[Remote] Senior Software Engineer (MarketPlace)

Note: The job is a remote job and is open to candidates in USA. OneStream Software delivers a unified Corporate Performance Management (CPM) platform designed for large enterprises. The Senior Software Engineer will design, develop, and deliver features within OneStream solutions, ensuring performance and maintainability while mentoring other engineers and leading technical discussions.ResponsibilitiesDesign, develop, and maintain complex software features and services within OneStream, including requirements translation, technical design, implementation, validation, deployment, and ongoing production supportLead implementation efforts for moderately to highly complex features, ensuring scalability, performance, maintainability, and reliabilityDrive technical design discussions and contribute to architectural decisions aligning with platform standards and reference architecturesBuild and maintain user interface solutions using modern UI frameworks including Angular, React, Blazor, and WPFMake and defend technical decisions within owned areas while aligning with broader architectural standardsEnsure JSON and XML data contracts, schemas, and integrations are well designed, documented, and backward compatibleDesign and evolve APIs, SDKs, and extensibility mechanisms used by internal teams and partnersProactively identify opportunities to improve system performance, reliability, and developer productivityLead and participate in formal code reviews, act as a trusted reviewer and approverMentor and support Software Engineers through guidance on design, coding standards, and best practicesCollaborate cross-functionally to translate business requirements into technical solutions and proactively identify opportunities to improve system performance, reliability, and developer productivityContribute to CI/CD improvements, automation, testing strategies, and overall engineering quality initiativesOwn complex features and components end to end, including design, implementation, testing, deployment, and ongoing production supportUse AI-assisted development tools to accelerate development, refactoring, test creation, and documentation, while critically evaluating and refining AI-generated output to ensure correctness, security, performance, and architectural alignmentPartner with peers to diagnose and resolve production issues, ensuring system reliability and performanceSkillsBachelor's degree in Computer Science, Engineering, or a related technical field, or equivalent experience4-10 years of professional software development experienceStrong proficiency in C#, .NET, and ASP.NET, and related frameworksExperience building user interfaces with modern UI frameworks including Angular, React, Blazor, and WPFDeep understanding of RESTful API design and service-oriented architecturesStrong experience designing, maintaining, and evolving JSON contracts in enterprise applicationsExperience with performance tuning, memory management, and SQL query optimizationStrong experience with Git-based workflows and CI/CD pipelinesExperience reviewing unit tests and ensuring adequate test coverageExperience building extensible platforms, frameworks, or SDKsFamiliarity with SaaS architectures, distributed systems, or multi-tenant applicationsExperience with deployment automation and DevOps practicesDomain experience in financial systems, EPM, or CPM solutionsBenefitsVisionMedicalLifeDental401KExcellent Medical Plan.Dental & Vision Insurance.Life Insurance.Short & Long Term Disability.Vacation Time.Paid Holidays.Professional Development.Retirement Plan.Company OverviewOneStream Software is an independent software company that develops a financial planning and analysis software. It was founded in 2012, and is headquartered in Rochester, Michigan, USA, with a workforce of 1001-5000 employees. Its website is https://www.onestream.com.