Backend Platform Engineer & Messaging Systems

Mitchell Szczepanczyk

**** *. ******** ***., ********* 2N, Chicago, IL 60625, USA

773-***-**** ********@****.*** github.com/msszczep gist.github.com/msszczep https://www.linkedin.com/in/mitchell-szczepanczyk-6899255/ BRIEF PROFILE

Software engineer holding more than a quarter-century of experience across a variety of technologies and programming languages.

SUMMARY OF TECHNICAL EXPERIENCE

Programming languages:

11 years experience: Clojure.

9 years experience: Clojurescript, Python, Javascript, C Shell.

8 years experience: PHP, Perl.

7 years experience: Elm, Ruby (on Rails).

5 years experience: React, Wolfram (Mathematica).

3 years experience: Java, C.

1 year experience: Dyalog APL, Elixir, Erlang, Haskell, Lisp, JSP, Classic ASP.

< 1 year experience: C++, Rust, Scala, TypeScript.

Cloud technologies:

7 years experience: AWS -- S3, EC2, Lambda (Python), Elastic Beanstalk.

1 year experience: Google Cloud.

Database applications:

MySQL (16 years)

Postgres (8 years)

MSSQL (7 years)

Neo4J (1 year)

AI technologies: ChatGPT, Microsoft Copilot.

Operating systems: Mac OS X, UNIX, Windows, Linux (Debian, Ubuntu, Redhat).

Other web technologies: XML, JSON, Git, HTML, CSS, SGML, LaTeX. EMPLOYMENT HISTORY

Software Developer, Population Matters / PEP, Jan. 2026 – present

Helped build and maintain economic modeling software (Clojure/Clojurescript).

Senior Software Engineer, OpenMarkets, Jun. 2018 – Mar. 2026

Helped build and maintain web hospital equipment exchange

(Clojure/Clojurescript).

Helped build and maintain web purchase approval mechanism (Ruby on Rails/Javascript).

Helped build and maintain price optimization interface (Elixir/React).

Senior Software Engineer, Air Spares Unlimited, Jan. 2018 – Jun. 2018

Helped develop back-to-birth airplane parts tracing app (Clojure/React).

Senior Software Engineer, OpinionLab, Apr. 2007 – Dec. 2017

Helped develop OpinionLab’s extraction-transfer-load software (Clojure).

Developed a syntactic parsing visualizer for English sentences

(Clojure/Clojurescript).

Developed word/data processing web applications (Elm).

Developed OpinionLab’s language-related data analysis tools, including a natural language-identification program and a keyword analyzer (Python).

Built and maintained OpinionLab’s internal data retrieval programs and APIs

(Python).

Built and maintained OpinionLab’s email-generating programs (Python).

Helped maintain OpinionLab’s internal management software (Ruby).

Maintained OpinionLab’s third-party survey software (JSP).

Electronic Publishing Developer, Univ. of Chicago Press, Jan. 2000 – Apr. 2007

Helped develop in-house software for text-conversion, web statistics, and database queries (Perl).

Built and maintained more than fifteen web-database applications for technical support, manuscript tracking, and email tracking-and-response purposes

(Javascript, PHP).

Helped develop scripts for automatically-generated webpages (PHP, Perl).

Served as over-the-phone help and tech support for Web Peer Review system.

Electronic Publishing Coordinator, Univ. of Chicago Press, Oct. 1998 – Dec. 1999.

Converted manuscript files across different file formats (LaTeX, SGML, XML).

Helped maintain Press websites (HTML, Javascript). Computer Consultant, SPSS, Mar. 1998 – Jun. 1998.

Updated software files (Fortran).

VOLUNTEER HISTORY

Lead Developer, Northern California Public Broadcasting, Jan. 2020 – present.

Migrated audio file management system from PHP to Python/Django. IT Team Member, Chicago Independent Media Center, Jan. 2001 – Dec. 2025.

Maintained and migrated website infrastructure on PHP/Drupal. CERTIFICATIONS

Machine Learning, Coursera, June 2017.

Credential ID: 6BLJWC8EXE3Y.

EDUCATION

University of Chicago, Chicago IL; MS in Computer Science, June 2003.

University of Chicago, Chicago IL; MA in Linguistics, June 1998.

University of Michigan, Ann Arbor, MI; BA in Linguistics and Anthropology, May 1996.

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