Jobs Backend

Commercial experience in Gambling / iGaming is required
Commercial GameDev experience is required (preferably slot games)

Requirements:

-3+ years of experience in Java
-English — Upper-Intermediate (B2)
-Experience in math processing
-Experience with slot games
-Structured and analytical thinking
-Strong elaboration and communication skills


Strong knowledge of:

-Core Java, Collections, Streams, Lambdas
-Exception handling, Immutability, records
-Clean Code principles
-Spring Boot, Spring MVC (REST APIs), Spring Security (JWT)
-SQL, JPA
-JWT

Responsibilities:

-Standard Middle backend developer responsibilities
-Development and support of backend services
-Participation in feature development and system improvements
-Close collaboration with game teams, QA, and product

Would be a plus:

-JVM basics (heap/stack, GC, memory model)
-SOLID
-Spring MVC (filters, interceptors)
-Spring Security (filters, auth flow)
-Dependency Injection & IoC
-Validation (Bean Validation)
-API design (REST principles, versioning, error handling)
-Java concurrency fundamentals (basic understanding)
-Databases & Persistence: Transactions, Indexing basics, Hibernate
-Security: Secure coding practices, SQL injection prevention, OAuth2
-Testing: JUnit 5, Mockito, Integration testing basics
-DevOps & Tooling: Docker (basics, build/run), Git (branching, rebase)

We are looking for a Middle Backend Developer (Node.js) to join our team and work on an AI-powered software that integrates with business email accounts and time tracking/billing systems. 

🚀WHAT WE'RE LOOKING FOR:

• MUST HAVE: experience with AI development
• 3+ years of commercial software development experience;
• Solid working knowledge of Node.JS / Mongo / AWS / Swagger;
• Understanding of network operations/protocols, experience with Socket.io/WebSockets;
• Good debugging skills;
• Thorough experience of RESTful service design, API design, and best practices for building resilient and maintainable distributed systems;
• Experience with Typescript

💻RESPONSIBILITIES:

• Develop and maintain the mobile application using React, ensuring high performance and responsiveness
• Implementation of new product features
• Collaborate with team members
• Participate in the code review process
• Be involved in planning, designing, and execution
• Outline project scope and schedule, and provide accurate estimates of quality.

🕗 WORKING SCHEDULE:

This is a full-time permanent position (full remote). 

WHY IVORYSOFT:

• Flexible remote work
• Competitive salary based on experience
• Opportunity to work on an AI-driven product
• Friendly and professional team
• Career and professional growth, regular performance, and salary reviews
• Remote work opportunity and flexible working schedule
• Building projects from scratch, working only with the latest technologies
• Team buildings and corporate activities
• Legal support for private entrepreneurs

If you're ready to join a team working on cutting-edge AI solutions, apply now! 🚀

A rapidly expanding international iGaming company that is actively growing its presence in the Canadian market. 

In Toronto, we’re setting up a new hub to drive our North American growth — and we’re looking for a Senior Node.js Developer to join our engineering team.

✅ Requirements

• Strong knowledge of JavaScript and ECMAScript 6+ standards.
• 5+ years of commercial experience with Node.js and Nest.js.
• 5+ years of web development experience.
• Experience working with high-load SQL and/or NoSQL databases.
• Hands-on experience implementing REST, GraphQL, and WebSockets.
• Good understanding of TDD principles and writing automated tests.
• Solid knowledge of microservice architecture.
• Proficiency with Git version control.
• Experience with RabbitMQ and Redis.
• Strong experience with databases such as MongoDB and MySQL.

✅ Nice to Have

• 2+ years of experience working with CI/CD pipelines, microservices architecture, and containers.
• Experience with Kubernetes.
• Familiarity with NATS.
• Experience with TypeScript.

✅ Responsibilities

• Develop and enhance in-house iGaming platform.
• Integrate with third-party APIs and ensure smooth data exchange.
• Participate actively in developing new features from scratch.
• Contribute to building scalable, resilient, and high-performance back-end services.
• Collaborate closely with cross-functional teams to deliver end-to-end solutions.

🚀 Why Join to our team in Toronto?

• Be part of an international company entering the Canadian market.
• Work onsite in our Toronto office, contributing to large-scale, global projects.
• Build innovative products in a fast-paced, high-growth industry.
• Competitive compensation and professional growth opportunities.

We are seeking a highly skilled PHP Developer to join our dynamic team, specializing in building and maintaining robust, high-performance web applications. If you have a strong background in Symfony, MySQL 8.0, Redis, MongoDB, and experience managing high-load and big data projects, we want to hear from you!

Responsibilities:

Develop, test, and maintain web applications using PHP and Symfony.

Design and optimize complex databases, primarily MySQL 8.0, ensuring high performance and scalability.

Work with MongoDB for managing and optimizing unstructured data storage.

Integrate and manage message queues using RabbitMQ for asynchronous processes.

Utilize AWS cloud services (EC2, S3, RDS, etc.) to deploy and manage applications in a scalable, secure environment.

Collaborate with cross-functional teams to define, design, and ship new features.

Identify and resolve performance bottlenecks and bugs.

Ensure the best possible performance, quality, and responsiveness of applications.

Stay updated with the latest industry trends and technologies to bring innovative solutions to the team.

Requirements:

Proven experience as a PHP Developer with a deep understanding of the Symfony framework.

Expertise in MySQL 8.0, including performance optimization, indexing, and query optimization.

Experience with message queue systems, particularly RabbitMQ.

Hands-on experience with AWS services and infrastructure.

Solid understanding of high-load and big data application development.

Strong analytical and problem-solving skills, with a keen eye for detail.

Preferred Qualifications:

Experience with containerization and orchestration tools (Docker, Kubernetes).

Previous experience in a DevOps environment.

Understanding of front-end technologies (JavaScript, React, Vue.js) is a plus.

Playson 🤘 is a leading online gaming supplier founded in 2012 that has developed worldwide recognition in the industry.

Our promotional features team is seeking a Senior Backend Engineer with a strong background in Node.js. This role is focused on developing and optimizing promotional features for our gaming platforms, where performance, scalability, and cutting-edge solutions are paramount.
If you’re a product-passionate person, your mind is keen to solve deep tech engineering problems, and you have a fast “PoC first” approach with a deep sense of ownership, we would love to hear from you.

To succeed in the role, you will have:

• A degree in Computer Science or related field
• Strong development experience in Node.js/TypeScript 5+ years
• Strong understanding of Async approaches
• Experience with Messaging systems like Kafka, RabbitMQ
• Experience in distributed systems
• Experience with RDBMs (MySQL, PostgreSQL etc.), CDBMs (Redshift, ClickHouse etc.), NoSQL (DynamoDB, MongoDB, etc)
• Experience in writing e2e & unit tests
• Experience with development production-ready solutions
• Hands-on product experience with Kubernetes

Would be beneficial to know:

• Understanding of enterprise development patterns
• Experienced with large-scale microservices architecture
• Experience with cloud providers (AWS, GCP, etc.)
• Active performance observation
• Gambling domain experience
• Understanding of application security and industry standards, its best practices

What will you be doing?

• Develop and maintain robust backend systems for our promotional features.
• Optimize existing systems for enhanced performance and scalability.
• Lead technical decisions and contribute to our SaaS solutions.
• Collaborate with distributed teams to innovate and implement new features.
• Ensure code and architectural excellence through reviews.
• Address complex technical challenges with innovative solutions.

What you get in return:

• Competitive Salary: We offer a competitive salary in EUR, subject to annual performance reviews
• Quarterly Bonuses: Benefit from a transparent and systematic quarterly bonus system
• Flexible Schedule: We offer a flexible work schedule to accommodate your needs
• Remote Work Option: Choose to work remotely, providing greater flexibility and comfort
• Medical Insurance: Receive comprehensive medical insurance for both you and a significant other
• Financial Support for Life Events: We provide financial support during special life events
• Unlimited Paid Vacation: Enjoy unlimited paid vacation leave
• Unlimited Paid Sick Leave: Take unlimited paid sick leave whenever necessary
• Professional Development: Get reimbursement for professional development courses and training

Join us today!

Responsibilities

•  

   

  Develop and maintain backend services using Python.

   

   

•  

   

  Implement and support real-time communication features using WebSockets.

   

   

•  

   

  Design and optimize data models in MongoDB.

   

   

•  

   

  Build and maintain REST APIs and asynchronous services.

   

   

•  

   

  Collaborate with frontend and QA teams to ensure smooth integration.

   

   

•  

   

  Participate in code reviews and follow best engineering practices.

   

   

•  

   

  Troubleshoot, debug, and optimize application performance.

   

   

Requirements

•  

   

  3+ years of experience in backend development with Python.

   

   

•  

   

  Strong knowledge of WebSockets and real-time data handling.

   

   

•  

   

  Hands-on experience with MongoDB (schema design, indexing, performance optimization).

   

   

•  

   

  Experience with frameworks such as FastAPI, Django, or Flask.

   

   

•  

   

  Understanding of asynchronous programming (asyncio).

   

   

•  

   

  Experience with Git and basic CI/CD processes.

   

   

Nice to Have

•  

   

  Experience with message brokers (Redis, RabbitMQ, Kafka).

   

   

•  

   

  Knowledge of Docker and containerized environments.

   

   

•  

   

  Experience working in Agile teams.

   

   

We Offer

• Competitive salary
• Flexible schedule
• Social package
• Courses, webinars, seminars to increase professional skills
• Horizontal hierarchy. No micromanagement pressure
• Open company culture where your ideas and initiatives are valued
• Regular team building & corporate events
• International projects

Position

Senior Full-Stack Node.js/TypeScript Developer

About the Project

International SaaS company building unified commerce platform for retail, F&B, and wholesale distribution. Product includes POS systems, inventory management, warehouse management, and e-commerce integrations. Live deployments with enterprise clients (50-110+ store chains).

Technical Requirements

Must have:

• Node.js + TypeScript, 3+ years of experience
• Strong JavaScript ecosystem knowledge
• Experience with cloud providers (Azure preferred, AWS/GCP acceptable)
• SQL and/or MongoDB experience
• Git, Agile methodology

Nice to have:

• E-commerce platform experience (Shopify, Magento)
• React or Angular frontend experience
• Docker, Kubernetes
• CI/CD pipelines (Jenkins, CircleCI)
• ERP/CRM experience (NetSuite, Salesforce)

Responsibilities

• Develop, test, and deploy Node.js applications
• Work with cloud infrastructure (Azure)
• Participate in code reviews
• Collaborate with distributed international team

Timezone

GMT+2 or later (Cyprus, Eastern Europe, Ukraine ideal)

Engagement

Part-time to start, potential to grow. Long-term project.

Priority

High. Client has immediate need for upcoming deployment.

We’re searching for a Node.js Developer to work on an innovative, high-scale project. This is a long-term opportunity with opportunities for growth.

Location: Warsaw, Poland (office or hybrid)

Requirements:

• Strong TypeScript skills and Node.js expertise
• Hands-on experience with AWS services (compute, storage, messaging)
• 4+ years of professional backend development experience
• Familiarity with real-time or asynchronous communication patterns
• Strong problem-solving skills and attention to detail

Responsibilities:

• Develop and maintain backend services using Node.js and TypeScript
• Design and implement scalable APIs and microservices
• Build event-driven workflows and background job processing
• Optimize database operations and ensure data consistency (SQL and NoSQL)
• Implement notification systems and real-time updates where needed (WebSockets, queues)
• Ensure performance, stability, and cost efficiency in cloud environments (AWS)

Perks & Benefits:

• Comfortable office in Warsaw, Poland
• Flexible working hours
• Paid sick leave and vacation days
• Continuous learning and professional growth environment
• Exciting projects using modern cloud technologies and scalable architectures

We’re looking for an experienced Full-Stack Developer who would help us reach the next level! If you are optimistic about managing full-stack development of web applications and websites and desire to have the opportunity to participate in a variety of projects with various back-end and front-end stacks - this opportunity is exactly what you are looking for.

Responsibilities:

• Participate in the entire application lifecycle, focusing on coding and debugging;
• Write clean code to develop functional web applications;
• Troubleshoot and debug applications;
• Perform UI tests to optimize performance;
• Manage technologies to improve legacy applications;
• Collaborate with Front-end developers to integrate user-facing elements with server-side logic;
• Gather and address technical and design requirements;
• Provide support to internal teams;
• Build reusable code and libraries for future use;
• Liaise with developers, designers, and system administrators to identify new features.

Qualifications

• At least 7 years working as a Full Stack Developer with a primary focus on the Back-End;
• 2-3 years of experience in the digital advertising ecosystem and at least 1 year of experience in Ad-tech;
• Experience with Client-side frameworks, preferably ReactJS;
• Experience with Server-side development in PHP(Laravel)/Python;
• Experience with databases PostgreSQL/MySQL, Redis;
• Experience with Git source control;
• Experience with production deployments, DevOps, and CI/CD;
• Passion for code craftsmanship;
• Attention to detail, organization, and multitasking;
• Excellent analytical and time management skills;
• Teamwork skills with a problem-solving attitude;
• Good command of English language.

Why do we enjoy working here?

• A young and driven team of professionals who are willing to grow and bring value.
• People-centric culture.
• L&D - support your need to replenish your knowledge and acquire new skills to do your job better via paid Professional training & e-learning courses.
• Flexible working schedule. We don’t use any time-tracker. We opt for performance.

On behalf of our client, we are looking for a Senior Drupal / PHP Developer

Responsibilities:

- Develop and maintain Drupal-based websites and resident portals.

- Create bespoke Drupal modules and implement existing modules.

- Integrate Drupal systems with third-party services.

- Own full streams of work, including entire resident portals.

- Collaborate with project managers, customer success teams, developers, and occasionally clients.

- Follow best coding practices, documentation standards, code reviews, and testing (unit and integration).

- Contribute to resilient, maintainable, and high-quality software delivery.

Requirements:

- 5+ years of commercial PHP experience.

- 3+ years of hands-on experience with Drupal.

- 1+ year of experience with Laravel or Symfony.

- Experience creating custom Drupal modules and custom templates.

- Strong SQL and JavaScript skills.

- Experience with testing frameworks.

- Experience using Git and version control systems.

- Comfortable working with command line tools.

- Experience working with macOS or Linux systems.

- Upper - Intermediate or higher level of English

- Self-starter with ownership mindset and attention to detail.

Company offers:

- Long-term employment with possibilities for professional growth

- Fully remote work

- Reasonably flexible schedule

- 15 days of paid vacation

- Regular performance reviews

We are looking for a Team Lead [Python] to join our team!  

Requirements:  
- Bachelor's or Master's degree in Computer Science, Software Engineering, or a related field;

- 4+ years of experience in software engineering;

- Strong proficiency in Python, with experience with other programming languages;

- Solid understanding of computer science fundamentals, data structures, and algorithms;

- Strong knowledge of concurrency, parallelism, and related concepts;

- Experience with back-end frameworks (FastAPI);

- Expertise in object-oriented programming and SOLID principles;

- Experience with RESTful APIs and microservices architecture;

- Proficiency in version control systems, particularly Git;

- Familiarity with CI/CD pipelines and DevOps practices;

- Strong understanding of database systems (both SQL and NoSQL);

- Experience with AWS services, cloud architecture, and Serverless development; 
- Knowledge of containerization technologies (Docker, Kubernetes);

- Testing and quality mindset; understanding Test Pyramid methodology and different Test Categories;

- Understanding of Observability (structured logging, metrics, traces, OpenTelemetry) and Reliability (circuit breakers, backoff, idempotency). 

Will be plus: 
- Practical AI app experience: implementing RAG pipelines (chunking, indexing, retrieval, re-ranking) with vector stores (e.g., pgvector, Qdrant, Pinecone) and framework glue (LlamaIndex, LangChain, pydantic_ai or any similar);

- Integrating LLM providers via API (prompt/function-calling/tool use), with guardrails, caching, retries, and fallbacks.

- Familiarity with MLOps tools and practices (deepeval, prompts versioning, etc.);

- Experience with message brokers (e.g., NATS, Kafka, RabbitMQ);

- Familiarity with graph databases and algorithms;

Responsibilities:  
- Develop and maintain robust, scalable web applications that integrate AI models;
- Design and implement efficient APIs for AI model serving and data processing;
- Collaborate closely with the AI team to understand model requirements and optimize integration;
- Implement and optimize algorithms for data processing and feature engineering;
- Ensure high performance and responsiveness of applications;
- Implement security measures and data protection in line with industry standards;
- Participate in code reviews and contribute to improving development practices;
- Troubleshoot, debug, and upgrade existing software;
- Write technical documentation and maintain system architecture diagrams;
- Stay updated with emerging technologies and industry trends.

Our benefits to you:
☘️An exciting and challenging job in a fast-growing holding, the opportunity to be part of a multicultural team of top professionals in Development, Architecture, Management, Operations, Marketing, Legal, Finance and more
🤝🏻Great working atmosphere with passionate experts and leaders, sharing a friendly culture and a success-driven mindset is guaranteed
🧑🏻‍💻Modern corporate equipment based on macOS or Windows and additional equipment are provided
🏖Paid vacations, sick leave, personal events days, days off
💵Referral program — enjoy cooperation with your colleagues and get the bonus
📚Educational programs: regular internal training sessions, compensation for external education, attendance of specialized global conferences
🎯Rewards program for mentoring and coaching colleagues
🗣Free internal English courses
✈️In-house Travel Service 
🦄Multiple internal activities: online platform for employees with quests, gamification, presents and news, PIN-UP clubs for movie / book / pets lovers and more
🎳Other benefits could be added based on your location 

We are a Ukrainian IT company with 5 years of experience and over 100 successfully delivered projects for clients worldwide.

Requirements:

Must have:

• Commercial experience with WordPress — at least 2 years
• Experience with:
  • PHP — 2+ years
  • JavaScript — 2+ years
  • WooCommerce — 2+ years
• Practical experience with:
  • ACF, Gutenberg, Elementor
  • Responsive and cross-browser layout (W3C standards)
  • Gulp, NPM, SASS / SCSS
• Basic knowledge of MySQL

• English — А1  or higher

  IMPORTANT:
   

  We do not have a test task.
  A mandatory requirement is to provide 4–5 real commercial projects (not test projects).

Responsibilities:

• Development and maintenance of WordPress websites
• Development of WooCommerce online stores
• Creating responsive, fast, and optimized pages
• Plugin integration and custom solutions development
• Performance optimization and code quality improvement

 We offer:

• Fully remote work
• Flexible working schedule
• Paid vacation and sick leave

Client

The client operates a B2B e-commerce marketplace connecting professional customers, including hotels, restaurants, and catering businesses, with a wide network of suppliers.

Project overview

The platform provides access to a broad assortment of products, helping businesses streamline procurement and move from manual processes to efficient, digital ordering solutions.
The product is focused on simplifying purchasing workflows, improving operational efficiency, and enabling business customers in the hospitality and retail sectors to manage orders, suppliers, and inventory through a scalable online platform.

Position overview

You will join a large-scale engineering team with 500+ engineers contributing to the product globally. While the exact team size may vary, development is organized in cross-functional Agile teams, primarily following Scrum practices.
You will collaborate with backend and frontend engineers, product managers, DevOps, and UX designers to continuously improve the platform and deliver business value.

Technology stack

Core:
PHP, Symfony
MySQL
RESTful APIs
Docker
RabbitMQ

Nice to have:
JavaScript
PHPUnit
AWS or GCP
Kafka

Responsibilities
 

• Design, develop, and maintain backend services.
• Implement high-performance, reliable, and secure APIs to support core marketplace functionality.
• Collaborate with cross-functional teams (Product, Frontend, UX/UI, DevOps) to improve the customer journey.
• Participate in system architecture discussions and contribute to technical decision-making.
• Optimize database performance and ensure data integrity across services.
• Integrate external services, including payment providers and transaction-heavy systems.
• Ensure code quality through testing, reviews, and adherence to best engineering practices.
• Monitor, troubleshoot, and resolve production issues to maintain platform stability.
• Continuously improve existing solutions with scalability, maintainability, and business goals in mind.

Requirements

• Strong background in backend development with PHP, preferably using Symfony.
• Hands-on experience with MySQL and designing efficient data models.
• Solid understanding of RESTful APIs and service-oriented architecture.
• Experience with cloud platforms (GCP is a plus), Kafka, caching mechanisms, and distributed systems.
• Familiarity with payment systems, PSP integrations, or transaction-heavy platforms is a strong advantage.
• Understanding of SDLC and Agile methodologies (Scrum/Kanban).
• Proactive mindset with the ability to balance technical and business priorities.
• Strong collaboration skills and experience working in cross-functional teams.
• Ability to communicate ideas clearly and constructively in an international environment.
• Upper-intermediate English or higher for daily communication.

We are a small team in Estonia who are working with middle-sized companies. We make high-quality designs and our main goal is to develop custom solutions that are easy to use for our customers. We are looking for a sharp developer who can work remotely from home. Your daily job will include developing different WordPress tasks.

Requirements: Html, CSS, JS, PHP, Wordpress

Skills:

You know modern development workflows

ACF Pro, Custom Post Types, Custom themes, Elementor

Good communication skills in English

Collaborate with team members and operate individually to develop complex front-end tasks.

A self-motivated, quick learner.

Salary depends on skill level and on a mandatory test job.

Application:

We accept applications through this site.

Please include some of your previous portfolio and code examples.

We are looking for a Python Backend Developer to join our team and work on an AI-driven automation platform focused on optimizing and accelerating complex internal business processes.

🚀 About the Project

Our application identifies manual and complex operational tasks within organizations and automates them using modern technologies and AI tools.

This includes:

• Integrations with third-party APIs
• Vendor-related workflows
• Automated document generation

• Process optimization and workflow automation

   

We actively leverage modern AI solutions to enhance and automate our product — both from a code generation and application logic perspective.

🛠 Tech Stack

• Backend: Python, Flask
• Frontend: React, Next.js, TypeScript (nice to have)
• Cloud: Google Cloud Platform

Our current priority is strong backend experience in Python.

✅ Requirements

• Commercial experience with Python (Flask or another web framework)
• Experience building and maintaining APIs
• Practical experience working with AI tools (LLMs, embeddings, vector databases, AI-assisted development, or integrating AI into applications)
• Conversational English (for team communication)

➕ Nice to Have

• Experience with React / Next.js
• Experience with GCP
• Background in automation or workflow optimization

Full-stack experience is not required. The main focus is strong Python backend skills and hands-on AI experience.