Senior Software Development Engineer - Python

About Us:
Planful is the pioneer of financial performance management cloud software. The Planful platform, which helps businesses drive peak financial performance, is used around the globe to streamline business-wide planning, budgeting, consolidations, reporting, and analytics. Planful empowers finance, accounting, and business users to plan confidently, close faster, and report accurately. More than 1,500 customers, including Bose, Boston Red Sox, Five Guys, Grafton Plc, Gousto, Specialized and Zappos rely on Planful to accelerate cycle times, increase productivity, and improve accuracy. Planful is a private company backed by Vector Capital, a leading global private equity firm. Learn more at planful.com.About the Role:We are looking for self-driven, self-motivated, and passionate technical experts who would love to join us in solving the hardest problems in the EPM space. If you are capable of diving deep into our tech stack to glean through memory allocations, floating point calculations, and data indexing (in addition to many others), come join us.Requirements:

• 5+ years in a mid-level Python Engineer role, preferably in analytics or fintech.
• Expert in Python (Flask, Django, pandas, NumPy, SciPy, scikit-learn) with hands-on performance tuning.
• Familiarity with AI-assisted development tools and IDEs (Cursor, Windsurf) and modern editor integrations (VS Code + Cline).
• Exposure to libraries supporting time-series forecasting.
• Proficient in SQL for complex queries on large datasets.
• Excellent analytical thinking, problem-solving, and communication skills.
  

Nice to have:

• Shape financial time-series data: outlier detection/handling, missing-value imputation, techniques for small/limited datasets.
• Profile & optimize Python code (vectorization, multiprocessing, cProfile).
• Monitor model performance and iterate to improve accuracy.
• Collaborate with data scientists and stakeholders to integrate solutions.
  

Why Planful
Planful exists to enrich the world by helping our customers and our people achieve peak performance. To foster the best in class work we're so proud of, we've created a best in class culture, including:

• 2 Volunteer days, Birthday PTO, and quarterly company Wellness Days
• 3 months supply of diapers and meal deliveries for the first month of your Maternity/Paternity leave
• Annual Planful Palooza, our in-person, company-wide culture
• Company-wide Mentorship program with Executive sponsorship of CFO and Manager-specific monthly training programs
• Employee Resource Groups such as Women of Planful, LatinX at Planful, Parents of Planful, and many We encourage our teammates to bring their authentic selves to the team, and have full support in creating new ERGs & communities along the way.