Sr. Developer III (Hybrid)

Globe Life Inc.; United States; Hybrid; USD 110,000 - 165,000; Full time

Benefits offered by this job

Competitive compensation

Health, dental, vision insurance

Company-matched 401k

Paid holidays

Parental leave

Education reimbursement

Counseling services

Job summary

Globe Life Inc. is seeking a Sr. Developer III to join our team in a hybrid role based in McKinney, TX.

You will design, build, and ship full-stack web applications, owning features from frontend UI to API and data layers, while driving performance, security, and reliability. You will mentor junior engineers, lead frontend architecture decisions, and collaborate with product, QA, and other stakeholders in an Agile environment.

Qualifications

• Bachelor's degree in CS, software engineering, or related field.
• 10+ years of software development experience with strong frontend focus.
• Expert-level frontend with Vue 3 and TypeScript; strong backend with .NET Core.

Responsibilities

• Design, build, and ship full-stack web applications from requirements to production release.
• 2) Own features end-to-end including frontend, API, and data layer.
• 3) Drive performance, security, and scalability improvements across applications.
• 4) Lead code reviews, mentor developers, and guide frontend architecture decisions.
• 5) Collaborate across cross-functional teams in an Agile environment.

Skills

Front-end architecture

Full-stack development

Technical leadership

Mentoring juniors

Agile/Scrum

Performance optimization

Education

Bachelor's degree in Computer Science or related

Tools

Vue 3

ASP.NET Core

TypeScript

SQL Server

EF Core

Dapper

Docker

Git

Playwright/Cypress

Azure DevOps

Job description

At Globe Life, we are committed to empowering our employees with the support and opportunities they need to succeed at every stage of their career. We take pride in fostering a caring and innovative culture that enables us to collectively grow and overcome challenges in a connected, collaborative, and mutually respectful environment that calls us to help Make Tomorrow Better.

Role Overview:

Could you be our next Sr. Developer III ? Globe Life is looking for a Sr. Developer III to join the team!

In this role, you will be responsible for providing technical support and guidance across system applications while driving enhancements and designing scalable solutions throughout the full application lifecycle. You will serve as a technical expert making architectural decisions, ensuring quality, and bridging technical execution with business needs for both new and existing applications. You will also manage client relationships with a high sense of urgency, providing technical guidance and hands‑on support across end-user, application, and cloud environments.

This is a hybrid position located in McKinney, TX. (WFH Monday & Friday, In Office Tuesday–Thursday).

What You Will Do:

Application Development

• Design, build, and ship full-stack web applications from requirements through production release, owning quality, performance, and reliability throughout.
• Build complex, data-driven, multi-user web applications that handle real-world load, concurrency, and security requirements.
• Ensure web applications are maintainable, well-tested, well-documented, and built to last.
• Take full ownership of features end-to-end: front-end UI, back-end API, data layer, and deployment.
• Proactively identify and resolve performance bottlenecks, security vulnerabilities, and scalability issues.
• Participate in production support, diagnosing, triaging, and resolving application issues in live environments.

Front-End

• Own the front-end architecture, making deliberate, well-reasoned decisions about component structure, state management, routing strategy, data fetching patterns, and build configuration.
• Build production-quality Vue 3 applications using the Composition API, script setup syntax, composables, provide/inject, teleport, and advanced slot patterns.
• Design and enforce a scalable, maintainable component library with reusable, well-documented, and prop‑typed components that the team can build on confidently.
• Write TypeScript across the entire front-end codebase, including strict mode, well-defined interfaces, generic types, utility types, and proper type narrowing.
• Architect state management with a clear separation of state, getters, and actions, applying the right approach for each situation.
• Configure and optimise Vite build pipelines, including code splitting, tree shaking, lazy‑loaded routes, dynamic imports, chunk strategy, and bundle size analysis.
• Build responsive, mobile‑first UIs using modern CSS, including Flexbox, Grid, SCSS/SASS, CSS custom properties, and BEM or equivalent methodology.
• Implement and enforce WCAG 2.1 AA accessibility standards, including semantic HTML, ARIA roles and attributes, keyboard navigation, focus management, and screen reader compatibility.
• Own front‑end performance, optimising Core Web Vitals (LCP, CLS, FID/INP), implementing lazy loading, virtual scrolling, debounce/throttle strategies, and memoisation.
• Handle complex client‑side concerns including authentication flows (JWT, OAuth2, token refresh), route guards, role‑based UI rendering, and secure token storage patterns.
• Design robust API integration layers with interceptors, centralised error handling, retry logic, loading/error/empty states, and optimistic UI updates.
• Write comprehensive front‑end tests, including unit/component tests and end‑to‑end tests with Playwright or Cypress.
• Collaborate closely with UX/UI designers to translate wireframes and mockups into pixel‑perfect, accessible, performant implementations.
• Ensure cross‑browser and cross‑device compatibility across Chrome, Firefox, Safari, Edge, and major mobile browsers.
• Stay current with front‑end tooling and web standards and bring forward‑thinking recommendations to the team.

Back-End

• Design and deliver full‑stack features end‑to‑end, from front‑end through .NET Core Web API.
• Architect and implement RESTful APIs using ASP.NET Core Web API, including versioning, error handling, input validation, middleware pipelines, and security best practices.
• Build and maintain back‑end services using C# and .NET Core with clean architecture principles.
• Implement authentication and authorisation using JWT bearer tokens, OAuth2/OpenID Connect, and ASP.NET Core Identity.
• Develop data access layers using Entity Framework Core and Dapper for performance‑critical queries.
• Design and optimise Microsoft SQL Server schemas, stored procedures, indexes, and T‑SQL queries.
• Implement background processing and messaging using Hangfire, AWS SQS, or Azure Service Bus.
• Write clean, testable code and implement unit and integration tests as part of the development workflow.

DevOps & CI/CD

• Own and continuously improve multi‑stage CI/CD pipelines in Azure DevOps, including build, automated testing, code quality gates, approval gates, and environment‑specific releases.
• Enforce Git best practices including branching strategy (GitFlow or trunk‑based), pull request standards, code review quality, and release tagging.
• Automate front‑end and back‑end testing and deployment processes within the pipeline.
• Maintain Azure DevOps Boards and contribute to sprint planning and backlog refinement.

Leadership & Collaboration

• Serve as the front‑end authority on the team, setting standards and guiding others through complex front‑end challenges.
• Lead code reviews with substantive, constructive feedback that elevates code quality and team capability.
• Mentor junior and mid‑level developers, especially on front‑end architecture, Vue 3 patterns, TypeScript, and performance.
• Drive architecture and design discussions, creating technical specifications, component diagrams, and ADRs.
• Partner with QA, DBAs, Business Analysts, and Product Owners throughout the full SDLC.
• Proactively identify technical debt, propose remediation plans, and lead modernisation efforts.
• Participate in all Agile ceremonies: sprint planning, stand‑ups, retrospectives, and backlog grooming.

What You Can Bring:

Education

• Bachelor's degree in Computer Science, Software Engineering, or a related field, or equivalent demonstrable professional experience.

Experience

• 10+ years of overall software development experience, including 7+ years of expert-level front‑end development (Vue 3 or Angular), 5+ years of full‑stack .NET Core development, 4+ years of production TypeScript and Git, and 3+ years each of hands‑on AWS, Azure DevOps CI/CD, and Microsoft SQL Server experience.
• Demonstrated history of building and delivering complex, production web applications, enterprise or consumer‑facing with real users, real data, and real uptime requirements.
• Expert‑level front‑end framework experience including: Vue 3 (preferred), Composition API, TypeScript, Pinia, Vue Router, Vite, and large‑scale application architecture.
• Angular considered as a strong alternative, with expert‑level experience in TypeScript, RxJS, NgRx or similar state management, Angular CLI, and a genuine enthusiasm to transition to Vue 3.
• Demonstrated experience leading or significantly contributing to front‑end architecture decisions on a production application.
• Proven experience in Agile/Scrum environments with iterative delivery and continuous improvement.
• Proven ability to work independently through ambiguity, managing several diverse and complex problems simultaneously, and consistently delivering quality results that meet requirements and timelines.
• Proven ability to think beyond individual components, with experience contributing to system design, platform strategy, and broad technical direction.
• Demonstrated ability to resolve and de‑escalate issues effectively and independently.
• Proven understanding of how end users interact with their applications, using that perspective to drive better outcomes.

Technical Skills

• Mastery‑level front‑end engineering expertise, with a track record of owning deliverables, raising team capability, and delivering reliable production outcomes.
• Deep experience with advanced Vue 3 patterns including composables, provide/inject, teleport, and advanced slot patterns.
• Hands‑on experience with Pinia / NgRx state management, Vue Router 4, and Angular Router.
• Advanced TypeScript skills including discriminated unions and complex type narrowing patterns.
• Solid foundation in JavaScript ES6+, HTML5 (semantic/ARIA), and CSS3 (Flexbox, Grid, SCSS/BEM).
• Proven ability to optimise web performance including Core Web Vitals, lazy loading, and bundle optimisation.
• Experience implementing auth patterns and security practices including JWT, OAuth2/OIDC (PKCE), route guards, role‑based UI, secure token storage, XSS, CSRF, and CSP.
• Experience with testing frameworks including Vitest/Jest, Vue Test Utils, Angular Testing Library, Playwright/Cypress, xUnit, Moq/NSubstitute, and FluentAssertions.
• Demonstrated ability to implement and enforce accessibility standards including WCAG 2.1 AA, keyboard navigation, and screen reader testing.
• Proficiency with Clean Architecture principles including CQRS/MediatR, Repository pattern, and SOLID.
• Hands‑on experience with EF Core, Dapper, FluentValidation, Redis caching, and EF Core code‑first migrations.
• Working knowledge of ASP.NET Core Identity and C# features including async/await, LINQ, records, and pattern matching.
• Proficiency with Docker and SonarQube/SonarCloud.
• Proactive approach to problem solving with the ability to quickly analyse situations, identify solutions, deliver clear informed recommendations, and understand the impact on time, cost, and quality.

Preferred

• Familiarity with Redis, PostgreSQL, SQS/SNS, ECS/Fargate, GitHub Actions, or Terraform is a plus.
• Relevant certifications, including AWS (e.g., AWS Certified Developer, Associate or Solutions Architect), are a plus.

Applicable To All Employees of Globe Life Family of Companies:

• Reliable and predictable attendance of your assigned shift.
• Ability to work full time and/or part time based on the position specifications.

How Globe Life Will Support You:

Looking to continue your career in an environment that values your contribution and invests in your growth? We've curated a benefits package that helps to ensure that you don’t just work, but thrive at Globe Life:

• Competitive compensation designed to reflect your expertise and contribution.
• Comprehensive health, dental, and vision insurance plans because your well‑being is fundamental to your performance.
• Robust life insurance benefits and retirement plans, including company‑matched 401k and pension plan.
• Paid holidays and time off to support a healthy work‑life balance.
• Parental leave to help our employees welcome their new additions.
• Subsidised all‑in‑one subscriptions to support your fitness, mindfulness, nutrition, and sleep goals.
• Company‑paid counseling for assistance with mental health, stress management, and work‑life balance.
• Continued education reimbursement eligibility and company‑paid FLMI and ICA courses to grow your career.
• Discounted Texas Rangers tickets for a proud visit to Globe Life Field.

Opportunity awaits! Invest in your professional legacy, realise your path, and see the direct impact you can make in a workplace that celebrates and harnesses your unique talents and perspectives to their fullest potential. At Globe Life, your voice matters.