Jobs at Djinni

🔹Who we are!

At Levi9, we are passionate about what we do. We love our work and together in a team, we are smarter and stronger. We are looking for skilled team players who make change happen. Are you one of these players?

🔹About the role

As a Data Streaming Engineer in the customer team, you will leverage millions of daily connections with readers and viewers across the online platforms as a competitive advantage to deliver reliable, scalable streaming solutions. You will collaborate closely with analysts, data scientists and developers across all departments throughout the entire customer organisation. You will design and build cloud-based data pipelines, both batch and streaming, and its underlying infrastructure. In short: you live up to our principle You Build It, You Run It.

You will be working closely with a tech stack that includes Scala, Kafka, Kubernetes, Kafka Streams, and Snowflake.

🔹Responsibilities

• Deliver reliable, scalable streaming solutions
• Collaborate closely with analysts, data scientists and developers across all departments throughout the entire organisation
• Design and build cloud-based data pipelines, both batch and streaming, and its underlying infrastructure
• You Build It, You Run It.
• Building a robust real-time customer profile by aggregating their online behaviour and allowing the usage of this profile to recommend other articles on our online platforms.
• Co-develop and cooperate on streaming architectures from inception and design, through deployment, operation and refinement to meet the needs of millions of real-time interactions.
• Closely collaborate with business stakeholders, data scientists and analysts in our daily work, data engineering guild and communities of practice.

• You are a protagonist in harmonising our data landscape across countries, over departments and through acquisitions

   

🔹Requirements

• Experience implementing highly available and scalable big data solutions
• In-depth knowledge of at least one cloud provider, preferably AWS
• Proficiency in languages such as Scala, Python, or shell scripting, specifically in the context of streaming data workflows
• Experience with Infrastructure as Code and CI/CD pipelines
• Full understanding of modern software engineering best practices
• Experience with Domain-driven design
• DevOps mindset
• You see the value in a team and enjoy working together with others, also with techniques like pair programming

• You either have an AWS certification or are willing to achieve AWS certification within 6 months (minimum: AWS Certified Associate)

   

🔹Interview stages

• HR interview
• Technical interview in English
• Test assignment

• Final interview

   

🔹9 reasons to join us:

1. Today we’re working with the technology of tomorrow.
2. We don’t wait for a change. We are the change.
3. We’re experts in creating experts (Levi9 academy, Lead9 program for leaders).
4. No micromanagement. We are free birds with a clear understanding of what the high performance is!
5. Learning in Levi9 never stops (unlimited Udemy for business, meetups, English&German courses, Professional trainings).
6. Here you can train your body and mind.
7. We’ve gathered the best locations — comfortable, cozy and pet-friendly offices in Kyiv (5 minutes from Olimpiyska metro station) and Lviv (overlooking the Stryiskyi Park) with regular offline internal events
8. We have master’s degree in work-life balance.
9. We are actively supporting Ukraine with constant donations and volunteering

Job Description:
We are seeking a detail-oriented and methodical Manual QA Tester to join our team. In this role, you will be responsible for validating the functionality, reliability, and usability of our web applications through rigorous manual testing. You will work closely with developers, product managers, and designers to ensure that our releases meet high-quality standards.

Responsibilities:

• Create, execute, and maintain comprehensive test cases and test plans based on product requirements and specifications
• Identify, document, and track bugs using issue tracking tools (e.g., Jira)
• Perform functional, regression, integration, and UI testing across various browsers and devices
• Collaborate with development teams to clarify requirements and resolve defects
• Provide clear and detailed feedback to stakeholders regarding test coverage, defects, and product quality

Nice to Haves:

• Experience writing automated test scripts using Playwright or similar tools
• Ability to write and run SQL queries for backend validation and data integrity checks
• Familiarity with modern JavaScript frameworks such as Angular or Next.js to support front-end validation and developer collaboration

Requirements:

• 1–3 years of experience in manual QA testing for web-based applications
• Strong understanding of QA methodologies, tools, and processes
• Excellent analytical and problem-solving skills
• Strong verbal and written communication skills

• Project Description:

  Integrated Digital Expert system is a monitoring and diagnostics system. It fulfils both local and remote data access and analytics requirement, as well as local and remote troubleshooting purpose.

   

• Mandatory Skills Description:
  • At least 4 years of creating and executing test cases
  • Working knowledge of functional and non-functional software testing, the software test life cycle, and various test design methodologies (function, performance, accessibility, scenario etc.).
  • Test cases creation and execution based on Customer and Software requirements
  • Python 3+ years of experience
  • Experience of setting up testing framework from scratch
  • Experience in testing of Backend (API) and data quality
  • Knowledge of API testing tooling like Postman, Swagger
  • DBs basics and SQL database usage expert
  • Commercial experience in IoT
  • Commercial experience with Time series data
  • Linux knowledge
  • Experience with the AWS services ecosystem (including EC2, IAM, and the AWS Management Console)
  • CI/CD (Jenkins)
  • Experience with Performance testing
  • Good soft skills in communication.
  • Exemplary verbal and written communication skills (English).
  • Creative problem-solver capable of creating and reproducing interesting software bugs.

Hey!
We are looking for CTO who will own the architecture, engineering strategy, delivery, and evolution of a complex, high-throughput gaming platform.
This role combines hands-on technical excellence with senior leadership and C-level decision-making.
 

Our client is a fast-growing international gaming company developing mobile games and building a large-scale platform that unifies all their products into a single live ecosystem.

Requirements

Must-Have

• 8+ years of engineering experience, including 4+ years in senior leadership (Head of Engineering / VP Eng / CTO).
• Experience 4–5+ years in iGaiming
• Proven experience building large-scale interactive platforms or live game systems.
• Deep expertise in backend microservices, event streaming, and real-time platforms.
• Strong client/mobile engineering understanding (Node.js, Pixi.js – a plus).
• Hands-on experience with cloud platforms (GCP/AWS), CI/CD, observability, scalable DB/caching design.
• Experience in regulated gaming ecosystems, operator integrations, RNG/compliance.
• Excellent communication skills.
   

Nice-to-Have

• Experience with: GKE, Terraform, TypeScript/Node.js, TypeORM, React, PostgreSQL, Redis, Prometheus.
• Background in loyalty/engagement or gamified social systems.
• Wallet/crypto integration experience.

Experience shipping both client and server components of slot/casino games.


Success Metrics (First 12 Months)

• Launch of a production-ready MVP platform integrated with 3–5 live games and at least 1 operator.
• Achieving stable SLAs for uptime, latency, and error budgets.
• Reducing operator onboarding time to defined targets (days, not weeks).

Improving internal engineering velocity by 2–3× through process optimization and automation.

Key Responsibilities

Strategic & Leadership

• Define and own the technology vision and platform strategy.
• Build and scale a high-performance engineering organization (hiring, KPIs, processes, culture).
• Collaborate closely with executive leadership to translate business goals into actionable technical roadmaps.
• Manage external vendors and technology partners (including platform integrators).

Architecture & Engineering Delivery

• Architect the platform: microservices, event-driven components, reward engines, matchmaking, leaderboards, telemetry, caching, queues.
• Build the integration model for operators and aggregators: SDKs, RGS, Wallet Adapters, secure APIs.
• Oversee backend and client engineering for high-performance, mobile-first game systems.
• Define standards for CI/CD, automated testing, observability, and release governance.

Product & LiveOps

• Implement missions, events, progression, loyalty systems, currencies, demo/real play weighting, and other platform mechanics.
• Ensure system security, anti-fraud protection, and regulatory compliance.
• Build full LiveOps capabilities: analytics, A/B testing, dashboards, experiment frameworks, and rapid incident response.

People, Culture & Security

• Introduce secure development practices and data protection standards.
• Define engineering processes, release cadences, and quality guidelines.
• Mentor senior engineers and foster a culture of ownership, craftsmanship, and delivery excellence.
  
  Hiring Process
• Recruiter call 
• Technical interview 
• Interview with the client’s CFO
• Interview with the client’s CEO

Technical deep-dive with CTO of a partner technology provider

🚀 Join us!

TGA Digital is looking for an experienced developer with a main focus on Python, to be a part of a fintech startup.

Technical requirements:

• 5+ years of commercial experience 
• Commercial experience with Django 3.2
• Good knowledge of Django Rest Framework 3.12
• Data analysis and manipulation in the Pandas library (Python)
• Experience with Celery
• Experience with PostgreSQL
• Fintech experience
• Performance tuning experience
• Upper-Intermediate English

Good to have:

• Experience with  Vue.js
• Experience using Typescript
• Experience with Docker

• Experience with AI technologies

   

Main responsibilities/tasks:

• Analysis and development of a fintech product
• Performance optimization
• New features development
• Integration with 3rd party services.

We offer:

• Flexible schedule
• 20 days of paid vacation
• Up to 10 days of sick-leave
• Laptop purchase support program
• Power equipment purchase support program
• Home office equipment program
• Courses and trainings expenses coverage

Stellar Jet — is an innovative R&D bureau and experimental manufacturing company. We collaborate with leading Ukrainian and international companies to create exceptional technological solutions.

We are seeking a skilled GNC Engineer with a solid understanding of data structures and algorithms, and a passion for working on cutting-edge technologies in the defense sector.

Key Responsibilities:

—  Development and implementation of control algorithms using C/C++;

— Modeling of object dynamics using Ardupilot, JSBSim, and FlightGear environments;

— Analysis of the characteristics of simulated objects and evaluation of control system performance;

— Calculation of control coefficients and assessment of quality indicators;

— Optimization of stabilization and guidance algorithms in accordance with technical requirements and flight conditions.

Candidate Requirements:

— Higher technical education (Aerospace Engineering, Mechatronics, Automatic Control Systems, or Applied Mathematics);

— Practical skills in C/C++, MATLAB, and Simulink;

— Experience with JSBSim and FlightGear tools;

— Experience working with aerial vehicles (unmanned, rocket, or aviation systems);

— Understanding of flight dynamics and basic principles of aerodynamics;

— Knowledge of automatic control theory;

— Experience working in a Linux environment.

What We Offer:
— Official employment via Дія Сіті and paid vacation;
— Comprehensive sick leave compensation;
— Military deferment and full support throughout the documentation process;
— Spacious office next to the metro (right shore);
— Gym, yoga studio, massage room and cafe;
— Career development system with clear skill qualifications;
— Competitive salary with regular performance-based reviews;
— Involvement in large-scale defense tech projects of national importance.

We are looking for a communicative and proactive Account Manager to help maintain and develop relationships with the company’s clients.
The main goal is to retain and grow the client portfolio, increase customer satisfaction, and identify opportunities for upselling and expanding cooperation.

You will work with existing accounts together with Project Managers and company leadership to ensure high-quality service, consistent communication, and long-term client relationships.
 

Your main responsibilities:

• Support clients and help them develop their projects.
• Identify new opportunities for upsell / cross-sell and business expansion.
• Monitor customer satisfaction, collect feedback, and initiate improvements.
• Track contract deadlines and proactively initiate renewals.
• Facilitate communication between clients and internal teams, helping to resolve issues quickly.
• Conduct onboarding for new clients and guide them through the first stages of cooperation.
• Build trusting, long-term relationships with clients.
• Maintain a positive company image, collect testimonials and referrals.
   

What will help you succeed:

• 3+ years of experience as an Account Manager or Customer Success Manager.
• Experience working with international B2B clients in IT.
• Ability to identify and effectively leverage upsell and cross-sell opportunities.
• Strong relationship-building skills and ability to grow client partnerships.
• Ability to explain technical concepts to non-technical clients.
• Excellent communication, presentation, and conflict resolution skills.
• Strong organizational skills, responsibility, and a results-oriented mindset.
• Understanding of the software development process.
• English level: Upper-Intermediate or higher.
   

Will be a plus:

• Experience managing a team or handling large accounts.

Our benefits:

• Flexible schedule with the ability to work remotely.
• Optimal social package.
• Full financial and legal support.
• Paid vacation and sick leaves.
• Professional and Personal Growth.
• Work with a team of professionals, C-level and the latest technologies.
• Individual development plan.

• Mentorship and guidance.

   

Hiring process:

• Іntro call with a recruiter.
• Interview with HRD.
• Interview with CEO.
• Оffer.

Overview

Our partner is a startup focused on algorithmic trading, developing innovative trading strategies grounded in real data.

We are looking to Quant Analyst to bridge the gap between raw market data and actionable trading strategies. You will be responsible for analyzing financial datasets, testing hypotheses, and working closely with the Mathematician and Developers to design strategies that adapt to dynamic market conditions. Your insights will directly drive the evolution of our trading algorithms

Main Responsibilities

– Research, design, and test algorithmic trading strategies using historical and real-time data
– Perform quantitative analysis on market microstructure, price movements, and asset correlations
– Collaborate with the Mathematician to apply models to real-world trading scenarios
– Work with developers to implement and backtest strategies
– Develop performance metrics and monitor live trading strategies
– Continuously refine strategies based on new data and market conditions.

Mandatory Requirements

Education and Experience:

– Bachelor’s/Master’s degree in Quantitative Finance, Economics, Mathematics, Statistics, or a related field
– Prior experience in trading research, risk modeling, or financial data analysis is preferred.

Required Skills and Qualifications:

– Solid knowledge of financial markets, trading concepts, and asset classes
– Strong quantitative skills with a background in statistics, econometrics, or applied mathematics
– Proficiency in Python or R for data analysis and backtesting
– Experience with financial data sources (Bloomberg, Quandl, APIs, etc.)
– Ability to generate insights from large, noisy datasets
– Strong communication skills to present results clearly to both technical and non-technical stakeholders
– Fluency in English is required.

We offer

– Flexible working hours
– A team of senior professionals with a proven track record
– Freedom to take initiative and bring new ideas to production
– Flat hierarchy – direct access to the CEO, CTO, and decision-makers
– Cutting-edge challenges at the intersection of markets and technology
– Potential for equity/profit-sharing.

Responsibilities

• Development and implementation of the SMM strategy;
• Planning, creation, and publishing of content
• Launch of promo campaigns, giveaways, and integrations;
• Analysis of performance and continuous optimization;
• Community management (if required);
• Coordination with designers, creatives, and media buyers.

Requirements

• 2+ years of experience in SMM: strategy, content, promotion;
• Successful cases in Instagram, Telegram, TikTok and other platforms;
• Ability to write and edit texts for posts;
• Experience managing content calendars, rubrics, and activations;
• Proficient in analytics;
• Experience working with designers and copywriters;
• Experience in gambling/betting/crypto/binary options/trading.

Looking for a fun and challenging role in a growing Shopify agency? Then you're in luck, because we're on the hunt for a long term developers to join our team!

We're a Shopify agency that specializes in helping our clients turn their one-of-a-kind designs into reality. Our team of developers is already super busy, which is why we need more of you to help us keep up with the demand.

As a member of our team, you'll be working closely with our design department to create custom webshops that help our clients' e-commerce brands grow online. We also use A/B testing to ensure that our clients' businesses are always moving forward.

Requirements:

- Strong experience in Shopify development

- Expertise in HTML, CSS, JavaScript, and Liquid

- Ability to work with third-party apps and integrations

- Communication skills and the ability to work in a team

- Ambitious goals, daring to make the best out of every project.

We can't wait to hear from you!

Junior Tester (Web Automation)
With experience in working with proxies and anti-detect browsers

🎯 Core Conditions

• 📅 Format: full-time (8 hours/day, 5 days/week)
• 🕒 Schedule: flexible, with the ability to plan your working hours
• 💰 Rate: $4/hour (≈ $700/month)
• 🚀 Increase: after 2 months to $5/hour with successful performance
• ⏳ Probation period: 2 months

🛠 Responsibilities

• Work with anti-detect browsers: profile creation and setup, proxy configuration.
• Testing web scenarios: checking website functionality under various conditions.
• Data management: maintaining reports and data in Google Sheets/Excel.
• Collaboration: prompt communication with a developer and timely task completion.

✅ Mandatory Requirements

• Technical mindset and logical thinking.
• Hands-on experience with anti-detect browsers (profile setup, fingerprint management).
• Practical skills in working with proxies (types, configuration, connection troubleshooting).
• Confident user of Google Sheets/Excel (formulas, filters, basic reporting).
• Fluent in Ukrainian or Russian.
• Attention to detail and a systematic approach to tasks.
• Self-organization, responsibility, and excellent time management.

🌟 Preferred Qualifications

• Experience in testing, analytics, or technical support.
• Fast learning ability and technical literacy.

💼 We Offer

• Remote work with a flexible schedule.
• Stable workload and timely payments.
• Opportunities for professional growth.
• Close collaboration in a pair with an experienced developer.

We provide training from scratch, and in the future a higher position within the company hierarchy and more weekly hours may be possible.

The position involves working from 12:00 to 20:00 Kyiv time (Weekends Only 16 hours week). Remote work.

Responsibilities:

Creating letters in English, using a template with the help of ChatGPT.
Searching for potential projects for our company.
Keeping track of the number of letters sent, time spent, etc...
 

Requirements:

English language level B1.
Strong interpersonal and relationship-building skills.
Ability to work independently and in a team in a dynamic environment.
Self-motivated and result-oriented, with a strong desire to succeed.
 

Why us?

Salary in USD.
Bonus system for referrals and sales.
The adaptation period is determined individually for each candidate.

INFOBUS Holding is one of the leading European platforms for searching and purchasing bus, train, and flight tickets. We connect transport companies and travelers, creating convenient solutions for planning and booking trips.

About the Role:
We are looking for an experienced and proactive Business Analyst to join our team and help drive the development and optimization of our B2B SaaS solutions. The ideal candidate will have a strong background in IT business analysis, preferably within the passenger transportation or ticketing industry, and a passion for transforming complex requirements into clear, actionable deliverables for our development team.

Requirements:
 

Experience:

• Minimum 3 years of experience in business analysis within IT, preferably in B2B SaaS products.
• Experience in projects related to integrations, process digitalization in passenger transportation, or ticket sales is a strong advantage.
   

Personal qualities:

• Excellent communication skills and the ability to identify the true needs behind tasks.
• Self-motivation and a strong results-oriented approach.
• Ability to work effectively in a multicultural environment and understand the specifics of international markets.
   

Professional skills:

• Understanding of international passenger transportation, multi-channel platforms, route booking, and integration with external APIs (carriers, payment systems).
• Proficiency in business process modeling tools (e.g., BPMN, Lucidchart, Draw.io).
• Knowledge of JIRA/Confluence, Trello, Google Workspace, MS Office.
• Familiarity with SQL or BI tools is a plus.
   

Key Responsibilities:

• Collect and structure business requirements from clients and stakeholders.
• Prepare detailed technical requirements for developers based on high-level tasks.
• Formalize business processes, develop integration scenarios.
• Create and maintain specifications and project documentation (BRD, FSD, BPMN/UML diagrams).

If you are passionate about building impactful products, thrive in dynamic environments, and enjoy bridging the gap between business and technology - send us your CV! 

About the Project.
Our client provides a platform for centralized product information and digital asset management, streamlining content organization, distribution, and collaboration between brands and retailers.

Responsibilities:

• Design, develop, and maintain scalable full-stack solutions.
• Collaborate with product managers and developers to deliver high-quality features.
• Ensure seamless integration of frontend and backend components.
• Enhance system performance, scalability, and security.
• Stay up to date with industry trends and emerging technologies.

Requirements:

• 4+ years of experience in Python and Django development.
• 3+ years of experience with PostgreSQL or similar RDBMS, including SQL query optimization.
• Hands-on experience with cloud platforms (AWS, Azure).
• Strong understanding of REST API protocols.
• Experience with asynchronous frameworks (Aiohttp, FastAPI, or similar).
• 4+ years of experience with Angular.
• Proficiency in HTML, CSS, SCSS, JavaScript, and TypeScript.
• Experience working with REST and GraphQL APIs.
• Ability to implement pixel-perfect UI designs.
• Strong Intermediate level of English.

Our Benefits:

• Professional growth: Individual development plan, mentorship, reimbursement for professional certifications and English lessons, access to professional courses in Corporate Learning Management System.
• Community: Tech community and knowledge-sharing events, English speaking club, corporate library and book club, volunteering and charity initiatives.
• Wellbeing: Medical insurance, regular medical check-ups, sport reimbursement, paid vacation and sick leave, mental health support, and events.
• Work environment: Fully-equipped offices, top-notch equipment, flexible work format, activities both in-office and online, Y-bucks, and access to the Yalantis store.

Quantum is a global technology partner delivering high-end software products that address real-world problems. 

We advance emerging technologies for outside-the-box solutions; We focus on Machine Learning, Computer Vision, Deep Learning, GIS, MLOps, Blockchain, and more.

About the position

Quantum expands the team in Central Europe and has brilliant opportunities for Data Science Engineers. 

If you are interested in working on areas related to Data Analysis, fintech, image processing, and solving real-world challenges with innovative technologies, apply for the vacancy below. 

Must have skills:

• At least 1,5 years of commercial experience as a Data Science Engineer
• Strong knowledge of linear algebra, calculus, statistics, and probability theory
• Knowledge and experience with algorithms and data structures
• Strong experience with Machine Learning
• Expertise in areas of Computer Vision or Natural Language Processing
• Knowledge of modern Neural Networks architectures (DNN, CNN, LSTM, etc.)
• Experience with at least one of the Deep Learning frameworks (Tensorflow, PyTorch)
• Experience with SQL
• Strong knowledge of OOP
• At least an Upper-Intermediate level of English (spoken and written)

Nice to have skills:

• Experience with production ML/DL frameworks (OpenVino, TensorRT, etc.)
• Docker practical experience
• Experience with Cloud Computing Platforms (AWS, GCloud, Azure)
• Participation in Kaggle competitions

Your tasks will include:

• Full-cycle data science projects
• Data analysis and data preparation
• Development of Machine Learning / Computer Vision / Deep Learning / NLP solutions; Developing models and deploying them to production
• Sometimes, this will require the ability to implement methods from scientific papers and apply them to new domains

We offer:

• Delivering high-end software projects that address real-world problems
• Surrounding experts who are ready to move forward professionally
• Professional growth plan and team leader support
• Taking ownership of R&D and socially significant projects
• Participation in worldwide tech conferences and competitions
• Taking part in regular educational activities
• Being a part of a multicultural company with a fun and lighthearted atmosphere
• Working from anywhere with flexible working hours
• Paid vacation and sick leave days

Join Quantum and take a step toward your data-driven future.