Ivan Ivanov

Team Lead • Architect • Fullstack
Designing scalable systems, leading teams, delivering measurable business impact.

Executive Summary

Led team of 6 engineers • Owned backend platform serving 1.2M req/day • p95 latency 320ms → 180ms • infra cost -25%

Key Projects

Highload API
1.2M req/day • -40% latency

Team: 5 engineers

Ownership: backend architecture

Tech decisions: Go rewrite, Redis caching

Impact: throughput x2

Analytics Platform
500GB/day • 6h → 1.5h

Team: 4 engineers

Ownership: pipelines design

Tech decisions: Kafka + Airflow

Impact: 4x faster processing

Realtime System
200K users • <100ms

Team: 3 engineers

Ownership: realtime infra

Tech decisions: WebSockets + Redis

Impact: latency ↓ 60%

Billing System
$2M ARR • 99.99%

Team: 2 engineers

Ownership: payments

Tech decisions: event-driven

Impact: 0 critical bugs

Experience

Team Lead
Fintech Startup
2022 — Present
Owned backend platform serving 1.2M daily requests
Led team of 6 engineers • Reduced latency by 40% • Introduced microservices architecture • Improved deployment speed
Senior Engineer
Data Platform
2020 — 2022
Built large-scale data processing pipelines
Processed 500GB/day • Reduced processing time 4x • Designed scalable backend services
Fullstack Developer
SaaS Product
2018 — 2020
Developed product features and dashboards
Improved UX (+30% engagement) • Delivered core features • Supported rapid product growth
Backend Engineer
E-commerce
2017 — 2018
Order system
50K orders/day • failures -70% • checkout +25%
Junior Developer
Startup
2016 — 2017
Core features
20+ features • bugs -30% • releases x2 faster
Intern
Tech Company
2015 — 2016
Internal tools
saved 200h/year • automated workflows
Freelance
Clients
2014 — 2015
Web projects
10+ projects • revenue +20%
Student Dev
University
2013 — 2014
Prototypes
5 prototypes • 2 hackathons won

Contact

[email protected] • LinkedIn • GitHub