Principal Jave Technical Architect

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 members contributions and offers a supportive environment for career development. Come stay and grow with us.

Location: Stone Mountain GA (This position is 100% onsite in Stone Mountain GA requiring attendance in-office 5 days a week Monday-Friday)

We are seeking a highly technical hands-on Technical Architect to lead the design and delivery ofhighly reliable fault tolerant enterprise platforms built with an AI-first engineering mindset. In this role you will architect scalable secure resilient and cloud-native solutions while remaining actively involved in software design development and technical problem-solving

Success in this role requires deep Java engineering expertise strong architectural vision and the ability to lead through influence. Youll write production-quality code drive key technical decisions mentor engineers remove complex delivery obstacles and continuously elevate engineering standards across the organization.

If you thrive at the intersection of architecture innovation and hands-on development this is an opportunity to shape the future of intelligent connected systems.

DUTIES INCLUDE BUT ARE NOT LIMITED TO:

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.

#LI-SJ1 #LI-onsite

• Bachelors degree in Computer Science Software Engineering Information Technology or a related technical discipline. Masters degree preferred.
• 10 years of experience building and operating enterprise software including:
  • 8 years of hands-on Java engineering experience with deep expertise in JVM internals compiler behavior concurrency memory management and performance optimization.
  • 5 years leading enterprise architecture across applications cloud-native platforms APIs integrations data and highly available production systems.
• Proven experience designing scalable reliable secure fault-tolerant and production-ready enterprise platforms including distributed systems IoT platforms Building Management Systems (BMS) connected devices and telemetry environments.
• Strong architecture experience with microservices APIs event-driven architecture integration patterns DevSecOps observability and cloud-native engineering.
• Hands-on experience developing modern full-stack and platform solutions using technologies such as Java TypeScript/JavaScript React Python Go APIs and distributed infrastructure.
• Experience applying AI-native development practices AI/ML or GenAI services automation frameworks intelligent system design patterns and AI-assisted engineering tools such as Claude Code GitHub Copilot or similar platforms to accelerate software delivery.
• Familiarity with multi-agent AI systems Model Context Protocol (MCP) integrations agent-to-agent communication and emerging AI orchestration frameworks.
• Proven ability to lead highly technical engineering teams while remaining hands-on with architecture software design coding code reviews troubleshooting mentoring and delivery execution.
• Demonstrated ability to establish technical direction drive architecture quality ensure production readiness and lead engineering execution across cross-functional teams.
• Strong communication collaboration and decision-making skills with the ability to navigate ambiguity evaluate technical tradeoffs and deliver high-impact solutions.

Compensation: This is a salaried exempt role. The starting salary range for this role and market is between $134000 - $176400 annually.This position is also eligible for the Short Term Incentive (STI) bonus program with a target payout of 10%. 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 Companys 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 members 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 youll 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.

#LI-SJ1 #LI-onsite

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