Our mission at Duolingo is to develop the best education in the world and make it universally available. It’s a big mission, and that’s where you come in!

At Duolingo, you’ll join a team that cares about educating our users, experimenting with big ideas, making fact-based decisions, and finding innovative solutions to complex problems. You’ll have limitless learning opportunities and daily collaborations with world-class minds — while doing work that’s both meaningful and fun.

Join our life-changing mission to develop education for our half a billion (and growing!) learners around the world. 

Read our blog to learn more.

About the role...

We’re looking for a Software Engineer I to join our China team. In this role, you’ll build and ship features that drive user growth and deliver high-quality learning experiences to millions of learners in China. You’ll work closely with product managers, designers to create engaging, localized experiences tailored to this market.

This is an opportunity to contribute to a fast-moving, high-impact team focused on one of Duolingo’s most important growth regions. You’ll gain experience working across the stack (backend and client), running experiments, and collaborating cross-functionally to improve key metrics like daily active users (DAU).

🧠  You will...

• Collaborate with product managers and designers to drive user growth in China.
• Work with Government Relations (GR) and cross-functional partners to ensure product compliance in China
• Lead individual project priorities, deadlines, and deliverables
• Contribute to code reviews and collaborate across teams to ensure quality and scalability

✅  You have...

• Graduated or will graduate with a B.S. or M.S. degree in Computer Science or related technical field (i.e. math, physics, or data science) before summer 2026
• 0–1 years of experience programming in one or more of: Java, Python, Kotlin, or Swift
• Dedication to our mission of universally available education
• Relocation to Beijing, China. This position is based in Beijing.

⭐  Exceptional candidates will have...

• A GPA of 3.6+
• A Duolingo streak
• Proficient in both spoken and written English.

Our mission at Duolingo is to develop the best education in the world and make it universally available. It’s a big mission, and that’s where you come in!

At Duolingo, you’ll join a team that cares about finding innovative solutions to complex technical problems, running countless experiments (300+ at a time!) with our massive user base to make data-driven decisions, and educating our users and employees alike. You’ll have limitless learning opportunities, mentorship and collaboration with world-class minds, and a variety of projects with large scopes — while doing work that’s both fun and meaningful. 

Join our life-changing mission to develop education for our half a billion (and growing!) learners around the world.

About the role...

We’re looking for founding members of the newly formed Asia Growth team. Your role will be to improve the Android user experience by leveraging your extensive experience to enhance the performance and efficiency of our Android app. This position offers an exciting opportunity to drive performance improvement initiatives that directly impact user experience and retention. Join us to make a significant impact on Duolingo’s key business metric DAU, worldwide!

🧠  You will...

• Quickly develop native Android application performance optimizations in Kotlin.
• Collaborate closely with cross-functional teams to identify performance bottlenecks and implement solutions.
• Perform experiment analysis on features and find opportunities for optimization.

✅  You have...

• A minimum of 5 years of programming experience in Android development with a strong focus on performance optimization.
• Experience in developing world-class apps with stability, performance, and scalability in mind.
• Demonstrated ability to diagnose and resolve complex performance issues, including memory leaks, UI lag, and slow network responses.
• The ability to communicate technical issues effectively to technical and non-technical stakeholders.
• A desire to make the world a better place through technology and education.
• Ability to apply user insights, data, and statistical analyses to inform decisions.
• A Bachelor’s degree in Computer Science or a related technical field.
• Ability to work from or relocate to Beijing, China.

Our mission at Duolingo is to develop the best education in the world and make it universally available. It’s a big mission, and that’s where you come in!

At Duolingo, you’ll join a team that cares about finding innovative solutions to complex technical problems, running countless experiments (300+ at a time!) with our massive user base to make data-driven decisions, and educating our users and employees alike. You’ll have limitless learning opportunities, mentorship and collaboration with world-class minds, and a variety of projects with large scopes — while doing work that’s both fun and meaningful. 

Join our life-changing mission to develop education for our half a billion (and growing!) learners around the world.

About the role

We’re looking for founding members of the newly formed Asia Growth team. Your role will be to improve the Android user experience by leveraging your extensive experience to enhance the performance and efficiency of our Android app. This position offers an exciting opportunity to drive performance improvement initiatives that directly impact user experience and retention. Join us to make a significant impact on Duolingo’s key business metric DAU, worldwide!

  You will...

• Quickly develop native Android application performance optimizations in Kotlin.
• Collaborate closely with cross-functional teams to identify performance bottlenecks and implement solutions.
• Perform experiment analysis on features and find opportunities for optimization.

  You have...

• A minimum of 5 years of programming experience in Android development with a strong focus on performance optimization.
• Experience in developing world-class apps with stability, performance, and scalability in mind.
• Demonstrated ability to diagnose and resolve complex performance issues, including memory leaks, UI lag, and slow network responses.
• The ability to communicate technical issues effectively to technical and non-technical stakeholders.
• A desire to make the world a better place through technology and education.
• Ability to apply user insights, data, and statistical analyses to inform decisions.
• A Bachelor’s degree in Computer Science or a related technical field.
• Ability to work from or relocate to Beijing, China.

Available Work Location: Shanghai, China 

What you’ll do

You are the technical keystone through the entire sales cycle - pre and post sales. You will work closely with our Enterprise prospects and customers in Greater China region to educate, empower, and ensure their success on the Cloudflare platform. You will leverage your technical expertise in Cloudflare’s global distributed network and technology to find best-fit solutions for prospects, to train and onboard new customers via video-conference, in person, or through documentation, and to support the long-term success of the customer. As an expert on web/mobile security and performance, you are a trusted source for developing new firewall rules from log files, crafting performance caching and delivery strategies, and creating or repurposing internal tools and scripts for customers.

As a Solutions Engineer, you are the technical customer advocate within Cloudflare. To aid your customers, you will work closely with every team at Cloudflare, from Sales and Product to Engineering and Customer Support. Your goal of customer success should drive you through the entire organization as you seek out and create scalable solutions for your customer’s needs.

What we're looking for 

Our Solutions Engineers come from a wide range of backgrounds: financial consulting, engineering, software development, product management, customer support & project delivery. We're serious about building a diverse team. When hiring we look for diversity of experience combined with genuine curiosity for our technology.

Ultimately, you are passionate about technology and have the ability to explain complex technical concepts in easy-to-understand terms. You are naturally curious, and an avid builder who is not afraid to get your hands dirty. You appreciate the diversity of challenges in working with customers, and look forward to helping them realize the full promise of Cloudflare. On the Solutions Engineering team, you will find a collaborative environment where everyone brings different strengths and jumps in to help each other.

Additional experience might include a combination of the skills below:

• Ability to manage a project, work to deadlines, and prioritize between competing demands;
• Hands on technically.
• Understanding of “how the internet works”. For example:
• Know the differences between TCP & UDP, and understand what kinds of applications may favor one over the other;
• Can explain the difference between authoritative DNS & recursive DNS;
• You understand the role of a firewall, why TLS (SSL) plays an increasingly important role on today's Internet, a solid understanding of HTTP and a willingness to dive deeper into the quirks of clients & servers alike;

Bonus Points

• Previous experience in a sales or consulting role covering East China region. 
• Fluency in Mandarin and English to support regional customers;
• Demonstrated experience with a scripting language (e.g. Python, JavaScript, Bash) and a desire to expand those skills;
• You've built a web application before, or contributed to an existing application in a meaningful way;
• You can describe the differences between CSRF, XSS and SQLi in detail, and Cloudflare's role in defending against them;
• Understanding of, or experience with, regulatory requirements such a PCI DSS, HIPAA, and SOC-2;

Software has moved to play a central role in network technology. From outstanding routing implementations like Bird and FRR to overlay networking technology such as OVN/OVS and Cilium, from kernel with SwitchDev to userspace with DPDK, from P4 to OpenFlow, the relationship between network innovation and software continues to deepen. We are building teams to bring the very best open source networking software to market in a well integrated and opinionated stack that brings the latest hyperscaler innovation to end users and enterprise customers.

We work with networking silicon providers to optimize Ubuntu and related applications for their ASICs, boards and appliances. We aim to provide a complete open source stack for data center networking, from bare metal through virtualization, container and serverless, and also to address IoT networking systematically.

You will have a good chance of success if you are an outstanding software engineer, passionate about networking, with a special interest in the interface of hardware ASICs for acceleration and software for innovation and control. We value experience in open switch initiatives such as SoNIC and DENT, and upstream experience with components such as routing, kernel networking, eBPF, DNS, firewalls and load balancers. Our selection process is rigorous and requires work from the candidate as six to eight interviews over a period of months. We look for excellent academic results and a commitment to quality, resilience, documentation, security and performance in your work.

At Canonical you will have the opportunity to engage with the broader open-source community and industry leading partners in developing future-proof networking solutions. 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, Ubuntu Core, Private Clouds, MAAS and Kubernetes across a broad range of devices and use cases.

Location: we have network software engineering roles in APAC (Top-of-Rack switches) and Americas (SmartNIC/DPU) time zones.

What your day will look like

• Work with the most advanced operating systems and network application technologies available
• Participate upstream and deliver the Ubuntu SoNIC stack
• Collaborate with public clouds and network silicon providers
• Design and implement the best software-defined networking experience for the data center
• Write high-quality, well-designed, fast, secure and well-documented software
• Debug issues and produce high-quality fixes
• Collaborate proactively with a globally distributed organization
• Contribute to technical documentation to make it the best of its kind
• Display technical leadership internally, towards our partners, and in the open source communities
• Influence open-source projects and communities
• Work from home, with global travel twice a year for company events of up to two weeks duration

What we are looking for in you

• An exceptional academic track record
• Undergraduate degree in Computer Science or STEM, or a compelling narrative about your alternative path
• Drive and a track record of going above-and-beyond expectations
• Knowledge of networking: architecture, design, and protocols
• Understanding of Linux networking, from kernel to user space
• Fluency in C/C++ and at least one of Rust, Python or Golang
• Professional written and spoken English 
• Experience with Linux
• Excellent interpersonal skills, curiosity, flexibility, and accountability 
• Passion, thoughtfulness, and self-motivation 
• Excellent communication and presentation skills 
• Result-oriented, with a personal drive to meet commitments 
• Ability to travel twice a year, for company events up to two weeks each

Additional skills that you might also bring

• Familiarity with existing open source networking technologies: SONIC / SAI, kernel (e.g. eBPF, AF_XDP), DPDK, Switchdev, OVN, Open vSwitch.
• Familiarity with data path hardware acceleration protocols and interfaces, such as RDMA, RoCE, iWARP, NVMe, SR-IOV
• Computer architecture knowledge of x86, ARM, and RISC-V
• Experience in complex IP network engineering and implementation
• Experience with virtualization technologies, e.g., QEMU, KVM, etc.
• Previous contribution to open source projects and community involvement
• Performance engineering and security experience

What we offer you

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.

• Distributed work environment with twice-yearly team sprints in person
• Personal learning and development budget of USD 2,000 per year
• Annual compensation review
• Recognition rewards
• Annual holiday leave
• Maternity and paternity leave
• Employee Assistance Programme
• Opportunity to travel to new locations to meet colleagues
• Priority Pass, and travel upgrades for long haul company events

About Canonical

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 every day. 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.

Canonical is an equal opportunity employer

We are proud to foster a workplace free from discrimination. Diversity of experience, perspectives, and background create a better work environment and better products. Whatever your identity, we will give your application fair consideration.

#LI-remote

Company Overview

At Zuora, we do Modern Business. We’re helping people subscribe to new ways of doing business that are better for people, companies and ultimately the planet. It’s an approach resulting from the shift to the Subscription Economy that puts customers first by building recurring relationships instead of one-time product sales and focuses on sustainable growth. 

Through our leading expertise and multi-product suite - including Zuora Billing and Zuora Revenue — we provide a unified monetization and revenue automation platform that connects quoting, billing, payments, and revenue recognition end to end. Our solutions give finance and revenue teams a single source of truth for subscription economics, streamline ASC 606-compliant revenue recognition, and enable real-time insights into growth, profitability, and customer lifetime value.

We are transforming all industries and working with the world’s most innovative companies to monetize new business models, nurture subscriber relationships and optimize their digital experiences.

The Team & Role

The Beijing Billing Core team is a specialized engineering powerhouse and the heartbeat of Zuora’s global platform. As a mission-critical core team, we architect the foundational systems that power the world’s most sophisticated enterprise businesses. We operate at the intersection of high-scale distributed systems and real-time data innovation, prioritizing long-term engineering excellence and robust, scalable design.

The Opportunity: Leading the Strategic Evolution

We are currently driving a high-stakes evolution from traditional enterprise architecture to an intelligent, event-driven ecosystem.

• Mission-Critical Impact: Your work sits at the center of the global economy, directly enabling the growth of industry-leading organizations.
• The AI-Augmented Frontier: We are pioneering the future of software delivery by embracing an AI-first engineering culture. Our team leverages advanced AI development environments to navigate complex architectural puzzles, allowing our engineers to focus on high-level systems thinking and innovation.
• Global Technical Leadership: This is a rare opportunity to bridge the gap between stable, world-class foundations and greenfield data engineering within a high-talent global hub.

The Mission: Architecting the Future of Billing

Your mission is to ensure our platform remains the definitive global standard for reliability and intelligence. You will solve the industry’s most challenging scale and consistency problems, building a self-healing, high-concurrency engine that defines the future of digital commerce.

This is a location specific position that requires you to come into the office regularly to be most effective. 

What you’ll do

• Architect Mission-Critical Systems: You will design and evolve high-performance, distributed services within our core Java environment. You will be responsible for the architectural stewardship of systems that process billions of transactions, ensuring they remain scalable, robust, and enterprise-grade.
• Drive Real-Time Data Innovation: You will lead the development of sophisticated stream processing pipelines and event-driven architectures. By bridging the gap between foundational data stores and real-time analytics, you will enable the "Intelligence Layer" that defines the future of our global platform.
• Pioneer AI-Augmented Engineering: You will embrace an AI-first development culture, utilizing advanced tools like Claude Code and Codex to navigate complex logic and solve deep architectural puzzles. You will champion engineering excellence, prioritizing disciplined, maintainable design over temporary workarounds.

What You’ll Achieve: Impact & Outcomes

Instead of a list of tasks, these milestones focus on your growth and impact within the team.

• In your first 3 months: You will develop a thorough understanding of our core engine and streaming pipelines. You will successfully use AI-assisted tools to deliver high-quality features and enhancements within our distributed environment.
• By month 6: You will take ownership of a specific service or functional area. You will implement complex streaming or backend features, ensuring they are performant and integrate seamlessly with our real-time data layer.
• Within your first year: You will contribute to the long-term reliability of our platform by resolving technical bottlenecks. You will collaborate with the team to adopt AI-augmented practices and play a key role in the transition toward a more responsive, event-driven architecture

Your Experience (Must-Haves)

To ensure an inclusive applicant pool, we have limited this to core skills essential for success in this role.

• Strong Java Foundations: Significant experience building and scaling services within large codebases using Modern Java, the Spring Framework, and ORM/Persistence Frameworks; committed to delivering clean, maintainable, and disciplined code.
• Distributed Systems & Data Engineering: Expert in architecting stream processing pipelines and managing data consistency in high-concurrency, data-intensive systems; proficient in leveraging Apache Kafka, Apache Flink, Apache Beam, and Change Data Capture (CDC) alongside MySQL, ClickHouse, and Redis to build scalable architectures that support evolving schemas and massive data growth.
• Infrastructure & Deployment: Proven ability to architect and manage cloud-native backend services using AWS and Kubernetes to ensure high availability and system resilience.
• AI-Assisted Productivity: Proficient in utilizing AI-assisted development tools such as Claude, Codex, and Cursor to solve complex engineering puzzles efficiently and increase overall technical leverage.

Nice to Haves

These are not required for application but are areas where you can add immediate value.

• Data & Analytics: Experience with relational database optimization or building real-time data synchronization solutions.
• Cloud Operations: Familiarity with deploying and monitoring services in cloud-native or containerized environments.
• Collaborative Approach: Experience working in a global engineering hub and a desire to participate in technical discussions and learning.

#ZEOLife at Zuora

As an industry pioneer, our work is constantly evolving and challenging us in new ways that require us to think differently, iterate often and learn constantly—it’s exciting. Our people, whom we refer to as “ZEOs" are empowered to take on a mindset of ownership and make a bigger impact here. Our teams collaborate deeply, exchange different ideas openly and together we’re making what’s next possible for our customers, community and the world. 

As part of our commitment to building an inclusive, high-performance culture where ZEOs feel inspired, connected and valued, we support ZEOs with:

• Competitive compensation, variable bonus and performance reward opportunities, and retirement programs
• Medical, dental and vision insurance
• Generous, flexible time off 
• Paid holidays, “wellness” days and company wide end of year break
• More than 10 weeks  fully paid parental leave 
• Learning & Development stipend
• Opportunities to volunteer and give back, including charitable donation match
• Free resources and support for your mental wellbeing  

Specific benefits offerings may vary by country and can be viewed in more detail during your interview process.

Location & Work Arrangements

Organizations and teams at Zuora are empowered to design efficient and flexible ways of working, being intentional about scheduling, communication, and collaboration strategies that help us achieve our best results. In our dynamic, globally distributed company, this means balancing flexibility and responsibility — flexibility to live our lives to the fullest, and responsibility to each other, to our customers, and to our shareholders. For most roles, we offer the flexibility to work both remotely and at Zuora offices.

Our Commitment to an Inclusive Workplace

Think, be and do you! At Zuora, different perspectives, experiences and contributions matter. Everyone counts. Zuora is proud to be an Equal Opportunity Employer committed to creating an inclusive environment for all.

Zuora does not discriminate on the basis of, and considers individuals seeking employment with Zuora without regards to, race, religion, color, national origin, sex (including pregnancy, childbirth, reproductive health decisions, or related medical conditions), sexual orientation, gender identity, gender expression, age, status as a protected veteran, status as an individual with a disability, genetic information, political views or activity, or other applicable legally protected characteristics.

We encourage candidates from all backgrounds to apply. Applicants in need of special assistance or accommodation during the interview process or in accessing our website may contact us by sending an email to assistance(at)zuora.com.

POSITION SUMMARY

As a Field Process Engineer you will be responsible to understand our customers’ needs, and provide process support and subsequent implementation with alignment with BUs to ensure we deliver service and value to meet even exceed customers’ expectation.

As a key driver of business success, you will play a vital role in strengthening and enabling business success through developing and improving processes run on our tool sets at customer sites.

JOB RESPONSIBILITIES 

• Evaluate, understand and identify current customer needs, while also anticipating future needs and building long-term sustainable relationship and solutions.
• Drive continuous improvement of the customer experience through team, process and support tool development.
• Drive and manage new product installs and subsequent process development.
• Leading new site start up and planning/risk assessment for readiness/execution successfully to get customer recognition and satisfaction.
• Define project scope and resource planning together with BU, escalate to Manager for resource gap.
• Support CS EE /Sales/BU as one team to success site base operation/service.

REQUIREMENTS

• Master Degree or above.
• Solid technical knowledge and deep business perspective in the Semiconductor industry, preferably in CVD/ALD/Furnace/EPI related.
• Strong industry experience that support complex instrumentation, applications and informatics.
• Ability to work in a team environment with tight deadlines and multiple priorities.
• Ability to collaborate with others to find the best solutions
• Good command of English

Key Responsibilities:

• Responsible for the infrastructure construction of the company’s internal security operation platform SOC and subsequent security incident management, incident discovery, analysis, emergency response, etc.
• Responsible for general 0day vulnerability analysis, penetration analysis and intrusion detection, timely discovering security risks and taking effective protective measures.
• Responsible for penetration testing, confrontation drills, and assessment of various security products and defense capabilities in intranet, public network, and cloud environments.
• Responsible for risk asset management, automated response orchestration SOAR, tracking and traceability functions, vulnerability emergency response, etc.
• Responsible for the operation of SRC and follow-up of related vulnerability repairs.

Key Requirements

• Bachelor’s degree in Computer Science, Information Security, or a related field.
• More than 1 year of experience in incident response, system security, network monitoring, vulnerability management, or related fields.
• Familiarity with best practices in security engineering, including network security, security operations, system security, and incident response.
• Proficiency in specialized technical areas such as intrusion detection, deception detection, digital forensics, malware analysis, and threat tracking.
• Ability to identify and remediate security vulnerabilities, and knowledge of common techniques used by attackers and security defense measures.
• Familiarity with commonly used security monitoring, log analysis, and forensic tools, and the ability to effectively apply them in the investigation and analysis of security events.
• Proficiency in at least one scripting language, such as Python, Perl, or Bash, with experience in automating security tasks and tool development.
• Good communication and coordination skills, strong sense of ownership.

Job Responsibilities:

• Design and optimize project architecture or backend architecture, develop backend business logic, and ensure system stability.
• Work closely with product, operations, and other teams to determine technical solutions and evaluate development timelines.
• Stay updated on blockchain technology trends and apply them to real-world product development.
• Responsible for core wallet business and financial product functionality iterations and performance optimization.

Job Requirements:

• Bachelor's degree or higher in Computer Science or a related field, with a solid coding foundation and strong knowledge of algorithms and data structures.
• Proficient in at least one of the following programming languages: Python, Golang, or Java.
• Familiar with Linux development environments, proficient in MySQL, Redis, and understand their fundamental principles.
• High standards for code quality, with a habit of conducting and enjoying Code Reviews.

Preferred Qualifications:

• Maintains a technical blog or has contributed to open-source projects.
• Strong product sense and an interest in product design.