AI Modeler

Tata Consultancy Services; Malvern (Chester County); On-site; USD 130,000 - 160,000; Full time

Benefits offered by this job

Discretionary Annual Incentive

Medical Coverage

Professional Growth & Training

Job summary

Tata Consultancy Services in the United States seeks a senior AI/ML software engineer to drive Bedrock-based pipelines on high-volume financial document workloads. You will design prompts, build agentic workflows, and replace legacy rules with scalable Bedrock components.

The role requires 10+ years in software engineering with Python, deep AWS expertise, and a track record deploying Foundation Models in production. Expect hands-on coding, mentoring, and cross-team collaboration.

Qualifications

• 10+ years of software engineering experience with Python as your primary language.
• Hands-on experience with Amazon Bedrock — model invocation, Agents, Knowledge Bases, and Guardrails.
• Experience with prompt engineering — designing, versioning, and evaluating prompts in a production context, not just experimentation.
• Familiarity with LLM evaluation patterns: ground truth datasets, accuracy measurement, regression testing for model outputs.
• Strong AWS fundamentals: Lambda, S3, SQS, SNS, EventBridge, CloudWatch, IAM, Secrets Manager.
• Experience with agentic patterns and tool use — building systems where the model calls external APIs as part of a reasoning chain.
• Comfortable working with structured and unstructured document formats (PDF, Excel, DOCX) and document intelligence pipelines (AWS Textract or equivalent).
• AWS ML certification is a plus; a demonstrated track record working with Bedrock and Foundation Models in production carries equal weight.
• Understanding of how to build observable AI systems — logging model inputs/outputs, tracking token costs, detecting accuracy drift in production.

Responsibilities

• Design, build, and optimize Bedrock-powered pipelines replacing custom-trained NLP and rule-based models across multiple production Lambda functions.
• Develop and iterate on prompts, agentic workflows, and tool-use patterns that extract transaction attributes from complex financial documents — PDFs, Excel, Word, and images.
• Implement Bedrock Knowledge Bases to replace hard-coded business rules and fragile per-invocation API calls with managed, queryable reference data.
• Build and maintain an evaluation harness to measure FM extraction accuracy against histori cal ground truth, enforcing accuracy gates before any production promotion.
• Integrate Bedrock Agents with internal APIs using tool-use patterns, replacing legacy direct database queries.
• Participate in parallel-run infrastructure — running old and new systems side by side in TEST, logging divergence, and driving statistical validation before cutover.
• Contribute to team knowledge transfer; this role works closely with the Senior AI Engineer who leads FM and Bedrock capability building across the teams.

Skills

Python

Prompt engineering

LLM evaluation patterns

Observability & logging

Mentoring & leadership

Migration planning

Education

Bachelor of Computer Science

Tools

Amazon Bedrock

AWS Lambda

S3

SQS

SNS

EventBridge

CloudWatch

IAM

Secrets Manager

Bedrock Foundation Models

Textract or equivalent

Job description

Job Description

• 10+ years of software engineering experience with Python as your primary language
• Hands-on experience with Amazon Bedrock — model invocation, Agents, Knowledge Bases, and Guardrails
• Experience with prompt engineering — designing, versioning, and evaluating prompts in a production context, not just experimentation
• Familiarity with LLM evaluation patterns: ground truth datasets, accuracy measurement, regression testing for model outputs
• Strong AWS fundamentals: Lambda, S3, SQS, SNS, EventBridge, CloudWatch, IAM, Secrets Manager
• Experience with agentic patterns and tool use — building systems where the model calls external APIs as part of a reasoning chain
• Comfortable working with structured and unstructured document formats (PDF, Excel, DOCX) and document intelligence pipelines (AWS Textract or equivalent)
• AWS ML certification is a plus; a demonstrated track record working with Bedrock and Foundation Models in production carries equal weight.
• Understanding of how to build observable AI systems — logging model inputs/outputs, tracking token costs, detecting accuracy drift in production

Must Have Technical/Functional Skills

• 10+ years of software engineering experience with Python as your primary language
• Hands-on experience with Amazon Bedrock — model invocation, Agents, Knowledge Bases, and Guardrails
• Experience with prompt engineering — designing, versioning, and evaluating prompts in a production context, not just experimentation
• Familiarity with LLM evaluation patterns: ground truth datasets, accuracy measurement, regression testing for model outputs
• Strong AWS fundamentals: Lambda, S3, SQS, SNS, EventBridge, CloudWatch, IAM, Secrets Manager
• Experience with agentic patterns and tool use — building systems where the model calls external APIs as part of a reasoning chain
• Comfortable working with structured and unstructured document formats (PDF, Excel, DOCX) and document intelligence pipelines (AWS Textract or equivalent)
• AWS ML certification is a plus; a demonstrated track record working with Bedrock and Foundation Models in production carries equal weight.
• Understanding of how to build observable AI systems — logging model inputs/outputs, tracking token costs, detecting accuracy drift in production

Nice to Have

• Experience with traditional ML frameworks (PyTorch, scikit-learn) — helpful for understanding what is being replaced
• Background in high-stakes operational domains — financial services, insurance, healthcare, or any environment where data accuracy and auditability are non-negotiable
• Experience with PostgreSQL, and event-driven Lambda architectures
• Prior work on parallel-run or shadow-mode validation patterns for AI system migrations

Roles & Responsibilities

We are modernizing core automation platforms that sit at the heart of our financial operations processing — systems that handle high-volume document intelligence, transaction risk assessment, and intelligent workflow routing. You will be a key technical contributor on a high-visibility initiative, working alongside a Senior AI Engineer to migrate these platforms from traditional machine learning to Amazon Bedrock Foundation Models. The work directly impacts operational efficiency, compliance confidence, and the speed at which our teams can process and settle client transactions. This is a production-grade AI engineering role at the intersection of financial services and cutting-edge cloud AI — with real business outcomes tied to what you build.

This is a 100% hands-on individual contributor role. You will be writing code, building pipelines, and shipping to production. As one of the most experienced engineers on the team in this space, you will also be expected to mentor junior and mid-level engineers, sharing knowledge through pairing, code review, and hands-on guidance.

What You Will Do

• Design, build, and optimize Bedrock-powered pipelines replacing custom-trained NLP and rule-based models across multiple production Lambda functions
• Develop and iterate on prompts, agentic workflows, and tool-use patterns that extract transaction attributes from complex financial documents — PDFs, Excel, Word, and images
• Implement Bedrock Knowledge Bases to replace hard-coded business rules and fragile per-invocation API calls with managed, queryable reference data
• Build and maintain an evaluation harness to measure FM extraction accuracy against histori cal ground truth, enforcing accuracy gates before any production promotion
• Integrate Bedrock Agents with internal APIs using tool-use patterns, replacing legacy direct database queries
• Participate in parallel-run infrastructure — running old and new systems side by side in TEST, logging divergence, and driving statistical validation before cutover
• Contribute to team knowledge transfer; this role works closely with the Senior AI Engineer who leads FM and Bedrock capability building across the teams

Generic Managerial Skills, If any

• Planning & Execution – Effectively prioritize tasks, estimate effort, and ensure timely delivery of project milestones while balancing multiple commitments.
• Stakeholder Management – Build strong relationships with business teams, clients, and leadership through proactive communication and expectation management.
• Communication – Convey technical and non-technical information clearly through meetings, presentations, documentation, and status updates.
• Collaboration – Foster teamwork across cross-functional groups, encourage knowledge sharing, and contribute to a positive team environment.
• Decision Making – Analyze options, assess risks, and make informed decisions that align with both technical and business objectives.
• Leadership & Ownership – Take accountability for deliverables, drive initiatives proactively, and lead by example to achieve team goals.
• Risk & Issue Management – Identify potential risks early, address blockers proactively, and implement mitigation strategies to ensure smooth project execution.
• Customer & Business Focus – Understand customer needs and business priorities, ensuring technical solutions deliver measurable value.
• Mentoring & Coaching – Support team growth through guidance, code reviews, knowledge sharing, and skill development initiatives.
• Project & Change Management – Adapt effectively to evolving requirements, manage priorities during change, and ensure successful delivery outcomes.

TCS Employee Benefits Summary

• Discretionary Annual Incentive.
• Comprehensive Medical Coverage: Medical & Health, Dental & Vision, Disability Planning & Insurance, Pet Insurance Plans.
• Family Support: Maternal & Parental Leaves.
• Insurance Options: Auto & Home Insurance, Identity Theft Protection.
• Convenience & Professional Growth: Commuter Benefits & Certification & Training Reimbursement.
• Time Off: Vacation, Time Off, Sick Leave & Holidays.
• Legal & Financial Assistance: Legal Assistance, 401K Plan, Performance Bonus, College Fund, Student Loan Refinancing.
• Salary Range: $130,000 - 160,000 a year

Qualifications

BACHELOR OF COMPUTER SCIENCE