Full Stack Engineer for Advanced AI Systems

About the RoleA1 is developing an innovative AI system designed to enhance productivity by seamlessly managing workflows across conversations, tools, and time.As a Senior Machine Learning Engineer, you will play a pivotal role in owning and advancing critical ML systems currently in production. This position is tailored for engineers capable of independently navigating complex ML challenges from conception to deployment while making informed trade-offs throughout the process.Key ResponsibilitiesDesign and implement essential ML systems that drive a forward-thinking, long-term AI product.Take full ownership of projects: from data preparation and training to evaluation, inference, and iterative improvements.Transform research concepts into operational systems that perform reliably in a production environment.Troubleshoot model failures and system issues using actual production data.Adopt a rapid iteration cycle: deploy, measure results, refine, and repeat.Collaborate closely with research, product, and engineering teams to generate substantial user impact.Provide mentorship and guidance to fellow ML engineers through exemplary practices and technical insights.Operate within real-world production constraints including latency, cost, reliability, and safety considerations.Technology StackPythonPyTorch / JAXGPU-based training and inference systemsDesired QualificationsProven experience in building and deploying ML systems utilized by end users.In-depth understanding of modern ML model behavior and potential pitfalls in production settings.Ability to write robust, production-quality code with a systems-oriented mindset.Demonstrated ownership and the ability to work autonomously to drive projects to completion.Quick learner with excellent communication skills and a focus on continuous improvement through iteration.Work EnvironmentOur organization is structured with a flat hierarchy, fostering a small, dedicated team focused on engineering and product excellence. Every team member is expected to actively contribute to the company’s vision.Interview ProcessShould your qualifications align with our needs, we will arrange a series of 3 to 4 interviews.

Bjak is a leading insurance portal in Southeast Asia, headquartered in Malaysia. The company aims to make financial services more accessible and affordable throughout the ASEAN region. Millions of users rely on Bjak.com to compare insurance options and secure solutions that balance value with coverage. The team invests in technology, custom APIs, trading systems, and data science to help people access financial products that were previously out of reach. With experience navigating complex regulations, Bjak delivers digital insurance products such as online investment-linked life and health policies, as well as instant access to agents through its platforms. Role overview This Senior Frontend Engineer position is based in China and focuses on building user-facing features and platforms that expand access to financial services. What you will do Design and develop interactive features using HTML5, CSS3, and JavaScript frameworks like React, Angular, or Vue.js. Collaborate with UI/UX designers to translate wireframes into reliable, high-quality code. Optimize web applications for speed, performance, and scalability. Assess the technical feasibility of UI/UX concepts and implement responsive design techniques. Take part in code reviews to help maintain code quality and meet internal standards. Work with backend engineers to ensure smooth integration between frontend and server-side logic. Stay current with new technologies and industry trends to improve frontend development practices.

About the RoleA1 is at the forefront of developing an advanced AI system designed to comprehend context across conversations, formulate strategic actions, and maintain continuity over time.Your role will involve transforming innovative research into operational, production-grade machine learning systems. You will lead the execution layer of A1’s intelligence, overseeing training pipelines, inference systems, evaluation tools, and deployment processes.What You'll Be Responsible ForDevelop and manage comprehensive ML pipelines that encompass data management, training, evaluation, inference, and deployment.Optimize and refine models utilizing cutting-edge methodologies such as LoRA, QLoRA, SFT, DPO, and model distillation.Design and maintain scalable inference systems, ensuring a balance between latency, cost-effectiveness, and reliability.Create and manage data systems to ensure access to high-quality synthetic and real-world training data.Establish evaluation pipelines that assess performance, robustness, safety, and bias, collaborating closely with research leadership.Oversee production deployment, focusing on GPU optimization, memory efficiency, latency reduction, and scaling strategies.Engage closely with application engineering teams to seamlessly integrate ML systems into backend, mobile, and desktop applications.Make informed trade-offs and rapidly implement improvements based on real-world usage.Operate under real production constraints including latency, cost, reliability, and safety considerations.Technical ExpertiseProficient in PythonExperience with PyTorch and JAXFamiliarity with GPU-based training and inference systemsPreferred QualificationsYou have successfully built or deployed machine learning systems that deliver real value to users.You possess a strong understanding of large models and their potential failure modes.Your coding skills are robust, with a focus on production-grade quality and system integrity.Self-motivated and pragmatic, you take full ownership of your contributions and outcomes.You communicate effectively and excel in collaborative, high-trust team environments.Our Working EnvironmentOur organization is structured to foster innovation and collaboration among talented individuals, committed to pushing the boundaries of AI technology.

Join bjakcareer as a Senior Engineer focused on developing and enhancing our internal tools. In this pivotal role, you will design and implement solutions that streamline operations and improve team efficiency. Your expertise will contribute significantly to our product development and overall success.

About the RoleA1 is developing an innovative AI system that is integrated into daily workflows, conversations, and tools. As a Desktop Applications Developer, you will be responsible for defining the behavior of this system within desktop environments. Your primary focus will be on ensuring reliability, optimizing performance, and facilitating real-time interactions within production desktop applications.Your ResponsibilitiesDevelop and maintain cross-platform desktop applications with Electron.Create responsive and scalable user interfaces that support real-time collaboration.Implement desktop-specific functionalities such as file system integration, native notifications, auto-updates, and deep linking.Incorporate AI-driven features (e.g., chat, agents, AI assistance) using backend APIs.Optimize application startup time, memory consumption, and overall runtime performance.Analyze and mitigate Electron overhead.Efficiently manage large local state and message histories.Ensure seamless real-time updates for messages, typing indicators, and user presence.Ensure application stability across macOS and Windows platforms.

Join our team as the Director of Engineering, where you will lead innovative engineering projects and shape the technological direction of our organization. You will be responsible for overseeing engineering operations, ensuring high-quality deliverables, and fostering a culture of collaboration and excellence within the team.

About the RoleJoin our innovative team at bjakcareer, where we are developing an intelligent AI system that enhances user interactions across various conversations, tools, and workflows.In this role, you will be responsible for designing, developing, and maintaining high-performance Android applications that seamlessly integrate AI into the user experience. Your focus will be on creating reliable, efficient, and user-friendly applications that prioritize thoughtful design over simple connectivity.Focus AreasDevelop and maintain robust Android applications utilizing Kotlin.Incorporate AI-driven functionalities such as chat, vision, voice recognition, and personalized recommendations through backend APIs.Craft user experience patterns for AI interactions, addressing streaming responses, retries, and partial results.Enhance application performance, manage memory usage, and ensure responsiveness in AI-centric workflows.Deploy analytics, logging, and feedback mechanisms to facilitate AI evaluation and iterative improvements.Work closely with backend and machine learning engineers to establish API contracts and define system behaviors.Ensure the stability, security, and scalability of applications in production environments.Ideal QualificationsA minimum of 3 years of experience in Android development using Kotlin.Practical experience in integrating AI capabilities, including language models, computer vision, and speech APIs.Solid understanding of asynchronous programming concepts (Coroutines, Flow).Familiarity with RESTful and gRPC APIs, as well as structured data formats.Strong debugging and performance optimization skills.Experience in environments with latency, partial failures, and non-deterministic behavior.Hands-on experience with MLKit or similar on-device inference tools.Track record of publishing Android applications on the Google Play Store.Technology StackKotlin / JavaSQL / NoSQLTensorFlow Lite for on-device inferenceOur Work CultureAt bjakcareer, we pride ourselves on our flat organizational structure, where a small, passionate team is dedicated to engineering and product excellence. Every team member is encouraged to take an active role in driving the company's mission forward.

BJAK is expanding its global reach as the largest insurance platform in Southeast Asia, building technology-driven solutions for insurance and financial services. The company emphasizes ownership, personal growth, and meaningful contributions from every team member. Role overview The Data Engineer will develop and support the data infrastructure that underpins analytics, product insights, and other essential systems at BJAK. Collaboration with analytics, product, and engineering teams is central to this role, ensuring data remains reliable, accessible, and ready for production at scale. Main responsibilities Design, build, and maintain scalable and fault-tolerant data pipelines, both batch and streaming, to address business and product data requirements. Ingest data from APIs, databases, event streams, and third-party services, prioritizing high data quality and reliability. Develop and oversee data models and storage solutions, such as data warehouses and data lakes, to support analytics and downstream needs. Deliver clean, well-documented datasets for self-service analytics and experimentation, working closely with analytics, product, and engineering teams. Implement monitoring, logging, and alerting to maintain pipeline reliability, performance, and cost efficiency. Apply data governance best practices, including access control, privacy, documentation, and data lineage. Required qualifications Minimum 3 years of experience as a Data Engineer, data-focused Backend Engineer, or a similar position. Strong programming skills in Python and/or TypeScript, with solid SQL expertise. Comprehensive understanding of data modeling, ETL/ELT processes, and analytics workflows. Hands-on experience with data warehouses such as BigQuery or Snowflake. Demonstrated ability to build and manage production data pipelines. Preferred qualifications Experience with cloud platforms, especially Google Cloud Platform. Familiarity with streaming systems like Kafka or Pub/Sub. Location This position is based in China.

About the RoleA1 is developing an innovative AI system that users engage with daily through conversations, tools, and workflows. As an iOS Software Engineer, you will shape the user experience of AI by creating production-quality iOS applications where AI serves as an integral interaction layer, not merely an enhancement. Your contributions will significantly influence the usability, trust, and perceived intelligence of our product.Key ResponsibilitiesDevelop and sustain iOS applications leveraging Swift and SwiftUI.Integrate AI-driven functionalities via backend APIs.Craft user experience patterns for AI interactions, inclusive of loading states, streaming responses, retries, and fallbacks.Enhance application performance, memory efficiency, and battery consumption.Gather user feedback and signals to facilitate AI evaluation and refinement.Work closely with backend and machine learning engineers on API architecture and system behavior.Ensure high App Store quality, stability, and production reliability.Desired QualificationsA minimum of 3 years of iOS development experience with Swift.Proven experience in integrating AI-powered features into mobile applications.Strong grasp of async/await, concurrency, and background processing.Expertise in iOS performance and memory optimization techniques.Experience in shipping and maintaining production-level iOS applications.Ability to design for latency issues, partial failures, and unpredictable AI behavior.Familiarity with CoreML or on-device machine learning.Experience with feature flags or remote configuration systems.A solid understanding of AI user experience patterns and trust considerations.Technical ProficienciesSwiftSwift Package Manager (SPM)SwiftUISQL / NoSQL databasesTensorFlow Lite for on-device inference

Join our innovative team at bjakcareer as a Backend Engineer specializing in Artificial Intelligence. You will be responsible for designing and implementing scalable backend solutions that power cutting-edge AI applications.In this role, you will collaborate with cross-functional teams to develop robust backend systems that enhance the efficiency and performance of AI models. Your expertise in backend technologies will play a crucial role in shaping our AI products.

About the RoleAt bjakcareer, we are developing an innovative AI system designed to seamlessly advance work across various conversations, tools, and timelines.As the Technical Lead for Applications, you will spearhead the engineering systems, teams, and processes that transform machine learning capabilities into fast, reliable, and intuitive user experiences across backend, mobile, and desktop platforms.Key ResponsibilitiesTake charge of the application engineering strategy and oversee execution across backend, mobile, and desktop platforms.Lead and expand a high-performing team of senior engineers specializing in backend, mobile, and desktop applications.Define the architectural vision for AI-powered product workflows, APIs, and client integrations.Ensure seamless integration of AI capabilities into products, with clear abstractions, reliable behavior, and robust failure handling.Collaborate closely with Machine Learning leadership to convert model capabilities into deployable product features.Make impactful decisions regarding latency, cost, reliability, security, and user experience.Foster a culture of excellence through code and design reviews, as well as hands-on technical leadership.Guarantee production readiness by implementing observability, monitoring, retries, fallbacks, privacy protections, and cost management.Strike a balance between speed and discipline, ensuring rapid delivery without compromising long-term system integrity.Desired QualificationsExtensive experience in leading application or product engineering for complex systems.Strong hands-on experience in building and deploying backend systems utilized in production environments.Experience in delivering AI-driven products, with a solid understanding of model integration trade-offs.Proficient in system design across services, APIs, clients, and data flows.Ability to work across platforms (backend, mobile, desktop), even if your specialization lies in one area.Demonstrated ability to make significant technical decisions in ambiguous situations.A strong inclination towards shipping products, iterating, and learning from real-world applications.Ability to move quickly while maintaining foundational principles.Work EnvironmentOur organization operates with a flat structure and a tight-knit team, fostering collaboration and innovation.

About the RoleJoin bjakcareer as we innovate a cutting-edge AI system that comprehends context throughout conversations, orchestrates actions, and advances tasks over time.In this pivotal role, you will transform research insights into robust, production-ready machine learning systems. You will oversee the execution layer of our AI's intelligence, encompassing training pipelines, inference systems, evaluation tools, and deployment strategies.What You'll DoDevelop and manage comprehensive ML pipelines, integrating data collection, training, evaluation, inference, and deployment.Optimize and tailor models utilizing advanced techniques including LoRA, QLoRA, SFT, DPO, and model distillation.Design and maintain scalable inference systems, ensuring a balance between latency, cost, and reliability.Create and sustain data systems that yield high-quality synthetic and real-world training data.Establish evaluation pipelines that assess performance, robustness, safety, and bias, collaborating with research leadership.Lead production deployment efforts, focusing on GPU optimization, memory efficiency, latency reduction, and scaling policies.Work closely with application engineers to seamlessly integrate ML systems into backend, mobile, and desktop products.Make informed trade-offs and expedite improvements based on real-world usage.Navigate real production constraints including latency, cost, reliability, and safety considerations.Tech StackProficient in PythonExperience with PyTorch or JAXFamiliarity with GPU-based training and inference systemsIdeal ExperienceDemonstrated experience building or deploying real ML systems that users engage with, beyond demos.Comfortable managing large models and understanding their limitations.Strong ability to write production-grade code with a focus on system reliability.Self-motivated, pragmatic, and accountable for results.Excellent communication skills and ability to collaborate effectively in small, high-trust teams.How We WorkOur organization fosters a culture of innovation and collaboration, where every team member is encouraged to contribute their unique perspectives and expertise.

BJAK builds application platforms for a global user base, focusing on helping businesses thrive, improving efficiency, and making a positive social impact. The company launched Southeast Asia's first digital insurance platform, now used by more than 8 million people. BJAK continues to expand its offerings, integrating emerging AI technologies into new applications. The team values strong engineering and product standards, operates with a flat hierarchy, and encourages proactive input from everyone. Role overview The Chief Technology Officer position is based in China. This role shapes BJAK's technical vision, leads engineering teams, and drives product innovation across multiple regions. What you will do Set architectural direction: Define long-term plans for systems, infrastructure, and developer platforms. Balance priorities: Weigh trade-offs between rapid iteration and sustainable design. Design for scale: Ensure architectures are scalable, reliable, and adaptable. Guide technical decisions: Lead choices on model integration, data pipelines, distributed systems, and product architecture. Translate strategy into action: Work with engineers to turn product strategies into technical plans. Structure workflows: Organize engineering processes and keep teams aligned with objectives. Maintain standards: Uphold high engineering standards and focus teams on delivery timelines. Shape engineering culture: Foster strong development practices and technical standards throughout the company. Build teams: Grow high-performing engineering teams in China, the United States, and other key markets. Develop leaders: Identify and mentor technical leaders to strengthen the organization. Define hiring practices: Set rigorous hiring standards and interview processes to maintain engineering quality. Coordinate across functions: Work closely with product, research, and leadership teams to keep technical workstreams moving forward. Resolve challenges: Help teams overcome cross-team technical obstacles and support collaboration across locations.

About AtriaAt Atria, we leverage artificial intelligence to revolutionize the ad creative workflow for marketing teams, enabling them to create impactful ads efficiently and enhance performance across platforms such as Meta and TikTok. Our innovative platform is trusted by esteemed brands like Perplexity, ClickUp, and Beehiiv, as well as top agencies including Power Digital, Inspire Digital, and Disruptive Digital.Having successfully completed our angel funding round, Atria is supported by leading venture capital firms, including Accel, whose portfolio features notable companies such as Facebook, Discord, Spotify, and Slack.Role SummaryYou will be responsible for crafting the frontend experiences that drive Atria’s essential product workflows, converting intricate advertising logic and AI functionalities into seamless, user-friendly, and scalable interfaces.This position transcends traditional frontend roles that focus solely on implementation. We seek an individual capable of comprehensively grasping user requirements, business strategies, and product objectives; guiding features from initial concepts to refined product outputs, and developing systems that enhance product quality, user engagement, and business results.Key ResponsibilitiesDevelop and take ownership of high-quality frontend experiences for Atria’s core product workflows.Translate vague product intentions, intricate business logic, and AI capabilities into clear interaction models and actionable implementation strategies.Lead the complete delivery process from clarifying requirements and designing solutions to implementation, launch, and iterative improvements.Leverage AI-driven development workflows to expedite iterations and explore innovative approaches to product development.Act with a high degree of ownership within a small team, independently tackling complex and ambiguous challenges.QualificationsDemonstrated expertise in frontend engineering with the capability to independently deliver intricate product features.Strong aptitude for understanding complex business logic and translating it into intuitive product and user experience solutions.A solid product sense: not merely executing tasks, but proactively identifying issues, bridging gaps, and influencing decision-making.A keen eye for interaction design and product experience; able to create thoughtful and usable interfaces even in the absence of fully specified designs.

About the RoleA1 is developing an advanced AI system capable of understanding contextual nuances throughout conversations, planning actionable steps, and maintaining ongoing tasks over time.In this role, you will engage with foundational machine learning systems under the mentorship of experienced engineers. This position is ideal for innovators eager to enhance their skills by deploying authentic machine learning solutions in a live environment.Key ResponsibilitiesDesign and enhance machine learning components throughout data handling, training, evaluation, and inference.Optimize and adapt models as integral parts of comprehensive production systems.Conduct evaluations and tests to gain insights into model functionality.Assist in the construction and upkeep of data pipelines for both real and synthetic datasets.Troubleshoot model discrepancies, performance issues, and production challenges.Implement iterative improvements and learn from user feedback.Collaborate closely with senior ML engineers and product teams.Operate within real-world production constraints such as latency, cost, reliability, and safety.Technical Skills RequiredProficient in Python.Experience with PyTorch or JAX.Familiarity with production-grade ML systems utilizing GPU technology.Preferred QualificationsSolid understanding of machine learning principles and contemporary neural network architectures.Some practical experience in training, fine-tuning, or deploying ML models.Ability to write high-quality production code and swiftly adopt new tools.A curious mindset with a willingness to learn from real-world production systems.Capable of navigating ambiguity with guidance and gradually taking on greater responsibility.A proactive approach to shipping, iterating, and continuous refinement.Our Work CultureWe maintain a flat organizational structure where our compact team is highly motivated and dedicated to engineering and product excellence. All team members are encouraged to be hands-on and directly contribute to the overarching mission of the company.Interview ProcessShould your profile align with our needs, we will reach out to arrange between 3 to 4 interviews.

Join bjakcareer as the Head of Product, AI, where you will lead the development and execution of innovative AI product strategies. In this pivotal role, you will collaborate with cross-functional teams to drive product vision and ensure alignment with market needs. Your leadership will shape the future of our AI offerings, making a significant impact on the industry.

bjakcareer seeks a Recruiting Coordinator to help organize and streamline hiring in China. This position plays a key role in managing recruitment logistics and keeping communication clear between candidates and hiring managers. Main responsibilities Post open roles and ensure listings stay current Arrange interviews and handle candidate communications Assist with onboarding new team members Collaborate with various departments to refine recruitment approaches Location This role is based in China.

Join Canva, a leading online design platform, as a Senior Software Engineer specializing in our Native Video Engine. In this role, you'll play a pivotal part in enhancing our video capabilities, ensuring a seamless and engaging experience for millions of users. Your expertise will help drive innovation and deliver high-quality video solutions that meet the diverse needs of our global community.

Bjak is dedicated to providing accessible and sustainable financial services to individuals across Southeast Asia. As the largest insurance portal in the region, headquartered in Malaysia, Bjak enables millions to discover the most cost-effective and comprehensive insurance options through our primary platform, Bjak.com. Our technological investments, including custom APIs, trading systems, and data science initiatives, strive to simplify access to financial services that were once difficult to navigate.As we continue to grow in Malaysia, we invite you to join us on this exciting journey. If you resonate with our vision and are eager to contribute to Bjak's next chapter of success, we look forward to your application.