Berkay Orhan
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Berkay Orhan

SOFTWARE DEVELOPER · LINKÖPING

I build AI that works outside the demo.

Agentic retrieval, voice pipelines and the web apps around them. Now a software developer at Ericsson.

See my workDownload CV

02 / WORK

Things I've shipped.

  1. 01FastTalk
  2. 02SynGraph
  3. 03wikillm
  4. 04LiTHePlan
All 19 projects →

FastTalk: a real-time voice assistant, streamed end to end over WebSocket.

  1. you speak
    48 kHz audio

  2. Whisper
    speech to text

  3. LLM
    streams tokens

  4. Kokoro
    speaks back

03 / RESEARCH

My master's thesis, at Ericsson.

When Agentic Workflows Help · Ericsson · Jan–Jun 2026

which tests cover this change?

11,366 production test cases

the few that matter

dense
keyword
SQL
graph

which tests cover this change?

dense
keyword
SQL
graph

11,366 production test cases

the few that matter

An assistant that helps engineers find the right tests. I built 52 retrieval tasks by hand and ran them through two agent designs, ReAct and orchestrator-worker, on three open models.

Read the thesisBenchmark →

Also: SynGraph · AniMatch (with Jonatan Ebenholm)

04 / EXPERIENCE

Where I've been.

Each bar is a week of my GitHub contributions.

20211
202224
202310
202499
20251,431
20264,857so far

1,668 contributionsweek of 11 October 2026

BSc, Media Technology

Linköping University · 2021–2024

MSc, Machine Learning

Linköping University · 2024–2026

Thesis, then R&D intern

Ericsson · Jan–Sep 2026

Software Developer

Ericsson · Linköping · since Oct 2026

Each bar is a week of my GitHub contributions.

202120222023202420252026

BSc, Media Technology

Linköping University · 2021–2024

MSc, Machine Learning

Linköping University · 2024–2026

Thesis, then R&D intern

Ericsson · Jan–Sep 2026

Software Developer

Ericsson · Linköping · since Oct 2026

1,668 contributions

05 / ABOUT

I like the part after the demo: retrieval that returns the right thing, a voice that answers fast enough to feel like a conversation, and the web app people actually use.

how I build

  • interface

    Next.js · React

    Stats for Spotify · Oversee · Alertz · LiTHePlan · Fractured Crown

    where it shipped

    Stats for Spotify · Oversee · Alertz · LiTHePlan · Fractured Crown
  • agents

    LangGraph · PydanticAI

    Municipality Chatbot · SynGraph · FastTalk

    Municipality Chatbot · SynGraph · FastTalk
  • models

    vLLM · PyTorch

    FastTalk

    FastTalk
  • data

    PostgreSQL · Qdrant · Neo4j

    Stats for Spotify · Alertz · Municipality Chatbot · Clairvoyant

    Stats for Spotify · Alertz · Municipality Chatbot · Clairvoyant
  • infra

    Docker · Kubernetes

    FastTalk · Municipality Chatbot

    FastTalk · Municipality Chatbot
  • interface

    Next.js · React

    Stats for Spotify · Oversee · Alertz · LiTHePlan · Fractured Crown

    where it shipped

    Stats for Spotify · Oversee · Alertz · LiTHePlan · Fractured Crown
  • agents

    LangGraph · PydanticAI

    Municipality Chatbot · SynGraph · FastTalk

    Municipality Chatbot · SynGraph · FastTalk
  • models

    vLLM · PyTorch

    FastTalk

    FastTalk
  • data

    PostgreSQL · Qdrant · Neo4j

    Stats for Spotify · Alertz · Municipality Chatbot · Clairvoyant

    Stats for Spotify · Alertz · Municipality Chatbot · Clairvoyant
  • infra

    Docker · Kubernetes

    FastTalk · Municipality Chatbot

    FastTalk · Municipality Chatbot
Download CV →

06 / OFF THE CLOCK

Photography.

All 67 photos →
Orange shrine gate lit at duskJapanMount Fuji under a pale skyJapanLighthouse on a pier at sunsetPortugalTram 18 to ClérigosPortugalStone torii beside a pondJapan

07 / CONTACT

Building somethingthat has to work?

berkayorhan@hotmail.se

GitHub ↗LinkedIn ↗

Berkay Orhan© 2026

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