Role OverviewClient is seeking highly skilled Python Software Engineers to support complex data workloads and AI‑driven systems. This role is ideal for engineers who are deeply hands‑on with Python and PySpark, comfortable working in production environments, and experienced contributing to or actively engaging with open‑source communities.This position will focus on building production‑grade APIs, scalable data pipelines, and developer tooling, while collaborating across engineering, product, and data teams.Top Requirement: Candidates must be very strong in Python and PySpark. This is non‑negotiable and should be the primary focus during technical screening.Key ResponsibilitiesDesign and develop production‑grade Python services and APIs supporting AI and data platformsBuild and optimize PySpark workloads to support large‑scale data processingContribute to AI systems and complex data pipelines in production environmentsDevelop developer tooling to streamline the software delivery lifecycleImplement observability, monitoring, and performance optimization strategiesPractice infrastructure‑as‑code and deployment automationCollaborate with engineering, product, and data teams on architecture and system designParticipate in and contribute to technical discussions and design reviewsRequired Skills & ExperienceStrong Python expertise (primary language)Strong PySpark experience working with large datasets5+ years of professional software engineering experience, primarily in PythonBachelor’s or Master’s degree in Computer Science, Software Engineering, or related fieldExperience contributing to open‑source projectsCode contributions, PRs, orMeaningful participation via issues, discussions, or proposals in major libraries (data science, ML, or LLM ecosystems)Strong experience with Git and platforms such as GitHub, GitLab, or BitbucketExperience developing APIs using FastAPIExperience with ML / data libraries such as Scikit‑Learn, TensorFlow, or similarExperience working with cloud platforms (AWS, GCP, or Azure)Experience with containers, orchestration systems, and serverless technologiesStrong communication skills and ability to articulate technical decisions clearlyNice to HaveExperience with LangChain and/or LangFlowBackground supporting LLM‑based or AI‑driven applicationsExperience building data‑intensive platforms in productionExposure to distributed systems and large‑scale data architectures