Senior Full Stack Engineer, Web & Mobile

Help Us Build the Relational Operating System for Churches and MinistriesAt Called, we’re building the relational operating system for churches and ministries.Our platform helps ministry leaders know their people, build stronger community, and foster deeper discipleship throughout the week, not just on Sundays.Most churches serve hundreds, if not thousands, of people. Yet very few people in these communities feel truly known. People often drift away not because they reject belief, but because nobody notices they disappeared.We’re a small, high-trust team building meaningful software with modern tools, AI-assisted workflows, and a strong sense of mission. We move fast, care deeply about quality, and believe technology should strengthen human relationships, not replace them.If you want to help rebuild community in a disconnected world through thoughtful software, we’d love to meet you.About the RoleWe are looking for a Senior Full Stack Engineer, Web & Mobile to build polished, reliable experiences across the Called platform.This is a full stack engineering role with a strong emphasis on frontend development, responsive web, mobile usability, React, TypeScript, Capacitor, release quality, and user-facing craft.You should be comfortable working across the stack, but your strongest instincts should be around the user experience: how the interface behaves, how it feels on mobile, how users move through workflows, and how to ship features that are useful, reliable, and easy to use.A major part of this role will be owning the quality of our web and mobile experiences. That includes building responsive interfaces, testing mobile workflows, documenting mobile-specific issues, validating fixes, understanding app store requirements, and helping manage release workflows where applicable.We are especially excited about engineers who are AI-forward and use modern tools to move faster, prototype quickly, debug effectively, improve quality, and reduce repetitive work.This is a senior individual contributor role, not a people-management role or formal technical lead role.What You'll DoBuild and improve features using React, TypeScript, React Query, CSS Modules, Python, Django, PostgreSQL, and related tools.Create responsive, accessible interfaces that work well across desktop, tablet, and mobile devices.Own frontend-heavy features from planning through implementation, QA, release, and iteration.Work with backend APIs to fetch, update, validate, and manage application data.Contribute to backend services, APIs, data models, and integrations when needed.Test mobile and responsive workflows across devices, browsers, screen sizes, and app environments.Own QA for mobile issues, including reproduction, documentation, fix verification, and regression prevention.Help manage mobile release readiness, including build validation, release checklists, app store awareness, versioning, and post-release validation.Improve frontend architecture, component patterns, state management, data fetching, performance, accessibility, and maintainability.Use AI-assisted tools for development, debugging, prototyping, documentation, testing, and product iteration.Participate in code reviews, technical discussions, testing, and team knowledge-sharing.Our Engineering PhilosophyWe believe modern engineers should be dramatically amplified by AI.Our team actively uses AI-assisted workflows for development, debugging, prototyping, testing, documentation, automation, and rapid product iteration.We care far more about builders who can move fast, learn quickly, and solve problems than developers obsessed with rigid specialization.We value:Ownership over bureaucracyShipping over perfectionismCuriosity over egoProduct thinking over ticket completionMission and craftsmanship equallyWhat We’re Looking For5+ years of software engineering experience, or equivalent experience building and shipping meaningful production software.Strong experience with React, TypeScript, JavaScript, HTML, CSS, and responsive design.Experience building high-quality interfaces for desktop, tablet, and mobile users.Strong understanding of frontend architecture, component design, state management, data fetching, browser behavior, performance, and accessibility.Experience testing and debugging responsive or mobile experiences across devices, browsers, and screen sizes.Experience with mobile release workflows, app store deployment, mobile QA, hybrid mobile apps, or app-like web experiences.Experience working with APIs and contributing across the stack, ideally with Python, Django, REST APIs, PostgreSQL, or similar technologies.Experience using Git in a collaborative development environment.Experience using AI-assisted development tools or agentic workflows for coding, debugging, documentation, automation, testing, or productivity.Strong attention to detail, clear communication, and a willingness to own quality before release.A passion for building technology that supports a mission-driven orga