Vetted SQL Query Optimization Professionals

Pre-screened and vetted.

JC

Jason Chen

Screened

Mid-Level Backend Software Engineer specializing in distributed financial systems

Chicago, IL7y exp
S&S Truck Parts LLCArizona State University

Full-stack engineer with fintech payments experience who shipped an end-to-end guest invoice payment flow emphasizing reliability under retries/failures (idempotency via DynamoDB, async processing with Lambda/EventBridge/SQS + DLQ). Also built a FastAPI backend with Cognito/JWT + scoped guest tokens and a polished React/TypeScript checkout UX, and has performance-focused Postgres/Redis design experience for flash-sale e-commerce workloads.

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LG

luis gonzalez

Screened

Junior Backend/Platform Engineer specializing in cloud-native APIs and data systems

Los Angeles, CA2y exp
PresentifyCalifornia State University, Los Angeles

Startup-style full-stack/backend engineer with hands-on AWS architecture experience who shipped an LLM-driven assessment-question automation feature (Python microservice calling AWS Bedrock via SQS, deployed on Lambda) with strong validation/guardrails and retry strategies. Also improved production scalability by moving a CPU/IO-heavy file upload path out of a Go API into a queue/Lambda design monitored with CloudWatch, and has React+TypeScript experience optimizing analytics dashboards.

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PP

Pratik Patil

Screened

Mid-Level Full-Stack/Product Engineer specializing in B2B SaaS and AI search systems

Fremont, CA5y exp
OpGov.AINortheastern University

Full-stack engineer operating in early-stage, high-velocity environments (OpGov.AI/UST Calibrate) who ships production Next.js App Router features end-to-end (RSC, Server Actions, SEO, RBAC, caching) and owns performance post-launch. Demonstrates strong data/infra depth—designed Postgres JSONB-based event models for DevOps/DORA analytics and tuned queries from ~2s to <50ms, plus built durable ingestion workflows with retries and idempotency on Azure.

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Sriram Krishna - Mid-Level Software Engineer specializing in AI/ML and cloud-native platforms in Redmond, WA

Mid-Level Software Engineer specializing in AI/ML and cloud-native platforms

Redmond, WA5y exp
Quadrant TechnologiesSeattle University

Backend/AI engineer who has built production LLM orchestration and agentic workflow systems in Python/FastAPI on Kubernetes across AWS/Azure. Demonstrated strong reliability engineering by debugging a real-world memory retention issue that caused latency spikes/timeouts, and strong data/performance chops with a PostgreSQL optimization that cut query latency from ~1.2s to ~15ms. Targets roles building scalable, guardrailed AI-driven workflow automation with robust observability and human-in-the-loop controls.

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Manas Agarwal - Junior Full-Stack Software Engineer specializing in Python APIs, React, and cloud AI integrations in Superior, CO

Manas Agarwal

Screened

Junior Full-Stack Software Engineer specializing in Python APIs, React, and cloud AI integrations

Superior, CO2y exp
VertexOneUniversity of New Haven

Customer-facing software engineer who builds and deploys practical AI/RAG solutions (e.g., an AI assistant for searching billing PDFs) by deeply understanding support workflows and iterating with users. Demonstrates strong production instincts—quickly stabilizing peak-traffic API timeouts with caching/background jobs, then implementing durable fixes with proper monitoring and maintainable code practices.

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Ali Ahmad - Senior Full-Stack Software Engineer specializing in React, Next.js, and Node.js in Boston, United States

Ali Ahmad

Screened

Senior Full-Stack Software Engineer specializing in React, Next.js, and Node.js

Boston, United States7y exp
Day TranslationsUniversity of Engineering and Technology, Lahore

Frontend engineer experienced leading enterprise-grade analytics dashboard and portal work by embedding and extending Apache Superset within a client-facing platform. Emphasizes scalable plugin-driven React/TypeScript architecture, quality-at-scale (TypeScript + Jest + reviews), and safe, fast-paced delivery using feature flags, staging validation with real datasets, and performance optimizations like code splitting and lazy loading.

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Ofek Shaltiel - Mid-Level Full-Stack Software Engineer specializing in AI-enabled web platforms in Dallas, TX

Ofek Shaltiel

Screened

Mid-Level Full-Stack Software Engineer specializing in AI-enabled web platforms

Dallas, TX4y exp
HyperWater AIUniversity of Texas at Dallas

Backend/AI engineer in construction tech (HyperWater AI) who delivered major production performance wins (analytics API from ~1 hour to 0.5s) and shipped LLM features for parsing subcontractor manifests into CSI divisions with human-in-the-loop review. Also built a freelance agentic document-verification system using OCR + RAG over pgvector with robust retry/escalation logic and user feedback loops.

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Annie Suzan Edwin Arokiaraj Caroline - Junior Full-Stack Software Engineer specializing in distributed systems and data pipelines in Tempe, AZ

Junior Full-Stack Software Engineer specializing in distributed systems and data pipelines

Tempe, AZ1y exp
Arizona State UniversityArizona State University

Backend engineer with hands-on experience building distributed data and API platforms (Kafka + Neo4j on Kubernetes), including processing 3M+ NYC taxi trip records and achieving sub-second graph analytics queries. Strong focus on reliability and performance in Python/FastAPI systems—async refactors, caching, timeouts/retries, feature-flagged rollouts, and JWT/RBAC security for production services.

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Sanskar Pandey - Junior Full-Stack Java Developer specializing in FinTech microservices in OH, USA

Junior Full-Stack Java Developer specializing in FinTech microservices

OH, USA3y exp
Apex SystemsCleveland State University

Full-stack engineer with production experience building a real-time order tracking system using React + Firebase/Firestore, emphasizing audit-friendly data modeling, state-machine-based status transitions, and strong post-launch ownership (performance, security rules, reliability). Demonstrated measurable frontend performance gains by isolating real-time updates to dynamic components and applying memoization, plus backend reliability patterns (idempotency, retries) and SQL query/index optimization validated with EXPLAIN ANALYZE.

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RR

Mid-level Data Scientist specializing in AI, analytics, and predictive modeling

Boston, MA4y exp
Humanitarians.AINortheastern University

Data analytics and BI professional with experience turning messy institutional and customer data into decision-ready reporting and predictive systems. They combine strong SQL/Python execution with end-to-end ownership of churn analytics, stakeholder alignment, and operational rollout into dashboards and CRM workflows.

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AM

Mid-level ML Engineer specializing in real-time inference and anomaly detection

New York, USA3y exp
Social Tech LabsGeorge Mason University

Built DocMind, an end-to-end PDF chat assistant using React/TypeScript, FastAPI, and Postgres/pgvector, showing full-stack ownership plus practical performance tuning and AWS debugging skills. At Social Tech Labs, improved onboarding, shipped lean under ambiguity, and created a reusable low-latency feature serving layer that reduced duplicated infrastructure work across models.

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VJ

Mid-level Full-Stack & AI Engineer specializing in LLM applications

6y exp
Our National ConversationFitchburg State University

Full-stack engineer who has shipped and operated generative-AI chat/QA features end-to-end, including a RAG-based pipeline with guardrails and cost/latency monitoring in production. Experienced with React/TypeScript + Node/Postgres architectures, Dockerized deployments to AWS (EC2) via GitHub Actions CI/CD, and building reliable ingestion/ETL systems with idempotency, backfills, and reconciliation.

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BS

Mid-level Backend Software Engineer specializing in Python APIs and cloud-native systems

Detroit, MI5y exp
HarmonecareGolden Gate University

Software/product engineer who owns customer-facing internal platforms end-to-end, with deep experience building data pipeline health and data quality tooling (near-real-time alerting and ops dashboards). Strong in React/TypeScript + Python REST architectures and microservices with RabbitMQ, emphasizing reliability patterns (idempotency, DLQs, correlation IDs) and fast, safe iteration via feature flags, testing, and observability.

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SR

Mid-Level Full-Stack Engineer specializing in microservices and cloud APIs

Cary, NC4y exp
YUG TechnologiesIllinois Institute of Technology

Software engineer who builds workflow-centric products end-to-end, including a customer-facing module on the Trident AI content platform and an internal content workflow tool adopted as the default process. Strong in TypeScript/React + FastAPI architectures and in scaling event-driven microservices with RabbitMQ, emphasizing reliability (idempotency, DLQs) and observability (correlation IDs) to reduce outages and debugging time.

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DA

Junior Full-Stack Software Engineer specializing in cloud-native web apps and AI tooling

California, US3y exp
EduQuencherMissouri University of Science and Technology

Software engineer with experience across edtech, live gaming, and an AI document intelligence platform, delivering end-to-end customer-facing features and production backends. Built secure, automated live-session scheduling integrating Zoom and TalentLMS (JWT/RBAC, idempotency, transactions) cutting setup time from ~3 minutes to under 1 minute, and optimized real-time gaming dashboards/APIs with query tuning, caching, and CDN improvements (~60% latency reduction under peak load) on AWS.

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SR

Mid-level Backend Engineer specializing in Python APIs and cloud-native services

Texas, USA5y exp
Verveba TelecomNorthern Arizona University

Data engineer with experience at Morgan Stanley and Star Health owning production-grade lakehouse pipelines for credit risk and healthcare datasets. Built Azure/Databricks/Delta/Snowflake-based platforms processing millions of records per day with strong data quality, observability (Monte Carlo/Azure Monitor), and reliability practices, plus experience delivering curated data services with performance tuning and backward-compatible versioning.

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MA

Manish Abburu

Screened

Mid-level Software Engineer specializing in data pipelines, web scraping, and APIs

Texas, USA3y exp
TEKsystemsTrine University

Backend/data engineer who has owned end-to-end production pipelines and data services, processing ~500K–1M records/day from APIs/logs into MySQL and serving via REST APIs. Strong focus on reliability and data quality (ELK + structured logging/monitoring), with measurable improvements (~30% reduction in bad data, ~20% query performance gains) and experience operating external data collection/scraping systems with anti-bot and schema-change resilience.

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Rethvick Sriram Yugendra Babu - Junior AI/ML Software Engineer specializing in Generative AI and scalable data pipelines in Tucson, AZ

Junior AI/ML Software Engineer specializing in Generative AI and scalable data pipelines

Tucson, AZ2y exp
University of ArizonaUniversity of Arizona

Built and operated large-scale biodiversity/ecological research platforms, integrating 50+ heterogeneous global datasets into a unified BIEN 3 schema on PostgreSQL/PostGIS and improving data consistency by 35%. Strong production engineering background (Linux monitoring, CI/CD performance gates, Docker on AWS/Azure) plus applied AI work building a Python RAG system (0.90 precision) and halving latency with Elasticsearch.

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sampath achalla - Mid-Level Software Engineer specializing in backend and full-stack web applications in USA

Mid-Level Software Engineer specializing in backend and full-stack web applications

USA4y exp
DoJoGaIllinois Institute of Technology

Backend engineer focused on scalable, secure, observable systems—built an async workflow backend with REST APIs and state persistence that improved reliability under concurrent load and cut end-to-end processing time ~40%. Strong in production security for multi-tenant systems (OAuth2/JWT, RBAC, DB row-level security) and in low-risk migrations using feature flags and canary releases, including catching and preventing cross-tenant data access issues with CI-based RLS tests.

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Sampath Achalla - Mid-level Python Full-Stack Engineer specializing in AI microservices and cloud data platforms in USA

Mid-level Python Full-Stack Engineer specializing in AI microservices and cloud data platforms

USA3y exp
DoJaGaIllinois Institute of Technology

Backend-leaning full-stack engineer in fintech/payments who shipped an end-to-end Stripe payments + webhook system for a financial microservices platform, emphasizing ledger accuracy via idempotency, transactional writes, retries, and DLQs. Also delivered a real-time React/TypeScript payment status dashboard informed by user interviews, and improved production performance by 35% p95 latency through PostgreSQL tuning and Redis caching on AWS.

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MUNI CHARAN SINGAMALA - Mid-level Data Analyst/Data Engineer specializing in SQL, ETL pipelines, and BI dashboards in Florida, USA

Mid-level Data Analyst/Data Engineer specializing in SQL, ETL pipelines, and BI dashboards

Florida, USA4y exp
Community Dreams FoundationKent State University

Built and supported a production analytics backend (Python, PostgreSQL/Teradata, Airflow) powering KPI/reporting dashboards, and resolved peak-time latency/timeouts through systematic SQL tuning (EXPLAIN ANALYZE, indexing, query rewrites, pre-aggregations). Also shipped an applied AI-style feature that generates plain-language report summaries from pre-computed metrics with validation, monitoring, and fallback to manual review.

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Shuchi Shah - Senior Software Engineer specializing in Backend Systems and Generative AI (RAG) in San Jose, CA

Shuchi Shah

Screened

Senior Software Engineer specializing in Backend Systems and Generative AI (RAG)

San Jose, CA12y exp
OpGov.AISan Diego State University

Backend engineer with experience building an end-to-end civic tech AI platform that ingests city council meeting videos, transcribes them with Whisper, and enables natural-language Q&A via a LangChain/FAISS RAG pipeline. Demonstrated strong systems thinking by tuning retrieval for accuracy/latency/memory (cutting response time ~3s→1s and memory ~500MB→25MB) and by safely migrating an ERP from monolith toward services using dual writes, reconciliation, and idempotency to protect financial workflows.

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Avanishika Revelli - Junior Software Engineer specializing in backend, cloud, and robotics automation

Junior Software Engineer specializing in backend, cloud, and robotics automation

2y exp
JAGCOArizona State University

Graduate Research Assistant in Robotics at Arizona State University who built an end-to-end LLM-driven task execution framework enabling collaborative robots to convert high-level natural language instructions into safe, executable ROS actions. Implemented robust monitoring, failure detection, and automatic replanning, and addressed real-world issues like timestamp/frame-transform mismatches and heterogeneous robot interoperability using adapter nodes.

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DS

Darshan Shah

Screened

Mid-Level Software Engineer specializing in cloud-native microservices and full-stack development

Holliston, MA6y exp
Liberating TechnologiesNortheastern University

Full-stack engineer with deep startup experience building products from scratch under ambiguous requirements. Delivered a scalable, admin-configurable notification platform (Spring Boot/Java/Kafka) supporting 50+ notification types across 3 channels for 10k+ users, cutting new notification setup to ~5 minutes. Also built a Tinder-meets-LinkedIn job-swiping app (React/TS + Node/Prisma) and has hands-on AWS production ops (ECS/EKS, RDS, CloudWatch) plus multiple third-party integrations (Stripe, QuickBooks, Twilio).

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