Demo

Full Stack Engineer React/.NET

Guardian Life
Holmdel, NJ Full Time
POSTED ON 4/14/2026
AVAILABLE BEFORE 6/15/2026
We are actively seeking a proactive, creative Senior Software Engineer who will be responsible for architectural design and implementation of Guardian's next-generation web self-service platforms APIs using .Net Core, C#.

You will:

  • Design, develop, and deploy high-volume, high-usage self-service web portals and APIs, utilizing .Net Core, C#, React, Next.js, and responsive CSS.
  • Collaborate with Technical Teams, Technical Manager, Project Manager and subject matter experts from businesses and work closely with SMEs to understand, plan and implement.
  • Ensure compliance with security, privacy, legal, infrastructure, and administrative/corporate processes and policies.
  • Lead code reviews and administer paired programming.
  • Provide unique insight into the analysis of customer business requirements that may cross multiple functional areas and/or multiple technical platforms and understand the broad strategic implications.
  • Act independently and as part of a team to translate business and technical requirements into well-engineered, tested, and deployed applications.
  • Jump in and hit the ground running with a positive attitude.

You have:

  • 5 years of experience successfully developing APIs using C#, .NET Core, and building modern web applications using React and Next.js.
  • Strong .NET & C# expertise on backend services with async programming and memory management.
  • Strong proficiency in front-end development with React, Next.js, JavaScript/TypeScript, HTML5, and responsive CSS (Flexbox, Grid, media queries).
  • Experienced in object-oriented programming and design patterns.
  • Experience building responsive, cross-browser compatible user interfaces.
  • 5 years working with Web API (.NET core), REST Services, WCF or SOAP Services.
  • 4 years of experience developing and maintaining front-end applications using React and/or Next.js.
  • 4 years of experience in database principles, such as SQL
  • Working experience with Splunk (logging), AppDynamics, JSON/XML, Caching, Performance Analysis & Profiling,
  • Experience resolving code smells, vulnerabilities, and application security flaws.
  • Experience with front-end testing frameworks and tools (e.g., Jest, React Testing Library) is a plus.
  • Experience with source code repositories tools, BitBucket, GitHub.
  • Professional experience with CI/CD pipelines, Aws, ECS, Docker and Kubernetes
  • Ability to interact and communicate successfully with business partners and technology teams.
  • Strong knowledge of release/build/configuration management practices.
  • Strong understanding of software best-practices as it applies to web and business application development with hands on architecture design and development experience required in building APIs and front-end applications for large scale platforms.
  • Demonstrable understanding of object-oriented design/development, functional programming, service-oriented architecture, and modern front-end frameworks.
  • Ability to prioritize and manage work, adhering to critical and aggressive project timelines in a fast-paced environment.
  • Extensive experience in Software Development Life Cycle Management using Kanban, Scrum, or Scaled Agile is required.
  • Experience working in a rapid and agile development environment with frequent deliveries.
  • Passion for building seamless user experiences and collaborating across the stack.

Location:

  • Three days a week at a Guardian office in Holmdel, NJ, Bethlehem, PA or New York, NY.

Salary Range:

$95,170.00 - $156,355.00

The salary range reflected above is a good faith estimate of base pay for the primary location of the position. The salary for this position ultimately will be determined based on the education, experience, knowledge, and abilities of the successful candidate. In addition to salary, this role may also be eligible for annual, sales, or other incentive compensation.

Our Promise

At Guardian, you’ll have the support and flexibility to achieve your professional and personal goals. Through skill-building, leadership development and philanthropic opportunities, we provide opportunities to build communities and grow your career, surrounded by diverse colleagues with high ethical standards.

Inspire Well-Being

As part of Guardian’s Purpose – to inspire well-being – we are committed to offering contemporary, supportive, flexible, and inclusive benefits and resources to our colleagues. Explore our company benefits at www.guardianlife.com/careers/corporate/benefits. Benefits apply to full-time eligible employees. Interns are not eligible for most Company benefits.

Equal Employment Opportunity

Guardian is an equal opportunity employer. All qualified applicants will be considered for employment without regard to age, race, color, creed, religion, sex, affectional or sexual orientation, national origin, ancestry, marital status, disability, military or veteran status, or any other classification protected by applicable law.

Accommodations

Guardian is committed to providing access, equal opportunity and reasonable accommodation for individuals with disabilities in employment, its services, programs, and activities. Guardian also provides reasonable accommodations to qualified job applicants (and employees) to accommodate the individual's known limitations related to pregnancy, childbirth, or related medical conditions, unless doing so would create an undue hardship. If reasonable accommodation is needed to participate in the job application or interview process, to perform essential job functions, and/or to receive other benefits and privileges of employment, please contact MyHR@glic.com. Please note: this resource is for accommodation requests only. For all other inquires related to your application and careers at Guardian, refer to the Guardian Careers site.

Visa Sponsorship

Guardian is not currently or in the foreseeable future sponsoring employment visas. In order to be a successful applicant. you must be legally authorized to work in the United States, without the need for employer sponsorship.

Current Guardian Colleagues: Please apply through the internal Jobs Hub in Workday.

Salary : $95,170 - $156,355

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