[Remote] Sr Software Engineer, Fullstack

Note: The job is a remote job and is open to candidates in USA. LTK is a global technology platform that empowers lifestyle creators to monetize their content. They are searching for a Senior Software Engineer to join the Creator organization, responsible for building and maintaining high-quality fullstack systems and user experiences that drive creator growth across the platform.ResponsibilitiesComing up with feasible and practical solutions to tough problemsDesign, build, and maintain high-quality fullstack systems and experiencesTake end-to-end ownership of features across the stack: from early technical design and prototyping through implementation, testing, rollout, and ongoing iterationCollaborate with product, design, and other engineers to deliver intuitive, performant, and accessible fullstack experiences that delight creators and brandsOptimize fullstack applications and services for performance, scalability, and reliabilityChampion best practices in architecture, usability, security, and cross-platform compatibility across the full stackUse AI tools to expedite daily workflows (e.g., code generation, refactoring, test creation, documentation) and to improve both speed and quality of web developmentLeverage AI-assisted development practices to prototype, iterate on, and maintain web features efficiently, while holding a high bar for safety and code qualityWrite very high-quality, well-tested code that is robust and easy to maintainTake ownership of projects and drive them to completionWork and succeed in a fast-paced and agile development environmentIdentify and drive improvements to our fullstack architecture, tooling, and development processesConduct constructive peer design/code reviews and provide clear, actionable feedbackWork with distributed teams across different time zonesServe as a technical subject matter expert for fullstack development who mentors fellow engineers, demonstrates technical experience, and leads teams in solving challenging problemsSkills5+ years of software development experience, with significant time spent building and maintaining production-scale fullstack applicationsDeep experience with modern fullstack development, including both front-end and back-end technologiesDemonstrated proficiency in React.js (or another comparable framework), including building complex, component-based single-page applicationsStrong understanding of front-end architecture and patterns (component design, state management, routing, modularization)Experience with modern web tooling and ecosystems (e.g., Webpack/Vite, npm/yarn, linting, formatting, testing frameworks such as Jest, React Testing Library, Cypress, or similar)History of designing and building highly scalable, resilient web experiences that serve a growing user baseExperience integrating with backend services and APIs (REST/JSON, HTTP; GraphQL) and working closely with backend teams to define interfaces and contractsStrong focus on performance, accessibility, security, and usability in web applicationsDemonstrated experience using AI tools as part of the software development lifecycle (coding, debugging, testing, documentation) with concrete examples of improved productivity or qualityAbility to critically evaluate AI-generated code, refine it, and integrate it safely and effectively into production systems while maintaining team standards and best practicesExperience designing and building backend services or APIs to support web applications in a modern server side language (Go, Java)Experience with AWS systems such as ECS, Lambda, and RDS (among others)Experience working in a containerized environment (preferably Docker)Experience with databases such as MySQL, DynamoDBExperience with observability tools like DatadogComfortable shipping code multiple times per dayStrong technical leadership and mentoring skillsAbility to model and conceptualize integrations across complex systems and how services interact across the full stackExcellent verbal and written communication skills to both technical and non-technical audiencesBenefits401(k) with LTK company matchingMedical Insurance, Vision Insurance, Dental InsurancePaid Maternity Leave and Paid Paternity LeaveSummer Fridays and Flexible PTOCompany OverviewLTK is a marketing company that offers retail sales and shopping apps. It was founded in 2011, and is headquartered in Dallas, Texas, USA, with a workforce of 501-1000 employees. Its website is https://company.shopltk.com/.