Maksym

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Maksym
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[відкрити контакти](див. вище в блоці «контактна інформація») nimchyn
SENIOR BACKEND SOFTWARE ENGINEER
TOP skills Professional Software Engineer with 7 years of experience delivering high-
performance backend systems and scalable service architectures. Specializing in
PHP 7.x, 8.x, Laravel
PHP and Go, I design and build reliable microservices, REST/gRPC APIs, and cloud-
Go
native solutions that support business-critical operations. Successfully optimized
OOP, SOLID principles, DRY, KISS, design patterns
MySQL, PostgreSQL, SQLite the product’s payment processing subsystem, increasing throughput from ~0.5
Composer, maven orders per second to 8 orders per second while ensuring stability under high load.
ООP, SOLID, DDD, PSR
PHP-FPM, Opcache, performance/RPS tuning
gRPC, protobuf EXPERIENCE
Nginx/Apache
Swagger / OpenAPI SENIOR BACKEND SOFTWARE ENGINEER
Microservices architecture
Mythical Games, Los Angeles, California | 2023 - Present
Designing RESTful and gRPC APIs
GIT, API versioning, backward compatibility Owned end-to-end payment systems within a crypto Web3 platform: payment
Redis (caching, locks, streams), ElasticSearch flows, transaction lifecycle, provider integrations, and failure handling.
Docker, Kubernetes
Actively handled LiveOps in production: monitoring, incident response, root-cause
Automated build & deploy pipelines, GH actions
CircleCI, ArgoCD, Vault, Grafana analysis, hotfixes, and reliability improvements.
Temporal Built payment microservices from scratch using PHP (Laravel) and Go, designed for
Linux/mac environment mastery high-load, scalability, and fault tolerance.
Bash/SH scripting Implemented and optimized backend services for the highest RPS, performed load
Unit/integration/load testing and stress testing, and resolved performance bottlenecks.
Static analysis: PHPStan, Psalm
Orchestrated complex, long-running payment workflows with Temporal.io, ensuring
OAuth 2.0, JWT
consistency, retries, and reliable recovery.
OWASP Top 10
Data privacy (GDPR basics)
Mentoring mid/junior engineers
Ownership of features/services end-to-end
BACKEND SOFTWARE ENGINEER
Architectural decision-making Axon, Kyiv, Ukraine | 2020 - 2023
Technical planning
Developed and launched multiple SaaS platforms from scratch, covering system
design, core business logic, and production deployment.
EDUCATION Designed backend architectures for scalable, multi-tenant applications, focusing on
reliability, maintainability, and clean domain boundaries.
SOFTWARE ENGINEERING - MASTER DEGREE
Implemented core backend functionality using PHP (Laravel) and related
National Aviation University, Kyiv, Ukraine ecosystem tools, ensuring stable performance in production.
2021 - 2022
Mentored junior developers, conducted code reviews, guided architectural
SOFTWARE ENGINEERING - BACHELOR DEGREE decisions, and improved overall code quality and team productivity.

National Aviation University, Kyiv, Ukraine
2017 - 2021 BACKEND SOFTWARE ENGINEER
1+1 media, Kyiv, Ukraine | 2019 - 2020
LANGUAGES Developed and maintained internal platforms and tools using custom in-house
frameworks as well as Symfony and Laravel.
Ukrainian
Implemented core backend functionality, business logic, and integrations, working
Russian
English closely with existing legacy and proprietary solutions.
Slovak Contributed to framework-level code, improving reusability, stability, and developer
experience across internal projects.

BACKEND SOFTWARE ENGINEER
Galanix IT, Kyiv, Ukraine | 2018 - 2019
Developed and maintained a single SaaS product using Laravel, working on core
backend functionality and business logic.
Implemented new features, fixed production issues, and participated in ongoing
improvements of the application.
Gained hands-on experience with the full development lifecycle, from feature
implementation to deployment and production support.