Stan Kolesnik

Stan Kolesnik

Software Engineering & Development Technical Architecture
stanislav_kolesnik@hotmail.co.uk

About Me

A solutions-focused Mobile Software Architect & Engineer, expert in designing and implementing cutting-edge cross-platform mobile solutions to drive competitive advantage. Key strengths include: combining more than 15 years’ of mobile experience in a wide-range of sectors with a hands-on leadership approach, to devise enterprise-grade mobile capabilities; applying a broad spectrum of strong technical knowledge to deliver ‘best in class’ mobile solutions that meet both technical requirements and business objectives; adept in defining software quality controls, including architectural and design principles, to engineer robust, scalable, and maintainable mobile applications that consistently exceed expectations; and providing an effective communication conduit between stakeholders, engineers, to give transparency, generate synergy, and create an environment of trust, respect, and co-operation.

Education

Donbas State Machine-building Academy, Kramatorsk, Ukraine

Bachelor's Degree in Computer-Aided Design

Machine-building College, Kramatorsk, Ukraine

Specialist Degree in Electro-Mechanical Engineering

Work & Experience

Slimming World November 2024 - October 2024

Mobile Technical Architect

Slimming World is the UK's leading weight loss organisation offering personalised, community-driven solutions. Engaged to define the front-end high-level architecture to strategically re-engineer Slimming World’s core product, enhancing reliability, scalability, and user experience while supporting business migration to Salesforce and addressing hardware obsolescence. • Designed multi-app front-end architecture patterns for React Native and advised on device platform selection, ensuring alignment with long-term strategic direction. • Established offline capability options, inter-device communication patterns, backend integration layer patterns, including integration APIs for Salesforce via the Heroku platform. • Delivered high-level design of digital member card solution with NFC-cards and Apple/Google wallet integration to improve user experience, security, and operational simplicity. • Enforced security standards and best practices, providing technical governance, feasibility assessments, and comprehensive documentation to support strategic planning and maintainability. • Engaged closely with stakeholders across business, product, and technical teams to ensure clarity, alignment, and effective execution of architectural decisions to uphold design quality.

iProov Ltd March 2023 - December 2024

Mobile Software Architect & Engineer

iProov is a global technology company and world leader in biometric verification; it enables verification that an individual is the right person, a real person, and that they are authenticating right now. • Engaged to lead the architectural overhaul of the California Department of Motor Vehicle's mobile app, leveraging Flutter technology to ensure seamless performance across iOS and Android platforms. • Orchestrated the design process, ensuring a user-centric approach while integrating complex functionalities, e.g. web HTML content embedding, and iProov biometric identity verification. • Engineered adaptive layouts to guarantee optimal user interaction across a variety of devices, including phones, tablets and desktops, supplying the diverse needs of California DMV's mobile user base. • Implemented robust security measures, including iProov biometrics, to fortify the app against unauthorised access and protect sensitive information in line with stringent regulatory standards. • Collaborated closely with cross-functional teams to ensure alignment with project milestones, and fostered a cohesive development environment to ensure deployment of the revamped mobile client.

Vanquis Bank February 2021 - February 2023

Mobile Technical Architect

Vanquis Banking Group is an FTSE All Share company and a leading specialist bank; it provides tailored products and services to 1.75 million UK customers through Vanquis, Moneybarn, and Snoop. • Engaged to spearhead the technical design and delivery of a cutting-edge mobile banking application utilising Flutter technology, to ensure adherence to architectural best practices and provide continuous design oversight throughout the project lifecycle. • Established an Architectural Runway for the Flutter project, devised comprehensive low-level designs, architectural principles, and created design patterns to support robust app architecture. • Facilitated scalability, modularisation, white-labelling capabilities, along with code reusability across multiple apps; and enhanced development velocity across multiple teams. • Played a pivotal role in the recruitment process, and oversaw quality of suppliers. • Conducted an exhaustive analysis of the existing Xamarin app's current state, and identified areas for improvement and strategic enhancements. • Provided SME input to launch the Technical Design Authority within the company, and ensured alignment of technical decisions with overarching business objectives and industry standards. • Delivered expert technical architecture support for the seamless integration and implementation of various payment technologies, including Card Payment, Apple Pay, Google Pay, and 3DSV2. • Leveraged a diverse set of technologies, including Flutter, Dart, Xamarin Forms, MAUI, and .Net Core 5 APIs, along with integrated third-party services (e.g. WSO2, Realex, Fiserv, and Adobe Analytics) to deliver robust and feature-rich mobile solutions.

Mobile Software Architect & Engineer September 2020

Mobile Software Architect & Engineer

Fundsmith is a London-based investment management company; it deploys long-term, buy-and-hold investment philosophy to own concentrated portfolios of quoted businesses that will compound in value. • Engaged to architect and implement a Xamarin Forms mobile app for iOS and Android platforms. • Seamlessly extended access to client’s existing web client through a user-friendly mobile interface. • Encompassed robust security authentication leveraging biometric technology and ensured user privacy. • Integrated remotely configurable features, for real-time adjustments to reduce maintenance overhead. • Provided ad-hoc maintenance and support for the mobile application, ensured uninterrupted operation, resolved technical issues, and incorporated user feedback to drive iterative improvements.

Leeds City Council July 2019 - November 2020

Mobile Solutions Architect & Developer

• Engaged to design and implement critical components of the new Corporate Mobile Platform for LCC. • Created a platform to enable the council to develop and deploy mobile apps for complex digital forms. • Crafted Azure-based .Net Core Restful APIs and reusable Xamarin Forms mobile app SDK, to facilitate seamless data capture functionalities on Windows UWP and Android platforms. • Ensured interoperability and scalability of the platform, optimised resource utilisation, and minimised development overheads. • Undertook a leadership role coordinating the architecture, UX/UI design, and hands-on development efforts for the first app aimed at automating the Social Care Financial Assessment process. • Conducted meticulous planning, iterative prototyping, and collaborative execution, to deliver a user-centric solution that improved operational efficiency and service delivery within the council. • Provided Developer mentoring and guidance, imparted industry best practices and technical expertise, and contributed to the team’s success.

Skills/ Technologies

Architecture Design and Development
Flutter
React Native
MAUI
Tech Lead
Mentoring
Industry Standards
Best Practices
AI-accelerated Design
AI-accelerated Coding & Testing
AI-accelerated Testing
Security Implementation
Multi-skilled Adaptability
Mobile Platform Selection
CI/CD
MVVM
MVI
MVU
Performance Optimisation
Android Development
iOS Development
RESTful APIs
Azure Services
.Net
SOLID Principles
Layered Modular Architecture
White Labelling
App Factories
Offline Data & Sync
Framework Development
SDK Development
UI Theming
MDM
Dart
C#
Swift
Kotlin
SQL Databases
Azure SQL
Cosmos DB
Postgres SQL
MS Entity Framework
SQLite
OAuth 2.0
OIDC
Security Protocols
Biometric Authentication
Figma