Senior Software Engineer, Java | Mainline

This position is listed on behalf of a partner company, who manages all applications and next steps. Our partner is looking for a Senior Software Engineer, Java | Mainline based in the United States.

As a Senior Software Engineer, you will design and deliver scalable, high-performance software solutions that power a comprehensive IT operations platform. You will help develop and enhance mission-critical services used to manage and protect millions of endpoints and servers worldwide. Working with experienced engineers and cross-functional teams, you will influence architectural decisions, strengthen system reliability, and drive continuous product improvements. Your expertise in Java development and large-scale distributed systems will help ensure that applications remain secure, maintainable, and performant as the platform grows. You will also mentor fellow engineers, establish technical best practices, and take ownership of complex engineering initiatives. This remote-first opportunity combines meaningful technical challenges with a collaborative culture focused on quality, innovation, and customer success. \n

Accountabilities:

You will lead the development and continuous improvement of enterprise-grade software, combining hands-on engineering with technical leadership to deliver reliable, scalable solutions. Your responsibilities will include: Lead the design, development, and maintenance of large-scale software applications, ensuring high quality and alignment with engineering standards.

Influence critical architectural decisions to improve scalability, maintainability, performance, and long-term system reliability.

Balance technical debt, system performance, scalability requirements, and business priorities when making engineering decisions.

Design and implement robust APIs and RESTful services that support reliable communication between applications and systems.

Collaborate with cross-functional teams to align technical approaches, solve complex problems, and drive improvements across the product suite.

Mentor junior engineers, share best practices, and establish consistent technical standards across development projects.

Take ownership of technical initiatives from planning through implementation, proactively identifying and resolving engineering challenges.

Analyze feedback and data from support teams to identify recurring issues, improve system behavior, and enhance the customer experience.

Champion quality assurance practices, testing strategies, and code quality standards to ensure reliable software delivery.

Contribute to additional engineering priorities as needed to support team objectives and platform development.

Requirements: The ideal candidate is a seasoned software engineer with extensive Java development experience and a strong understanding of scalable system architecture. You combine deep technical expertise with sound architectural judgment, collaborative leadership, and a commitment to building high-quality software. Required qualifications include: A bachelor's degree in Computer Science, Computer Engineering, Information Technology, or equivalent professional experience.

At least 10 years of Java software development experience, particularly building product-oriented applications.

At least 5 years of experience designing, developing, or maintaining highly scalable systems.

Proven experience scaling software platforms and resolving complex system design and performance challenges.

Strong knowledge of object-oriented programming (OOP) principles, design patterns, and software engineering best practices.

Expertise in API design and RESTful services, with experience using frameworks such as Jersey or Spring.

Proficiency in relational database design, development, and optimization.

In-depth knowledge of software testing and quality assurance practices, with a track record of delivering robust applications.

Experience with caching technologies, particularly Redis, is an advantage.

Strong problem-solving and analytical skills, with the ability to make informed architectural decisions.

Excellent collaboration and communication skills, including the ability to mentor engineers and work effectively across teams.

A proactive approach to ownership, continuous improvement, and technical excellence.

Benefits: Annual base salary of $160,000–$200,000 for eligible roles based in California, Colorado, Maryland, New Jersey, New York, and Washington.

Comprehensive medical, dental, and vision insurance.

401(k) retirement plan.

Life insurance coverage.

Unlimited paid time off (PTO).

Flexible remote work arrangements for eligible U.S. residents, with hybrid options available at offices in Austin, Texas, and Tampa, Florida.

Opportunities for professional growth, career advancement, and technical leadership.

A collaborative, supportive, and curious engineering culture.

The opportunity to build and improve software supporting millions of endpoints across a global customer base.

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