Misir JafarovSenior Software Engineer, Distributed Systems & Performance-Critical Applications
Profile

Software engineer with 7 years of experience building and operating distributed, performance-critical systems in energy trading and fintech. Strong track record of taking ownership of complex production systems, debugging challenging concurrency and performance issues, and working effectively across the full stack. Experienced in both technical leadership and hands-on engineering, with demonstrated ability to adapt quickly to new technologies and problem domains.

Professional Experience
March 2022 – presentRemote, United Kingdom

Distributed Real-Time Messaging System (2022–Present)

  • •Serve as primary technical owner for mission-critical distributed messaging system serving 700+ concurrent traders across 6 synchronized servers, processing real-time market data with sub-second latency requirements
  • •Respond to and resolve production incidents, including recent P2 incident; diagnosed and fixed complex memory leaks, race conditions, and timing synchronization issues in highly concurrent C# codebase
  • •Migrated infrastructure from OpenShift containers to AWS EC2, providing improved operational control and reliability for latency-sensitive workloads; implemented CI/CD pipelines using Azure DevOps
  • •Designed and implemented access control policing system to secure platform access
  • •Rebuilt broken telemetry and monitoring infrastructure from ground up, implementing comprehensive metrics collection, dashboards, and alerting system
  • •Maintained and extended Excel add-in (C#/WPF) used by trading desks, troubleshooting environment-specific issues across diverse client configurations

    • European Gas Trading Systems (2023–Present)

  • •Work on high-frequency market data processing and pricing systems handling 3000+ sustained market events per second, requiring system-wide recalculations based on complex interdependencies
  • •Modified core pricing algorithms to support different trading desk requirements, refactoring hardcoded logic into configurable components
  • •Took informal technical lead role on delayed cross-team project, coordinating 2-5 engineers through synchronization, task breakdown, and delivery management to get project back on track
  • •Collaborate directly with trading business stakeholders to gather requirements, demo prototypes, and deliver features
  • •Migrated additional services from EC2 to AWS ECS with automated deployment infrastructure
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    September 2018 – January 2022Baku, Azerbaijan

    Led technical execution for last-mile delivery startup serving e-commerce and logistics markets. Managed team of 6 engineers while remaining hands-on with architecture and implementation.

  • •Built and deployed full technology stack: 3 mobile applications (Flutter, with custom Java/Swift plugins), web dashboard (React/Node.js), and backend microservices (initially Node.js, later migrated to .NET Core and Go)
  • •Deployed and maintained production Kubernetes infrastructure on AWS EKS using GitOps practices (ArgoCD, GitHub Actions)
  • •Made product and technical roadmap decisions based on market feedback and resource constraints
  • •Handled partner integrations, B2B relationships, and talent hiring
    • October 2018 – November 2020Remote, USA

    Provided infrastructure and development consulting for credit card processing platform.

  • •Maintained production infrastructure and executed cloud migration from on-premises to AWS
  • •Implemented partner integrations for KYC services (PHP) and developed client libraries in multiple languages (JavaScript, others)
  • •Built custom CI/CD pipelines and automation tooling for deployment workflows
    • Technical Expertise
    Core Proficiency

    C# / .NET (ASP.NET Core, WPF, WinForms, XAML) · Distributed systems · Performance optimization · Concurrency & threading · Production operations & incident response

    Infrastructure & DevOps

    AWS (EC2, ECS, CDK, RDS) · CI/CD (Azure DevOps, GitHub Actions, GitLab) · Kubernetes · Linux (Debian, Red Hat Enterprise, Arch) · Windows Server · Monitoring & observability

    Additional Technologies

    Go · Node.js · TypeScript · Android · iOS · React · Flutter · Java · Kotlin · Swift · Rust

    Working Strengths

    Complex codebase navigation · Code review & bug detection · Cross-functional collaboration · Technical problem ownership · Rapid technology adoption

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    Open Source Contributions

    Implemented authentication support for third-party package registries (Pull Request); reported and disclosed security vulnerability CVE-2022-0451 in standard library

    Maintainer role: issue triaging, architecture decisions, code review, bug fixes, and community moderation for widely-used embedded database project

    Hobbies
    Playing piano

    Classical pieces

    Photography

    Landscape and architecture

    Flying

    Private pilot (EASA PPL-A)

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