Software Engineer Senior Fullstack

TIM TSYGANOV SENIOR FULLSTACK SOFTWARE ENGINEER

Sacramento, CA 510-***-**** ***************@*****.*** www.linkedin.com/in/timofei-tsyganov U.S. Permanent Resident (Green Card) – authorized to work in the U.S. for any employer, no sponsorship required Senior Fullstack Engineer with 10+ years architecting enterprise systems, specializing in enterprise-grade backend architectures and Oracle/IBM ESB modernization for Fortune 500 telecom and financial institutions. 10+ years building cloud-native microservices with Java, Kafka, OpenShift that process $2B+ daily transactions and serve 12M+ users across North America, Europe, and Asia. Led development projects for DHL, UPS, FedEx, GFC Transportation. KEY ACHIEVEMENTS

● Saved $2.5M annually in Oracle licensing costs by replacing 200+ legacy ESB services with cloud-native microservices using Java + Kafka + OpenShift, eliminating vendor lock-in for Fortune 500 telecom provider.

● Improved customer experience for 12M+ users by implementing OpenShift pod-warming that reduced first response latency from 800ms to 240ms, preventing $400K annual revenue loss from session timeouts.

● Reduced system downtime by 85% QoQ by building ELK-based monitoring stack with sub-5s log ingestion, saving $800K annually in lost transactions.

● Architected backend for healthcare platform serving 12M+ patients, 800+ clinics, orchestrating 700K+ daily service flows with sub-200ms latency.

● Integrated 600+ internal/external systems (insurance, ID, finance), reducing patient onboarding time.

● Replaced Oracle ESB with custom pub/sub engine, ensuring reliable message delivery across 2M+ daily public sector requests. PROFESSIONAL EXPERIENCE

CODINGBROTHERS June 2022 – June 2025

Software development agency with $8M+ annual revenue serving Fortune 500 logistics companies including major transportation providers across North America. [DHL, UPS, FedEx, GFC Transportation] SENIOR FULL STACK BACKEND ENGINEER

● Built Camunda-based dock assignment system, integrating with warehouse management systems. Optimized truck routing algorithms, reducing wait time from 18 to 7 minutes for 200+ daily dock assignments.

● Replaced 6 PRI lines with SIP trunk infrastructure and implemented 9 IVR flows in Asterisk, handling 400+ daily calls. Collaborated with telecom team for seamless migration.

● Created IVR-driven safety checklist system integrated with OSHA reporting. Worked with safety team to reduce serious citations from 25 to 4 annually.

● Deployed ELK Stack + Filebeat monitoring across distributed services. Built real-time dashboards cutting MTTR from 4h to 72m for DevOps team.

● Built Kafka Streams bridge connecting Samsara & Motive ELD systems (~15 msg/s). Enabled sub-second HOS alerts for fleet management team.

● Automated maintenance workflow, connecting odometer data to Jira. Cut unscheduled repairs by 15% through predictive alerts.

● Merged HOS logs + time-clock data via Camunda workflow. Eliminated 30 h/month manual payroll entry for operations team.

● Built 6 real-time React/OAuth2 dashboards in Liferay with WebSocket connections. Improved visibility and coordination for dispatch teams.

● Created Kafka to ClickHouse exporter with Grafana dashboards. Enhanced dispatcher performance tracking, cutting SLA penalties by 40%. NEOFLEX August 2017 – February 2022

$50M revenue enterprise software company serving Fortune 500 financial institutions and processing $2B+ daily transactions across Europe, Asia, and Africa.

BACKEND ENGINEER SYSTEM ARCHITECT

Card Issuance System Modernization

● Split monolith into 80+ Java/OpenShift microservices — iCard Issuance System Modernization. Collaborated with 6-person development team to improve system stability.

● Built GitLab CI/CD pipelines with automated testing and deployment. Reduced release cycle from 1 week to 1 day across development teams.

● Standardized JSON message formats across card processing services. Reduced support overhead for operations team.

● Authored comprehensive system architecture documentation and API specifications. Reduced onboarding time for new developers and improved cross-team synchronization.

● Aligned development teams on scalable microservices design patterns. Boosted delivery speed and ensured platform consistency across card issuing modules.

Bank-Wide Middleware Migration

● Led migration of 5,000+ IBM ESB/MQ services to Java/Kafka microservices on OpenShift. Worked with infrastructure and database teams to eliminate vendor dependencies.

● Converted monolithic ESB flows into event-driven architecture using Apache Kafka. Reduced system downtime and accelerated feature delivery for business teams.

● Replaced DB2/Oracle databases with PostgreSQL for 15M+ daily transaction processing. Collaborated with DBA team for seamless data migration.

● Implemented OpenShift pod-warming strategies to eliminate cold start latencies. Cut application startup times by 70% across containerized services.

● Built GitLab CI/CD infrastructure for 11 development teams, enabling zero-downtime deployments. Standardized release processes across banking platform.

Financial Onboarding & Compliance

TIM TSYGANOV 510-***-**** ***************@*****.***

● Integrated 250+ backend workflows via TIBCO BW/EMS for trading, onboarding, CRM, and compliance systems. Cut customer onboarding time from 10 days to 8 hours working with business analysts.

● Implemented real-time KYC/AML verification via SPARK, Kontur, FTS APIs. Reduced manual compliance checks by 90% WoW for operations team.

● Standardized message transformation formats across 40+ financial systems.

● Built REST/SOAP service adapters and durable message queues. Improved SLA reliability and message delivery across financial workflows.

● Mentored development team on ESB integration patterns and SVN version control.

● Created centralized integration documentation and reusable patterns. LANIT August 2015 – July 2017

Global IT services provider with 15,000+ employees, delivering enterprise-scale solutions for Fortune 500 companies and major financial and telecom clients.

BACKEND ENGINEER LARGE-SCALE PUBLIC SECTOR & LOGISTICS SYSTEMS EMIAS Healthcare Platform

● Integrated 600+ internal and partner systems (insurance, finance, ID validation, EMR) serving 12M+ patients across 800+ clinics. Reduced patient onboarding time from 2 to 4 weeks to 1–3 days, working with healthcare operations teams.

● Scaled backend to handle 21M+ SQL ops/day at 1,000 ops/sec peak load, ensuring zero downtime.

● Built real-time monitoring with ELK Stack, achieving sub-5s log latency. Enabled faster incident triage for support and operations teams.

● Developed REST/SOAP APIs serving 3.5M+ requests/day with average response time under 200ms. Maintained SLA compliance across healthcare workflows.

● Led backend optimization and mentored development team on SOA/ESB best practices. Improved release stability and team onboarding processes. Logistics Automation Platform (PEK)

● Developed 400+ BPM workflows in IBM BPM for logistics operations automation. Worked with operations teams to streamline freight coordination processes.

● Built real-time APIs connecting logistics and freight management tools. Reduced SLA violations by 80% WoW across freight operations.

● Implemented IBM MQ durable message queues for reliable message processing. Public Services Platform (“My Documents”)

● Integrated 500+ government systems (tax, ID, pensions, permits) via Oracle BPEL/ESB. Built unified citizen services platform, reducing in-person visits.

● Developed unified APIs, cutting citizen onboarding time from 2 to 4 weeks to 1–3 days. Collaborated with government agencies for seamless integration.

● Built SQL-based audit and traceability tools, ensuring legal compliance and data transparency for government workflows.

● Modularized ESB flows, reducing XSLT transformation logic. Simplified maintenance for development teams.

● Delivered ELK monitoring dashboards for 2M+ daily service calls. Maintained system uptime under 21M+ SQL operations/day with zero outages. EDUCATION

Master’s Degree in Computer Science, MTK

Bachelor’s Degree in Computer Science and IT Engineering, URAO Vitus Bering, Denmark

COMMUNITY LEADERSHIP

Acted as a technical mentor and onboarding guide for new developers, authored internal architecture and API documentation adopted across teams, initiated architecture review and service decomposition workshops, led knowledge-sharing sessions on microservices and message-driven architecture (Kafka, MQ), contributed to DevOps enablement through reusable CI/CD templates, improved system reliability by designing observability dashboards and alerting pipelines. TECHNICAL SKILLS

Programming Languages: Java, SQL, Python, JavaScript, C# Frameworks: Spring Boot, React, Node.js, .NET Core Integration: Apache Kafka, Oracle SOA Suite, IBM MQ, TIBCO BW/EMS, RabbitMQ Databases: PostgreSQL, Oracle DB, SQL Server, MongoDB, ClickHouse Cloud and DevOps: OpenShift, Kubernetes, Docker, AWS, Jenkins, GitLab CI, Terraform Monitoring: ELK Stack (Elasticsearch, Logstash, Kibana), Grafana, Prometheus

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