Senior Full-Stack Software Engineer

Senior Full-Stack Software Engineer, AI Applications (Sales)At Allegion, we help keep the people you know and love safe and secure where they live, work and visit. With more than 40 brands, 14,000+ employees globally and products sold in 130 countries, we specialize in security around the doorway and beyond.Allegion is driven by a bold vision: redefining safety while empowering our employees to thrive. When you join our team, you become part of a culture that values innovation, purpose, and excellence. This role offers the benefits of our dynamic hybrid work model—combining in-person collaboration for meaningful moments with the flexibility of remote work.We are committed to fostering a healthy work-life balance and building meaningful connections, ensuring you have the tools, resources, and support needed to excel in any environment. Together, we'll unlock your potential and create a lasting impact.Job Summary:We are seeking a Senior Full-Stack Software Engineer to own and deliver end-to-end software solutions for our Sales organization's AI-powered applications. You'll take ownership of the UI, workflow, integrations, and data layer across an existing portfolio of AI tools — driving architectural decisions, mentoring junior engineers, and collaborating with our AI team, Business Solutions Lead, and product owners — while our AI team continues to own the underlying algorithm and model components. You'll thrive in a fast-paced, Agile environment, take ownership from concept through production, and use AI-assisted development tools as part of your daily workflow.What You Will Do:Own the software layers of our AI-powered Sales applications — UI, workflow, integrations, and data validation — while our AI team owns the underlying algorithm and model components.Take over support and enhancement of the existing AI application portfolio, progressively reducing dependence on the AI team.Lead the design, implementation, and delivery of complex full-stack features, from user interfaces to services and data stores.Architect scalable, robust solutions; participate in architecture reviews and POC reviews with the AI team, and contribute to the evolution of our software stack and solution designs for new tools.Write high-quality, well-tested code with strong unit, integration, and end-to-end tests; champion quality, reliability, and maintainability.Collaborate with the Business Solutions Lead, product owners, and cross-functional teams to refine requirements, define technical work, and prioritize enhancements.Leverage the AI team's shared infrastructure, DevOps, and operational support rather than rebuilding it, deploying through the existing containerized platform and CI/CD pipeline.Train other professionals and provide technical leadership on methods and processes within their discipline; mentor junior engineers and offshore support, and enforce best practices in code quality, documentation, testing, and version control.What You Need to Succeed:7+ years of hands-on full-stack development experience (or equivalent), with a track record of delivering large-scale software from concept through production.Bachelor's degree required (Informatics or Computer Science preferred).Advanced proficiency in Python and React (JavaScript/TypeScript); experience building APIs with FastAPI or similar frameworks.Deep experience designing, developing, and maintaining REST APIs and RESTful services, including event- and workflow-driven integrations (e.g., inbox and CRM connections); solid understanding of microservices patterns.Working familiarity with DevOps and QE (quality engineering) concepts — CI/CD, containerized deployment, and automated testing — and comfort building cloud-based production systems (Azure primarily) within an existing shared platform.Experience with SQL, data modeling, and designing for performance and reliability.Fluent daily use of AI-assisted development tools, including agentic workflows and CLI's such as Claude Code or Codex.Strong problem-solving, communication, and collaboration skills; ability to work effectively with both technical and non-technical stakeholders across cross-functional teams.Demonstrated ability to lead initiatives, mentor others, and drive results in a fast-paced environment.Preferred Experiences:Experience integrating with or extending generative AI / ML services and agentic architectures.Experience with prompt engineering and developing or maintaining reusable AI skills, prompt libraries, or tool definitions for agentic systems.Dynamics 365 / CRM integration experience.Experience with testing automation, release management, and support/on-call practices.Background in sales or quoting workflows.Must be able to clearly and concisely communicate technical perspective and status to ensure shared understanding both upwards and downwards in the organization.Experience working in a fast-paced, agile environment while providing consistent application lifecycle management.Why Work for Us?Allegion is a Great Place to Grow your Career if:You're seeking a rewarding opportunity that allows you to truly help others. With thousands of employees and customers around the world, there's plenty of room to make an impact. As our values state, "this is your business, run with it."You're looking for a company that will invest in your professional development. As we grow, we want you to grow with us.You want a culture that promotes work-life balance. Our employees enjoy generous paid time off, because at Allegion we recognize that you have a full life outside of work!You want to work for an award-winning company that invests in its people. Allegion is proud to be a recipient of the Gallup Exceptional Workplace Award for the second year in a row, recognizing our commitment to employee engagement, strengths-based development, and unlocking human potential.What You'll Get from Us:Health, dental and vision insurance coverage, helping you "be safe, be healthy"Unlimited Paid Time OffA commitment to your future with a 401K plan, which currently offers a 6% company match and no vesting periodHealth Savings Accounts – Tax-advantaged savings account used for healthcare expensesFlexible Spending Accounts – Tax-advantaged spending accounts for healthcare and/or dependent daycare expensesDisability Insurance –Short-Term and Long-Term coverage, paid for by Allegion, provides income replacement for illness or injuryLife Insurance – Term life coverage with the option to purchase supplemental coverageTuition ReimbursementVoluntary Wellness Program – Simply complete wellness activities and earn monetary rewardsEmployee Discounts through Perks at WorkCommunity involvement and opportunities to give back so you can "serve others, not yourself"Opportunities to leverage your unique strengths through CliftonStrengths assessment & coachingApply Today!Join our team of experts today and help us make tomorrow's world a safer place!Not sure if your experience perfectly aligns with the role? Studies have shown that some people are less likely to apply to jobs unless they meet every single qualification and every single preferred qualification of a job posting. At Allegion, we are dedicated to building a diverse, inclusive, and authentic workplace. So, if you're excited about this role but your past experience doesn't align perfectly with every item in the job description, we encourage you to apply anyway. You may be just the right candidate for this role.