Nikolay Butko

Senior Software Engineer

7 yrs 3 mos experience

Key Highlights

Led high-load payment gateway development in FinTech.
Expert in CRM and business process automation.
Strong team leadership and mentoring experience.

Stackforce AI infers this person is a Backend Engineer specializing in FinTech and CRM solutions with strong leadership capabilities.

Contact

Skills

Core Skills

Go (programming Language)MicroservicesPhpLaravelTeam LeadershipCrmProduct DevelopmentSoftware Development

Other Skills

GrafanaKibanaJaegerTest-Driven DevelopmentBehatSmall Team ManagementGraphQLRabbitMQLeading Development TeamsSymfony FrameworkDomain-Driven Design (DDD)XdebugPHPUnitDockerClickUp

About

Backend Engineer and Team Lead with a strong focus on building scalable, secure, and business-driven systems. Experienced in Go, PHP (Symfony, Laravel), and microservices architecture, with a proven track record in CRM and ERP platforms, business process automation, and high-load FinTech solutions. FinTech expertise includes payment gateway integrations, PSP connectivity, crypto solutions, and performance monitoring using tools like Kibana, Grafana, and Sentry. Skilled in designing fault-tolerant architectures, optimizing system performance, and ensuring compliance in regulated environments. CRM and Automation are central to my work — from streamlining complex workflows to integrating third-party services that reduce manual effort and boost operational efficiency. Actively exploring and applying AI-powered tools for automation, intelligent data processing, and enhancing decision-making in business systems. Experienced in leading teams, setting priorities, mentoring developers, conducting code reviews, and aligning technical execution with product vision and business objectives. Bachelor’s degree in Cyber Security.

Experience

7 yrs 3 mos

Total Experience

1 yr 2 mos

Average Tenure

Current Experience

Protonix technologies

Senior Software Engineer (FinTech)

Aug 2023 – Oct 2025 · 2 yrs 2 mos · Remote

Go, PHP (Symfony), GraphQL, API, REST API
Microservices, RabbitMQ, DDD, TDD
Tech Stack: Go, PHP (Symfony), GraphQL, Microservices, RabbitMQ, DDD, TDD, PostgreSQL/MySQL, Redis, RabbitMQ, Docker, CI/CD, Kubernetes, Grafana, Jaeger, Kibana, Sentry, XDebug.
Key Responsibilities:
Developed and maintained a high-load payment gateway, integrating APM, PSP, crypto, Google Pay, Apple Pay, and 3rd-party services.
Led refactoring, version upgrades, and implementation of new product features.
Wrote unit, feature, and integration tests, improving platform stability and reliability.
Identified and resolved security bottlenecks, introduced preventive architecture and code-level improvements.
Collaborated with cross-functional teams: Product, QA, DevOps, and Integration.
Proposed and implemented internal process optimizations to improve team efficiency and inter-team communication.

Go (Programming Language)MicroservicesPHPGrafanaKibanaJaeger+11

Fixiq pro

Senior PHP Developer (CRM, SaaS)

Aug 2022 – Jul 2023 · 11 mos · Remote

PHP (Laravel), Go, PostgreSQL
Microservices, ElasticSearch, PHPUnit
Tech Stack: PHP 8.1, Golang, Laravel, PostgreSQL, Redis, Redis Queues, ElasticSearch, PHPUnit, XDebug
Architecture & Patterns: DDD (Aggregates, DTOs, Ubiquitous Language), Application Layer Actions, Repository, Mapper, Command, Factory, Builder, Observer, Facade
Testing: Pest, PHPUnit, PHPStan
DevOps: Docker, Kubernetes, GitHub Actions, Datadog, Kibana
Workflow: Git Flow, Conventional Commits & Logs, ClickUp, Confluence, Postman (Contract-first API development), SCRUM
Key Responsibilities:
Delivered new features, performed refactoring, and ensured high test coverage via Pest/PHPUnit
Participated in decomposition, estimation, and technical planning of tasks
Conducted code reviews, shared architectural decisions with the team
Actively participated in groomings, retrospectives, and daily syncs
Proposed and implemented internal improvements to streamline development workflows
Focused on maintainability and code clarity, contributing to long-term system suppor

PHPGo (Programming Language)DockerClickUpCRMProduct Development+14

Nda

Technical Lead (CRM, SaaS)

Jan 2022 – Sep 2022 · 8 mos · Remote

Team Management, Lead, PHP (Symfony, Laravel), MySQL
AWS, Behat, PHPUnit
Tech Stack: PHP, Laravel, Bitrix, Symfony, MySQL, Memcached, Redis, Docker, AWS, Git, PHPUnit, Feature Testing, 3d party API
Key Responsibilities:
Designed and developed core product features, including planning, decomposition, and estimation
Took part in architecture design for the Warehouse module in collaboration with cross-functional teams
Created BRDs (Business Requirement Documents) based on client or business needs
Integrated multiple external APIs (payment, marketing, internal systems)
Participated in daily standups, grooming sessions, and cross-team coordination
Acted as a communication bridge between teams, leading discussions and aligning priorities

Strategic CommunicationsIT LeadershipCRMLaravelPHPTeam Leadership+4

Elbrus climbing

Engineering Team Lead (CRM)

Jan 2020 – Jan 2022 · 2 yrs · London, England, United Kingdom · Remote

Lead, Plan, Automation, CRM
PHP (Laravel), Docker, Redis
Tech Stack: Laravel, PHP 7.4, CRM, MySQL, Redis, Docker, Git, Jira
Key Responsibilities:
Led a team of 3 developers: planning, decomposition, task management, and release delivery
Designed and developed a custom Marketplace platform within Bitrix
Built architectural prototypes and handled risk management
Created and maintained BRDs, aligned features with business needs
Developed and customized Bitrix24 CRM modules and components
Integrated CRM with external systems via REST APIs: 1C, SendPulse, LeeLoo, BioTime, Unisender, and websites
Expanded and refined analytics features, including custom reporting
Enhanced mobile responsiveness and adapted solutions for smartphones