Legacy Modernization Data Architecture Lead

Position Summary Position Summary Legacy Modernization Data Architect LeadSoftware Engineer III- AI & Engineering/Engineering as a ServiceJoin our AI & Engineering team transforming technology platforms, driving innovation, and helping make a significant impact on our clients' success. You’ll work alongside talented professionals reimagining and re-engineering operations and processes that are critical to business. Your contributions can help clients improve financial performance, accelerate new digital ventures, and fuel growth through innovation. AI & Engineering leverages cutting-edge engineering capabilities to build, deploy, and operate integrated/verticalized sector solutions in software, data, AI, network, and hybrid cloud infrastructure. These solutions are powered by engineering for business advantage, transforming mission-critical operations. We enable clients to stay ahead with the latest advancements by transforming engineering teams and modernizing technology & data platforms. Our delivery models are tailored to meet each client's unique requirements. Engineering as a Service provides complete design, implementation, and technology operations, leveraging our core engineering expertise. We transform engineering teams, modernize technology, and deliver complex programs with a product engineering approach. Our flexible delivery models—traditional teams, pools, or pods—are tailored to each client’s needs, offering engineering-led advisory, implementation, and operational capabilities to accelerate innovation.Work You’ll DoYou are a hands-on technical leader who designs, builds and ships scalable software systems while mentoring junior engineers and driving technical best practices across the organization. You will architect full-stack and agentic AI solutions, guide distributed engineering teams, and engage with product managers, designers, and stakeholders to deliver high-impact solutions.You will be an experienced Data Engineer who is comfortable on both sides – reads mainframe file layouts, DB2 schemas and builds Python/SQL loads and reconciliations on the modern side.A successful candidate would possess these skills:Ability to work independently and collaborate as part of a teamEffective written and verbal communication skillsMeticulous attention to detail and quality of work productAbility to build and sustain professional relationshipsAbility to lead projects or workstreamsAbility to manage and prioritize multiple tasks in a fast-paced and dynamic environmentStrong interpersonal skills and professional demeanorAbility to meet deadlinesAbility to provide clear guidance to othersKey ResponsibilitiesArchitect, design, and implement scalable, reliable, and maintainable full-stack software systems and services.Design and operationalize RESTful and asynchronous APIs on cloud-native infrastructure (AWS, Azure, or GCP), including containerized workloads, CI/CD pipelines, and infrastructure-as-code.Lead end-to-end delivery of complex features from requirements gathering through deployment and monitoring.Architect and deliver production-grade agentic AI and multi-agent applications using popular frameworks such as LangChain, LangGraph, AutoGen, CrewAI, or Semantic Kernel; design patterns including orchestrator-agent hierarchies, RAG pipelines, tool-calling agents, and context/memory management.Conduct thorough code reviews, enforce coding standards, and champion engineering best practices.Mentor and guide junior and mid-level engineers, fostering a culture of continuous learning and improvement.Collaborate with cross-functional teams including Product, Design, DevOps, and QA to deliver high-quality software.Identify technical debt and proactively drive refactoring and improvement initiatives.Participate in system design discussions, architecture reviews, and technical planning sessions.Troubleshoot and resolve complex performance, scalability, and reliability issues in production systems.Qualifications7+ years of Data Migration experience working specifically on commercial legacy modernization projects.7+ years’ experience with COBOL Copybooks and File Layouts.7+ years’ hands-on expert level with IBM DB2/VSAM.SQL – expert level skills5+ years’ hands on Python Data Engineering5+ years’ hands-on experience with ETL tools.AWS certificationsStrong experience in Java and Spring-based application development.Experience with microservices, APIs, messaging, and event-driven architectures.Working knowledge of AWS and/or GCP cloud services.Experience with Docker, Kubernetes, Terraform, and CI/CD tooling.Experience with SQL and NoSQL data stores.Strong communication, collaboration, and problem-solving skills. Demonstrated ability to work independently in a player-coach or technical lead capacity.Proven track record managing or technically leading delivery teams, including communication cadences and quality assurance across time zones.Experience delivering software across multiple SDLC methodologies (Agile, SAFe, Kanban, waterfall-agile hybrid).Bachelor’s degree in Computer Science, Engineering, or a related discipline — or equivalent professional experience.Ability to travel up to 50% based on the work you do and the clients and industries/sectors you serve.Limited immigration sponsorship may be availableIn addition, successful Software Engineer IIIs will have the following preferred background:Experience with event-driven architectures and messaging systems (Kafka, RabbitMQ, SQS)Financial services industry vertical experience -banking, insurance.Contributions to open-source projects or a demonstrated personal portfolio.Experience with observability, security, and quality code tools.Experience with machine learning pipelines or data engineering workflows.Demonstrated experience designing and delivering solutions that incorporate Large Language Models (LLMs) and/or agentic AI architectures in a professional setting.Knowledge of security best practices, including OWASP guidelines and secure coding standards.Prior experience in a tech lead or staff engineer capacity.Industry-recognized technology certifications.Wages + SalaryThe wage range for this role takes into account the wide range of factors that are considered in making compensation decisions including but not limited to skill sets; experience and training; licensure and certifications; and other business and organizational needs. The disclosed range estimate has not been adjusted for the applicable geographic differential associated with the location at which the position may be filled. At Deloitte, it is not typical for an individual to be hired at or near the top of the range for their role and compensation decisions are dependent on the facts and circumstances of each case. A reasonable estimate of the current range is $122,000 to $240,500You may also be eligible to participate in a discretionary annual incentive program, subject to the rules governing the program, whereby an award, if any, depends on various factors, including, without limitation, individual and organizational performance. 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 View email address on click.appcast.io. Recruiting tips From developing a stand out resume to putting your best foot forward in the interview, we want you to feel prepared and confident as you explore opportunities at Deloitte. Check out recruiting tips from Deloitte recruiters. 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 Consulting LLP, a subsidiary of Deloitte LLP. Please see for a detailed description of the legal structure of Deloitte LLP and its subsidiaries. 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. Qualified applicants with criminal histories, including arrest or conviction records, will be considered for employment in accordance with the requirements of applicable state and local laws, including the Los Angeles County Fair Chance Ordinance for Employers, City of Los Angeles’s Fair Chance Initiative for Hiring Ordinance, San Francisco Fair Chance Ordinance, and the California Fair Chance Act. See notices of various fair chance hiring and ban-the-box laws where available. Fair Chance Hiring and Ban-the-Box Notices | Deloitte US Careers Requisition code: 375021 Job ID 375021 Engineering and Product | Software EngineeringSame job available in 37 locations