Dima

Dmytro Andrieiev
Python Backend Developer
Khmelnytskyi, Ukraine (open to remote) · [open contact info](look above in the "contact info" section) · [open contact info](look above in the "contact info" section)
[open contact info](look above in the "contact info" section) · github.com/forrex322
SUMMARY
Python backend developer with 5 years of experience who turns client business ideas into working, production-
ready software. I take features from architecture through to release and support, building Django / DRF backends
and payment integrations (Stripe, Adyen, Shopify). I own my work end-to-end and communicate directly with
PMs, analysts, QA, and frontend to keep things moving.
TECHNICAL SKILLS
Languages: Python, SQL
Frameworks & Libraries: Django, Django REST Framework, Celery, Pytest, django-fsm, boto3
Payments & Integrations: Stripe (Connect), Adyen, Shopify, OAuth2, webhooks, REST API design
Databases: PostgreSQL, Redis, MySQL, SQLite, MongoDB (+ BigQuery exposure)
Cloud & DevOps: AWS (Lambda, ECS, S3, SES, EC2, CloudWatch), Docker, GitHub Actions
Tools: Git, Jira, Sentry, Postman, Swagger, PyCharm
Practices: Zero-downtime migrations, query optimization, finite-state machines, incident investigation, code
review
WORK EXPERIENCE
Python Backend Developer — Dataforest Dec 2023 – Present
Fintech service that auto-prevents chargebacks: ingests card-network dispute alerts and lets merchants review or
refund orders within the response window before a dispute becomes a chargeback.
Stack: Python, Django, DRF, PostgreSQL, Celery, Redis, AWS (Lambda, S3, SES, CloudWatch), Docker, Stripe, Adyen,
Shopify.
• Was the first developer on the product: set up its initial architecture and core processes and built one of its
central modules end-to-end. The system grew into a profitable solution for the client.
• Built and shipped the integrations with major payment providers (Stripe, Adyen, Shopify) the product relies
on, and modeled the dispute and order workflows at the core of its business logic.
• Designed and optimized complex, data-heavy functionality for speed and scale — sharply reducing response
times and reworking large-volume data processing to run reliably, including features that span multiple data
sources, built together with a data engineer.
• Delivered changes safely on a live product with no downtime, and investigated production issues end-to-end
(incorrect statuses, unexpected invoices, broken integrations), tracing them to their root cause.
• Owned the release process and code review, and mentored junior developers — onboarding them, guiding
their work, and running internal knowledge-sharing sessions.
• Worked closely with product managers, analysts, QA, and frontend to clarify requirements and remove
blockers, and repeatedly stepped in under tight deadlines to fix and finish critical work.
Backend Developer — Steelkiwi Sep 2021 – Oct 2023
Software company; delivered backend across several client products.
Stack: DRF, PostgreSQL, Celery, Redis, Pytest, Django-Allauth, Google Calendar API, Docker.
• Mentorship platform (scheduling, feedback, skill development): authentication, calendar integration for
session scheduling, mentor onboarding, booking, and search.
• Recruiting management app (iOS / Android backend): authentication, dashboards, data export, and new
features.
• Vintage (vintage-goods marketplace): authentication, database upgrade, new features, and bug fixing.
• Tradem (child-safe trading marketplace): new features, refactoring, and bug fixing.
EDUCATION
Master's degree, Computer Engineering — Khmelnytskyi National University Sep 2023 – Jun 2025
Bachelor's degree, Computer Engineering — Khmelnytskyi National University Sep 2019 – Jun 2023
LANGUAGES
Ukrainian — Native English — C1