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Vaibhav Daga

Builder | Ex-Goldman Sachs, Google, slice | IITR | CFA L2

Bengaluru

9+ years of work experience

Testsigma
Sep 20251 yr 1 moPresent

◦ Build a multi-stage LLM agentic pipeline that generates test cases from product requirements, with built-in LLM evaluation (evals), guardrails, and context engineering, cutting test authoring time by 75%. ◦ Directed a knowledge-graph prototype that grounds test generation in each customer’s application structure for hallucination mitigation. ◦ Designed an auto-healing algorithm to repair broken test-automation locators across heterogeneous customer applications. ◦ Mentored engineers implementing backup locators and multimodal LLM-based visual analysis with confidence scoring. ◦ Reduced false test failures by 82% across all customers while keeping false positives under 5%. ◦ Provided technical leadership to 10+ engineers across multiple cross-functional teams, shipping 5+ projects through influence without authority.
Stealth Startup
Apr 20241 yr 7 mosOct 2025

Bengaluru

• Built and launched a multi-agent generative AI platform (autonomous LLM agents) for investment research and analysis. • Designed an agent-orchestration framework from scratch (zero-to-one), decomposing complex analysis workflows into specialized sub-agents with task-specific tools (tool use / function calling). • Developed a personalization layer that adapts agent output (structured outputs) to each client’s investment mandate and reporting format. • Implemented a Retrieval-Augmented Generation (RAG) system — document parsing, chunking, embeddings, and vector search — for fast, accurate retrieval over earnings call transcripts. • Led customer-facing design-partner collaboration to automate earnings transcript analysis, cutting analyst effort by 33%.
slice
May 20222 yrsApr 2024

Bengaluru

- Card Management System (CMS), PPI card ◦ Architectured CMS through primary research and vendor evaluation with RuPay, VISA, vendors, and competitors. ◦ Synthesized the research into a buildable high-level architecture and technical specification that became the blueprint for the entire CMS program. ◦ Scoped all components: multi-tenant management, digital and physical card issuance, card controls and transaction limits, online and offline transaction authorization. ◦ Specified entities, domain models, state machines, data flows, card lifecycle management, and algorithms for every user journey, turning an ambiguous domain into an executable design. ◦ Deployed HSMs for all cryptographic operations (encryption, key management) across DC/DR data centers with disaster recovery, meeting PCI-DSS and RBI regulatory compliance requirements. ◦ Designed a modular monolith with clean service boundaries (domain-driven design), enabling incremental decomposition into microservices for scalability. ◦ Future-proofed the design for extensibility to credit and debit cards and additional card networks (NPCI/RuPay, Visa), avoiding re-architecture for new products. ◦ Projected cost savings of INR 30M annually at launch volume, scaling to INR 100M+ as card volume grows. - Payouts ◦ Built the loan disbursement (lending payouts) platform with bank integrations, defining bank account discovery, penny-drop validation, and transaction behavior. ◦ Designed client-level idempotency and pending-transaction balance locking (concurrency control, transactional integrity), eliminating negative-balance and double-disbursement scenarios. ◦ Implemented event-driven transaction state management using webhooks and asynchronous processing, with end-of-day monetary reconciliation against the ledger.
Google
Oct 20201 yr 7 mosApr 2022

Bengaluru

◦ Built GCP’s revenue recognition system, achieving 100% compliance automation. ◦ Reduced manual intervention by 70% by partnering cross-functionally with product managers and finance leads to translate business requirements into technical solutions. ◦ Delivered 20+ REST APIs with end-to-end architecture, including entities, data modeling, low-level design, API contracts, and business logic. ◦ Designed and built a changelog-capture (audit trail) system, engineered for auditability, extensibility to future business needs, and scale.
Goldman Sachs
Jun 20182 yrs 4 mosSep 2020

Bengaluru

- Quant ◦ Built statistical and time-series quantitative models computing the Financial Conditions Index (FCI) for 50 countries. ◦ Validated the models via backtesting against 20+ years of history, demonstrating correlation with real economic indicators. ◦ Engineered a real-time data pipeline (MongoDB) delivering FCI data directly to research analysts. ◦ Shipped production REST APIs powering the public FCI dashboard on goldmansachs.com and external client data feeds. - Alternative data modelling ◦ Estimated country-level import/export trends by tracking export-vessel locations (alternative data, predictive modeling). ◦ Modeled the impact of corporate events on stock prices (financial modeling). ◦ Developed Natural Language Processing (NLP) text analytics for trend analysis over historical earnings transcripts, adopted by analysts across the division. ◦ Trained 100+ fundamental analysts to build their own Python data-analysis workflows, seeding automation across the research division.
Goldman Sachs
Jun 20171 yrMay 2018

Bengaluru

• Built data analytics tooling over daily risk-pricing data for the firmwide portfolio. • Reduced the compute cost and runtime of risk-pricing calculations (performance and cost optimization).

Vaibhav’s AI Stack

claude code
claude code
claude
claude
codex
codex
cursor
cursor
hermes agent
hermes agent

Education

Indian Institute of Technology, Roorkee

Bachelor's Degree, Computer Science

Indian Institute of Technology, Roorkee

20134 yrs2017
Step By Step High School, Jaipur

High School

Step By Step High School, Jaipur

20112 yrs2013

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Headline

Builder | Ex-Goldman Sachs, Google, slice | IITR | CFA L2

About

I build systems where being wrong is expensive — money moving between banks, revenue books auditors sign off on, LLM output that has to be right, not just plausible. I get pulled into ambiguous domains. Card management systems had no public playbook, I reconstructed one through primary research — it became the backbone of slice's card program. At Google, I built GCP's revenue-recognition platform — turning accounting policy into APIs, data models, and a fully automated system. The recent chapters are LLM-native: building agent workflows that decompose real analyst and QA work into systems with measurable, guarded output. The breadth is deliberate: markets at Goldman Sachs, cloud platforms at Google, payments at slice, AI at Peekstreet — which I co-founded — and Testsigma. Founding a company taught me to own outcomes end to end, and I've kept the habit. I love owning hard problems.

Location

Bengaluru

AI stack

claude code

claude

codex

cursor

hermes agent

Work experience

AI Lead at Testsigma, Sep 2025 - Present · 1 yr 1 mo, ◦ Build a multi-stage LLM agentic pipeline that generates test cases from product requirements, with built-in LLM evaluation (evals), guardrails, and context engineering, cutting test authoring time by 75%. ◦ Directed a knowledge-graph prototype that grounds test generation in each customer’s application structure for hallucination mitigation. ◦ Designed an auto-healing algorithm to repair broken test-automation locators across heterogeneous customer applications. ◦ Mentored engineers implementing backup locators and multimodal LLM-based visual analysis with confidence scoring. ◦ Reduced false test failures by 82% across all customers while keeping false positives under 5%. ◦ Provided technical leadership to 10+ engineers across multiple cross-functional teams, shipping 5+ projects through influence without authority.

Founder at Stealth Startup, Apr 2024 - Oct 2025 · 1 yr 7 mos, Bengaluru, • Built and launched a multi-agent generative AI platform (autonomous LLM agents) for investment research and analysis. • Designed an agent-orchestration framework from scratch (zero-to-one), decomposing complex analysis workflows into specialized sub-agents with task-specific tools (tool use / function calling). • Developed a personalization layer that adapts agent output (structured outputs) to each client’s investment mandate and reporting format. • Implemented a Retrieval-Augmented Generation (RAG) system — document parsing, chunking, embeddings, and vector search — for fast, accurate retrieval over earnings call transcripts. • Led customer-facing design-partner collaboration to automate earnings transcript analysis, cutting analyst effort by 33%.

Technical Lead at slice, May 2022 - Apr 2024 · 2 yrs, Bengaluru, - Card Management System (CMS), PPI card ◦ Architectured CMS through primary research and vendor evaluation with RuPay, VISA, vendors, and competitors. ◦ Synthesized the research into a buildable high-level architecture and technical specification that became the blueprint for the entire CMS program. ◦ Scoped all components: multi-tenant management, digital and physical card issuance, card controls and transaction limits, online and offline transaction authorization. ◦ Specified entities, domain models, state machines, data flows, card lifecycle management, and algorithms for every user journey, turning an ambiguous domain into an executable design. ◦ Deployed HSMs for all cryptographic operations (encryption, key management) across DC/DR data centers with disaster recovery, meeting PCI-DSS and RBI regulatory compliance requirements. ◦ Designed a modular monolith with clean service boundaries (domain-driven design), enabling incremental decomposition into microservices for scalability. ◦ Future-proofed the design for extensibility to credit and debit cards and additional card networks (NPCI/RuPay, Visa), avoiding re-architecture for new products. ◦ Projected cost savings of INR 30M annually at launch volume, scaling to INR 100M+ as card volume grows. - Payouts ◦ Built the loan disbursement (lending payouts) platform with bank integrations, defining bank account discovery, penny-drop validation, and transaction behavior. ◦ Designed client-level idempotency and pending-transaction balance locking (concurrency control, transactional integrity), eliminating negative-balance and double-disbursement scenarios. ◦ Implemented event-driven transaction state management using webhooks and asynchronous processing, with end-of-day monetary reconciliation against the ledger.

Software Engineer at Google, Oct 2020 - Apr 2022 · 1 yr 7 mos, Bengaluru, ◦ Built GCP’s revenue recognition system, achieving 100% compliance automation. ◦ Reduced manual intervention by 70% by partnering cross-functionally with product managers and finance leads to translate business requirements into technical solutions. ◦ Delivered 20+ REST APIs with end-to-end architecture, including entities, data modeling, low-level design, API contracts, and business logic. ◦ Designed and built a changelog-capture (audit trail) system, engineered for auditability, extensibility to future business needs, and scale.

Senior Software Engineer, Global Investment Research at Goldman Sachs, Jun 2018 - Sep 2020 · 2 yrs 4 mos, Bengaluru, - Quant ◦ Built statistical and time-series quantitative models computing the Financial Conditions Index (FCI) for 50 countries. ◦ Validated the models via backtesting against 20+ years of history, demonstrating correlation with real economic indicators. ◦ Engineered a real-time data pipeline (MongoDB) delivering FCI data directly to research analysts. ◦ Shipped production REST APIs powering the public FCI dashboard on goldmansachs.com and external client data feeds. - Alternative data modelling ◦ Estimated country-level import/export trends by tracking export-vessel locations (alternative data, predictive modeling). ◦ Modeled the impact of corporate events on stock prices (financial modeling). ◦ Developed Natural Language Processing (NLP) text analytics for trend analysis over historical earnings transcripts, adopted by analysts across the division. ◦ Trained 100+ fundamental analysts to build their own Python data-analysis workflows, seeding automation across the research division.

Software Engineer, Market Risk at Goldman Sachs, Jun 2017 - May 2018 · 1 yr, Bengaluru, • Built data analytics tooling over daily risk-pricing data for the firmwide portfolio. • Reduced the compute cost and runtime of risk-pricing calculations (performance and cost optimization).

Education

Bachelor's Degree, Computer Science, Indian Institute of Technology, Roorkee

High School, Step By Step High School, Jaipur