Олександр

Oleksandr Soltys
Senior Software Engineer

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Senior Software Engineer with 7+ years of experience delivering web and cross-platform products

from concept to large-scale production. My path started with hands-on front-end implementation

(forms, UI improvements, CMS-driven pages) and grew into owning architecture, driving

modernization initiatives, and delivering business-critical outcomes across international markets.

I’ve contributed across multiple domains — e-commerce, gaming, mobility, travel, and enterprise

SaaS — consistently combining product thinking with strong engineering execution. As I progressed

from junior to middle roles, I helped rebuild applications from scratch, delivered full redesigns,

implemented new functionality, and improved legacy systems through focused refactoring. These

efforts supported successful launches in Europe and the USA, attracted key customers, and

contributed to new investment momentum.

In senior roles, I took ownership of large-scale front-end architecture using React.js and Next.js, led

migration to modern platform patterns (App Router, SSR), and designed scalable GraphQL and

Headless CMS integrations. I built reusable component systems and page templates that accelerated

delivery, implemented CMS webhooks with Azure Functions for automated content-related updates

(robots.txt, manifest, sitemap), and delivered localized platform versions across 18 countries. I also

introduced an analytics-agnostic tracking solution, improved SEO/performance foundations, and

optimized user journeys to support stronger conversion outcomes.

I work effectively in cross-functional teams, partnering with product, design, backend, and business

stakeholders, contributing to planning and refinement, and supporting engineering quality through

code reviews and maintainability-focused decisions. My core focus is building scalable, reliable

systems that create measurable product impact.

collaboration TypeScript
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CSS design system
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JavaScript GraphQL
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Next.js MobX
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proactiveness software architecture
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React.js software design
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Redux RxJS
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Skills

TECHNICAL: design system, software architecture, software design, CSS frameworks, front-end
development, CICD, client-server architecture, code profiling, code quality, code review, cross-platform
software, data architecture, end-to-end testing, headless CMS, internationalization and localization, IT
architecture, OOP, performance improvement, refactoring, reverse engineering, software development,
Styled Components, system testing, design patterns, event-driven architecture, functional
programming, microservices, OOAD, Micro Frontend

CROSS FUNCTIONAL: web development

BEHAVIORAL: collaboration, proactiveness, communication

BUSINESS SOFTWARE: CMS, MapboxSDK, FBSDK

METHODS: Agile, Scrum, Kanban, TDD

TOOLS: Git, NPM, Webpack, Atlassian Jira, Postman

PROGRAMMING LANGUAGES: CSS, JavaScript, TypeScript,, HTML, Sass

FRAMEWORKS: Next.js, React.js, Redux, MobX, Apollo GraphQL, Jest, ChakraUI, enzyme, Jasmine, React
Testing Library, Cypress, Detox, Mocha, React Native, JQuery, Node.js, RxJS

DATABASES: PostgreSQL

PLATFORMS: ContentStack, Joomla, Microsoft Azure Blob Storage, Microsoft Azure Functions, Firebase
Cloud Messaging

NORMS AND STANDARDS: GraphQL, ECMAScript

LANGUAGES: Ukrainian (Native), English (Advanced)

Certifications

Capgemini L0 Aspiring architect • Capgemini • 11/2025 • Expiration date: 11/2035

Capgemini L2 Industry Certification - Life Sciences • Capgemini • 09/2024

Education

Odesa National Maritime University • Bachelor 06/2010
Positions synopsis

Capgemini • Senior Software Engineer • since 03/2021 (5 years and 1 month)
DIGIS • Software Engineer • 06/2019 03/2021 (1 year and 10 months)
Perina-Lux • Associate Software Engineer • 03/2018 05/2019 (1 year and 3 months)

Positions details

Capgemini • Senior Software Engineer • since 03/2021 (5 years and 1 month) • Odesa
As a Senior Engineer, I led architecture modernization, cross-system integration, and engineering quality
initiatives across enterprise-grade platforms, delivering measurable impact in scalability, speed,
SEO/performance, and business conversion.
Applied skills: front-end development, cloud computing, software development, web development

DIGIS • Software Engineer • 06/2019 to 03/2021 (1 year and 10 months) • Odesa
As a Middle Engineer, I contributed across multiple cross-platform products by leading redesign
initiatives, implementing new functionality, modernizing legacy code, and supporting successful
market/business outcomes.
Applied skills: software development, web development

Perina-Lux • Associate Software Engineer • 03/2018 to 05/2019 (1 year and 3 months) • Odesa
On the Retail Online Store project (sleeping goods e-commerce), I contributed as a web developer by
supporting form development, UI improvements, and CMS-based content updates.
Applied skills: web development
 Assignments synopsis

Sonova AG • Senior Software Engineer • 01/2024 to 05/2026 (2 years and 5 months)
Planview(Clarizen) • Software Engineer • 03/2021 to 10/2023 (2 years and 8 months)
NDA • Software Engineer • 02/2020 to 02/2021 (1 year and 1 month)
NDA • Software Engineer • 08/2019 to 02/2020 (6 months)
NDA • Associate Software Engineer • 06/2019 to 08/2019 (3 months)
Perina-Lux • Associate Software Engineer • 03/2018 to 05/2019 (1 year and 3
months)

Assignments details

Sonova AG • Senior Software Engineer • 01/2024 to 05/2026 (2 years and 5 months) • Capgemini
Sonova AG, a leading provider of innovative hearing care solutions, embarked on a project to develop a
comprehensive hearing test and booking system. This system aimed to enhance the accessibility and
convenience of hearing assessments and appointments for users globally. The project leveraged advanced web
technologies and a headless CMS to create a seamless user experience.
Team Size
14
Achievements
• Owned the front-end architecture for a large-scale web platform using React.js and Next.js,
establishing patterns that accelerated feature delivery and improved maintainability.
• Led the migration from legacy Next.js Pages Router to the latest App Router, modernizing
routing, data-fetching patterns, and long-term platform scalability.
• Drove SSR adoption in Next.js, reducing page load latency and strengthening the foundation
for SEO and retention improvements.
• Defined and implemented the application’s GraphQL integration strategy, improving data
access efficiency and reducing unnecessary client-server overhead.
• Designed and delivered a reusable, generic front-end solution around Contentstack Headless
CMS, enabling multi-platform content delivery and reducing implementation effort for new
markets/features.
• Architected and implemented reusable UI components and page templates integrated with
Contentstack, significantly shortening delivery cycles for new pages.
• End-to-end owned CMS webhook integration with Azure Functions, automating robots.txt,
manifest, and sitemap generation to improve operational reliability and consistency.
• Built a plug-and-play, analytics-framework-agnostic tracking solution, decoupling analytics
instrumentation from vendor tooling and simplifying future migrations.
• Resolved complex cross-system integration issues (React.js, Next.js, GraphQL, Contentstack),
improving platform stability and end-user experience.
 • Raised engineering quality standards through code reviews, best-practice enforcement, and
maintainability-focused implementation decisions.
• Delivered localized, configurable platform versions for 18 countries, balancing shared
architecture with market-specific customization needs.
• Partnered with BAs and designers in refinement and planning, translating business
requirements into scalable technical solutions with clear delivery scope.
• Contributed to and optimized the e-booking journey, helping increase lead conversion
through product and UX-focused engineering changes.
• Led technical SEO/performance improvements by identifying bottlenecks, prioritizing high-
impact fixes, and implementing targeted optimizations across the codebase.
Applied skills: GraphQL, ChakraUI, client-server architecture, CMS, code quality, code review, ContentStack,
CSS, CSS frameworks, data architecture, headless CMS, HTML, Microsoft Azure Blob Storage, Microsoft Azure
Functions, Next.js, Node.js, PI planning, React.js, refactoring, Sass, TypeScript

Planview(Clarizen) • Software Engineer • 03/2021 to 10/2023 (2 years and 8 months) • Capgemini
Planview AdaptiveWork (formerly Clarizen) enables PMOs and professional services delivery teams of all sizes
to gain real-time visibility across all their work, automate workflows, proactively manage risks, and deliver
greater business impact.
Team Size
10
Achievements
Implemented new parts of application using ReactJS/MobX. Optimised code base using generally
accepted patterns in order to reduce code complexity and redundancy. Implemented reusable/generic
components for ui component library. Implemented micro front-end applications from scratch using
ReactJS/RxJs.
Supported/updated existing micro front-end applications. Wrote unit/integration/e2e tests using
Jest/RTL/Cypress to prevent regressions. Made deep and efficient code review to achieve better code
quality. Participated in PI Planning sessions/grooming sessions. Communicated with PO/designers/BE
engineers.
Applied skills: Canvas, code quality, code review, CSS, Cypress, design system, enzyme, HTML, Jest, Micro
Frontend, MobX, React Testing Library, React.js, refactoring, RxJS, Sass, TypeScript, Webpack
NDA • Software Engineer • 02/2020 to 02/2021 (1 year and 1 month) • DIGIS
Based on a geolocation system, application allows gamers to explore gaming places near them and join other
gamers for LAN parties and esports competitions
Team Size
6
Achievements
Collaborated on application design and UI improvements; built and launched the second version of the
product from scratch across Europe and the USA markets, contributing to securing a new investment
round.
Applied skills: GraphQL, code quality, code review, cross-platform software, design system, Detox, end-to-end
testing, FBSDK, Firebase Cloud Messaging, internationalization and localization, MapboxSDK, React Native,
Redux, refactoring, Sass, Styled Components, system testing, TypeScript

NDA • Software Engineer • 08/2019 to 02/2020 (6 months) • DIGIS
All-in-one technology platform for car sharing fleet operations. Application bridges the gap between your fleet
data and real-time on-street operations 24/7. To minimize fleet downtime and maximise its usage.
Team Size
5
Achievements
Completed a full application redesign, delivering new user functionality that attract key new customers.
Maintained, supported, and refactored legacy code to improve stability and long-term maintainability.
Applied skills: cross-platform software, React Native, Redux, Sass, software development

NDA • Associate Software Engineer • 06/2019 to 08/2019 (3 months) • DIGIS
Application provides travellers with tips they can trust, anywhere, at anytime, brings to an end the era of messy
lists of recommendations sent to friends who want advice on restaurants, hotels and activities. The app allows
travellers to record their favourite spots and to get recommendations from their friends or local experts.
Team Size
3
Achievements
Contributed to a major redesign of the application.
Implemented new features to enhance user experience.
Supported and refactored legacy code to improve maintainability and reliability.
Applied skills: cross-platform software, CSS, Node.js, PostgreSQL, React Native, Redux

Perina-Lux • Associate Software Engineer • 03/2018 to 05/2019 (1 year and 3 months)
Online store which sell sleeping goods
Team Size
1
Achievements
Created and enhanced website forms, and implemented new design features to improve usability and
overall user experience
Tools and Technologies
HTML, CSS, jQuery, Joomla
Applied skills: CMS, CSS, HTML, Joomla, JQuery