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Biswajit Sahu, Software Engineer, Applied AI

Biswajit Sahu

Software Engineer, Applied AI·xAI (Freelancer)

India

Bachelor's degree, Computer Science

Work experience

Total years of experience: 10 years, 11 months

Software Engineer, Applied AI

January 2026 - Present

xAI (Freelancer)

Bengaluru, India •Remote

January 2026 - Present

Developed a Python-based HITL preference data platform for RLHF and DPO fine-tuning, orchestrating paired AI coding agents in
isolated Docker sandboxes with synchronized Git worktrees for blind A/B model comparison.
• Engineered an LLM-as-a-Judge evaluation pipeline to detect hallucinations and filter low-quality training data, enforcing strict validation
via Pydantic schemas and SHA-256 cryptographic tamper detection.
Company industry:
IT Services

Software Enginner, Applied AI

January 2026 - Present

xAI

Bengaluru, India •Remote

January 2026 - Present

Company industry:
Software Development

Staff Engineer, Applied AI

May 2025 - January 2026

Clari

Bengaluru, India

May 2025 - January 2026

• Led the design and deployment of AskClari, an enterprise grade conversational AI product leveraging large scale LLMs,
LangChain and RAG to enable advanced reasoning across 100M+ documents for 1, 000+ organizations in production.
• Developed an extensible agent orchestration framework that leverages LLM reasoning to decompose user queries, dynamically
select and invoke the appropriate MCP servers (Glean, CRM) and database agents, and compose final responses through an
iterative planning and execution loop.
• Built a robust, SLA driven pipeline orchestrator in Python using Airflow to automate and enhance workflows across 50+ cross
functional data streams; integrated automated retry logic and observability hooks, ensuring seamless processing of large scale
datasets with zero manual intervention.
Company industry:
Sales Outsourcing

Staff Engineer, Applied AI

May 2025 - January 2026

Clari

Bengaluru, India •Hybrid

May 2025 - January 2026

• Spearheaded AskClari, a production LLM and RAG conversational AI platform built on LangChain, retrieving and reasoning over
100M+ documents for 1, 000+ enterprise organizations; led 10 engineers with a USD 200K AI inference and cloud budget.
• Architected an agentic AI orchestration framework with multi-step reasoning and tool use, decomposing user queries, invoking MCP
servers (Glean, CRM systems), and assembling final responses through iterative planning and execution.
• Operationalized an Airflow-based pipeline orchestration framework for 50+ cross-functional data streams, standardizing retries,
monitoring, and observability hooks to maintain large-scale processing under SLA.
Company industry:
Pharmaceutical Manufacturing

Senior Software Engineer

October 2021 - September 2024

Zeta (Directi)

Bengaluru, India

October 2021 - September 2024

• Reengineered PayZapps event-sourced transaction passbook using Java, SpringBoot, Kafka, and Redis clustering on AWS, reducing
REST API page load latency from 5s to 800ms (84% improvement) for 15M+ monthly active users.
• Designed and deployed a reusable Java/SpringBoot authorization module adopted across 5 production backend services, standardizing
authentication and access control platform-wide.
• Mentored a team of 6 engineers through complex distributed systems challenges, translating architecture decisions into clear technical
milestones that accelerated team delivery velocity.
Company industry:
Other Business Support Services

Staff Engineer

May 2019 - October 2021

Drishti Labs

Bengaluru, India

May 2019 - October 2021

• Designed and implemented a customer configuration service supporting multiple critical microservices, deployed on Kubernetes
for scalable and resilient operations.
• Developed a Python configuration manager wrapper, enabling microservices to securely retrieve credentials.
• Architected the centralized data platform based on the CQRS pattern, leading to enhanced write throughput.
• Integrated NewRelic for enhanced observability, reducing incident response times by 30%.
Company industry:
Manufacturing

Staff Engineer, Backend

May 2019 - October 2021

Drishti Labs

Bengaluru, India

May 2019 - October 2021

• Designed the central data platform on a CQRS plus event sourcing pattern in Java, decoupling write commands from read projections
and sustaining 5, 000 events/sec ingestion across distributed producer services.
• Instrumented the full service fleet with NewRelic for structured logs, RED metrics, distributed traces, and alerting; defined SLOs and
incident response rules that cut MTTR from 60 min to 42 min (30% reduction).
• Developed a Python configuration manager wrapper enabling microservices to securely retrieve credentials, eliminating hardcoded
secrets across the platform.
Company industry:
Software Development

Software Engineer II

January 2018 - May 2019

BigBasket

Bengaluru, India

January 2018 - May 2019

• Led code profiling and optimization efforts in Python, resulting in a 25% reduction in latency for critical services.
• Integrated Simpl (pay later) payment method into the order checkout flow, boosting checkout speed and improving conversion
rates by 40%.
• Led the initiative for adopting unit tests across various services, improving code reliability and reducing bugs.
• Devised a method to create a lightweight MySQL database for testing, cutting test execution time by 50%.
Company industry:
Retail & Wholesale

Software Engineer II, Backend

January 2018 - January 2019

BigBasket,

Bengaluru, India

January 2018 - January 2019

profiling; integrated Simpl
pay-later with idempotent payment intents and circuit breakers; pioneered ephemeral MySQL CI databases reducing test execution time. Built order management console; integrated Silk profiling to
resolve bottlenecks; designed real-time group feature with concurrent state synchronization. Designed Account Management module; revamped Pricing
module automating invoice generation and payment processing workflows.
Company industry:
Retail & Wholesale

Software Engineer

August 2016 - December 2017

Spoyl

Bengaluru, India

August 2016 - December 2017

• Developed an order management console, streamlining operations and reducing order processing time by 60%.
• Integrated Silk (Python profiling tool) to identify and resolve codebase bottlenecks, optimizing performance.
• Designed a group feature, enhancing customer engagement by 60% and driving a 40% increase in revenue.
• Created a versatile notification module for social media, improving customer communication efficiency.
Company industry:
Internet & E-commerce

Software Engineer, Backend

January 2016 - December 2017

Spoyl,

Bengaluru, India

January 2016 - December 2017

Company industry:
Internet & E-commerce

Software Engineer, Backend

July 2015 - August 2016

Happay

Bengaluru, India

July 2015 - August 2016

• Designed and implemented an Account Management module to track and manage client accounting details.
• Revamped the Pricing module, automating invoice generation and reducing processing time by 30%.
Company industry:
IT Services

Software Engineer, Backend

January 2015 - January 2016

Happay,

Bengaluru, India

January 2015 - January 2016

Company industry:
IT Services

Education

IIIT Bhubaneswar

May 2015

May 2015

Bachelor's degree, Computer Science

India

GPA (percentage): 7.4%

GPA (percentage): 7.4%

Skills

ARTIFICIAL INTELLIGENCE

Intermediate

AMAZON WEB SERVICES

Intermediate

DATA ENGINEERING

Intermediate

DATA PIPELINES

Intermediate

DOCKER SOFTWARE

Intermediate

JAVA PROGRAMMING LANGUAGE

Intermediate

LEADERSHIP

Intermediate

MICROSOFT CERTIFIED PROFESSIONAL

Intermediate

PYTHON PROGRAMMING LANGUAGE

Intermediate

SOFTWARE ENGINEERING

Intermediate

COMMAND QUERY RESPONSIBILITY SEGREGATION SOFTWARE DEVELOPMENT

Intermediate

COMPUTER PROGRAMMING

Intermediate

CONTAINERIZATION

Intermediate

DISTRIBUTED COMPUTING

Intermediate

EVENT DRIVEN PROGRAMMING

Intermediate

RESILIENCE

Intermediate

SERVICE LEVEL MANAGEMENT

Intermediate

TRUSTWORTHINESS

Intermediate