Ledgerline
Event-sourced payment reconciliation engine matching bank statements against internal ledgers in near real time, with an auditable replay log.
4M transactions reconciled per day
Room 01 — Entrance
KylePonce
Senior Python Developer
Open to new projects
I design and build backend systems, APIs and data platforms in Python — clean, typed, observable code that keeps running when the traffic doesn’t stop.
Scroll to walk the gallery
Room 02 — Profile
Python,
built to
last.
10+Years in Python
40+Services shipped
99.95%Uptime owned
I’m a senior Python developer with more than a decade of experience turning messy business problems into dependable software. My work sits where product meets infrastructure: high-throughput APIs, event-driven services and data pipelines that teams can actually reason about.
I care about type-safe code, honest tests and systems that explain themselves through good logs and metrics. I enjoy mentoring, running pragmatic code reviews and leading migrations — from monoliths to services, from Python 2 to modern async Python.
Toolkit
CorePython 3.12, asyncio, typing & mypy, Pydantic, pytest, Hypothesis
Web & APIsFastAPI, Django, DRF, GraphQL, gRPC, Celery
DataPostgreSQL, Redis, Kafka, Airflow, Polars, pandas, dbt
PlatformDocker, Kubernetes, AWS, Terraform, GitHub Actions, Prometheus
Room 03 — Works
Selected
works
Four pieces from recent years — production systems where Python carried real load and real money.
Tidepool
A data platform rebuild: Airflow orchestration, Polars transforms and dbt models replacing a fragile collection of cron scripts.
Nightly batch cut from 6 h to 48 min
Sentinel
Async observability agent that streams service metrics, flags anomalies with lightweight statistical models and opens incidents automatically.
Mean time to detect down 63%
pyrite-config
A small, fully typed configuration library: layered sources, secrets backends and validation errors humans can read.
1.2k GitHub stars, 30+ contributors
Room 04 — Career
A decade
in production.
Senior Python Developer
Fintech platform · Remote- Lead backend engineer for payments and reconciliation services in FastAPI and Kafka.
- Drove migration of a Django monolith into 12 typed, independently deployed services.
- Mentor five engineers; own code-review standards and on-call practices.
Python Developer
Logistics SaaS · Wrocław- Built route-optimisation APIs serving 300+ enterprise customers.
- Introduced Celery-based job processing and cut infrastructure costs by 35%.
- Led the Python 2 → 3 migration with zero customer-facing downtime.
Junior → Backend Developer
Digital agency · Hybrid- Delivered Django e-commerce and CMS projects for retail and media clients.
- Automated deployments with Docker and CI, shrinking release time from days to minutes.
- Wrote the team’s first testing guidelines and coverage gates.
B.Sc. Computer Science — Wrocław University of Science and Technology
AWS Certified Developer — Associate
Languages — English, Polish
Room 05 — Exit & contact
Let’s build
something
solid.
Backend architecture, a data platform that needs taming, or a team that needs a senior Python hand — I’d like to hear about it.
Start a conversation- Name
- Kyle Ponce
- Address
- Andrzeja Struga 7
59900 Zgorzelec
Poland - Phone
- +1 631 482 6850
© 2026 Kyle PonceSenior Python Developer