Jobs at Djinni

We Are:

LetsData is an AI-powered solution designed to proactively shield businesses, civil society, and governments from information operations. Our mission is to build a cutting-edge product that helps the world’s largest organizations detect information operations early, whether disinformation, synthetic identities, or other threats posed by cybercriminals, hostile states, or competitors. We are guided by our principles of excellence, collaboration, and adaptability, and we are committed to becoming a global leader in InfoOps prevention.

The Role:

As a Full Stack Engineer at LetsData, you will develop and optimize our AI-driven platform, focusing on user-centric interfaces for both internal analytics teams and clients. Your work will help deliver innovative solutions powered by AI, data analytics, and cloud technologies to combat disinformation and protect organizations globally.

Format: Full-time

Location: Kyiv, Ukraine (hybrid-remote)

LetsData's main hubs are in Kyiv, Lviv, and New York, and we operate as a remote-first team. For this role, we're looking for someone based in Kyiv to join our full-stack team. Day-to-day work is remote, with occasional visits to our coworking space to sync, collaborate, and work in person.

Requirements:

• 1-3 years of experience as a Full Stack Engineer.
• Strong experience with frontend development using Vue.js, including knowledge of CSS.
• Proficiency in backend development using Python.
• Hands-on experience deploying and managing applications on cloud platforms, with Google Cloud Platform preferred.
• Excellent communication skills to collaborate effectively with cross-functional teams in both English and Ukrainian.
• Nice to have: Familiarity with containerization and orchestration tools like Docker.
• Nice to have: Knowledge of infrastructure as code (IaC) tools such as Terraform.
• Nice to have: Familiarity with CI/CD pipelines for automating deployments.
• A passion for making an impact by fighting malign information influences.

You Will:

• Design and develop responsive and interactive frontend interfaces using Vue.js
• Integrate frontend applications with backend services written in Python.
• Deploy and maintain applications on Google Cloud Platform.
• Collaborate with cross-functional teams to define, design, and deliver new features.
• Ensure code quality and maintainability by following industry best practices.
• Contribute to the technical design and implementation of AI-driven solutions for fighting disinformation.

We Offer:

• Unlimited vacation and additional days off on your special occasions.
• Unlimited sick leaves to take care of your health.
• Parental leave for those who stay with us for 1+ year.
• Membership at a coworking space, our Kyiv team is based in Creative States of Arsenal.
• Opportunity to participate in the top events of the industry.

LetsData is an equal-opportunity employer. We are committed to fostering a diverse and inclusive workplace where all employees feel respected and valued. We do not discriminate based on race, ethnicity, religion, belief, color, gender identity, sexual orientation, nationality, citizenship, age, marital status, veteran status, disability, legal history, or any other characteristic protected by law. 

We create solutions that put the client at the center of marketing. Marketing activities begin with an understanding of the client's needs and behavior, not with a product or campaign.

The platform brings together three key components:

rich historical, real, and forecast customer data, AI-controlled orchestration of the client's multi-channel paths, and statistically reliable assessment of the impact of each marketing action.

This allows you to create personalized, efficient, and measurable marketing that is truly customer-oriented.

Now we are looking for a Strong Middle Backend Developer to join our growing international team. In this role, you will work on data-intensive systems, building scalable backend services and contributing to modern data-driven solutions.
You will collaborate with engineers and stakeholders, working in a fully remote environment where communication, ownership, and teamwork are essential.

Responsibilities

• Design, develop, and maintain scalable backend services and APIs
• Build and maintain backend systems using C#/.NET and Type Script/Node.js
• Develop end-to-end features in a complex, data-intensive web application.
• Write clean, maintainable code with strong unit and end-to-end test coverage.
• Collaborate closely with product managers, data teams, and engineers across countries
• Contribute to improving system performance, reliability, and scalability
• Tackle advanced engineering challenges across multiple languages and environments.
• Leverage AI tools and technologies to improve development workflows and product capabilities

Requirements

• 3–5+ years of backend development experience with C# / .NET
• Working knowledge of TypeScript / Node.js (NestJS a plus)
• Solid understanding of microservices architecture
• Experience with SQL databases(MSSQL/Snowflake preferred)
• Experience building and consuming REST APIs
• B.Sc. in computer science or equivalent.

Nice to Have

• Experience with NestJS
• Experience with Angular
• Comfortable with Docker and containerized environments
• Experience with GCP, Kubernetes, CI/CD pipelines
  
  What we offer:
• 20 working days’ vacation; 
• 10 paid sick leaves;
• public holidays;
• equipment;
• accountant helps with documents.
   

Rock&Apps is looking for a Release Manager 🚀
This role is part of our company’s ongoing growth and expansion. We launch 20+ apps every quarter, which means you’ll constantly have opportunities to sharpen your skills, learn new things, and grow your career — all in a supportive environment with minimal bureaucracy.

Location: Warsaw (office / hybrid)
Format: Full-time
Level: Mid+ (We assess seniority based on the complexity and scale of the cases you've handled, not just years of experience.)

What you’ll do

- Planning release cycles and managing release schedules 

- Creating, describing, and detailing tasks in Jira; monitoring readiness of release tasks 

- Coordinating development, QA, DevOps, analytics, and product teams at all stages of the release 

- Change management: assessing risks, prioritizing tasks, and making decisions on task inclusion/exclusion 

- Organizing and overseeing deployment processes: TestFlight, App Store Connect, preparing builds, metadata, and configurations 

- Building and maintaining CI/CD processes in collaboration with DevOps 

- Incident management: analyzing root causes, initiating hotfix processes, coordinating the team to minimize downtime 

- Maintaining release documentation (release notes, checklists, release requirements) 

- Communicating with stakeholders: providing updates on release status, risks, issues, and timelines 

- Analyzing release outcomes and preparing recommendations for optimizing the release process 

- Improving internal processes: standardizing release practices and implementing control points (quality gates)

What we’re looking for

- 1.5+ years of experience in release and account management; 

- Experience in setting up and managing developer accounts and releasing mobile applications (Google Play Console, App Store Connect), content management, and ASO;

- Good knowledge of the SDLC

- Ability to work on multiple projects simultaneously 

- Ability to collect, track, and analyze large amounts of data 

- Experience with SDK configuration (e.g., Appsflyer, Facebook) 

- Experience working with anti-detect browsers and proxy services (e.g., Octo, Indigo) 

You’re a great fit if you are:

- Strong attention to detail 

- Great organization, planning, and prioritization skills 

- Strong problem-solving and critical thinking abilities 

- Adaptability in a fast-paced and changing environment

Extra points if you have

- Experience in mobile apps development projects 

- Understanding of mobile app mechanics, design patterns and guidelines 

- Experience working with trackers (e.g., Voluum, Keitaro, Binom)

What we offer

- A fast-growing environment with minimal bureaucracy 

- Support for professional development 

- 15 paid vacation days 

- 15 paid sick days 

- 5 paid days off 

- Benefit bar

Hi!

We are happy to introduce you to Softsich! We are a young, ambitious, and fast-growing company that creates innovative digital products and is confidently expanding its presence in global markets.

We are currently looking for a Data Analyst to help our teams make data-driven decisions. Your main mission will be to prepare reports, automate analytical processes, and complete ad-hoc tasks. If you enjoy working with data, are able to find patterns in it, and can turn numbers into a comprehensible story, this role is for you.

Responsibilities:

• Preparing data using SQL for further visualisation.
• Developing DAGs in Airflow (working with Python).
• Visualising data and building reports in Tableau.
• Preparing regular reports and executing ad-hoc queries for the Retention Department.
• Optimising existing data collection and processing processes.

Our ideal candidate has:

• At least 1.5-2 year of commercial experience as a Data/Business Analyst (preferred).
• Strong SQL skills (ability to write complex queries using CTEs, window functions, and joins).
• Good knowledge of Python (experience with pandas, understanding of functions, ability to write modular scripts).
• Experience working with Tableau.
• Strong sense of responsibility and proactivity.
• Fast learner with high attention to detail.

We Offer:

• A flexible schedule and remote format, or offices in Warsaw/Kyiv — you choose.
• 24 paid vacation days, sick leave, and health insurance (UA-based, other locations in progress).
• A supportive, friendly team where knowledge-sharing is part of the culture.
• Coverage for professional events and learning.
• Birthday greetings, team-building events, and a warm human connection beyond work.
• Zero joules of energy to the aggressor state, its affiliated businesses, or partners.

Join our team, where data is not just numbers, but the basis for big decisions! 

Send us your CV and start your journey to new career heights with us! 🚀

A game project in the FPS genre is looking for a 3D Animator to work on character and weapon animations. The role focuses on creating high-quality gameplay animations for both first-person and third-person perspectives and integrating them into the Unity engine.

Responsibilities:

• Create and refine first-person animations for weapons and character interactions
• Create third-person character animations for gameplay and movement
• Prepare and export animation assets for use in Unity
• Integrate and configure animations in the Unity Animator system

• Work with inverse kinematics (IK) for more realistic character movement and interactions

   

Requirements:

• Strong experience with first-person (FPS) animation
• Experience creating third-person character animations
• Confident knowledge of the Unity engine
• Experience exporting and integrating animations into Unity

• Experience working with IK systems in Unity

   

Nice to have:

• Experience working on shooter games
• Understanding of gameplay animation, weapon handling, and responsive animation feel in FPS games
• Experience working with Animancer
• Experience working with Final IK

Responsibilities

• Create content for e-mail, SMS, Push, Viber, WhatsApp;
• Write texts for promotions, tournaments, bonus programs;
• Work with lendings - description of bonuses, terms and conditions, new games;
• Prepare scripts and texts for gamification (missions, Challenges, wheels of fortune);
• Develop content strategy to engage and retain players;
• Analyze competitors and content trends in iGaming and betting;
• Work in conjunction with CRM-marketers, designers and SMM-department;
• Writing texts in Russian and Kazakh languages.

Requirements

• 2+ years experience as a content manager (preferably in gambling, betting, iGaming);
• Knowledge of the peculiarities of content for casinos and sports betting;
• Ability to write sales texts (headlines, offerers, promo descriptions);
• Experience with CMS - content creation and updating;
• Basic skills in Figma;
• Ability to write content for different channels (lendings, e-mail, Telegram, push and other).

UAPP is looking for a QA Engineer for a full-time position in the office.

Requirements:

• Good understanding of software testing theory and methodologies;
• Strong knowledge of different Testing Methods, Test Design Techniques, and Types;
• Strong test analysis, preparation, and planning skills;
• Ability to build and maintain Test Documentation and Reports;
• Familiarity with task management systems;
• Familiarity with test management tools (e.g., TestRail);
• Experience in using tools: DevTools, Postman;
• Experience in DB queries (SQL);
• Good understanding of client-server architecture;
• Strong critical thinking;
• High attentiveness to details;
• Good communication skills;

• English B1 (written and spoken)

   

We offer:

• Career and professional growth;
• Decent salary;
• Interesting projects in a professional team;
• Trainings, seminars, meetings and conferences at company expense;
• Pleasant and friendly working atmosphere.

We are looking for a Frontend Developer (Strong Junior/Middle with 2+ years of experience) for a full-time position in the office.

Requirements:

- Strong knowledge of HTML, CSS, and JavaScript
- Experience with frontend frameworks/libraries such as React, Angular, Vue.js, or similar
- Understanding of application architecture, design patterns, OOP, and functional programming principles
- Experience with responsive and cross-browser layout
- Good grasp of adaptive and mobile-first design principles
- Understanding of REST API integration
- Experience writing tests (unit and e2e) and ensuring proper test coverage
- Experience with version control systems (e.g., Git)
- Understanding of website performance optimization and security best practices
- Ability and willingness to learn new technologies
- English proficiency – B1 level or higher

Will be a plus:

- Experience with WordPress, including custom theme and plugin development    
- Experience with UI frameworks (Bootstrap, Tailwind CSS, etc.)  
- Knowledge of build tools (Webpack, Vite, etc.)  
- Understanding of SEO best practices

We offer:

- Career and professional growth;
- Decent salary;
- Interesting projects in a professional team;
- Trainings, seminars, meetings and conferences at company expense;
- Pleasant and quite working atmosphere.

We are looking for a Shopify CRO Designer to join our team on a part-time basis and help design high-performing Shopify stores for DTC brands.

You will work with our team (developers, CRO specialists, and project managers) to create conversion-focused UX/UI for Shopify e-commerce projects.

Responsibilities

• Design Shopify pages with a focus on conversion rate optimization (CRO)
• Create landing pages, product pages, and homepage layouts
• Work with premium Shopify themes and adapt sections for custom layouts
• Conduct UX research and improve user journeys
• Use AI tools to support design workflows
• Occasionally join client discussions when needed

Requirements

• Experience in UX/UI design for e-commerce
• Understanding of CRO principles and user behavior
• Experience working with Shopify themes
• Ability to design conversion-focused layouts
• English B2+ for client communication
• Ability to work independently in a part-time role

Nice to have

• Experience with Shopify premium themes
• Experience with CRO audits
• Experience with AI image generation or graphics
• Ability to support branding tasks, such as creating brand books, logos, and visual identity elements

What we offer

• Flexible part-time collaboration
• Remote work
• Communication via Slack
• Tasks managed in ClickUp
• Work on international Shopify projects

Senior Fullstack Engineer – React, NestJS, AWS

We're a growing tech startup building a customer-facing web platform and an internal AI model training platform. We're looking for a Senior Fullstack Engineer to join our engineering team and take real ownership of core systems.

This is a role for engineers — people who understand code deeply, think about architecture, and solve problems independently. Not someone who completes tasks, but someone who thinks about why they exist.

Responsibilities:

• Develop and maintain the full-stack platform (React frontend, NestJS backend, AWS infrastructure)

• Design and implement scalable backend services and APIs

• Work with Postgres RDS — design, optimize, and maintain relational data models

• Build and maintain event-driven services using SQS and microservices architecture

• Write unit and e2e tests (Vitest + Cypress) and maintain CI/CD pipelines (GitHub Actions)

• Write clean, modular code following SOLID principles

• Collaborate directly with Product to translate requirements into technical solutions

Requirements:

• Senior-level experience with React, NestJS, and TypeScript (frontend + backend)

• Hands-on experience with AWS (Lambda, EC2) and Docker

• Strong understanding of relational databases and Postgres

• Experience with microservices, event-driven architecture, and SQS

• Solid Git workflow and experience working in a team codebase

• Ability to read, understand, and improve unfamiliar code independently

• Clean code standards — SOLID, well-structured, maintainable

What We Value Most:

Independent thinking. We want engineers who trace problems to their root, understand the full flow of a system, and bring solutions — not just questions. If you read code before you Google, you'll fit right in.

Hi! We’re REZET.

We help our business partners worldwide achieve their goals by creating game-changing software that accurately corresponds to their business needs and procreative mindsets.

We’re looking for a talented, experienced Middle(+) Full Stack JavaScript developer who will join our team and help us drive towards new success stories and achievements, together!

Joining our team, you will:

• Collaborate on worldwide projects;
• Solve challenging and engaging tasks;
• Share your ideas freely, and be able to integrate them into the workflow.

Required skills:

• Experience with JavaScript ≥3 years;
• Async code callbacks, promises;
• NodeJS/MongoDB;
• Experience with React, Vue, Angular (at least one from the list);
• HTML / CSS / Flex;
• Git;
• Conversational English (B1 — B2).

Would be a plus:

• ReactNative;
• SASS / LESS / SCSS;
• AWS / Heroku / DO;
• SQL, MySQL, Postgresql;
• Docker;
• Unit testing with Jest;
• TypeScript;

Main responsibilities:

• take a proactive part in software development;
• code refactoring & optimization;
• build new and tweak existing functionality and features;
• participate in client meetings.

Required personal traits:

• High level of communication skills: clearly express your thoughts verbally and in writing. Know how to ask the right questions. Explain complex things in simple terms.
• Proactivity. Take responsibility and accountability in the area of your professional domain. Suggest ideas for improving the work process.
• Positive attitude and optimism. Believe in the positive outcome in any circumstances. Support your teammates. Be ready for changes.

We offer:

• Challenging and engaging tasks;
• Flexible work schedule;
• Competitive salary;
• Paid vacations, days off, and sick leaves;
• Medical insurance;
• Paid gym, sports, and educational activities;
• Professional growth;
• Career growth and the possibility of becoming an influential part of the projects and team.

Rezet is a team that fuses talent, innovation, and technology — feel free to share your CV and join us!

We are looking for a motivated and proactive Facebook Ads Specialist on behalf of our client. If you have hands-on experience in user acquisition for gaming products, a data-driven mindset, and the ability to independently create ad creatives using AI tools — this opportunity is a great match for you.

What You Will Be Working On

• Planning, launching, and optimizing high-performing Facebook campaigns for gaming products
• Managing full-funnel user-acquisition strategies across multiple markets
• Independently handling budgeting, bidding, scaling, and daily optimization
• Creating and iterating ad creatives using AI tools (images, videos, copy)
• Rapidly testing multiple creative concepts to identify top performers
• Building and refining audience segments using interest, behavior, and lookalike modeling
• Analyzing market trends, competitor angles, and user insights to improve performance

Responsibilities

• Tracking and analyzing campaign performance (ROAS, CTR, CVR, retention, monetization events)
• Making data-driven decisions to optimize and scale campaigns
• Continuously testing new creatives, audiences, and funnels
• Producing clear performance reports and actionable insights for ongoing improvements
• Managing budgets efficiently and identifying scaling opportunities

To Be Successful, You Need

• 1+ years of experience running Facebook Ads (gaming experience is a strong advantage)
• Ability to independently create ad creatives using AI tools (no design team support)
• Strong analytical and data-driven mindset
• Experience managing campaigns end-to-end
• Familiarity with mobile attribution and analytics tools is a plus
• Strong multi-tasking and prioritization skills
• Desire to grow within performance marketing

Benefits

• Significant opportunities for professional growth
• Knowledgeable and supportive team
• International, diverse work environment
• Ability to work with fast-growing global gaming products
• Competitive base salary + performance-based commissions

We look forward to your application!

We are looking for a motivated and enthusiastic Media Buyer Specialist on behalf of our client. If you have strong experience in eCommerce, native ads, push ads, and generic-product campaigns, excellent analytical skills, and a proven track record across multiple verticals — this role is for you.

What You Will Be Working On

• Planning and executing high-performing media buying campaigns for eCommerce and generic product offers

• Running and optimizing native and push ad campaigns

• Identifying the best traffic sources and channels to achieve performance goals

• Working with top converting offers and diverse geos

• Platforms: PropellerAds, AdMaven, PopAds (training provided if needed)

• Models: CPC & CPA

• Geo: Worldwide

Responsibilities

• Tracking and analyzing campaign performance

• Making data-driven decisions to optimize and scale campaigns

• Reporting results and insights to internal stakeholders

• Continuously testing creatives, audiences, and funnels to improve ROI

To Be Successful, You Need

• 2+ years of experience in media buying/data analytics

• Hands-on experience in eCommerce, native ads, push ads, and generic product campaigns

• Familiarity with various verticals and traffic types

• Strong analytical, data-driven, and performance-oriented mindset

• Understanding of media buying across PPC, DSPs, and display networks

• Expert-level proficiency in English

• Familiarity with Voluum or similar tracking platforms is a plus

• Strong multi-tasking and prioritization skills

• Desire to grow and develop within digital marketing

• Positive attitude and willingness to share knowledge

• Basic understanding of broader online marketing concepts (PPC, SEO, email marketing, etc.)

Benefits

• Significant growth opportunities

• Knowledgeable, experienced, and fun team

• International and diverse work atmosphere

• Be part of a rapidly growing global company

• Paid vacation and sick leave

• Competitive base salary + performance bonus system

We look forward to your application!

We are an ambitious iGaming holding running 8 successful products across Tier 1–3 markets and actively expanding its global footprint.

We’re currently looking for a Senior In-App Media Buyer (Team Lead) to help us scale In-App acquisition across Android & iOS.

In this role, you’ll be responsible for launching, optimizing, and scaling In-App campaigns and leading a team of buyers from day one. If you’re performance-driven, love testing hypotheses, and want real impact in a fast-paced iGaming environment — we’d love to talk.

What we expect:

• 1+ year of hands-on In-App buying experience
• Strong expertise with Moloco (Android/iOS) — must-have
• Experience with additional In-App sources is a big plus: Unity / AppLovin / Mintegral / IronSource / TikTok, etc.
• Proven ability to drive performance beyond installs/registrations — focus on deposits
• Understanding of core metrics: CPI / CPA / CPR / ROI / OAS / EPC
• Experience working with Tier 1 / Tier 2 / Tier 3 GEOs
• Confident work with trackers: Keitaro (or similar)
• Strong testing & scaling skills (hypotheses, bundles, systematic optimization — not random launches)
• Team Lead mindset: ability to guide and manage buyers (task setting, reviews, support)

• English level: Intermediate+ (for vendor/partner communication when needed)

   

Your future tasks:

• Launch and scale In-App campaigns for gambling offers (in-house products and arbitrage)
• Test GEOs, creatives, and approaches (e.g., slots / crash)
• Analyze performance and optimize campaigns with a focus on ROI and deposit quality
• Find and test new In-App sources and opportunities
• Maintain reporting and performance tracking
• Lead buyers: help them execute, improve results, and scale what works

• Work closely with creatives/design, integrations/tech, and operations/finance to move fast

   

Why join us:

• Remote work: Monday–Friday, 10:00 AM – 7:00 PM (UTC+2)
• Competitive salary — your contribution will be well rewarded
• Paid sick leave and vacation + a day off on your birthday
• Internal company events — knowledge exchange and growth
• No micromanagement or rigid hierarchies — quick decisions and direct communication
• Real scaling potential: multiple products, new GEO launches, and room to grow inside the holding

• Fast-paced environment (In-App = dynamic market) — great fit for people who like speed and ownership

   

🚀 Join the best!

Responsibilities:

- Analyze and improve user scenarios (sign-up, onboarding, upgrade, payment, retention)
- Create wireframes, prototypes, and final mockups for web and mobile product versions
- Establish and maintain a unified design system (components, tokens, styles, responsiveness)
- Work with analytics (Hotjar, GA4, Mixpanel) to identify UX bottlenecks
- Collaborate with frontend developers during mockup implementation
- Participate in feature release planning, implement UX improvements and new flows
- Adhere to brand guidelines, information hierarchy logic, and accessibility standards
- Create promo pages, payment screens, upsells, and monetization elements

Requirements:
- 1+ years of experience in UI/UX design for SaaS or B2B/B2C products (igaming is a must)
- Strong portfolio with examples of interfaces, user funnels, subscription flows
- Proficient in Figma (auto-layout, variants, components, design system)
- Understanding of UX research principles, usability testing, user journey mapping
- Experience with responsive design, understanding of frontend constraints (basic HTML/CSS/JS)
- Knowledge of behavioral economics patterns: CTA, upsell, cross-sell, trust elements
- Ability to think product-oriented: not just design beautifully, but increase value for users
- Strong communication with dev team, rapid prototyping, attention to detail

Personal characteristics:

- Creative

- Team collaboration 

- Attention to detail 

- Time management

- Strong visual thinking

- Problem-solving mindset

- Good communication skills

- Openness to feedback

- Adaptability to trends and new tools