Volodymyr

Volodymyr Zhuravlov
Senior Backend Engineer | Node.js · TypeScript · Distributed Systems · FinTech
[відкрити контакти](див. вище в блоці «контактна інформація») | Telegram: @jvvukr | [відкрити контакти](див. вище в блоці «контактна інформація») | Open to remote
SUMMARY
Senior Backend Engineer with 20+ years of software engineering experience spanning modern backend development, distributed systems,
FinTech, trading, payment integrations, telecom and embedded systems. Strong hands-on experience with Node.js, TypeScript, NestJS,
PostgreSQL, RabbitMQ, Redis, REST/WebSocket APIs and event-driven architectures. Designed and implemented business-critical systems
including trading integrations over FIX, payment automation, complex pricing engines, booking work ows and high-reliability embedded
systems. Engineering background spans the full stack — from MCU/FPGA rmware and industrial communication protocols to backend
architecture, databases, APIs, infrastructure and web applications.
CORE SKILLS

Backend Node.js, TypeScript, NestJS, Express, PHP, Laravel, Python

Databases PostgreSQL, MySQL, MS SQL Server, MongoDB, Redis

Messaging & Protocols RabbitMQ, FIX, REST, WebSockets, MQTT, SOAP

Architecture Event-Driven Systems, Microservices, Distributed Systems, Async
Processing, Idempotency

FinTech & Trading Trading Platforms, Exchange APIs, Payment Gateways, Crypto/Fiat
Automation

Infrastructure Docker, Linux, Nginx, AWS, CI/CD, Git, Sentry, Grafana, Prometheus

Frontend / Mobile Vue.js, Nuxt, React (working knowledge), jQuery, Swift, Kotlin/Java,
Unity (supporting experience)

Embedded & Systems C/C++, AVR, STM32, FPGA/VHDL/Verilog, UART, SPI, I²C,
RS-232/485, GPS/GPRS

PROFESSIONAL EXPERIENCE

Senior Backend Engineer — Travel Platform (Contract) 2024–2026

Backend development for a B2C travel CRM and booking platform covering accommodation, attractions, transfers, ights, extras, contracts,
pricing and vouchers.
• Designed and implemented a complex pricing engine supporting seasonal contract rates, tariff periods, minimum-stay restrictions, close-outs,
extras, Early Bird and Multi-Night discounts.
• Designed core backend architecture and implemented business logic across accommodation, attractions, transfers, ights and booking
work ows.
• Introduced a feature- agged migration path allowing old and new pricing implementations to operate safely during rollout.
• Built complex voucher-generation work ows using Node.js and Puppeteer; implemented pricing persistence/restoration and client-facing API
integrations.
• Designed and optimized PostgreSQL schemas, queries and indexes; implemented REST APIs, WebSockets, scheduled jobs and backend
integrations.
• Worked with AWS S3, Nginx, Docker and CI/CD; supported frontend developers with debugging and integration issues.
Technologies: Node.js, PostgreSQL, REST, WebSockets, Docker, Nginx, AWS S3, Puppeteer

Senior Backend Engineer — EndoTech 2021–2024

Backend development for trading platforms integrating Forex brokers and cryptocurrency exchanges.
• Designed and implemented a complete FIX integration for Forex order execution and lifecycle processing, including execution reports, status
handling, Stop Loss and Take Pro t work ows.
• Integrated trading signals with execution services through RabbitMQ and helped transform a predominantly linear system into an event-driven
architecture.
• Developed cryptocurrency exchange integrations for balances, account information and order sizing/execution.
• Built a depot/account checker for blocked accounts, insuf cient funds, permissions and other trading-account conditions.
• Designed and optimized PostgreSQL data structures and complex statistical/history queries; developed REST/WebSocket APIs and worked
with Redis.

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• Supported legacy migration and assisted with Next.js frontend work when required. Technologies: Node.js, TypeScript, NestJS, PostgreSQL,
RabbitMQ, Redis, FIX, REST, WebSockets, Exchange APIs

Software Developer — WDS 2020–2021

Worked across multiple commercial client products using Laravel, Vue.js, WordPress, Shopify and Swift.
• Developed a collaborative video social application where up to ve participants sequentially recorded/modi ed a video before publication;
implemented Laravel backend work ows and the Swift iOS application.
• Built a solar-energy CRM with customer management and a step-by-step wizard for con guring solar panels and related equipment.
• Developed a custom-printing work ow: customer artwork upload, designer processing, customer review/approval and order progression to
ful llment.
• Built an anti-bullying questionnaire platform with adaptive question ows, persisted responses and an administration dashboard.
• Developed an on-demand massage booking system for Canada using Google Maps API, service zones, distance and staff availability to
prioritize and assign the nearest suitable therapist.
• Developed and maintained WordPress plugins and integrations; handled Shopify integrations, maintenance and client xes.
Technologies: PHP, Laravel, Vue.js, WordPress, Swift, Shopify, Google Maps API, SQL

Independent Software Engineer 2017–2020

• Built payment and nancial automation integrating Thai banking systems and other payment services.
• Implemented automated and semi-automated money-transfer work ows using APIs, Selenium, Android/ADB automation and con gurable
business rules.
• Built Telegram-based operational work ows for transfer approval, noti cations and audit trails.
• Operated Bitcoin and Ethereum infrastructure including nodes, address-pool generation, address assignment and incoming-transaction
monitoring.
• Built a P2P cryptocurrency marketplace with offers, at payment work ow, crypto escrow, timeouts, disputes and administrative arbitration.
• Developed a cryptocurrency market-analysis and paper-trading system collecting order books/trades and visualizing candlesticks, levels and
simulated trades.
• Developed FamilyGuard, a parental-control/safety MVP with GPS tracking, geofences, movement history, background synchronization and
alerting.
• Built an industrial production-monitoring prototype integrating real production-line controllers over Ethernet with a data collector, MS SQL
Server and a PHP/Vue monitoring interface.
Technologies: PHP, Laravel, Yii2, WordPress, Node.js, Python, Vue.js, PostgreSQL/MySQL, MS SQL Server, RabbitMQ, Telegram API,
Selenium, Android/ADB, Bitcoin/Ethereum infrastructure

Software Engineer — MaxBill / LogNet Systems ~2012–2017

• Developed telecom/service con guration systems using PHP and CodeIgniter, including dynamic service con gurators driven by customer/
location information.
• Used XML/XSLT to generate user interfaces from service matrices and con guration data; integrated with central enterprise systems over
SOAP.
• Worked primarily with MySQL while integrating with Oracle-based central infrastructure.
• Developed a Smart Home / IoT pilot using Raspberry Pi and Z-Wave devices for monitoring and automation, including a C-based REST
controller integrated with central monitoring infrastructure.
Technologies: PHP, CodeIgniter, MySQL, Oracle, SOAP, XML/XSLT, C/C++, Raspberry Pi, Z-Wave

Software Developer — GeeksForLess / Hostopia ~2009–2012

Two engagements around the MotoCMS period.
• Developed applications and integrations for a hosting-management platform, including PHP APIs for uni ed management of hosting-related
services.
• Worked on Asterisk/telephony management functionality, Drupal-based shared content/data services and social-network integrations.
• Participated in a taxi-dispatch pilot, including a Delphi vehicle communication component; helped migrate communications from TCP to a
custom UDP-based protocol as the pilot eet grew from about 10 to around 100 vehicles.
• Added VoIP communication functionality between drivers and customers.
Technologies: PHP, Drupal, Delphi, TCP/UDP, API integrations, Asterisk/VoIP

Software Developer — MotoCMS ~2010–2011

• Developed backend functionality for a Flash-based website builder/CMS.
• Built an internal translation-management application used to manage translations delivered into the main product.
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• Integrated a web-based graphical editor into the CMS and implemented its backend integration.
• Developed company-site functionality and WordPress integrations.
Technologies: PHP, Zend Framework, MySQL, JavaScript/jQuery, WordPress

Software / Hardware Engineer — Crocus Com 2002–2006

Developed telecom hardware, embedded rmware and supporting software for production systems.
• Worked on the ARB telecom complex deployed at an Odessa telephone exchange, including subscriber/station communication and per-second
billing functionality.
• Developed ATmega128 rmware and DSP functionality in AVR Assembly, including digital ltering/Fourier-based processing for telecom
signalling.
• Developed FPGA-based E1 cross-connect logic supporting four E1 streams and timeslot switching, plus a digital PLL for stream
synchronization.
• Developed an E2 aggregation/modem module combining four E1 streams using VHDL, Verilog and schematic capture on Xilinx Virtex
devices.
• Developed Delphi monitoring/control software and software for an automated ARB-1 hardware test stand.
• Continued development of commercially produced mains-protection devices based on ATtiny controllers, including rewriting rmware from
Assembly to C.
Technologies: C, AVR Assembly, Delphi, ATmega/ATtiny, FPGA, VHDL, Verilog, Xilinx Virtex, E1/E2, DSP
EARLIER ENGINEERING EXPERIENCE
Before moving primarily into web/backend engineering, worked on embedded, industrial and telecom projects including PC-controlled
industrial machinery, PIC-based burner control, environmental automation, radio-relay infrastructure, automotive telematics and remote
equipment monitoring. Notable work included an ATmega2560 GPS/GPRS vehicle telematics system with remote control and an OTA rmware-
update mechanism featuring automatic rollback after failed self-tests; industrial machinery control through custom PC/hardware interfaces; and
STM32-based fuel-dispenser control with Bluetooth/Android integration.
EDUCATION
Engineering degree — 1999

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