Top Cybersecurity Jobs in Istanbul

Analyze complex Web3 security incidents, extract attack patterns, and maintain SOPs. Identify workflow gaps and improve operations, partner with AI agents to build a security knowledge base, and convert manual analyses into automated detection rules while staying ahead of emerging DeFi and wallet exploit techniques.

Analyze large-scale on-chain data to detect anomalous transactions, develop detection mechanisms and risk monitoring frameworks, apply supervised and unsupervised ML, identify malicious accounts via community-discovery algorithms, and design integrated on-chain/off-chain prevention and control systems.

Senior presales/system sales engineer for LenelS2 and Honeywell security portfolios. Design end-to-end security architectures, support opportunity qualification, deliver demos/POCs, respond to RFPs, run trainings and events, mentor engineers, and support project handover and post-sales technical milestones across regional, multi-site projects.

Senior pre-sales/application systems engineer for LenelS2 and Honeywell security portfolios. Design integrated access control, VMS, and intrusion solutions, support sales lifecycle, deliver technical presentations/POCs, respond to RFPs, mentor engineers, and assist transition to delivery with post-sales support and documentation review.

Lead security engineering across web apps, APIs, cloud (AWS/OCI), Kubernetes, and on-prem systems. Build CI/CD security, secure genomic and PHI/PII pipelines (HIPAA), run monitoring and incident response, prepare for HIPAA/SOC2/ISO27001 audits, perform pentesting/vulnerability discovery, improve logging/SIEM, and drive remediation with engineering and DevOps while raising company-wide security awareness.

Embed application security across a large cloud-native, microservices fintech platform: design secure architectures, run threat modeling, integrate SAST/DAST and dependency/secrets scanning into CI/CD, manage vulnerability lifecycle, support pentests and bug bounties, and improve secure coding and AppSec maturity.

Perform protocol-focused security research to prevent vulnerabilities on Ethereum mainnet. Tasks include AI-assisted analysis, fuzzing, manual review, reviewing hardforks and spec changes, improving security tooling and automation, coordinating disclosures, and supporting audits and audit competitions while collaborating with devops, specifications authors, and client implementers.

Define and execute the product roadmap for AI-driven blockchain security monitoring tools. Collaborate with cross-functional teams, analyze market and customer feedback, deliver features on time, and communicate with stakeholders to align expectations and improve product offerings.

Lead identification, mitigation, and prevention of security risks across teams. Architect and manage security solutions, enforce policies, perform penetration testing and purple teaming, monitor and respond to incidents, build automation and security frameworks, and collaborate on secure design and DevSecOps practices for a decentralized exchange.

Lead design, integration, and governance of physical and technical security across Eastern Europe. Manage security systems (CCTV, access control, intrusion detection, biometrics, radar, VMS), project delivery, risk, investigations, compliance (TAPA, ISPS, ISO 28000, etc.), vendor/guard‑force oversight, and stakeholder engagement. Provide incident response, audits, training, procurement support, and regional security standards while traveling extensively (~50%).

Own and scale Wayflyer’s security program: lead a security team, define strategy, run monitoring, detection and incident response, partner with engineering on cloud and application security, manage third‑party risk, ensure regulatory controls, and report security posture to leadership.

Own and evolve cloud infrastructure across AWS/GCP/Azure, build CI/CD and containerized deployments, design multi-tenant environments, implement monitoring and IaC (Terraform/Ansible), lead data protection and threat detection, and support compliance and security audits.

Owner of offensive security testing and continuous perimeter monitoring across external domains, IPs, DNS, VPS, and office infrastructure. Conduct adversary emulation against endpoints/EDR/XDR, scoped web/API tests, and document exploitation chains. Translate findings into defensive controls, support Purple Teaming, and improve asset tracking and remediation metrics.

Design and implement secure Linux-based product, network, and server architectures with automation. Lead cloud infrastructure and application deployment projects, support regulatory and product security management, and advise on APIs (REST, MQTT, OPC-UA). Work in a cross-functional team using containerization, CI/CD, and infrastructure-as-code tools.

Provide strategic procurement and contract advice across major public and private projects, lead end-to-end procurement processes, support post-contract management under NEC4, develop procurement services and supply-chain intelligence, contribute to business development, and mentor/manage teams while supporting CIPS/MCIPS accreditation.

Perform patrols and static-post duties to maintain safety and order in the mall. Respond to and report emergencies, manage traffic and crowd control, monitor construction and maintenance works, enforce safety and fire regulations, assist tenants and shoppers, oversee outsourced security guards, and document incidents. Requires basic first aid, investigation skills, and knowledge of Auxiliary Police rules.

Design, build, and harden Chromium-based browser components in C++ to power Menlo's AI/agent initiatives; apply networking and HTTP security expertise; integrate AI agents and MCP servers; build tooling in Python or Rust; deploy and operate cloud infrastructure (AWS/GCP, Kubernetes, Terraform); debug and optimize performance-critical systems; collaborate cross-functionally.

Design, build, and operate Threat Protection and ShadowAI services: scalable distributed systems and APIs that detect and control risky web and generative AI usage. Own features end-to-end, maintain availability and latency SLOs, write tests, perform code reviews, use AI-assisted tools, and collaborate with cross-functional teams to improve detection accuracy and production reliability.

Own a UK region and build a pipeline of strategic, high-value accounts. Execute consultative account plans from prospecting through close, engage CISOs and security leaders, deliver outcome-based demos with Solutions Engineers, collaborate with partners and internal teams, accurately forecast revenue, and contribute go-to-market feedback.

Design, build, and operate multi-region VM and Kubernetes infrastructure on GCP and AWS. Lead IaC standards with Terraform/Spacelift, implement observability (Grafana/Prometheus/OTel), manage core platform services (DNS, certs, ingress, service mesh), drive automation and CI/CD, mentor engineers, and participate in 24x7 on-call incident response and post-incident reviews.

Develop and extend Menlo Security's web isolation remote browser technology across desktop and mobile. Work on Chromium internals, networking, video/audio, HTML5 features (WebGL/WebRTC), containerization, scaling and load balancing with a strong systems-level Linux and security focus.