Lennox International

IOT Technical Architect

Lennox International$134K — $176K *
Information Technology
8 - 10 years of experience
Job Overview by Ladders

Qualifications

  • Bachelor's or Master's in Computer Science, Software Engineering, or related field with 10+ years of experience in enterprise software development.
  • 8+ years of hands-on Java experience with deep JVM expertise and performance tuning skills.
  • 5+ years of leading architecture across applications, platforms, data, cloud services, and production environments.
  • Proven experience in designing scalable and fault-tolerant enterprise systems and integration patterns.
  • Strong understanding of microservices, APIs, event-driven architecture, and cloud-native engineering patterns.

Responsibilities

  • Design scalable and fault-tolerant enterprise systems across distributed applications and cloud-native layers.
  • Define architecture patterns for AI-native capabilities and event-driven services at enterprise scale.
  • Spend over 50% of time on hands-on technical work including coding and performance tuning.
  • Translate business needs into architecture decisions and delivery-ready engineering plans.
  • Guide engineers through complex design trade-offs and ensure supportable solutions.
  • Collaborate with cross-functional teams to align technical delivery with business outcomes.
  • Create reusable patterns and documentation to standardize delivery across teams.

Benefits

  • Tuition reimbursement.
  • Medical, dental, and vision insurance.
  • 401(k) retirement plan.
  • 8 weeks paid birthing leave and 2 weeks paid bonding leave.
  • 12 days paid time off, plus additional well-being and volunteer days.
Full Job Description


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.


What We Are Looking For

  • 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


What We Offer

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.

About Lennox International

Lennox International is an American company that designs, manufactures, and markets HVAC equipment and services. The company's products include air conditioners, furnaces, heat pumps, packaged units, air handlers, and indoor air quality equipment. Lennox International was founded in 1895 and is headquartered in Richardson, Texas. The company operates in North America, Europe, and Asia. Lennox International is listed on the New York Stock Exchange (NYSE) and is a component of the S&P 500.
Learn more about Lennox International
Size
11,000 employees
Market Cap
$8.5 billion
Industry
Net Income
$356.3 million
Founded
1895
5 Year Trend
+2.9%
Revenue
$3.6 billion
NASDAQ

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