Full-Time

Sdet – Mobile Applications

IOS/Android, III

Posted on 11/30/2025

Deadline 2/16/27
Lennox International

Lennox International

1,001-5,000 employees

Manufactures and distributes HVAC and refrigeration.

Compensation Overview

$95k - $125k/yr

+ BBI incentive (2%)

Farmers Branch, TX, USA

In Person

Category
Software Engineering (1)
Required Skills
Software Testing
iOS/Swift
Android Development
React Native
Requirements
  • BS in Electrical, Electronics, Computer or similar engineering discipline required. MS preferred.
  • 5+ years of professional experience in testing.
  • Strong understanding of mobile application development and testing methodologies, tools, and techniques.
  • Development experience on iOS and Android mobile platforms (iOS, Android) and devices.
  • Must be able to understand, and review developed code/design as well as create accurate test plans based on code/design reviews.
  • Be able to develop positive and negative test scenarios by modifying the existing developer code as needed.
  • Experience in testing APPs that connect to IOT hub devices.
  • Experience technically leading mobile testing teams.
  • Experience with various mobile platforms (iOS, Android) and devices.
  • Knowledge of software development lifecycles and testing methodologies.
  • Experience with automated testing tools and frameworks.
  • Experience in Mobile APP testing tools like Calabash, Ranorex or TestGrid.
  • Experience in Mobile APP frameworks React Native and Swift.
  • System verification of embedded products with graphical user interface and hardware I/O’s.
  • Experience with HVAC domain.
  • Knowledge in Software Engineering concepts, Quality processes and tools.
Responsibilities
  • Develop and execute iOS and Android Mobile APP test plans, test cases, and scripts to evaluate different aspects of mobile applications, including functionality, performance, usability, security, and compatibility.
  • Define testing scope, objectives, and deliverables for mobile testing activities.
  • Identify opportunities for APP test automation and implement automated testing solutions to improve efficiency and test coverage.
  • Utilize various testing methodologies and tools to ensure thorough and efficient testing.
  • Evaluate and recommend appropriate testing tools and technologies for mobile application testing.
  • Collaborate with stakeholders (product managers, developers, etc.) to understand application requirements and identify potential testing needs.
  • Oversee the execution of mobile application testing, including functional, performance, usability, security, and compatibility testing.
  • Work with team leads to monitor progress and ensure timely completion of testing activities.
  • Track and manage defects identified during testing, ensuring proper documentation and prioritization.
  • Analyze test results from QA, Field Trial and Production environments and identify areas for improvement in the mobile application.
  • Mentor a team of mobile testers, providing guidance, support, and training.
  • Foster a collaborative and productive work environment within the testing team.
  • Facilitate communication and knowledge sharing among team members.
  • Prepare and deliver comprehensive test reports to stakeholders, highlighting test results, defects, and recommendations.
  • Communicate effectively with stakeholders (developers, product managers, project managers) to provide updates on testing progress, risks, and issues.
  • Collaborate with development teams to resolve defects and improve application quality.
  • Participate in project meetings and provide insights into testing activities and results.
  • Ensure that mobile applications meet quality standards and adhere to best practices in testing and development.
  • Advocate for a culture of quality assurance within the development team.

Lennox International provides climate control solutions for homes and businesses across three segments: Residential Heating & Cooling, Commercial Heating & Cooling, and Refrigeration. It designs, manufactures, and sells HVAC and refrigeration products that heat, cool, ventilate, and control indoor environments. The company differentiates itself through vertical integration of manufacturing and distribution and by serving customers through direct sales, distributors, and company-owned parts stores, giving it broad reach. Its goal is to deliver reliable, efficient climate control and steady growth across its diversified product lines and channels.

Company Size

1,001-5,000

Company Stage

IPO

Headquarters

Richardson, Texas

Founded

1895

Simplify Jobs

Simplify's Take

What believers are saying

  • Building Climate Solutions segment grew 26% organically in Q1 2026 with 300 bps margin gain.
  • Raised 2026 revenue guidance to 8% growth, targeting $6.5B–$7.5B by 2030.
  • Analysts project 8.9% annualized growth through 2026, exceeding industry 6.8%.

What critics are saying

  • Home Comfort Solutions revenue fell 10% in Q1 2026, losing share to Carrier and Trane.
  • Mexico tariffs hit Saltillo facility, compressing margins 200–300 bps by Q4 2026.
  • Dealer consolidation by Comfort Systems USA erodes 10% of 7,000-installer network by 2026 end.

What makes Lennox International unique

  • Vertically integrated manufacturing in Saltillo Mexico and Marshalltown Iowa optimizes supply chain.
  • Ariston joint venture launched March 16, 2026, enters water heating market.
  • Samsung Lennox HVAC North America debuted February 4, 2025, expands ductless VRF offerings.

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Benefits

Health Insurance

Dental Insurance

Vision Insurance

Life Insurance

Disability Insurance

401(k) Company Match

401(k) Retirement Plan

Paid Vacation

Paid Sick Leave

Paid Holidays

Hybrid Work Options

Mental Health Support

Employee Stock Purchase Plan

Tuition Reimbursement

Unlimited Paid Time Off

Company News

PR Newswire
Mar 3rd, 2026
Lennox enters North American water heating market through Ariston joint venture

Lennox International has entered the North American residential water heating market through a joint venture with Ariston Group, with dealer orders beginning 16 March. The expansion combines Lennox's established dealer network with Ariston's water heating technology expertise. The new product line includes traditional and heat pump water heaters featuring heavy-gauge steel construction and PermaClad glass lining for corrosion protection. Select models offer energy-efficient operation with quiet performance and intelligent controls. Compatible systems integrate with the Lennox Home platform, allowing homeowners to monitor water heaters and thermostats together. The move enables Lennox dealers to offer complete home comfort solutions, bundling HVAC systems with water heating products. The company positions this as a natural extension of its whole-home comfort strategy, responding to dealer and homeowner demand for comprehensive offerings.

Yahoo Finance
Jan 28th, 2026
Lennox misses Q4 estimates with sales down 11% to $1.2B, guides below expectations for 2026

Lennox International, a climate control solutions company, reported fourth-quarter revenue of $1.20 billion, missing analyst estimates of $1.27 billion and marking an 11.2% year-on-year decline. The company's non-GAAP earnings per share of $4.45 also fell short of expectations by 5.7%. Operating margin decreased to 16.4% from 18.2% in the prior year period, whilst free cash flow margin improved to 31.5% from 20.2%. Adjusted EBITDA came in at $237.2 million, below the $249.3 million analyst consensus. For financial year 2026, Lennox issued adjusted EPS guidance of $24.25 at the midpoint, missing analyst estimates by 1.1%. CEO Alok Maskara highlighted that Lennox achieved annual margins exceeding 20% for the first time despite industry headwinds.

PR Newswire
Apr 23rd, 2025
Lennox Reports First Quarter Results

Q1 Highlights(All comparisons are year-over-year, unless otherwise noted) Revenue $1.1 billion, up 2%. GAAP Operating Income $156 million – Segment profit down 7% to $156 million. GAAP diluted EPS $3.37 – Adjusted diluted EPS down 3% to $3.37

PR Newswire
Mar 21st, 2025
Lennox Declares Quarterly Dividend

DALLAS, March 21, 2025 /PRNewswire/ -- The Lennox (NYSE: LII) Board of Directors approved a quarterly cash dividend of $1.15 per share of common stock, payable May 15, 2025, to stockholders of record as of April 30, 2025.About LennoxLennox (NYSE: LII) is a leader in energy-efficient climate-control solutions. Dedicated to sustainability and creating comfortable and healthier environments for our residential and commercial customers while reducing their carbon footprint, we lead the field in innovation with our cooling, heating, indoor air quality, and refrigeration systems. Additional information on Lennox is available at www.lennox.com.Media Contact[email protected]Investor Relations Contact[email protected]SOURCE Lennox International Inc

PR Newswire
Feb 19th, 2025
Lennox El297V Gas Furnace Wins Prestigious Good Design(R) Award

The EL297V gas furnace, recognized for its innovative design and exceptional value, joins the legacy of award-winning products from Lennox.DALLAS, Feb. 18, 2025 /PRNewswire/ -- Lennox (NYSE: LII), a leading provider of innovative climate control solutions, proudly announces the Elite Series EL297V Gas Furnace has been honored with a GOOD DESIGN® Award from The Chicago Athenaeum: Museum of Architecture and Design and Metropolitan Arts Press Ltd. The GOOD DESIGN® Award, established in 1950, is the world's oldest and most prestigious program celebrating innovation and sustainability in design. The recognition highlights the EL297V's innovative design, energy efficiency, and value

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