Jobs at Djinni

Hi! We are expanding our sport retention team due to an increase in the number of products and workload. We are looking for a proactive specialist who will help our lead develop promo activities to retain sports players on the product.

If you live and breathe sports, understand the betting industry, and know how to create engaging retention campaigns, we want to meet you!

The Goal & Expected Results:

• Assisting the lead in developing promo activities to retain sports players on the product.
• We expect the employee to be an independent unit in the team who can propose new ideas regarding the development of the sport retention direction.

• You will take responsibility for the steady growth of the sports GGR share in the total revenue of the company.

   Main Responsibilities:

• Supplementing the existing promo plan with new activities.
• Creating campaigns for bonus accruals in customer.io.
• Checking for correct operation according to the initial idea of the campaign.
•  Requirements for our ideal candidate:
• Values Match: You are truly "in the loop" and understand the difference between a player who bets on the English Premier League and a player who bets on table tennis. You know exactly when the Champions League final will take place and when the season in the Portuguese Primeira Liga starts. (Note: Not knowing how sports betting works at all is a red flag for us).
• Experience: 1.5 years of experience minimum.
• Hard skills (critical): Fluent in CRM tools (customer.io, smartico, betby, etc.).
• Hard skills (desired): Practical experience working with communication channels (SMS, Email, messengers) and strong analytical skills (Excel, BI-systems).
• Soft skills: Attention to detail, focus, creativity, and the ability to think like a sports player. Stress resistance is highly desired.

What We Offer:

• Format: 100% remote work with a standard 5/2 schedule.
• Payments: Reliable and secure — processed in USDT.
• Remuneration: Competitive base salary + attractive performance-based bonuses.
• Growth: Clear opportunities for professional and career advancement within the project.
• Benefits: Paid vacation and sick leave.

About the Role:
We are looking for a highly attentive and hands-on CRM / Email Marketing Specialist to help us execute our retention communication plan. If you enjoy the technical setup of campaigns, are incredibly detail-oriented, and have solid practical experience with Customer.io — we want you on our team!

Responsibilities:
Campaign Assembly & Launch: Build, set up, and launch regular promotional campaigns and automated flows (trigger-based / lifecycle emails) according to the provided content plan.
Customer.io Management: Handle the technical setup of campaigns, flow logic, dynamic variables, and triggers directly within the platform.
Audience Segmentation: Build and apply audience segments based on specific behavioral criteria to ensure accurate targeting.
Quality Assurance (QA): Thoroughly test all emails and push notifications before launch to ensure perfect formatting, correct links, and accurate variable mapping.
Basic Reporting: Monitor baseline campaign performance (Open Rate, CTR, Deliverability basics) and report any anomalies.

Requirements:
Experience: 1+ years in a similar execution-focused role (Email Marketing Specialist, CRM Specialist, or CRM Assistant).
Tools: Practical, hands-on experience with Customer.io is a strict requirement (must-have).
Expertise: Clear understanding of how basic triggers, events, audience segmentation, and email variables work.
Soft Skills: Incredibly attentive to detail, responsible, and comfortable working with precise guidelines and daily operational tasks.
Language: English level — Intermediate+ (required for working with content and platform interfaces).

⭐️ Nice to have:
Basic knowledge of HTML/CSS for minor email template adjustments.
Previous experience in the iGaming / Casino / Betting / Sweepstakes industries.

We Offer:

• Flexibility: Remote work format with a flexible schedule, 5/2 schedule.
• Compensation: Competitive salary based on your experience + performance bonuses.
• Benefits: Paid vacation and sick leave, opportunities for professional development and continuous learning.
• Payments in USDT (white crypto);
• Growth: Opportunity for growth within the project.

Our client is an international product-based IT company specializing in the iGaming industry, with its own affiliate program and in-house products in online casino, betting, and poker. The company has been successfully operating for more than 12 years, building strong positions in the CIS market while continuing global growth and expansion.

We are currently looking for an Media Buyer TG.

📋 Key responsibilities and your contribution:

• Build and develop the Telegram Ads traffic source from scratch;
• Launch, test, optimize, and scale profitable advertising campaigns;
• Research and validate new approaches, creatives, funnels, and traffic strategies;
• Analyze campaign performance and continuously improve key metrics;
• Work closely with product, analytics, design, and marketing teams;
• Manage advertising budgets efficiently while maintaining profitability;
• Build a knowledge base of successful approaches and continuously optimize workflows;
• Monitor Telegram Ads updates, market trends, and competitor activities;

• Play a key role in growing the new direction with the opportunity to become a Team Lead as the team expands.

   

📚 Your qualifications:

• 3+ years of experience in media buying, including at least 1 year of hands-on experience with Telegram Ads;
• Proven experience in Gambling/iGaming traffic acquisition;
• Strong understanding of the Telegram Ads ecosystem, traffic sources, and campaign optimization;
• Experience launching, testing, and scaling campaigns from scratch;
• Ability to analyze key performance metrics (ROI, CPA, CR, CTR, CPM, PnL) and make data-driven decisions;
• Experience working with analytics and tracking tools (Keitaro, Binom, Voluum, Google Sheets, Power BI, etc.);
• Experience managing monthly advertising budgets starting from $50K;
• Understanding of affiliate offers, agency accounts, and Telegram Ads infrastructure;
• Strong analytical mindset and willingness to experiment with new approaches;
• Ability to work independently, take ownership, and build processes from the ground up.

➕ Nice to have:

• Experience working with CIS GEOs;
• Experience building Telegram funnels using bots, mini apps, or custom landing flows;
• Existing contacts with Telegram Ads agencies or account providers;
• Experience working with both product and affiliate traffic;
• Knowledge of automation tools, scripts, or AI solutions for campaign optimization;

• Experience mentoring teammates or leading traffic initiatives.

  
   

Benefits:

⭐ Time Off & Recovery: 20 working days of fully paid annual leave, fully paid sick leave, and public holidays off according to company policy.

⭐ Health & Wellness: A flexible Benefits cafeteria that allows you to choose the perks that fit you best, with options including medical support, regular check-ups, mental health services, or gym access.

⭐ Education & Development: Internal and external training, industry events, language courses, and professional service subscriptions.

⭐ Workspace & Tech: All necessary corporate equipment provided, the flexibility to work fully remotely, and premium digital tools to enhance performance (e.g., AI tools, ChatGPT Plus).

⭐ Work Environment & Perks: Holiday bonuses, gifts for special occasions, paid business trips, and team events.

Our client is an international product-based IT company specializing in the iGaming industry. Founded in 2014, the company has been successfully operating on the market for more than 11 years, bringing together a team of 390+ professionals. Starting as a leader in the CIS region, the company is now actively expanding on a global scale.

We are currently looking for a Middle/Senior Media Buyer to join the media buying team and work with scalable traffic across different GEOs and tiers.

📋 Key responsibilities and your contribution:

— Launch, manage, and scale Facebook advertising campaigns across Tier 1 / Tier 2 / Tier 3 GEOs.

— Full ownership of traffic performance and financial results, including PnL responsibility.

— Analyze and optimize key performance metrics: ROI, CR, CTR, CPM, CPA, PnL.

— Work closely with offers, creatives, agencies, and internal teams to improve campaign efficiency.

— Test and adapt strategies based on changes in GEOs, offers, platforms, and market conditions.

— Identify bottlenecks in funnels and processes, propose and implement optimization solutions.

— Maintain clear communication, task-setting, and feedback loops within the team.

— Take an active, hands-on role in both arbitrage and product-oriented media buying directions.

📚 Your qualifications:

— 3+ years of experience in media buying / traffic arbitrage.

— Deep understanding of Facebook Ads ecosystem and traffic acquisition mechanics.

— Proven experience managing monthly budgets from $50,000.

— Strong analytical mindset and confidence working with performance metrics and profitability models.

— Hands-on experience with analytics and tracking tools such as Power BI, Google Sheets, Voluum, Binom, Keitaro (or similar).

— Experience working with offers, creatives, and external partners (agencies, vendors).

— High level of responsibility for results and readiness to work with CRM and PnL models.

— Strong communication skills and ability to give and receive constructive feedback.

— Critical thinking, initiative, flexibility, and adaptability in a fast-changing environment.

Benefits:

⭐ Competitive base salary + performance bonus up to 40% of profit, top and private offers, including in-house products.

⭐ Days of recovery: 20 paid vacation day per year and unlimited sick leave days.
⭐Health & Wellness: A flexible Benefits cafeteria that allows you to choose the perks that fit you best, with options including medical support, regular check-ups, mental health services, or gym access.
⭐ Education: a variety of foreign languages course for you to choose from. Also we are open for your development and you can choose different courses /training for improving your skills.
⭐ Compensation: additional benefits that can be used according to company policy, e.g. paid business trips, international conference opportunities, lunch perks at our offices etc.
⭐ Workspace & Tech: All necessary corporate equipment provided, the flexibility to work fully remotely, and premium digital tools to enhance performance (e.g., AI tools, ChatGPT Plus).

⭐ Full freedom and hands-on involvement: opportunity to work across multiple directions — arbitrage, product media buying, various GEOs and tiers — without being locked into one narrow scope.

Our client is an international product-based IT company specializing in the iGaming industry. Born in 2014, they rocked the CIS region and are now taking their success worldwide.

We are currently looking for a Senior Media Buyer Tik-Tok tо launch a new dicrection.

📋 Key responsibilities and your contribution:

• Launch and develop TikTok Ads as a new traffic source in the iGaming vertical.
• Plan media buying strategies, test hypotheses, and scale profitable campaigns.
• Monitor key metrics, including ROI, CPA, FTD, conversions, and PnL.
• Test new GEOs and offers, identify profitable combinations, and scale successful campaigns.
• Collaborate with the Design team on creative production and testing.
• Work with Support to maintain advertising account infrastructure and stability.
• Coordinate with the Resell team on offer selection, KPIs, and scaling opportunities.
• Manage ad budgets, track daily spend, and ensure accurate financial reporting.
• Analyze campaign performance, optimize results, and maintain a monthly ROI of at least 20%.

• Work closely with the Team Lead to follow the strategy and address potential risks

   

📚 Your qualifications:

• At least 1 year of experience with TikTok Ads, including independently launching advertising campaigns from scratch.
• Experience in the iGaming vertical as a Facebook Media Buyer.
• Experience managing large advertising budgets of at least $50,000 per month.
• Strong understanding of key performance metrics, including ROI, CPA, FTD, conversions, and PnL.
• Proven experience optimizing and scaling advertising campaigns with a focus on profitability.
• Ability to test advertising creatives, analyze performance, and scale successful campaigns.
• Experience working with different GEOs and offers, with an understanding of Tier 1, Tier 2, and Tier 3 markets.
• Strong analytical skills and experience with ad spend tracking, financial reconciliation, and traffic performance monitoring.
• High level of ownership, independence, analytical thinking, and a results-driven mindset.
• Ability to collaborate effectively with Team Lead, Design, Support, and Resell teams.
  
  Benefits:

⭐ Time Off & Recovery: 20 working days of fully paid annual leave, fully paid sick leave, and public holidays off according to company policy.

⭐ Health & Wellness: A flexible Benefits cafeteria that allows you to choose the perks that fit you best, with options including medical support, regular check-ups, mental health services, or gym access.

⭐ Education & Development: Internal and external training, industry events, language courses, and professional service subscriptions.

⭐ Workspace & Tech: All necessary corporate equipment provided, the flexibility to work fully remotely, and premium digital tools to enhance performance (e.g., AI tools, ChatGPT Plus).

⭐ Work Environment & Perks: Holiday bonuses, gifts for special occasions, paid business trips, and team events.

Our Helpdesk team is the foundation of the company’s internal IT infrastructure. We ensure secure access to resources, manage the device fleet, maintain network reliability, and support core corporate services, enabling teams across the organization to work efficiently and without interruption.

We are looking for a Helpdesk Lead who will take end-to-end ownership of this function: defining service standards, driving operational excellence, and automating routine processes to improve efficiency and scalability.

In this role, you will work across device fleet management for macOS, Linux, and Windows, identity and access management (IAM), asset lifecycle management, network infrastructure, and the administration of Google Workspace and Atlassian environments.

You will partner closely with Engineering, Security, and Leadership teams, playing a key role in building and maintaining a secure, reliable, and scalable internal IT environment that supports the company’s growth.

Responsibilities

• Lead daily Help Desk operations and define the long-term strategy for the function, ensuring operational stability, SLA compliance, and service quality
• Maintenance and monitoring of the corporate network equipment, access control systems, and overall network performance
• Overseeing hardware lifecycle: procurement, setup, maintenance, and replacement
• Management and optimization of corporate software licenses
• Supervision of the configuration and support of macOS, Linux, and Windows environments
• Standardization of onboarding/offboarding process
• Develop the team through coaching, feedback, structured knowledge sharing and participation in hiring process

• Collaborate with management and cross-functional teams on operational and improvement initiatives

   

Requirements

• 5+ years of experience in SysAdmin / IT Support / HelpDesk roles
• 2+ year of team leadership
• Experience in process building, automation
• Solid understanding of networking (VLANs, IPsec, DNS, etc.)
• Strong experience with MacOS, Unix/Linux, and Windows administration
• Hands-on experience with Google Workspace, Jira/Confluence, and Access Control Systems
• Excellent troubleshooting, prioritization, and communication skills
• IT asset management

• English (B2)

   

Will be a plus

• VoIP
• Access Control Systems

• Advanced proficiency in Jira and Confluence

   

We offer

• Compensation for tax expenses of private entrepreneurs in Ukraine
• Qualified assistance and support for Ukrainian private entrepreneurs
• 10 paid sick leave days per year
• 20 paid vacation days per year
• Public holidays according to current Ukrainian legislation
• Medical insurance for employees
• Compensation for professional education and learning English
• Compensation for a sports subscription or sports equipment

About the Company

Established in 2004, ALLSTARSIT was founded with a clear vision: to enhance the landscape of global IT employment by bridging the gap between companies and skilled professionals. The core belief was that assembling a team shouldn't be hindered by geographical constraints. Fast forward to the present day, ALLSTARSIT stands as an international outstaffing service provider committed to change the way businesses recruit, compensate, and oversee top talent worldwide. 

With operational hubs scattered across Europe, Asia, and LATAM, and its headquarters situated in San Francisco, US, the company boasts a workforce of over 1,000 adept professionals. Spanning across more than 20 countries, ALLSTARSIT offers a diverse range of skilled employees across various verticals, including AI, cybersecurity, healthcare, fintech, telecom, media, and so on.

About the Project

We are looking for an experienced PCB Layout Designer to join our R&D team and lead PCB design activities for advanced energy measurement and control systems. This role involves close collaboration with hardware engineers throughout the entire development cycle, from schematic design through mass production, reporting directly to the Hardware Group Manager.

Must Have

• 3–5+ years of experience in PCB layout design.
• Strong proficiency with Cadence Allegro PCB Designer.
• Experience working with OrCAD Capture.
• Experience designing multilayer PCBs.
• Good understanding of Signal Integrity (SI) and Power Integrity (PI).
• Ability to work effectively in a multidisciplinary team environment.
• Experience working with PCB manufacturers and assembly vendors.
• High attention to detail.
• Systems-thinking approach.
• Ability to manage multiple tasks and priorities simultaneously.

• Strong teamwork and communication skills.

   

Nice to Have

• Experience with EMC/EMI standards and compliance.

• Experience designing mixed-signal boards (Digital + Analog).

   

Scope of work:

• Design and edit complex printed circuit boards (PCB Layout) with 2–10+ layers using Cadence Allegro PCB Designer.
• Work with schematics in OrCAD Capture and accurately implement them into PCB layouts.
• Define and maintain PCB design rules according to electrical, EMC/EMI, and Signal Integrity requirements.
• Route high-speed signals, analog and digital circuits, communication interfaces, and related systems.
• Design boards with multiple voltage domains (low/medium voltage), including proper isolation and separation requirements.
• Collaborate with the mechanical engineering team to ensure enclosure and mechanical fit.
• Prepare manufacturing documentation and files, including Gerber files, Drill files, Stackup documentation, and Pick & Place files.
• Support production and manufacturing processes.
• Work with the Priority ERP system to build and maintain component libraries and databases.

SnoopGame QA is looking for a Trainee/Junior QA to join our team and start a professional journey in game testing.

We specialize in manual game testing services, working with publishers and developers worldwide. Over the past decade, our team has tested 1,500+ games across a huge variety of genres - from Hyper Casual and mobile titles to ambitious AAA projects.

Today, we are proud to be one of the leading game QA companies in Ukraine, with extensive expertise in manual testing across multiple platforms. 

Responsibilities:

• Plan testing and compile test documentation.
• Participate in the testing process at all stages of development.
• Communicate with individuals involved in the development process.
• Verify corrected defects.
• Prepare error reports and more.

Required Skills:

• English proficiency: at least B2.
• Understanding of modern gaming applications.
• Knowledge of testing theory.
• Ability to write test documentation.
• A rich gaming experience in various genres.
• Desire to develop in game development testing with the best experts in this field.

We offer:

• Working hours: 10:00 AM to 7:00 PM (including 1-hour lunch break).
• Paid vacation: 20 workdays per year, 10 sick days per year.
• Gradual salary increase to $800 over 1.5 years.
• Using Confluence, Slack, and Trello for smooth communication and collaboration.
• English lessons with a native speaker and interactive sessions (exercises, quizzes, games).
• Performance reviews and rewards based on contributions.
• Corporate sessions with a psychologist, 1-on-1 meetings and open feedback culture.
• Equipment provided.
• Public holidays are day off.
• Team-building events and corporate activities.
• A friendly team of gaming and tech enthusiasts.

Company Description

Are you a Senior Data Engineer passionate about building scalable, high-performance data platforms and working with modern Lakehouse technologies? Join Sigma Software’s Data Engineering Center of Excellence and contribute to the modernization of an enterprise-scale analytics ecosystem for the retail domain.
We are looking for a Senior specialist with strong Databricks, PySpark, and cloud data engineering expertise to participate in the migration of a large-scale analytical platform from BigQuery to Databricks. You will collaborate with international teams, contribute to architectural decisions, and help shape reliable and scalable data solutions.
We at Sigma Software create opportunities for continuous learning, technology growth, and meaningful engineering impact while working on complex international projects.

CUSTOMER

Our Customer is a leading retail technology company specializing in AI-driven pricing optimization solutions for enterprise retailers. The company helps businesses improve profitability and competitiveness through advanced analytics, automation, and intelligent pricing strategies. Their platform combines business intelligence with sophisticated algorithms to support data-informed pricing decisions at scale for global retail organizations.

PROJECT

The project focuses on the strategic migration of a large-scale analytical platform from a legacy BigQuery ecosystem to a modern Databricks Lakehouse architecture. The platform processes high-volume retail datasets, machine learning workloads, analytics pipelines, and customer-specific business logic.
As part of the modernization initiative, the engineering team is implementing scalable Spark-based processing, Delta Lake architecture, medallion data layers, and modern governance practices. The role offers an opportunity to work with distributed data processing systems, optimize large-scale workloads, and contribute to the evolution of an enterprise-grade data platform.

Key Technologies: Databricks, Apache Spark, PySpark, Delta Lake, Python, SQL, Airflow, GCP, CI/CD, Unity Catalog

Job Description

• Participate in the migration of a large-scale analytical platform from BigQuery to Databricks
• Design and implement scalable Lakehouse architectures using Databricks and Delta Lake
• Analyze existing ETL / ELT workloads and define migration approaches
• Develop and optimize data pipelines processing large volumes of retail and analytical data
• Implement incremental processing strategies and scalable transformation frameworks
• Build and maintain Spark-based data processing solutions using PySpark
• Design and maintain medallion architecture layers including Bronze, Silver, and Gold
• Implement data governance and security best practices using Unity Catalog
• Collaborate with Data Science, Analytics, Product, and Customer Engineering teams
• Participate in architecture discussions and technical solution design
• Develop reusable data platform components and engineering standards
• Conduct code reviews and contribute to platform reliability and maintainability
• Troubleshoot and optimize complex SQL and Spark workloads
• Support production deployments and platform modernization activities

Qualifications

• 5+ years of professional experience as a Data Engineer
• Strong programming skills in Python and advanced SQL
• Hands-on commercial experience with Databricks
• Strong knowledge of Apache Spark, primarily PySpark
• Experience designing and building modern cloud-based data platforms
• Experience developing ETL / ELT pipelines and large-scale data processing solutions
• Hands-on experience with Delta Lake
• Experience with Spark Declarative Pipelines
• Experience with cluster monitoring, metrics analysis, and performance optimization
• Strong understanding of distributed data processing architectures
• Solid understanding of data warehousing concepts and dimensional modeling
• Experience with Airflow or similar orchestration tools
• Experience optimizing complex analytical SQL workloads
• Experience implementing CI / CD practices for data engineering platforms
• Strong troubleshooting and performance optimization skills
• Ability to work collaboratively in cross-functional international teams
• Upper-Intermediate or higher English level

WILL BE A PLUS

• Experience working with GCP cloud services
• Experience with AWS or Azure cloud platforms
• Experience in retail analytics or pricing optimization domains
• Experience supporting machine learning or AI-related data workloads
• Experience with platform modernization and cloud migration initiatives

Additional information

PERSONAL PROFILE

• Strong analytical and problem-solving mindset
• Proactive and ownership-driven approach
• Ability to work independently and collaboratively
• Good communication and stakeholder collaboration skills
• Passion for scalable data engineering and modern data platforms
• Interest in continuous learning and technology innovation

About the Role:
Our AI agents generate playable ad code, but great playables need a creative brain steering the quality.
You'll write detailed briefs, review output, and make sure every playable we ship is both high-quality and highperforming.

What you'll do:
- Write detailed creative briefs for playable ad production, translating game DNA, audience insights and performance data into a clear creative definition
- Review playable ads and give sharp, actionable feedback on mechanics, visuals, juice and UX flow
- Review and give feedback on briefs written by others
- Run creative research across the playable ads landscape using competitive intelligence platforms
- Track creative performance metrics and use them to guide creative decisions
- Work with product teams to improve how our generative AI tools support creative quality
- Mentor team members on quality improvements when needed

What you bring:
- 2 yrs of experience as a Creative Producer
- Gaming industry background: non-negotiable. You understand how games are marketed and what makes players convert
- Playable ad experience: you've managed playable ad production on the creative / marketing side
- Strong brief writing: you can turn a game's identity into a clear, actionable brief
- Sharp feedback instincts: you can say exactly what's wrong with a playable and how to fix it
- Creative performance awareness: you understand metrics (CTR, IPM) and how creative choices affect them
- UA knowledge: you understand the user acquisition funnel and where creatives fit in
- Experience with competitive intelligence / creative research platforms
- Passion for generative AI and pushing creative boundaries with AI tools

Nice to Have:
- Experience with AI-generated content or AI-assisted creative pipelines

Biosphere Corporation is one of the largest manufacturers and distributors of home, hygiene, and professional products in Eastern Europe and Central Asia, with brands including Freken BOK, Smile, Selpak, Vortex, Novita, PRO service, GRAFF, and many others. We are looking for a Service Desk Engineer to join our team.

Key Responsibilities:

• Provide technical support to users and promptly resolve technical issues.
• Maintain, diagnose, and repair computer equipment.
• Configure and maintain network equipment and local area networks.
• Install, configure, and update software.
• Organize and provide technical support for video conferences.
• Ensure the proper functioning of IT equipment and users’ workstations.

Requirements:

• Experience in administering Windows 10/11 operating systems; knowledge of macOS will be an advantage.
• Understanding of network technologies and protocols.
• Skills in assembling, configuring, and diagnosing computers.
• Knowledge of PC hardware and ability to perform component replacement and basic hardware repairs.
• Experience installing, configuring, and updating software.
• Ability to independently diagnose and troubleshoot technical issues.

We Offer:

• Interesting projects and challenging tasks.
• Competitive salary (discussed during the interview).
• Convenient working schedule: Monday-Friday, 9:00 AM–6:00 PM.
• Official employment, paid vacation and sick leave.
• Professional development and training, including internal training and compensation for external courses.
• Discounts on Biosphere Corporation products.
• Financial assistance in cases such as childbirth, medical treatment, force majeure, and circumstances related to military actions.
• Office location: 37 Zaporizke Highway, Dnipro (Topol-1 district).

Learn more about Biosphere Corporation, our strategy, mission, and values:

Biosphere Corporation website
Biosphere Corporation on Facebook

Join our team of professionals!

By submitting your CV for this position, you consent to the processing of your personal data in accordance with the applicable legislation of Ukraine.

If your application is shortlisted, we will contact you within 1–2 business days.

We are looking for an AI/ML Research Scientist.

Requirements:

• PhD with 1+ years of research experience in Electrical Engineering, Computer Science, Information Systems, or a STEM-related field
• 1+ years of experience with modern machine learning architectures including Transformers, Graph Neural Networks, and Diffusion models
• Strong coding skills in Python and C++
• Experience with machine learning frameworks like PyTorch
• At least 1 publication in top machine learning conferences (NeurIPS, ICML, ICLR, etc.)
• Experience with deep learning on graphs (general graphs, circuit graphs, molecular graphs, or trees)
• Familiarity with classical search and optimization techniques (Genetic Algorithms, Monte-Carlo Tree Search, Dijkstra's Algorithm, etc.)
• Experience with EDA tools, either commercial or open-source
• Publications in top-tier venues focusing on AI for chip design or AI for materials science. 

We are looking for a Mid Data Engineer in Kraków, Poland who will own the company data lake — the system of record for millions of financial events a day (bets, wallet movements, live odds) across 12M+ active users. You decide how that data lands, is stored, retained, and governed on S3 + Snowflake/Databricks, so analytics, finance, and regulators all see accurate, reconciled data with zero drift from source.

Domain: Regulated iGaming / wallet & ledger data. Audit-heavy: regulators, finance and analytics all consume the same tables. Millions of financial events per day, terabyte-plus scale.
 

What you'll be doing:

• Own the lakehouse architecture: bronze/silver/gold layers, Iceberg/Delta tables, schema evolution.
• Land operational data via CDC streaming (Kafka, Debezium), handling late and duplicate events.
• Design data layout for speed and cost: partitioning, compaction, file sizing, query performance on Trino/Athena/Snowflake.
• Own retention and archival: storage tiering, regulatory retention, immutability, GDPR deletion.
• Guarantee correctness: freshness SLAs, drift detection, reconciliation against the source wallet and ledger systems.
• Own governance: catalog and lineage, row/column access control, PII masking, encryption, audit trails.
• Monitor ingestion health, data anomalies, and cloud storage/compute spend.
  
  Must-have:
• 3 years' experience in hands-on delivery within that architecture — pipelines, ingestion, models, monitoring
• Lakehouse architecture — bronze/silver/gold layering, an open table format (Iceberg, Delta, or Hudi), schema evolution.
• Data layout & query optimization at TB+ scale — partitioning, compaction, file sizing, query performance on Trino/Athena/Snowflake.
• Cloud lakehouse/DWH in production — Snowflake, Databricks, or BigQuery.
• CDC & streaming ingestion — Kafka + Debezium or equivalent; late, duplicate and out-of-order events.
• Strong SQL and data modeling — enough relational grounding to reason about the OLTP systems you capture from. Critical for financial ledgers.
• Correctness — freshness SLAs, drift detection, reconciliation against source wallet/ledger systems.
• Governance — catalogs, lineage, row/column access control, PII masking, retention, GDPR deletion.
• Cloud object storage — S3 or GCS, plus storage tiering and archival.

• Python and an orchestrator — Airflow or Dagster, as tools.

   

  Location & work model:

• Kraków, Poland. Hybrid — 2 days per week from the office.

Meet the YozmaTech

YozmaTech isn’t just another tech company – we’re a global team of go-getters, innovators, and A-players helping startups and product companies scale smarter and faster.
We build dedicated development teams across 10+ countries, creating strong, long-term partnerships based on trust, transparency, and real impact.
Here, every idea counts. We value people who are proactive, open-minded, and ready to grow. If you’re passionate about building meaningful products and want to join a team that feels like family – you’ll feel right at home with us.

Our client is building an innovative AI-powered platform that transforms how the world’s largest companies manage their real estate assets. The solution leverages the latest advancements in artificial intelligence and large language models (LLMs) to automate complex workflows, analyze massive datasets, and provide instant, intelligent answers to business-critical questions.

Their clients are large global enterprises managing thousands of real estate properties worldwide. Traditionally, real estate departments rely on manual processes and third-party services that can take weeks or months to deliver results. With this platform, these processes are automated and accelerated — what used to take months now takes minutes.

Bonus Points:
🔹Work with cutting-edge AI and LLM technologies
🔹Opportunity to solve complex, real-world enterprise problems
🔹High impact work used by global enterprise clients
🔹Full ownership across the full development lifecycle
🔹Fast-paced learning environment with modern technologies
🔹Small, agile, and highly collaborative engineering team

Key Requirements:
🔹 3+ years of experience as a Full Stack Developer;
🔹 Strong experience with modern frontend frameworks (Angular 18+ preferred or strong React + TypeScript);
🔹 Backend experience with Node.js (NestJS is a plus) or similar frameworks (.NET with willingness to transition to Node/NestJS);
🔹 Strong proficiency in TypeScript / JavaScript;
🔹 Hands-on experience integrating AI/LLM features (OpenAI API, ChatGPT-based features, etc.);
🔹 Experience using AI tools for development (Cursor, GitHub Copilot, ChatGPT, Claude, etc.);
🔹 Solid understanding of relational and/or NoSQL databases;
🔹 Familiarity with cloud infrastructure and CI/CD pipelines;
🔹 Ability to independently deliver complex end-to-end features;
🔹 Up-to-date knowledge of modern frameworks and willingness to learn quickly;
🔹 English – Upper-Intermediate or higher.

What you will do:
🔹 Develop and maintain full-stack features across frontend and backend components;
🔹 Build and integrate AI/LLM-powered functionality into the platform;
🔹 Design scalable and efficient backend services and APIs;
🔹 Work with databases, including schema design and query optimization;
🔹 Collaborate with product and engineering team to deliver end-to-end solutions;
🔹 Participate in architectural decisions and system design;
🔹 Contribute to infrastructure and CI/CD improvements;
🔹 Ensure code quality through best practices, code reviews, and testing;

Interview stages:
🔹 HR Interview;
🔹 Technical Interview;
🔹 Interview with VP R&D - (30 min)
🔹 Culture Fit Interview with HR (Client-side HR) - (30 min)
🔹 Reference Check;
🔹 Offer;

Why Join Us?

At YozmaTech, we’re self-starters who grow together. Every day, we tackle real challenges for real products – and have fun doing it. We work globally, think entrepreneurially, and support each other like family. We invest in your growth and care about your voice. With us, you’ll always know what you’re working on and why it matters.
From day one, you’ll get:
🔹 Direct access to clients and meaningful products;
🔹 Flexibility to work remotely or from our offices;
🔹 A-team colleagues and a zero-bureaucracy culture;
🔹 Opportunities to grow, lead, and make your mark.

After you apply

We’ll keep it respectful, clear, and personal from start to offer.
You’ll always know what project you’re joining – and how you can grow with us.

Everyone’s welcome

Diversity makes us better. We create a space where you can thrive as you are.

Ready to build something meaningful?

Let’s talk. Your next big adventure might just start here.

Requirements

• 1+ year of hands-on experience in digital marketing, paid advertising, or targeting.
• Practical experience with Meta Ads (Facebook & Instagram) and Google Ads — campaign setup, monitoring, optimization, and performance analysis.
• Experience with SEO and basic understanding of how SEO works.
• Basic or practical knowledge of AI Optimization (AIO) / Generative Engine Optimization (GEO), or strong interest in learning and developing these skills.
• Basic to intermediate knowledge of GA4 and Google Tag Manager, including event and conversion tracking.
• Ability to analyze campaign performance, website data, and key marketing metrics.
• Understanding of key paid advertising metrics such as CTR, CPC, CPM, CPA, ROAS, and conversion rate.
• English: B2 (Upper-Intermediate).
• Strong attention to detail, proactive approach, and willingness to learn.
• Willingness to actively use AI tools for research, content creation, campaign analysis, SEO/AIO, and process optimization.
• Ability to work with several projects and tasks simultaneously.

Responsibilities

• Set up, launch, monitor, and optimize Meta Ads and Google Ads campaigns for client projects.
• Analyze advertising performance and make adjustments to improve conversions, CPA, ROAS, and overall campaign performance.
• Work with different campaign types, audiences, creatives, keywords, and targeting settings.
• Conduct basic audience and competitor research to support advertising campaigns.
• Work with SEO, including keyword research, on-page optimization, content optimization, and basic technical SEO tasks.
• Support AIO/GEO optimization to improve clients' visibility in AI-powered search and answer engines.
• Set up and check GA4 and Google Tag Manager tracking, including events and conversions.
• Monitor website and advertising performance and identify areas for improvement.
• Analyze marketing data and prepare insights and recommendations for optimization.
• Work on several client projects simultaneously and meet agreed deadlines.
• Follow updates and trends in Google Ads, Meta Ads, SEO, and AI search and apply relevant approaches to projects.
• Use AI tools to make marketing research, campaign analysis, SEO, content, and other marketing tasks more efficient.

What We Offer:

- A work culture built on mutual success, trust, and continuous growth;

- Competitive compensation with clearly scheduled salary reviews and raises;

- A high-performing project management team and an inspiring atmosphere of camaraderie;

- The opportunity to lead a talented team of top-tier developers and designers;

- Sports compensation to help you stay active and energized;

- Paid vacation and sick leave — because your well-being matters;

- Comprehensive health insurance coverage;

- A modern, comfortable office in the center of Lviv;

- An amazing team, warm atmosphere, and engaging corporate events.