WinLab

Position: ASO Specialist
Location: Warsaw / Kyiv (hybrid format)
Employment Type: Full-time

What You’ll Do:

• Develop, implement, and continuously optimize ASO strategies for our apps in Google Play and the App Store.
• Conduct thorough keyword research, apply relevant keywords, and regularly update them to improve app rankings.
• Create and A/B test metadata (titles, descriptions, screenshots, icons) to improve conversion rates and user engagement.
• Monitor and analyze key ASO metrics: installs, conversions, visibility, and rankings.
• Stay on top of market trends, competitors, and app store algorithms to refine our approach.
• Prepare reports and insights with actionable recommendations for performance improvement.
• Collaborate with marketing, analytics, and product teams to align ASO efforts with overall business goals.
   

What We’re Looking For:

• 1.5+ years of ASO experience, preferably in the gambling or iGaming industry.
• Strong proficiency in ASO tools (Sensor Tower, App Annie, Mobile Action, etc.).
• Solid understanding of app store algorithms and ranking factors.
• Proven track record of boosting app visibility and organic installs.
• Analytical mindset and the ability to turn data into actionable insights.
• Experience with Google Play and App Store optimization processes.
• Strong communication skills and a collaborative attitude.
   

Nice to Have:

• Background in the gambling or iGaming industry.
• Knowledge of user acquisition strategies and the mobile marketing funnel.
• Experience with analytics tools (e.g., Firebase, Appsflyer).
• Familiarity with A/B testing methods for app store assets.

Role Summary: The 2D VFX Animator will be instrumental in conceptualizing and executing advanced visual effects that not only embellish but fundamentally enhance the player's experience with our slot games. Collaborating closely with a cross-disciplinary team, the role demands a blend of creative flair and technical prowess, ensuring that all VFX assets are optimized and aligned with the overarching game theme and mechanics. 

     Core Responsibilities: 

• Design, develop, and deliver sophisticated 2D visual effects tailored for slot game applications, utilizing industry-standard software and methodologies. 
• Engage in rigorous R&D to conceptualize VFX that complement game narratives, mechanics, and UI/UX design principles.
• Perform technical optimizations of VFX assets to ensure seamless performance across diverse hardware platforms. 
• Integrate visual effects within game engines, adhering to best practices in asset implementation and version control workflows. 
• Conduct iterative refinements based on team feedback and user testing data, employing a data-driven approach to VFX adjustments. 
• Maintain abreast of emerging trends and technologies in game development and visual effects, with a focus on applications within the slot gaming sector. 
• Contribute to all phases of the game development lifecycle, offering technical expertise and creative insights to enhance game quality and player engagement. 
  
  Qualifications: 
• Demonstrable expertise in 2D VFX animation, specifically within the slot game domain, evidenced by a comprehensive portfolio. 
• Mastery of VFX creation tools such as Adobe After Effects, Photoshop, and Spine, with an emphasis on efficiency and quality in asset production. 
• Prior experience in a game development studio environment, with a deep understanding of the game production cycle, particularly in the context of slot games. 
• Strong foundation in animation principles, graphic design, and digital art, coupled with a capacity for creative problem-solving. 
• Proficient in game engine technologies and VFX integration techniques, with familiarity in scripting and automation processes beneficial. 
• Exceptional communication skills, both verbal and written, facilitating effective collaboration in a multidisciplinary team setting.

Responsibilities

-

Generate and formalize slot concepts: theme, core loop, feature set (free spins, bonus

buy, hold-&-spin, jackpots, crash mechanics, etc.) tailored to target audiences and

regions.

-

Perform market and competitor analysis (Pragmatic Play, Play’n GO, NetEnt, BTG,

Hacksaw, etc.), create teardown reports, and justify which ideas to adapt or enhance.

-

Develop and maintain GDD/TDD: clear requirements for art, dev, and QA teams, feature

prioritization, MVP scope.

-

Together with mathematicians, define target RTP, volatility, hit frequency, and max win;

ensure compliance with regulators (MGA, UKGC, etc.) and responsible-gaming

guidelines.

-

Evaluate business potential: forecast GGR, LTV, ROI for features and craft data-driven

product hypotheses.

-

Coordinate the cross-functional team (art, code, math, QA): synchronize roadmaps, run

product reviews, and make key decisions.

-

After release, analyze KPIs (Bet size, Session length, Retention, GGR/NGR) and initiate

improvements based on data and player feedback.

Requirements

-

2+ years in RMG or F2P slot development as a game designer, producer, or product

manager.

-

Deep understanding of slot mechanics, certification requirements, and

responsible-gaming practices.

-

Ability to translate analytics and business goals into precise feature and UX

requirements.

-

Proven experience preparing full design docs and guiding a product through all SDLC

stages.

-

Strong competitive-analysis and product-analytics skills.

-

Ukrainian or Russian/English B2 or higher (industry communication and documentation).

Nice to have

-

A released slot with GGR > $1 M within the first 90 days.

-

Leverage generative-AI tools (Midjourney, DALL·E, Stable Diffusion, etc.) to rapidly

produce high-impact visual concepts and collages that clearly communicate slot themes,

feature flows, and mood boards to the team

We’re looking for a strong back-end engineer with a passion for probability, discrete-event

systems and casino math. You’ll own the server-side logic for brand-new video-slot titles

featuring custom mechanics and switchable volatility profiles (medium / high). Working

alongside game designers and front-end teams, you’ll transform design docs into fully

simulated, production-ready slot engines, complete with optimisation pipelines and S3

deployment.

What you’ll do

-

Design and implement novel slot mechanics (e.g., 8×8/dynamic boards, unique win

conditions, dual reel sets for volatility switching, split/ways/transition mechanics, etc ).

-

Extend a Python-based math framework: build config files, reel-strip loaders, payout

tables, win evaluators, cascading/tumbling logic, free-spin rounds and wallet managers.

-

Emit well-structured JSON events for the client SDK (spins, wins, multipliers, feature

triggers, volatility toggles, etc.).

-

Create simulation runs (millions of rounds) to verify RTP, hit-rates, max-win distribution

and other KPIs.

-

Tune win distributions with a companion optimisation tool (Rust binary) and produce

balanced lookup tables.

-

Package output assets (books, lookup tables, configs) and automate uploads to AWS

S3.

-

Collaborate with front-end and QA to validate event schemas and gameplay flow.

-

Write clear docs and contribute sample games to our internal knowledge base.

Must-have experience

-

3 + years professional Python (async/multithreading, typing, testing).

-

Strong applied probability / statistics; comfortable deriving RTP, volatility, hit-rate,

max-exposure.

-

Previous work on slot, RNG or other real-money game logic.

-

Deep understanding of state machines, event-driven architecture and JSON

serialization.

-

Competence with Pandas / NumPy for simulation analysis and Matplotlib (or similar) for

visual checks.

-

Experience generating and processing large simulation datasets (GB-scale).

-

Version control (Git) and CI basics; able to ship production code that passes review.

-

Fluent English; able to translate game-design language into deterministic algorithms.

Nice to have

-

Exposure to high-performance algorithms.

-

AWS SDK (boto3) and S3 workflows; knowledge of object hashing / SHA verification.

-

Familiarity with lookup-table–based game balancing.

-

Experience with Zstandard or similar fast compression formats.

Responsibilities

-

Generate and formalize slot concepts: theme, core loop, feature set (free spins, bonus

buy, hold-&-spin, jackpots, crash mechanics, etc.) tailored to target audiences and

regions.

-

Perform market and competitor analysis (Pragmatic Play, Play’n GO, NetEnt, BTG,

Hacksaw, etc.), create teardown reports, and justify which ideas to adapt or enhance.

-

Develop and maintain GDD/TDD: clear requirements for art, dev, and QA teams, feature

prioritization, MVP scope.

-

Together with mathematicians, define target RTP, volatility, hit frequency, and max win;

ensure compliance with regulators (MGA, UKGC, etc.) and responsible-gaming

guidelines.

-

Evaluate business potential: forecast GGR, LTV, ROI for features and craft data-driven

product hypotheses.

-

Coordinate the cross-functional team (art, code, math, QA): synchronize roadmaps, run

product reviews, and make key decisions.

-

After release, analyze KPIs (Bet size, Session length, Retention, GGR/NGR) and initiate

improvements based on data and player feedback.

Requirements

-

2+ years in RMG or F2P slot development as a game designer, producer, or product

manager.

-

Deep understanding of slot mechanics, certification requirements, and

responsible-gaming practices.

-

Ability to translate analytics and business goals into precise feature and UX

requirements.

-

Proven experience preparing full design docs and guiding a product through all SDLC

stages.

-

Strong competitive-analysis and product-analytics skills.

-

Ukrainian or Russian/English B2 or higher (industry communication and documentation).

Nice to have

-

A released slot with GGR > $1 M within the first 90 days.

-

Leverage generative-AI tools (Midjourney, DALL·E, Stable Diffusion, etc.) to rapidly

produce high-impact visual concepts and collages that clearly communicate slot themes,

feature flows, and mood boards to the team

Role Summary: The 2D VFX Animator will be instrumental in conceptualizing and executing advanced visual effects that not only embellish but fundamentally enhance the player's experience with our slot games. Collaborating closely with a cross-disciplinary team, the role demands a blend of creative flair and technical prowess, ensuring that all VFX assets are optimized and aligned with the overarching game theme and mechanics. 

     Core Responsibilities: 

• Design, develop, and deliver sophisticated 2D visual effects tailored for slot game applications, utilizing industry-standard software and methodologies. 
• Engage in rigorous R&D to conceptualize VFX that complement game narratives, mechanics, and UI/UX design principles.
• Perform technical optimizations of VFX assets to ensure seamless performance across diverse hardware platforms. 
• Integrate visual effects within game engines, adhering to best practices in asset implementation and version control workflows. 
• Conduct iterative refinements based on team feedback and user testing data, employing a data-driven approach to VFX adjustments. 
• Maintain abreast of emerging trends and technologies in game development and visual effects, with a focus on applications within the slot gaming sector. 
• Contribute to all phases of the game development lifecycle, offering technical expertise and creative insights to enhance game quality and player engagement. 
  
  Qualifications: 
• Demonstrable expertise in 2D VFX animation, specifically within the slot game domain, evidenced by a comprehensive portfolio. 
• Mastery of VFX creation tools such as Adobe After Effects, Photoshop, and Spine, with an emphasis on efficiency and quality in asset production. 
• Prior experience in a game development studio environment, with a deep understanding of the game production cycle, particularly in the context of slot games. 
• Strong foundation in animation principles, graphic design, and digital art, coupled with a capacity for creative problem-solving. 
• Proficient in game engine technologies and VFX integration techniques, with familiarity in scripting and automation processes beneficial. 
• Exceptional communication skills, both verbal and written, facilitating effective collaboration in a multidisciplinary team setting.

🎮 Senior Game Developer (PixiJS / Slot Games)

Location: Remote
Type: Full-time
 

We're looking for a Senior Game Developer with strong expertise in PixiJS to help us craft visually stunning and technically polished slot games. You’ll play a key role in bridging development and animation, shaping every detail of the player’s experience.
 

🧩 What You’ll Do:

• Develop HTML5 slot games from scratch using JavaScript/TypeScript and PixiJS.
• Create and integrate custom visual effects and animations in close collaboration with artists and animators.
• Optimize game performance to ensure smooth gameplay across various platforms and devices.
• Contribute to architectural decisions and code reviews.
• Mentor junior developers and support their professional growth.
   

🛠 What We’re Looking For:

• 5+ years of experience in HTML5 game development, ideally in slot games.
• Strong hands-on expertise with PixiJS, including scene creation, object animation, layering, masking, and filters.
• Solid knowledge of JavaScript/TypeScript, HTML5, and CSS3.
• Understanding of rendering loops and performance optimization techniques.
• Proven experience working closely with 2D artists and animators.
• A strong portfolio showcasing completed projects — especially slot games and custom visual effects (required).
   

✨ Nice to Have:

• Experience with Spine or DragonBones.
• Familiarity with game engines or frameworks like Phaser.
• Skills in mobile optimization and asset management.

📊 Position: Financial Analyst / Data Analyst
 

Who are we looking for?
We're looking for someone who is genuinely interested in working with data and understanding its impact on business. You're not just merging spreadsheets — you're uncovering patterns, insights, and growth opportunities.
 

You’re a great fit if you:

• Think logically and systematically.
• Enjoy digging into details and figuring things out independently.
• Take responsibility for results.
• Are truly engaged in the process and see value in your work.
   

What you’ll do:

• Process and analyze financial data: structure, consolidate, and transform it.
• Prepare client reports based on both internal and external data sources.
• Conduct audits and verify data accuracy.
• Handle a variety of analytical requests: sales trends, digital channel performance, and other business-driven tasks.
   

What you should know:

• Excel — confident user: formulas, pivot tables, Power Query.
• Work experience in analytics, finance, marketing, or related fields.
   

Nice to have:

• Skills in Python and/or SQL.
   

What we offer:

• Real analytical challenges that directly impact business — not just spreadsheet work.
• A team that values logic, curiosity, and initiative.
• Flexible schedule and autonomy — we care about outcomes, not just hours.
• Opportunities for professional and financial growth.