Backends, infrastructure, and the wiring between systems.
- Location
- Kyiv, Ukraine (UTC+2, UTC+3 in summer)
- Current
- Senior Developer, The Parker Avery Group
- Education
- MSc Electronics, Robotics and IoT, DU "KAI"
- Status
- Open to select independent engagements
What I actually do
I'm a Senior Developer from Kyiv, Ukraine. I take the IT problems that don't really fit a SaaS model: backends, infrastructure, streaming pipelines, embeddable forms, on-site builds - and handle them through from the initial interaction to the handover. I'm currently a Senior Developer at The Parker Avery Group, working on enterprise systems for US retail and CPG, and I'm exploring select independent engagements alongside it. When the brief calls for it, I'll do the frontend and the motion too, but the center of my "personal choice" is systems building. Alongside all of these, I finished a Master's in Electronics, Robotics and IoT at KAI in 2026 - the hardware end of the same "not-so-SaaS" stack.
Where I've been
- 2015-2018Self-taught buildsFreelance
Taught myself the stack and put my first sites into production as freelance work.
- 2019Cropman.ioFull Stack Engineer / DevOps (incl. SRE), Tech Lead
A multi-image editor right in the browser. Built it with classmates from DAN.IT and sold it as a product.
- 2019QberryFull Stack Engineer / DevOps (incl. SRE)
My first salaried job, at an outsourcing firm. Production reliability and product work.
- 2020-2022MobilautoFull Stack Engineer / DevOps (incl. SRE), Team Lead
Ran the taxi platform end to end: the Cabinet24 CRM, the Express Soft dispatch platform, Mobilauto Web, the gateway and the partner bridge. prpcow and rust-wasmpack-loader came out of this work as open source. It ended in spring 2022, with the full-scale invasion.
- 2022-2024MobilautoSenior Technical Consultant
I'd already moved to The Parker Avery Group when Mobilauto came back to life. I owned a lot of its parts, so I pretty much got pulled into a 2-year knowledge transfer.
- 2022-nowThe Parker Avery GroupNowSenior Developer
Enterprise systems integration for US retail and CPG: the Unified Demand Intelligence platform and Ask Udi.
Studies
- 2021-2025Kyiv Aviation Institute (National Aviation University)Bachelor's, IoTFaculty of Electronics, Robotics, Monitoring and IoT Technologies. Average mark 89/100. Qualification work: Network Protocol for Remote Function Calls (RPC-like) as the primary seamless connection between EDGE devices in IoT.
- 2025-2026Kyiv Aviation Institute (National Aviation University)Master's, Electronics, Robotics and IoTFaculty of Air navigation, Electronics and Telecommunications.
- 2019-2021DAN.IT EducationFull stack courseAverage mark 80/100.
Tools I reach for
01Languages
- TypeScript / JavaScript
- Python
- Rust
- Go
- Java
- C#
02Runtimes
- Bun
- Node
- WASM in the browser
- Edge runtimes
03Frontend
- Next.js
- React
- Tailwind CSS
- Angular
- Vue
- Nuxt.js
04Backend & messaging
- Node
- prpcow
- REST
- RPC
- GraphQL
- WebSockets
- gRPC
- Protobuf
- Spring
- Microservices
05Orchestration
- Kubernetes
- K8s on bare metal (Talos, k0s)
- ArgoCD
- Devtron
- Custom CSI / Operators
- k3s
- Docker / Podman
- CI/CD automation
- Terraform
- Ansible
06Multimedia
- HLS
- Streaming pipelines
- nginx-vod-module
07Auth & identity
- Keycloak
- Zitadel
- OIDC / OAuth2
- SSO / IdP federation
08CMS
- Strapi
- Custom headless
09Data & AI
- ClickHouse
- pgvector
- qdrant
- OpenAI APIs
- Langfuse
- LangFlow
- LangGraph
- RAG / embeddings
- LangChain
- Apache Spark
- DuckDB
10Queues & gateways
- Kafka
- Valkey / Redis
- Higress
- RabbitMQ
- KubeMQ
11Observability
- SigNoz
- OpenReplay
- Microsoft Clarity
- Datadog
- Prometheus
- Grafana
12Cloud & hosting
- Self-hosted infrastructure
- Bare metal
- Major clouds
- Private, air-gapped and hybrid environments
- EDGE computing
13Realtime & telephony
- Asterisk
- A2Billing
- WebRTC softphones
- Custom TURN / STUN with strong auth
14Databases
- PostgreSQL
- MySQL / MariaDB
- SQL Server
- Oracle DB
- MongoDB
- Cassandra
- Couchbase
- SQLite
15Storage
- S3 / MinIO
- GCS
- Azure Blob
- B2
- NFS / SMB
- Ceph
16LLM serving
- vLLM
- Ollama
- Quantization (w4a16, FP8)
- Multi-GPU serving over NVLink
- OpenAI-compatible APIs (Chat and Batch)
- Throughput and latency load-testing
Where I've worked and studied
- DAN.IT
- KAI
Here's the file
Some places I've been
Kyiv is home, but I travel whenever I can. These are just a few of the photos that came out well (by my very strict judging).
The geese were here first, and they want you to know it. October, doing exactly what everybody expects from it. Thumbs up for a river that thinks it's a sea. Finally found the bug, and for once it wasn't in my code. Guarding the old town, mostly by leaning on it. Standing between two continents, still waiting for a build to finish. Horizontal scaling. Captain's log, Lake Como. Command taken, and the whole crew (me) brought safely back to shore.
Want to hire me?
Signal is the fastest way to reach me, and email works too. Tell me what the role is and what the system behind it looks like today.