Dmytro

Dmytro Uvin
Looking for a remote position – Sales Manager, Customer/Technical Support Agent (L1, L2). Fluent English.
Brasov, Romania | [відкрити контакти](див. вище в блоці «контактна інформація») | [відкрити контакти](див. вище в блоці «контактна інформація»)/[відкрити контакти](див. вище в блоці «контактна інформація») | [відкрити контакти](див. вище в блоці «контактна інформація»)

SUMMARY
After working for more than 5 years as FullStack Developer, building complex systems, integrating dozens of APIs.
Communicating a lot with business stakeholders, participating in product planning, getting funded by investors. Have
experience in Customer/Technical Support communicating with users, gathering their feedback, helping to solve issues of
their.
Fluent in English (both spoken and written), meaning open for positions requiring making calls, communicating with leads,
users.

EXPERIENCE

FullStack Developer (React.js, Node.js) | NDA January 2025 - June 2026 | Remote
● Technical Support Engineer responsibilities – getting feedback from the users, helping them to set up an integration,
solve their problems.
● Maintenance of a company’s platform for educating employees. Implemented RAG across course materials (articles,
pdfs, documents). AI usage for writing code.
● Development of an e-commerce solution used for tracking marketing campaigns, sells, etc. Included tons of
integrations with main ads platforms - Meta, TikTok, Google; E-Commerce platforms - Shopify, Magento,
WooCommerce. AI usage for writing code.
● Technology stack: Node.js, React.js, PHP, API integrations (Google OAuth, Google Drive/Sheets/Docs, Google Ads,
TikTok, Meta, Shopify, Hotjar, etc), AI (RAG, custom skills, plugins, spec-driven development)

Lead, FullStack Developer (Node.js, React.js) | CloseCall.AI July 2023 – January 2025 | Remote (Australia)
Startup for the Australian market, from 1 developer to a team of 4 developers.
● Implemented AI pipelines for analyzing calls (transcribing audio, manually processing calls records to gather dataset
for finetuning model, testing different versions of prompts to find that work the best).
● Implemented RAG functionality for customers to be able to chat about daily/weekly reports, documents (provided
by customer, pdf/docx).
● Designed and built platform end-to-end as sole developer, taking it from MVP to production platform used by 30+
call center operators and 20 enterprise customers in Australia.
● Scaled system to handle call volume growth from dozens to ~1,000 calls/day over 18 months, including database
scaling and query optimization, and infrastructure scaling.
● Grew from individual contributor to technical lead of a 4-person development team as product and business needs
expanded. Platform's growth and stability helped the company secure investor funding.
● Technology stack: Node.js (Nest.js), React.js (Next.js), PostgreSQL, Prisma, Docker, Telephony (Twilio, Vonage,
Zadarma, VoIP, SIP, Zoiper), BullMQ, AWS (SQS, ECS, EC2, ECR, S3), AI tools (OpenAI models, AssemblyAI,
ElevenLabs), LangChain, Redis, OpenAPI.

Backend Developer (Node.js) | Physician Partners October 2021 – July 2023 | Remote (USA)
Mature product in the Healthcare domain, USA, BigData. Team of 12 people.
● Implemented RAG helper across company internal knowledge base using internally deployed AI model.
● Built and maintained backend systems processing terabytes of sensitive patient, doctor, and facility data under
HIPAA, PHI compliance, within a 12-person cross-functional team (6 backend, PM, QA, frontend).

● Maintained and extended a dual-database system (Google Spanner as primary datastore, Elasticsearch as
read-optimized layer), supporting complex multi-filter/sort operations on tables ranging from thousands to 100M+
rows.
● Optimized large-scale SQL queries, indexing, and caching strategies across datasets up to 100M+ rows.
● Authored technical documentation and onboarding specs for the platform's architecture and workflows, supporting
knowledge transfer across a 12-person cross-functional team.
● Tech stack: Node.js, Terraform, Kubernetes, Elasticsearch, Redis, RabbitMQ, GCP (Spanner, Pub/Sub, Functions,
Logs), OpenAPI
FullStack Developer (Node.js + React.js) | Taker.io | February 2020 – September 2021 | Remote
Delivery service for the Middle East market.
● Was part of the team (4 FS, 1 Mobile, 2 QA, 1 PM) as Full Stack developer
● Developed critical features required by stakeholders based on customer development – integrations with 3rd party
APIs (local payment systems, SMS, CRMs, custom APIs), optimizing DB queries, resolved performance bottlenecks
(during promotional periods)
● Implementing background processing via AWS SQS and AWS Lambda
● Developing complex system of discounts, promocodes, order live tracking. (WebSockets and GeoLocation APIs)
● Implemented Arabic/RTL localization across frontend, handling text rendering and locale specific UI.

CERTIFICATIONS & COURSES
● Elastic Certified Engineer - Elastic (2024)
● Anthropic AI Fluency & Claude Code Certifications (5 courses, including AI Fluency: Framework & Foundations,
Claude Code in Action) - Anthropic (2026)
● Zendesk Agent - Zendesk (2026)

EDUCATION
Bachelor's degree, Computer Science — National Technical University of Ukraine 'Kyiv Polytechnic Institute', 09/2020 -
06/2023

Languages
English — Advanced
Ukrainian — Native
Russian — Native

SKILLS
Troubleshooting and monitoring: log analysis (AWS Cloudwatch, Google Cloud Logs), error tracing (Sentry, New Relic),
OpenTelemetry, browser DevTools, Postman, curl, HAR
API and integrations: REST, webhooks, OAuth, OpenAPI/Swagger, WebSockets/SSE, Payment APIs (Stripe, PayPal, other),
Telephony (Twilio, Vonage, SIP, VoIP, Zoiper), Google APIs, Meta, SMS/Email providers, etc.
Databases: SQL (PostgreSQL, MySQL, Google Spanner, BigQuery), MongoDB, Redis, Elasticsearch
Languages: JavaScript, TypeScript, Node.js (any framework), PHP (Laravel, Symfony), React.js/Next.js
Infrastructure: Linux CLI, Docker, AWS, GCP, CI/CD (GitHub Actions, GitLab, CircleCI, Jenkins, Travis), RabbitMQ, BullMQ
AI tooling: OpenAI, Anthropic, Gemini APIs, HuggingFace, RAG, LangChain
Compliance: HIPAA, PHI, GDPR
Tools and workflow: Jira, Zendesk, Slack, Notion, Trello, Microsoft Teams