Python Developer

THIS JOB DESCRIPTION WAS CREATED BY AI, REVIEW BEFORE POSTINGSenior Software Engineer – Python / PySpark (Mainframe Modernization)Location:    San Francisco, CADuration:  12 months Job ID: 176553Team ObjectiveThe team is responsible for modernizing a core mainframe-based financial application by rewriting it onto a distributed platform.This application serves as the front door for financial data, acting as the system of record (SLR) and feeding downstream general ledger systems.The platform is embedded within Corporate Accounting and plays a critical role in enterprise financial reporting and controls.Role Summary:Client is seeking a Senior Software Engineer with deep backend expertise to join a Scrum-based delivery team modernizing a mission-critical financial system.This role is heavily backend-focused, with strong emphasis on Python and PySpark, while also contributing to frontend development using React and Angular as needed.This candidate will serve as a technical SME, guiding a team that is actively upskilling from mainframe technologies into modern Python-based platforms.While this is not a people-lead role, the position requires strong mentorship, technical guidance, and exceptional communication skills.The engineer will work closely with Product Owners, Lines of Business, and Operations teams, and must be comfortable presenting technical concepts to both technical and non-technical audiences.Key Responsibilities:Design, develop, and modernize backend services to replace legacy mainframe functionality on a distributed platformBuild and maintain data ingestion, validation, and transformation pipelines using Python and PySparkDevelop and support APIs using FastAPI and/or FlaskCollaborate within a Scrum team, partnering closely with Product Owners, LOB stakeholders, and OperationsAct as a Python SME, mentoring engineers transitioning from mainframe technologiesContribute to frontend development using React and Angular when requiredEnsure data accuracy and integrity for financial feeds flowing into general ledger systemsParticipate in technical design discussions, code reviews, and architecture decisionsCommunicate effectively through documentation, presentations, and stakeholder discussionsSupport CI/CD pipelines and cloud-native deployments using containerized platformsRequired Qualifications:7 plus years of relevant professional software engineering experienceStrong expertise in Python, with production experience using PySparkBackend experience with FastAPI and/or FlaskFrontend experience with React and/or AngularExperience with SQL Server and/or ExadataHands-on experience with Kafka or other streaming platformsExperience working in Agile / Scrum delivery modelsStrong communication, presentation, and stakeholder engagement skillsAbility to guide and mentor other engineers as a senior technical contributorPreferred / Nice-to-Have Skills:Agentic AI frameworks: LangGraph, LangChain, A2AProgramming Languages: Java, Scala, SQL, HiveQLBig Data Technologies: Hadoop, Spark, HDFS, Hive, Cloudera, HortonworksCloud Platforms: AWS (Glue, Lambda, Redshift, S3, CloudWatch)ETL / ELT Tools: AWS Glue, PySpark, DatabricksData Integration & Migration: Hadoop ecosystems, Kafka, real-time streaming, data lakesData Modeling: dimensional models, structured and unstructured data processingCI/CD & Automation: GitHub Actions, Azure DevOps, Jenkins, Git, Autosys, AirflowContainerization and Orchestration: KubernetesRequired Skills:Full Stack PythonFrontEnd: React/AngularBackend: FastAPI / FlaskData layer: SQLServer/ExadataStreaming: KafkaAgentic AI: LangGraph, LangChain, A2A (Good to Have)CI/CD: (GitHub Actions / Azure DevOps), KubernatesIndustry Background (Preferred):Experience in financial institutions or enterprise accounting environments is highly desirableFamiliarity with financial data flows, general ledger concepts, and accounting terminology is a plus, though strong technical expertise is the primary requirementIdeal Candidate Profile:Senior-level individual contributor with strong backend engineering depthComfortable serving as an SME and mentor without formal people-management responsibilitiesConfident presenter with the ability to explain complex systems clearlyAdaptable, collaborative, and effective in cross-functional environmentsIn this contingent resource assignment, candidates may:Consult on complex initiatives with broad impact and large-scale planning for Software Engineering.Review and analyze complex multi-faceted, larger scale or longer-term Software Engineering challenges that require in-depth evaluation of multiple factors including intangibles or unprecedented factors.Contribute to the resolution of complex and multi-faceted situations requiring solid understanding of the function, policies, procedures, and compliance requirements that meet deliverables.Strategically collaborate and consult with client personnel.Required Qualifications:5 plus years of Software Engineering experience, or equivalent demonstrated through one or a combination of the following: work or consulting experience, training, military experience, education.Pay Range: $75 - $85 on W2 The specific compensation for this position will be determined by a number of factors, including the scope, complexity and location of the role as well as the cost of labor in the market; the skills, education, training, credentials and experience of the candidate; and other conditions of employment. Our full-time consultants have access to benefits including medical, dental, vision and 401K contributions as well as any other PTO, sick leave, and other benefits mandated by appliable state or localities where you reside or work.If you receive a suspicious message, email, or phone call claiming to be from PTR Global do not respond or click on any links. Instead, contact us directly at +1 214-740-2424. To report any concerns, please email us at legal@pinnacle1.com…