Istanbul, Istanbul, Türkiye
I am a Software Engineer with 14+ years of hands-on experience building and operating high-performance, low-latency financial systems for trading, securities, and treasury platforms. My technical background spans distributed and event-driven architectures, in-memory and multi-threaded systems, and high-throughput data processing under strict latency and availability constraints. I have deep domain expertise in capital markets, including FIX, ITCH, and OUCH protocols, and production-grade trading systems. A significant part of my work focuses on production engineering and system resilience. I frequently lead Sev-1 / Sev-2 incident response, performing deep root-cause analysis using metrics, logs, and traces, and translating findings into architectural and operational improvements. Technical areas I specialize in: Low-latency & high-throughput system design Distributed systems using Kafka, Hazelcast, Redis Resilience engineering (HA, DR, failover, fault tolerance) Observability & diagnostics (Dynatrace, Instana, Grafana, Elastic Stack, Splunk) SDLC & deployment automation with Jenkins and zero-downtime release patterns Performance testing, capacity planning, and SQL optimization System modernization & retirement of obsolete components I approach software engineering with a strong belief that architecture decisions are operational decisions. Performance, stability, and recoverability are not optional qualities, but core design goals. My focus is on building systems that remain correct, performant, and observable under stress, and that can evolve safely over time in complex financial environments. 📍 Istanbul, Turkey 💼 Capital Markets • Treasury • Trading Systems • Software | Resilience Engineering
• Act as a senior technical authority for system resilience, availability, and operational continuity across Treasury platforms. • Design and govern resilience strategies including disaster recovery (DR), failover, and high-availability mechanisms for mission-critical financial systems. • Lead root-cause analysis and remediation efforts for high-severity (Sev-1 / Sev2) production incidents. • Drive observability and monitoring practices using Dynatrace, Instana and Grafana to improve system visibility and early issue detection. • Perform advanced log analysis using Elastic Stack (Elasticsearch & Kibana) and Splunk to diagnose complex production issues and identify systemic risks. • Define proactive alerting and alarm rules based on metrics, logs, and system behavior to reduce incident frequency and mean time to recovery (MTTR). • Collaborate closely with architecture, infrastructure, and development teams to embed resilience, reliability, and observability principles into system designs. • Influence architectural decisions with a strong focus on stability, scalability, and operational risk reduction.
• Served as a technical authority for capital markets and securities systems, supporting both business and technical teams. • Frequently led the technical response for high-severity (Sev-1 / Sev-2) production incidents, coordinating multiple teams to ensure rapid service recovery. • Took ownership of root-cause analysis and corrective action planning for critical system failures impacting trading and securities operations. • Designed and evolved architectures for mission-critical trading and securities applications with a strong focus on scalability, stability, and performance. SDLC & Deployment Automation • Led SDLC automation initiatives by transforming manual deployment processes into fully automated pipelines. • Designed and implemented an internal deployment workflow triggered via the company’s internal platform, automatically invoking Jenkins pipelines. • Integrated Jenkins with third-party deployment tools to orchestrate servicebased, zero-downtime deployments across 100+ nodes in parallel. • Designed deployment strategies aligned with service functions to eliminate downtime during releases. • Significantly reduced deployment time and operational risk by standardizing and automating release processes. Regulatory & Cross-Domain Leadership • Acted as a key technical and business liaison during major regulatory and structural changes introduced. • Analyzed the impact of regulatory changes on products and systems, identifying dependencies and impacts across multiple domains. • Proactively informed and aligned impacted teams outside the Capital Markets domain to ensure organization-wide readiness. • Provided clear technical and functional guidance on required changes for teams within the Capital Markets domain. • Led end-to-end change initiatives, supporting business and technical teams through impact analysis, business analysis, implementation, and postdevelopment testing, with periodic progress meetings.
Quality, Performance & Risk Ownership • Maintained strong ownership over quality outcomes beyond functional requirements, focusing on performance, stability, and operational criteria. • Ensured changes did not introduce performance degradation by planning and executing production-level performance tests. • Designed and coordinated scenario-based performance and load tests simulating real production conditions, including concurrent load across multiple interacting services. • Validated system behavior under peak and stress conditions to identify bottlenecks and failure points before production releases. • Treated quality and robustness as primary engineering responsibilities throughout the project lifecycle. • Reviewed and validated third-party developments through architectural, quality, and performance assessments. • Drove application-level and SQL performance optimizations for high-throughput financial systems. • Led initiatives to retire obsolete components and reduce long-term technical debt.
• Designed and developed high-performance order management systems and databases for trading platforms. • Built multi-threaded, in-memory trading systems on both server and client sides. • Implemented integrations using FIX, ITCH, and OUCH protocols. • Developed applications for Equity and Derivative Markets (BIST and international exchanges). • Played a key role in diagnosing and resolving production issues in customer environments.
• Developed software applications related to insurance.
• End-to-end custom software solutions for local businesses