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Pyry K.

Experienced Software Developer

Moves to Berlin, Berlin, Hamburg, Munich, Frankfurt am Main, Köln

  • 52.517
  • 13.3888
  • Indicative rate €710 / day
  • Experience 7+ years
  • Response time A few days
Propose a project The project will only begin when you accept Pyry's quote.

Part time, 3 days a week

Propose a project The project will only begin when you accept Pyry's quote.

Location and geographical scope

Berlin, Deutschland
Can work in your office at
  • Berlin and 50km around
  • Around Berlin and 10km
  • Around Hamburg and 10km
  • Around Munich and 10km
  • Around Frankfurt am Main and 10km
  • Around Köln and 10km


Project length
  • Between 3-6 months
  • ≥ 6 months
Company size
  • 1 person
  • 2-10 people
  • 11 - 49 people
  • 50 - 249 people
  • 250 - 999 people
+2 autres



Stack Overflow

Stack Overflow : pyryjook pyryjook
  • 43 Reputation
  • 7 Bronze
  • 0 Silver
  • 0 Gold


  • Deutsch


  • Finnisch

    Native or bilingual

  • Englisch

    Native or bilingual


Skills (34)

Pyry in a few words

As a software development generalist, with solid 10 years of experience, I have worked in different positions depending on the need, be it front end, back end or data engineering. Readable, scalable and maintainable code is always my goal when writing software.

I have for example helped a bank to succeed in their big data analysis and projects related to that, I've helped a big European online retailer to implement technical architecture to scale their subscription based business European wide and I've also helped small startups to build their software products from scratch.

During the course of the last three years I've used and most enjoyed working with the following technologies: TypeScript Kotlin, Python, React.js, Node.js, Springboot, FastAPI, Pandas and Postgres.



Energy & Utilities

Software Developer  - As a freelancer

May 2020 - Today (1 year and 6 months)

Wunderdog GmbH

Digital & IT

Technology Lead & Software Consultant

Berlin, Deutschland

October 2019 - March 2020 (5 months)

Besides hands on software development I was also in charge of helping our tech team to succeed in their projects. Being part of the administrative team at Berlin ofVce I also took part in establishing internal structutures to help developers to focus on their core work. I also did recruitment, helped in sales.

Zalando SE


External Software Developer  - As a freelancer

Berlin, Deutschland

October 2018 - September 2019 (11 months)

I was developing new features for them, but besides that I also refactored huge chunk of their MVP code written in JS/Flow to TypeScript using Domain Driven Development fundamentals. The new code base runs in Kubernetes. I was leading the refactoring project.

Refactoring was done on both sides of the stack Node.js and browser side (React). In browser side we used React Hooks.

I was in this project via my employer Wunderdog Gmbh.
React.js TypeScript JavaScript Domain-Driven Development Architecture Node.js Kubernetes AWS

Wunderdog GmbH

Digital & IT

Software Developer & Consultant

Berlin, Deutschland

October 2018 - September 2019 (11 months)

As a software consultant I helped our client companies to succeed in their businesses, by helping them to build best possible software to match their needs.

Zalando SE was my client during my this employment.
TypeScript JavaScript Domain-Driven Development Architecture Node.js AWS Kubernetes

OP Financial Group

Banking & Insurance

Freelance Software Developer  - As a freelancer

Helsinki, Finnland

August 2017 - August 2018 (1 year)

API development using Java 8 and Kotlin with SpringBoot. Besides API development I was heavily involved in building AWS infrastructure for their Big Data Platform using Cloud Formation.

I also worked closely along with Data Scientists and helped them to set up their work flows on the platform.
I also refactored and implemented a bunch of their transformation parts of their ETL pipelines. Those pipelines where built in Python and PySpark. Main database that we used was Postgres.
Spark PySpark Python Java Kotlin PostgresSQL Cloud Formation API Development

Custobar Oy

Software Publishing

Freelance Software Developer  - As a freelancer

Helsinki, Finnland

September 2016 - June 2017 (9 months)

I build dashboard for them that allowed their customers to see how their marketing campaigns performed based on few key metrics. I was mainly working in the frontend part, using Vue.js and D3. But also did some backend part which was written in Python using Django.

Dear Lucy Oy

Software Publishing

Freelance Software Developer  - As a freelancer

Helsinki, Finnland

March 2015 - August 2016 (1 year and 5 months)

I was the second developer to join the team when there was only business idea and layouts. I was working as a full stack developer, doing Node.js backend and React frontend. We integrated to various data sources, CRM, accounting software and Google Spreadsheets.

Data was fetched via REST or SOAP and transformed the data suitable for our needs and then displayed that data on a nice fully responsive dashboard.

Samuel Klinkmann - Monday Digital Oy


I've known Pyry professionally since 2013. We started out working as colleagues for a few years, before we ended up starting a software consultancy company together in Helsinki. I can warmly recommend Pyry both as a developer and as a person. – he only brings positive attitude and great work ethics to any team!