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Sergii H. UX/UI, Mobile and SaaS Platforms

My name is Sergii H. and I have over 9 years of experience in the tech industry. I specialize in the following technologies: User Experience Design, UX Wireframe, UX & UI, Figma, User Interface Design, etc.. I hold a degree in Other, . Some of the notable projects I’ve worked on include: UX Audit & UX/UI Redesign: SaaS for Oil & Gas Traders and Marketers, Custom ERP Design for Global Hospitality Procurement Leader, UX/UI for Analytics SaaS: Equipment Monitoring & Energy Compliance, 🌿MVP UX/UI Design for white-label SaaS: from launch to Seed Round, Redesign of B2B SaaS Website to Improve UX, Trust and Conversions, etc.. I am based in Lisbon, Portugal. I've successfully completed 33 projects while developing at Softaims.

I possess comprehensive technical expertise across the entire solution lifecycle, from user interfaces and information management to system architecture and deployment pipelines. This end-to-end perspective allows me to build solutions that are harmonious and efficient across all functional layers.

I excel at managing technical health and ensuring that every component of the system adheres to the highest standards of performance and security. Working at Softaims, I ensure that integration is seamless and the overall architecture is sound and well-defined.

My commitment is to taking full ownership of project delivery, moving quickly and decisively to resolve issues and deliver high-quality features that meet or exceed the client's commercial objectives.

Main technologies

  • UX/UI, Mobile and SaaS Platforms

    9 years

  • User Experience Design

    2 Years

  • UX Wireframe

    1 Year

  • UX & UI

    4 Years

Additional skills

  • User Experience Design
  • UX Wireframe
  • UX & UI
  • Figma
  • User Interface Design
  • Journey Mapping
  • Software Design
  • User-Centered Design
  • Mobile App Design
  • Usability Testing
  • SaaS
  • Prototyping
  • UX & UI Design
  • Web Design
  • User Experience
  • App Development

Direct hire

Potentially possible

Previous Company

Talkdesk

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Experience Highlights

UX Audit & UX/UI Redesign: SaaS for Oil & Gas Traders and Marketers

The platform connects marketers, traders, and logistics teams across global energy markets. The 1st step - a full UX Audit uncovered 4 critical issues, which were implemented one by one immediately to improve the UX/UI of SaaS. As a result of the step-by-step redesign, the company added 8 new accounts in the 2d half of 2024. These included natural gas and NGL midstream asset owners, producers, and several trading companies.

Custom ERP Design for Global Hospitality Procurement Leader

a custom ERP system for FEBC International — a global consultancy specializing in FF&E and OS&E procurement for 5-star hotels and luxury hospitality brands. With over 25 years of experience, FEBC has delivered 400+ projects across 40+ countries, working with top-tier hotel chains and developers. • Platform for 7 user roles, incl. suppliers, buyers, logistics, finance, and management • 500+ screens across web and mobile • 10 clickable prototypes incl. mobile apps and AR/VR spatial planning tools • 15+ flows, incl. digital tendering, logistics sync, invoice tracking, and reporting

UX/UI for Analytics SaaS: Equipment Monitoring & Energy Compliance

BalanceCX, a legacy SaaS platform developed by EEI — Engineering Economics, Inc., a U.S. leader in energy consulting and commissioning since 1984. It's a cloud SaaS for real-time equipment tracking and building performance, used by hospitals, malls, and universities across the U.S. 🎯 Goal: help Commissioning Agents detect HVAC, lighting, and energy issues early - while contractors are still on-site. ✅ Result: better task flows, faster issue detection, and 2024 wins like Wexner Medical Center and Washington & Lee University.

🌿MVP UX/UI Design for white-label SaaS: from launch to Seed Round

HomeZero is a climate tech startup from
the Netherlands that aims to accelerate
the transition to energy-efficient. RoadMap + MVP + Branding + Graphics + User Testing Homezero 2.0 - 3-year cooperation! This design is not just functional—it's engaging, offering Homeowners and Businesses a stress-free, enjoyable experience 🚀.

Redesign of B2B SaaS Website to Improve UX, Trust and Conversions

Trilogy Energy Solutions is a leading provider of ETRM and ERP solutions tailored to the challenges of the modern energy market. Their core product – TIES (The Integrated Energy Solution) – is used by a wide range of clients in the oil and gas industry. — Ran a full UX audit and rebuilt the structure around real product value and user needs — Made the product visible, clearly showing what it looks like and how it works — Enhanced credibility: reworked testimonials, added subtle trust signals — Balanced design: corporate-level clarity without feeling dull

Education

  • Serendipity

    Other in Practical Google analytics course

    2017-01-01-2017-01-01

  • Kharkiv National University of Radioelectronics

    in

    2001-01-01-2006-01-01

Languages

  • English
  • Russian
  • Ukrainian