/ NODE.JS / NEXT.JS
Freudika
A full-featured online therapy platform connecting clients with psychologists through integrated video sessions, scheduling tools, secure payments, and personalized user dashboards.
EVRI.CO
Vision&Innovation
Empathy. Vision. Results. Innovation.
Empathy. Vision. Results. Innovation.
Empathy. Vision. Results. Innovation.
Empathy. Vision. Results. Innovation.
Empathy. Vision. Results. Innovation.
Empathy. Vision. Results. Innovation.
Empathy. Vision. Results. Innovation.
Services
evri.co specializes in delivering top-tier web and software solutions. With a foundation built on Unbounded Aspirations
Web Application Development
We build web applications that are easy to use and simple to scale.
Working with modern technologies, we focus on adaptability, performance, and security.
We design interfaces that truly help users solve real-world problems.
- Tailored solutions for your business logic
- Smooth experience across all devices
- Integrations & APIs
- Ongoing support and growth
Software Development
We develop reliable software for business — from desktop to cloud-based solutions.
We dive deep into your processes, propose clear architectural choices, and stay focused on results.
- Web, desktop, and mobile applications
- External system integrations
- Scalable infrastructure
- Easy-to-use interfaces
Mobile Development
We create mobile apps that are intuitive, purposeful, and pleasant to use.
We consider real usage scenarios and choose the right technology — from MVPs to full-featured products.
- iOS, Android, and cross-platform
- UX-first approach
- Iterative development
- Release and long-term support
Outsourcing & Support
We can join your team or deliver fully managed solutions.
Our support includes maintenance, testing, updates, or augmenting your existing team.
- Full-cycle outsourcing and team augmentation
- 24/7 support
- Standby/reserve teams
- Transparent process and clear communication
Projects
/ .NET / VUE.JS
Paymax
The website "PayMax" appears to be focused on vending machine business solutions in Ukraine.
About us
Founded in 2016, evri.co embarked on a journey to redefine the digital landscape. With a vision rooted inUnbounded Aspirations...
Team
Eugene Riaboshtan
Managing Partner
Artem Kyslyi
Frontend developer
Alex Dolhopolov
Growth & Product Owner
Olha Melkozerova
UI/UX Designer
Dmytro Yakunin
Backend developer
Iaroslav Oseledko
Frontend developer
Vlad Kushniruk
UI/UX Designer
Vlad Maksymenko
Backend Developer
Company mission and values
At evri.co, our mission is to bridge the gap between digital aspirations and tangible results.
We strive to transform ideas into innovative solutions that not only meet but exceed our clients' expectations. Through our Unbounded Aspirations, Universal Adaptability, and Ultimate Algorithms, we aim to empower businesses, big and small, to thrive in the digital age.
Through our mission and values, evri.co is not just about creating digital solutions; it's about creating a positive impact, driving growth, and setting new standards in the digital world.
Engineering Success Stories
Case study 01
High-Load Telemetry System
Full System Rebuild & Architecture Overhaul
We rebuilt a high-load telemetry platform from the ground up to handle massive traffic, reduce infrastructure costs, and ensure reliable operation at scale.
BeforePrevious System
AfterRebuilt System
~10 MB/s
peak load
Incoming Traffic
~600 ms
average
API Response Time
~640 USD
per month
Infrastructure Cost
Baseline
limited capacity
Throughput
AfterRebuilt System
Up to 60 MB/s
stable under load
6×
increase
1–100 ms
average (no network delay)
~5–6×
faster
~96 USD
per month
~85%
reduction
6× Higher
than previous system
6×
increase
Result
A scalable telemetry platform capable of handling 6× higher throughput, up to 60 MB/s traffic, while reducing infrastructure costs by over 85% and maintaining 100% uptime during deployments.
ARCHITECTURE CHANGES
Full Technology Rebuild
PHP-based platform completely redesigned and rebuilt in C#.
In-Memory Processing
Operational workloads moved from the database into high-performance in-memory structures.
Database Role Simplification
Database used only for historical data, analytics, and backups.
Zero-Downtime Deployment Layer
Proxy subsystem introduced to buffer telemetry traffic during service restarts.
Automatic State Recovery
Application state restored automatically after deployment within 36 seconds.
Infrastructure Optimization
Architecture redesigned to maximize throughput while reducing infrastructure costs.
Result
A scalable telemetry platform capable of handling 6× higher throughput, up to 60 MB/s traffic, while reducing infrastructure costs by over 85% and maintaining 100% uptime during deployments.
Reviews
CEO“DESIGNERDEUTSCH”
I was pleasantly surprised by the collaboration with this professional and efficient team. The cooperation demonstrated ...
CEO“Virón”
Working with the evri.co team on our Shopify e-commerce project was a real game-changer. Their expertise in e-commerce a...
Founder“IIDP”
We’ve been working with the evri.co team for years, and their deep understanding of mental health and digital technology...
Creative Director“Eskimi”
The evri.co team is exceptional when it comes to web development projects. Fast, analytical, and always ready to find th...
CEO“ARA8”
We have implemented several projects in the automotive and transport services sector with evri.co – and we are completel...
CEOSONO Cats
evri.co supported us in creating several landing pages and corporate websites – from the initial concept to the go-live....
CEOSouthwalk
Working with evri.co was professional and pleasant right from the start. The team brings technical know-how, creative id...
Research and Visions
21.08.2025
Rich Media Banners
Rich Media banners are interactive and animated ad formats that stand out compared to traditional static ads.
14.07.2025
Psychoanalytically Oriented Psychotherapy Online in the Oncological Context
Psychoanalytically Oriented Psychotherapy Online in the Oncological Context
How online counseling helps cancer patients and their loved ones cope