Lead Full Stack Engineer, Agentic AI

Job description

The Lead Full Stack Engineer role at Manulife/John Hancock, will focus on Global Retirement Technology, offering the opportunity

to sit at the intersection of enterprise engineering and cutting-edge Agentic AI. The position contributes to the company's transformation

mission by designing and operationalizing autonomous AI agents that automate complex workflows, enhance developer productivity,

and ...improve customer retirement journeys.

The successful candidate will serve as a technical leader and architect — shaping how AI is

adopted safely and responsibly across a large financial services organization.

They'll gain hands-on experience building real-world AI

agent systems at enterprise scale, with exposure to governance, compliance, and cross-divisional strategy.

This will be a high-impact opportunity

for an engineer to lead meaningful innovation while mentoring teams and influencing platform direction.

Position Responsibilities

• Design and implement autonomous AI agents (planner-executor, RAG-based) to automate internal workflows (code review,

• incident triage) and customer-facing journeys (plan enrollment, personalized nudges)

• Architect microservices, event-driven, and serverless cloud solutions; design APIs and event streams enabling safe agent

• action

• Embed AI governance controls including guardrails, prompt/content filtering, PII handling, bias checks, and human-in-theloop

• escalation

• Lead root cause analyses, observability integration, and AIOps for CI/CD and incident response

• Evaluate third-party AI platforms and model providers; lead cost/performance trade-off discussions

• Mentor engineers in AI-safe design, prompt engineering, agent orchestration, and evaluation practices

• Define success metrics (task completion rates, MTTR, customer outcomes) and operate agents with SLIs/SLOs

Required Qualifications

• 10+ years in Senior Digital Engineering roles, partnering with Architecture groups

• Hands-on experience with Java Spring Boot, .NET, React, Node.js, Python, and SQL at large scale

• Experience with cloud platforms, specifically AKS, with containerized services and model serving

• Proficiency with DevOps tooling: GitHub Actions, SonarQube, Fortify, Snyk

• Experience with monitoring/logging tools such as New Relic

• Knowledge of data platforms such as Azure Databricks and building compliant data pipelines

• Experience on large transformation projects including AI adoption roadmaps and governance

• Bachelor of Science in Computer Science or equivalent

• Financial Services experience preferred

Preferred Qualifications

• Experience with LLMs and orchestration frameworks such as LangChain/LangGraph and agent patterns (Planner-Executor)

• Building RAG systems using vector databases (e.g., Azure AI Search) and knowledge graphs; prompt engineering and

• evaluation

• Model hosting and inference experience (Azure OpenAI Service, Llama/OSS models) with cost/latency optimization

• Safety, compliance, and governance expertise: policy enforcement, PII/PCI handling, and auditability in regulated

• environments

• Strong MLOps/LLMOps skills: data curation, evals, telemetry, and prompt/version management

When you join our team:

• We’ll empower you to learn and grow the career you want.

• We’ll recognize and support you in a flexible environment where well-being and inclusion are more than just words.

• As part of our global team, we’ll support you in shaping the future you want to see.

If you are applying to this role in Massachusetts, please note the salary range is $127,330.00 - $ 236,470.00 USD.

Additionally, employees also have the opportunity to participate in incentive programs and earn incentive compensation tied to business and individual performance.

The role being advertised is an existing vacancy.

宏利金融有限公司是全球领先的金融服务提供商，致力于帮助大众轻松作出明智抉择，实现精彩人生。如欲了解更多关于我们的信息，请访问人寿保险-养老保险-健康保险-中宏保险官网 (manulife-sinochem.com).

宏利是平等機會僱主

在宏利／恒康，我們擁抱多元。我們致力於吸引、培養及挽留和所服務客戶同樣多元的員工，並從而營造包容的工作環境，接納文化和個體差異。我們矢志維持公平的招聘、挽留、晉升及薪酬制度，我們管理的所有實踐及項目不會因種族、血統、原籍地、膚色、族裔、國籍、宗教或宗教信仰、信仰、性別（包括懷孕及其相關情況）、性取向、遺傳特徵、退伍軍人身份、性別認同、性別表達、年齡、婚姻狀況、家庭狀況、殘疾或受適用法律保護的任何其他因素而區別對待。

我們的首要任務是消除障礙，為員工提供平等就業機會。人力資源部代表將盡力為應徵過程中提出要求的申請人提供合理協助。申請人要求提供協助所分享的信息將會按照適用法律及宏利／恒康政策儲存及使用。應徵過程中如需協助，請聯絡 hr@manulife.com。

Referenced Salary Location

Boston, Massachusetts

Working Arrangement

混合办公

Salary range is expected to be between

$127,330.00 USD - $236,470.00 USD

Employees also have the opportunity to participate in incentive programs and earn incentive compensation tied to business and individual performance.

The actual salary will vary depending on local market conditions, geography and relevant job-related factors such as knowledge, skills, qualifications, experience, and education/training.

If you are applying for this role outside of the primary location, please contact hr@manulife.com for the salary range for your location.

Manulife/John Hancock offers eligible employees a wide array of customizable benefits, including health, dental, mental health, vision, short- and long-term disability, life and AD&D insurance coverage, adoption/surrogacy and wellness benefits, and employee/family assistance plans.

We also offer eligible employees various retirement savings plans (including pension/401(k) savings plans and a global share ownership plan with employer matching contributions) and financial education and counseling resources.

Our generous paid time off program in the U.

S. includes up to 11 paid holidays, 3 personal days, 150 hours of vacation, and 40 hours of sick time (or more where required by law) each year, and we offer the full range of statutory leaves of absence.

We use data and analytics technologies, such as artificial intelligence (AI), and automated processing tools, to analyze and process the information you provide to us or third parties in the application process.

For more information, please refer to our personal information collection statement.

Know Your Rights I Family & Medical Leave I Employee Polygraph Protection I Right to Work I E-Verify

Company: John Hancock Life Insurance Company (U.

S.A.)

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