Sr Engineer, Enterprise Applications Modernization

11 11 Systems•USA - Virtual, US,

4h•$125,000 - $145,000•Remote

About The Position

11:11 Systems is looking for a Senior Engineer to design, build, and scale an AI-powered Applications and Integrations Modernization solution enabling faster, more predictable, and repeatable transformation of legacy applications and integrations at scale. The ideal candidate will be energetic, adaptable, detail oriented, capable of understanding a diverse set of business systems, and knowledgeable of how data flows across systems. They must have exceptional skills and discipline for making people, process, and technology work together to deliver mission-critical business outcomes.

Requirements

Bachelor’s degree in Computer Science or a related field of study, or equivalent years of related work experience required
5+ years’ experience in large-scale cloud or application and integrations modernization programs
Strong expertise in cloud architecture (AWS and/or Azure)
Hands-on experience or strong interest in AI-driven software modernization, including tools such as GitHub Copilot, Copilot Agents, Claude, or Codex
Proven experience with CI/CD pipelines and developer toolchains (e.g., GitHub, automation pipelines, quality tooling)
Experience in integrations architecture, design, development, delivery, and support using Mulesoft ESB or equivalent tool
Domain knowledge and experience with CRM, ERP, and ITSM applications, and integrations between the applications
Exposure to SQL, J2EE/Web Services, HTTP/SOAP, XML, XSD, XSLT, WSSE, REST, RAML, WSDL, UDDI, JSON
Experience driving cross-functional transformation initiatives
Ability to apply architectural principles to business solutions and to recognize structural issues within the organization, functional interdependencies and cross-silo redundancies
Experience modeling business processes using a variety of tools and techniques
Experience with managing and supporting technical standards and architecture designs
Experience with Scrum methodology and Agile practices
Strong project management, time management, and problem-solving skills
Strong written and verbal communication, documentation, and organization skills
Positive outlook, can-do attitude and able to work using their own initiative
Passion for innovation and proven track record of inspiring team members to innovate and collaborate
Must be legally eligible to work in the United States without visa sponsorship

Responsibilities

Support the modernization of legacy applications, integrations, and workflows
Use approved AI tools such as GitHub Copilot, Claude, Codex, and similar tools to assist with code analysis, documentation, refactoring support, test generation, and modernization research under senior engineering guidance
Design and standardize modernization and migration framework for transforming applications and integrations
Establish scalable, reuseable frameworks for enterprise applications and integrations transformation and modernization
Work with the Manager/Principal Architect and Application development teams from strategy to solution to implementation and support of applications and integrations
Work closely with the Business Analysts on the understanding of functional and technical system requirements for architecting, designing and delivering solutions to meet business needs
Create solution designs that leverage the architecture standards and services to meet key project design criteria including Availability, Recoverability, Scalability, and Performance
Coordinate with other team members in the development of the integrations architecture roadmap that aligns with the strategic objectives of business groups and different technology groups
Build AI-first pipelines leveraging Claude, Codex, GitHub Copilot, agentic AI, and complementary tooling
Define and promote new ways of working for AI-driven transformation
Incorporate lean principles in all projects prior to the design phase
Provide architectural and technical input for definition, estimation and delivery of projects and solutions
Keep abreast of changes in technology regarding applications and integrations architecture, design and development
Work closely with the support team in managing tier III escalations and providing timely and quality production support to our business users
Work closely with Agile teams to deliver incremental software releases and enhancements
Work supportively with colleagues, operating in a manner that is consistent with 11:11’s Code of Business Ethics and Company Values
Responsibly receive, transmit, and handle company data and information per Company data handling agreements, work procedures and policies
Review and follow company policies and guidelines, data privacy practices, including annual compliance training certification and policy acknowledgements
Additional duties as assigned