fraunhofer IPK, Berlin

    Built an assembly line model for bus production and data pipelines in R.

Education

  1. M.Sc. Management and Technology

    Oct 2020 – Oct 2023

    Technical University of Munich

    Thesis “Blockchain-based content monetisation and business models of a decentralised creator economy”

  2. B.Sc. Industrial Engineering

    Sep 2014 – Jun 2019

    Boğaziçi University, Istanbul

    Thesis “Location optimization for electric vehicle charging stations in Istanbul”

Skills

Languages
TypeScript, JavaScript, Python, Java, SQL, Swift, R
Frontend
React, Angular, Next.js, Astro, SwiftUI
Backend & data
FastAPI, Node.js (NestJS), PostgreSQL, MongoDB, REST, GraphQL
AI and LLM
LLM APIs, Whisper, RAG, LangChain, Zod, MCP
Agentic engineering
Agent harnesses, orchestration, tool integration
Process automation
Camunda, n8n, SAP OData
Infrastructure & testing
Docker, Kubernetes, Coolify, Cloudflare, AWS, GCP, Playwright, Vitest, Jenkins

Certifications

  • AWS Certified AI Practitioner
  • ISTQB Certified Tester Foundation Level
  • Lean Six Sigma Yellow Belt
  • DeepLearning.AI specialisations in Deep Learning, TensorFlow and NLP

Award

  1. 2nd place and a USD 75,000 prize

    DFINITY Supernova Hackathon, 2022. Conshax, built in three weeks by a team of three, without AI assistance: I wrote the React frontend and the user logic in the Rust backend.

Languages

Turkish, native. English, C2. German, C1.

How I work

  • I build with Claude Code. Usually two coding agents run in parallel, orchestrated through Hermes, and a separate review agent checks GitHub and the live sites every 15 minutes. Some projects need a slower, more manual loop.
  • In client work I go through each business scenario before building, to find the edge cases early.

Products I built and run

  1. Niche Impromptu

    aipicka.com/niche-impromptu

    A speaking coach for German at B2-C1 that lets you rehearse a conversation before you have it.

    • You practise as a persona or draw a random topic, answer out loud, fix the transcript if needed, and get tutor notes on grammar, vocabulary, fillers and pace with a model answer.
    • Errors are tagged against a taxonomy of 30 German error codes. A weak point is promoted only after it recurs across attempts, and only from notes the tutor rated as reliable.
    • Every model call is metered for tokens, audio minutes and cost.

    Stack Next.js, Payload CMS, PostgreSQL, TypeScript, OpenAI Whisper and GPT-4o

    Want to try it? Email me for an invite.

  2. Deklavis

    portal.deklavis.com

    AI review of customs documents for customs consultants and import/export companies.

    • A reviewer uploads a case, OCR parses each document, and the backend checks the Declaration of Conformity against the invoice and the product label, with rules and a regulatory knowledge base behind each finding.
    • Each finding shows its evidence on the page, a severity and a suggested fix. A person makes the final decision, and every step is kept in an audit history.
    • I wrote the frontend and the backend and run the production setup.
    • The setup is a hardened VPS with Coolify, Cloudflare, Tailscale-only admin and CI on both repos.

    Stack Python, FastAPI, React, TypeScript, Supabase, PostgreSQL, OpenAI, RAG, Playwright

  3. Gistleaf

    App Store

    An iOS app that turns spoken notes into structured notes with AI.

    • You record a thought like "meeting at 2 p.m. today, groceries on Thursday" and it pulls out the parts that matter. Free to use, with a Premium subscription through the App Store.
    • Transcription runs on the device, and an LLM pulls out the structure.

    Stack Swift, SwiftUI, on-device speech recognition, an LLM for extraction

  4. Logistics tools

    ardahdmi.com/tools

    Free browser tools for freight and warehouse decisions: Trailer fit, Pallet build, Cartons per pallet, Pallets per truck and Cold store racking.

    • Trailer fit compares eight published carrier rules for loading meters and billable weight. Pallet build turns a packing list into pallets and hands them on to Trailer fit.
    • In the Charge Smart demo a weight-aware planner saves a median 7.6% over 300 sampled days. Each demo pairs a decision the visitor makes with an exact solver.

    Stack TypeScript, Astro

  5. Rent Munich, Frankfurt, Bonn and Dortmund

    rentmunich.com, rentfrankfurt.com, rentbonn.com, rentdortmund.com

    rentmunich.com lists Munich apartments and relocation services, with booking in one place. The Frankfurt, Bonn and Dortmund sites are free rental guides for expats: neighbourhoods, real prices, tools and guides.