Senior Software Engineer

An exciting career awaits you At MPC, we’re committed to being a great place to work – one that welcomes new ideas, encourages diverse perspectives, develops our people, and fosters a collaborative team environment. Position Summary We are seeking a highly skilled, experienced, and strategic Senior Software Engineer to be a leader within our Software Development Team in the Midstream and Refining IT organization. The ideal candidate will possess a robust background in Software Development, strong Azure skills, DevSecOps knowledge, and a deep understanding of application security best practices. Additionally, excellent leadership and strong communication skills are essential. This role demands an influencer who champions Software Development with best practices, continuous improvement, AI, and automation. The successful candidate will drive innovation within the department and ensure our development processes are efficient, secure, and modern. This position belongs to a family of jobs with increasing responsibility, competency, and skill level. Actual position title and pay grade will be based on the selected candidate’s experience and qualifications. Key Responsibilities Leads efforts from end-to-end through delegation, review, and driving results holistically; leads medium complexity features from technical design through completion. Executes a defined software engineering roadmap, contributing to the organization's engineering and technology strategy. Performs coding, debugging, testing and troubleshooting throughout the development process in projects with moderate to high complexity under limited or no supervision. Identifies and recommends improvements to the software development lifecycle and best practices in agile engineering. Conducts demos of application features and designs features to support automated testability. Conducts research, design and prototyping and experience on a cross-functional team. Works with users to translate designs and solution architecture into design specifications. Organizes the delivery of high-quality, innovative solution or deliverables, setting effort estimates and continuously collaborating and updating the specifications, in line with user requirements. Coordinates and implements new architectures, standards, methods and logic for enterprise software in accordance with business strategies and specifications. Ensures proper documentation of software design and works with business partners to design and implement solution to meet architecture standards. Owns and improves the technical health of assigned applications, including maintainability, performance, reliability, security, scalability, and technical debt. Partners with Product Owners, Product Managers, Architects, Scrum Masters, RTEs, business partners, and delivery stakeholders to align technical execution with product priorities and enterprise direction. Champions continuous improvement, automation, AI-enabled engineering practices, DevSecOps, and modern software development approaches. Mentors engineers and supports onboarding through hands‑on technical guidance, feedback, knowledge sharing, and coaching. Proactively identifies and resolves technical risks, integration issues, code quality gaps, performance concerns, and cross‑team dependencies. Represents the team in technical forums and communicates risks, recommendations, and technical information clearly to technical and non-technical stakeholders. Education and Experience Bachelor’s Degree in Information Technology, related field, or equivalent experience required 5+ years of relevant IT experience Experience as a full-stack developer, with a focus on the Microsoft programming technology stack, including C#, BLAZOR, .NET Core, Microsoft SQL Server, Azure, Infrastructure as Code (IaC) and related technologies preferred. Understanding of Agile development methodologies, software release management, and DevSecOps principles and practices is preferred. Background and experience in Oil & Gas Commercial industry is preferred. AZ-204 Certification is highly desired Python Proficiency is a plus Key Skills Agile Methodologies - Agile project management is an iterative approach to delivering a project throughout its life cycle, taking incremental steps towards the completion of a project. Application Security – Refers to the measures and practices implemented to protect software applications from security threats and vulnerabilities. Cloud Computing - Knowing how to manage cloud services, develop cloud applications and use cloud architecture to meet customer needs. Continuous Improvement - Identifies and leads opportunities for continuous improvement and value creation, both incremental and large-scale Debugging - The process of finding and resolving bugs within computer programs, software, or systems. DevSecOps - A set of practices that automates the integration of security at every phase of the software development lifecycle, from initial design through integration, testing, deployment, and software delivery, with an aim towards shortening the systems development life cycle and pas well as continuous delivery and a security first approach. General Programming – Applies a computer language to communicate with computers using a set of instructions and to automate the execution of tasks. Log Monitoring – Logging and monitoring are crucial aspects of software development that involve capturing and analyzing information about a software system's behavior, performance, and errors. Software Development Lifecycle (SDLC) – A process used by the software industry to design, develop and test high quality softwares. Software Testing – An investigation conducted to provide stakeholders with information about the quality of the software product or service under test. Version Control System – Software tool that helps engineers and other collaborators manage changes to source code, documents, and other files over time Location: San Antonio, Texas Additional locations: Findlay, Ohio Job Requisition ID: 00022834 Location Address: 19100 Ridgewood Pkwy Employee Group: Full time Employee Subgroup: Regular Marathon Petroleum offers a total rewards program which includes, but is not limited to, access to health, vision, and dental insurance, paid time off, 401k matching program, paid parental leave, and educational reimbursement. Detailed benefit information is available at The hired candidate will also be eligible for a discretionary company-sponsored annual bonus program. Marathon Petroleum Company LP is an Equal Opportunity Employer and gives consideration for employment to qualified applicants without discrimination on the basis of race, color, religion, creed, sex, gender (including pregnancy, childbirth, breastfeeding or related medical conditions), sexual orientation, gender identity, gender expression, reproductive health decision‑making, age, mental or physical disability, medical condition or AIDS/HIV status, ancestry, national origin, genetic information, military, veteran status, marital status, citizenship or any other status protected by applicable federal, state, or local laws. Equal Opportunity Employer: Veteran / Disability We will consider all qualified Applicants for employment, including those with arrest or conviction records, in a manner consistent with the requirements of applicable state and local laws. In reviewing criminal history in connection with a conditional offer of employment, Marathon will consider the key responsibilities of the role. About Marathon Petroleum Corporation Marathon Petroleum Corporation (MPC) is a leading, integrated, downstream energy company headquartered in Findlay, Ohio. The company operates the nation’s largest refining system. MPC’s marketing system includes branded locations across the United States, including Marathon brand retail outlets. MPC also owns the general partner and majority limited partner interest in MPLX LP, a midstream company that owns and operates gathering, processing, and fractionation assets, as well as crude oil and light product transportation and logistics infrastructure. #J-18808-Ljbffr