Jobs at Djinni

We’re looking for a proactive Data Scientist to join our growing team and help us redefine the future of eSports betting! You will develop and implement advanced models for esports betting, focusing on games such as Dota 2, League of Legends, etc. Oversee the entire model development lifecycle, including design, testing, and performance optimization.

What you’ll be doing:

• Develop and implement betting models using Python and Golang.
• Design and optimize mathematical models, including statistical models, classical machine learning techniques, and neural networks.
• Analyze the performance and impact of models, ensuring operational efficiency.
• Prototype and assess models to evaluate their effectiveness and user acceptance.
• Integrate models with existing systems and optimize performance.
• Collaborate with backend and frontend teams for seamless implementation and decision-making.
• Conduct in-depth statistical analysis and apply machine learning methods to enhance forecasting accuracy.

What we’re looking for:

• 3+ years of commercial experience with Python.
• Strong knowledge of statistics and practical experience with ML techniques.
• Proven expertise in mathematical modeling, including statistical methods, classical ML approaches, and neural networks.
• Strong data processing skills (validation, parsing, visualization).
• Understanding business logic of decisions and analytical thinking ability.
• Excellent communication skills and the ability to work in a team.
• Ability to assess the business value of tasks.
• English – Intermediate level.
• Nice to have: Higher education in computer science, mathematics, statistics, or a related discipline is a plus.

• Nice to have: Experience in the betting industry or related fields is an advantage.

   

What We Offer:

• Your wellbeing and a comfortable work environment are our top priorities:
• Flexible schedule & work format (office/hybrid): work where and when you feel most productive.
• 20 paid + 15 unpaid vacation days: take time off whenever you need to reset.
• An extra day off on your birthday — celebrate it your way!
• Medical insurance: take care of your health with extended coverage (available in Ukraine only).
• 22 sick days: 8 days without a doctor’s note (for sick leave or mental health), 10 with a note, plus 4 Personal Days per year — for personal matters, when it is necessary.
• Gifts and bonuses for life’s big moments: weddings, new babies, kindergarten support (available in Ukraine only).

Who We Are:

We’re DATA.BET — a product-driven IT company transforming the world of sports, esports, and virtual betting with our innovative sportsbook solution. 

Since 2017, we’ve been building tech that directly shapes the industry.
Our team of experts blends hands-on experience with AI technologies to deliver cutting-edge solutions that set new standards in betting.

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.

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

 In Toronto, we’re building a world-class team to drive our North American presence — and we’re looking for a Senior Front-End Developer (Angular 18+) to join us.

This is an exciting opportunity to work on complex, large-scale projects, shaping innovative products in a fast-paced, high-growth industry.

✅ Requirements

• Minimum 5 years of commercial web development experience.
• At least 3 years of hands-on experience with Angular (we’re using Angular 18).
• Strong proficiency in TypeScript.
• Experience with testing frameworks (e.g., Jest).
• Solid understanding of REST API consumption.
• Knowledge of SOLID/GRASP principles, client-side architecture, and design patterns.
• Awareness of cross-browser compatibility and performance optimization.
• Strong problem-solving skills and the ability to work independently.
• Practical experience with Git, npm, Webpack, Babel, Linters.

✅ Nice to Have

• Experience with the Nx framework.
• Familiarity with TypeScript AST and writing code modifiers.
• Experience with GitLab CI.
• Knowledge of Docker, NGINX, Node.js.
• A strong product mindset and good understanding of web UX best practices.

✅ Responsibilities

• Develop and enhance a complex iGaming platform using Angular 18 and TypeScript.
• Write high-quality, scalable, testable, and performant code.
• Participate in testing, validation, and documentation of front-end systems.
• Take ownership of assigned projects: assign tasks, coordinate team efforts, and monitor progress.
• Provide technical guidance and help resolve programming challenges.
• Conduct code reviews and provide constructive feedback to ensure best practices and code quality.
• 🚀 Why Join to our team in Toronto?
• Be part of an international company that’s rapidly growing in Canada.
• Work onsite in our new Toronto office, alongside top talent in the industry.
• Opportunities for career growth and leadership responsibilities.
• Competitive compensation package and dynamic, fast-paced work environment.

We are looking for an experienced Lead Full stack Engineer (Node.js & React) to join our development team in Lisbon. This role is 80% Backend (Node.js) and 20% Frontend (React), where you’ll help build and scale a next-generation payments integration platform that connects businesses with multiple financial service providers through secure, high-performance APIs.

🎯 Your Mission

Design and implement robust solutions that power our payments platform, ensuring scalability, security, and reliability. You will contribute to building seamless integrations with banks and payment providers while actively participating in the evolution of a cutting-edge fintech product.

✅ Responsibilities:

✔️ Being transparent with the team about challenges, failures, and successes.

✔️ Hiring and training technical personnel.

✔️ Determining project requirements and developing work schedules for the team.

✔️ Delegating tasks and achieving daily, weekly, and monthly goals.

✔️ Liaising with team members and management to ensure projects are completed to standard.

✔️ Motivating staff and creating a space where they can ask questions and voice their concerns.

✔️ Delegating work and assignments to team members.

✔️ Collaborating with their team to identify and fix technical problems.

✔️ Lead the development of our in-house fintech platform with a focus on performance, scalability, and security.

✔️ Build and manage complex payment API integrations with banks, PSPs, and third-party services.

✔️ Contribute to backend development, ensuring consistency and stability across the product.

✔️ Actively participate in developing new features from concept to production.

✔️ Collaborate with product managers, designers, and stakeholders in agile workflows to ensure technical feasibility and business alignment.

✔️ Support the evolution of the architecture towards modern patterns (microservices, messaging systems, and scalable infrastructure).

✅ Requirements:

✔️ At least 8+ years of professional experience in the IT field.

✔️ 3+ years of experience in leadership positions.

✔️ 3+ years of commercial experience with Node.js.

✔️ 5+ years of commercial experience in web development.

✔️ Knowledge of JavaScript and the ECMAScript 6 standards.

✔️ Commercial experience in implementing REST and WebSockets.

✔️ Experience with Git version control system.

✔️ Experience with commercial databases, MySQL.

✔️ Experience with RabbitMQ.

✔️ Experience with Redis.

✔️ B2 level of English.

✔️ Excellent technical, diagnostic, and troubleshooting skills.

✔️ Strong leadership and organizational abilities.

 

We're looking for a Senior Full Stack Developer with experience in Node.js and React to join our development team in Lisbon!

✅ Requirements:

✔️ 5+ years of commercial experience in web development;
✔️ 3+ years of commercial experience with Node.js;
✔️ 3+ years of commercial experience as an FE (React) engineer;
✔️ Experience with NextJS, NestJS, Apollo, Material;
✔️ Experience with TypeScript;
✔️ Commercial experience with high-loaded SQL or NoSQL databases;
✔️ Experience with REST, GraphQL, WebSockets;
✔️ Understanding of TDD principles and writing tests;
✔️ Understanding of microservice architecture principles;
✔️ Experience with Git version control system;
✔️ Experience with RabbitMQ;
✔️ Experience with Redis;
✔️ Experience with MongoDB, MySQL databases;
✔️ At least an upper-intermediate level of English.

✅ Will be a plus

✔️2+ years of hands-on experience developing CI/CD/Micro Services architecture/Containers;
✔️Experience with Kubernetes and Docker;
✔️Experience with Queue brokers(RabbitMQ, Apache, etc.)

✅ Duties and opportunities

✔️In-house platform development;
✔️3rd party API integrations;
✔️Actively participate in developing new features from scratch;
✔️Work with own fintech solution;
✔️Bi-weekly sprints, SCRUM, grooming, planning.

✅ We offer excellent benefits, including but not limited to:
✔️Working with the latest technologies (Nest, Kubernetes, mongo, graphQL, MySQL, etc)
🧑🏻‍💻Learning and development opportunities and interesting challenging tasks;
📝Official employment in accordance with the laws of the EU
🏋️‍♂️ Company fitness corner in the office for employees;
📚 Opportunity to develop language skills and partial compensation for the cost of language classes;
🎁 Birthday celebration present;
🏝 Time for proper rest and 24 working days of Annual Vacation;
🍲 Breakfasts and lunches in the office (partially paid by the company).

About The Role

In this role, you will drive tangible business impact by delivering high-quality insights and recommendations, leveraging your ability to combine strategic thinking and problem-solving with detailed analysis. You will collaborate closely with Product Managers and cross-functional teams, uncovering business insights, devising optimization strategies, and validating them through experiments.
 

What You’ll Do

• Collaborate with Product and Analytics leadership to structure and perform deep-dive analyses, delivering actionable insights into key business areas
• Analyze large datasets (internal and external) to identify growth and optimization opportunities, translating findings into business recommendations and effectively communicating them to stakeholders, including senior leadership.
• Perform Descriptive and Prescriptive Analytics using ML models, A/B and MAB experimentation, while building reports to understand business trends
• Track and implement business metrics to drive continuous improvement and support data-driven decision-making
• Act as a lead analyst, gaining deep insights into the JustAnswer audience to inform strategic decisions.
   

What We’re Looking For

• 5+ years of experience (preferably within e-commerce or customer experience products).
• Strong proficiency in Excel for analysis and business modeling
• Experience with SQL with a strong ability to write complex queries to extract information and arrive at an answer
• Experience with Google Analytics, BigQuery, PowerBI, Python/R, and ML is desirable.
• Expertise in Descriptive and Inferential Statistical Analysis, A/B testing, or Hypothesis Testing, with proven ability to analyze results.
• Excellent communication skills, with confidence in interacting across all levels of management and diverse business functions.
• English proficiency (at least strong upper-intermediate level).

Job Description:
We are seeking a detail-oriented and methodical Manual QA Tester to join our team. In this role, you will be responsible for validating the functionality, reliability, and usability of our web applications through rigorous manual testing. You will work closely with developers and product managers to ensure that our releases meet high-quality standards.

Responsibilities:

• Create, execute, and maintain comprehensive test cases and test plans based on product requirements and specifications
• Identify, document, and track bugs using issue Jira
• Perform functional, regression, integration, and UI testing
• Collaborate with developers to clarify requirements and resolve defects
• Provide clear and detailed feedback regarding test coverage, defects, and product quality

Requirements:

• 1–3 years of experience in manual QA testing for web-based applications
• Strong understanding of QA methodologies, tools, and processes
• Excellent analytical and problem-solving skills
• Strong verbal and written communication skills
• Superior ability to communicate in English- both testing results as well as in messaging

We are looking for an Autonomous systems engineer with a background in physics, control theory and mathematical modelling. The ideal candidate will have a strong math background, experience with autonomous systems, modelling and control design.

We consider engineers at Middle and Senior levels - tasks and responsibilities will be adjusted accordingly. 
Required Qualifications:
• 3+ years in R&D software development 
• Mathematical modelling, system identification and control 
• Matlab/Simulink 
• Signal processing 
• Experience with C++ , Python 
• Ability to quickly navigate through recent research and trends in control theory and autonomous systems. 
Nice to Have: 
• Aerodynamics fundamentals 
• Machine Learning 
• Simulation tools (Gazebo, AirSim) 
• SITL, HITL testing 
• PX4, Betaflight, ArduPilot

Cowchain blockchain development company is actively looking for QA  Manual to join our development team.

About us:
Cowchain have successfully completed 150+ projects mainly on EVM-based blockchains such as Ethereum, Polygon, Arbitrum, Base including Coinmarketcap leaders with 180M+ total capitalization and 20M+ daily trading volume in Move2Earn, Play2Earn and DeFi industries.

Key Responsibilities

• Testing new features
• Maintaining bug log
• Work with the development team
• Work within the Scrumban environment
• Have fun

Required Skills:

• 1 year of manual testing
• Experience in JIRA
• Good understanding web3 domain, user experience!

Nice to Have

• Experience in FinTech / Crypto / Blockchain 

What We Offer

• Work on a real production crypto-fintech system
• Flexible working schedule, remote work
• Modern tech stack and non-trivial engineering challenges
• Ability to dive into fast-growing blockchain/crypto industry
• Paid vacations, sick leaves
• Strong engineering culture
• 100% friendly/family team

N-iX is one of Ukraine’s fastest-growing and most recognized tech companies, partnering with global industry leaders and Fortune 500 clients. With major development centers in Lviv, Kyiv, Ivano-Frankivsk, and growing hubs across the country, we unite 2,400+ talented professionals globally. Enjoy flexible working formats, vibrant professional communities, extensive growth opportunities, and a supportive culture that has earned recognition from DOU and EY as a top IT employer in Ukraine.

You will own and continuously improve N-iX-wide client-facing content that supports business development: case studies, capability/solution presentations, and other sales-enablement materials. Your work will help teams explain N-iX delivery outcomes and technical expertise clearly, consistently, and credibly across domains.

We are open to candidates who demonstrate strong potential and motivation to grow in solution writing and business-facing communication.

Responsibilities

• Own SDO-wide production and maintenance of case studies, one-pagers, and PowerPoint/Google Slides presentations for business development needs (primary focus).
• Drive the full content workflow end-to-end.
• Translate complex technical concepts into clear, value-oriented narratives, selecting the right level of technical depth for a business development audience.
• Maintain consistency across existing materials by applying and evolving templates, tone/voice, structure, and terminology (a “single standard”).
• Embed and maintain supporting visuals (simple diagrams, flows, architecture overviews) that strengthen the story and improve comprehension.
• Ensure materials are accurate, evidence-based, and compliant with internal confidentiality rules (including what can/can’t be shared externally).
• Use AI tools responsibly to accelerate drafting, summarization, and analysis—while ensuring final content quality and factual correctness.
   

Requirements

• 2+ years (or equivalent) experience in technical writing / solution writing / technical communications with a portfolio of case studies and/or presentations.
• Ability to work with multiple stakeholders and manage reviews: comfortable interviewing SMEs, driving feedback cycles, and meeting deadlines.
• Strong writing skills in English: clarity, structure, concise phrasing, and the ability to adapt tone for different audiences.
• Strong presentation/document craft:
• Tools: confident with PowerPoint / Google Slides, Google Docs, Confluence, and Jira (primarily for process/task tracking). Google Gemini/ChatGPT/Claude for working with content.
• Ability to handle multiple parallel requests and prioritize by business deadlines.
   

Nice to have

• Experience with sales enablement content (capabilities decks, solution overviews, pitch support), and/or with structured content libraries and template systems.
• Familiarity with light diagramming tools (e.g., draw.io, Lucidchart, Miro, Figma) and basic visual communication principles.

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

SoftPeak is looking for a part-time UX&UI Designer with a strong eye for detail, a user-first mindset. 
You’ll be working on custom web and mobile applications for startups and SMBs across different industries.

Requirements:

• 3+ years of commercial experience in UX&UI Design
• English level B2+
• Strong portfolio showcasing web and mobile app design
• Proficiency in Figma (components, design systems, prototyping)
• Ability to create user flows, wireframes, mockups, and interactive prototypes
• Understanding of usability principles and user-centered design

Responsibilities:

• Collaborate with clients and product owners, Developers to create UX&UI Design of mobile and web applications
• Design user interfaces for mobile and web platforms in Figma
• Translate business goals and technical constraints into clean, user-friendly designs
• Conduct UX research and support usability improvements throughout product iterations

• Present design concepts to clients and internal teams, explaining the rationale behind design decisions

   

Our next steps:

1. Please share your resume and portfolio
2. Our recruiter will reach out if your experience matches our needs
3. Online interview with our team
4. Final feedback and decision
5. Welcome to the team!

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.

As a Business Analyst, your core mission is to bridge business needs and technical solutions, ensuring software aligns with requirements.

What you will do:

• Collaborate with stakeholders to gather, analyze, validate, and document business requirements;
• Evaluate and mitigate risks associated with project requirements;
• Advocate for stakeholders' needs and priorities;
• Work closely with developers, QA team, and other BAs to ensure that software solutions meet quality standards and functional requirements.

Requirements:

• 3+ years of experience in Business Analysis;
• At least intermediate proficiency in both written and spoken English;
• Proficiency in eliciting and documenting business requirements;
• Ability to break down large and complex tasks into simple and easy ones, build the correct connections between them, and the ability to describe the algorithm for developers;
• Ability to model and prototype interfaces in Figma or others;
• Experience in integrating with third-party systems (API, files exchange);
• Experience using Jira, Trello, browser Developer tools, Figma, Postman, Slack, any raster graphic editor;
• Confident understanding of various file formats (CSV, JSON, XML);
• Basic knowledge of SQL;
• Ability to model processes and data on UML diagrams;
• High level of mastery of Google Workspace or Microsoft Office tools.
   

Soft skills

• Strong analytical mindset with exceptional attention to detail and problem-solving abilities;
• Self-reliance and autonomy in work;
• Effective interpersonal and cross-cultural communication;
• Results-oriented with a focus on achieving goals and delivering outcomes.

What would be a plus but not required:

• Experience in CRM/Fintech.

About Orgmeter

OrgMeter is deal-flow, tracking and reporting software to help take your merchant cash advance business to the next level

Company website:

orgmeter.com 

Founded in 2012, Playson is a leading iGaming supplier recognized worldwide. We provide our customers with a high-end micro-service-based platform as a service that aims to process billions of financial transactions per day.

Our Game Client team is looking for a Senior QA Engineer (Automation & General) who is passionate about delivering a flawless gaming experience. You will dive deep into the new game client, work closely with developers, and create automated tests for both functionality and performance. Our goal is to make the client stable, fast, and visually perfect across all devices and browsers. Want to make the product flawless for players? We’re looking for you!

Why Join Us?

• Be a key player in a major tech transformation;
• Work on projects that impact millions globally;
• Enjoy a supportive, flexible work environment;
• Grow your skills with continuous professional development opportunities.

To succeed in the role, you will have:

• 4+ years of experience in test automation (front-end/back-end);
• Hands-on experience with Playwright;
• Strong grasp of QA methodologies, tools, and processes;
• Experience with Python (pytest, requests, sqlalchemy or similar);
• SQL and scripting proficiency;
• Solid understanding of HTTP/S, XML, JSON, HTML, CSS, JavaScript;
• Experience with Jira, Confluence, Zephyr;
• Experience with Git;
• At least an upper-intermediate level of English.

Would be beneficial to know:

• Automation with JavaScript (in addition to Python);
• Selenium experience;
• Experience with developing test frameworks for load and functionality tests, for the client on mobile devices/application;
• Experience working in an Agile/Scrum development process;
• Monitoring/observability: Datadog, New Relic, Splunk (or similar).

What will you be doing?

• Design, build, and maintain automation frameworks (functional and load/performance);
• Develop and maintain end-to-end tests for the game client (web & mobile);
• Plan and execute load and performance testing; define and track perf KPIs;
• Analyze requirements (including non-functional/performance) and create test strategies;
• Plan and prioritize testing activities; define positive/negative/boundary scenarios;
• Perform functional, regression, and integration testing;
• Ensure cross-browser/device compatibility and visual accuracy;
• Integrate automated tests into the CI/CD pipeline and keep suites green;
• Maintain clear test documentation and report quality metrics.

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.

Ambitious goals request a quick ability to maneuver through changes in the world. Playson is all about that. If the job description rings a bell — take action and apply! 🙌