Senior Software Engineer, AI Platform
Avantos.ai
New York, NY · Posted October 29, 2026
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November 2026
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Rankings about data & analytics jobs
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- Best cities for data and analytics pay after cost of living #1 Foster ($232k)
- Most requested AI skills in data and analytics jobs #1 Machine learning engineering (17.1%)
- AI tools named most often in data and analytics jobs #1 Databricks (7.6%)
- Employers with the most data and analytics jobs #1 Amazon (711 roles)
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Pay compared with the market
This listing does not state pay. Across 615 open senior software engineer listings that state pay, the middle half runs $170,500 to $222,000 and the median is $199,000.
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How AI is used in this kind of work
Among software developers, AI is already used for some of the tasks. Measured exposure for software developers: 29% (some).
Share of this job’s tasks that AI is already used for at work, from real usage. It is not a forecast of job loss, and a low number means no use seen yet. Source: Anthropic Economic Index.
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About the job
Company Overview
Avantos AI is shaping the future of client relationship management by reimagining it through the lens of artificial intelligence. We are building the industry’s first AI-native operating system for financial services, transforming how firms onboard clients, deliver advice, and manage critical servicing workflows. Our platform consolidates fragmented data, automates complex processes, and embeds intelligent decision-making throughout every stage of the client lifecycle.
Supported by Bessemer Ventures and MIT’s investment arm, our team comprises execution-focused, design-driven, product-centric founders and leaders from Wharton, MIT, top design programs, and unicorn SaaS companies. We move swiftly, tackle deep industry challenges, and build technology that empowers users to take charge of their workflows.
If you thrive on client impact, innovative product design, and tackling complex problems, Avantos is the place for you.
About the Role
We’re looking for a Senior Full Stack Engineer with strong backend and applied AI experience to join our AI engineering team. You’ll productize and scale our intelligence platform while connecting its capabilities to the product.
Responsibilities
- Build and productize reusable AI platform capabilities for other engineering teams.
- Own backend services, APIs, and integrations, primarily in TypeScript with Go where needed.
- Deliver full-stack features connecting AI capabilities to React/Next.js product experiences.
- Improve scalability, reliability, and performance through sound architecture, testing, troubleshooting, and on-call participation after ramping.
- Use coding agents to accelerate delivery while maintaining ownership of planning, code quality, review, and validation.
- Collaborate across engineering, product, and design; communicate proactively, share ownership, and commit to team decisions.
Minimum Qualifications
- Senior-level experience shipping and owning production software at scale.
- Hands-on applied generative AI engineering experience building intelligence layers or AI-enabled products.
- Strong backend engineering and API design skills in TypeScript or another transferable language.
- Full-stack capability, including the ability to build and maintain modern web interfaces.
- Sound system design judgment across scalability, reliability, performance, and engineering tradeoffs.
- High autonomy and accountability, with clear communication and sound decisions in ambiguous environments.
Preferred Qualifications
- Experience with Python and/or Go.
- Experience with AI evaluations, integrity systems, or recommendation capabilities.
- Prior startup experience or experience productizing early-stage platforms.
- Financial-services, fintech, or data-intensive product experience.
What We Offer
- Competitive compensation + meaningful equity.
- Opportunity to shape and scale an AI platform for financial services.
- A culture optimized for engineering excellence, focus, deep work, and ownership.