Senior Software Developer

На данный момент Senior Software Developer.

Мои компетенции и опыт

Senior Software Developer

нужен доступ к резюме | нужен доступ к резюме | Canada

нужен доступ к резюме | нужен доступ к резюме

Senior Software Developer with 17+ years building high-load backend systems handling 100M+ daily users, $785B+ monthly trading volume, and 500+ enterprise integrations. Deep expertise in fintech (payments, crypto, forex), ad-tech data pipelines, and platform engineering. Track record of optimizing legacy systems (5x throughput gains), designing microservice architectures, and leading small teams. Open-source contributor. Pragmatic, detail-oriented, and focused on delivering maintainable systems at scale.

EXPERIENCE

Senior Software Developer (Product Engineering) | ApplyWave | Remote/Canada

• Built job-search SaaS platform with Laravel and React, featuring нужен доступ к резюме + visa sponsor database across 6 countries, delivering full-stack features from design to production deployment.

• Implemented a resume management module: structured and free-form editors, version history with rollback, import/export (PDF/Word), archiving, and multilingual translation via DeepL.

• Built job management workflows with kanban/table views, AI parsing and analysis of job descriptions, resume-to-job matching (match score), status pipeline, and deduplication using fingerprinting.

• Developed contact discovery and outreach tooling: Apollo API search and relevance ranking, message generation (email/LinkedIn/cover letters) with tone selection, translations, and message status tracking.

• Implemented billing and subscriptions: free/paid tiers, Stripe integration, pay-per-use credits, add-on credit purchases, usage tracking, and subscription lifecycle management (upgrade/downgrade/cancel).

• Integrated multiple external services (OpenAI, Apollo, DeepL, Stripe) with monitoring, health checks, rate limiting, spam protection, and resilient background processing using Redis queues and failed-job handling.

• Built an admin panel to manage users, resumes, jobs, contacts, KPIs, queues/scheduler, and operational visibility across third-party APIs.

• Containerized the application with Docker and established automated testing (PHPUnit) and CI/CD pipelines to enforce quality and repeatable releases.

• Developed Chrome browser extension in JavaScript for streamlined job tracking, enabling one-click job saving and seamless sync with the main platform.

Software Developer (Backend Integrations / Modernization) | Trader Corporation | Canada

• Modernized legacy PHP 5→7 monolith for Canada's largest auto marketplace ( нужен доступ к резюме ), implementing MVC architecture with Symfony components and dependency injection.

• Optimized XML/JSON feed ingestion processing 50K+ dealer listings daily, achieving 5x throughput improvement using parallel imports and Redis-backed queues.

• Led decomposition of monolith toward microservice boundaries, extracting core responsibilities and reducing intermodule coupling.

• Containerized application with Docker, collaborating with DevOps on deployment architecture and CI/CD improvements.

• Conducted code reviews and maintained technical documentation, supporting cross-team delivery in Agile environment.

Senior Software Developer (Microservices & API Design) | Kinduct | Canada

• Built Laravel microservices and REST APIs for athlete management platform serving 500+ professional sports teams including half of NBA and multiple NHL, NFL, MLB organizations.

• Designed clean API contracts with PostgreSQL backend, focusing on maintainable architecture and operational readiness.

• Optimized real-time performance using Redis caching and database query tuning for athlete tracking workloads.

• Deployed services via Docker and AWS, collaborating on integration strategy and rapid prototyping.

Contract Software Developer (Laravel / Crypto Payments) | PointPay | Remote/UK

• Built Laravel-based crypto marketplace from scratch for PointPay ecosystem (1M+ users), participating in architecture decisions and end-to-end delivery of production features.

• Implemented crypto payment modules: balances/accounts, holds/escrow, internal transfers, and settlement flows with atomic operations for EU-licensed fintech platform.

• Designed event-driven integration layer (event bus) connecting Docker-containerized marketplace with payment core, using queue-based processing for reliability at scale.

• Enforced security requirements for payment operations: validation, encryption, access control, failure handling, and audit-friendly flows for regulatory compliance.

• Delivered HR Talent marketplace: hiring workflows, messaging, dispute management, and transaction history tracking.

Software Developer (High-Traffic Platform) | Mindgeek (now Aylo) | Canada

• Optimized legacy PHP monolith serving 100M+ daily visitors (top-10 global traffic platform), refactoring critical scripts and improving response times and memory efficiency.

• Contributed to company-wide monolith-to-microservices migration, building new Symfony-based services while maintaining legacy PHP codebase and integrating both through REST APIs.

• Joined CRM team and led integrations between new services and core platform, leveraging deep codebase knowledge and API experience.

• Built trust-and-safety REST APIs processing 15TB+ daily video uploads, implementing ffmpeg-based media transcoding and text/media verification pipelines.

• Integrated new file management system improving content handling for petabyte-scale video storage.

• Architected caching strategies (Redis, Memcached, MySQL/PostgreSQL) for high-traffic endpoints, contributing through code reviews and architecture discussions.

Software Developer (Back-Office Platform / Secure Integrations) | Exness | Cyprus

• Built secure back-office platform for global forex (Exness, $785B+ monthly trading volume), managing payments, withdrawals, and fraud analytics across multiple fintech products.

• Designed standardized microservices integration layer with consistent REST API contracts; integrated 30+ internal services enabling teams to onboard new products following defined protocols.

• Created open-source Laravel library for rapid REST API integration, reducing service onboarding time and adopted across engineering teams.

• Implemented backend orchestration: request/response normalization, encryption, and secrets management via HashiCorp Vault.

• Delivered enterprise authentication for 500+ internal users: LDAP integration, 2FA, and role-based access control for regulated fintech operations.

• Ensured data protection with encryption and digital signatures meeting financial regulatory requirements across service boundaries.

• Integrated with legacy Python services processing high-volume trading data via Kafka, while implementing нужен доступ к резюме event bus for real-time communication between new Go microservices on Kubernetes.

• Built CI/CD pipelines, PHPUnit test automation, and business dashboards (Salesforce reporting) improving operational visibility.

Software Developer (Ad-Tech Backend / Data Pipelines) | Appness | Russia

• Built Laravel backend and public REST API for Facebook ads marketplace (first CPA-based platform for mobile advertising), managing millions of creative assets and performance data.

• Developed data pipelines to ingest, validate, and normalize ad creatives (images/videos) and metrics from Facebook API, enabling creative-level performance tracking at scale.

• Implemented perceptual hashing algorithm for creative deduplication, detecting near-duplicate assets and reducing storage costs by ~40%.

• Migrated compute-intensive hashing from PHP to Python/AWS Lambda, integrating with S3 storage for serverless image processing.

• Scaled throughput 5x by parallelizing heavy processing via Redis-backed job queues with multiple workers.

• Designed data architecture (S3 + PostgreSQL/MongoDB) for creative storage and analytics with robust API error handling.

Lead Developer (Platform Integrations / Data Modeling) | Turbodealer | Russia

• Led 3-person team building auto listings syndication platform, enabling 500+ dealers to list once and publish automatically across 100+ partner websites.

• Designed flexible data model normalizing heterogeneous vehicle attributes (body types, transmissions, specs) into partner-specific schemas for seamless multi-platform compatibility.

• Built universal integration adapters and ad-management pipeline processing 10K+ listings daily across 100+ external integrations.

• Continuously optimized platform performance: New Relic profiling, query optimization, index tuning, and Redis caching to handle growing data volume on MariaDB.

• Migrated high-read workloads to MongoDB for denormalized listing documents, significantly improving syndication throughput.

• Architected highly available database on Microsoft Azure (replication/failover) after securing Azure startup grant.

Software Developer | Intertexnika | Russia

• Built internal CRM and call center systems with custom reporting and billing modules.

• Resolved data bottlenecks and implemented domain-based authentication with fine-grained access control (ACLs).

• Developed salary calculation tools and interactive product catalogs for internal operations.

EDUCATION

Bachelor of Computer Software Engineering | Institute of Business, Information Technology, and Finance

SKILLS

Languages: PHP, Go, JavaScript, Python, SQL, Bash

Frameworks: Laravel, Symfony, нужен доступ к резюме , React, jQuery, Doctrine

Frontend: HTML5, CSS3, Webpack

Databases: MySQL, PostgreSQL, MongoDB, Redis, Neo4j, Memcached

Message Queues: Redis Queues, Kafka, AWS SQS

Cloud & DevOps: AWS (S3, Lambda, SQS), Docker, Kubernetes, CI/CD

Security: HashiCorp Vault, LDAP, 2FA, RBAC, Encryption

Monitoring: New Relic, Sentry

Integrations: Stripe, OpenAI API, Facebook API, Salesforce, DeepL, Payment Systems

Testing: PHPUnit, automated testing strategies

Tools: Git, Jira, Agile/Scrum

Open Source: php-wifi (author), laravel-rest (author)

Protocols/Standards: REST, JSON, XML, HTTP, WebSockets, Protobuf, gRPC