Tech Lead at Rove

Led a cross-functional engineering team of 3 (senior frontend, mid backend, mid QA automation) shipping Rove's product analytics and retailer-assessment platform from zero to 60+ enterprise clients. Architected and shipped LLM chains across multiple groups, orchestrated via PromptHub over Anthropic, OpenAI, Vertex and xAI. Implemented vendor-aware request governance with per-provider RPM ceilings tracked in Redis via a custom ApiUsageCallbackHandler. Built a Temporal.io ETL platform integrating 23 external sources (~400 scheduled runs/day), spanning 44 workflow types and ~130 activity methods. Designed a caching framework to absorb redundant calls to non-idempotent external LLM/third-party APIs, reducing external API spend. Owned AWS infrastructure on an ~800 USD/month operating budget; platform supported a successful funding round (NDA) and now serves 60+ international clients.

Python Developer at Toloka AI

Built FastAPI services and Bazel-managed modules across a monorepo. Designed Temporal.io ETL pipelines running 1,000+ workflow executions/day and replaced ad-hoc scripts with versioned, observable Temporal workflows, reducing manual maintenance effort by ~90% within 6 weeks. Developed DataBricks/Jupyter notebooks to produce cleaned datasets using SQL and DataBricks pandas-compatible DataFrame API. Designed PostgreSQL schemas and managed migrations; mentored junior engineers on Python and cloud deployment patterns (AWS/Azure).

Back End Developer at SuperPedestrian (via Altoros LLC)

Built billing backend with Django/DRF and Redis handling 5,000+ transactions/day. Integrated and maintained Stripe, PayPal, Braintree and PaymentsOS payment providers. Designed PostgreSQL schemas and Docker/Docker Compose infrastructure; mentored a junior engineer on backend Python and payments integration. Supported Turkish-market launch and rollout of group-ride features.

Full Stack Developer at Vizorlabs LLC

Designed microservices architecture using Docker/Docker Compose and built backend services (Django/Flask/FastAPI) for enterprise clients in nuclear energy, oil & gas, oil refining and coal industries. Delivered multiple projects for state-owned enterprises and in-house products, including an AD-integrated authentication server and an internal Markdown documentation tool used by 200+ external users. Managed GCP infrastructure (Cloud Storage, GCE) and helped grow the team from 7 to 16 engineers.