Senior Software Engineer, API Platform

Posted 3 Days Ago
New York, NY, USA
Hybrid
160K-200K Annually
Senior level
Artificial Intelligence • Fintech • Healthtech • HR Tech • Insurance • Machine Learning • Software
Nayya brings innovation, personalization, and confidence to the fingertips of every employee.
The Role
Design, build, and operate backend APIs and services powering products, partner integrations, and AI agents. Own services end-to-end, set API standards, improve developer experience, ensure observability and reliability, mentor engineers, and partner with security to maintain compliance.
Summary Generated by Built In

About Nayya

Founded in 2019, Nayya is on a mission to connect people’s most important information, so they can thrive in their health and wealth. Powered by AI and advanced analytics, Nayya’s platform transforms complex benefits experiences into intuitive, seamless, and ongoing interactions—meeting people's real world needs. As a trusted platform and partner to leading employers, benefits solutions, and HR tech providers, Nayya unlocks long-term value through helping employees live more resilient lives. Backed by strategic investors like ICONIQ, Felicis Ventures, SemperVirens, Workday Ventures, MetLife Nextgen Ventures, and ADP Ventures, Nayya is ushering in the future of health and wealth for all.

 

About the team

The API Platform team builds the foundation everything else at Nayya runs on, the APIs, services, and developer tools that power our products and our partner integrations. When a carrier sends us data, an HR platform calls a Nayya endpoint, or MCP tool via it’s agent it goes through our platform.

We're now building toward a future where AI agents are first-class consumers of our platform. That means designing APIs, tools, and protocols that agents and MCP servers ours and our partners' can use safely, predictably, and at scale to act on behalf of members. If you're excited about shaping what an "agent-native" benefits platform looks like, this is the team to do it on.

What you'll do
  • Design, build, and operate the APIs and services that power Nayya's products, partner integrations, and AI agents
  • Make our platform genuinely great for agents to consume, clear schemas, predictable behavior, strong guardrails, idempotency, and the observability needed to debug non-deterministic callers
  • Define Nayya's agent-facing infrastructure: tool definitions, MCP-style protocols, agent authentication and authorization, action auditing, and safety controls
  • Own services end-to-end, from architecture through deployment, monitoring, and on-call
  • Improve the developer experience for internal teams, external partners, and the AI engineers building on top of the platform
  • Set technical direction for the API Platform: API standards, versioning, authentication, rate limiting, and observability
  • Mentor engineers across the company, raise the bar on design reviews, and help shape engineering culture
  • Partner closely with security and infrastructure to keep us fast, reliable, and HIPAA-compliant
What we're looking for
  • 6+ years of professional software engineering experience, with significant time building backend services and public or partner-facing APIs
  • Deep expertise in API design (REST, GraphQL, or gRPC), distributed systems, and the tradeoffs that come with both
  • Strong production experience with any of Python / Go / Node / Typescript / Ruby on Rails on AWS.
  • A point of view on what makes an API or tool good (or bad) for an AI agent to use, and the instincts to design for that from day one
  • Track record of leading projects that span multiple teams, and mentoring the engineers around you
  • Comfortable owning operational quality observability, on-call, incident response, and continuous improvement
  • Excellent written and verbal communication; you can explain a technical decision to engineers, PMs, and partners equally well
Nice to have
  • Hands-on experience building with LLMs — function/tool calling, prompt and context design, evals, and the patterns that make AI systems work reliably in production
  • Experience designing or shipping agent-facing infrastructure — MCP servers, tool catalogs, agent gateways, or similar
  • Familiarity with agent frameworks (LangChain, LlamaIndex, LangGraph, etc.) and evaluation tooling for LLM applications
  • Experience with authentication and authorization patterns for agents acting on behalf of users (delegated auth, scoped tokens, action approval flows)
  • Experience in healthtech, fintech, insurance, or other regulated industries
  • Working knowledge of HIPAA, SOC 2, or similar compliance frameworks
  • Open-source contributions or public technical writing
Why Nayya
  • Direct impact on a problem that touches almost every working American
  • A team that takes ownership seriously and ships
  • Competitive compensation, equity, and a benefits package worthy of a benefits company

The salary range for New York based candidates for this role is $160,000- $200,000. We use a location factor to adjust this range for candidates that are located outside of geographic region of our New York office. Placement within the salary band is determined based on experience. 

Nayya is proud to be an Equal Employment Opportunity employer. We do not discriminate based upon race, religion, color, national origin, gender (including pregnancy, childbirth, or related medical conditions), sexual orientation, gender identity, gender expression, age, status as a protected veteran, status as an individual with a disability, or other applicable legally protected characteristics

Skills Required

  • 6+ years of professional software engineering experience
  • Significant experience building backend services and public or partner-facing APIs
  • Deep expertise in API design (REST, GraphQL, or gRPC)
  • Production experience with Python, Go, Node.js, TypeScript, or Ruby on Rails on AWS
  • Experience owning services end-to-end including architecture, deployment, monitoring, and on-call
  • Strong production experience with distributed systems and tradeoffs (idempotency, rate limiting, versioning)
  • Track record of leading cross-team projects and mentoring engineers
  • Comfortable with operational quality, observability, incident response, and continuous improvement
  • Excellent written and verbal communication
  • Hands-on experience building with LLMs, function/tool calling, prompt and context design, and evals
  • Experience designing or shipping agent-facing infrastructure (MCP servers, tool catalogs, agent gateways)
  • Familiarity with agent frameworks (LangChain, LlamaIndex, LangGraph) and evaluation tooling
  • Experience with authentication and authorization patterns for delegated agent actions
  • Experience in healthtech, fintech, insurance, or other regulated industries
  • Working knowledge of HIPAA, SOC 2, or similar compliance frameworks
  • Open-source contributions or public technical writing

Nayya Compensation & Benefits Highlights

The following summarizes recurring compensation and benefits themes identified from responses generated by popular LLMs to common candidate questions about Nayya and has not been reviewed or approved by Nayya.

  • Leave & Time Off Breadth Leave options are positioned as expansive, including unlimited PTO and additional time-off concepts like company “health days” and a possible sabbatical program. Time-off flexibility is presented as a meaningful component of the overall rewards package, subject to confirming how policies work in practice.
  • Healthcare Strength Health coverage is framed as comprehensive, spanning medical, dental, vision, and mental-health/EAP support. Wellness programs are also repeatedly surfaced as part of the package, reinforcing a health-forward benefits posture.
  • Retirement Support Retirement support is described as including a 401(k) with an employer match. This is presented as a core, modern benefit that can materially add to total rewards depending on match terms and vesting.

Nayya Insights

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The Company
HQ: New York, NY
150 Employees
Year Founded: 2019

What We Do

At Nayya, we believe there is a better way to choose benefits. A more transparent, less confusing way where consumers feel more confident in their decisions. We focus on decision support and benefits engagement. It’s one of the most stressful and challenging situations consumers face – and we see that as an opportunity to do good. We’re excited to deliver a new experience to consumers, where they choose their benefits through our software, data and AI engine. We are a benefits technology company that aims to bring peace and confidence to consumers as it relates to their employee benefits. Nayya is revolutionizing the way people interact with their benefits by serving as a data-driven advisor across the benefits lifecycle.

Why Work With Us

We are redefining an industry and seeking mission-driven, team oriented colleagues to join us. We empower each Nayyan to take on complex projects that will help transform how consumers choose and use benefits. We believe feedback helps us and our teams grow and transparency and cross-functional collaboration are key to success. Grow with us.

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