Jobs

Опис
 

Ми шукаємо Senior PHP Developer для роботи над високонавантаженим проєктом еквайрингу з мікросервісною архітектурою.

Система складається з великої кількості сервісів, що обробляють платіжні транзакції, інтеграції з банками та PSP, antifraud-процеси та внутрішні фінансові розрахунки. Архітектура побудована на асинхронному PHP із використанням ReactPHP та message-driven взаємодії через RabbitMQ.

Ми очікуємо
 

1️⃣ Глибокі знання PHP

• PHP 8.1+ (типізація, readonly, enums, attributes)
• Розуміння:
  • memory model
  • GC
  • OPcache
  • JIT (базово)
• Composer (advanced usage)
• PSR стандарти (PSR-7, PSR-15, PSR-3, PSR-18)

2️⃣ Асинхронний PHP (ключова вимога)

Досвід з одним зі списку:

• Swoole
• RoadRunner
• ReactPHP
• Amp

Потрібні знання:

• Розуміння event loop
• Coroutine / Fiber
• Non-blocking I/O
• Worker lifecycle management
• Досвід з long-running processes

3️⃣ Архітектура та high-load

• Проєктування:
  • REST API
  • gRPC (бажано)
  • Message-driven architecture
• Досвід з:
  • CQRS
  • Event-driven architecture
  • Clean Architecture / DDD
• Робота з чергами:
  • RabbitMQ
  • Kafka
  • Redis Streams

4️⃣ Бази даних

• MySQL / MariaDB (оптимізація запитів)
• PostgreSQL (transaction isolation levels)
• Redis (кеш, pub/sub)
• Розуміння:
  • Connection pooling
  • Deadlocks
  • Index strategies

5️⃣ Performance & Optimization

• Оптимізація:
  • memory leaks у long-running worker
  • CPU bottlenecks
  • blocking calls detection

6️⃣ DevOps / Infrastructure

• Docker (multi-stage builds)
• Kubernetes (бажано)
• Nginx
• CI/CD
• Linux internals (signals, process management)

7️⃣ Тестування

• PHPUnit / Pest
• Integration testing
• Contract testing
• Mocking async flows

8️⃣ Security

• OWASP Top 10
• Rate limiting
• JWT / OAuth2
• Secure session handling
• Encryption basics (AES/RSA)

Майбутні задачі

• Розробляти high-load backend-сервіси на PHP 8.1+ з використанням async-стеку (ReactPHP).
• Будувати та підтримувати message-driven архітектуру з використанням RabbitMQ.
• Проєктувати fault-tolerant, масштабовані системи (event-driven, мікросервіси).
• Оптимізувати продуктивність long-running воркерів (non-blocking I/O, memory management).
• Забезпечувати якість коду, тестування та технічне лідерство.
• Брати участь у production-підтримці та архітектурних рішеннях.

Буде плюсом
 

• Досвід у fintech / high-load
• Робота з legacy PHP → async migration
• Міграція з FPM на ReactPHP
• Production debugging async систем

Умови роботи
 

• Робочий графік: пн-пт з 09:00 до 18:00
• Формат роботи: remote / hybrid / office
• Оплачувані відпустки та лікарняні
• Широкі можливості для професійного та кар'єрного зростання
• Офіційне працевлаштування

We’re looking for a Staff Software Engineer (Front-end) to join our professional team!

Location: Remote (EU, US, CA, etc.)
Working Hours: US Time Zones (ET–PT)

Your responsibilities will include:

• Designing and architecting responsive, high-performance web applications.
• Building rich, interactive user interfaces for both end users and internal teams.
• Driving end-to-end solutions for complex and ambiguous technical challenges.
• Developing scalable front-end systems, including component libraries and data-driven dashboards.
• Collaborating closely with product managers, designers, and back-end engineers.
• Improving UX based on user feedback and usage analytics.
• Working on systems handling large-scale, high-load interactions.
• Identifying and eliminating inefficiencies in systems and processes.
• Contributing to continuous improvement of engineering practices and workflows.

What we expect from you:

• 12+ years of experience in software engineering.
• Strong expertise with React (hooks, context, modern patterns).
• Hands-on experience with state management libraries (Redux, Zustand, Recoil, etc.).
• Experience with REST or GraphQL APIs.
• Solid knowledge of HTML5, CSS3 (Flexbox/Grid), and modern styling approaches (CSS-in-JS, Tailwind, etc.).
• Understanding of accessibility standards (WCAG) and responsive design.
• Strong UI/UX sense with attention to detail.
• Experience working with design tools (Figma, Sketch) and prototyping workflows.
• Familiarity with real-time technologies (WebSockets, subscriptions) and data visualization libraries.
• Experience collaborating with stakeholders and incorporating feedback into product improvements.
• English: Upper-Intermediate+.
• Proactive mindset with strong ownership and problem-solving skills.

Will be a plus:

• Experience with ClojureScript, Reagent, or Reframe.
• Experience in SaaS or operational platforms.
• Experience working in distributed teams.
• Growth mindset and openness to feedback.

Interview stages:

• Screening with a recruiter.
• Technical interview (internal).
• 2 technical interviews (client side).

What We Offer:

• Work at a Top-employer company (according to DOU 2025).
• A strong culture built on empathy, trust, openness, and real care for employees.
• Competitive compensation with regular reviews.
• Personal learning budget and access to top HR tools, platforms, and practices.
• Team events and regular team-building activities.
• Flexible hybrid work model with an office in central Kyiv.
• Please note: this position does not include paid vacation, but sick leave is provided.

Our client is the leader in the Early Childhood Education (ECE) sector, providing the most widely used developmental assessment and curriculum system in the US. They are looking for a talented, innovative and creative Golang Developer to join the platform team. They believe that great technology experts are also software generalists who are unafraid to jump up and down the stack to solve the problems that come their way. If you thrive in fast-paced environments, and like working on software that supports millions of daily users, then this opportunity is exactly what you’ve been looking for!

Their Software Engineering team is responsible for building out SaaS solutions used by educational organizations across the globe. The team works on a wide variety of projects, solving existing problems and enabling new business objectives. Their platform is evolving, so you need to be someone who can build new functionality and learn new technologies quickly as well as be able to maintain and extend existing code to support organizational needs.

As a Senior Golang Engineer, you will:

• Develop new features, components, and modules to support organizational growth;
• Implement a robust set of services and APIs to power high-trafficked SaaS platform;
• Participate in planning, analysis, and design of new software solutions;
• Investigate, troubleshoot, and remedy performance bottlenecks in the application flow;
• Learn new technologies and keep up with both traditional and emerging best practices;
• Works independently and collaborates with other team members to ensure successful project delivery.

• Senior level knowledge of Golang;
• 8+ years of production experience in software engineering and SaaS product development;
• Strong communication and listening skills; ability to communicate complex technical problems, root cause analysis, and propose solutions;
• At least Upper-intermediate level of English (B2 or higher);
• Experience with designing and building scalable solutions;
• Experience with modern design patterns such as SOA and microservice architecture;
• Strong knowledge of relational databases (ex. PostgreSQL) and Databricks (a plus);
• Excellent debugging and testing skills, and an interest to quickly learn new technologies;
• Experience with Agile methodology and software development;
• Commitment to following security, accessibility and performance best practices;
• Self-starter with strong sense of collaboration, teamwork, and accountability;
• Ability to quickly adopt to new environment;
• Working knowledge of AWS and familiarity with its services (Kubernetes, Redis, SQS/SNS, etc.);
• Experience using AI developer tools (e.g., Codex) is a plus.

• Competitive market salary;
• Fully remote work;
• Convenient and somewhat flexible work hours (you will have to work until 8 pm Kyiv time GMT+3, or 1 pm EST);
• 28 days of paid time off per year;
• Working on a very socially valuable product, alongside a highly professional, US-based, international team;
• Interesting challenges and the ability to grow and learn.