Jobs at Djinni

Casino.Ua is more than just an online casino. We create an atmosphere of drive and celebration, where every click brings emotions, thrill, and a new level of adventure. By combining gaming with the vibe of nightlife, we deliver an unforgettable experience to our players.
 

Our mission is not just to entertain but to bring wow-experiences and raise the bar in iGaming. If you also enjoy what you do and want to make an impact on the product — then we’re on the same page.
 

We are currently looking for a Regional Marketing Manager (Ukraine) — someone who can build an effective marketing strategy, manage traffic acquisition channels, diversify them, and maximize ROI.
 

Key Responsibilities:

• Marketing: Market analysis (SWOT), identifying new growth opportunities, developing and optimizing acquisition channels within the approved budget. Initiating marketing campaigns together with Promo, Brand, and CRM teams to attract new players.
• Management: Functional leadership of internal teams, providing clear tasks, and coordinating operational activities.
• Legal: Close cooperation with the Legal department to ensure full compliance with local regulations and monitoring legislative changes.
   

Requirements:

• Minimum 2 years of experience in digital marketing (preferably in iGaming)
• Strong commercial mindset and leadership skills
• Ability to work with data and analyze trends
• Experience in managing budgets and P&L
• Attention to detail
• Strong communication and networking skills
• Ability to prioritize effectively
• English level — Upper-Intermediate or higher
   

What we offer:

• 30 vacation days per year
• Medical insurance or sports compensation
• English courses and partner discounts
• Full-time employment, flexible schedule, no micromanagement
• Work from anywhere in the world — or enjoy our stylish Kyiv office near Vasylkivska metro (stable internet and electricity guaranteed!)

About the Position

We are seeking an experienced DevOps Engineer with deep knowledge of Linux and Kubernetes to support and develop our infrastructure. The primary focus is ensuring the reliability and scalability of web services and email infrastructure.

Key Responsibilities

1. Infrastructure Management:

• Linux server administration (Debian)
• Deploying and managing Kubernetes clusters in production environments
• Configuring and optimizing web servers (Nginx, Apache)

• Monitoring service performance and availability

   

2. Web Infrastructure:

• Setting up load balancing and high availability
• Managing SSL certificates and HTTPS configuration
• Web application performance optimization
• CDN and caching configuration

• DNS records and domain name management

   

3. Email Infrastructure:

• Deploying and maintaining mail servers (Postfix, Dovecot, Exim)
• Configuring SPF, DKIM, DMARC for spam protection
• Monitoring mail server reputation
• Managing mail queues and troubleshooting delivery issues

• Setting up anti-spam filters and antivirus protection

   

4. DevOps Practices:

• Deployment automation through CI/CD (GitLab CI, Jenkins,)
• Writing and maintaining Infrastructure as Code (Ansible)
• Application containerization (Docker, Docker Compose)

• Developing Helm charts for Kubernetes deployments

   

Requirements

Required Skills:

• 3+ years of Linux administration experience
• Hands-on experience with Kubernetes in production
• Strong proficiency in Docker and containerization principles
• Experience with Nginx/Apache web servers
• Knowledge of network protocols: TCP/IP, HTTP/HTTPS, DNS
• Experience writing bash/python scripts for automation

• Experience with php CMS/Frameworks

   

Preferred Skills:

• Experience configuring mail servers (Postfix)
• Knowledge of monitoring systems (Grafana, ELK Stack, Zabbix)
• Experience with cloud providers (AWS, GCP, OVH)
• Understanding of GitOps principles
• Experience with databases (PostgreSQL, MySQL, Redis)

• Understanding of information security fundamentals

   

We Offer

• Competitive salary based on interview results
• Professional development and training at company expense
• Participation in exciting projects with modern technology stack

• Friendly team of professionals

   

Nice to Have

• CKA/CKAD certifications (Certified Kubernetes Administrator/Developer)
• Experience migrating services to Kubernetes
• Open-source project contributions
• Experience with high-load projects
• Knowledge of SRE (Site Reliability Engineering) practices

ABOUT US:

BetterMe is a health & wellness platform providing a tailored holistic approach to well-being. Since 2017, we have been on a mission to create a healthier world for everyone, regardless of age, sex, physical ability, or background.

Our goal is to make a healthy lifestyle accessible to everyone so they can achieve long-term health benefits.
 

YOUR IMPACT:

• Work collaboratively as a part of the team alongside backend developers;
• Assume responsibility for various components of the backend infrastructure;
• Contribute to the CI/CD processes of the projects;
• Engage in effective communication with DevOps and product teams;
• Participate in making decisions regarding application architecture and database design.

ABOUT YOU:

• More than 4 years of hands-on experience with Node.js;
• Good knowledge of JavaScript;
• Skilled in working with relational databases;
• Familiarity with Amazon Web Services (AWS) infrastructure;
• Knowledgeable about DevOps practices;
• In-depth understanding of CI/CD processes;
• Firm grasp of SOLID principles.

WOULD BE A PLUS:

• Work experience in high-load projects.

For a clearer comprehension, feel free to familiarize yourself with our technology stack:

• Databases: PostgreSQL, Prisma
• Backend: Node.js, Nest.js
• Cloud & Orchestration: Kubernetes, AWS
• Version Control & Collaboration: GitHub

Our mission is creating happiness within since we believe that having your mind and body in complete harmony is key for overall health and quality of life. We plan to capture the growth of the Global Health Market, and our ideal candidate will focus on building the largest health tech company in the world. 💪
The success of the product became possible through the hard work and dedication of 400+ talented and forward-thinking employees who are true experts in their field. We're one of the biggest partners of Facebook, Google, Snapchat & Twitter within the CEE region.🌎
Our company is built on the ability to find the best people and provide them with everything needed to stay focused on what’s important to make our users even healthier, sportier, happier and better! We create a business environment that brings up best in everyone. We have no bureaucracy, and we give our colleagues complete freedom to make decisions and achieve brilliant results.🚀
Competitive salary. Compensation that will help you focus on your projects and personal development.
Professional Growth. We offer a possibility to attend internal, external courses, seminars and access to a corporate library. You will be working with a team of professionals to get insights and discuss ideas.
Comfortable working environment. We provide all necessary work equipment for your role and serve complimentary breakfasts, lunches, and snacks in the Kyiv office.
Health&Fitness. We provide employees with 20 days of paid vacation, medical insurance and a variety of sports activities available for employees inside and outside the office.
Rest. We organize team buildings, parties and various team activities to boost our collaboration.

We’re looking for DevOps with 5+ year to join our team.

We are a full-service UX Design & Software Development Company and currently searching of proactive and communicable colleagues for the realization of all our big plans. We like to solve complex problems by focusing on the result and increasing the skills of our employees.
 

Currently we are looking for a DevOps Engineer.

If you like to solve different tasks and you want to grow as a cloud engineer, join us :)
 

Required skills:
- 5+ year of experience as DevOps Engineer preferably with AWS cloud;
- Experience with AWS (ECS, ECR, EC2, VPC, IAM, S3, Cloudtrail, CloudWatch, RDS, AWS backups, ALB, Route53, GuardDuty);
- Experience in processes of releasing software using principles CI/CD with gitlab;
- Strong experience of administration of Linux (Unix) and writing bash scripts;
- Knowledge of network technologies and network security principles (TCP / IP, Ethernet, NAT, routing, ACL);
- Experience with web-server (Nginx);
- Experience with databases SQL (Postgres Aurora) and NoSQL (DynamoDB) and managing them;
- Experience with GitHub Actions;
- Strong knowledge of containerization technologies (Docker);
- Strong problem solving skills.
- Experience with Terraform and Ansible;

Will be a plus:
- Experience with New relic;
- Experience with CDK / CloudFormation
- Experience with AWS Lambda
- API Gateway authentication (JWT, OAuth2, Cognito)
- AWS WAF & Shield for DDoS protection
- Upper-Intermediate/ Advanced English.

What company offers:
- Opportunity to work on interesting foreign projects in the team of professionals;
- Friendly style of management;
- 21 working days of paid vacations, paid sick leaves;
- Flexible working schedule (9 a.m.- 6 p.m. or 10 a.m.-7 p.m.);
- Remote mode of work.

We are looking for an experienced Data Engineer to join a long-term B2C project. The main focus is on building Zero ETL pipelines, as well as maintaining and improving existing ones.

Responsibilities:

• Build and maintain scalable Zero ETL pipelines.
• Design and optimize data warehouses and data lakes on AWS (Glue, Firehose, Lambda, SageMaker).
• Work with structured and unstructured data, ensuring quality and accuracy.
• Optimize query performance and data processing workflows (Spark, SQL, Python).
• Collaborate with engineers, analysts, and business stakeholders to deliver data-driven solutions.

Requirements:

• 5+ years of experience in Data Engineering.
• Advanced proficiency in Spark, Python, SQL.
• Expertise with AWS Glue, Firehose, Lambda, SageMaker.
• Experience with ETL tools (dbt, Airflow etc.).
• Background in B2C companies is preferred.
• JavaScript and Data Science knowledge are a plus.
• Degree in Computer Science (preferred, not mandatory).

We are looking for a Data Scientist to support a Data & AI team. The role is focused on developing scalable AI/ML solutions and integrating Generative AI into evolving business operations.

About the Role

As a Data Scientist, you will:

• Collaborate with Product Owners, Data Analysts, Data Engineers, and ML Engineers to design, develop, deploy, and monitor scalable AI/ML products.
• Lead initiatives to integrate Generative AI into business processes.
• Work closely with business stakeholders to understand challenges and deliver tailored data-driven solutions.
• Monitor model performance and implement improvements.
• Apply best practices in data science and ML for sustainable, high-quality results.
• Develop and fine-tune models with a strong focus on accuracy and business value.
• Leverage cutting-edge technologies to drive innovation and efficiency.
• Stay updated on advancements in AI and data science, applying new techniques to ongoing processes.

About the Candidate

We are looking for a professional with strong analytical and technical expertise.

Must have:

• 3+ years of hands-on experience in Data Science and ML.
• Experience with recommendation systems and prescriptive analytics.
• Proficiency in Python, SQL, and ML libraries/frameworks.
• Proven experience developing ML models and applying statistical methods.
• Familiarity with containerization and orchestration tools.
• Excellent communication skills and strong command of English.
• Bachelor’s or Master’s degree in Computer Science, Statistics, Physics, or Mathematics.

Nice to have:

• Experience with Snowflake.
• Exposure to Generative AI and large language models.
• Knowledge of AWS services.
• Familiarity with NLP models (including transformers).

Key Responsibilities: 

• Support and maintain production deployments 
• Extend and maintain existing Azure infrastructure using Terraform 
• Support secrets rotation mechanisms 
• Ensure secure and stable access for all team members to necessary services 
• Maintain and improve CI/CD pipelines (Azure DevOps Pipelines) 
• Manage and enforce structured access control policies for team members 
• Implement and maintain horizontal scalability best practices 
• Experience with AKS
• Experience with Azure Virtual Machine Scale Sets
• Deploy and manage Kubernetes clusters and microservices architectures 
• Configure and manage load balancers and Azure Traffic Manager 
• Work with and optimize the following Azure services: 
• Manage networking, including: 
• Apply cloud security best practices, including: 
• Manage Azure costs, budgets creation, and budget monitoring 

• Requirements: 
• 3+ years of experience as a DevOps Engineer (B2B SaaS preferred) 
• Proven experience with Terraform and infrastructure as code 
• Strong understanding of Kubernetes, microservices, and CI/CD pipelines 
• Proficiency with Azure services (as listed above) 
• Networking and cloud security knowledge 
• Analytical mindset with attention to detail 
• Strong problem-solving skills with minimal need for escalation 
• High level of self-organization and reliability 
• English level B2+ or higher 

• Bonus Points: 
• Azure, Kubernetes, or DevOps certifications 
• Experience in automation of complex workflows 
• Proven track record in optimizing cloud costs 
• Experience with multi-region cloud infrastructure 
  
  Based on the interview results, a test assignment is possible.

We are looking for Native Android Developer (Kotlin)

Our client is a digital consulting and solutions provider specializing in wealth management transformation. They help leading financial institutions — such as wealth managers, banks, advisors, and retirement providers—accelerate growth, improve operational agility, and scale effectively through tailored technology services.

Collaboration format: outstaff, contract-based.
Hourly rate: up to 20$/h
Direct communication with the client — good English and a presentable manner are important
Location: Poland
 

Requirements:

— 3+ years of experience in Android development;
— Ability to design clear and maintainable architecture following SOLID, KISS, and YAGNI principles;
— Strong knowledge of Kotlin and the Android SDK, including understanding their capabilities and limitations;
— Production experience with Jetpack Compose;
— Understanding of architectural patterns such as MVVM, MVI, Clean Architecture, and the ability to justify the choice of the most suitable one;
— Experience building features end-to-end: design, implementation, release, monitoring, and iteration;
— Experience integrating analytics, tracking key metrics, and ensuring observability of mobile features;
— Understanding of the Android component lifecycle, multithreading, and asynchronous logic;
— Experience working with REST/GraphQL APIs, WebSocket, Retrofit/Ktor, Apollo, navigation, and dependency injection (Koin);
— Hands-on experience with unit, integration, and end-to-end (E2E) testing;

We are looking for iOS Developer (Swift).

Our client is a digital consulting and solutions provider specializing in wealth management transformation. They help leading financial institutions — such as wealth managers, banks, advisors, and retirement providers—accelerate growth, improve operational agility, and scale effectively through tailored technology services.

Collaboration format: outstaff, contract-based.
Hourly rate: up to 20$/h
Direct communication with the client — good English and a presentable manner are important
Location: Poland
 

Requirements:
— 3+ years of commercial experience in iOS development

— Strong proficiency in Swift (Objective-C experience is a plus)

— Deep understanding of iOS SDK, UI frameworks, and design principles

— Experience integrating RESTful APIs and working with JSON/XML

— Knowledge of version control systems (Git)

— Experience with unit testing and debugging tools

— English level B2 or higher (written and spoken)

About the Role

We are seeking a skilled Salesforce Developer to design, build, and maintain scalable solutions within our Salesforce ecosystem. You will play a key role in translating business requirements into technical solutions, ensuring best practices, system performance, and seamless integrations with external platforms.

What You’ll Do

• Partner with admins, IT, and stakeholders to gather requirements and deliver effective solutions.
• Perform technical analysis to define scalable, feasible approaches aligned with business goals.
• Develop and maintain Salesforce applications using Apex, Lightning Web Components (LWC), Flow, and Triggers.
• Manage smooth deployments leveraging Git, CI/CD pipelines, and DevOps best practices.
• Troubleshoot and resolve complex technical issues, minimizing downtime and enhancing user experience.
• Stay current with Salesforce releases, features, and best practices to continuously optimize our environment.

What You’ll Bring

• 2+ years of proven experience in Salesforce development and configuration.
• Strong skills in Apex, LWC, Flow, and Triggers.
• Experience with Sales Cloud, Service Cloud, Experience Cloud, or Marketing Cloud/Pardot.
• Knowledge of Salesforce administration, data management, and security configuration.
• Familiarity with version control systems (Git) and deployment processes.
• Ability to work in a fast-paced environment, managing multiple priorities effectively.
• Proficiency in English (written and spoken).

Bonus Points For

• Salesforce Administrator Certification (ADM-201, ADM-211).
• Salesforce Platform App Builder Certification.
• Salesforce Platform Developer Certification.
• Strong analytical and problem-solving skills.

Description

Founded in 2007, Rubicon Project’s pioneering technology created a new model for the advertising industry. Today, our automated advertising platform is used by the world’s leading publishers and applications to transact with top brands around the globe, enabling them to reach more than 1 billion consumers. Rubicon Project operates the largest independent Display Advertising Exchange and Supply Side Platform that automates the buying and selling of Display Advertising across all formats (banner, video) on all devices (desktop browsers, mobile devices, billboards). Rubicon Project auctions over 20 Billion Ads on a daily basis in real-time in less than 1/2 of a second each. Rubicon Project is a publicly traded company (NYSE: RUBI) headquartered in Los Angeles, California, USA.

Requirements

• Experience building and operating large-scale, high-throughput, enterprise apps;
• 3+ years of working experience in server-side Scala;
• Working experience with data processing systems (Hadoop, Hive, Kafka, Spark);
• A strong understanding of algorithms, data structures, and an ability to recognise the business and technical trade-offs between different
  solutions;
• Expertise in threading and concurrency;
• Experience with automated testing frameworks (TDD, Mocking, Unit/Functional/Integration);
• Experience with SQL queries (MySQL is a plus);
• Experience with development and CI tools (Maven, git, Jenkins, Puppet, Crucible, Jira, Airflow, Python is a plus);
• Experience working in a Linux environment;
• Expertise in building software in an agile development environment;
• Demonstrated strong English language verbal and written communication skills.

Job responsibilities

• Write production-ready code and unit tests that meet both system and business requirements;
• Respond to feature requests, bug reports, performance issues, and ad-hoc questions;
• Work collaboratively with multiple teams to deliver quality software.
• Comfortable in multi-tasking and fast-pacing dev process;
• Support operation of services in production.

Join Our Fast-Growing iGaming Company!
Take the lead in ensuring high-quality, seamless user experiences for thousands of players worldwide. At 7Rings Gaming, we create slot games from scratch — from the first idea to the formulas that shape RTP, volatility, and bonus systems.
We’re looking for a Game Mathematician to design models, balance games, and turn numbers into fun experiences for players.

What You’ll Do:

• Design mathematical models (RTP, volatility, hit frequency, distribution curves).
• Balance games: from payout tables to bonus systems and free spins.
• Write simulations, analyze results, and find optimal solutions.

• Collaborate closely with game designers and developers.

   

We’re Looking For Someone Who:

• Has 3+ years of experience in game mathematics or game design with a strong math focus.
• Understands slot mechanics, RTP, volatility, and bonus systems.
• Is proficient with Excel / Google Sheets.
• Pays attention to detail but also thinks creatively.

• Has basic programming knowledge (advanced level is a big plus).

   

You’ll Be a Great Fit If You:

• Think like a player but analyze like a mathematician.
• Want to experiment and create new things instead of copy-pasting old features.

• Get excited by numbers, formulas, and challenges.

   

What We Offer:

• Flexible, remote-friendly work environment.
• Formal employment with paid sick leave (7 days/year) and annual vacation (21 days/year).
• A collaborative and innovative team culture where your ideas matter.
• The opportunity to shape high-performing games in a growing company.
• Personal attention and support for every team member.

BigD is seeking a talented Affiliate Manager to join our dynamic team. BigD is an iGaming operator focused on the LATAM (top brand). But that’s not all — we also have a thriving Affiliate Program, a handy Payment solution, and an AI user acquisition solution. We are a big family of over 500+ creative minds.

Key Responsibilities

• Develop and execute SEO strategy for the LatAm market 
• Build, lead, and mentor a high-performing SEO team (from junior to senior level).
• Conduct technical audits, optimize website architecture, internal linking, and structured data implementation.
• Manage link-building strategies (white-hat, outreach, PBNs, scalable custom methods).
• Perform competitor and market research to identify search trends and opportunities in LatAm.
• Handle Google penalties recovery and ensure resilience to algorithm updates.
• Define and monitor KPI & OKRs for the team, ensuring ROI-driven SEO performance.
• Collaborate cross-functionally with marketing, content, product, and design teams to maximize organic growth.

Requirements

• 5+ years of SEO experience, including 2+ years in a leadership role (Head / Lead).
• Proven track record in iGaming, betting, and casino niches in highly competitive markets.
• Hands-on expertise in LatAm SEO: local search dynamics, user behavior, and content specifics.
• Deep knowledge of full-cycle SEO: technical, content, off-page.
• Strong experience with Google penalties recovery and algorithm updates.
• Experience building SEO departments from scratch and scaling teams 
• Business-oriented mindset with a focus on traffic growth, conversions, and ROI, not just rankings.
• Proficiency in SEO tools: Ahrefs, Semrush, Screaming Frog, Netpeak Spider, GA4, GSC, Looker Studio, Aparser, ZennoPoster, Tag Manager.
• English — Upper-Intermediate+ (working proficiency); Spanish or Portuguese — a strong plus.

Working conditions:

• Direct communication with the core TEAM
• 28 calendar days of vacation
• Paid sick leave
• Sports compensation
• Compensation for courses and training
• Day off for birthday
• Flexible work schedule
• Regular salary reviews
• Salary paid at a favorable rate
• Non-toxic work environment, free of bureaucracy
• Stable salary payment

The role covers architecture, production deployment, and continuous performance monitoring.

Responsibilities:
Architect, fine-tune, and evaluate advanced ML models (including large language models) to support modular intelligent behavior.
Build reliable end-to-end ML workflows: data ingestion, feature preparation, model training, deployment, and monitoring.
Develop and maintain scalable serving infrastructure using containers (Docker, Kubernetes) and integrate with backend services.
Establish evaluation pipelines, run A/B experiments, and track performance metrics to ensure model effectiveness.
Guarantee reproducibility, compliance, and transparency across the full ML lifecycle.
Work with backend teams to define service SLAs and optimize real-time inference.
Mentor teammates and help shape engineering best practices.

Requirements:
5+ years of experience as an ML Engineer or applied researcher with hands-on deployment of production models.
Advanced Python skills with strong knowledge of ML frameworks (PyTorch, TensorFlow) and modern LLM tooling (e.g. HuggingFace).
Proficiency in MLOps: Docker, Kubernetes, model serving frameworks (Triton, FastAPI), CI/CD automation.
Familiarity with data pipelines, SQL, and cloud ML platforms (AWS, GCP, Azure).
Strong grasp of experimentation, A/B testing, and ML performance measurement.
Collaborative mindset, comfortable working with product, data, and engineering teams.

Preferred:
Experience with conversational AI, retrieval-augmented generation, or orchestrating multi-model systems.
Knowledge of vector search technologies (FAISS, Pinecone) and modern embedding methods.
Understanding of prompt design and RLHF approaches.
Startup background and ability to thrive in fast-changing environments.

What We Offer:
Competitive salary 
Direct collaboration with seasoned founders and industry experts.
Fast-paced environment with minimal bureaucracy.
Opportunity to shape cutting-edge AI applications in a high-impact domain.

Job Description

We are seeking a Principal Mobile Software Engineer – Mobile to join our team in developing cutting-edge mobile software for medical devices. This role emphasizes Android development with strong expertise in Bluetooth Low Energy (BLE) communication and a willingness to contribute to iOS development. You will play a critical role in building secure, reliable, and user-friendly mobile applications that interact with medical hardware and comply with industry regulations.

• 8+ years of experience in mobile application development, with at least 5+ years in Android (Kotlin/Java).
• Hands-on experience with BLE protocols for mobile-device interaction, ideally in healthcare or medical applications.
• Deep understanding of BLE operations: scanning, connecting, bonding, characteristic read/write, notifications, background tasks.
• Experience working in or willingness to learn iOS development (Swift/Objective-C, CoreBluetooth).
• Familiarity with medical device software development lifecycle (IEC 62304), software documentation, and quality systems.
• Experience with Agile/Scrum methodologies and version control systems (Git).
• Strong analytical, debugging, and communication skills.
• Strong oral and written communication skills
• Ability to work independently and come up with solutions that are well thought out and technically sound
• Demonstrated experience in software development lifecycle (Agile), object-oriented design methodology
• Demonstrated technical leadership skills
• Creative / innovative thinker
• Good organizational and multi-tasking skills
• Bachelor's degree in computer science, electrical engineering, or a related field

Job Responsibilities

• Design and develop Android mobile applications that connect to medical devices via BLE, ensuring secure and reliable data transmission.
• Collaborate with iOS developers, QA, clinical, and hardware teams to create consistent and compliant cross-platform experiences.
• Implement BLE workflows including device discovery, secure pairing, bonding, characteristic interactions, and firmware updates.
• Rapidly ramp up and contribute to iOS development (Swift/Objective-C) where required.
• Write clean, testable, and well-documented code following medical device software standards (e.g., IEC 62304). 
• Participate in architecture, risk assessment, and design reviews, especially in the context of regulated medical software.
• Support validation, verification, and regulatory submission processes by generating compliant documentation and test evidence.
• Diagnose and resolve issues related to BLE communication, device interoperability, and user-reported bugs.
• Documents software development and/or test development by writing documents, reports, memos, change requests. Methods used are determined by approved procedures and standards.
• Follow the full design life cycle process including driving efforts in requirements specification, design activities, planning, code reviews and creating corresponding artifacts.
• Analyzes, evaluates, verifies requirements, software and systems using software engineering standards and best practices
• Provide complete expert engineering solutions that are well thought out that is architecturally and technically sound

Department/Project Description

Our customer is an American manufacturer and globally recognized leader in Healthcare and Medical Devices. In close cooperation with the international team you will have the ability to participate in product feature definition, development, testing, and post-release support for innovative medical products.