Independent contractor · The Hague, Netherlands · Available now

Oleksandr Starnikov

Solution architect

AWS Certified Solutions Architect Professional

A solution architect with a decade of experience designing and building advanced B2B systems end-to-end — across cloud infrastructure, data engineering, and web application development. Currently operating as an independent contractor, providing remote software architecture and engineering services, while remaining open to long-term contracts and full-time roles.

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Selected work

Technical lead/architect, Rio AI
2021 - present
- Migrated the data platform from Snowflake to Redshift, trading raw compute for the precision of AWS-managed zero-ETL integration — a shift that cut data-related bugs reported that year by 75% compared with the year before
- Built an AI- and Sentry-driven error-remediation system that automatically diagnoses and resolves runtime errors, cutting response time to production bugs to 15 minutes
- Planned and led the rollout of a new design system for a full product redesign spanning more than 1,000 React components, sequenced for a smooth, incremental migration
Full-stack developer, Rio AI
2019 - 2021
- Designed database schemas and ETL pipelines that supported complex business requirements across Amazon Aurora, Snowflake, and Amazon Athena
Node.js developer, SoftServe
2018 - 2019
- Managed Terraform-based AWS infrastructure including SQS, DynamoDB, EC2, and S3
Frontend developer, SoftServe
2017 - 2018
- Extended the platform with offline data processing and reactive visualisations using TypeScript, React and Highcharts
Junior full-stack developer, Icecat.biz
2016 - 2017
- Developed an isomorphic JavaScript application for an e-commerce platform

What colleagues say

A natural ability to bring colleagues together into a tight, focused team — and the determination to raise standards right across the group.
CTORio AI
Smart, results-oriented, and fearless with new technologies — a perfect fit for R&D projects, with real leadership experience.
Head of developmentSoftServe
An exemplary lead developer. Any team would be lucky to have him as their Tech Lead, Solutions Architect, or CTO.
Senior developerRio AI
Probably the most capable and responsive developer I have worked with — the kind who comes to the table with options rather than issues.
Head of developmentRio AI
Consistently delivered high-quality code and innovative solutions to complex problems — and upskilled himself in carbon accounting remarkably fast.
Sustainability consultantRio AI

A natural ability to bring colleagues together into a tight, focused team — and the determination to raise standards right across the group.
CTORio AI
Smart, results-oriented, and fearless with new technologies — a perfect fit for R&D projects, with real leadership experience.
Head of developmentSoftServe
An exemplary lead developer. Any team would be lucky to have him as their Tech Lead, Solutions Architect, or CTO.
Senior developerRio AI
Probably the most capable and responsive developer I have worked with — the kind who comes to the table with options rather than issues.
Head of developmentRio AI
Consistently delivered high-quality code and innovative solutions to complex problems — and upskilled himself in carbon accounting remarkably fast.
Sustainability consultantRio AI

Skills

Cloud & Infra

Amazon Web Services
Terraform
Serverless computing
CI/CD
GitHub Actions
Docker
CloudFormation

Data

Data engineering
Snowflake
ETL
Business intelligence
SQL
MySQL
PostgreSQL
Redshift
MongoDB
DynamoDB
AWS Glue
Apache Spark
Excel

Development

Node.js
React
TypeScript
Python
Bash
GraphQL
RESTful API
Claude Code

Leadership

Team leadership
Junior staff mentorship
Requirements analysis
Technical debt management

Oleksandr Starnikov

Selected work

Technical lead/architect, Rio AI

Full-stack developer, Rio AI

Node.js developer, SoftServe

Frontend developer, SoftServe

Junior full-stack developer, Icecat.biz