Aleksey K

SKILLS

• Cloud: Proficient in AWS(iam/roles/permissions, EC2, S3, ELD, EKS, etc), Hetzner, others including specialized like Twilio.
  Docker expert, Kubernetes, Ansible, Terraform. CI/CD. Networking, routing for secure services/API interaction.
  Infrastructure as code approach. Up, Down, Development, Test, Production config/templates/environments.

• AI, LLM, Machine Learning:

  • NLP techniques and linguistic tree analysis at sentence/grammar or morphology features level.

  • LLMs hosted pipelines, cloud GPU/on demand usage with Hugging Face, Runpod, Lambda labs, Tensordock.

  • Vector databases such as Pinecone Cloud or hosted Millvus/S3/etcd distributed cluster database.

  • RAG knowledge retrieval pipelines, LlamaIndex, LLM model evaluation within labeled dataset.

  • Hybrid Search, multiple retrievers including graph(Nebula Graph), ranking(manticore), evaluating results.

  • Prompt engineering, optimizing for token limits/costs with various models, including self-hosted.

  • Post-Training optimization for production(quantization, vLLM, etc) for Large Language Models.

• Data Lake architecture: Apache Spark, Apache Metastore/Thrift, SQL, PySpark, Trino, Dbt, ELT/ETL pipelines.
  Luks encyption. OpenZFS filesystem planning, tuning, benchmarking/fio, snapshots management.

• Big Data storage/tables: Polars/DuckDB/Parquet tables, Delta Lake data, S3/MinIO/other backends.

• Distributed messaging:  Apache Kafka ecosystem, configuration, benchmarking, Spring Boot, kafka-python integration.

  • Redis Streams, pub-sub queus, pyhton Celery, nodejs Bull task managers.

• gRPC Distributed Microservices: low latency distributed gRPC systems, REST gateway endpoints(Envoy proxy, Gin HTTP, etc).

• Programming Languages: expert in NodeJS/React, Python3. Express, Prisma/GraphQL, python LLM frameworks such asLlamaIndex, Langchain utilities, Asyncio, polars/PyTorch/NumPy, FastApi/Flask/SQLAlchemy/Jinja2, Celery. C++.
  Java(Spring Boot, Kafka, etc), Maven, Scala.

• Frontend and Mobile Development: expert in NodeJS/TypeScript ecosystem, NextJS 13, React, React Native, Expo framework, frontend(MaterialUI, Mantine, Apache Echarts, etc), Apollo/GraphQL, experience with Ruby on Rails, python Django/Streamlit.

• Databases: SQL(MySQL, PostgreSQL, Spark SQL/Trino connectors), MongoDB.

• Big Data, Distributed databases: Apache Iceberg/Delta Lake Layer/Hive Metastore/S3 backends, Clickhouse. Elasticsearch, Manticore(Sphinx) for low latency fulltext Search and Ranking.

• Security: Knowledgeable in security practices and tools, including security scans, monitoring, virtualization,VirtualBox, Vagrant, VPN/Wireguard, iptables configuration and routing, TCP/IP analysis.

• HTTP/REST: NginX(lua), Apache, PHP tuning, SSL, OpenAuth, Authelia, Keycloak, OpenAPI/Swagger/Codegen.

• Infrastructure monitoring/reporting: Systemd, Graphite/statsd, Promeheus, Apache Superset, Grafana, ELK stack.