Contact information

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Work experience

Backend developer

from 08.2022 to now (4 years)
Hillside IT Consulting Group, Remote (IT)

- Engineered and deployed 15+ full-stack web platforms, maintaining 99.95% uptime and serving 500 K+ monthly users.
- Designed and implemented RESTful + GraphQL APIs handling 10 M+ requests/day with sub-50 ms latency.
- Architected modular front-ends using React/Next.js/TypeScript, cutting delivery time by 35 % via FSD-based reusability.
- Built and optimized backend microservices with Node.js, FastAPI, . NET, reducing CPU usage by 28 % under peak load.
- Improved API latency by 42 ms and boosted throughput by 20 % using async I/O + Redis caching.
- Managed AWS/GCP infrastructure (ECS, Lambda, Cloud Run, Pub/Sub) cutting infra cost by 25 % through autoscaling + Terraform.
- Created CI/CD pipelines with GitHub Actions + Docker, trimming manual release effort by 90 %.
- Integrated secure auth (JWT, OAuth2, SSO) across 7 distributed systems, reducing auth issues by 60 %.
- Built real-time services via Kafka/WebSockets, enabling < 100 ms updates for analytics + messaging.
- Designed optimized PostgreSQL/MongoDB schemas, cutting query time by 45 %.
- Delivered reusable UI + API libraries reused across 10 projects, raising delivery speed 30 %.
- Developed analytics dashboards processing 1 TB+ monthly data for client insights.
- Led cross-team delivery achieving 100 % on-time completion of 20 projects.
- Performed 150+ code reviews, cutting defect rate 40 %.
- Automated testing (Jest/Playwright/Pytest) reaching 90 %+ coverage.
- Mentored 5 engineers; 2 promoted internally.
- Migrated legacy PHP systems to TypeScript stacks, removing 60 % tech debt.
- Implemented ELK + Prometheus + Grafana, shortening MTTR from 2 h → 20 min.
- Built blue-green deploys with zero downtime.
- Collaborated directly with clients on KPIs, keeping 100 % satisfaction.
- Authored ADRs/docs reducing onboarding time 50 %.
- Drove backend performance audits achieving 98th-percentile latency.

- Tech Stack: React, Next.js, TypeScript, Node.js, FastAPI, C#/.NET Core, PostgreSQL, MongoDB, Redis, AWS, GCP, Docker, Terraform, Kafka, ELK, Prometheus, Grafana, CI/CD, FSD, SOLID.

Backend developer

from 03.2020 to 08.2022 (2 years 6 months)
Beyondsoft, Remote (IT)

- Designed + maintained distributed systems serving 5 M+ API calls/day with 99.98 % uptime.
- Built microservices in Python (FastAPI) and Java (Spring Boot) across 12 enterprise projects.
- Optimized PostgreSQL/MySQL queries, lowering latency 55 %.
- Implemented async pipelines (Kafka/Celery/RabbitMQ) cutting job time 40%.
- Developed internal API gateway improving cross-service calls 10×.
- Added caching (Redis/Memcached) boosting read speed 2.3×.
- Containerized all core apps via Docker + Kubernetes, reducing ops 80 %.
- Automated CI/CD with GitLab CI, sustaining zero failed deployments for 6 quarters.
- Refactored monolith → microservices, shrinking deploy 25 min → 4 min.
- Hardened security with OAuth2/JWT, achieving 0 critical vulns in audits.
- Profiled performance via Prometheus/Grafana, improving response consistency 35 %.
- Implemented structured logging + tracing (ELK/OpenTelemetry) for sub-minute triage.
- Mentored 4 engineers; boosted velocity 20 %.
- Drove sprint planning achieving 100 % feature delivery each iteration.
- Authored API docs (Swagger/OpenAPI) cutting onboarding time 50 %.
- Supported finance/e-commerce/logistics clients to hit scalability KPIs.
- Wrote automated tests (Pytest/JUnit) → 95 % coverage.
- Enforced SOLID/clean architecture → maintenance -30 %.
- Delivered HA systems exceeding SLA 15 %, securing repeat business.
- Standardized backend patterns across projects, improving security compliance.

- Tech Stack: Python (FastAPI, Celery), Java (Spring Boot), Node.js, PostgreSQL, MySQL, Redis, Kafka, RabbitMQ, Docker, Kubernetes, GitLab CI/CD, AWS, ELK, Prometheus, Grafana, OAuth2, Swagger, SOLID.

Backend engineer

from 07.2016 to 02.2020 (3 years 8 months)
CNT Management Consulting, Remote (IT)

- Delivered 10+ enterprise solutions achieving 99.9 % uptime across finance+ logistics clients.
- Built APIs with Node.js/Express + FastAPI, handling 2 M+ requests/day (<70 ms).
- Integrated Salesforce/SAP/ERP APIs saving 400+ hours monthly of manual work.
- Implemented JWT/OAuth2 auth reducing unauthorized access 85 %.
- Developed data dashboards (D3.js/Chart.js) → user engagement +30 %.
- Designed efficient PostgreSQL/MongoDB schemas, query time -50 %.
- Introduced server-side caching + CDN, page load -1.8 s.
- Built automated pipelines with Jenkins + Docker, deploy time -83 %.
- Created unit/integration tests (Pytest/Jest) reaching 88 % coverage.
- Participated in architecture reviews ensuring 100 % on-time delivery.
- Migrated legacy PHP systems → TypeScript/Node.js, maintenance
cost -40 %.
- Implemented monitoring (ELK + Prometheus) → issue detection +60 %.
- Designed role-based access controls → security compliance +100 %.
- Automated reporting workflows → manual effort -70 %.
- Collaborated with clients on UX flows → 95 % satisfaction.
- Mentored junior engineers → defect rate -35 %.
- Supported frontend teams (React/Angular) with optimized endpoints → latency -40 %.

- Tech Stack: Node.js, Express, FastAPI, React, Angular, TypeScript, PostgreSQL, MongoDB, Redis, Docker, Jenkins, AWS (EC2, S3), D3.js, Chart.js, ELK, Prometheus, OAuth2, JWT, CI/CD, SOLID.

Education

Beijing Technology and Business University

Computer Science, Other countries
Higher, from 2011 to 2016 (5 years)

Bachelor’s Degree in Computer Science

Knowledge and skills

• Communicability
• JavaScript
• HTML
• CSS
• Git
• React
• Node.js
• GitHub
• TypeScript
• MySQL
• SQL
• SASS
• Figma
• PHP
• PostgreSQL
• Bootstrap
• MongoDB
• JQuery
• Redux
• Docker
• Website development on Shopify
• WordPress
• IOS development
• Android Studio
• C#
• C/C++
• Symfony
• Python
• Material UI
• Tailwind CSS
• Vue.js
• Next.js
• Express.js
• Cloudflare
• TypeORM
• Django
• AngularJS
• Docker Compose
• Azure DevOps Server
• Kubernetes
• Kotlin
• REST API
• React Redux
• React Native
• JQuery Mobile
• ASP.NET Core
• Golang
• Shopify CLI
• Blockchain
• CI/CD

Language proficiencies

English — fluent

Additional information

Senior Backend Engineer with 9+ years of experience building and optimizing large-scale, distributed systems in cloud and web environments.
I’ve delivered high-performance APIs, event-driven microservices, and automation pipelines handling millions of requests daily with 99.95% uptime.
Skilled in Python (FastAPI), Node.js, Java (Spring Boot), and .NET, with solid expertise in PostgreSQL, MongoDB, Redis, Kafka, and RabbitMQ.
I’m passionate about clean architecture, DevOps automation, and mentoring teams to build scalable, maintainable, and high-impact systems.

My expected salary is $1,800–$3,500 per month, but it’s negotiable.

I can start work immediately.
Telegram: @NevaSpark