Nubank

Senior Staff Machine Learning Scientist

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The Senior Staff Machine Learning Scientist will be responsible for driving the Marketplace Business Unit, focusing on the main page and shopping tab experiences within the app. This involves creating a simple and user-friendly purchase journey through product and service recommendations. The role requires strong problem-solving and coding skills, expertise in applying ML methodologies, and experience working with multi-functional teams. The scientist will also contribute to confidential projects in related areas, leveraging Nubank's datasets and optimization techniques to build scalable and reliable ranking and recommendation systems. This includes translating vague business problems into ML formulations, identifying features and model structures, and delivering business impact.

Senior/Staff Software Engineer (CUDA Expert)

<div>About Us -&nbsp; Nubank is the world’s largest digital banking platform outside of Asia, serving over 110 million+ customers across Brazil, Mexico, and Colombia. Our company has been leading an industry transformation by leveraging data and proprietary technology to develop innovative products and services. Guided by its mission to fight complexity and empower people, Nu caters to customers’ complete financial journey, promoting financial access and advancement with responsible lending and transparency. The company is powered by an efficient and scalable business model that combines low cost to serve with growing returns. Nu’s impact has been recognized in multiple awards, including Time 100 Companies, Fast Company’s Most Innovative Companies, and Forbes World’s Best Banks. For more information, visit our institutional page:<a href="https://international.nubank.com.br/careers/"> https://international.nubank.com.br/careers/</a> About the role The Marketplace Business Unit at Nubank owns the main page and shopping tab experiences within the app, aiming to create an incredibly simple and lovable purchase journey powered by assertive product and service recommendations, representing a massive impact area and critical initiative for the rapidly growing organization. To achieve this, the Marketplace ML Team employs a state-of-the-art, ML-driven algorithmic approach, leveraging Nubank's extensive datasets and optimization techniques to build scalable and reliable shopping intelligence ranking and recommendation systems; this team seeks individuals with strong problem-solving and coding skills, a history of learning and growth, and a deep interest in ML model, feature, and infrastructure.&nbsp; We are seeking a Senior Staff ML Engineer/Scientist to drive this entire area in partnership with the GM for this vertical. In addition to this product area, you will also contribute to additional confidential 0-1 projects in related areas.&nbsp; Basic Qualifications ---- - Bachelor's degree in Computer Science, Engineering, Mathematics or related field - 6+ years of experience in software engineering with an emphasis on ML, Deep Learning, and online experimentation - Strong problem-solving skills, with expertise applying ML methodologies to the recommendations and personalization domains.&nbsp; - Experience working with multiple multi-functional teams (product, science, product ops etc). - Expertise in one or more object-oriented programming languages (e.g. Python, Go, Java, Clojure). - Working knowledge of latest ML technologies, and libraries, such as PyTorch, TensorFlow, Ray, etc. - Proven track records of being a fast learner and go-getter, with willingness to get out of the comfort zone. Preferred Qualifications ---- - 10+ years of experience in ML and building ML models - Experience in designing and crafting scalable, reliable, maintainable and reusable ML solutions using deep-learning techniques and statistical methods. - Experience with building ranking and recommendation systems in production, making practical tradeoffs among algorithm sophistication, compute complexity, maintainability, and extensibility in production environments. - Experience with taking on vague business problems, translating them into ML + Optimization formulation, identifying the right features, model structure and optimization constraints, and delivering business impact. - Experience owning and delivering a technically challenging, multi-quarter project end to end. - 3+ years of experience working in a cross-functional and/or cross-business projects, partnering with Product, Scientists, and cross-org leads to shape the team's strategies - Passionate about helping junior members grow by inspiring and mentoring engineers <h3>Our Benefits</h3> <ul> <li>Remote work, with quarterly trips to sunny Sao Paulo to build relationships with coworkers.&nbsp;</li> <li>Top Tier Medical Insurance</li> <li>Top Tier Dental and Vision Insurance</li> <li>20 days time off, 14 company holidays, and great culture that emphasizes work life balance.&nbsp;</li> <li>Life Insurance and AD&amp;D</li> <li>Extended maternity and paternity leaves&nbsp;</li> <li>Nucleo - Our learning platform of courses</li> <li>NuLanguage - Our language learning program</li> <li>NuCare - Our mental health and wellness assistance program</li> <li>Extended maternity and paternity leaves&nbsp;</li> <li>401K</li> <li>Saving Plans - Health Saving Account and Flexible Spending Account</li> </ul> #LI-Remote &nbsp;</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! 📋 &nbsp;- 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 - Average time to complete: 7 to 10 minutes

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. - 10 Multiple Choice questions - Average time to complete: 7 to 10 minutes

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. - 10 Multiple Choice questions - Average time to complete: 7 to 10 minutes

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. - 9 questions: 9 Multiple Choice - Minimum score needed to qualify: 80% - Average time to complete: 5 to 10 minutes

Canonical

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This role is for Linux Devices Software Engineers at Canonical, focusing on low-level system technology for autonomous devices. The responsibilities include working with the latest Linux kernel and open source technologies, delivering Ubuntu for the latest IoT and server-class hardware platforms, integrating and maintaining device-oriented software stacks, writing high-quality code, collaborating with global teams, and contributing to technical documentation. The job involves optimizing the Ubuntu kernel, debugging issues, and participating in complex customer engagements. This role offers an opportunity to engage with the broader open source community and contribute to Ubuntu and Ubuntu Core across various devices. The candidate is expected to make significant contributions through high-quality design and code, and to develop their technical leadership.

Explore gaming industy jobs in one of the leading Game Studios.

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This role is one of our general tracks. Apply here for all engineering teams at Canonical who work on low-level system technology on autonomous devices across all seniority levels. We hire careful and conscientious engineers who appreciate the challenge of memory, performance, battery and connectivity constrained code that has to work every time in an unreliable and unforgiving world, on x86, ARM or RISC-V silicon. Canonical Ubuntu is the leading Linux for software engineers, desktops, cloud and IoT. We bring open source to the world as a high-performance, safe and secure platform for enterprise computing, software engineering, and connected devices. These smart, connected devices have the potential to transform every industry. Classic Ubuntu – desktop or server – is widely used in embedded systems because of its developer focus and enterprise grade security maintenance. We partner with the world's most prominent silicon companies to optimise Ubuntu on their latest and greatest chips, as well as with major OEMs and ODMs (PC, servers and connected device manufacturers) to ensure that Ubuntu works perfectly on their hardware. But while classic, ‘deb’ based Ubuntu is ideal for developers, it has too much variability for appliance or connected device environments, where you want to know *exactly* what the state of millions or billions of devices might be. So Canonical builds Ubuntu Core, a fully containerised version of Ubuntu that is mathematically precise and rigorously secure. We are working on additional solutions for even smaller devices. We have several teams that focus on open source for embedded environments. We hire outstanding Linux software engineers with a passion for open source, innovation, cutting-edge hardware and software technologies in general. You will be expected to make significant contributions through high-quality design and code, and to develop your technical leadership. These roles include: <ul> <li>Ubuntu Core and snapd software development&nbsp;</li> <li>Silicon software and optimisation engineers&nbsp;</li> <li>Kernel driver and hardware enablement engineers&nbsp;</li> <li>Hardware-centric Linux QA Engineers&nbsp;</li> <li>Hardware Certification Engineers&nbsp;</li> <li>Robotics engineers&nbsp;</li> <li>Industrial IoT software engineers&nbsp;</li> <li>Networking software engineers (switching, routing, access and SmartNICs)</li> </ul> At Canonical you will have the opportunity to engage with the broader open source community. We're looking for individuals who can help build a thriving community, contribute to a broad range of technologies, and contribute to the deployment of Ubuntu and Ubuntu Core across the widest range of devices. Location: we have remote roles open in every time zone. <h2>What your day will look like</h2> Based on the first round of interviews we identify specific teams where you might be an excellent fit, and conduct second round interviews with those teams. Our engineers: <ul> <li>Work with the latest Linux kernel and open source technologies</li> <li>Deliver Ubuntu for the latest IoT and server-class hardware platforms</li> <li>Integrate and maintain device-oriented software stacks</li> <li>Write high-quality, well-designed software</li> <li>Collaborate proactively with other globally distributed teams&nbsp;</li> <li>Display technical leadership internally and within our external communities&nbsp;</li> <li>Help our customers ship their apps and SDKs on Ubuntu</li> <li>Build device OS images with Ubuntu Core, Desktop and Server</li> <li>Optimise the Ubuntu kernel and libraries for silicon-specific capabilities&nbsp;</li> <li>Debug issues and produce high-quality code to fix them&nbsp;</li> <li>Contribute to technical documentation to make it the best of its kind&nbsp;</li> <li>Discuss ideas and collaborate on finding good solutions&nbsp;</li> <li>Participate as technical lead on complex customer engagements involving complete system architectures from cloud to edge&nbsp;</li> <li>Work usually from home, with global travel 2 to 4 weeks for company events&nbsp;</li> </ul> <h2>What we are looking for in you</h2> <ul> <li>An exceptional academic track record from both high school and university</li> <li>Drive and a track record of going above-and-beyond expectations</li> <li>Undergraduate degree in Computer Science or STEM, or a compelling narrative about your alternative path</li> <li>Experience with Linux (Debian or Ubuntu preferred)&nbsp;</li> <li>Passion for Linux or embedded systems software (e.g. kernel, graphics, Yocto)&nbsp;</li> <li>Fluency in at least one of Golang, C, C++, or Rust&nbsp;</li> <li>Professional written and spoken English&nbsp;</li> <li>Excellent interpersonal skills, curiosity, flexibility, and accountability&nbsp;</li> <li>Passion, thoughtfulness, and self-motivation&nbsp;</li> <li>Excellent communication and presentation skills&nbsp;</li> <li>Result-oriented, with a personal drive to meet commitments&nbsp;</li> <li>Ability to travel twice a year, for company events up to two weeks each</li> </ul> <h2>Additional skills that you might also bring</h2> <ul> <li>Experience with Debian/Ubuntu or other distro packaging&nbsp;</li> <li>Understanding of build systems and toolchains, including for cross-compilation&nbsp;</li> <li>Experience with firmware, uboot, UEFI, ACPI, DSDT, or boot loaders</li> <li>Experience with power management on PCI ASPM, SATA ALPM, low power profiles&nbsp;</li> <li>Computer architecture knowledge of x86, ARM, RISC-V&nbsp;</li> <li>Experience in board design, bring up, and validation&nbsp;</li> <li>Experience with electrical engineering design tools (e.g. schematic capture, layout)&nbsp;</li> <li>Familiarity with Ubuntu development model</li> <li>Performance engineering and security experience&nbsp;</li> <li>Shell or Python scripting skills&nbsp;</li> </ul> <h2>What we offer you</h2> We consider geographical location, experience, and performance in shaping compensation worldwide. We revisit compensation annually (and more often for graduates and associates) to ensure we recognise outstanding performance. In addition to base pay, we offer a performance-driven annual bonus. We provide all team members with additional benefits, which reflect our values and ideals. We balance our programs to meet local needs and ensure fairness globally. <ul> <li>Distributed work environment with twice-yearly team sprints in person</li> <li>Personal learning and development budget of USD 2,000 per year</li> <li>Annual compensation review</li> <li>Recognition rewards</li> <li>Annual holiday leave</li> <li>Maternity and paternity leave</li> <li>Employee Assistance Programme</li> <li>Opportunity to travel to new locations to meet colleagues</li> <li>Priority Pass, and travel upgrades for long haul company events</li> </ul> <h2>About Canonical</h2> Canonical is a pioneering tech firm at the forefront of the global move to open source. As the company that publishes Ubuntu, one of the most important open source projects and the platform for AI, IoT and the cloud, we are changing the world on a daily basis. We recruit on a global basis and set a very high standard for people joining the company. We expect excellence - in order to succeed, we need to be the best at what we do. Canonical has been a remote-first company since its inception in 2004.​ Working here is a step into the future, and will challenge you to think differently, work smarter, learn new skills, and raise your game. <h2>Canonical is an equal opportunity employer</h2> We are proud to foster a workplace free from discrimination. Diversity of experience, perspectives, and background create a better work environment and better products.<a href="https://canonical.com/careers/diversity/identity"> Whatever your identity, we will give your application fair consideration.</a> #LI-remote &nbsp; &nbsp;

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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.