Are you a hardworking Engineering Manager. API Technologies looking for an excellent opportunity? This could be a tremendous role to explore! Aon is in the business of better decisions. At Aon, we shape decisions for the better to protect and enrich the lives of people around the world. As an organization, we are united through trust as one inclusive, diverse team, and we are passionate about helping our colleagues and clients succeed.
What the day will look like At Aon, as the Engineering Manager, of an Application Programming Interface (API) group, you will lead a team of engineers and vendors to deliver scalable, high-quality API solutions. Your role combines technical leadership with strategic alignment, staying hands-on through design reviews and code exemplars while coordinating closely with Product and Architecture to define the API roadmap and standards.
The person in this role will be responsible for the API catalog and developer portal, ensuring documentation and SDKs remain current, and work with Service Managers to align API capabilities with business needs. Leading all aspects of the entire API lifecycle, the individual in this role will handle versioning, compatibility, deprecation, and migration to ensure smooth transitions for all users.
You will maintain robust CI/CD pipelines in Azure DevOps, drive comprehensive testing, and provide self-serve environments for partners. Platform operations will be driven by a strong emphasis on observability, security, and incident response, applying tools like DataDog and New Relic.
Vendor management will be a part of the remit, ensuring delivery to standards and effective knowledge transfer. Throughout, you will champion continuous improvement and strong cross-team collaboration, ensuring the API platform consistently delivers business value!
Responsibilities: - Deliver new versions of core APIs, setting clear SLAs and SLOs while providing a structured deprecation path for legacy endpoints.
- Create and maintain golden paths for API development, including OpenAPI-first workflows, contracts, and reusable CI/CD templates.
- Standardize error handling and HTTP status codes, ensuring consistent use of correlation IDs and trace propagation for observability.
- Integrate non-functional requirements into delivery, performance metrics such as latency, availability, and throughput. Track adoption through usage key performance indicators.
- Lead capacity planning and load testing, applying resilience patterns like retries, idempotency, and circuit breakers, and conducting regular chaos testing.
- Responsible for client onboarding processes, leading API credentials, key rotation, rate limits, and quotas to ensure secure and efficient access.
- Coordinate change calendars and lead cross-team dependencies to keep multiple concurrent workstreams aligned.
- Ensure services remain audit-ready by maintaining strict access controls, change logs, data retention policies, and compliance evidence within delivery pipelines.
- Optimize infrastructure and resource costs by right-sizing compute, caching, and data storage while maintaining service levels.
- Champion team growth through regular one-on-one meetings, actionable feedback, collaborative sessions, and clear performance expectations.
Skills and Experience That Will Lead to Success - At least 7 years of software engineering experience, including 2+ leading API teams or delivery as a technical lead or engineering manager
- Deep expertise in .NET 9 Core, with a strong understanding of modern API design and implementation
- Advanced experience with Azure services, including API Management, AKS (Kubernetes), Azure SQL, Cosmos DB, Service Bus, and Event Hubs
- Proficiency in OpenAPI/Swagger, schema governance, semantic versioning, and backward-compatibility strategies
- Bake NFRs into DoD: p95/p99 latency, availability, throughput, startup time; track adoption and usage KPIs.
- Hands-on experience building and maintaining CI/CD pipelines in Azure DevOps (YAML), using trunk-based development, feature flags, and code ownership practices
- Demonstrated ability to implement and manage robust testing strategies, including contract testing (such as Pact), performance testing (k6 or JMeter), mocks, stubs, and automated pipeline gates
- Strong background in observability, including distributed tracing, RED/USE metrics, SLOs, error budgets, and burn-rate alerting
- Proven experience delivering secure APIs, with practical knowledge of OAuth2, mTLS, threat modeling, and secrets management
- Solid understanding of data fundamentals, including SQL modeling, indexing, idempotency, and event-driven patterns
- Practical experience managing vendor relationships, setting measurable SLAs, and ensuring knowledge transfer through gated deliveries
- Effective cross-team collaboration and communication skills, with the ability to align technical work with business objectives
- Bachelor's degree in a technical field or equivalent professional experience
Preferred - Familiarity with infrastructure as code (Terraform), policy as code, and cloud cost optimization
- Experience supporting partner or externally facing APIs, including developer portal management, quota enforcement, and monetization strategies
- Understanding of compliance frameworks such as PCI or SOX, with experience maintaining audit-ready SDLC processes
How we support our colleagues In addition to our comprehensive benefits package, we encourage an inclusive workforce. Plus, our agile environment allows you to manage your wellbeing and work/life balance, ensuring you can be your best self at Aon. Furthermore, all colleagues enjoy two "Global Wellbeing Days" each year, encouraging you to take time to focus on yourself. We offer a variety of working style solutions for our colleagues as well.
Our continuous learning culture inspires and equips you to learn, share and grow, helping you achieve your fullest potential. As a result, at Aon, you are more connected, more relevant, and more valued.
Aon values an innovative and inclusive workplace where all colleagues feel empowered to be their authentic selves. Aon is proud to be an equal opportunity workplace.
Aon provides equal employment opportunities to all employees and applicants for employment without regard to race, color, religion, creed, sex, sexual orientation, gender identity, national origin, age, disability, veteran, marital, domestic partner status, or other legally protected status. People with criminal histories are encouraged to apply.
We are committed to providing equal employment opportunities and fostering an inclusive workplace. If you require accommodations during the application or interview process, please let us know. You can request accommodations by emailing us at or your recruiter. We will work with you to meet your needs and ensure a fair and equitable experience.
For positions in San Francisco and Los Angeles, we will consider for employment qualified applicants with arrest and conviction record in accordance with local Fair Chance ordinances.
Aon is not accepting unsolicited resumes from search firms for this position. If you are a search firm, you will not be compensated in any way for your submission of a candidate, even if Aon hires that candidate. Nothing in this job description restricts management's right to assign or reassign duties and responsibilities to this job at any time.
Pay Transparency Laws: The salary range for this position (intended for U.S. applicants) is $130k-$150k annually. The actual salary will vary based on applicant's education, experience, skills, and abilities, as well as internal equity and alignment with market data. The salary may also be adjusted based on applicant's geographic location.
A summary of all the benefits offered for this position: Aon offers a comprehensive package of benefits for full-time and regular part-time colleagues, including, but not limited to: a 401(k) savings plan with employer contributions; an employee stock purchase plan; consideration for long-term incentive awards at Aon's discretion; medical, dental and vision insurance, various types of leaves of absence, paid time off, including 12 paid holidays throughout the calendar year, 15 days of paid vacation per year, paid sick leave as provided under state and local paid sick leave laws, short-term disability and optional long-term disability, health savings account, health care and dependent care reimbursement accounts, employee and dependent life insurance and supplemental life and AD&D insurance; optional personal insurance policies, adoption assistance, tuition assistance, commuter benefits, and an employee assistance program that includes free counseling sessions. Eligibility for benefits is governed by the applicable plan documents and policies.
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