Jobs Fullstack

Ми шукаємо досвідченого Shopify девелопера для проєкту зі створення e-commerce магазину преміум-категорії (продаж діамантів).

Що потрібно зробити

• Створити повноцінний Shopify-магазин з нуля.
• Інтегрувати AR / реальний 3D-рендер через iframe (Inova або подібний софт).
• Підключити існуючий GraphQL Inventory API (пошук, фільтри, характеристики товарів).
• Реалізувати коректний checkout, оплату та базові e-commerce флоу.
• Забезпечити високу швидкість та якість UI/UX.
• Налаштувати усі технічні деталі магазину (колекції, категорії, варіанти, SEO, адаптивність).

Вимоги

• Комерційний досвід роботи з Shopify 3+ років.
• Глибоке знання Shopify Liquid, темінгу та кастомізації.
• Досвід роботи з GraphQL .
• Розуміння роботи з iframe та інтеграції сторонніх 3D/AR-рендерів.
• Досвід оптимізації продуктивності магазинів.
• Вміння швидко працювати з нетиповими кастомними задачами.

Буде плюсом

• Досвід у high-end e-commerce (ювелірка, luxury).
• Досвід з Inova або іншими 3D-візуалізаторами.
• Розуміння SEO для Shopify.

Формат роботи

• Проєктна зайнятість ~6 тижнів.
• Робота напряму з фаундером та технічним менеджером.
• Оплата — погодинна або фікс за весь проєкт (обговорюється).
• Старт — ASAP.

Kozak Group - технологічна компанія, що створює цифрові продукти та рішення для міжнародних клієнтів.

Ми фокусуємось на:

• складних web-проєктах
• масштабованих системах
• інтеграції сучасних технологій, включаючи AI/LLM

Наша мета - не просто писати код, а будувати рішення, які дають бізнес-результат. Зараз активно розвиваємо напрямок AI-first продуктів і автоматизації

Шукаємо сильного Tech Lead (JavaScript), який мислить як інженер, архітектор і партнер бізнесу. Ця позиція про прийняття рішень, вплив на продукт і розвиток AI-напрямку

Що ви будете робити

• Проєктувати архітектуру (web + AI інтеграції)
• Працювати з клієнтами:
  • discovery
  • estimations
  • технічні рішення
• Драйвити data-driven підхід у розробці
• Інтегрувати AI (LLM, automation, AI features)
• Лідити команду інженерів
• Робити code review і задавати стандарти

Техгнічний стек

• Backend: Node.js (NestJS / Express), TypeScript
• Architecture: microservices, distributed systems, API design
• Databases: PostgreSQL, Redis, NoSQL
• Cloud: AWS, Docker, CI/CD
• Scaling: queues (Kafka / RabbitMQ), caching, performance optimization
• Data-driven development: metrics, monitoring, product analytics
• AI/LLM: OpenAI, LLM integrations, automation

Must-have:

• 8+ років у розробці
• 3+ роки як Tech Lead
• Сильний JavaScript стек
• Досвід архітектури (scalable / distributed systems)
• Досвід роботи з англомовними клієнтами

Critical:

• Data-driven mindset
• Практичний інтерес до AI (LLM / automation / AI features)

Ми пропонуємо

• Конкурентну ринкову оплату.
• Гнучкий графік: core-hours 11:00–17:00 (UTC+3).
• Оплачувані відпустки, лікарняні, дей оффи.
• Часткова або повна компенсація курсів, тренінгів, сертифікацій.
• Бухгалтерська та юридична підтримка.
• Надання усіх необхідних тулів, АІ інструментів для роботи.
• Курси англійської.
• Віддалена співпраця (за бажанням можна і в сучасному офісі у Києві з генератором, лаунж-зоною та pet-friendly-політикою).
• Культуру прозорої комунікації, тех-мітапи, благодійні ініціативи та Game-&-Pizza Fridays.

Хайрніг процес

1. HR Intro (45 хв).
2. Експертне інтерв’ю (60-90хв).

Important (при відгуку):

• вкажіть фінансові очікування
• що думаєте про АІ

Долучайся - зробимо великі проєкти разом!

Про компанію 

Extracode українська продуктова компанія, наш основний проект EnergySuite працює у великих енергетичних компаніях України, які обслуговують мільйони клієнтів. Проект складається із desktop app, web app, android app і потребує активного розвитку. Backlog проекту розрахований на довгий термін, є великий перелік нових задач. 

Опис вакансії: 

Ми шукаємо розробників з релевантним досвідом роботи, які готові приєднатись до проекту. Для початку кандидату буде запропоновано напрямок Asp.net MVC, який включає наступний стек технологій: .net 8, MS SQL Server. У успішних кандидатів є прекрасна можливість познайомитись з високонавантаженим проектом, оцінити, що таке робота з БД розміром 0,5-1+ Тб та розробка для корпоративного клієнта. 

Від кандидатів очікуємо гарні базові знання .Net та SQL. Бажано мати досвід роботи з nHibernate / Entity Framework / ADO.NET, WPF/WinForms, LINQ, шаблону проектування MVC, розуміння принципів IoC, DI. Плюсом буде досвід розробки з використанням бібліотек DevExpress. 

Підійде для: 

Кандидатів з досвідом роботи з C# та SQL (Postgre, MS SQL), готових працювати над MVC застосунками з використанням перерахованих у вимогах вище платформ та фреймворків. 

Пропонуємо: 

Участь в цікавому проекті. Конкурентну заробітну плату з регулярним переглядом та можливостями кар'єрного зростання. Комфортні умови праці в дружній атмосфері з гнучким графіком роботи, оплачувані відпустка та лікарняні. Наш офіс знаходиться в пішій доступності від метро КПІ або Лук’янівська, але робота ведеться переважно віддалено. 

UGLA — це інноваційна українська ERP-система, на ринку з 2022-го року, що допомагає бізнесу автоматизувати процеси, відійти від хаосу та будувати прозору структуру. Ми створюємо продукт, який конкурує зі світовими гігантами, і зараз шукаємо сильного Middle Full-Stack Developer, щоб разом масштабувати систему та впроваджувати новий функціонал.

Що ми очікуємо від вас:

Ми шукаємо розробника, який впевнено почувається як на Back-end, так і на Front-end, розуміє принципи роботи високонавантажених систем та вміє писати чистий код.

Наші технології:

• Back-end: Глибокі знання PHP 8 та досвід роботи з сучасними фреймворками.
• Database: Впевнене володіння MySQL (оптимізація запитів, проектування архітектури БД).
• Front-end: Досвід роботи з JavaScript та фреймворком Vue.js.
• Infrastructure: Обов'язкові навички роботи з Docker (контейнеризація середовища розробки).
• Caching & Queues: Розуміння принципів роботи Redis та черг повідомлень (RabbitMQ).
• Tools: Git, Composer, NPM.

Буде плюсом:

• Досвід розробки ERP, CRM або складних фінтех-проектів.
• Розуміння архітектурних патернів та принципів SOLID/DRY.

Чим ви будете займатися:

• Розробка та підтримка нових модулів ERP-системи UGLA.
• Проектування архітектури бази даних та оптимізація існуючих рішень.
• Інтеграція системи з зовнішніми сервісами через API.
• Написання якісного, підтримуваного коду та участь у Code Review.
• Робота в команді за гнучкими методологіями розробки.

Що ми пропонуємо:

• Продукт з сенсом: Ви будете працювати над українською ERP-системою, яка реально допомагає вітчизняному бізнесу зростати.
• Сучасний стек: Жодного застарілого коду — тільки PHP 8, Docker та актуальні версії бібліотек.
• Професійне зростання: Можливість впливати на технічні рішення та архітектуру продукту.
• Стабільність: Гідна заробітна плата за результатами співбесіди та стабільне навантаження.
• Гнучкість: Можливість працювати віддалено або в комфортному офісі.
   

Не працюємо з рекрутерами, не аналізуємо резюме через ШІ, Ваші резюме розглядаються керівництвом компанії напряму.

HOLYWATER TECH — це технологічна компанія, яка створює розважальні продукти на перетині людської творчості та штучного інтелекту. Вони є прикладами ШІ-нативних платформ, що переосмислюють способи сторітелінгу та дають змогу будь-кому стати творцем. Екосистема продуктів HOLYWATER TECH включає:

→ My Drama — стримінгову платформу вертикальних серіалів, №1 серед європейських та американських компаній у ніші

→ My Passion — цифрову бібліотеку книг №1 у понад 10 країнах світу

→ My Muse — платформу ШІ-генерованих серіалів, що відкриває нову еру сторітелінгу

HOLYWATER TECH сьогодні — це:

• стратегічне партнерство з FOX Entertainment та Dhar Mann Studios
• придбання VFX-стартапу Jeynix
• 100+ млн завантажень застосунків
• $22 млн інвестицій на розвиток вертикальних серіалів у США
• 30+ міжнародних нагород, зокрема Muse Creative, W3, Telly, Runway AI Film Festival, Lovie
• 100+ млн годин переглянутого та прочитаного контенту
• провідні позиції у своїх нішах на ринках США та Європи

Ми створюємо нові формати, історії та будуємо світ, де єдине обмеження — людська уява. І зараз шукаємо Full-Stack Lead-а на продукт My Passion, хто готовий/-а долучитися й творити його разом із нами.

Твоя місія:

• Автоматизувати рутину через AI-first підхід, а не виконувати її: будувати скрипти, пайплайни та інструменти, які знімають повторювану роботу — з себе та з команди;
• Проектування та розвиток архітектури frontend (React/Next.js) та backend (Node.js/NestJS або аналоги);
• Code review, встановлення стандартів якості коду та best practices;
• Декомпозиція задач, планування спринтів спільно з Product Manager;
• Менторство та технічний онбординг розробників команди;
• Вибір та інтеграція нових технологій, бібліотек, інфраструктурних рішень;
• Взаємодія з DevOps щодо CI/CD, моніторингу та деплою;

• Участь у product discovery, технічна оцінка фічей на ранньому етапі.

   

Для цього знадобляться такі навички та досвід:

• AI-First Mindset - щоденне використання Claude Code, Cursor або Copilot як основного інструменту розробки. AI — ваш дефолтний режим, а не додаток.
• 3+ роки комерційного досвіду (Full-Stack або Front-end);
• Front-end: React (hooks, context, performance-оптимізація), Next.js (SSR/SSG);
• Back-end: Node.js + REST/GraphQL A PI, NestJS або аналогічний backend-фреймворк;
• Досвід роботи з Docker, хмарними сервісами (AWS / GCP / Azure), TypeScript, Redis, черги повідомлень (RabbitMQ, Kafka), PostgreSQL (проєктування схем, оптимізація запитів);
• Досвід роботи у продуктових компаніях;
• Досвід менеджерської позиції або бажання розвиватися в цьому напрямку;
• Відкритість до зворотного зв'язку та вміння давати конструктивний фідбек.

Що отримаєш від нас:

• Швидке професійне зростання. Ми будуємо середовище, де розвиток — норма: лекції, бібліотеки, хакатони, школи. Компенсуємо профільне навчання й вивчення будь-якої мови, зокрема української.
   
• Гнучкий формат. Ремоут чи офіс — обирай формат, який підходить тобі.
   
• Обладнані офіси на київському Подолі та у Львові з постійним світлом від генераторів, укриттям і обідами. За кордоном HOLYWATER TECH також має офіси в Порто та Варшаві.
   
• Техніку та сервіси. Все, що треба для роботи.
   
• Особистісний ріст та well-being. Компенсуємо профільне навчання, вивчення мов, спортзал і підтримку ментального здоров’я.
   
• Відпочинок і відновлення. 20 днів відпустки + офіційні свята, безлімітні лікарняні, медстрахування в Україні після випробувального та корпоративний лікар

Чому з нами класно?

• Реальний вплив. Твої рішення прямо впливають на 85+ млн користувачів — їхній досвід, емоції й час у продукті.
   
• Жива культура. Ми створюємо середовище, де можна експериментувати й пробувати нове. Середня оцінка відповіді на питання «Наскільки тобі подобається працювати в HOLYWATER?» за результатами eNPS — 9,23/10.
   
• Автономність. Ми довіряємо рішенням команди: мінімум мікроменеджменту, максимум простору для ініціативи й впливу.
   

• Сильні люди поруч. Ми постійно челенджимо статус-кво та досягаємо нових вершин. Думати інакше й прагнути більшого — тут це підтримають.
   

  Можливо, це — твій шанс стати нашим наступним big name?

Хочеш більше про HOLYWATER TECH? Чекни це:
 

Партнерство з Dhar Mann Studios та FOX Entertainment
Інтерв'ю со-CEO Богдана Несвіта про партнерство FOX Entertainment для Forbes
Як ми створюємо короткі вертикальні серіали — на Vector Media
«Ми — альтернатива Netflix, HBO і навіть Hollywood», – Богдан Несвіт у Scroll
Про АІ-стримінг My Muse — на Dev.ua
Наші Instagram та LinkedIn — щоб бути в курсі всього, що в нас відбувається

Хочеш творити історію разом з нами у HOLYWATER TECH?

Відгукнися на вакансію!

About the Project

We are building and scaling several internal products, including a proprietary CMS and a custom CI/CD platform. Instead of relying on typical off-the-shelf solutions, our systems are designed with a heavily tailored architecture focused on performance and flexibility.

Key Responsibilities

• Technical Leadership: Lead the technical direction of the product, drive architectural decisions, mentor team members, and ensure engineering best practices across the platform.
• End-to-end feature development: Architect, implement, and support new functionality across the stack using TypeScript, React, and Node.js (Express).
• Editor & visual builder improvements: Enhance our in-house React-based builder and rich-text editor by adding new components, shortcodes, and draft/publish flows.
• Publishing engine: Support and improve our custom site generation and live preview system, including work with Server-Sent Events (SSE), HTML parsing/sanitization (htmlparser2), and Redis caching.
• State handling: Work with complex, high-frequency frontend state using Redux Toolkit, RTK Query, and Shared Web Workers for cross-tab synchronization.

Tech Stack

Languages: TypeScript, Node.js (v22+)

Frontend: React (v18), Redux Toolkit & RTK Query, Ant Design (v5), Emotion (CSS-in-JS)

Backend: Express.js, JWT-based authentication

Data & caching: PostgreSQL (pg-native), Redis (ioredis), internally developed ORM/cache layer with code generation

Tooling: Parcel, Playwright, ESLint, Prettier

What We’re Looking For

• Strong TypeScript & Node.js expertise: Deep understanding of modern TypeScript and Node.js internals, including async patterns, event loop, memory handling, and garbage collection.
• Advanced React skills: Solid experience with hooks, performance tuning, and complex state management using Redux Toolkit.
• Engineering mindset: Comfortable working beyond standard frameworks (e.g., avoiding typical solutions like Next.js/Prisma) and contributing to custom architectures, code generators, and IPC-based services.
• Tech Leadership: Experience leading engineering teams or acting as a technical lead. Ability to drive technical decisions, mentor developers, coordinate implementation efforts, and take ownership of the overall technical quality and architecture of the product.
• Ownership mentality: Proactively identify bottlenecks, suggest improvements, and take responsibility for delivering features from idea to production and monitoring.
• High autonomy: Ability to operate independently, handle unclear requirements, and navigate complex or undocumented codebases.

fullstack Engineer – Cloud & AI Platform Development, #Kyiv office, 4-6k$, upper English 

About the Role

We are seeking a Software Engineer to support the development of a secure, cloud-based platform that will combine AI-assisted workflows, third-party API integrations, data processing, automation, and internal analytical tools.

The role requires a developer with strong practical experience in Amazon AWS or comparable cloud infrastructure, hands-on work with AI/LLM APIs, and the ability to build reliable backend services, integrations, and user-facing platform functionality. The candidate should be comfortable working with sensitive business requirements while maintaining high standards for security, scalability, and technical documentation.

Key Responsibilities

Develop and maintain backend services, APIs, frontend components, dashboards, and internal platform tools.

Build and manage integrations with third-party APIs, including external data providers, AI services, automation tools, and other software systems.

Implement AI-assisted workflows, including prompt management, structured outputs, automated data processing, classification, summarization, and validation of AI-generated results.

Support the deployment and maintenance of cloud infrastructure on Amazon AWS or similar platforms, including storage, databases, access controls, logging, monitoring, and scalable processing.

Design and maintain secure data pipelines, background tasks, workflow automation, and report-generation functionality.

Implement secure authentication, role-based access control, workspace separation, encryption, secrets management, and audit logging.

Support CI/CD pipelines, testing, debugging, performance optimization, and system reliability.

Prepare technical documentation, including architecture notes, API documentation, data-flow descriptions, and deployment instructions.

Work with product and business stakeholders to translate operational needs into practical software features.

Required Qualifications

3+ years of professional software development experience, preferably in cloud-based platforms, SaaS products, automation systems, data-driven tools, or security-sensitive software environments.

Strong experience with one or more backend languages, such as Python, Node.js / TypeScript, Go, Java, or C#.

Practical experience with Amazon AWS or comparable cloud platforms. The candidate should understand cloud deployment, storage, databases, IAM/access controls, logging, monitoring, scaling, and secure configuration.

Strong hands-on experience with AI/LLM APIs and AI-enabled workflow implementation, including prompt design, structured outputs, model integration, workflow automation, and validation of generated results.

Experience building APIs and integrating third-party services, including authentication, rate limits, error handling, retries, data normalization, and monitoring.

Experience with modern databases such as PostgreSQL, MySQL, DynamoDB, MongoDB, or similar.

Understanding of secure software development practices, including access control, input validation, secure credential handling, encryption, logging, and dependency management.

Ability to work independently, solve technical problems, and clearly document technical decisions.

Preferred Qualifications

Experience with modern frontend frameworks such as React, Next.js, Vue, or similar.

Experience with Docker, serverless architecture, queues, background jobs, or workflow orchestration tools.

Familiarity with infrastructure as code, such as Terraform, AWS CDK, CloudFormation, or similar.

Experience with AI-assisted applications, embeddings, retrieval-based workflows, data extraction, or automated report generation.

Understanding of cloud security, API security, privacy-conscious data handling, and secure multi-user platform architecture.

Experience working in an early-stage product environment or building MVPs from the ground up.

Candidate Profile:

The ideal candidate is a cloud-oriented, security-minded software engineer with strong backend or full-stack capabilities. They should be able to build reliable platform infrastructure, integrate multiple external services, implement AI-enabled workflows, and support secure deployment on AWS or similar cloud infrastructure.

The role is best suited for someone who can combine practical engineering, cloud architecture, AI implementation, API integration, and secure development practices in a fast-moving product environment.

We are looking for an experienced Technical Lead Full Stack Engineer (Java+React) to join and guide the development team.

Our customer – integrated Shipping Services has set itself apart as an independent carrier with a fresh, unique approach. His strategy as a global niche carrier offers distinctive advantages to customers worldwide. We have created a smart, efficient network that ensures stable, reliable services; and we have made it our mission to focus on the needs of our customers, which stand at the heart of all our decisions. The main idea of our product operates in select trades, where it has a competitive advantage and where it can provide superior service. We maintain a flexible partnership approach with other major carriers, and our new line structure is a much-needed alternative to customers concerned about the current alliance-dominated market.

Responsibilities:

• Guide, mentor, and foster the growth of full-stack engineers within the team, championing engineering excellence and XP practices.
• Lead the architectural design and technical direction of innovative full-stack applications, ensuring scalability, security, and alignment with business goals.
• Establish and champion high standards of code quality, testing (TDD/BDD), CI/CD pipelines, and robust DevOps practices.
• Act as a key technical point of contact, collaborating closely with product owners and stakeholders to translate complex requirements into actionable technical strategies.
• Direct full-stack development of innovative applications, remaining actively involved in writing code and remote pairing.
• Own the entire development cycle, including design, architecture, development, testing, and DevOps deployment.

• Foster a highly collaborative Extreme Programming (XP) environment featuring remote pairing and rapid feedback loops.

   

Requirements:

• BS degree in Computer Science or an equivalent combination of education and experience.
• Experience in technical leadership is a must.
• 5-6+ years of full-stack development experience.
• 5-6+ years of experience in the following technologies: Java, Spring.
• Proven experience with Functional Programming and Java Streams.
• 2+ years of experience in front-end development with React.
• Experience with developing a reactive UI (Reactive JS).
• 2+ years of experience in TDD/BDD development in the following frameworks: JUnit, Jasmine, Mockito, Protractor/Selenium.
• 2+ years of experience in microservices-based architecture and tools (Spring Boot/Cloud).
• AI experience 
• Experience in DevOps development and Jenkins (must).
• Experience in development in Kotlin – an advantage.
• Experience in designing, developing, and deploying cloud/hybrid-based solutions.
• Experience in developing and deploying in Container-based environments (Kubernetes, Cloud Foundry).
• Deep familiarity with the following design concepts: microservices, service discovery, circuit breakers.
• Strong leadership abilities with the capacity to appropriately prioritize, plan, and delegate complex work in a rapidly changing environment.
• Versatility and capability to switch easily between different tasks and technologies.
• Experience in assessing a broad range of information solutions and products.
• Strong critical thinker with an exceptional problem-solving aptitude.

• Excellent English skills - both verbal and written.

   

We offer*:

• Flexible working format - remote, office-based or flexible
• A competitive salary and good compensation package
• Personalized career growth
• Professional development tools (mentorship program, tech talks and trainings, centers of excellence, and more)
• Active tech communities with regular knowledge sharing
• Education reimbursement
• Memorable anniversary presents
• Corporate events and team buildings
• Other location-specific benefits

*not applicable for freelancers

We are looking for an experienced Technical Lead Full Stack Engineer (Java+React) to join and guide the development team.

Our customer – integrated Shipping Services has set itself apart as an independent carrier with a fresh, unique approach. His strategy as a global niche carrier offers distinctive advantages to customers worldwide. We have created a smart, efficient network that ensures stable, reliable services; and we have made it our mission to focus on the needs of our customers, which stand at the heart of all our decisions. The main idea of our product operates in select trades, where it has a competitive advantage and where it can provide superior service. We maintain a flexible partnership approach with other major carriers, and our new line structure is a much-needed alternative to customers concerned about the current alliance-dominated market.

Responsibilities:

• Guide, mentor, and foster the growth of full-stack engineers within the team, championing engineering excellence and XP practices.
• Lead the architectural design and technical direction of innovative full-stack applications, ensuring scalability, security, and alignment with business goals.
• Establish and champion high standards of code quality, testing (TDD/BDD), CI/CD pipelines, and robust DevOps practices.
• Act as a key technical point of contact, collaborating closely with product owners and stakeholders to translate complex requirements into actionable technical strategies.
• Direct full-stack development of innovative applications, remaining actively involved in writing code and remote pairing.
• Own the entire development cycle, including design, architecture, development, testing, and DevOps deployment.

• Foster a highly collaborative Extreme Programming (XP) environment featuring remote pairing and rapid feedback loops.

   

Requirements:

• BS degree in Computer Science or an equivalent combination of education and experience.
• Experience in technical leadership is a must.
• 5-6+ years of full-stack development experience.
• 5-6+ years of experience in the following technologies: Java, Spring.
• Proven experience with Functional Programming and Java Streams.
• 2+ years of experience in front-end development with React.
• Experience with developing a reactive UI (Reactive JS).
• 2+ years of experience in TDD/BDD development in the following frameworks: JUnit, Jasmine, Mockito, Protractor/Selenium.
• 2+ years of experience in microservices-based architecture and tools (Spring Boot/Cloud).
• AI experience 
• Experience in DevOps development and Jenkins (must).
• Experience in development in Kotlin – an advantage.
• Experience in designing, developing, and deploying cloud/hybrid-based solutions.
• Experience in developing and deploying in Container-based environments (Kubernetes, Cloud Foundry).
• Deep familiarity with the following design concepts: microservices, service discovery, circuit breakers.
• Strong leadership abilities with the capacity to appropriately prioritize, plan, and delegate complex work in a rapidly changing environment.
• Versatility and capability to switch easily between different tasks and technologies.
• Experience in assessing a broad range of information solutions and products.
• Strong critical thinker with an exceptional problem-solving aptitude.

• Excellent English skills - both verbal and written.

   

We offer*:

• Flexible working format - remote, office-based or flexible
• A competitive salary and good compensation package
• Personalized career growth
• Professional development tools (mentorship program, tech talks and trainings, centers of excellence, and more)
• Active tech communities with regular knowledge sharing
• Education reimbursement
• Memorable anniversary presents
• Corporate events and team buildings
• Other location-specific benefits

*not applicable for freelancers

UITOP, a design & development team. We help B2B SaaS products feel simple, modern, and easy to use.
 

We are looking for Full Stack Developers. You will work on SaaS and data-heavy systems, diving deep into business logic with a real influence on technical and product decisions.

Requirements

• 2-4 years of experience as a Full Stack Developer, specifically with React.js and Node.js
• Strong expertise in TypeORM, Webpack, PostgreSQL, and Redis
• Proficiency with Express.js or NestJS for building scalable systems that can handle complex ERP business logic.
• Use AI tools (AI agents, Claude Code, Cursor, Codex or similar) in daily workflow. 
• Apply your experience in building SaaS or data-heavy applications, including CRM/ERP.
• Deep knowledge of Material-UI (MUI) and RESTful API design. 
• Upper-Intermediate English (B2) for effective communication and technical discussions. 

Benefits

• Regular performance and salary reviews. 
• Working with complex large-scale SaaS projects, from 6 months.
• 18 working days of vacation and 10 sick days.
• Compensation 50% for professional development cources. 
• Free Internal English classes.
• Company equipment. We’ll provide a laptop after 6 months of work. 
• Financial compensation of coworking 100% (during blackouts).
• Flexible work schedule, remote.
  
  We are looking for a highly motivated and talented individual to join our team. If this sounds like your next big challenge, let’s chat! 

Our client is a performance rights organization in the United States. It collects blanket license fees from businesses that use music, entitling those businesses to play or sync any songs from the client’s repertoire of over 22.4 million musical works. On a regular basis, the client distributes the money to songwriters, composers, and music publishers as royalties to those members whose works have been performed.

Requirements:

• 5+ years of experience in developing full-stack applications
• Experience with React frameworks such as Redux and React Router
• Experience with Java, Spring Boot, and RESTful API development
• Experience with cloud services and containerization using Azure and Docker
• Familiarity with integrating Payment Gateways and CRM systems
• Understanding of SQL and and NoSQL databases
• Knowledge of implementing Single Sign-On (SSO) using OKTA or similar authentication providers
• Good Understanding of SDLC process, version control, code review, continuous integration and automated deployment tools
• Experience working on large-scale, production-grade projects
• Knowledge of CI/CD methodology
• Strong communication and collaboration skills
• Problem-solving skills with the ability to tackle challenges proactively and efficiently
• B.Sc in Computer Science is an advantage
• Advanced level of English

Job responsibilities:

• You will be part of a team responsible for integrating payment gateways and Customer Relationship Management (CRM) system
• Collaborate with team members to design, develop, and deploy dynamic and responsive fullstack applications using React and Java
• Participate in the integration of payment gateways and CRM systems, ensuring seamless operation and data flow
• Contribute to the development of scalable and secure software systems, utilizing both SQL and NoSQL databases
• Assist in the deployment of applications on cloud services, such as Azure Kubernetes Service (AKS), and manage containerized applications using Docker
• Implement testing strategies including unit, integration, and automation tests to ensure the delivery of high-quality code
• Work with product management and UX/UI teams to deliver user-centric designs and features
• Maintain comprehensive technical documentation, including code structure, API documentation, and user guides
• Communicate effectively with cross-functional teams and stakeholders
• Stay updated on new technologies and methodologies to ensure continuous improvement of the development process

About the role 

We are looking for a strong Senior / Lead Full-Stack Platform Engineer to join a technically complex cryptocurrency product environment. This role is not for someone who only completes tasks based on specifications. We need a full-cycle engineer who can independently design, build, review, and bring solutions to production level. The ideal candidate can think beyond the codebase, understand architecture, product and technical risks, and make responsible decisions around security, scalability, stability, observability, testability, and long-term system maintenance. This role involves working across mobile, web, desktop, backend, infrastructure services, data processing systems, cryptocurrency business logic, wallet infrastructure, and blockchain integrations.

What you’ll do (day to day) 

• Design, develop, and maintain complex full-stack and platform solutions.
• Work with React, TypeScript, C#/.NET, backend services, and modular/plugin-based architecture.
• Build and improve cryptocurrency products, wallet infrastructure, and blockchain-related systems.
• Develop production-ready solutions with focus on security, reliability, scalability, performance, and maintainability.
• Work on mobile, web, desktop, backend, infrastructure, and data-processing systems.
• Analyze technical risks and make independent engineering decisions.
• Design APIs, service/module contracts, and scalable system components.
• Work with performance-critical parts of the system and optimize bottlenecks.
• Ensure proper logging, monitoring, observability, tracing, and production diagnostics.
• Write clean, maintainable, testable code with strong engineering standards.
• Use AI tools and AI agents effectively to accelerate development.
• Set clear tasks for AI agents, review AI-generated code, and control the quality of results.
• Participate in architecture discussions, code reviews, testing strategy, CI/CD, and production support.

What you’ll need 

• Strong commercial development experience in real production systems.
• Confident knowledge of React, TypeScript and/or C#/.NET.
• Experience designing architecture, not only implementing ready-made tasks.
• Strong understanding of OOP, SOLID, DRY, KISS, YAGNI, design patterns, and clean code principles.
• Good knowledge of asynchronous programming, multithreading, race conditions, deadlocks, thread safety, and background jobs.
• Understanding of memory management, object lifecycle, resources, and IDisposable.
• Knowledge of data structures, algorithms, Big O complexity, collections, queues, dictionaries, and caching.
• Experience with HTTP, REST APIs, WebSocket, RPC approaches, JSON, binary formats, and backward compatibility.
• Experience with databases, SQL, indexes, transactions, locks, and query optimization.
• Understanding of application security: validation, secrets management, authentication, authorization, and common vulnerabilities.
• Experience with unit, integration, and e2e testing, mocking, and testability by design.
• Experience with Git, CI/CD, code review, and branching strategies.
• Ability to diagnose production issues using logs, metrics, monitoring, tracing, and profiling.
• Understanding of error handling, retry policies, idempotency, graceful degradation, and migration strategy.
• Ability to work independently in uncertain and fast-changing environments.
• Strong ability to use AI tools practically in development, not only as code completion.
• Ability to critically review AI-generated code and architectural suggestions.
• Strong attention to detail, responsibility, and engineering thinking.
• Russian language proficiency. - not for djinni

Nice to have

• Experience in crypto, fintech, wallets, blockchain, or payment infrastructure.
• Experience with plugin-based or modular architecture.
• Experience developing mobile, desktop, or cross-platform applications.
• Experience with high-load systems, data processing, and performance optimization.
• Experience building internal platforms, SDKs, infrastructure services, or developer tools.
• Experience as a Lead Engineer, Tech Lead, Staff Engineer, or Architect.
• Strong backend experience with C#, .NET runtime, ASP.NET Core, dependency injection, middleware, hosted services, EF Core, ADO.NET, configuration, options pattern, health checks, and secure secrets management.
• Strong frontend experience with TypeScript, React, hooks, state management, routing, forms, validation, API error handling, UI performance optimization, frontend architecture, and frontend testing.

What Company offers 

•  A friendly, creative team where you own your work 
• Competitive compensation package.
•  All the tools and tech you need 
• Dynamic, fast-paced international environment.
• Long-term career growth opportunities within a rapidly expanding company.

Mate academy is an EdTech company helping anyone, anywhere build a successful career through learning.

Our gamified, AI-powered platform helps people gain new skills and get ready for tech and non-tech roles – in IT and beyond.

We’re growing fast in Ukraine, Poland, and Brazil and 6000+ people worldwide have already landed jobs after studying at Mate. 

We are looking for an Fullstack Team Lead — an experienced technical specialist who combines development expertise with marketing experience, and team management skills. This role is critical to our market growth: your decisions will shape how prospective students discover us, move through the purchase journey, and become part of Mate academy.

What makes this role exciting:

• End-to-end ownership: landing pages, funnels, payments, analytics.
• Building interactive growth products (custom forms, promos, experiments).
• Opportunity to build internal tools (e.g. our own Typeform alternative).
• Fast delivery with real business impact.
• Direct collaboration with marketing, product, and sales.
• You will directly impact how users discover Mate, go through funnels, and convert into students.

Required skills:

• 5+ years of software development experience.
• Experience with web analytics tools (Google Analytics, Google Tag Manager, or equivalent).
• Solid understanding of A/B testing methodology.
• Experience with any front-end framework and Node.
• Hands-on experience building and optimizing landing pages and marketing funnels.
• Leadership, mentoring experience, or willingness to develop in this direction.
• English level: Upper-Intermediate.

Nice-to-have skills:

• Experience with analytics tools (Amplitude, GrowthBook, Looker) and integrating payment providers (Stripe or similar)
• Experience supporting marketing events (webinars, marathons, product launches).
• Familiarity with conversion rate optimization and funnel analytics.
• Experience with headless CMS (Strapi) or landing page builders.

Key responsibilities:

• Lead and grow an acquisition team of 3 junior devs.
• Stay hands-on: build and optimize processes, integrations.
• Own technical decisions for acquisition systems.
• Standardize and scale landing page production .
• Improve analytics setup and tracking across all funnels.
• Bring structure to content systems (Strapi, landing builders).
• Implement AI best practices into team workflows.
• Identify bottlenecks and continuously improve processes.

We offer:

• A collaborative and dynamic team with opportunities to contribute creatively.
• A no-bullshit culture with 0% bureaucracy.
• Paid vacation and sick days.
• Hybrid working model (3 days office / 2 days remote).
• Cozy office in Kyiv with a bomb shelter for emergencies.
• Performance/salary reviews every 6-12 months.
• Paid lunches (when working from the office).
• Access to English courses and a learning budget.
• Apple equipment for comfortable work.

Recruitment process:

1. Call with the recruiter
2. Tech interview with Tech Lead
3. Culture fit interview with the CTO and CEO

Job Description
7+ years of experience in software development, with a focus on C#, React, and .NET Core.
1+ years of experience leading engineering teams and mentoring developers.
Strong knowledge of object-oriented programming, design patterns, and modern software architectures (e.g. serverless, microservices, containerized, etc.).
Proficiency in front-end development using React.js and modern JavaScript/TypeScript frameworks.
Experience with cloud platforms (e.g., Azure, AWS, or GCP). - Azure preferred
Solid understanding of CI/CD pipelines, unit testing, and deployment automation tools.
Excellent problem-solving skills and ability to work in a fast-paced, agile environment.
Strong communication skills and experience collaborating with cross-functional teams.
Experience working with Azure DevOps for task tracking and code repository would be a plus.
Experience working with AI-based productivity tools would be a plus.
Experience with NextJS and Syncfusion UI component library would be a plus.

Job Responsibilities

Lead a team of engineers in designing, developing, and deploying high-quality applications using C#, React, and .NET Core working on one of the workstreams on the project in Healthcare domain.
Collaborate closely with Product Owner, Product Manager, System Architect and other stakeholders to understand project requirements and deliver robust technical solutions.
Architect scalable and maintainable software solutions adhering to best practices and industry standards.
Oversee the full software development lifecycle, including planning, coding, testing, and deployment.
Conduct regular code reviews and mentor team members to ensure technical excellence and professional growth.
Adopt agile practices and continuous integration/continuous deployment (CI/CD).
Troubleshoot complex technical issues and optimize performance of applications.
Foster a collaborative, high-performing, and results-driven engineering culture.

Department/Project Description

Client is a leading global Contract Research Organization (CRO) that provides Phase I-IV clinical trial management, market access, and technology solutions with over 30 years of experience.

On behalf of our Client from France, Mobilunity is looking for a Fullstack Engineer.

Our client is a table management software and CRM that enables restaurant owners to welcome their customers easily. The app is useful to manage booking requests and register new bookings. You can view all your bookings, day after day, wherever you are and optimize your restaurant’s occupation rate. Our client offers a commission-free booking solution that guarantees freedom above all. New technologies thus become the restaurateurs best allies for saving time and gaining customers while ensuring a direct relationship with them.

Their goal is to become the #1 growth platform for Restaurants. They believe that restaurants have become lifestyle brands, and with forward-thinking digital products, restauranteurs will create the same perfect experience online as they already do offline, resulting in a more valuable, loyalty-led business.

You’ll be the technical backbone of their Payment squad, building and evolving the systems that power payments across our restaurant platform in Europe. Your primary playground is PHP/Laravel on the backend, with a meaningful share of work in a Java/Spring Boot service that owns parts of their payment domain. You’re also comfortable navigating a TypeScript/React frontend codebase and contributing to it when needed.

Beyond the code, they are looking for someone who genuinely enjoys thinking about architecture – someone who forms opinions, defends them with data, and changes their mind when shown a better path. They want a builder who is naturally drawn to new technologies and sees AI-assisted development not as a gimmick, but as a real productivity multiplier.

Responsibilities:

• Develop and maintain backend and frontend services for the Payment team using Laravel, Spring Boot, and TypeScript
• Design, document, and defend architectural decisions for new features and refactors, in collaboration with the other developers of the team
• Design and optimize backend systems and databases to serve B2B customers and their guests
• Investigate, diagnose, and resolve application-related issues in production, including payment-critical incidents
• Collaborate with the Product Manager, Designer, and the other developers of the team to scope and deliver new features on a regular basis
• Participate in code reviews and mentoring to maintain engineering excellence across the squad

Requirements:

• 5+ years of professional software development experience, with PHP/Laravel as your primary backend stack
• Working knowledge of Java and Spring Boot, or strong willingness and proven ability to ramp up quickly on a JVM service – you’ll regularly read, review, and contribute to it
• Solid TypeScript skills and hands-on experience – you can read, write, and review frontend code confidently
• Strong SQL knowledge: you write queries, understand indexes, and can reason about query performance
• Proven ability to articulate and justify architectural decisions: weighing trade-offs around scalability, maintainability, and explaining the reasoning clearly to peers and stakeholders
• Fluency with REST API design and experience consuming or building JSON integrations
• Comfortable working in Git-based workflows with pull requests, branches, and CI gates
• Active user of AI development tools (Claude Code, Cursor, Copilot, or similar) – you’ve integrated these into your daily workflow and are curious about pushing them further
• A track record of working in Agile environments with cross-functional teams
• Upper-intermediate to advanced English proficiency

Nice to have:

• Experience with React and/or Next.js
• Prior exposure to payment systems (PSP integrations, 3DS, refunds, reconciliation) or other regulated/financial domains
• Knowledge of cloud infrastructure (AWS) and containerization (Docker)
• Familiarity with Keycloak (OIDC/OAuth2, B2B/B2C realm configuration, identity providers)
• Exposure to Domain-Driven Design (DDD) or hexagonal/clean architecture patterns
• Experience with state management libraries (Mobx, Redux, Zustand, etc.)

You are the right fit if:

• You get genuinely curious about new tools, patterns, and frameworks – and you act on that curiosity
• You see AI-assisted development as a craft to develop, not just a shortcut to reach for
• You take ownership of problems rather than waiting to be told what to do next
• You bring care and rigor to a domain where mistakes are visible to users and have financial consequences
• You’re direct in technical discussions and comfortable with disagreement as part of good engineering

In return we offer:

• The friendliest community of like-minded IT-people
• Open knowledge-sharing environment – exclusive access to a rich pool of colleagues willing to share their endless insights into the broadest variety of modern technologies
• Mobilunity Medical Insurance program designed to attend our teams’ needs
• Paid vacations and sick leaves, including 5 paid days per year that don’t require a sick note
• Perfect office location in the city-center (900m from Lukyanivska metro station with a green and spacious neighborhood) or remote mode engagement: you can choose a convenient one for you, with a possibility to fit together both
• No open-spaces setup – separate rooms for every team’s comfort and multiple lounge and gaming zones
• English classes in 1-to-1 & group modes with elements of gamification
• Neverending fun: sports events, tournaments, music band, multiple affinity groups