Gerard Klijs-Nefkens

Android Developer

https://talent.gravityer.com/gerard-klijs-nefkens

Doing mainly Java during office hours. Clojure, Rust and other stuff before and after.

Alliander

Key Strengths

Extensive personal project experience across multiple programming paradigms (Rust, Clojure, Kotlin, Java).
Demonstrated experience with event-driven architectures (Kafka, Axon, Event Store).
Proficiency in Kotlin and Java, which are highly relevant for Android development.
Experience with GraphQL, Docker, and various build/scripting tools.

Cultural & Operational Fit

Cultural Fit Analysis

The candidate's project history shows a strong inclination towards backend, event-driven systems, and functional programming (Rust, Clojure). While there is an 'Android Developer' role listed, it is current and has a future start date, suggesting limited professional Android experience. The personal projects do not strongly align with typical Android application development, which might indicate a different cultural fit or interest area than a dedicated Android role.

Soft Skills & Operational Fit

Insufficient data to assess soft skills and operational fit. Psychometric test scores are 0, providing no insight.

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Projects

vados

January 23, 2022 – March 5, 2022

A Rust Html generator, used with Bulma and a certain file structure to generate a static site.

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kotlin-coroutines-demo

October 18, 2021 – November 23, 2021

Demo project to simulate different kinds of java API calls, and how to handle them nicely with coroutines.

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bkes-demo

April 19, 2021 – May 27, 2022

Demo using three bkes servers, for user, bank account and transfer aggregates, via Clojure.

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bkes

April 10, 2021 – Present

Binary Kafka backed Event Store

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ksqlDB-GraphQL-poc

March 13, 2021 – January 15, 2023

A fairly simple setup to show how ksqlDB can be used with GraphQL.

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bob2021

January 23, 2021 – February 19, 2021

Repo used for a tutorial during BOB 2021, https://bobkonf.de/2021/klijs.html

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bank-axon-graphql

November 21, 2020 – September 1, 2022

Version of the open bank, using Axon instead of Kafka.

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kafka-graphql-examples

October 28, 2019 – June 25, 2020

A platform to test solutions for using Kafka with Graphql

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open-bank-mark

May 17, 2019 – December 14, 2019

A bank simulation application using mainly Clojure, which can be used to end-to-end test and show some graphs.

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schema_registry_converter

September 15, 2018 – Present

A crate to convert bytes to something more useable and the other way around in a way Compatible with the Confluent Schema Registry. Supporting Avro, Protobuf, Json schema, and both async and blocking.

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Key Strengths

Extensive personal project experience across multiple programming paradigms (Rust, Clojure, Kotlin, Java).
Demonstrated experience with event-driven architectures (Kafka, Axon, Event Store).
Proficiency in Kotlin and Java, which are highly relevant for Android development.
Experience with GraphQL, Docker, and various build/scripting tools.

Cultural & Operational Fit

Cultural Fit Analysis

Soft Skills & Operational Fit

Insufficient data to assess soft skills and operational fit. Psychometric test scores are 0, providing no insight.

Gerard Klijs-Nefkens

Key Strengths

Cultural & Operational Fit

Top Skills

Skills

Experience

Projects

Key Strengths

Cultural & Operational Fit