Personal details

Christian C. - Remote front-end developer

Christian C.

Based in: 🇭🇷 Croatia
Timezone: Zagreb (UTC+2)

About

Senior Software Engineer and Tech Lead with 10+ years of experience owning architecture, delivery, and technical strategy for enterprise and high-growth startups. Proven record of taking ambiguous, high-risk products from MVP to production, leading cross-functional teams, and delivering platforms with measurable business impact at scale.

Trusted technical partner to founders and stakeholders, with deep expertise in frontend systems, serverless architectures, cloud platforms, and performance-critical applications in regulated and data-intensive environments.

Work Experience

Founding Engineer & Lead Architect
RADOST IT | Jul 2022 - Present
HTML/CSS
Node.js
TypeScript
React
Serverless
Next.js
Redux Toolkit
Zustand
AWS

Appointed CTO and architecture owner for CardAuthentico, taking full accountability for system design, delivery, and production readiness
Took the platform from non-functional MVP to full production in 3 months, after a previous 4-person team had failed to progress beyond a basic demo
Designed and delivered a secure, cloud-native, serverless architecture supporting web, iOS, Android, and macOS clients
Led and mentored cross-functional teams of 4–8 engineers, setting engineering standards, review practices, and delivery processes
Integrated AI-driven features including OCR, image-based search, and LLM-assisted data extraction
Owned security-sensitive features including passwordless authentication, identity verification, and compliance-oriented onboarding
Acted as primary technical stakeholder interface, translating business goals into execution plans and delivery milestones

Key Clients & Projects
CardAuthentico — Full-stack ownership of a regulated, payment-driven platform; significantly exceeded scope and feature set of earlier prototypes
Tendertec — Designed and built a monitoring and incident detection dashboard processing thousands of videos per day, enabling tagging, review, and operational insights at scale
H&M Impuls — Tech Lead for a high-pressure 6-week rewrite of an existing platform, leading a team of 4 and achieving 80% reduction in load times
Multiple enterprise & startup clients — Architecture, delivery leadership, and hands-on development across web and cloud platforms

Founder / Frontend and Tech Lead
Engiweb Ltd | Jan 2020 - Jul 2022
HTML/CSS
Azure
React
JavaScript
React Native
Redux
GraphQL
Next.js
Sass
AWS

Served as Frontend and Technical Lead on large-scale enterprise platforms.
Led frontend architecture and delivery for National Grid, as part of the core team establishing the foundations of a customer payments product now used by 400k+ users
Took ownership of performance, testing strategy, CI/CD pipelines, and frontend standards across multiple products
Built and scaled serverless systems across AWS and Azure, improving deployment reliability and reducing operational overhead
Acted as technical authority and escalation point across multiple concurrent client engagements

Notable Work
National Grid Online Payments Platform — Core team member defining architecture and frontend foundations for a high-scale consumer system
H&M Impuls — Platform redesign under aggressive timelines, delivering major performance gains and improved reliability

Projects

Ontopop
HTML/CSS
Azure
JavaScript
Jest
Redux
Next.js
Cypress
Sass
OntoPop is an open source framework enabling the visualisation, search, exploration and management of ontologies.
Manipulist
OAuth 2.0
Payment gateway
Jest
React Native
Swift
Redux
Serverless
Next.js
AWS
Manipulist extracts and transform text the way you need it. Load input text. choose tools, transform text and export it.

Education

University College Dublin
Mechanical EngineeringMechanical Engineering
Sep 2010 - Sep 2012

Certifications & Awards

Associate Data Engineer
Learn Data Engineering | Jul 2025