Senior Software Engineer, Client Engineering

Primary Responsibilities

• Design, build, and maintain Python-based services and APIs that support client onboarding, data ingestion, validation, and reporting.
• Own systems end to end, from technical design and implementation through deployment, monitoring, and production support.
• Build reliable, observable, and well‑tested platforms that handle business‑critical financial data at scale.
• Contribute to full‑stack components when required, including internal tools and client‑facing reporting interfaces.

• Lead the design of scalable, maintainable system architectures with a strong emphasis on correctness, performance, and operational simplicity.
• Make pragmatic architectural decisions that balance near‑term delivery with long‑term platform health.
• Continuously improve existing systems by reducing technical debt and operational risk.

• Design and implement workflow‑driven systems that orchestrate onboarding, approvals, validations, and reporting processes.
• Translate complex client, operational, and regulatory requirements into efficient and well‑engineered workflows.
• Drive automation and self‑service capabilities across the client lifecycle.

• Act as a senior technical mentor, setting a high bar for engineering quality, ownership, and accountability.
• Partner closely with Product, Data, Operations, Security, and Compliance teams to deliver solutions aligned with business priorities.
• Provide hands‑on technical input into planning, estimation, and prioritization.

• 6+ years of professional software engineering experience, with deep expertise in back‑end development.
• Advanced proficiency in Python and modern Python frameworks (e.g., FastAPI, Flask, Django).
• Strong software engineering fundamentals, including system design, data modeling, testing, and code quality.
• Experience building distributed systems, APIs, and data‑intensive applications.
• Strong SQL skills and experience working with relational databases in production.
• Experience operating and supporting systems in production environments with high reliability and correctness requirements.
• Proven ability to take ownership and deliver independently in a high‑expectation environment.
• Ability to thrive in a fast‑paced, dynamic environment, balancing multiple tasks simultaneously.
• Entrepreneurial mindset with a strong sense of initiative and drive.
• Collaboration and adept working with professionals of all levels.

• Full‑stack experience with modern front‑end technologies (e.g., React, Type Script).
• Experience designing and building workflow‑based systems, including onboarding pipelines and approval or orchestration frameworks.
• Experience working with or building AI‑powered solutions, such as:
  • LLM‑driven automation or decision support
  • Intelligent document processing or data extraction
  • AI‑assisted reporting, validation, or client‑facing tooling
• Experience with cloud platforms (AWS preferred) and infrastructure‑as‑code.
• Familiarity with financial services, client reporting, onboarding processes, or regulated environments.
• Exposure to event‑driven architectures, messaging systems, or data pipelines.

$140,000 - $205,000
The base salary range for this position is listed above. This position is also eligible for a discretionary annual bonus based on personal, team, and Firm performance. Compensation ranges are based on several factors including job function, level, and geographic location. Final offer amounts are determined by multiple factors including candidate experience and expertise, and may vary from the amounts listed here.

Apollo relies on its people to keep it a leader in alternative investment management, and the firm’s benefit programs are crafted to offer meaningful coverage for both you and your family. Please reach out to your Human Capital Business Partner for more detailed information on specific benefits.

The firm and its affiliates comply with applicable discrimination and equal opportunities legislation in all of its jurisdictions and do not discriminate in employment or recruitment based on race, color, religion, gender, national origin, veteran status, disability, age, citizenship, marital or domestic/civil partnership status, sexual orientation, gender identity or expression or any other protected characteristic under applicable law.