<h3 class="ql-align-justify">At Roofstacks, we are not content with simply innovating; we are committed to pushing the frontiers of technology. Since our establishment in 2015, we have skillfully integrated conventional systems with cutting-edge solutions, raising the standard in industries such as tourism, metaverse, AR, gaming, blockchain, and fintech.</h3><p><br></p>

RoofStack

Mobile Developer

Software Developer

Human Resources & Organizational Development Consultant

Backend Developer

Business Analyst

Data Product Owner

Data Product Manager

Frontend Developer

Head of Software Development

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Test your Unity Animations knowledge with this quiz! Explore concepts like Animator Controller, Blend Trees, and many more.

Test your Unity UI knowledge with this quiz! Explore essential concepts like Canvas, EventSystem and many more. 

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Test your understanding of Unity’s Physics, Movement, and MonoBehaviour with this insightful beginner-friendly quiz!

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Test your beginner-level knowledge of Unity platformer development with this engaging quiz.

Test your basic knowledge of Unity and Unreal Engine with this beginner-friendly quiz on game development fundamentals.

This assessment evaluates your understanding of Unity's component-based architecture, how GameObjects and their components interact, the hierarchy system with nested GameObjects, and how to reference them in scripts.

This assessment evaluates your understanding of Unity's NavMesh system, including navigation baking, NavMeshAgents, pathfinding, obstacles, and scripting interactions with NavMesh to create AI-driven movement.

An assessment to test the correct usage of Unity's events and lifecycle functions in the context of the game "Clash Royale"

<p>- This assessment gives us an idea of your C++ skills<br>- Companies that evaluate this skillset in interviews: <strong>Rockstar Games, Ubisoft, Mayhem Studios, etc.</strong><br>- 10 Multiple Choice questions<br>- Average time to complete: <strong>7 to 10 minutes</strong></p>

<p>Let's assess your Data Structures! 📋<br>&nbsp;- This assessment gives us an idea of your problem solving skills using DSA<br>- Companies that evaluate this skillset in interviews: MPL, LILA Games, GSN Games, etc.<br>- 10 Multiple Choice questions<br>- Average time to complete: 7 to 10 minutes</p>

<p>Let's assess your Programming Patterns! 📋</p><p>- This assessment gives us an idea of your code architecture skills<br>- Companies that evaluate this skillset in interviews: Dirtcube, PTW, Playshifu, etc.<br>- 10 Multiple Choice<strong> </strong>questions<br>- Average time to complete: 7<strong> </strong>to 10 minutes</p>

<p>Let's assess your OOPs skills! 📋</p><p>- This assessment gives us an idea of your fundamental OOPS concepts and Solid principles skills<br>- Companies that evaluate this skillset in interviews: Hitwicket, GSN Games, Tomo Club, etc.<br>- 10 Multiple Choice questions<br>- Average time to complete:<strong> </strong>7 to 10 minutes</p>

<p>Let's assess your Unity Skills 📋<br><br>- This assessment gives us an idea of your Unity fundamentals<br>- Companies you can apply for after taking this assessment: Godspeed games, Salvation Games, nCore Games, etc.<br>- 9 questions: 9 Multiple Choice<br>- Minimum score needed to qualify: 80%<br>- Average time to complete: 5 to 10 minutes</p>

31st Union

Senior Concept Artist

DraftKings

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Personal Assistant

As a Senior Concept Artist at 31st Union, you'll play a significant role in shaping the visual direction of Project ETHOS, a free-to-play, 3rd-person rogue-like hero shooter.  You'll collaborate with the character development team, game designers, and stakeholders to conceptualize and iterate on stylized designs.  Responsibilities include creating character concepts, producing high-quality visual assets (from sketches to marketing materials), establishing style guides, driving innovation in workflows, prioritizing art production, and mentoring junior artists.  You'll need expertise in character design, strong drawing and painting skills, proficiency in 2D/3D software, and experience working in collaborative team environments. The role requires translating current visual trends into compelling designs for interactive media and familiarity with game engines and production pipelines.

<p>Established in 2019, 31st Union is a San Francisco Bay Area studio formed with a common purpose of crafting highly engaging entertainment and a commitment to putting fans first. We are an association of diverse game makers driven by a passion for our art and inspired by a culture of inclusivity to build games that thrill players everywhere. We cherish our studio independence and autonomy, and value the collaborative support of our publisher 2K and parent company Take-Two Interactive, one of the world’s leading interactive entertainment companies.</p>

Senior Anti-Cheat Engineer

QA Manager

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Senior Animation Engineer

Senior Test Automation Engineer

Expert UI Engineer

Senior UI Artist

Expert Core Engineer

Core Engineer

<div class="job__description body"><div><p style="text-align: center;"><strong>WE ARE GAMEMAKERS</strong></p>
<p><strong>Who We Are:</strong></p>
<p>We are a diverse team of developers driven by a passion for our art, united by our core values and inspired by a culture of inclusivity to build amazing games that thrill players everywhere. We pursue growth and innovation in an environment of safety and trust. Our culture is built on the belief that the more varied voices in our collective will strengthen our team and our games.&nbsp; We are looking for our next teammate who will raise our bar and make us better.<br><br>We are currently working on Project ETHOS, a new free-to-play, 3rd person rogue-like hero shooter and an exciting evolution on the genre!</p>
<p><strong>Who You Are:</strong></p>
<p>As a Senior Concept Artist at 31st Union, you'll have a significant role in shaping the visual direction for the project.&nbsp; You are a strong and seasoned designer with excellent conceptual art skills and sensibilities.&nbsp; You will be collaborating directly with the character development team and key stakeholders and visual designers to set the look and feel for our project.&nbsp; You will work proactively with others in all visual art disciplines to help provide visual solutions that support gameplay, narrative, and art direction needs.&nbsp; We love games that play well and look great; together we will set the stage for a rich and stunning world filled with diverse characters and environments.</p>
<p><strong>Responsibilities:</strong></p>
<ul>
<li>Collaborate closely with the character development team, game designers, and key stakeholders to conceptualize and iterate on stylized designs that support the overall project vision.</li>
<li>Create character concepts with a strong understanding of artistic style, game design, narrative needs, and technical constraints, including props, weapons, vehicles, and environments as needed.</li>
<li>Produce high-quality visual assets across all development stages—from exploratory sketches to polished marketing materials.</li>
<li>Establish style guides and instructional materials in alignment with art direction, ensuring visual consistency across the art team.</li>
<li>Drive innovation in workflows and pipelines for character-focused conceptual design.</li>
<li>Prioritize, plan, and manage concept art production in collaboration with multidisciplinary teams.</li>
<li>Mentor junior artists to support artistic growth and foster a collaborative creative environment.</li>
</ul>
<p><strong>Required Qualifications:</strong></p>
<ul>
<li>Expertise in character design, with a strong focus on costume, anatomy, and stylization across multiple genres or styles.</li>
<li>Demonstrated ability to produce polished, stylized character illustrations with strong drawing and painting skills that translate effectively to 3D.</li>
<li>Extensive portfolio of character designs that includes inspirational and informative artwork, development sketches, and fully realized designs. Online portfolio required.</li>
<li>High proficiency in industry-standard 2D software (e.g. Photoshop, Illustrator, After Effects) and familiarity with 3D tools (e.g. Maya, ZBrush, 3DS Max).</li>
<li>Ability to work across both 2D and 3D mediums, from early concept sketches to refined marketing pieces.</li>
</ul>
<p><strong>Relevant Experience:</strong></p>
<ul>
<li>Comfortable working in a collaborative team environment, taking direction, and contributing to brainstorming sessions.</li>
<li>Awareness of current visual trends and the ability to translate them into compelling and relevant designs for interactive media.</li>
<li>Experience working within game engines (e.g. Unreal, Unity) and familiarity with production pipelines or custom toolsets.</li>
</ul>
<hr>
<p>The pay range for this position in California at the start of employment is expected to be between $90,000 and $145,000 per year. However, base pay offered is based on market location, and may vary further depending on individualized factors for job candidates, such as job-related knowledge, skills, experience, and other objective business considerations. Subject to those same considerations, the total compensation package for this position may also include other elements, including a bonus and/or equity awards, in addition to a full range of medical, financial, and/or other benefits. Details of participation in these benefit plans will be provided if an employee receives an offer of employment. If hired, employee will be in an 'at-will position' and the company reserves the right to modify base salary (as well as any other discretionary payment or compensation or benefit program) at any time, including for reasons related to individual performance, company or individual department/team performance, and market factors.</p>
<p>SECURITY NOTICE -&nbsp; We have recently been made aware of increasing occurrences of bad actors posing as company HR personnel to gain information from "potential candidates", in the form of job interviews and offers. These scams can be quite sophisticated and appear legitimate.</p>
<p>Please know that 31st Union and 2K never uses instant messaging apps to contact prospective employees or to conduct interviews.</p>
<p>If you believe you have been a victim of such a scam, you may fill out a complaint form at <a href="https://complaint.ic3.gov/">https://complaint.ic3.gov/</a> and <a href="https://reportfraud.ftc.gov/">https://reportfraud.ftc.gov/</a> detailing as much as possible. We are taking these matters very seriously and apologize for any inconvenience.</p>
<p><em>&nbsp;</em></p>
<p>Join our mission: Bring fun, inspiration and awe to our lives and to our community:&nbsp;<a href="https://thirtyfirstunion.com/values">https://thirtyfirstunion.com/values</a></p>
<p>&nbsp;</p>
<p>31st Union prides itself on the diversity of its team members, partners, and communities.&nbsp; For this reason, we remain committed to providing equal employment opportunity in all aspects of the employment relationship, from recruitment and hiring through compensation, benefits, discipline and termination.&nbsp; This means that employment at 31st Union depends on your substantive ability, objective qualifications and work ethic – not on your age, race (including traits historically associated with race, including, but not limited to, hair texture and protective hairstyles), height, weight, religion, creed, color, national origin, ancestry, sex, sexual orientation, gender (including gender identity and expression), alienage or citizenship status, transgender, military or veteran status, physical or mental disability (actual or perceived), medical condition, AIDS/HIV, denial of family and medical care leave, genetic information, predisposition or carrier status, pregnancy status, childbirth, breastfeeding (or related medical conditions), marital status or registered domestic partner status, political activity or affiliation, status as a victim of domestic violence, sexual assault or stalking, arrest record, or taking or requesting statutorily protected leaves, or any other classification protected by federal, state, or local laws.</p>
<p>As an equal opportunity employer, we are also committed to ensuring that qualified individuals with disabilities are provided reasonable accommodation(s) to participate in the job application and/or interview process, to perform their essential job functions, and to receive other benefits and privileges of employment.&nbsp; Please contact us if you need to request a reasonable accommodation.</p>
<p>#LI-Onsite<br>#LI-Hybrid</p></div></div>

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This assessment gives us an idea of your C++ skills- Companies that evaluate this skillset in interviews: Rockstar Games, Ubisoft, Mayhem Studios, etc.- 10 Multiple Choice questions- Average time to complete: 7 to 10 minutes

Let's assess your Data Structures! - This assessment gives us an idea of your problem solving skills using DSA- Companies that evaluate this skillset in interviews: MPL, LILA Games, GSN Games, etc.- 10 Multiple Choice questions

Data Structures and Algorithms

Let's assess your Programming Patterns! ????- This assessment gives us an idea of your code architecture skills- Companies that evaluate this skillset in interviews: Dirtcube, PTW, Playshifu, etc.

Programming Patterns

Let's assess your OOPs skills! ????- This assessment gives us an idea of your fundamental OOPS concepts and Solid principles skills- Companies that evaluate this skillset in interviews: Hitwicket, GSN Games, Tomo Club, etc.

Object Oriented Programming

Let's assess your Unity Skills ????- This assessment gives us an idea of your Unity fundamentals- Companies you can apply for after taking this assessment: Godspeed games, Salvation Games, nCore Games, etc.

Unity Game Engine

Unity Event Functions - Clash Royale

Unity Component System

Unity NavMesh Agent

Game Dev Assessments

Unity and Unreal: Beginner

Unity Platformer: Beginner

Unity Open World: Beginner

Unity: Physics, Movement, MonoBehaviour

Unity: Rigidbody

Unity: Knowing Unity Part 1

Unity: Knowing Unity Part 2

Unity: Knowing Unity Part 3

Unity: Input System

Unity: UI

Unity: Animations

Roof Blockchain seeks a Mobile Developer to contribute to the development and integration of applications for digital asset storage and trading.  Responsibilities include participating in the full development lifecycle, from design to deployment.  The ideal candidate will possess at least 5 years of experience in native iOS or Android development, proficiency in frontend technologies (React.js, Vue.js, or Angular), and expertise in backend integrations and CI/CD processes. Experience with React Native, new product installations, and current frontend development tools is a plus. The role is based in Istanbul and is a full-time position.

Software Architect

<div class="section page-centered" data-qa="job-description"><div>As Roof Stacks, we have been carrying out innovative projects since 2015. We aim to become a global actor in Tourism Systems, Extended Reality(AR/VR), Blockchain Technologies, Game Development, and Financial Technology, which are our areas of expertise. We focus on creating a difference with the technologies we develop and designing the future.</div><div><br></div><div>In addition to our central office in Ataşehir/İstanbul, we have branches in Antalya and Elazığ in Turkey. We have strengthened our position in the global market by opening a new office in Austin, USA, which hosts world technology giants from all over the world.</div><div><br></div><div><b>About the Position:</b></div><div><br></div><div>As a Mobile Developer, to partner in the development process to ensure the development and integration of applications related to the storage and trading of digital assets.</div><div><br></div><div><b>Responsibilities:</b></div><div><br></div><div>To take part in the development and integration of applications related to the storage and trading of digital assets.</div><div><br></div><div><b>Required Qualifications:</b></div><div><br></div><div>*At least 5 years of experience</div><div>*Native IOS or Android development experience,</div><div>*Worked with frontend technologies such as <a href="http://React.Js">React.Js</a>, <a href="http://Vue.Js">Vue.Js</a> or Angular,</div><div>*Experienced in backend integrations,&nbsp;</div><div>*Good command of CI/CD Processes,</div><div>*React Native experience a plus,</div><div>*New product installation experience a plus,</div><div>*Worked with current frontend development tools a plus</div></div>undefinedundefinedundefined