Jobs at Djinni

We are looking for a User Acquisition Manager (In-app Networks). This is an opportunity to take ownership of one of the user acquisition channels for one of our flagship, fast-growing products. You will be responsible for launching and scaling campaigns across leading in-app advertising networks, running your own experiments, and shaping the channel's growth strategy. This role is for someone who wants to do more than just manage campaigns—it’s about influencing the direction of the channel, making data-driven decisions, and seeing the direct impact of your work.

You will join a strong User Acquisition team with well-established processes, deep domain expertise, and a collaborative knowledge-sharing culture. You'll work closely with experienced creative marketers, analysts, and designers to rapidly validate hypotheses, identify winning approaches, and scale successful strategies. We give our team the freedom to experiment and grow what works, without artificial limitations on budgets or technical capabilities, so you'll have everything you need to maximize your impact

About the product: We are building one of the most powerful live-streaming platforms, already connecting 400K+ monthly active users through live events, interactive video chats, and real-time community experiences. Our mission is bold: bring joy, fight loneliness, and deliver safe, ad-free entertainment that keeps people coming back. This is a complex, fast-moving space, and we love it that way! So, you will join a passionate, expert team tackling everything from scaling AI-powered recommendations to launching high-impact, data-driven features that boost monetization and engagement. Every idea counts here, and every release reaches a massive global audience. We are now expanding into Arab countries and Europe, enhancing content quality, and rolling out new features to keep users hooked. We are among the Top 5 streaming products in the US and rank in the Top 10 worldwide. Our next milestone: break into the global Top 5, and we are moving fast to make it happen. Are you in?

In this role, you will

• Launch and manage advertising campaigns across ad networks (AppLovin, Moloco, Mintegral, Unity Ads, etc), where we operate as an official partner
• Monitor and optimize campaigns daily against key metrics (CPA, CPI, IPM, ROAS, Retention)
• Own your channel strategy end-to-end: design your own testing structure for creatives, audiences, and bidding strategies, focused primarily on Tier-1 markets (US, Western Europe)
• Maintain campaign reporting and prepare regular performance reports
• Communicate directly with network account managers on launches, optimization, creative moderation, and technical issues
• Collaborate with the Creative team to request and provide feedback on creatives
• Report on results in team syncs and drive your own experiments with real ownership of outcomes

It’s all about you

• 1+ years of hands-on experience in performance marketing for mobile apps, personally launching and managing campaigns (not only through a managed-service setup)
• Practical, hands-on experience with at least one of the networks: AppLovin, Moloco, Mintegral, Unity Ads, at a meaningful spend level (not just small test launches)
• Experience working with monthly budgets from $100,000
• Understanding of programmatic/ad network buying principles (bidding, auctions, optimization events)
• Solid grasp of core performance metrics (CPA, CPI, CTR, CR, ROAS, IPM, LTV)
• Confident with Excel/Google Sheets for data work
• English at Intermediate (B1+) level for working with network interfaces and communicating with account managers
• Attention to detail and discipline in reporting and campaign structure

Would be a plus

• Basic SQL knowledge or experience with BI tools (Tableau, AppsFlyer)
• Understanding of MMP tools (AppsFlyer/Adjust) and attribution principles
• Interest in automating routine processes (reporting, monitoring) using AI tools

What we offer

Care and support: 

• 20 paid vacation days, 15 sick days, and 6 additional days off for family events
• Up to 10 additional days off for public holidays
• 100% medical insurance coverage
• Sports and equipment reimbursement
• Team building events, corporate gifts, and stylish merch
• Financial and legal support
• Maternity Recovery Support Allowance
• Position retention and support for those who join the Armed Forces of Ukraine
• Participation in social initiatives supporting Ukraine
   

Comfortable working environment:

• Work from our Kyiv hub or remotely with a flexible schedule 
• Modern equipment or depreciation of your own tools
   

Investment in your future:

• Collaborate with a highly-skilled team of Middle & Senior professionals, sharing practical cases and expertise in the social networking niche
• 70% of our heads and leads have grown into their roles here – so can you!
• Performance-oriented reviews and Individual Development Plans (IDPs)
• Reimbursement for professional courses and English classes
• Corporate library, book club, and knowledge-sharing events
   

Hiring process

• Intro call
• Technical interview
• Interview with Hiring Manager
• Bar raiser interview
• Reference check
• Offer

Position overview

We're looking for a Senior Windows Drivers Engineer to join our Endpoint team and help build and enhance the core technology behind Cybereason's Windows agent. In this role, you'll design and implement low-level Windows components, including Windows kernel drivers and user-mode services, that power advanced threat detection and response capabilities. You'll work closely with security researchers, sensor developers, and platform engineers to ensure our agent is stable, stealthy, and performant across all supported environments.

This role demands strong C++ expertise, deep knowledge of Windows OS internals, KMDF (Kernel-Mode Driver Framework), and a passion for building secure, high-impact software.

Responsibilities

• Design and develop low-level components for the Windows endpoint sensor, focusing on stability, performance, and stealth.
• Build kernel-mode drivers and user-mode services that collect, filter, and analyze endpoint telemetry.
• Implement robust techniques for process/thread monitoring, registry tracking, file system interception, and network event visibility.
• Debug complex kernel-mode and user-mode issues across multiple Windows versions.
• Collaborate with researchers and product teams to translate threat intelligence into product features.
• Conduct code reviews, mentor engineers, and contribute to architectural decisions.
• Stay current with Windows internals, security trends, and system programming best practices.

Requirements

• 5+ years of hands-on experience in C++ development (C++11 or later).
• In-depth understanding of Windows internals, including kernel architecture, system calls, memory management, and drivers.
• Proven experience developing Windows kernel drivers using KMDF, Windows Filtering Platform (WFP), minifilters, and ETW.
• Strong debugging and reverse engineering skills using tools such as WinDbg, Process Monitor, Process Explorer, IDA, or Ghidra.
• Familiarity with Windows security mechanisms, including integrity levels, UAC, AppLocker, and Secure Boot.
• Experience using Visual Studio, Windows Driver Kit (WDK), and related development environments.

Nice to have

• Experience building or contributing to endpoint security products (EDR, AV, EPP, etc.).
• Familiarity with Windows telemetry, Event Logs, Sysmon, and ETW tracing.
• Experience with malware analysis, Windows exploitation techniques, or SOC/DFIR workflows.
• Experience in the cybersecurity domain is a plus.
• Scripting skills in PowerShell or Python for automation and testing.
• Understanding of kernel-mode security evasion techniques and defensive mechanisms.
• Experience with code signing, driver deployment, and secure update mechanisms.
• Bachelor's degree in Computer Science, Software Engineering, or equivalent practical experience.

Description:
 

Reyo Media Cyprus develops high-performance web products, marketing websites, and browser-based games. We are looking for an experienced Senior QA Automation Engineer to help establish and scale our quality assurance and automation practices across multiple project types.

This is a hands-on, part-time role for someone who enjoys building QA processes from the ground up, selecting the right tools, and creating automation strategies that improve product quality and development efficiency.

Requirements:
 

• 4+ years of experience in Software Quality Assurance, including significant automation experience.
• Proven experience building QA processes and automation frameworks from scratch.
• Strong hands-on experience with modern test automation tools such as Playwright, Cypress, Selenium, or similar.
• Experience testing modern web applications and websites.
• Solid understanding of software testing methodologies, QA best practices, and SDLC.
• Experience designing test plans, test cases, checklists, and bug reports.
• Good understanding of client-server architecture, APIs, and browser technologies.
• Experience working with Git and CI/CD pipelines.
• Strong analytical and problem-solving skills.

Responsibilities:
 

• Design and implement the company's QA automation strategy and processes.
• Evaluate, select, and establish automation frameworks and testing tools.
• Build and maintain automated end-to-end, functional, and regression test suites.
• Create testing standards, quality gates, and release validation processes.
• Develop automation solutions for web applications, websites, and Unity WebGL games.
• Perform exploratory and manual testing when necessary.
• Identify, document, prioritize, and verify software defects.
• Collaborate closely with developers, designers, and project managers to ensure product quality throughout the development lifecycle.
• Integrate automated testing into CI/CD pipelines.
• Monitor test results and continuously improve test coverage and reliability.
• Provide guidance and best practices for quality assurance across the team.

You will work across a variety of products, including:

• React.js Single Page Applications (SPAs) and landing pages
• WordPress websites
• Unity WebGL games

Nice to have:
 

• Experience testing Unity WebGL games or browser-based games.
• Familiarity with performance, load, and security testing.
• Experience with WordPress website testing.
• Knowledge of accessibility testing standards.
• Experience with GitHub Actions, GitLab CI, Jenkins, or similar CI/CD platforms.

Working conditions:
 

• Flexible part-time engagement.
• Remote-friendly work environment.
• Opportunity to shape and own the QA automation strategy across multiple products.
• Work on a diverse portfolio of web applications, websites, and browser-based games.
• Direct collaboration with a highly technical and product-focused team.

If you are passionate about crypto market trends, the Social Media Marketing Manager role is a part of a project specializing in the cryptocurrency area. You’ll join a Marketing department team of 10+ people.

Key Responsibilities:

• Market & Competitive Intelligence: Continuously analyze market trends and competitors (crypto, blockchain, finance, IT), identifying opportunities for timely and engaging content.

• Content Execution and Publication: Generate content ideas, develop new content formats, and create viral and trend-driven posts — from planning to publishing and distribution.

• Social Activations & Partnerships: Lead social campaigns (giveaways, AMAs) and manage collaborations with communities, influencers, and KOLs.

• Cross-Platform SMM: Own the growth, engagement, and content distribution across key social channels, including X (Twitter), Telegram, Reddit, and LinkedIn.

• Reddit Community Management: Manage Reddit communities by participating in discussions, developing native content, and growing engagement through both existing and newly established accounts.

• Performance & Optimization: Own SMM metrics and reporting, continuously optimizing strategies based on data and performance insights.

Requirements:

• Experience: At least 3 years of experience as an SMM. 

• Social Media Experience: Proven track record with Twitter, Telegram, Reddit, and LinkedIn.

• Domain: +1 years in blockchain or cryptocurrency products.

• Community management engagement: Proven skills in building and maintaining engaged social media communities.

• Languages: English proficiency (Upper-Intermediate or higher).

• Soft skills: ability to multitask effectively, making swift and responsible decisions.

Nice to have: 

• Social Media Channels: Experience with social platforms such as Discord, YouTube, Binance Square, CMC Community, and other Web3-oriented networks;

• Technical skills: Basic skills in video editing or motion design.

Conditions and benefits:

• Remote-friendly culture: Work from anywhere in the world with a flexible schedule in CET timezone.

• Opportunities for growth: Take advantage of paid training, English-speaking clubs, support for certifications, and participation in professional events.

• Reliable conditions: Transparent terms, stable compensation, and consistent support.

• Room for ideas: We work in teams with full autonomy, empowered by our clients to take complete ownership of our projects.

RedCore is an international business group that creates technological solutions for digital markets. Our products and services cover fintech, marketing, e-commerce, customer service, communications, and regulatory technologies. 

We are looking for a Marketing Project Manager to join our team!

Requirements:

- At least 2 years of experience as a project manager Knowledge of SDLC and project management methodologies (Scrum, Scrumban, Waterfall);
- Basic understanding of marketing processes;
- Proficient user of Atlassian tools (Jira, Confluence);
- Experience in requirements analysis, resource estimation, project planning, risk, and change management;
- Excellent communication skills and ability to resolve conflicts and negotiate;
- Ability to take responsibility and make quick decisions;
- Ability to work in a multitasking environment;
- English language proficiency not lower than Upper-Intermediate.

Responsibilities:

- Oversee the implementation of tasks and delegate responsibilities across the department;
- Assume responsibility for ensuring tasks are completed promptly within the specified domain;
- Evaluate the results of tasks to verify their efficacy;
- Serve as a bridge between various team members;
- Improve procedures to maximize team productivity;
- Foster cooperation and interaction with other teams within the department and broader group of companies.

What are the conditions and bonuses?

☘️An exciting and challenging job in a fast-growing product company, the opportunity to be part of a multicultural team of top professionals in Development, Architecture, Management, Operations, Marketing, Legal, Finance and other;

🤝🏻Great working atmosphere with passionate experts and leaders, sharing a friendly culture and a success-driven mindset is guaranteed;

📍Beautiful offices in Warsaw, Limassol work remotely or on-site with comfort and enjoy the opportunity to build a network of connections with professionals day by day;

🧑🏻‍💻Laptop & all necessary equipment for work according to the ecosystem standards;

🏖Paid vacations, personal events days, days off;

🫖Paid sick leave;

👨🏻‍⚕️Medical insurance;

💵Referral program enjoy cooperation with your colleagues and get the bonus;

📚Educational support by our L&D team: internal and external trainings and conferences, courses on Udemy;

🧘Sport benefit;

🦄Multiple internal activities: online platform for employees with quests, gamification and presents for collecting bonuses, RedCore talks club for movie and book lovers, board games cozy evenings, special office days dedicated to holidays;

🎳Company events, team buildings.

We’re looking for a Product Data Analyst who can transform data into clear product direction in a fast-scaling environment. In this role, you’ll help shape how Zeely grows across user flows, experiments, and core product decisions — uncovering insights, identifying bottlenecks, and enabling smarter, data-driven decisions at every step.

Zeely AI is an all-in-one AI marketing platform that helps small businesses and marketing teams grow faster and achieve their goals through high-performing content and automation. Our platform enables users to create ad creatives, UGC videos, viral content, banners, and more, as well as launch effective paid and organic campaigns across Meta channels.

In simple terms, we’ve made world-class AI marketing tools and solutions accessible to businesses that previously could only get this level of support from large brands with expensive marketing teams.

A few things that define where we are today:

• 4 years on the market — a stable, profitable company backed by top international investors;
• 4x growth over the past year;
• 1,500,000+ businesses already use Zeely, and that number keeps growing every day;
• Top 1 in our category in the US market;
• 200+ specialists on the team;
• US-focused, with a global user base.

Your challenges:

• Uncover patterns in user behavior and product engagement;
• Evaluate acquisition and activation funnels;
• Turn data into product insights and growth hypotheses;
• Build decision-support dashboards (e.g., in Tableau);
• Run and analyze A/B tests with product teams;
• Establish strong analytics practices across the company.

You’re a match if you have:

• 3+ years in Data/Product Analytics;
• Solid SQL skills & experience with relational databases;
• Proficiency with Tableau, Looker, Power BI, or similar;
• Good grasp of statistics and experimentation (A/B tests);
• Understanding of product/growth metrics and LTV modeling;
• Intermediate+ English.

Bonus points for:

• Experience with pandas/numpy;
• Working knowledge of ETL processes or dbt.

Why It’s Exciting to Work With Us:

• Build AI-powered tools with real impact, helping over one million small businesses grow, compete, and launch ads without agencies or complex marketing setups.
• Join a strong A-level team of experienced professionals who set a high bar and push each other to do better work.
• Remote-first approach: work from anywhere, with access to our offices in Warsaw and Kyiv.
• We take care of the essentials. Paid time off, sick leaves, and financial support with private entrepreneurship matters.
• Regular performance reviews to ensure your growth is transparent and rewarded.

Process:

Recruiter Call → Hiring Manager Interview → Test Task → Team Interview → Reference check → Offer.

Ready to join one of the fastest-growing AI startups in Eastern Europe?

Let’s talk.