Sergei Solovev

Sergei
Solovev

Python Backend Tech Lead · Agentic Engineering

I build backend platforms for complex business processes and AI tools for the full engineering cycle.

Download resume PDF · 40 KBMessage me on Telegram ↗Engineering collaborations, speaking, mentoring and compelling career opportunities.

Currently · Exness KYC Team

[ 01 · In numbers ]

Engineering impact

Three areas of impact: system throughput, a production platform, and my own engineering delivery.

200 → 2500

RPS

Backend scaling

Increased critical API throughput after rebuilding the gateway layer and infrastructure.

≈300K

verifications / month

Verification platform

An extensible orchestration platform: 10+ services and around 100 events per second on average.

+50%

delivery

Agents-first workflow

Average personal throughput for February–July 2026 versus the 2025 average.

[02 · What I'm doing]

Backend for real businesses

Architecture and delivery, technical leadership, agentic workflows and tools that help the team make good decisions faster.

01
Backend platform

Verification platform: from legacy to 300K processes per month

I designed an extensible platform from scratch, separating the verification domain model from orchestration and provider services. Temporal runs each stage of the process, PostgreSQL stores business state, and Kafka distributes events between independent services.

  • Human-in-the-loop: manual review and document reload cycles
  • Idempotency keys, transactional outbox and consistency at the database level
  • 10+ FastAPI services, S3-compatible storage and Kubernetes
  • Progressive rollout by geography with quick return to legacy
≈300K/month≈100 events/sTemporalKafkaPostgreSQL
02
Document intelligence

Documents turn into work context

I built a pipeline for document extraction, OCR, translation, and summarization. It cut average processing time from five hours to 1.43 hours and delivered an estimated $945K in annual value.

OCRLLMLangChainGoogle APIsKubernetes
03
Agentic engineering

Agents as part of the engineering cycle

A colleague and I built an internal harness that takes a task from planning through checks to a development environment. I led a cross-service AI code reviewer and build tools that bring together context from Sentry and Grafana.

Agents-firstCode reviewK8s dev standsSentryGrafana

[ 03 · Path ]

From high-load SQL to technical leadership

2022 - nowExness

Python Backend Tech Lead · KYC Team

Technical leadership for the backend platform, document intelligence and agentic engineering.

2019 — 2022ORI Team

Team Lead · Computer Vision startup

A team of four people: from requirements and architecture to CV models and edge deployment.

2016 — 2019Tensor

Fullstack Developer

Django/PostgreSQL, billing, analytics and optimization of high-load SQL.

Awards

Nornickel · Strawberry · OMK Accelerator - computer vision solutions for industrial problems.