Services · Istanbul

One of Turkey's leading software firms — end-to-end enterprise engineering services.

Didivor Teknoloji delivers 8 core services: custom software development, mobile apps, cloud architecture & DevOps, AI & LLM integration, data engineering, cybersecurity, API & microservices, and eCommerce & payments. Founder Yavuz Ayhan Önder and our 10-person Istanbul-based core engineering crew have shipped 30+ production systems across fintech, defense, telco and energy. Each project runs end-to-end: discovery, architecture, build, DevOps and production rollout.

8
Core Services
30+
Production Systems
15+ yrs
Engineering
99.99%
SLO Uptime
10
Core Crew
8 Core Services

End-to-end software services for enterprise clients.

Each service is delivered with battle-tested architecture decisions and production experience. Not a one-off piece — engineering partnership for the lifetime of your product.

Custom Software Development

Greenfield, scalable, maintainable custom software for enterprise clients. End-to-end from product discovery to production rollout.

  • Web platforms & SaaS
  • Backend / API engineering
  • Legacy modernization
  • Architecture & system design
TypeScriptGoPythonJava.NET

Mobile App Development

iOS, Android and cross-platform mobile development. Every stage from store release to analytics setup.

  • iOS (Swift / SwiftUI)
  • Android (Kotlin / Compose)
  • React Native & Flutter
  • Push, payments & analytics
SwiftKotlinReact NativeFlutter

Cloud Architecture & DevOps

Cloud-native system design on AWS, GCP, Azure with Kubernetes, IaC, CI/CD and observability.

  • Kubernetes & service mesh
  • Terraform / Pulumi (IaC)
  • CI/CD pipeline design
  • SLO, alerting, on-call
AWSGCPAzureK8sTerraform

AI & LLM Integration

RAG, agent architectures, fine-tuning and production-grade LLM Ops. Solutions that balance cost, latency and security.

  • RAG & vector search
  • Agents & tool use
  • Fine-tuning & eval
  • LLM Ops & cost control
OpenAIAnthropicLangChainHugging Face

Data Engineering & Analytics

Warehouses, ETL/ELT, streaming pipelines and decision-support infrastructure. From real-time analytics to BI dashboards.

  • Lakehouse / DWH design
  • Kafka / Flink streaming
  • dbt & modeling
  • BI dashboards
PostgreSQLClickHouseKafkadbt

Cybersecurity & DevSecOps

Secure SDLC, OWASP Top 10, KVKK and ISO 27001 compliance, pentests, identity & access architecture. Security baked into production.

  • Threat modeling & SAST/DAST
  • OAuth2 / OIDC / SSO
  • KVKK & ISO 27001
  • Pentest & remediation
OWASPVaultSnykAuth0Keycloak

API & Microservice Architecture

REST, GraphQL, gRPC and event-driven microservices. With service mesh, contract testing and version management.

  • API design & versioning
  • Event-driven microservices
  • Service mesh & gateway
  • Contract & load testing
GraphQLgRPCKafkaIstio

eCommerce & Payments

High-volume e-commerce platforms, payment switches, PSP/PCI-DSS integrations, subscriptions & billing.

  • Headless commerce
  • Payment switch design
  • 3D Secure & PCI-DSS
  • Subscriptions & billing
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Process

From brief to production rollout in 4 steps.

Every project runs with the same discipline: no estimates without understanding, no claims without measurement. We deliver to your users — not just to you.

01 · DISCOVERY

Problem & scope analysis

Product vision, user scenarios, constraints and success metrics. Output: a 1-page technical brief.

02 · ARCHITECTURE

System design & planning

Architecture, data model, integrations, SLOs and risk plan. Output: ADRs & delivery timeline.

03 · BUILD

Sprints to production

2-week iterations, continuous demos. CI/CD from day one, observability from day one, security from day one.

04 · ROLLOUT

Production & sustain

Canary & blue-green deploys, on-call, runbooks. We stay with you after delivery.

FAQ

Frequently asked questions.

Clear answers to the most common questions on budget, timeline, technology and process.

How do you prove you're one of Turkey's leading software firms?

Founder Yavuz Ayhan Önder is a Senior Full Stack engineer with 15+ years of production engineering across fintech, defense, telco and energy. The core team has shipped 30+ production systems serving 120M+ end users. We work with measurable KPIs, ISO 27001 discipline and 99.99% uptime SLOs.

Why Didivor Teknoloji for custom software in Istanbul?

Our 10-person Istanbul-based core engineering crew runs custom software, mobile, cloud architecture and AI integration projects end-to-end. Not outsourcing — you work directly with founder-level engineers.

Which industries do you specialize in?

Fintech (payment switch, cards, anti-fraud), defense (high-security / air-gapped), telecom (BSS/OSS), e-commerce (high volume), energy (EV charging orchestration, SCADA), healthcare (KVKK-compliant patient data), mobility and enterprise SaaS.

How are timelines and pricing determined?

Instead of fixed-scope, we run fixed-time / variable-scope or T&M. A 1–2 week free discovery phase produces a precise quote. Typical projects are 8–24 weeks.

Can you work with our existing engineering team?

Yes — we offer staff augmentation, architecture consulting, code review and tech leadership. Either as an external full team or embedded engineers within yours.

How do you approach KVKK, ISO 27001 and PCI-DSS?

Security and compliance are not bolted on; they are baked into the architecture from day one. Threat modeling, OWASP Top 10 checklists, identity & access architecture, pentest reports and an audit-ready evidence chain are standard.

Let's ship your project together.

Talk to one of Turkey's leading software firms about your custom software, mobile, cloud architecture or AI project. We respond within 24 hours.

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