Senior Software Engineer

What You'll Do:

As a Senior Software Engineer, you'll play a key role in building and maintaining ADT's Java-based platform systems that support our home security services. You'll work as an individual contributor on a distributed platform team, contributing to large-scale systems deployed in cloud and containerized environments. Design, build, and maintain Java-based software supporting platform capabilities and new features Write high-quality, production-ready code and resolve defects across the software lifecycle Design technical solutions for new features, often with limited input or well-defined requirements Troubleshoot and resolve issues identified in QA and production environments Ensure long-term performance, scalability, and reliability of platform systems Research, evaluate, and promote technical solutions to support platform goals Estimate development effort for new projects and enhancements Mentor junior engineers on coding practices, system design, and software lifecycle concepts Collaborate with engineers across a distributed team to deliver reliable, scalable solutions Leverage AI-assisted development tools, where appropriate, to improve development workflows

What You'll Need:

8+ years of professional experience developing software in Java Experience working within large, complex codebases and distributed systems Experience designing and supporting backend services and APIs (REST and/or WebSockets) Experience working with data storage technologies such as SQL, key-value stores, or document databases Experience deploying or supporting applications in cloud environments (GCP and/or AWS) Familiarity with containerized or cloud-native environments (e.g., Kubernetes) Experience with Git-based version control Experience working in Agile development environments and using Agile tools Scripting experience using Bash and/or Python Strong problem-solving skills and attention to detail Ability to independently research and apply new technologies Ability to manage time effectively while working across multiple initiatives

Skills That Set You Apart:

Comfort designing solutions with limited direction Ability to balance independent work with seeking input from peers Experience mentoring or supporting less experienced engineers A positive, can-do attitude and strong ownership mindset Ability to think strategically while delivering tactical results

Los Angeles Applicants:

Qualified applications with arrest or conviction records will be considered for employment in accordance with the Los Angeles County Fair Chance Ordinance for Employers and the California Fair Chance Act.​

Philadelphia Applicants:

Background checks will be conducted during the employment process. Any information will be reviewed through an individualized assessment in accordance with the Philadelphia Fair Criminal Record Screening Standards Ordinance.

Workstyle:

Hybrid schedule - employees work onsite a minimum of four days per week, with one remote day. Five days onsite may be required based on business needs. Applicants must be authorized to work for any employer in the U.S. We are unable to support or sponsor any U.S. immigration benefit (such as, but not limited to, H-1B, TN, STEM OPT) at this time.

Compensation & Benefits:

The salary range for this role is $98,000.00 - $182,000.00 and is based on experience and qualifications. Certain roles are eligible for annual bonus and may include equity. These awards are allocated based on company and individual performance. We offer employees access to healthcare benefits, a 401(k) plan and company match, short-term and long-term disability coverage, life insurance, wellbeing benefits and paid time off among others. Employees accrue up to 120 hours in their first year. Your accrual rate increases after your first year. We also offer 6 paid holidays. The anticipated application end date will be on 05/20/2026.