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Full Stack Engineer, Consultant II - Tax Transformation

Deloitte

Deloitte

Software Engineering
St. Louis, MO, USA
Posted on Jan 28, 2026

Position Summary

If you are a technology visionary with a passion for transforming global tax business with digital technology, consider working with the US Tax Transformation technology team. This is an exciting opportunity to support global execution of Deloitte’s tax strategy as we shift from “doing digital” to “being digital” by reimagining how we engage with our clients, deliver our services, operate our business, and create value.

What You’ll Do

As a Deloitte Tax LABS Team, Full Stack Engineer, Consultant II you’ll design, develop, and deploy cutting-edge web applications and features that solve key business challenges. You’ll work hands-on across the entire technology stack, collaborating closely with other engineers, data scientists, and business stakeholders to deliver robust, scalable solutions and integrate AI components into modern web applications.

Responsibilities:

  • Participate in requirements analysis.
  • Collaborate with US colleagues and Vendors’ teams to produce software design and architecture.
  • Write clean, scalable code using .NET programming languages.
  • Test and deploy applications and systems.
  • Revise, update, refactor and debug code.
  • Develop, support, and maintain applications and technology solutions.
  • Ensure that all development efforts meet or exceed client expectations. Applications should meet requirements of scope, functionality, and time and adhere to all defined and agreed upon standards.
  • Become familiar with all development tools, testing tools, methodologies, and processes.
  • Become familiar with the project management methodology and processes.
  • Encourage collaborative efforts and camaraderie with on-shore and off-shore team members.
  • Demonstrate a strong working understanding of the industry best standards in software development and version controlling.
  • Ensure the quality and low bug rates of code released into production.
  • Work on agile projects, participate in daily SCRUM calls and provide task updates.

The Team

Deloitte Tax LLP's Tax Transformation Office (TTO) is responsible for the design, development, and deployment of innovative, enterprise technology, tools, and standard processes to support the delivery of tax services. The TTO team focuses on enhancing Deloitte Tax LLP’s ability to deliver comprehensive, value-added, and efficient tax services to our clients. It is a dynamic team with professionals of varying backgrounds from tax technical, technology development, change management, Six Sigma, and project management. The team consults and executes on a wide range of initiatives involving process and tool development and implementation including training development, engagement management, tool design, and implementation.

Qualifications

Required:

  • Ability to perform job responsibilities within a hybrid work model that requires US Tax professionals to co-locate in person 2 – 3 days per week.
  • Bachelor’s degree in computer science or a relevant discipline.
  • 1+ years experience in full stack web development and strong hands-on experience on C#, SQL Server, OOPS Concepts, Micro Services Architecture.
  • Demonstrated proficiency in modern front-end frameworks (e.g., Angular, React).
  • Proven hands-on experience on .NET Core, ASP.NET Core Web API, SQL, NoSQL, Entity Framework 6 or above, Azure, Database performance tuning, Applying Design Patterns, Agile.
  • Ability to travel up to 10%, on average, based on the work you do and the clients and industries/sectors you serve.
  • Limited immigration sponsorship may be available.
  • One of the following active accreditations obtained, in process, or willing and able to obtain:
    • Licensed CPA in state of practice/primary office if eligible to sit for the CPA
    • If not CPA eligible:
      • Licensed Attorney
      • Enrolled Agent
      • Technology Certifications:
        • AWS Certified Solutions Architect
        • Certified SAFe® Advanced Scrum Master
        • Certified SAFe® Agile Software Engineer
        • Certified SAFe® Agilist
        • Certified SAFe® Architect
        • Certified SAFe® DevOps Practitioner
        • Certified SAFe® Practitioner
        • Certified SAFe® Scrum Master
        • Certified Scrum Developer (CSD)
        • MCSD: Application Lifecycle Management Solutions Developer
        • MCSD: Web Applications
        • Microsoft Azure
        • Microsoft Certified Solutions Developer (MCSD)
        • Microsoft Certified Solutions Expert (MCSE)
        • Microsoft MCSD Certification
        • Professional Scrum Developer™ (PSD)
        • Professional Scrum Product Owner™(PSCPO) – SCRUM.org

Preferred:

  • Practical experience integrating and utilizing AI/ML features in web applications, including prompt engineering and working with Gen AI models.
  • Familiarity with designing and integrating databases (SQL, NoSQL) and working with vector databases, RAG, and hybrid search approaches.
  • Prior experience developing agentic AI applications or GenAI-powered modules.
  • Experience with Azure (cloud hosting, DevOps/build/release pipelines), MongoDB, and Entity Framework.
  • Excellent troubleshooting and communication skills.
  • Strong verbal and written communication skills; strong listening, interpersonal, and facilitation skills.
  • Knowledge on Angular, Mongo DB, NPM and Azure Devops Build/Release configuration.
  • Self-starter with solid analytical and problem-solving skills.

Information for applicants with a need for accommodation: https://www2.deloitte.com/us/en/pages/careers/articles/join-deloitte-assistance-for-disabled-applicants.html

Deloitte is committed to providing reasonable accommodations for people with disabilities. If you require a reasonable accommodation to participate in the recruiting process, please direct your inquiries to the Global Call Center (GCC) at USTalentCICInbox@deloitte.com.
Recruiting tips

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Benefits

At Deloitte, we know that great people make a great organization. We value our people and offer employees a broad range of benefits. Learn more about what working at Deloitte can mean for you.
Our people and culture

Our inclusive culture empowers our people to be who they are, contribute their unique perspectives, and make a difference individually and collectively. It enables us to leverage different ways of thinking, ideas, and perspectives, and bring more creativity and innovation to help solve our clients' most complex challenges. This makes Deloitte one of the most rewarding places to work.
Our purpose
Deloitte’s purpose is to make an impact that matters for our people, clients, and communities. At Deloitte, purpose is synonymous with how we work every day. It defines who we are. Our purpose comes through in our work with clients that enables impact and value in their organizations, as well as through our own investments, commitments, and actions across areas that help drive positive outcomes for our communities. Learn more.
Professional development

From entry-level employees to senior leaders, we believe there’s always room to learn. We offer opportunities to build new skills, take on leadership opportunities and connect and grow through mentorship. From on-the-job learning experiences to formal development programs, our professionals have a variety of opportunities to continue to grow throughout their career.
As used in this posting, "Deloitte" means Deloitte Tax LLP, a subsidiary of Deloitte LLP. Please see https://www.deloitte.com/us/about for a detailed description of the legal structure of Deloitte LLP and its subsidiaries. Certain services may not be available to attest clients under the rules and regulations of public accounting.
All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, age, disability or protected veteran status, or any other legally protected basis, in accordance with applicable law.
Requisition code: 322354
Job ID 322354