Senior Full Stack Engineer

Alight Solutions; Deerfield (IL); Remote; USD 170,000 - 230,000; Full time

Job summary

Alight Solutions is seeking a Senior Full Stack Engineer to help transform the Worklife experience by translating product concepts into secure, maintainable services, APIs, data models, and user experiences.

You will own architectural decisions while collaborating with engineering, product, UX, and data teams to deliver robust production systems and scalable solutions across the benefits ecosystem. This role may involve occasional travel to office locations.

Qualifications

• 6+ years of software engineering experience with ownership of production applications.
• Strong experience with backend services, API design, data modeling, and modern frontend development.
• Experience designing and building complex B2B applications or workflow-driven products.
• Ability to turn ambiguity into clear technical decisions and working software.
• Experience integrating capabilities into existing products and ecosystems.
• Ability to lead technical work across teams through collaboration and influence.
• Experience using AI-assisted development tools within disciplined software engineering practices.
• Experience integrating applications with data or AI-enabled services.
• Experience improving the reliability, observability, and operational efficiency of production applications.

Responsibilities

• Designing and evolving application architecture, data models, workflows, and business logic.
• Building APIs and services connecting Worklife with the Alight Data Engine.
• Developing and integrate intuitive administrative and user-facing experiences.
• Establishing reusable engineering patterns for security, testing, observability, deployment, and reliability.
• Turning emerging product requirements into practical technical solutions and incremental delivery.
• Leading technical execution across Engineering, Product, UX, Data, and platform teams.
• Building production-ready services, APIs, workflows, automated tests, telemetry, and operational documentation.

Skills

Backend services

API design

Data modeling

Frontend development

AI tools

Team leadership

Job description

Our Story

At Alight, we believe a company’s success starts with its people. Alight embraces values that come directly from our people – purposeful, human, united and growth-minded – reflecting our inclusive culture and promise that our clients expect. We are passionate about connecting purpose with impact. Alight empowers clients to build a healthier and more financially secure workforce by unifying the benefits ecosystem across health, wealth, wellbeing, navigation, and absence management.

Our Story

At Alight, we believe a company’s success starts with its people. Alight embraces values that come directly from our people – purposeful, human, united and growth-minded – reflecting our inclusive culture and promise that our clients expect. We are passionate about connecting purpose with impact. Alight empowers clients to build a healthier and more financially secure workforce by unifying the benefits ecosystem across health, wealth, wellbeing, navigation, and absence management.

Our Benefits

With a comprehensive total rewards package, Alight offers programs and plans that support your mind, body, wallet, and life. Benefits include health, dental and vision coverages starting Day One. Additionally, Alight colleagues enjoy wellbeing programs, retirement plans with contribution matching, generous time off, parental leave, continuing education, and career growth opportunities – all within a thriving global organization.

Flexible Working

So that you can be your best at work and home, we consider flexible working arrangements wherever possible. Alight has been a leader in the flexible workspace and “Top 100 Company for Remote Jobs” 6 years in a row.

Great Place to Work

Thanks to the work of every colleague, Alight has received multiple awards of recognition including “Great Place to Work” for the past 7 years and Fortune’s “Best Companies to Work For.”

The infrastructure connecting employers, benefits administrators, insurance carriers, and service providers is extraordinarily complex and consequential to how people access and experience care, yet largely invisible to the millions who depend on it. Alight is investing in making this complexity actionable through its new Benefits Intelligence offering, powered by the Alight Data Engine. By connecting data across the benefits ecosystem, identifying opportunities to improve outcomes, and enabling employers to take meaningful action, Benefits Intelligence has the potential to fundamentally change how organizations manage their benefits programs and improve the experiences of millions of people.

We’re seeking a Senior Full Stack Engineer to help bring this vision to life, taking product concepts from prototypes through architecture, implementation, and production within Alight’s broader Worklife experience. This role translates emerging product designs into secure, maintainable application services, APIs, data models, workflows, and user experiences. You’ll own significant architectural and implementation decisions while collaborating with engineering, product, and operations teams across Alight.

Key Responsibilities

• Designing and evolving application architecture, data models, workflows, and business logic.
• Building APIs and services connecting Worklife with the Alight Data Engine.
• Developing and integrate intuitive administrative and user-facing experiences.
• Establishing reusable engineering patterns for security, testing, observability, deployment, and reliability.
• Turning emerging product requirements into practical technical solutions and incremental delivery.
• Leading technical execution across Engineering, Product, UX, Data, and platform teams.
• Building production-ready services, APIs, workflows, automated tests, telemetry, and operational documentation.

Required Qualifications

• 6+ years of software engineering experience, including ownership of complex production applications.
• Strong experience with backend services, API design, application data modeling, and modern front-end development.
• Experience designing and building complex B2B applications or comparable workflow-driven products.
• Ability to turn ambiguity into clear technical decisions and working software.
• Experience integrating new capabilities into existing products and technology ecosystems.
• Ability to lead technical work across teams through collaboration and influence.
• Experience using AI-assisted or agentic development tools within disciplined software engineering practices.
• Experience integrating applications with data or AI-enabled services.
• Experience improving the reliability, observability, and operational efficiency of production applications.

Application and Interview

By applying for a position with Alight, you understand that, should you be made an offer, it will be contingent on your undergoing and successfully completing a background check consistent with Alight’s employment policies. Background checks may include some or all the following based on the nature of the position: SSN/SIN validation, education verification, employment verification, and criminal check, search against global sanctions and government watch lists, credit check, and/or drug test. You will be notified during the hiring process which checks are required by the position.

Alight requires all virtual interviews to be conducted on video. Please be aware that Alight is a camera-on culture and may require occasional travel to one of our physical office locations.

Our commitment to Inclusion

We celebrate differences and believe in fostering an environment where everyone feels valued, respected, and supported. We know that diverse teams are stronger, more innovative, and more successful.

At Alight, we welcome and embrace all individuals, regardless of their background, and are dedicated to creating a culture that enables every employee to thrive. Join us in building a brighter, more inclusive future.

As part of this commitment, Alight will ensure that persons with disabilities are provided reasonable accommodations for the hiring process. If reasonable accommodation is needed, please contact [e-mail] .

Equal Opportunity Policy Statement

Alight is an Equal Employment Opportunity employer and does not discriminate against anyone based on sex, race, color, religion, creed, national origin, ancestry, age, physical or mental disability, medical condition, pregnancy, marital or domestic partner status, citizenship, military or veteran status, sexual orientation, gender, gender identity or expression, genetic information, or any other legally protected characteristics or conduct covered by federal, state, or local law. In addition, we take affirmative action to employ disabled persons, disabled veterans, and other covered veterans.

Alight provides reasonable accommodations to the known limitations of otherwise qualified employees and applicants for employment with disabilities and sincerely held religious beliefs, practices and observances, unless doing so would result in undue hardship. Applicants for employment may request reasonable accommodations/modifications by contacting their recruiter.

Authorization to work in the Employing Country

Applicants for employment in the country in which they are applying (Employing Country) must have work authorization that does not, now or in the future, require sponsorship of a visa for employment authorization in the Employing Country and with Alight.

Note, this job description does not restrict management's right to assign or reassign duties and responsibilities of this job to other entities; including but not limited to subsidiaries, partners, or purchasers of Alight business units.

We offer you a competitive total rewards package, continuing education & training, and tremendous potential with a growing worldwide organization.

Salary Pay Range

Minimum :

170,000.00 USD

Maximum :

230,000.00 USD

Pay Transparency Statement: Alight considers a variety of factors in determining whether to extend an offer of employment and in setting the appropriate compensation level, including, but not limited to, a candidate’s experience, education, certification/credentials, market data, internal equity, and geography. Alight makes these decisions on an individualized, non-discriminatory basis. Bonus and/or incentive eligibility are determined by role and level. Alight also offers a comprehensive benefits package; for specific details on our benefits package, please visit: Wellbeing and Benefits Selector Page - Alight

Alight Solutions provides equal employment opportunities (EEO) to all employees and applicants for employment without regard to race, color, religion, creed, sex, sexual orientation, gender identity, national origin, age, disability, genetic information, pregnancy, childbirth or related medical condition, veteran, marital, parental, citizenship, or domestic partner status, or any other status protected by applicable national, federal, state or local law. Alight Solutions is committed to a diverse workforce and is an affirmative action employer.