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Lennox (NYSE: LII) Driven by 130 years of legacy, HVAC and refrigeration success, Lennox provides our residential and commercial customers with industry-leading climate-control solutions. At Lennox, we win as a team, aiming for excellence and delivering innovative, sustainable products and services. Our culture guides us and creates a workplace where all employees feel heard and welcomed. Lennox is a global community that values each team member’s contributions and offers a supportive environment for career development. Come, stay, and grow with us.

We are seeking a hands-on technical architect to design and deliver highly scalable, reliable, secure, and fault-tolerant enterprise systems for IOT with an AI first mindset. This role combines deep Java engineering expertise with practical architecture ownership and day-to-day leadership of technical staff. The ideal candidate can write production-quality code, guide design decisions, remove delivery blockers, and raise the engineering bar across the team. 

This is not a pure advisory architecture role. The expectation is strong hands-on development ownership combined with technical leadership.

What Drives Success

• AI-first engineering mindset with hands-on ability to rapidly prototype and productionize solutions using modern AI coding tools such as Claude Code, Git Hub Copilot, and similar systems
• Expert hands-on Java engineering depth, including JVM internals, compiler behavior, concurrency, memory management, and performance optimization
• Proven ability to design highly scalable, reliable, secure, and fault-tolerant enterprise platforms with clear trade-off decisions within IoT platforms, Building Management Systems, connected equipment, telemetry environments
• Lead from the front by setting technical direction, reviewing designs and code, mentoring engineers, and unblocking complex delivery challenges
• Delivery-focused technical leadership with accountability for architecture quality, engineering execution, and production readiness

Job Duties

• Architecture & System Design
• Design scalable, reliable, secure, and fault-tolerant enterprise systems across distributed applications, integration, data, and cloud-native layers.
• Define architecture patterns for AI-native capabilities, APIs, event-driven services, observability, resiliency, and performance at enterprise scale.
• Evaluate technology options and define pragmatic technical direction across cloud, APIs, event-driven services, integrations, observability, and automation. 
• Technical Leadership & Delivery

• Spend 50%+ of time on hands-on technical work including coding, design reviews, debugging, performance tuning, AI-assisted development, and complex issue resolution.

• Translate business and product needs into practical architecture decisions, technical roadmaps, and delivery-ready engineering plans.

• Write production-quality code daily in Java and/or Python, while also guiding implementation across TypeScript/JavaScript, React, APIs, and distributed platform services.

• Guide engineers through complex design and implementation trade-offs while ensuring solutions remain practical, supportable, and delivery ready.
• Lead technical staff through architecture execution, sprint delivery, code reviews, quality gates, and production readiness activities.
• Partner with product owners, business stakeholders, architects, QA, DevOps, and infrastructure teams to ensure technical delivery aligns with business outcomes.
• Own technical delivery risks, remove engineering blockers, and ensure designs are implemented with measurable quality, reliability, and performance outcomes.
• Enterprise Platform & Integration Expertise
• Design enterprise-grade integration patterns across internal systems, external platforms, APIs, data pipelines, and real-time/event-driven architectures.

• Understand infrastructure layers from Kubernetes and cloud-native runtime operations to GPU inference stacks, model-serving patterns, and scalable workload deployment.

• Ensure solutions are observable, secure, resilient, cost-aware, and supportable in production environments.

• Establish strong practices across automated testing, CI/CD, observability, rollout safety, incident response, production support, and operational excellence.

• Create reusable technical patterns, reference architectures, documentation, and engineering playbooks to standardize delivery across teams.

• Bachelor’s, Master’s, or equivalent experience in Computer Science, Software Engineering, Information Technology, or related technical discipline with 10+ years building and operating enterprise software
• Within 10+ years -

• 8 years of hands-on Java engineering experience with deep knowledge of JVM internals, compiler behavior, concurrency, memory management, and performance tunin
• 5+ years leading architecture across applications, platform, data, cloud-native services, APIs, integrations, and high-availability production platforms

• Demonstrated experience designing highly scalable, reliable, secure, fault-tolerant, and production-ready enterprise systems
• Strong architecture experience with microservices, APIs, event-driven architecture, integration design, DevSecOps, observability, and cloud-native engineering patterns
• Experience applying AI-native development practices, AI/ML or GenAI services, automation frameworks, and intelligent system design patterns
• Familiarity with multi-agent systems, skills, MCP integrations, agent-to-agent tooling.
• Hands-on experience building modern full-stack and platform systems using technologies such as TypeScript/JavaScript, React, Python, Go, Java, APIs, and distributed infrastructure
• Ability to leverage AI coding tools such as Claude Code, Git Hub Copilot and similar systems to improve engineering productivity and development workflows
• Proven ability to lead technical teams while remaining hands-on in design, coding, code reviews, troubleshooting, and delivery execution
• Strong judgment, communication, and cross-functional leadership skills, with the ability to prosper in unclear environments and stay highly hands-on through delivery

Compensation: This is a salaried exempt role. The starting salary range for this role and market is between $134,000 - $176,400 annually. Factors that may affect starting salary include geography/market and the skills, education, experience, and other qualifications of the successful candidate. Employees in this role are also eligible for an annual bonus in accordance with the terms of the Company’s applicable plan. Employees in this role are not eligible for overtime.

Benefits: Subject to applicable eligibility requirements, the following benefits are offered for this role: tuition reimbursement; medical, dental, and vision insurance; prescription drug coverage; 401(k) retirement plan; short-term disability insurance; 8 weeks paid birthing leave; 2 weeks paid bonding leave; life and long-term disability insurance.

Depending on date of hire, and subject to applicable eligibility requirements, new employees in this role also receive up to: 12 days paid time off, 2 paid well-being days, 1 paid volunteer day, 12 paid holidays, and 3 floating holidays per year.

Our Culture: At Lennox, our Core Values of Integrity, Respect & Excellence are ingrained in the fabric of the organization. They define our culture – which is about how we do business and how we treat others. Lennox is not just a workplace; we are a global community that values each team member’s contributions. As an equal opportunity employer, we are committed to recruit, develop, and retain talented individuals from a wide range of backgrounds, ensuring that everyone has the opportunity to succeed and contribute to our continued growth and success. At Lennox, you’ll take pride in our brands, knowing you are part of something special. Come, stay, and grow with us! 

Disclaimers: The compensation and benefits information is accurate as of the date of this posting. Lennox reserves the right to modify this information at any time, with or without notice, subject to applicable law.

We may use automated tools, including artificial intelligence, to support parts of our hiring process, such as application review and interview scheduling. These tools assist our teams but do not replace human decision-making. If you need an accommodation or have questions, please contact CandidateAccommodations@Lennox.com.