Steffan

5.0

(11 reviews)

US$30.00

For every 15 mins

Sessions/Jobs

ABOUT ME

Data analyst with 8 years experience in startups and big corporations

Welcome! I have seen it all from fast-paced startups to working full time for T-Mobile and Microsoft. I'm "fluent" in coding and have used many different languages to deliver analytical insights to customers, co-workers, and executive leadership. I've been an algebra and calculus tutor since high school, trained in college to communicate concepts in an engaging and holistic way. Tutors (and new interns!) have always thanked me for my thoughtful and effective teaching style. Hope to hear from you!

Pacific Time (US & Canada) (-08:00)

Joined October 2021

EXPERTISE

D3.js

6 years experience | 7 endorsements

I used D3 for all my interactive visuals. At T-Mobile I used D3 as an interface for Mapbox, Leaflet, and Carto geospatial maps. I underst...

I used D3 for all my interactive visuals. At T-Mobile I used D3 as an interface for Mapbox, Leaflet, and Carto geospatial maps. I understand the steep learning curve required to use D3, and I've worked hard to make it as accessible as possible

Power BI

5 years experience | 4 endorsements

I used Powerquery and DAX daily at Microsoft to build reports and automate data analysis

Data analytics DAX

GIS

8 years experience

Clojure

4 years experience

REVIEWS FROM CLIENTS

5.0

(11 reviews)

hermy

November 2021

Great mentoring as usual

Erica Leverson

November 2021

You saved the day!!

Erica Leverson

November 2021

Very helpful with guiding me through my process for my Power BI project

hermy

November 2021

I have had several sessions with Steffan. Great mentoring skills as usual

hermy

October 2021

Excellent as usual. Will use Steffan again

Alma Lopez

October 2021

Steffan is one of the best tutors I have encountered here at Code Mentor. He went right straight to the point and helped me to solve my merging issue.

hermy

October 2021

Brilliant!!! Can't stress enough how good Steffan is Understood the requirement extremely well. Very please with him, actually I will schedule regular sessions with Steffan.

Annie Cushing

October 2021

Steffan was great. I was stuck w/ a Dash issue, and he helped not only get me unstuck but he showed me a reusable workflow to prevent the issue in the future. He will definitely be my go-to guy for all things Python!

SOCIAL PRESENCE

GitHub

unity2020maps

CSS

StudyChinesewithTwitter

Java

EMPLOYMENTS

Business Analyst

Microsoft

2020-01-01-2021-10-01

Built, maintained, and cleaned databases for the Support for Mission Critical team at Microsoft, using PowerBI, Powerquery, and DAX to au...

Built, maintained, and cleaned databases for the Support for Mission Critical team at Microsoft, using PowerBI, Powerquery, and DAX to automate analytics workflow and ensure data integrity.

SQL

Data

Data analytics

SQL

Data

Data analytics

DAX

Power BI

Software Developer

T-Mobile

2018-07-01-2019-12-01

Built maps using Mapbox (Javascript) querying geospatial data from a Postgresql production database, with interactive controls using D3.j...

Built maps using Mapbox (Javascript) querying geospatial data from a Postgresql production database, with interactive controls using D3.js. This tool was for internal use, designed to make big data accessible for executive leadership and other teams with similar missions.

Python

PostgreSQL

D3.js

Python

PostgreSQL

D3.js

JavaScript

Mapbox

Business Analyst

Rockisland Communications

2015-03-01-2018-06-01

Joined this startup as their only analyst, helping to design a new fiber-optic internet infrastructure for the San Juan Islands. Used pyt...

Joined this startup as their only analyst, helping to design a new fiber-optic internet infrastructure for the San Juan Islands. Used python to build network models, GIS to plot these networks, and visualization libraries (Grafana, PowerBI) to build real-time reports. Success designing these systems lead to full time employment at T-Mobile.

Python

GIS

Grafana

Python

GIS

Grafana

Power BI