Jobs at Djinni

About us:

ARRISE sets the benchmark for service delivery and excellence in the iGaming industry. Playing a key role in the success of its clients, which include Pragmatic Play, a brand relied upon by the world’s biggest online casinos for its cutting-edge products, ARRISE helps to deliver exceptional gaming experiences to millions of players worldwide.

Our global team of talented and driven professionals are shaping the future of iGaming. Headquartered in Gibraltar, we have offices spanning Canada, India, the Isle of Man, Latvia, Malta, Romania, Serbia, Bulgaria, and the UAE, and more exciting destinations on the horizon.

At ARRISE, we take pride in creating growth opportunities at all levels, constantly investing in our people while welcoming new colleagues and forging strategic partnerships that open new opportunities for success. 

To achieve this, we bet on ourselves. We know that success is a collective effort, and our team is driven by ambition, collaboration, and a shared commitment to grow and succeed—while embracing every step of the journey.

Be part of the future of iGaming with ARRISERS! See a job that excites you? Apply now, and our friendly recruitment team will connect with you soon. Your journey starts here!
 

Required skills:

· 5+ years of Java development.

· Strong programming skills with Java.

· Experience with OOP/OOD.

· Experience with clustered applications, pooling, connection management, transactions.

· Familiarity with programming specifics like asynchronous I/O, concurrency, distributed web systems and regression.

· A good foundation in algorithms, design patterns, and data structures.

· Experience with unit/functional testing.

· Strong experience with the most of Spring Framework/JDBC, databases (PostgreSQL).

· Strong experience with Javascript and React Framework.

· Maven, Git.

· Strong understanding of RDBMS concepts + SQL.
 

Will be a plus:

· Familiarity with NoSQL databases like Redis.

· Experience with Kubernetes and Nomad.

· Experience with AWS services.

· Experience with Oracle databases.

· Experience with distributed messaging systems, particularly RabbitMQ.

· Experience in application and infrastructure monitoring.

· Proven ability to troubleshoot production problems related to software applications.

· Exposure to high-load systems.

· Good spoken and written English skills.

Company offers:

· Long-term employment.

· Flexible timetable.

· Comfortable working conditions.

· Paid vacation and sick leaves.

· English lessons, gym.

· Competitive salary level.

Vacancy: Team Lead Media Buyer (Facebook)

Work format: Remote

Description:
We are looking for a very strong Team Lead Media Buyer with a serious and professional approach to work. This is not just a managerial role — the main result of this position is building a strong team that effectively manages very large advertising budgets with excellent ROI.
You will not need to run traffic personally — the key responsibility is to build and lead the team and ensure consistently high performance.

Key Responsibilities:

• Build and manage a team of media buyers (around 10 people; you may bring your own team).
• Plan tasks, distribute workload, and control team performance.
• Manage large advertising budgets on Facebook (Turkey, slot-based approach).
• Ensure high team efficiency, excellent ROI, and stable results across budgets.

Requirements:

• At least 3 years of experience as a Team Lead.
• Experience working in a product team.
• Age 30+.
• Hands-on experience as a Media Buyer with Facebook Ads.
• Experience working with Turkey and Bangladesh markets.
• English level: C1.
• Experience managing personal budgets of $15,000+ per day and team budgets from $500,000 to $1,000,000 per month.
• Strong logical thinking, data-driven mindset, and focus on results.
• Serious, professional attitude and the ability to build a strong, high-performing team that delivers real results.

We offer:

• Fully remote work.
• Opportunity to manage a team and large advertising budgets.
• Work in a professional, result-oriented team.
• Very competitive salary.

VACANCY: Product Manager 💖

We are an experienced iGaming company operating in more than 20 countries.

We are looking for a proactive Product Manager with experience in the iGaming industry, ready to quickly join the team and build efficient processes on a strong platform.

🚀 Responsibilities:

• Participate in launching new iGaming brands and supporting existing ones, with deep involvement in preparation processes;
• Launch, test, and optimize user acquisition, retention, and engagement funnels across different GEOs;
• Identify audience needs, analyze competitors, and apply best practices;
• Form hypotheses, run product experiments, and develop new features aimed at increasing retention and engagement metrics expressed through clear value indicators;
• Define key product metrics, prepare reports, and forecasts;
• Translate company goals into specific tasks and manage them through all stages: from idea formulation to final implementation;
• Conduct CustDev and in-depth user interviews, collect feedback and requests, convert them into features, and prioritize the backlog;
• Understand and manage the project’s Customer Journey Map;
• Closely collaborate and communicate with the platform development team.

🚀 Requirements:

• At least 2 years of experience in a similar role in the iGaming industry;
• Experience working with Tier 1 markets within the last 6 months;
• Project management experience: product launch, support, and scaling;
• Expertise in building product development hypotheses and running experiments to validate their effectiveness;
• Ability to identify problems and find value in tasks;
• Strong skills in analyzing key product metrics;
• Experience with competitor analysis and A/B testing;
• Ability to understand the technical aspects of the product;
• Systematic and flexible thinking, ability to structure information and make well-reasoned decisions;
• Proactive attitude and strong communication skills;
• English level B1+ is a plus.

🚀 We offer:

• Remote work format;
• Direct involvement in the company’s growth and real opportunities for professional development within a friendly and ambitious team;
• Opportunity to build a successful career;
• Competitive salary and bonuses.

About the project

We are developing and maintaining a large ERP system for a jewelry manufacturing and wholesale company.
The project is a long-term, continuously evolving legacy system with active feature development, refactoring, and integrations.

The product covers manufacturing processes, inventory, logistics, finance, and wholesale operations.
Work is fully remote, tasks are clearly defined, and communication is structured through the team — no direct contact with end clients.

Requirements

• 5+ years of experience with PHP
• Strong experience with native PHP (procedural → OOP → DI)
• Hands-on experience with:
  • Yii2
  • Laravel / Lumen
  • Workerman
• Solid understanding of:
  • OOP and design principles
  • WebSockets
  • REST and SOAP APIs
  • GitFlow
  • CI/CD pipelines
  • Linux environments
• Databases:
  • PostgreSQL
  • MySQL
  • Redis
• Frontend basics:
  • Native JavaScript
  • jQuery
  • HTML / CSS
• English level: B2 or higher (written and verbal communication)

Responsibilities

• Develop and maintain backend functionality for the ERP system
• Work with legacy code: improve, refactor, and extend existing modules
• Design and implement new features and integrations
• Develop and maintain APIs (REST / SOAP)
• Work with real-time features using WebSockets
• Optimize performance, stability, and database queries
• Fix bugs and ensure system reliability
• Collaborate with backend, frontend, and product team members
• Take ownership of tasks from analysis to delivery

Soft skills

• Strong self-management and ability to work independently
• Clear and structured communication
• Proactive mindset: identifies issues and proposes solutions
• High level of responsibility and ownership for results
• Ability to work effectively in distributed teams
• Strong time management and prioritization skills

Nice to have

• Experience working in Scrum teams (5+ people)
• Experience building complex ERP or CRM systems
• Knowledge of Python
• Experience with high-load or business-critical systems

We offer

• Full-time, fully remote work
• Long-term, stable project
• Clear task-based workflow
• No micromanagement
• Professional and experienced team
• Opportunity to work on a complex, real-world ERP system

Description

A program of projects within the Energy domain. We will work on various applications covering design, generation, distribution, transmission, and service crew control. The implementation area of these products is very high-scale (e.g. country-wide systems).

Requirements

• 5+ years of experience as .Net developer. At least 2 years as a Senior developer
• Proven experience with REST, Web API, Azure, Azure DevOps
• Proven experience with working on a microservice-based project
• Ability to lead a team of 4-6 engineers
• OOP Development, Design Patterns, Best Practices
• Good English to work with clients directly

Job responsibilities

• Strong problem-solving and follow-up skills; must be proactive and take initiative
• Professionalism and ability to maintain the highest level of confidentiality
• Create robust code and translate business logic into project requirements
• Develop code using development best practices, and an emphasis on security best practices
• Leverage technologies to support business needs to attain high reusability and maintainability of current and newly developed systems
• Provide system design recommendations based on technical requirements
• Work independently on development tasks with a minimal amount of supervision
• Write effective unit tests and integration tests to ensure high-quality software delivery
• Work with the team of engineers and QAs on the product backlog, support the Scrum Master and PO

We are looking for a Customer Support Representative to join our growing iGaming team. In this role, you will be the first point of contact for our players, providing fast, friendly, and professional assistance through live chat, email, and messengers. Your main tasks will include helping with account and payment questions, resolving issues, and ensuring a smooth and positive gaming experience.

📌 Requirements:

• Previous experience in customer support (iGaming experience is a big plus).
• Strong written and verbal English (knowledge of additional languages is a plus).
• Ability to work evening and night shifts.
• Excellent communication and problem-solving skills.

• Attention to detail and ability to multitask.

   

🔧 Responsibilities:

• Provide professional and friendly customer support via live chat, email, and messengers.
• Assist players with account, payment, and gameplay inquiries.
• Handle complaints and escalate technical issues when necessary.
• Ensure high-quality service and positive player experience.
• Collaborate with other departments to resolve customer cases.

🕒 Shifts:

• Morning: 08:00 – 16:00
• Evening: 16:00 – 00:00

Night: 00:00 – 08:00 (2 shifts per week)

✨ We offer:

• Full-time remote position with a stable 5/2 schedule.
• Competitive salary.
• Growth opportunities within the iGaming industry.
• Supportive international team and friendly environment.

We are looking for a Marketing (SEO & Content) Specialist who will be responsible for building and executing a strong SEO-driven marketing presence for the company.

This role combines SEO strategy, content, analytics, and cross-team collaboration, with a growing focus on AI-driven search visibility (AI-SEO / AISO).

Requirements:

• Experience in working with content: creation, administration, content plans, and content strategy;
• Experience in Social Media Management (SMM);
• Experience working with content and media platforms (websites, portals);
• Proven experience in developing marketing strategies for IT service companies;
• Experience with product companies is a plus, but not mandatory;
• Strong understanding of SEO principles (on-page, technical, content-driven SEO);
• Analytical mindset and ability to work with performance data;
• Proactive approach and strong communication skills.
   

Responsibilities:

1. SEO Strategy & Planning

• Develop and implement SEO strategy aligned with business and marketing goals;
• Plan, prioritize, and manage SEO tasks and initiatives.

2. Semantic Core & Website Structure

• Keyword research and clustering;
• Building logical site structure and resolving keyword cannibalization.

3. On-page & Content SEO

• Prepare content briefs and technical requirements for copywriters;
• Optimize landing pages and blog content;
• Work with meta data, internal linking, and content relevance.

4. Technical SEO

• Conduct technical SEO audits;
• Monitor indexing, website performance, and Core Web Vitals;
• Provide SEO support during website changes and migrations.

5. AI-SEO / AISO

• Optimize content for AI-driven search results (AI Overviews, ChatGPT, etc.);
• Improve brand visibility in AI-powered search environments.

6. Link Building & PR Support

• Control backlink quality;
• Participate in anchor list creation;
• Evaluate link placement effectiveness.

7. Analytics & Reporting

• Monitor rankings, traffic, conversions, and SEO KPIs;
• Analyze results and prepare regular reports.

8. Communication & Coordination

• Collaborate with developers, copywriters, and the marketing team;
• Control execution of SEO-related tasks."

Experience Level: Mid-level or higher

Responsibilities:

• Develop, test, and maintain web-related applications using Golang
• Rewrite legacy PHP apps to the Golang.
• Collaborate with cross-functional teams to define and design new features.
• Optimize applications for maximum speed and scalability.
• Troubleshoot and debug applications.
• Work with big data, ensuring the performance and reliability of applications.
• Maintain code integrity and organization.
• Document your own code in detail and with high quality.

Requirements:

• Mid-level or higher experience in Golang.
• Mid-level or higher experience in vanilla PHP and Laravel, YII.
• Strong knowledge of multithreading and memory management.
• Ability to work effectively with relational databases.
• Experience with High-Load projects, Memcached, Redis, ClickHouse will be advantageous.
• Strong analytical skills and attention to detail.
• Ability to work with and analyze large datasets.

About the Product

We are building an iOS application with real-time on-device audio processing powered by CoreML.

All ML logic runs fully on-device.
No raw audio is stored or sent to the backend.

We are looking for an engineer who has already built real-time audio + ML features in production and can start delivering immediately — no onboarding, no learning curve.

You MUST Have

• Proven commercial experience with CoreML in production
• Experience building real-time audio pipelines
• Hands-on work with AVAudioEngine
• Experience integrating audio streams into ML models
• Experience running audio + ML in background mode
• Performance optimization on real devices

If you do not have production experience with CoreML and real-time audio — this role is not a fit.

Responsibilities

• Build and maintain the pipeline:
  Microphone → Audio processing → Feature extraction → CoreML inference → UI
• Optimize latency and CPU usage
• Ensure stability across devices
• Handle background audio execution
• Maintain strict privacy (no raw audio storage)

Nice to Have (but still relevant)

• Experience with Accelerate / vDSP
• Experience with SoundAnalysis
• Experience with acoustic event detection (laughter, shouting, silence, etc.)

One-Line Summary of Who We’re Looking For

A production-ready Senior iOS engineer who has already shipped real-time CoreML audio features and can work independently from day one.

Format: Remote / Full-time / Long-term
Location: Worldwide
Model: Fixed price per stage / project (no hourly, no salary)

📌 Responsibilities

• Build low-latency systems (<100ms) for crypto announcement monitoring
• Develop high-speed parsers for social media and exchanges
• Bypass Cloudflare / anti-bot protections at protocol level (not browser automation)
• Work with WebSocket, real-time streaming, async pipelines
• Design proxy infrastructure, anti-ban, rate-limit bypass systems
• Participate in development of trading bots and fintech tools

✅ Requirements

• Strong experience with Go (goroutines, channels, net/http, fasthttp)
• Proven experience building low-latency systems
• Real experience bypassing Cloudflare without Selenium/Playwright
• Deep understanding of concurrent / event-driven systems
• Experience with WebSocket / streaming APIs
• Knowledge of TCP/IP, TLS, handshakes, fingerprinting
• Background in crypto / fintech / scraping

⭐ Nice to Have

• Trading bots for announcements / Twitter
• Real cases with measured latency results
• Experience with Binance / OKX / Bybit APIs
• Reverse engineering / network debugging

📂 What We Expect

• CV
• Short description of relevant projects
• Demo / video / GitHub (if available)
• Answers to technical questions

💼 Work Model

• Long-term partnership
• Multiple parallel projects
• High autonomy
• Result-oriented, not hour-based

Format: Remote / Full-time / Long-term
Location: Worldwide
Model: Fixed price per stage / project (no hourly, no salary)

📌 Responsibilities

• Build low-latency systems (<100ms) for crypto announcement monitoring
• Develop high-speed parsers for social media and exchanges
• Bypass Cloudflare / anti-bot protections at protocol level (not browser automation)
• Work with WebSocket, real-time streaming, async pipelines
• Design proxy infrastructure, anti-ban, rate-limit bypass systems
• Participate in development of trading bots and fintech tools

✅ Requirements

• Strong experience with Node.js (async/await, streams, clustering, workers)
• Proven experience building low-latency systems
• Real experience bypassing Cloudflare without Selenium/Playwright
• Deep understanding of event-driven architecture
• Experience with WebSocket / streaming APIs
• Knowledge of TCP/IP, TLS, handshakes, fingerprinting
• Background in crypto / fintech / scraping

⭐ Nice to Have

• Trading bots for announcements / Twitter
• Real cases with measured latency results
• Experience with Binance / OKX / Bybit APIs
• Reverse engineering / network debugging

📂 What We Expect

• CV
• Short description of relevant projects
• Demo / video / GitHub (if available)
• Answers to technical questions

💼 Work Model

• Long-term partnership
• Multiple parallel projects
• High autonomy

Our family-style team is looking for a Frontend Tech Lead to drive the architectural evolution of our core product. You will be the owner of the frontend architecture, responsible for rebuilding an existing system with a strong focus on scalability, performance, and maintainability. This is an Individual Contributor role with high ownership, requiring a blend of hands-on fast-paced coding and high-level frontend system design.

About the Project
The project drives growth and revenue for gaming companies through a collaborative GenAI platform that enables teams to create and scale content from a single prompt. The company is fast-growing and VC-backed (post-seed).

What We’re Looking For

Proven Track Record: 8+ years of experience building and evolving production systems from scratch for real users.
Strong Frontend Expertise: Extensive experience with a modern React + TypeScript stack and best-in-class frontend libraries.
Architectural Wisdom: Ability to evaluate trade-offs between performance, scalability, cost, and maintainability.
Startup DNA: Prior experience in high-velocity startup environments is a must.
AI Tooling: Proficient with Cursor or similar AI-powered IDEs. Experience with AI/LLM integrations is a plus.
Production Excellence: Hands-on experience with monitoring, debugging, performance optimization, and handling production incidents.

The ideal candidate must demonstrate mastery in the following areas

Frontend (Primary Focus)

• Core: React, TypeScript (Non-negotiable), Vite, Pnpm.
• Rendering (Critical): Proven experience with Canvas rendering engines (Fabric.js, Konva.js, PixiJS, or raw HTML5 Canvas/WebGL). 
• State & Data: TanStack Query (React-Query), TanStack Router (preferred) or React Router.

• UI / UX System: Headless UI (Base UI / Shadcn), Storybook (+ Figma sync), advanced UI patterns (Infinite Grid).

   

Backend & Integration

• Languages: Python (strong knowledge required for BE-FE integration).
• API Design: OpenAPI Typescript (Type-safe BE requests), WebSockets, Short/Long Polling mechanisms, and Queue management.

• Databases: SQL/RDBMS (must), PostgreSQL / DynamoDB / Milvus (nice-to-have).

   

Testing & Monitoring

• Testing: Vitest, React Testing Library.
• Observability: Experience with Sentry/Coralogix or similar (Datadog, Grafana, Prometheus).

Seniority & Experience

• 8+ years of experience, specifically building/evolving production systems from scratch for real users.
• Ability to identify trade-offs between performance, scalability, cost, and maintainability.
• Prior experience in high-velocity startup environments is a must.
• AI Tooling: Proficiency in Cursor or similar AI-powered IDEs.
• AI-integrated IDEs: Experience with AI/LLM integrations is a plus.

Working Style

• High Ownership: You are the owner of the frontend architecture.
• Methodology: Agile development, using Jira for ticket-based tracking.

• Communication: High English proficiency and a strong leadership mindset. You will work closely with the Team Lead, PM, and other developers in a highly collaborative environment.

   

What we offer

• A really promising long-lasting project (you will be proud of yourself).
• Sane and polite, but effective management.
• The best corporate culture (according to our teammates' opinions).
• Competitive salary and other stuff.
• Remote work, full time.

• Becoming not just another team member, but a part of UKAD with unique value and long-term relationships.

   

Some facts about UKAD to help you make a decision
During 2022-2025, we only increased cooperation with our foreign partners.
UKAD combines benefits of family-sized companies, like no bureaucracy, easy access to the executives, with sustainable growth and vast opportunities.
Our company is strong enough to be not just a vendor but a tech partner. We can afford to choose customers that respect developers.
UKAD is one of the leading employers in Kharkiv, according to DOU.

Aren't we the company you're looking for?

About the Role

We’re Umbrelly.Cloud - an AI-powered platform helping companies cut up to 25% of their AWS, Google Cloud, and Azure bills. 🚀

We’re looking for a B2B Sales Manager who knows how to take warm leads (people already interested in our product) and confidently close them into long-term clients. If you’re ambitious, proactive, and love winning deals - you’ll feel at home here.

What You’ll Do

• Work with warm inbound leads: guide them from “interested” to “signed deal.”
• Build strong relationships with founders and C-level executives.
• Negotiate terms and close deals with a clear, results-first approach.

• Collaborate with our tight-knit team to improve processes and grow faster.

   

Requirements

• English C1+ (fluent, professional level).
• Proven success in B2B SaaS sales.
• Strong networking and deal-closing mindset.
• Solid negotiation experience at founder/C-level.
• Tech/product background is a big plus (bonus if you’ve been a developer or worked in tech-driven teams).

• Other languages = nice advantage.

   

About Umbrelly.Cloud

• $500k raised, 100+ B2B clients, and MRR growth of 400% in just 2 years.
• A global, 5-person team working closely together across Europe and beyond.
• Regular team bootcamps and meetups (Warsaw, Lisbon, Silicon Valley).
• A culture that values results, collaboration, and enjoying the journey. 🌍✨

 If you’re a confident closer who wants to join a fast-scaling SaaS startup, let’s talk.

QIT Software is looking for a Software Engineer who thrives on solving complex technical challenges and improving product stability, performance and scalability. In a SaaS environment, you’ll work across our upstream and midstream product lines to ensure it’s running efficiently and reliably for our customers.

Requirements:

- Bachelor’s degree in computer science or engineering
- Strong computer science foundation in algorithms
- 3+ years of experience as a software engineer in a SaaS or cloud-based environment
- Experience working on enterprise web application development
- Experience with Ruby 
- Experience with relational databases, such as SQL Server
- Experience with JavaScript Libraries


Responsibilities:

- Diagnose and resolve production issues impacting uptime, stability, or performance.
- Profile and optimize code, database queries, and API interactions to improve response times and scalability.
- Collaborate with Product and QA teams to enhance reliability and maintainability of core systems.
- Develop clean, efficient, and well-documented code using modern software development practices.
- Participate in code reviews, architecture discussions, and performance tuning initiatives.
- Contribute to continuous improvement efforts across the full SDLC — from incident prevention to automated testing and deployment.

Work conditions:

- The ability to work remotely from anywhere in the world;
- Flexible work schedule, no micromanagement, no strict deadlines and free overtime work;
- Work in European and American products with a modern technology stack in different domains (Finance, Technology, Health, Construction, Media, AI, Blockchain, etc.);
- Revision of wages every year or on an individual basis;
- Accounting support;
- 100% compensation for remote English lessons;
- 15 paid leaves (PTO) and public holidays.

Role Overview

Nucleus AI is seeking an AI / ML Data Scientist to help build and scale an AI-backed Learning Management System (LMS) that delivers personalized, adaptive learning experiences.

This is a hands-on, product-focused role at the intersection of machine learning, data science, and learning technology. You will design and deploy intelligent systems that directly impact learner engagement, personalization, assessment, and outcomes.

If you enjoy turning real-world data into models that are used by real users—and iterating on them in production—this role is for you.

Key Responsibilities

Machine Learning & Modeling

• Design, develop, and deploy machine learning models that power:
  • Personalized learning paths
  • Content and course recommendations
  • Learner analytics and insights
  • Adaptive assessments and feedback
     
• Build models for:
  • Learner skill inference and knowledge tracing
  • Engagement, completion, and drop-off prediction
  • Automated assessment scoring and feedback
     

Data & Analytics

• Analyze large-scale learner behavior data to extract actionable insights
• Develop and maintain data pipelines, feature engineering workflows, and model evaluation frameworks
• Apply statistical analysis and experimentation (including A/B testing) to validate model performance and impact
   

Collaboration & Product Integration

• Work closely with product managers, engineers, and instructional designers to translate learning objectives into AI-driven solutions
• Integrate models into production systems via APIs, batch pipelines, or real-time inference
   

LLMs & Advanced Techniques

• Experiment with and integrate LLMs and NLP techniques for:
  • Content generation
  • Learner feedback
  • Intelligent learner support
     
• Monitor models in production for performance, bias, and drift, and continuously improve them
   

Documentation & Governance

• Document models, assumptions, experiments, and results to ensure transparency, reproducibility, and maintainability
   

Required Qualifications

• Bachelor’s or Master’s degree in Data Science, Computer Science, AI/ML, Statistics, or a related field
• Strong proficiency in Python and common ML libraries (e.g., scikit-learn, PyTorch)
• Solid understanding of:
  • Supervised and unsupervised learning
  • Feature engineering and model evaluation
  • Statistical analysis and experimentation
     
• Experience working with both structured and unstructured data
• Proficiency in SQL and working with large datasets
• Ability to clearly communicate complex technical concepts to non-technical stakeholders
   

Nice-to-Have Qualifications

• Experience building ML systems in ed-tech, LMS platforms, or learning analytics
• Familiarity with
  • Large Language Models (LLMs)
  • NLP
  • Recommendation systems
  • Knowledge graphs
• Experience deploying models to production environments
• Exposure to cloud platforms such as AWS, GCP, or Azure
• Understanding of learning science, instructional design, or assessment theory
• Experience with MLOps tools (model versioning, monitoring, CI/CD for ML)
   

What We Offer

• Opportunity to work on mission-driven AI that improves how people learn
• Ownership of ML systems used by real learners at scale
• A collaborative, cross-functional team culture
• Competitive compensation and benefits
• Flexible work location and schedule
• Continuous learning and professional growth opportunities