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Microsoft .NET · C#
Ukraine Kyiv, Ukraine
3001
 51  0
  • ADO .NET
  • C\CPP
  • Design Patterns
  • Entity Framework
  • Google api
  • HTTP
  • json
  • Microsoft .NET
  • Microsoft Access
  • MVVM
  • Parsing
  • Serialization
  • Sockets
  • SQL Lite
  • T-SQl
  • tcp
  • UDP
  • Windows Communication Foundation (WCF)
  • Windows Forms
  • Windows Presentation Foundation (WPF)
  • xaml

Web programming · PHP
Ukraine Zaporozhe, Ukraine
555
 11  0
  • apache2
  • dns
  • freebsd
  • iptables
  • linux server administration
  • Mikrotik
  • nginx
  • PHP
  • routing
  • tcp-ip
  • VPN

Dmitro — techsd
Embedded systems and microcontrollers · Geographic information systems
Ukraine Kharkiv, Ukraine
394

I lived in the wonderful city of Kharkiv. I love the scientific method of learning Richard Phillips Feynman Skills Git, RTOS, Networking, HTML, CSS, Apache, Linux, API, pentesting, CI/CD, Python, Kubernetes, TCP/IP, Docker, Metasploit, Qt5, Reverse Engineering, AWS, DevOps, Nginx, Ubuntu, DNS, VPN, Jenkins, Postman, JSON, Terraform, Jira, GCP, PostgreSQL, Gitlab CI, Penetration, REST API, Network administration, VirtualBox, System Administration, YAML, SOAP, computer hardware, Django, HAProxy, load balancing, XML, Windows, Mikrotik, DHCP, RDP, Wordpress, bash, Blockchain, Cryptocurrency, Embedded interfaces, microcontroller PIC Atmega, ARM MCU embedded, API orchestration, Architect database, Android,
  • avr
  • breakjail
  • C/CPP
  • docker
  • kubernetes
  • Metasploit
  • PCB
  • reverse engineering
  • stm32

DevOps · System administration
Ukraine Kharkiv, Ukraine
I can manage with anything. If I don't know how to do something, I'll learn and complete it.
318

- I am a System Engineer with more than 20 years of extensive experience in systems design, administration, support including 5 years working as a DevOps Engineer. - My expertise encompasses effective planning, design, installation, configuration, maintenance, and optimization of IT systems for achieving high availability and performance. - I am skilled in working with cloud computing platforms such as Amazon Web Services, creating and configuring the infrastructure using IaC tools, and working with CI/CD process and source control tools. - Additionally, I have experience as a Chief Technology Officer and Head of IT Department with 6 immediate subordinates and general team of 12 employees. It helped me to develop good planning and organizational skills, so I am confident working independently or as part of a team. - work as an individual entrepreneur. CLOUDS - AWS: EC2, IAM, AMI, S3, VPC, SubNets, SecurityGroup, ACL, Routing, NAT GW, InternetGW, BastionHost, VPN, Route53, Lamda, ALB, ELB, Auto Scaling Group, Parameter Store, SNS, SQS, WAF, CloudFront, CodeCommit, Beanstalk, EKS, Kinesis, Redis OS FreeBSD, Linux (Ubuntu, CentOS, AWS Linux) VIRTUALIZATION Docker, Docker-Compose, Kubernetes ( K8s ), KVM, VMware ESXi MONITORING Nagios, Zabbix, Prometheus MySQL optimization, clustering (replication setup, configuration, recovering) IaC, Config control Terraform, SaltStack, Ansible Dev auto tools : Jenkins (groovy scripting), GitLab (CI/CD, configuring gitlab-ci.yml) Version control : Git Scripting : Bash, Python NETWORKING - NET : TCP / IP stack. CARP - Routing : OSPF, BGP - CISCO : vlan, trunk, ports aggregation LACP, static routes configuring, acl. FAILOVER RAID, link aggregation; redundant channels and STP, net interfaces aggregation, load balancing and traffic distribution at various levels of the OSI model (CARP, BGP, OSPF, Nginx, HProxyServer, CDN GeoDNS) TELEPHONY VoIP server Asterisk integrated with PBX (with PRI) PBX - Samsung iDCS 500 (PCMMC OfficeServManager 3.75) programming, cross patching and laying of SCS. Mitel 3300, wifi Mitel phones SATELLITE & GSM Seatel ACU, iDirect modem, FB250, Iridium, Internet/telephony/TV via satellite systems and a GSM operator. Misc ELK Stack (Kibana), Jira, FireWall (ipfw, pf, iptables), VPN (OpenVPN, mpd5, netgraph), Samba, Postfix, Exim, Apache, Nginx, php-fpm, FTP
  • Amazon AWS
  • ansible
  • DevOps engineer
  • docker
  • docker-compose
  • GCP
  • Gitlab-CI
  • jenkins
  • k8s
  • kubernetes
  • Networking
  • SaltStack
  • System Administrator
  • terraform

C and C++ · Go
Ukraine Kyiv, Ukraine
204
  • C/CPP
  • devExpress
  • docker
  • golang
  • network
  • Parsing
  • postgresql
  • QT Framework
  • R SQL
  • TCP/UDP/HTTP/RTCP/RTP
  • VCL

Python · DevOps
Germany Frankfurt am Main, Germany
186

My name is Yurii and I'm Engineer with more than 5 years of experience. Get started with Python and modules: PyTest, Flask, Jinja2, Blueprint, wtforms, werkzeug.security, PyGitHub, Regular expression(re), Numpy, Pandas, Matplotlib, Openpyxl, csv, os, sys, Pdf, Docx, Pygame, Turtle, SQL-sqlite3. I suggest you study - Cource Data Structures and Algorithms in Python with presentation and practical exercises in Python. Test Automation in DevOps - you will learn UnitTest, Pytest, API Testing from scratch. You will go all the way through from complete python beginner to a professional automation test developer. Pytest incorporated many features that makes testing way easier and organized. You will be able to write automated tests, fixtures, built-in plugins and installable libraries. In our Data Science with Python course/program, you will gain the fundamental skills necessary to work with data, from cleaning and analysis to visualization. This comprehensive learning path is designed for individuals who are passionate about data science and want to address real-world problems using Python. Key Learning Objectives: Python for Data Science: You will learn how to use Python as a powerful tool for data manipulation, analysis, and visualization. Data Cleaning: Gain expertise in preparing and cleaning datasets for analysis, ensuring data quality. Data Analysis: Master data analysis techniques to extract valuable insights and make data-driven decisions. Data Visualization: Learn to create compelling visualizations to effectively communicate your findings. Hands-On Projects: Apply your skills to real-world data problems through guided lectures and practical labs. Solidify Your Python Skills: This learning path will strengthen your Python programming skills, which are essential for data science work. Linux -Linux is a widely used operating system that powers a significant portion of servers, embedded systems, and supercomputers. By learning Linux, you gain valuable skills that are in high demand in the IT industry. Command Line Proficiency: Linux is known for its command-line interface (CLI), which provides powerful tools and utilities for system administration, automation, and scripting. Learning Linux helps you develop command-line proficiency, enabling you to perform complex tasks efficiently and automate repetitive tasks. Git - Version Control, Branching and Merging, GitHub, GitLab. Git is a powerful version control system that allows you to track changes to files and collaborate with others effectively. Learning Git enables you to manage versions of your code, revert changes if necessary, and easily collaborate on projects with multiple contributors. Cybersecurity - VMware, Oracle VM VirtualBox, GRC, IP Forwarding, LDAP Linux, Nesus Kali, WireShark - basics nmap, WireShark HTTP and Netcat, WireShark Hunt and Exploration, WireShark_TCP and HTTP, Port-Mirroring and IDS, Linux CRON bash scripting cron-jobs, Netcat and SSH Traffic Analysis via Wireshark nmap, Snort, Vayos, Vulnerability Scanning with Nessus, Python and Math, vyos Firewall basics vayos ufw nmtui change IP, HTTP Intercept Proxies Kali OWASP, ZAPROXY, Mutillidae, Linux LAMP Setup CENTOS, ARPSpoof MITM, LVM and_Linux_Processes, OpenVPN aws, SQL Injection and XSS, System Hardening, Linux Shell Aliases, Certificates, Extended Attributes Linux, Linux CLI Security Python idle ssh group Chroot Jail, Socks 5 Proxy, SQL Injection, Windows, Configure DHCP and DNS vyos ssh, Linux Filesystems Samba, Linux Bash, Linux Log Mess, Python Regular Expression, Splank Install, Splunk Getting Data into the SIEM, Splunk Asset Discovery, Splunk Dashboards, Splunk Reporting, Splunk Alerting CRON, Splunk Better Data, Splunk Advanced Notifications, Encrypt Decrypt, Drivers, Splunk User and Process Monitoring, Splunk Constant Configuration, Wannacry, Cowrie Honeypot, Windows-Linux Data Visualization, Network Visualization, Splunk Advanced Configuration, Vulnerability Scanning, Incident Response, Spoofing and Threat Hunting, Digital Forensics. Java - (Basic language constructs, Arrays, strings, methods), (Java OOP Classes, constructors, methods, Inheritance, interfaces, enumerations, generics, wrapper classes), Maven .NET C# (Basic language constructs, Integers Static Methods, Bools and Logic Operators, Conditional Statements, Exceptions, IterationStatements, Arrays, Strings)

C and C++
Ukraine Poltava, Ukraine
185
  • C/CPP
  • Multithreading
  • MySQL5
  • OSM(OpenStreetMap)
  • Qt5
  • R SQL
  • TCP/UDP
  • winAPI

System programming · Application programming
Ukraine Kharkiv, Ukraine
170
 2  0
  • TCP/UDP/HTTP/RTCP/RTP

Testing and QA · Testing and QA
Ukraine Odessa, Ukraine
146
  • Apache JMeter
  • Charles Proxy
  • GitHub
  • intern QA
  • Junior QA Engineer
  • Postman
  • QA Engineer
  • tcp-ip
  • terminal

Python · Machine learning
Netherlands Netherlands
71

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.