Expertise

Software Architecture and Technical Leadership

Good software comes from sound architecture decisions and a team that can carry them. I have been developing software for over twenty years and providing technical leadership to teams for over ten. As a CTO I built the architecture of enterprise products, led an ISO/IEC 27001 certification process and managed the development organisation.

What are software architecture and technical leadership?

Software architecture defines the parts of a system, how those parts talk to each other, and which decisions are expensive to change later. Technical leadership is turning those decisions into reality with a team, at a sustainable pace. When the two are considered separately, the result is either a plan that doesn't work or a team without direction.

What do I do?

  • Architecture review. I surface the strengths and weaknesses of the existing system, the decisions blocking growth and the urgent risks.
  • Technical roadmap. I order what should be done now and what later, by cost, risk and business impact.
  • Team structure. I set up roles, responsibilities, the code review flow, delivery cadence and documentation discipline.
  • CTO consulting. Interim technical leadership for companies without their own CTO or needing an outside eye on technology decisions.
  • Technical due diligence. I assess the real state of the technology and the team before investment, acquisition or partnership.
  • Security and process. Management systems such as ISO/IEC 27001, access control and change management.

What I look at in architecture decisions

  • Monolith or services? Moving to a service architecture before team size and deployment needs are clear raises cost in most projects.
  • Data model and ownership. Where is each piece of data born, who updates it, who reads it? This is the most expensive area to fix later.
  • Integration boundaries. The error, retry and authorisation behaviour of the layers that talk to external systems.
  • Security. Identity, permissions, personal data, logs and backups; security added later usually stays half-done.
  • Observability. Is the system working, where is it slowing down, where does an error start?

Technical leadership

I don't see team management as a desk job. I stay inside the architecture decisions, read code and write it when needed. A good technical leader's job is to reduce the uncertainty in front of the team and make the reasons behind decisions visible.

  • Hiring and technical evaluation.
  • Code review and shared standards.
  • A realistic delivery cadence; without the constant "it will be done tomorrow".
  • Documentation and handover-readiness.
  • Technical debt that is visible and prioritised.

My experience

As CTO at Açık Deniz Bilişim, I managed the architecture and development organisation of enterprise B2B products: ERP and CRM integrations, end-to-end encrypted communication, secure file storage and mobile solutions for FMCG field teams.

In the same period I set up the company's ISO/IEC 27001 information security management system and carried it through to certification. This experience lets me handle security and process topics in an audited way, not just theoretically.

At E-Veri Bilişim I managed the team developing e-commerce, mobile and web applications; at Turkcell I provided technical leadership on the customer services platform team.

Staged work

Instead of tying the work to one big delivery up front, I split it into stages. Each stage has a visible output, an acceptance criterion and a payment. This method protects both the budget and the expectations. Details: why work should be done in stages.

Who is it for?

  • Startups growing fast that want to establish technical decisions without depending on a single person.
  • Companies looking for an outside eye and architecture audit for their existing CTO.
  • Enterprise teams that want to rethink their digital product.
  • Investors looking for a partner to take over the technology side.

Frequently asked questions

What is CTO consulting?

It is taking on the company's technology direction temporarily, or giving outside support to the existing CTO. Architecture decisions, team structure, vendor selection, technical budget and delivery planning fall within this scope.

How is an architecture review done?

The codebase, deployment infrastructure, data model, integrations and team flows are examined. Risks and opportunities are then presented as a prioritised report; if implementation is wanted, we proceed with a staged plan.

How long does it take?

A one-off architecture review usually takes 1-2 weeks. Ongoing consulting is planned on a monthly rhythm, as a few hours or days per week depending on need.

Can you provide interim leadership for our team?

Yes. I can provide technical leadership, code review and delivery planning without disrupting the existing team's rhythm. If a permanent CTO is being sought, I also support the hiring process.

Do you provide support on ISO 27001?

I set up the ISO/IEC 27001:2013 information security management system at a company and carried it through to certification. Today I use this experience as consulting on process and security design.

What size of teams do you work with?

I have worked at different scales, from small product teams (3-5 people) to enterprise development organisations. What matters is not the team size but the clarity of decisions and delivery discipline.