Jobs at Djinni

Seeking a React Native developer to join our mission of creating mobile apps that don't suck - someone who writes clean code, loves mobile UX, and wants to build products that users actually enjoy.

Required skills:

• Proficient in TypeScript, JavaScript
• Experience with REST APIs and WebSocket.
• Familiarity with Redux or other state management solutions.
• Experience with Redux Toolkit or Redux Saga.
• Knowledge of Realm or other database systems.
• Experience with Git for version control.

Would be a plus:

• Experience in publishing mobile applications in Google Play and AppStore
• Experience with event-driven systems
• Basic knowledge of CI/CD (Fastlane/CircleCI)
• Experience with managing cloud-based (AWS, Google Cloud, Azure etc.) 

• Experience with debugging tools (Flipper, Reactotron)

   

Responsibilities:

• Design & implement a cross-platform mobile application;
• Writing clean and solid code;
• Sharing experience with a team members
• Promote good design principles such as code reuse, modularity, and extensibility.

We offer:

•  Young and friendly team
•  Fully remote work
•  Flexible schedule
•  4 calendar weeks of paid vacation
•  10 days of paid sick leave
•  Corporate events and team buildings
•  English classes

Good luck! See you in our team!

Octy

• Project Description:

  The goal of platform we build is to create an automated end-to-end solution to facilitate Exam Management Cycles for the Regulatory Authorities and assessment activities across the three lines of defense.
  This application is used to automate Document and Data retrieval. It also provides ability to view documents that are auto retrieved as well as to request documents through automatic generation of email requests.
  This solution will allow to have one workspace to work for both roles as Maker and Checker, auto retrieve of documents and data, and build automatic storage of all documents collected for an Exam/Cycle into the document storage.
  The system is targeting to shorten the timeline for source document and data collection, automates documents and structured data collection, reduce manual work and overall time spent on examination management activities.
  
  Team consists of Dev, BA, QA, Tram Lead, and is supported by dedicated DevOps group. We use agile methodologies on a team level (Scrum, Kanban).
  
  Key project technology stack: Kotlin, Java, Reactor, React, Typescript, Playwright.

• Responsibilities:

  • Automation process setup and improvement
  • Development of test automation framework architecture
  • Building and maintaining automated testing frameworks
  • Test case adjustments for automated testing needs
  • Integrating automated testing into CI processes
  • Test data and test environment preparations
  • Creating bug reports based on test execution results

• Mandatory Skills Description:

  • Automation experience using Playwright - 1+ year
  • Automation experience - 4+ years
  • Manual testing experience - 2+ years
  • Experience in testing Restful APIs - 1+years
  • Solid skills in Javascript (NodeJS/Typescript)
  • Experience in non selenium tools Cypress/puppeteer
  • Familiar with test runners like Jest or Mocha, and testing utilities like Chai, Enzyme or any other
  • Strong knowledge of test design
  • Strong experience with continuous integration processes and tools (Jenkins, Teamcity or similar)
  • Experience of working with version control systems (e.g. GIT, Bitbucket and others)
  • Strong proficiency in Atlassian Product Suite (Confluence, JIRA)
  • Understanding of agile software development methodologies
  • Ability to prioritize test cases based on risk analysis
  • HTML / CSS / JSON / XML knowledge
  • Strong analytical skills
  • Accountability and self organization

• Nice-to-Have Skills Description:

  • Strong ability to solve, manage and prevent problems independently
  • Understanding of Banking Client Onboarding domain
  • Experience with Cross-browser testing

We are a full-cycle software and app development company. Limeup specializes in creating mobile and web applications, complex websites, and scalable digital platforms.

We are currently looking for a Linkbuilder / Outreach Specialist to join our team.

Requirements:

• 1+ years of proven experience in linkbuilding / outreach;
• Experience working with international GEOs (USA, UK, DE);
• Upper-Intermediate+ English level (written and spoken);
• Experience building links through blogs, forums, Q&A platforms, etc.;
• Ability to evaluate and select high-quality donor websites;
• Familiarity with SEO fundamentals;
• Proficiency in tools such as Ahrefs, Semrush, Hunter.io (or similar);
• Experience with outreach and email marketing tools (CRM/newsletter software);
• Strong multitasking, organizational, and time-management skills;
• Ability to work independently as well as collaboratively in a team.
   

Nice to have: your own database of websites in relevant niches.

Responsibilities:

• Research and select relevant, high-quality websites for guest and sponsored posts;
• Analyze and monitor competitors’ backlink profiles;
• Communicate with webmasters and editors to arrange link placements;
• Review content before and after publication;
• Monitor link quality and indexing status;
• Maintain accurate reports of weekly activities;
• Build and update the donor site database;
• Participate in Q&A activities (e.g., Quora);
• Suggest new outreach ideas and link-building strategies;

• Continuously improve link-building methods and workflows.

   

What we offer:

• Opportunity to work with international clients on diverse projects in a professional team;
• Remote work;
• 21 paid vacation days and paid sick leave;
• Tax coverage and accounting support;
• Flexible schedule (9 a.m.–6 p.m. or 10 a.m.–7 p.m.).

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

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 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.