Ethan J. Marlowe
Python Developer, Backend Services
Raleigh, NC · (919) 555 0149 · name@example.com · linkedin.com/in/ethanjmarlowe
Key Qualifications
EXPERIENCE
Four years of backend Python development, three on a high volume logistics platform
INDUSTRIES
Logistics software serving 400 freight customers; digital agency work before that
SPECIALTIES
Django services, Celery task queues, PostgreSQL query tuning, service latency, test coverage
SYSTEMS
Python 3.12, Django, Celery, PostgreSQL, Redis, Docker, Amazon Web Services, GitHub Actions, Datadog
CREDENTIALS
Amazon Web Services Certified Developer Associate
EDUCATION
Bachelor of Science in Computer Science, Neuse River State University
Executive Summary
Python developer with four years building backend services, the last three at a logistics software company whose shipment tracking platform handles about 12 million events a day for 400 freight customers. Works in Django, Celery and PostgreSQL on Amazon Web Services, owns the rate calculation service end to end and is the person the on call rotation pages when the queue backs up. Holds the Amazon Web Services Certified Developer Associate credential.
Signature Achievements
- Cut the 95th percentile latency of the rate calculation service from 820 milliseconds to 210 by rewriting the carrier lookup queries and adding a Redis cache.
- Raised test coverage on the shipment service from 61 percent to 88 percent and made the coverage gate part of every pull request.
- Moved the team from a weekly release to daily deployments by building the GitHub Actions pipeline with database migrations and canary checks.
- Reduced failed Celery tasks in the tracking pipeline from about 3,000 a day to under 50 by adding idempotent retries and dead letter handling.
- Reviewed about 30 pull requests a month with a median first review turnaround under four hours.
- Earned the Amazon Web Services Certified Developer Associate credential in 2024.
Professional Experience
Software Engineer II, Python
Piedmont Freight Systems, Raleigh, NC March 2023 to present
Shipment tracking and rating platform processing about 12 million events a day for 400 freight customers; eight person backend team
- Build and maintain Django services for shipment rating, tracking and customer notifications on Amazon Web Services.
- Own the rate calculation service, including its PostgreSQL schema, Celery workers and Datadog alerts.
- Write unit and integration tests in pytest and keep the coverage gate at 85 percent on every merge.
- Carry the on call rotation one week in six and write the incident review after every page.
- Review pull requests for the backend team and pair with two junior developers each week.
Junior Python Developer
Oak City Digital Studio, Durham, NC July 2022 to March 2023
Digital agency building web applications for about 20 small business and nonprofit clients
- Built Django and Flask applications for client websites, including forms, payments and admin screens.
- Deployed client applications to Amazon Web Services with Docker and wrote the runbooks.
- Fixed about 40 client reported bugs a month from the agency ticket queue.
Certifications and Training
Amazon Web Services Certified Developer Associate, certified 2024
Python Institute Certified Associate in Python Programming, certified 2022
Education
Bachelor of Science in Computer Science, Neuse River State University, Raleigh, 2022
Core Skills
Django service development · Celery task queues · PostgreSQL query tuning · Redis caching · Pytest coverage gates · GitHub Actions pipelines · Docker containers · Datadog alerting · On call incident response · Pull request review