Application Developer Manager Jobs in Rochester, NY

Lenel/S2 is looking for a driven professional to join its Cloud Engineering/Managed Services team to onboard and secure the On-Guard AWS hosted single-tenant environments for our key customers, as well as helping us automate sustainable and repeatable architecture for future growth. 

Do you enjoy working from the customer perspective and diving deep on issues?  As a system development engineer, you will be responsible for the overall health of our AWS cloud-based managed service and develop key automation tools for our customers. You will create availability and health metrics, monitor performance, perform regular system maintenance, and architect innovative solutions running our On-Guard Cloud access control system in a large, distributed environment. 

You will automate routine tasks enabling the team to be quick and agile. You'll be one of our experts in system automation for Lenel On-Guard Cloud on AWS. You'll work closely with internal customers to understand their operational challenges and provide successful outcomes. You will work closely with our key customers onboarding and afterwards supporting their expansions and issues. You should enjoy digging deep to find answers, sometimes this will require reverse engineering existing solutions, a situation you thrive in.

This is a customer-facing position.

A day in the life of an OnGuard Cloud Team Member 

If you thrive in an environment where every day is different, OnGuard Cloud is that team: engineers switch between onboarding projects, automation design, troubleshooting, and collaboration with internal and customer teams. 

We help customers reduce technical debt by replacing legacy onpremises access control servers and migrating them to the AWShosted OnGuard Cloud Access Control System.

Our team fully manages the customer's OnGuard application, the OnGuard infrastructure, and the underlying AWS environment to ensure high availability and strong cybersecurity.

We onboard both existing OnGuard customers and "greenfield" customers who are new to the platform, which makes every onboarding project unique.

We support the latest OnGuard versions, so customers benefit from improved availability, performance, quality, and newly released features.

Engineers on this team design new automated solutions and enhance monitoring of access control systems. The team works from a robust backlog of features and user stories to improve shared processes with internal Honeywell teams (for example, automated certificate rotation), our automation platforms, and our customers.

About the team

The Managed Services Team within Lenel/S2, is a new premium service offering to our key customers.  With the introduction of Cloud-based solutions, our team is offering another way to up-level our customers' experience with us.  We want to help them go beyond security using our products to support their bottom line.  This is a new team with expansive opportunities to shape the future of how we offer our On-Guard software as a Service

YOU MUST HAVE

3 - 6 years of experience using Amazon Web Services (S3, EC2, VPC, etc.) or other cloud platforms, where you can leverage cloud IaaS experience and gain knowledge of AWS. This is a HEAVY AWS position.

3-6 years of proven Networking experience, IDEAL with Cloud experience:

1. AWS Basic Understanding, Networking Experience
   1. IaC,
   2. VPCs,
   3. VPN Tunnels,
   4. Powershell,
   5. Typescript/Javascript,
   6. CloudWatch
   7. Lambda
2. Networking Experience:
   1. Public/Private IPs,
   2. Subnets,
   3. Firewall & Port Configuration,
   4. Packets,
   5. etc.
3. Database management (SQL) and Windows Patching
4. Encryption (At Rest and In Flight)

3 - 6years proven ability to troubleshoot and identify the root cause of issues.

3 - 6years PowerShell, Python, and C# most preferred.

3+ years' experience working with third-party and supporting internal/third-party RESTful web services and other APIs and SOAP-based APIs.

3+ years of experience in the Dev-Ops work streams using infrastructure-as-code (IaC) and automation software such as AWS SSM, Ansible, or Chef.

3+ years of experience with configuring, securing, patching, and managing Windows Server 2012, 2016, 2019, 2022, 2025 and Hyper-V (or VMware)

3+ years of experience with optimizing relational databases (SQL Server, MySQL, PostgreSQL)

Ability to work 24/7 on-call rotation as needed with others.

WE VALUE

Bachelor's degree in Systems Engineering, Information Technology, Computer Science, or related field.

2+ years of automation tooling and scripting/programming experience, such as CI/CD Pipelines, Ansible, PHP, Visual Basic, .Net, Ruby, Java, and C.

2+ years of experience with Linux or Windows systems administration and/or related development.

2+ years of understanding of systems development lifecycle from conception to delivery (mostly a Kanban framework.)

2+ years of experience administering/operating Lenel On-Guard 7.x, 8.x

2+ years proven ability to collaborate alongside current team members to create innovative managed solutions and tools for internal teams and customers.

Proven experience creating documentation for production systems

Experience in 24/7 online environment

"The annual base salary range for this position in California and New York (excluding most major metropolitan areas), Colorado, Connecticut, and Hawaii is $91,200- $137,000. For Washington and most major metropolitan areas in New York & California, the annual base salary range is $94,400- $142,000. Please note that this salary information serves as a general guideline. Honeywell considers various factors when extending an offer, including but not limited to the scope and responsibilities of the position, the candidate's work experience, education and training, key skills, as well as market and business considerations"

BENEFITS OF WORKING FOR HONEYWELL

In addition to a competitive salary, leading-edge work, and developing solutions side-by-side with dedicated experts in their fields, Honeywell employees are eligible for a comprehensive benefits package. This package includes employer subsidized Medical, Dental, Vision, and Life Insurance; Short-Term and Long-Term Disability; 401(k) match, Flexible Spending Accounts, Health Savings Accounts, EAP, and Educational Assistance; Parental Leave, Paid Time Off (for vacation, personal business, sick time, and parental leave), and 12 Paid Holidays.Learn more

The application period for the job is estimated to be 40 days from the job posting date; however, this may be shortened or extended depending on business needs and the availability of qualified candidates. Job Posting Date: 7/6/2026.

Due to compliance with U.S. export control laws and regulations, candidate must be a U.S. Person, which is defined as, a U.S. citizen, a U.S. permanent resident, or have protected status in the U.S. under asylum or refugee status or have the ability to obtain an export authorization.

ABOUT HONEYWELL

Honeywell International Inc. (Nasdaq: HON) invents and commercializes technologies that address some of the world's most critical challenges around energy, safety, security, productivity, and global urbanization. We are a leading software-industrial company committed to introducing state of the art technology solutions to improve efficiency, productivity, sustainability, and safety in high growth businesses in broad-based, attractive industrial end markets. Our products and solutions enable a safer, more comfortable, and more productive world, enhancing the quality of life of people around the globe.Learn more

THE BUSINESS UNIT

Honeywell Building Automation (BA) is a leading global provider of products, software, solutions, and technologies that enable building owners and occupants to ensure their facilities are safe, energy efficient, sustainable, and productive. BA products and services include advanced software applications for building control and optimization; sensors, switches, control systems, and instruments for energy management; access control; video surveillance; fire products; and installation, maintenance, and upgrades of systems. Revenues in 2022 for BA were $6B and there are approximately 18,000 employees globally. To learn more, please visithttps://buildings.honeywell.com/

Honeywell is an equal opportunity employer. Qualified applicants will be considered without regard to age, race, creed, color, national origin, ancestry, marital status, affectional or sexual orientation, gender identity or expression, disability, nationality, sex, religion, or veteran status.Learn more

Key responsibilities

• Build, scale, and secure the underlying AWS infrastructure that hosts Lenel On-Guard.
• Manage OS and collaborate with software developers, as well as end-users to diagnose issues
• Management of infrastructure services, application deployments, cloud services, and monitoring
• Provide visibility into business and systems performance metrics
• Work as the Lenel/S2 and AWS teams to maintain, manage and enhance the platform
• Expanding our configuration management infrastructure to enable rapid deployment of new services
• Working with Information/Cyber Security to perform security audits and proactively make recommendations/improvements.
• Participate in 24x7 on-call rotation
• Develop engineering and automated deployments for IaaS system configurations on IaaS.
• Collaborate with engineers both internal and external to our team to troubleshoot and redline documented procedures
• Implement engineering changes to the system as required
• Responsible for integrating and testing software and/or hardware components required by customers.