IT infrastructure, networks and DevOps for business
I'm Alexei Sergeev, an engineer with 15 years of experience. I design, implement and support IT infrastructure for small and medium-sized businesses.
Sound familiar?
The network drops for no clear reason. The server was set up “somehow”. Users are the first to notice outages. All of this can be fixed, without heroics.
Unstable network
Drops, packet loss and slowdowns without a clear cause.
A server set up “somehow”
Manual settings that nobody can reproduce.
Users notice outages first
No monitoring or alerts.
No backups
Or nobody has ever tested a restore, so data can be lost in a failure.
Услуги
What I do
From networks and Wi-Fi to servers, open-source services and internal development.
Networks and network infrastructure
I design and configure networks that behave predictably, are documented and ready to grow.
Learn more →Corporate Wi-Fi
A wireless network with planned coverage, separated corporate and guest access and stable roaming.
Learn more →Servers and DevOps
Server infrastructure that can be updated, restored and observed without heroics.
Learn more →Open Source for business
I implement open-source tools for collaboration, mail, monitoring and single sign-on — with migration and support.
Learn more →Development and automation
Internal web services, integrations and automation of routine operations with Python/Django.
Learn more →IT outsourcing
Maintenance of your company's IT infrastructure for a fixed monthly fee within an agreed scope.
Learn more →Process
How I work
Six steps from the first message to a working solution. No surprises halfway: you know in advance what will be done and in what order.
- Step 01
Discussing the task
You describe the situation and the goal; I ask clarifying questions.
- Step 02
Assessment
I review the current infrastructure or requirements and record constraints and risks.
- Step 03
Proposal
I propose a solution, scope of work and rollout order. Pricing follows the assessment.
- Step 04
Implementation
Work is carried out according to the agreed plan with checkpoints.
- Step 05
Documentation and handover
I document the solution, hand over access and explain operations.
- Step 06
Support
Further support and development of the solution if needed.
Maintenance
IT outsourcing
Infrastructure maintenance for a fixed monthly fee. The scope is individual and defined after reviewing your infrastructure.
- Monitoring and routine maintenance
- Backups
- Incident handling
- Infrastructure development
Why me
Why me
in IT infrastructure, networking and development
Experience
15 years in IT infrastructure, networking and development.
Engineering approach
Assessment and a plan first, changes second.
Documentation
Diagrams, configs and instructions stay with you.
Support
I help maintain and evolve the solutions I build.
About me
About me
I'm an independent engineer. I work directly with clients - from discussing the task to implementation and support.
Technologies
Technologies
- MikroTik
- CAPsMAN
- VLAN
- WireGuard
- IPsec
- OSPF
- BGP
- 802.1X
- RADIUS
- Linux
- Docker
- Docker Compose
- Nginx
- PostgreSQL
- Prometheus
- Grafana
- Zabbix
- GitLab CI
- Ansible
- Python
- Django
- Celery
- REST API
- Nextcloud
- Mattermost
- Keycloak
- Postfix
- Dovecot
Заявка
Let's discuss your task
Describe your situation - I'll review it and get back to you. The price is determined after assessing the task / infrastructure.
- 01
Discussing the task
You describe the situation and the goal; I ask clarifying questions.
- 02
Assessment
I review the current infrastructure or requirements and record constraints and risks.
- 03
Proposal
I propose a solution, scope of work and rollout order. Pricing follows the assessment.