Viktor S.
Fractional CTO | Technical Product Manager | Full-Stack Engineer
I help startups and companies turn product ideas into working software with clear scope, solid technical decisions, and reliable execution. My strength is operating across product, engineering, and delivery. I can define what needs to be built, shape how it should be built, lead the team, and contribute hands-on where it matters. I have 20+ years of experience in software development and product delivery, including roles as CTO, founder, team lead, and technical product manager. I use AI tools daily for discovery, analysis, product work, and engineering workflows, including ChatGPT, Claude, Claude Code, Figma Make, and others. Typical situations where I am most useful: - a founder needs a senior technical partner without hiring a full-time CTO, - a product needs structure, priorities, and execution discipline, - a team needs technical leadership and delivery management, - a company needs someone who can own architecture, requirements, and communication end-to-end. What I can help with: - product discovery and scoping, - technical architecture and solution design, - turning ideas into requirements, milestones, and development plans, - backlog prioritization and delivery management, - engineering team leadership, - API and third-party integrations, - hands-on full-stack implementation when needed. I have worked on fintech platforms, payment integrations, web and mobile products, API-heavy products, and UX and delivery improvements for existing applications. Core stack: PHP, Laravel, Node.js, SQL, REST APIs, Linux, JavaScript, HTML, CSS. I am a strong fit for clients who need ownership, clarity, and practical execution, not just code hours.
Earnings and projects
Last 6 months ÷ 6
Last 6 months: $6.3k
$6.3k in the last 6 months
Across 2 contracts
Across 7 contracts
Earnings, last 30 days
Skill rankings: Top 7% in Yii
Ranked by MRR among everyone on Upwork with the skill.
- #23Product Discovery165 freelancers · 🇵🇹 #1Top 14%🇵🇹#1 of 2
- #29Yii394 freelancers · 🇵🇹 #1Top 7%🇵🇹#1 of 2
- #32Yii2396 freelancers · 🇵🇹 #1Top 8%🇵🇹#1 of 2
- #36Requirements Specification246 freelancers · 🇵🇹 #2Top 15%🇵🇹#2 of 3
- #71Product Strategy494 freelancers · 🇵🇹 #1Top 14%🇵🇹#1 of 7
- #138FinTech802 freelancers · 🇵🇹 #3Top 17%🇵🇹#3 of 9
- #165Payment Processing834 freelancers · 🇵🇹 #1Top 20%🇵🇹#1 of 1
- #192Cross Functional Team Leadership1,042 freelancers · 🇵🇹 #2Top 18%🇵🇹#2 of 8