Services

I help companies build technology that works. Whether you need strategic guidance, hands-on development, or someone to tell you the truth about your technical decisions I’ve spent 20 years doing exactly that.

How I Work With Companies

๐ŸŽฏ Fractional CTO

What it means: You get an experienced technology leader without hiring one full-time. I become part of your team for 10-20 hours a month attending key meetings, guiding your developers, and making sure your technology decisions align with your business goals.

Who it’s for: Growing companies that need senior technical leadership but aren’t ready for a $250K+ executive hire. Startups where the founder handles technology but needs a seasoned partner. Companies where the CEO needs someone to translate between the board and the engineering team.

What you get:

  • A technical leader in your corner for strategic decisions
  • Roadmap planning that balances speed with sustainability
  • Help building and structuring your development team
  • Someone to represent technology in investor and board conversations
  • Architecture oversight so you don’t build yourself into a corner

๐Ÿ’ก Technical Advisor

What it means: Ongoing access to experienced technical guidance typically 5-10 hours a month. Think of it as having a trusted expert on speed dial for the decisions that keep you up at night.

Who it’s for: Early-stage founders making technical decisions without a technical co-founder. Companies evaluating agencies, vendors, or potential hires. Leaders who want a second opinion before committing to major technology choices.

What you get:

  • Regular calls to discuss challenges and decisions
  • Async access for urgent questions between sessions
  • Vendor and proposal evaluations (I’ll tell you if you’re being oversold)
  • Architecture reviews and recommendations
  • Interview support for technical hires

๐Ÿ” Technical Due Diligence

What it means: Before you acquire a company, invest in a startup, or partner with a technology vendor, I dig into their technical foundation and tell you what’s really there not what the pitch deck claims.

Who it’s for: Investors evaluating technical teams. Companies considering acquisitions. Executives who need to know if a potential partner can actually deliver what they’re promising.

What you get:

  • Honest assessment of code quality and architecture
  • Identification of hidden technical debt (the expensive problems nobody mentioned)
  • Team capability evaluation
  • Risk analysis and recommendations
  • Clear report you can use in negotiations

๐Ÿค– AI Strategy & Implementation

What it means: I help you figure out where AI actually adds value to your business and then help you build it. Not the hype. Not chatbots for the sake of chatbots. Real integration that solves real problems.

Who it’s for: Companies that know AI could help but aren’t sure where to start. Teams that tried AI and got disappointing results. Leaders who want to separate genuine opportunities from vendor marketing.

What you get:

  • Assessment of where AI fits your specific business
  • Build vs. buy recommendations for AI capabilities
  • Implementation guidance or hands-on development
  • Help selecting the right models and tools
  • Integration with your existing systems

๐Ÿ—๏ธ Architecture & Systems Design

What it means: I design the technical foundation for your product how the pieces fit together, how it will scale, and how to build it without creating problems you’ll pay for later.

Who it’s for: Companies building new products from scratch. Teams whose current system can’t handle growth. Organizations planning major technology changes.

What you get:

  • Architecture design that matches your actual needs (not over-engineered, not under-built)
  • Technology selection with clear reasoning
  • Scaling strategy for your growth trajectory
  • Documentation your team can actually use
  • Hands-on implementation support if needed

๐Ÿ”ง Technology Modernization

What it means: Your old system still works, but it’s holding you back. I help you upgrade without burning everything down migrating to modern infrastructure while keeping the business running.

Who it’s for: Companies stuck on aging technology. Teams drowning in technical debt. Organizations that need to modernize but can’t afford to stop operations.

What you get:

  • Assessment of what needs to change (and what doesn’t)
  • Migration planning that minimizes risk
  • Cloud infrastructure setup and optimization
  • Gradual transition strategies that don’t break production
  • Team training on new systems

โ›“๏ธ Blockchain & Web3 Development

What it means: If your business genuinely benefits from blockchain technology, I can help you build it right. I’ve been working with blockchain since 2013 long before it was trendy and I know when it’s the answer and when it’s overkill.

Who it’s for: Companies exploring tokenization, smart contracts, or decentralized applications. Financial services firms evaluating blockchain integration. Organizations that need someone who understands both the technology and the regulations.

What you get:

  • Honest assessment of whether blockchain solves your problem
  • Smart contract development and security review
  • Multi-chain architecture (I’ve built across Ethereum, Solana, Polygon, and more)
  • DeFi protocol design and implementation
  • Compliance-aware architecture for regulated industries

๐Ÿ“ฑ Product Development

What it means: From idea to launched product. I help you validate the concept, scope the MVP, build it, and get it into users’ hands whether that’s web, mobile, or both.

Who it’s for: Founders with ideas that need building. Companies launching new product lines. Teams that need senior technical involvement from day one.

What you get:

  • Product strategy and MVP scoping
  • Technical architecture and implementation
  • Team building if you need to scale
  • Launch support and iteration planning
  • Ongoing technical leadership post-launch

Industries I Know Well

I’ve worked across industries, but these are where I’ve gone deepest:

Fintech & Financial Services
Payment processing, investment platforms, banking infrastructure, fraud detection, regulatory compliance

Blockchain & Crypto
Multi-chain wallets, DeFi protocols, smart contracts, tokenization, NFT platforms, compliance-first architecture

AI/ML Products
LLM integration, recommendation systems, data pipelines, from prototype to production-grade systems

SaaS Platforms
Multi-tenant architecture, API design, integration ecosystems, subscription billing

Marketplaces & Social
High-traffic platforms, real-time features, recommendation systems, payment flows

Enterprise Software
Internal tools, workflow automation, data analytics, legacy modernization

Why Work With Me

I’ve done this before a lot. 20 years of building software. CTO roles at multiple companies. Systems serving millions of users. I’ve made the expensive mistakes so you don’t have to.

I write code, not just strategy decks. I’m not a consultant who hands you recommendations and disappears. I can architect the solution, then help build it. When I review your codebase, I understand it at the line level.

I translate between business and technology. I’ve pitched to investors and debugged production issues in the same week. I can explain technical tradeoffs to your board and business constraints to your engineers.

I’ll tell you what you need to hear. If your timeline is unrealistic, I’ll say so. If your architecture won’t scale, I’ll explain why. If you don’t actually need blockchain, I’ll talk you out of it. You’re paying for honest expertise, not validation.

Technical Details

For those who want to know what’s under the hood.

Core Technology Stack

Backend Development

  • Ruby on Rails (expert level, 15+ years)
  • Node.js / NestJS / Express
  • Python (Django, FastAPI, ML pipelines)
  • Go / Golang
  • Elixir / Erlang

Frontend Development

  • React / Next.js
  • TypeScript
  • Vue.js / Angular
  • Redux, Backbone.js

Mobile Development

  • iOS (Swift, Objective-C)
  • Android (Kotlin, Java)
  • React Native (cross-platform)
  • Published author: “PhoneGap Essentials” (Packt Publishing)

Databases & Data

  • PostgreSQL (including PgVector for AI applications)
  • MongoDB, CouchDB
  • Redis, Memcache
  • Elasticsearch
  • MySQL, MS SQL Server

Infrastructure & DevOps

  • AWS (25+ services, certified-level expertise)
  • Google Cloud Platform (GCP)
  • Heroku
  • Docker, Kubernetes
  • Terraform (Infrastructure as Code)
  • CI/CD: CircleCI, GitHub Actions, Capistrano
  • Linux server administration (Debian, Ubuntu)

AI & Machine Learning

  • LLM integration (OpenAI, Anthropic, open-source models)
  • Vector databases (PgVector, Pinecone)
  • ML pipeline architecture
  • Prompt engineering and optimization
  • RAG (Retrieval-Augmented Generation) systems
  • AI-powered trading systems (Q.ai)

Blockchain & Web3

  • EVM chains: Ethereum, Polygon, BNB Chain, Arbitrum
  • Non-EVM: Solana, Sui
  • Smart contract development: Solidity, Rust
  • DeFi protocols: AMMs, staking, yield aggregation
  • Token standards: ERC-20, ERC-721, ERC-1155, ERC-3643, ERC-4626
  • Multi-chain wallet architecture
  • NFT platforms and marketplaces

Architecture Patterns

  • Microservices architecture
  • Event-driven systems (EventBus, message queues)
  • Serverless architecture
  • API design (REST, GraphQL)
  • Real-time systems (WebSockets, Server-Sent Events)
  • High-availability distributed systems
  • Legacy system migration and modernization

Development Practices

  • Test-Driven Development (TDD), BDD
  • Agile/Scrum methodology
  • Code review and quality assurance
  • Performance testing (JMeter, custom tooling)
  • Security-first development

Ready to Talk?

I’m currently taking on 2-3 new clients. If you’re facing technology challenges and want honest, experienced guidance or hands-on help let’s have a conversation. I’ll tell you straight whether I’m the right fit.

Get In Touch

๐Ÿ“ง ivan.turkovic@gmail.com
๐Ÿ”— LinkedIn
๐Ÿ“ London, UK (working globally)

Also available through Toptal for verified contract work.