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MobiDev

Oleksii M. logo

Oleksii M.

Available now

Fullstack JS Engineer @ MobiDev

Mid-level
Seniority
GMT+01:00, La Zenia, Spain
Location & Timezone
$70 - $100/hr
Average Hourly Rate
English, Ukrainian
Languages

Top skills

Node.js
TypeScript
nest.js
PostgreSQL
AWS
Angular
Express.js

About

Full-stack JavaScript engineer with 4+ years of experience delivering features end to end, from backend APIs to frontend components. Core stack: Node.js, Nest.js, Express, TypeScript, PostgreSQL, Redis, AWS. Built platforms with multiple interconnected modules, including a CRM with financial operations and profitability analysis. Works with Swagger, Docker and Sentry, and optimized performance of a live SaaS platform.

Top skills

Verified by Pangea.ai due diligence

Top SkillsCurrent UsageSeniority
Node.js
25%4 years
TypeScript
20%4 years
nest.js
20%3 years
PostgreSQL
10%3 years
AWS
10%3 years
Angular
10%4 years
Express.js
5%4 years

All skills

Roles and tools, to bring ideas to life and create meaningful experiences

SaaS
CRM
Web Apps

Professional experience

Explore a curated selection of projects highlighting Oleksii M.'s expertise and experience. Each project aims to showcase challenges, solutions, and the final outcome, along with the tools and technologies used.

Under MNDA
Cross-Platform Energy Consumption Management App — Fullstack developer
Mobile-first app for an energy retail company in North America and Europe that helps customers track, forecast and manage their energy consumption to lower costs. The app now serves over 1.5 million customers. MobiDev's team of 5 to 9 experts handled discovery, product design, a serverless backend and integration into the client's ecosystem: a shared Identity Service used by 10+ products, unified registration and authorization across regions (about 40 screens, including legacy account number formats), real-time data sync across devices, SNS/SQS push notifications, a feedback API and automated deployment to six environments. MobiDev supported the product for 5 years.
Backend Development
Frontend Development
Mobile Development
Node.js
Express.js
+6

Cross-Border SaaS Marketplace for Wineries project preview
Winejump
Cross-Border SaaS Marketplace for Wineries — Full-stack Engineer
SaaS marketplace that lets local wineries sell directly to consumers across Europe without middlemen. MobiDev's team of 5 built the product from tech strategy to launch, with the first version ready in about 1.5 months. The platform calculates final prices for 9 delivery countries, factoring in taxes, customs fees and shipping costs, and automatically generates tax and shipping documents for sellers. Third-party integrations: Stripe 3D payments, UPS API, Ipdata, Cloudinary, DropInBlog. The team later added Scan & Shop, which turns a winery's tablet into an in-store catalog with checkout. The marketplace grew from about 150 to over 1,500 wineries by 2021, replacing €10+ per bottle middleman margins with a flat €1 fee.
Node.js
nest.js
React.js
PostgreSQL
Redis
+5

Under MNDA
Retail Deal Discovery MVP for a US Startup — Full-stack Engineer
B2C product for finding and tracking retail deals in local shops, built for a US startup under market pressure and a tight budget. MobiDev delivered the MVP in 3 weeks for a $10K budget using its AI-as-a-Partner approach. Features: deal discovery and browsing, advanced search and filtering, categories, store integration and navigation, personal deal management, notifications and alerts, location services and analytics. The client presented the MVP to investors and secured its first funding round. Reported development speed-up: 2.57x.
Frontend Development
React.js
TypeScript
Golang
Supabase
+1

Preferred tools

View the preferred tools and apps used by Oleksii M. to assess compatibility and alignment.

Confluence
Confluence
Figma
Figma
Github
Github
Google Drive
Google Drive
Google Chat
Google Chat
Google Keep
Google Keep
Google Meet
Google Meet
Jira
Jira

Career highlights

Discover Oleksii M.’s professional journey, including employment history, certifications, and educational background.

Middle JS Engineer
Middle JS Engineer
MobiDev⸺2025 - pressent

Testimonials

Anonymous

MobiDev

Verified Testimonial

“I had the pleasure of working with Oleksii, and I can wholeheartedly recommend him for any project. He is a well-rounded engineer who combines strong technical skills with exceptional communication and a proactive attitude. Oleksii is reliable, fast, and detail-oriented, ensuring tasks are delivered on time and to a high standard. What really stands out is his curiosity and initiative. He consistently asked insightful questions to fully understand the problem and wasn’t afraid to suggest improvements or take ownership when needed. Beyond his skills, Oleksii’s positive energy and professionalism made him a joy to work with. He approaches every challenge with a smile, making collaboration seamless and enjoyable. Any team would be lucky to have Oleksii, he’s the kind of engineer who elevates not just the product but also the people around him.“

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