Jobs at Djinni

About the Role
Optimizing data infrastructure at scale lies in providing breakthrough data processing acceleration to the bottomline that drives up costs: the software deployed at scale by data engineering teams.
As a Senior Software Engineer for this role, you will collaborate with the founding team in the implementation of a next-generation accelerator for Apache Spark, the most widely used Big Data processing engine at petabyte-scale.
Working at the intersection of compilers and Big Data analytics, you’ll drive state-of-the-art implementation of algorithms and techniques that span across the entire software stack, from SQL pushdown to enhancements in low-level C++ data processing APIs and beyond.

Requirements:

• 7+ years of hands-on commercial software development experience
• 3+ years of strong Scala experience
• experience with Java
• 2+ years of solid C++ experience
• Upper-Intermediate (B2+) English with confidence in active communication (meetings, discussions)
   

Responsibilities:

• Take full ownership of SQL acceleration features — from architecture and design to implementation and measurable performance gains
• Design, build, and optimize Big Data processing algorithms using Scala, Java, and C++
• Develop high-performance, low-latency components at the intersection of Big Data and compiler technologies
• Work with custom DSLs and code generation frameworks to extend and enhance query execution capabilities
• Contribute to cross-language integrations (Java ↔ C++ via JNI) and drive system-wide performance improvements
   

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

We are looking for a Senior SEO Specialist to join our team!

Requirements:

- At least 5 years of experience in SEO, with proven successful project promotion cases;

- At least 3 years of SEO experience in the iGaming niche;

- Deep understanding of search engine algorithms;

- English level B1 or higher;

- Ukrainian/Russian native proficiency;

- Development and implementation of a comprehensive SEO strategy, including content strategy, technical optimization, link profile management, UX improvements, and behavioral factors analysis;

- Knowledge of HTML and CSS sufficient for SEO-focused code analysis;

- Experience working with high-load and multi-regional websites;

- Deep understanding of all ranking factors;

- Experience with SERM and Parasite SEO;

- Strong expertise in technical SEO;

- Proficient with all relevant industry tools;

- Ability to collaborate with developers, link builders, content managers, and designers;

- Experience in A/B testing of SEO hypotheses and traffic split testing;

- Experience analyzing search engine bot behavior;

- Ability to defend and justify SEO strategies to business stakeholders;

- Understanding of business metrics;

- Experience mentoring mid-level specialists (task setting and guidance);

- Experience in automating routine tasks.

Will be plus:

Experience working with AI agents (Claude Code, Codex, Cursor)

Soft Skills:

- Analytical thinking;

- Flexibility;

- Results orientation; 

- Clear and simple communication;

- Full ownership and independent management of projects;

- Steady growth in traffic and rankings across projects;

- Improvement of business metrics (registrations, FTD);

- Achievement of intermediate SEO strategy goals;

- Reduced dependency of projects on the team lead/manager;

- Scaling successful use cases across other projects;

- Initiating new ideas and approaches;

- Collaboration with the content team;

- Collaboration with the link-building team;

- Collaboration with the development team;

- Achievement of defined project KPIs;

- Budget control across projects;

- Testing hypotheses to improve project metrics and analyzing test results;

- Preparing pre-sale SEO audits for potential clients.

Our benefits to you:
☘️An exciting and challenging job in a fast-growing business group, the opportunity to be part of a multicultural team of top professionals in Development, Architecture, Management, Operations, Marketing, Legal, Finance and more

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

🧑🏻‍💻Modern corporate equipment based on macOS or Windows and additional equipment are provided

🏖Paid vacations, sick leave, personal events days, days off

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

📚Educational programs: regular internal training sessions, compensation for external education, attendance of specialized global conferences

🎯Rewards program for mentoring and coaching colleagues

🗣Free internal English courses

✈️In-house Travel Service

🦄Multiple internal activities: online platform for employees with quests, gamification, presents and news, clubs for movie / book / pets lovers and more

🎳Other benefits could be added based on your location

SBC Performanceis a digital marketing and ad-tech ecosystem partnering with the world’s top ad platforms to drive performance. We help brands scale globally through high-converting creative marketing solutions and smart campaign optimization. We hold leading positions on TikTok, Meta, and Google.

Our team consists of over 200 specialists across the Czech Republic, Poland, and other countries. We build a dynamic culture driven by speed, analytics, and results.

We’re currently looking for a strong Senior User Acquisition Manager to scale paid acquisition and drive business growth through data-driven decisions.

Key Responsibilities
 

• Be responsible for the entire marketing analytics cycle—from raw data to decision-making
• Build and scale data flows for effective marketing across all paid channels
• Be responsible for marketing dashboards with detailed breakdowns by ad creatives and traffic sources to track and optimize LTV, CAC, ROAS, and conversions in the sales funnel
• Develop and automate LTV models, cohort analysis, and revenue attribution across all channels
• Work closely with the marketing team to optimize budget allocation, scaling strategies, and channel performance
• Support and evaluate marketing experiments (creatives, funnels, audiences, A/B tests)
• Ensure accurate attribution and data consistency across all marketing and product touchpoints

Requirements

•  3+ years of experience with META Ads for B2C SaaS products (hands-on experience with Google Ads and TikTok Ads is a plus);
• A proven track record of managing advertising budgets (starting at $500,000/month);
• You seek to validate hypotheses with data and always track metrics for campaigns;
• You value a non-standard approach, especially when it comes to testing and interesting case studies;
• Initiative and a desire to quickly grow into a people manager role;
• intermediate English (B1+).

Nice to have

• Experience with apps, W2A/W2W

What We Offer

• Remote work
• Competitive compensation
• Flexible working hours (start between 9:00–11:00 CET)
• All necessary equipment
• Paid vacation and sick leave
• Educational support: reimbursement for certifications, courses, and training
• Company events and internal knowledge-sharing activities
• Transparent communication and an open feedback culture

Requirements:

• Basic knowledge and understanding of programming
• Basic knowledge and understanding of OOP
• Basic knowledge of Swift
• Basic knowledge of SwiftUI
• Basic knowledge of UIKit
• Understanding of iOS user interface guidelines and best practices
• Basic knowledge of databases and SQL
• Basic knowledge of HTTP and networking
• Intermediate English or higher
• 
  
  Responsibility:
• Develop and update iOS Applications
• Write unit tests for iOS Applications
• Collaborating with the team

About the Company

An international iGaming holding company operating a full online casino ecosystem: proprietary platform, payment infrastructure, marketing, and affiliate network.

We are building a management structure in Tier-1 markets and are looking for a strategic leader to head a regional cluster of brands. This is not an operational CEO role for a single project, but a portfolio leadership position with full responsibility for strategy, performance, and regional growth.
 

Key Responsibilities
 

• Manage a portfolio of brand projects within the region (3–6 CEOs reporting directly);
• Define and execute the overall regional development strategy;
• Identify priority GEOs, determine launch formats (in-house / white label), and scaling sequence;
• Oversee local CEOs’ strategies and ensure delivery of KPIs and business plans;
• Take full ownership of the region’s consolidated P&L;
• Analyze key metrics (GGR, NGR, Retention, CPA, ROI, Payback) and make data-driven decisions;
• Evaluate investment efficiency of new launches and initiatives;
• Build the region’s operational architecture: processes, reporting, and metric standardization;
• Participate in hiring and assessing local CEOs and key executives;
• Work closely with the board: present strategy, defend budgets, and investment initiatives;
• Develop the region as an investment cluster with strong scalability potential.
   

Requirements
 

• Deep understanding of the iGaming B2C operational business;
• Proven experience managing multiple business units, brands, or regions;
• Hands-on experience in Tier-1 markets;
• Strong knowledge of local licensing, payment infrastructure, and marketing models;
• Experience with strategic P&L management and budgeting;
• Ability to build management structures and reporting systems;
• Capability to lead strong CEOs without micromanagement;
• Strong analytical and systems thinking, with a results-driven mindset;
• Entrepreneurial approach and ability to thrive in a fast-paced environment;
• Fluent English for effective communication with an international team.
   

What We Offer
 

• A strategic, regional leadership role;
• Responsibility for a multi-brand investment cluster;
• Opportunity to scale the region through launching new projects;
• High level of autonomy in decision-making;
• Direct interaction with the board and involvement in shaping holding-level strategy;
• Access to the full Fidel Group ecosystem: platform, payment infrastructure, marketing, and operational resources;
• A dynamic environment with minimal bureaucracy and significant impact on the business.

About Traffic Label

Traffic Label is an affiliate marketing group in iGaming, 18+ years in the market, 300+ clients. The group owns a crypto casino (5Bet), a CRM platform (Sway Gaming), and a marketing data subsidiary (Acrum). We build internal data products that drive player acquisition and retention across all brands.

Role Overview

We are building a Customer Data Platform (CDP) that ingests data from 10+ casino partners, builds a unified player profile, and activates marketing campaigns through multiple ESPs (DotDigital, Adestra, FastTrack).

The platform is live: 5 sources in production, 30-40 dbt models in the silver layer, working email campaigns through DotDigital.

You’ll join a Data Platform team of 5-10 engineers (Senior DE, QA, DA, PM) reporting to the Data Engineering Lead. You will own the ingestion layer, source integrations, and platform tooling. Your job: make it so that connecting a new data source takes days, not months. You’ll design and build reusable pipeline templates and own integrations with external systems (both inbound and outbound).

This is not a “write one pipeline and move on” role. This is “build the system that generates pipelines” + own the integrations that feed and consume data.

Why this role

Connecting a new data source currently takes 2-3 months. Your job: make it 5 days. This is a data platform engineering challenge, not a pipeline writing task.

This is the group’s flagship project. The CDP improves how the company works with players across all brands and directly generates revenue through better marketing activation.

The platform is 4 months old, modern stack, zero legacy. But already in production with real traffic, real campaigns, real money. You’re scaling a working system, not prototyping in isolation.

The core challenge is designing a system where adding a new data partner is a configuration. You’ll solve problems across the full spectrum: API design, schema evolution, orchestration patterns, data quality, and delivery to downstream consumers.

Key Responsibilities

• Design and build ingestion pipelines for REST API, database sources, etc., using Python
• Own ETL and Reverse ETL end-to-end, including implementation, deployment, operations, and incident handling.
• Understand how external systems work (casino platforms, ESPs, affiliate tools) to build reliable integrations with them.
• Design DAG patterns: dependency management, partial retry, backfill procedures.
• Implement and maintain authentication flows, token refresh handling, and secrets management.
• Monitor, troubleshoot, and resolve integration issues in production environments.
• Write and maintain automated tests to ensure the reliability and stability of integration services.
• Collaborate closely with Engineering, Product, and Data teams to support platform scalability and operational efficiency.
• Contribute to infrastructure improvements and Infrastructure-as-Code initiatives.
• Write Architecture Decision Records (ADRs) for significant design choices.

Skills & Experience

Must have:

• 6+ years in data engineering.
• Advanced Python: API clients, file processing, schema validation, integration logic.
• Deep Airflow experience: DAG design, dynamic generation, sensors, retry patterns, backfill, pools, connections management.
• dbt (mid+): bronze/silver models, source freshness, tests, materialisation strategy.
• Snowflake (mid): external stages, COPY INTO, storage integration, basic optimisation.
• API integration experience: authentication (OAuth, API keys), pagination, rate limiting, retry with backoff, error classification.
• Proven experience building reusable pipeline frameworks/templates that others use daily.
• Reverse ETL or outbound integration experience: pushed data from the warehouse to external systems.
• Writes clear documentation: architecture decisions, pipeline templates, and onboarding guides for the team.
• CI/CD pipeline design (GitHub Actions).

Nice to have:

• Terraform basics.
• Metadata-driven / config-driven pipeline experience.
• Experience with ESP platforms (DotDigital, SendGrid, Braze, or similar).
• Gambling, marketing, or multi-tenant data platform experience.
• Comfortable using AI coding assistants.

What We Offer

• Competitive salary.
• Fully remote work across Europe.
• Flexible collaboration hours and strong work-life balance.
• The opportunity to work on scalable, business-critical systems and integrations.
• A collaborative culture focused on ownership, innovation, and continuous improvement.

We are looking for an experienced SEO Specialist to launch and scale a content-driven iGaming project — an expert hub focused on casino games and gaming ecosystems. The primary goal is to drive high-quality traffic and convert it into leads for casino brands.

This is not a classic review-based SEO role. The focus is on building a structured, content-led SEO product, including pages around games, mechanics, formats, long-tail keyword clusters, and expert-level content.

WHAT WILL HELP YOU SUCCEED IN THE ROLE:
- 2–3+ years of SEO experience, including at least 1.5 years in iGaming / betting
- Proven experience with content-driven SEO projects
- Strong understanding of site structure, content optimization, and meta data
- Hands-on experience with On-Page and Off-Page SEO (including grey/white/black hat techniques)
- Advanced use of tools such as Google Search Console, Ahrefs / Semrush, Screaming Frog, and analytics platforms
- Understanding of building SEO strategies beyond traditional review sites, satellites, and cross-brand approaches — focusing on expert content hubs

HOW YOU WILL MAKE AN IMPACT:
- Launch the project from scratch, including defining and executing the SEO strategy
- Collect, expand, and cluster semantic core across games, mechanics, and related user intents
- Design and develop site structure: categories, sections, and landing pages
- Build SEO logic for different page types
- Develop and optimize internal linking structure
- Identify growth opportunities through new keyword clusters and page formats
- Work closely with content:
- Prepare detailed briefs for writers
- Use AI tools where applicable for content generation
- Review, edit, and optimize content for SEO and search intent
- Improve structure and performance of existing pages
- Conduct basic SEO audits and create tasks for developers
- Monitor and control implementation of SEO improvements
- Optimize conversion from traffic to casino brand leads
- Perform competitor analysis and identify best practices
- Build and manage backlink profile using various strategies (white/grey/black hat)
- Implement optimizations to improve visibility in LLM-based search results

WHY YOU’LL LOVE IT HERE:
- Flexible working hours and a remote work setup, so you can plan work around your life and not your life around work!
- Unlimited vacation days and paid sick leave—because your rest matters.
- A competitive compensation that truly reflects your skills and expertise.
- Employee referral bonus and gifts to celebrate your special occasions.
- 50% financial support for learning expenses to supercharge your professional growth!
- A positive atmosphere where you always feel respected and truly belong.
- Inspirational team-building activities that turn colleagues into best friends.
- Wellness benefits: We’ll support your sports passions, from yoga classes to gym memberships.
- Co-working space reimbursement to save your nerves from always working from home :)

About the Role

We are a fast-growing, internationally-focused fintech company delivering cutting-edge crypto processing and payment solutions. As we expand our global footprint, we are looking for a driven, results-oriented B2B Sales Manager to join our team.

In this role, you will drive the entire sales cycle—from sourcing high-value outbound leads to closing deals with international B2B clients. You will act as the face of our product, helping businesses seamlessly integrate modern payment infrastructure.

Your Key Responsibilities

• Pipeline Management: Source and qualify inbound (warm/hot) leads, while aggressively driving outbound lead generation via LinkedIn, email, and direct outreach.
• Product Demonstrations: Conduct high-impact product presentations and live demos for prospective B2B clients.
• Deal Closing: Prepare tailored commercial proposals, handle objections, and navigate deals through to closing and client onboarding.
• Cross-Functional Collaboration: Partner closely with internal Legal, Compliance, and Tech teams to ensure smooth onboarding and compliance with industry standards.
• CRM & Reporting: Maintain flawless data hygiene in our CRM, tracking sales metrics and forecasting pipeline growth.

What We Are Looking For

• Experience: 2–3 years or more of proven success in B2B sales, specifically in the FinTech sector—MANDATORY—as well as in cryptocurrencies, payment processing, SaaS, or high-risk sectors.
• Sales Acumen: A deep understanding of sales funnels, modern closing techniques, and a proven track record of handling complex objections.
• Communication: Exceptional verbal and written communication skills with the ability to build rapport quickly.
• Language Skills: English proficiency at an Upper-Intermediate (B2) level or higher (comfortable conducting business correspondence and basic negotiations).
• Soft Skills: High self-organization, accountability, resilience, and a sharp focus on hitting KPIs.

Great-to-Haves (Bonus Points)

• Direct experience selling in crypto/payment processing or working with high-risk verticals (iGaming, Forex, Web3).
• Experience managing international clients across various jurisdictions.
• Strong negotiation skills at the C-level (negotiating with CEOs, COOs, and Heads of Payments).

What We Offer

• Uncapped Earning Potential: A solid base salary coupled with a transparent, performance-driven bonus structure with no ceiling.
• Flexibility: hybrid or in-office work arrangement at the office in Kyiv or Warsaw.
• Global Impact: The opportunity to work with international markets and cutting-edge Web3/FinTech products.
• Career Growth: A clear pathway to advance into a Senior Sales or Head of Sales role as the company scales.

Summary
We’re looking for a hands-on Lead Developer to help build and evolve our next-generation website builder and CMS platform. This role is ideal for someone who enjoys owning complex systems, writing production code, and helping shape technical direction alongside Product and TPM partners.

This is a 60/40 hands-on leadership role — you’ll be building critical features while also guiding design decisions and reviewing work across the team.

This role requires at least 10 years of hands-on experience as a developer, writing code in PHP & Laravel, as well as Team/Tech Lead experience. 

Responsibilities

• Lead development of core platform features across backend and frontend
• Write and review production code (Laravel, PostgreSQL, Angular/TS)
• Own database design and data integrity in a multi-tenant SaaS
• Partner with Product and TPMs to translate requirements into technical solutions
• Debug complex, cross-system issues involving editor state, persistence, and rendering
• Establish and maintain coding standards and architectural patterns
   

Requirements

• Strong backend development experience
• Deep understanding of database design (PostgreSQL preferred)
• Experience working on multi-tenant SaaS systems
• Comfortable working across the stack
• Solid debugging and problem-solving skills
   

Nice to Have

• Experience with CMSs or visual editors
• Familiarity with Angular, React, or similar frameworks
• Experience modernizing or replacing legacy systems

Other

• Fully remote, contract position (full-time, long-term)
• Adequate management, flexible schedule (4 hours overlap with EST time zone required, other hours at your convenience). 
• Steps in the hiring process:

1. Resume review + Intro call;
2. CodeSignal test;
3. Three tech interviews before an offer is extended

Overview 

Come join us as we scale our retail and commerce loyalty platform! PAR Retail is looking for a Senior NodeJS engineer on its expanding product engineering team as we build and grow our Open Commerce enterprise software-as-a-service platform. 

Open Commerce is a technology suite that enables marketing professionals in the fuel & convenience industry to create real-time, hyper-personalized offers and customer interactions across a variety of channels (mobile, web, SMS, and in-person) to drive customer behavior toward a desired goal. 

Our technology bridges financial payment providers, retail fuel pump technology, and customer experience by wrapping low-level standards-compliant integrations with powerful software abstractions on an ultra-modern software platform. Our platform services and applications are built using a broad swath of technologies (Typescript, NodeJS, Ruby, React, and others), interconnected via GraphQL and RabbitMQ, and run in AWS using Terraform, Helm and Kubernetes (via EKS). 

PAR Retail has its headquarters in Philadelphia, Pennsylvania (USA) and leverages a diverse distributed product engineering and operations team across the United States and Ukraine. PAR Retail offers highly competitive compensation and benefits, as well as an engineering-friendly and product-centric culture. On PAR Retail’s Open Commerce team, we embrace a deeply collaborative software product development process where engineering, design, and product collaborate to shape and ship new functionality. 

Successful candidates will enjoy PAR Retail’s friendly and flexible culture, and embrace our relentless drive to excellence and goal of providing the #1 retail marketing platform in the fuel & convenience industry and beyond. 

Responsibilities 

• Working with the team, design and implement new functionality based on product objectives and requirements. 
• Work with the broader product engineering team to plan and coordinate feature and functionality improvements, as well as resolve bugs and execute technical enhancements, that cross-cut large parts of our platform. 
• Work to continually learn, improve technology skills, expand knowledge of the Open Commerce platform technologies, and gain increasing versatility across the breadth of our platform systems. 
• Expand APIs and business logic, and as needed write or revise customer-facing API documentation. 
• Work with our infrastructure team to enable and enhance highly-available, performant, and well-instrumented backend applications and services that run in our customer environments at substantial scale. 

• Support operations and infrastructure teams for issue resolution on relevant Open Commerce applications or services running in production environments. 

   

Qualifications 

• Practical experience building systems in Node.js 
• At least 5 years industry experience or equivalent 
• Experience building and maintaining backend APIs, including design, implementation, evolution, and maintenance 
• Familiarity with TypeScript, or similar modern strongly-typed language 
• Proficiency using both relational and non-relational database technologies 
• Strong understanding and familiarity with CI/CD pipelines and automated testing 
• Basic knowledge Docker and Kubernetes 
• Familiarity with OAuth and JWT 
• Some experience with front-end JS technologies, esp. React or Angular 
• An ability to work in service-based architectures 
• Highly independent and able to effectively self-organize and prioritize work 
• The ability to write clean code, and the discipline to write effective automated unit tests in order to deliver high-quality system improvements 
• An ability to effectively break down larger bodies of work for delivery as a series of small, self-contained changes to the system 
• Excellent spoken and written communication skills 

• BS/MS degree in Computer Science, Engineering, or equivalent years of professional working experience 

   

Bonus Points 

• Experience with Nest.js and/or GraphQL 
• Experience with Ruby on Rails 
• Experience with AWS 
• Experience working in distributed teams 

• Experience in the retail and/or fuel & convenience industries 

   

PAR Retail Offers:

- Long-term employment;

- Competitive compensation with regular performance-based salary and career development reviews;

- Paid vacations and sick leaves;

- Health insurance program;

- Flexible working hours;

- Sponsored company educational program, corporate library;

- Funny celebrations, team outings, and company events;

- A unique and friendly environment where everyone can explore and learn new technologies.

We are looking for CMO for our new client in iGaming domain to drive sustainable business growth in the region through a strong marketing strategy, scalable user acquisition, increased brand awareness, and optimized unit economics, taking into account local market specifics.

Company: Under NDA
Location: Remote

Schedule: Fulltime

Domain: iGaming 

Start: ASAP 

English: Fluent 

Key Responsibilities:

Develop and execute a regional marketing strategy focused on revenue growth and market share expansion.

Own and manage all acquisition channels: performance, affiliate, influencer, CRM, brand, and others.

Optimize the full marketing funnel: awareness → acquisition → onboarding → retention → LTV.

Analyze channel performance (ROI, CAC, LTV, NGR, GGR) and reallocate budgets accordingly.

Launch and scale marketing campaigns adapted to local market specifics (creatives, offers, channels).

Build and manage partnerships with affiliates, influencers, media buying teams, and vendors.

Lead and develop the regional marketing team.

Balance growth initiatives with strong unit economics to ensure sustainable profitability.

You have: 

Proven experience as CMO or Regional Marketing Lead in digital, tech, fintech, or similar industries.

Strong expertise in performance marketing and user acquisition at scale.

Hands-on experience managing marketing budgets and P&L responsibility.

Deep analytical mindset with practical experience working with ROI, CAC, LTV, NGR, and GGR.

Experience scaling marketing across multiple regions with local adaptation strategies.

Strong leadership and team management skills.

Strategic thinker with a hands-on, execution-driven approach.

🧩 About the Role

ConversionRate.Store is seeking a proactive and detail-oriented Project Manager. This role is perfect for you if you have a solid background in digital marketing and love working with data to drive results.

You’ll collaborate closely with Analysts, Designers, Developers, and Clients to coordinate tasks, gather insights, and ensure smooth project execution from start to finish.
 

🎯 Key Responsibilities

• Coordinate tasks across cross-functional teams
• Collect and organize project-related data and documentation
• Support client communication and ensure timely updates
• Help prepare structured presentations and reports
• Monitor project timelines and deliverables
   

🧠 Required Skills & Knowledge

• Experience in digital marketing, eCommerce, or related fields
• Understanding of digital sales funnels for eCommerce, SaaS, and mobile apps
• Familiarity with traffic sources, acquisition channels, and their impact on conversion rates
• Basic knowledge of web analytics tools and data tracking (e.g., Google Analytics)
• Awareness of web page structure and elements that influence user behavior
• Understanding of A/B testing principles and execution
• Ability to create clear, well-organized presentations (Google Slides, PowerPoint, etc.)
   

🌟 What We Value

• Strong organizational and communication skills
• Attention to detail and a proactive mindset
• Ability to work independently and in a fast-paced environment
• Curiosity and willingness to learn from data and experimentation

🧩 Why Join СonversionRate.Store?

— Directly Impact Millions

At ConversionRate.Store, your work will directly impact the experience of around 50 million monthly users for multiple clients. We have significantly improved the performance of the leading eCommerce and product companies in Ukraine but our core market is the US, Western Europe and Australia. Our clients include some of the world’s most recognizable brands, NASDAQ-listed companies, and unicorns valued at over $1 billion. We partner with successful and ethical businesses, including eCommerce stores, SaaS products, web/mobile applications, and lead generation funnels. We do not work with businesses that fail to contribute positively to sustainable development, such as online casinos, betting, porn, and forex.

— 100% data-driven culture

We make no decisions without solid data backing them up. Every hypothesis you develop will be A/B tested, and you’ll see the results firsthand. Our data engineers work closely with clients to ensure we have reliable data to base our CRO/UXO hypotheses on. We don’t accept hypotheses based solely on vision, opinion, or experience. Instead, we combine insights and best practices with data to deliver the highest-quality results.

— Ownership

Take charge of overall funnel optimization and lead cross-functional teams to implement and manage growth initiatives for our clients.

— Competitive salary

 

🧩 About СonversionRate.Store

Our mission is to improve the conversion rates for companies that positively impact hundreds of millions of users.

We worked with Microsoft, and two more NASDAQ-listed clients, and contributed to the growth of numerous famous startups and unicorns.
Join one of the world’s leading teams in Conversion Rate Optimization (CRO) and User Experience Optimization (UXO), consistently rated among the best globally by Clutch.co and the main CRO agency awards.

You will be working alongside top industry professionals, learning from the best and positioning yourself among the top 1% of all CRO/UXO experts. See if you can become part of the leading CRO/UXO consulting company ConversionRate.Store

We are building a team of passionate professionals inspired by DevOps.
Here, you’ll find a healthy, supportive environment where you’ll have everything you need to grow, evolve, and reach your full potential as a specialist.
 

We’re looking for a DevOps Engineer to join our team and work on a range of exciting international projects.
 

Requirements:

• 2+ years of relevant industry experience
• Hands-on experience building and supporting cloud-based infrastructure
• Strong knowledge of IaC, Docker, Kubernetes, and AWS (mandatory)
• Practical experience with Terraform (developing and maintaining projects)
• Proficiency in one or more server-side scripting languages: Golang, Python, JavaScript, or Bash
• Experience setting up monitoring, logging, and alerting solutions
• Understanding of security hardening practices
• English level: Upper-Intermediate or higher
   

Key Responsibilities:

• Develop and maintain cloud and/or self-hosted infrastructure
• Build and optimize CI/CD pipelines
• Set up and maintain monitoring, logging, tracing, and alerting systems
• Conduct infrastructure audits and analysis
• Perform security hardening of infrastructure and supply chain
• Design and implement automation tools and frameworks for CI/CD
   

What We Offer:

• Professional growth opportunities: mentorship program, tech talks, training sessions, internal knowledge sharing, personalized IDPs, and dedicated self-education time during work hours
• Flexible working hours (start your day between 8–11 AM, depending on your meetings) and the option to work remotely
• Direct communication with founders (who are also DevOps engineers) for career discussions and income reviews
• Corporate events and team-building activities
• Paid time off: 20 vacation days, 10 sick days, plus Ukrainian public holidays
• Kudos reward system with corporate coins and a branded souvenir shop
• PE accounting and legal support
• Special anniversary gifts to celebrate milestones
   

Recruitment Process:

1. HR Interview – up to 45 minutes (Zoom)
2. Test Assignment – up to 2 days to complete
3. Technical Interview – up to 1.5 hour (Zoom)
4. Culture fit Meeting – up to 45 minutes (Zoom)

Cosmolot is a Ukrainian product IT company that creates and develops an online digital entertainment platform. We build technology-driven solutions with a strong focus on security, transparency, and user comfort.

As a Senior Data Analyst, you will drive data-informed decision-making across product, marketing, and business domains. You will work closely with stakeholders, uncover actionable insights, influence strategic decisions, and help shape the analytical infrastructure and processes within the company.

Requirements

• 4+ years of experience as a Product/Data Analyst or in a similar role
• Strong practical knowledge of SQL (CTEs, window functions) and Excel
• Practical experience with BI tools (Power BI or similar)
• Ability to work with large datasets and collect, organize, and analyze large volumes of data
• Strong analytical thinking and attention to detail
• Strong communication and collaboration skills, with the ability to clearly present insights to business stakeholders
• Ability to work independently in a dynamic environment 

Your Responsibilities

• Analyze player behavior, product, and marketing metrics to support business decisions  
  Perform ad-hoc and exploratory analysis based on business requests
• Identify trends, patterns, and key drivers behind metric changes
  Participate in A/B test analysis and product hypothesis validation
  Work with large datasets using SQL and optimize analytical queries 
• Collect, prepare, and validate data from multiple sources for analysis and reporting 
  Build and maintain analytical reports and dashboards in Power BI
• Collaborate with business teams (Product, Marketing, CRM) on data requirements and analytical insights 

Nice to Have

• Experience in iGaming, traffic analytics, or other product verticals
• Experience using Python for data analysis and forecasting

What We Offer

• Work in a strong team of professionals and genuinely supportive people
• Opportunities for professional growth and development
• Flexible working hours
• Medical insurance
• Sports expense compensation
• Psychological support
• Free language classes (English, Spanish, and German)
• 18 working days of paid vacation, paid sick leave, and sick days
• Regular team buildings and corporate events
• All necessary equipment for comfortable work

We are looking for a Computer Vision Engineer with a solid foundation in classical computer vision and hands-on experience implementing low-level CV algorithms. The ideal candidate will have exposure to SLAM, Visual-Inertial Odometry (VIO), and sensor fusion, with responsibilities adjusted according to experience level.

Responsibilities: 

• Design, implement, and optimize classical CV algorithms independently
• Develop and maintain components of SLAM/VIO pipelines
• Contribute to sensor fusion modules involving visual and inertial data
• Lead experiments, evaluate model performance, and propose improvements
• Review research papers and translate findings into practical solutions
• Collaborate across teams to ensure smooth integration of CV components.

Required Qualifications:

• Strong practical experience with classical CV and geometric vision
• Hands-on experience developing components of SLAM and/or VIO systems
• Proficiency in C++ and confident working in Linux environments
• Solid understanding of multi-sensor systems and data fusion
• Proven ability to prototype, benchmark, and optimize CV algorithms
• Ability to analyze research papers and implement state-of-the-art methods.

Nice to Have:

• Experience with Python
• Knowledge of neural networks and CV libraries/frameworks (OpenCV, NumPy, PyTorch, ONNX, Eigen, etc.)
• Experience with sensor fusion techniques
• Familiarity with embedded or real-time systems