Hire Vetted Data and Analytics Engineers at Upstaff - Page 3

All vetted software engineers you need to build AI, Web3, and data Products.
  • Dedicated Full-time commitment for long-term or Time& Material for shorter or ongoing support
  • Europe, Israel, LatAm, United States, Asia geography coverage
  • Remote and hybrid engagement
  • Trial period, no termination fees or hidden costs for transparent and risk-free onboarding.
Data Analysis
Excel
QuickBooks
...
Engineer with in-depth knowledge in accounting principles, statistical analysis, and technology tools. Notable for their expertise in QuickBooks, MS Excel, and SPSS for financial and data analysis tasks. Proven track record in full-cycle accounting, budget forecasting, financial reporting, and optimization of financial operations through dynamic pricing models and statistical forecasting. Demonstrated ability to improve operational efficiency and decision-making in various roles, including public sector planning and private sector data analysis. Strong foundation in tax compliance, financial accounting, and performance reporting. High proficiency in data analysis, auditing, budgeting, and financial planning, supplemented with skills in Adobe Creative Suite and Canva for creative design and digital marketing.
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Tableau 1yr.
Power BI 1yr.
AWS Redshift 1yr.
...
A seasoned software engineer with a Master's in Electrical Engineering from Lahore University of Management Sciences and a Bachelor's in Computer Engineering from NUST. Specializing in data science, the engineer has honed skills in Tableau, Microsoft Power BI, and Amazon Redshift, showcasing versatility in data analytics and visualization tools. Fluent in English and Urdu, the candidate possesses full professional and native language proficiencies. Contributing to several research projects, the engineer has a track record in machine learning and automation systems, having led a team of 100+ staff on a major metro transit system and developed a localized Urdu search engine. The candidate's technical portfolio includes optimizing Information Retrieval and ML algorithms for news classification and ad-serving systems, aligned with top-tier research in Smart Data Systems and Intelligent Control.
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Seniority Middle
Location Providence, United States
Python
SQL
Business Intelligence (BI)
Celonis
...
With nearly 27 years in consulting and financial services, the engineer exhibits a robust proficiency in BI, ERP, and CRM projects, boasting an extensive background in business process modeling, project, and test management.Skilled in Business Process Mining (Celonis, ARIS). Strong Business Analysis Skills Key qualifications include adeptness in programming with Python, Microsoft SQL, and experience utilizing technologies such as Celonis for process mining. The engineer's track record features successful lead roles in digital transformation projects, evidencing superior skills in managing and executing user acceptance testing for significant banking data migration, enhancing efficiency in the automotive sector, and deploying enterprise solutions, including Microsoft's D365 ERP system.Data analyst (Pandas, Numpy, Polars, Keras, PyTorch, Tensorflow, Matplotlib, Plotly, Seaborn, MS SQL) , building Machine Learning Models in Python Sklearn and LSTM neural network .Experienced PM & Instructor with a demonstrated history of work. Experienced negotiator and salesman, working for German clients. Strong education professional graduated from Borneumoth University.An academic foundation in banking and insurance, complemented by a Python programming certification (PCEP), reinforces a solid command of software engineering principles and methodologies.
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Seniority Expert
Location Warsaw, Poland
React 9yr.
Blockchain 2yr.
Spring Boot
Gemini 3
OpenAI
...

I am a senior software architect and blockchain automation engineer , with over 20 years of professional development experience and 4+ years dedicated to crypto, trading bots, WebSocket systems, and SaaS automation platforms.

My career spans enterprise systems, mobile applications, cloud analytics, authentication infrastructure, and large-scale data platforms — evolving into high-performance blockchain automation and bot engineering across Solana and Ethereum ecosystems.

I specialize in building:

  • Real-time token tracking systems
  • Telegram trading bots
  • Solana Token Bundling, Deployment and tracking platforms,
  • Rug detection & dev-sell intelligence
  • MongoDB-driven analytics platforms
  • Event-driven SaaS backends

All systems are designed for 24/7 uptime, restart persistence, and real trader usage — not prototypes.

Core Expertise

Blockchain & Crypto

  • Solana Web3.js
  • Ethereum (EVM)
  • Pump.fun SDK
  • Token metadata indexing
  • Market cap & liquidity tracking
  • Dev-sell detection
  • Rugpull analysis
  • ATH / ROI analytics
  • Wallet behavior monitoring

Bot & Automation Systems

  • Trading bots
  • Token sniper trackers
  • Telegram bots
  • Volume simulation bots
  • Alert engines
  • Subscription lifecycle managers

Real-time ranking systems

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Java
Python
JavaScript
TypeScript
SQL
...
Software engineer with a robust background in full-stack development and proven expertise in Java and Python. Demonstrated success in architecting and implementing high-transaction APIs with low latency in Java/Spring Boot, and optimizing ETL pipelines using Python/Airflow. Experience includes substantial cost reductions and performance enhancements in cloud environments, AI-driven application development, and leading large-scale software migrations and modernization projects. Holds a master's degree in Computer Science and possesses advanced certifications from prominent institutions, encompassing Java, AWS, and Docker, accompanied by a strong foundation in Agile methodologies.
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Machine Learning 6yr.
Python 5yr.
...
- Senior Machine Learning Engineer with extensive experience in providing innovative machine learning solutions and automation. - Experience with ontology enrichment & transformation, Named Entity Recognition, recommendation systems, sentiment analysis - Experience with Data Engineering stack - Advanced skills in Python, Flask, FastAPI, Redis, Postgres, TensorFlow, PyTorch, Elasticsearch, Docker, and Hugging Face. - Proven track record in data analysis projects implementation.
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Seniority Senior
Location Bulgaria
NLP 6yr.
LLM
...
- Highly experienced Head of Data Science with 12+ years of experience in creating and managing DS/ML teams in startups and corporate projects; - Proficient in AI, NLP, Adtech, Fintech, and CV; - Strong leadership skills and a client-oriented approach; - Skilled in Python, SQL, Prompt Engineering, HuggingFace, PyTorch, Scikit-learn, Pandas, LangChain, LlamaIndex, Spacy, GPT, Plotly, GCP, AWS, Azure, Postgre, MongoDB, BigQuery, and Vector DB; - Proactive in implementing innovative approaches for product features using Generative AI, LLM, and GPT; - Experienced in proposing innovative solutions for new business problems and managing teams; - Holds a PhD in Data Science and a Master's degree in Computer Science.
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Seniority Expert
Location Portugal
SQL
Python
Data Analysis
...
- Software engineer with over a decade of experience and background in AI and data science. - Skilled in predictive machine learning models, financial market analysis, and microcontroller development. - Proficient in Python, SQL, ETL processes, and data visualization tools like Power BI and Tableau. - Demonstrated expertise in managing technical directions of organizations and a history of academic excellence with a Master’s in Agronomy and advanced certifications in Data Analytics and Data Science. - ChatGPT 3 Turbo API and automating analysis tasks, showcasing the ability to leverage modern AI technologies to solve complex problems.
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Seniority Senior
Location Kyiv, Ukraine
Python 8yr.
AWS
...
- Senior Python/ML Engineer with 10+ years in IT and 8+ years of professional Python experience; - Experienced in API and backend development with Python, data processing using Pandas/NumPy, and automation scripting; - Deep SQL expertise, including query optimization and database operations; - Experience with Apache Airflow, Apache Kafka, and Apache Spark/PySpark for data processing and workflow orchestration; - Strong Skills in ML/NLP frameworks such as TensorFlow, PyTorch, BERT, NLTK, and spaCy; - Extensive AWS experience (S3, Athena, EMR, Redshift, SageMaker) and Kubernetes for scalable deployments; - Built and deployed end-to-end ML pipelines and integrated AI solutions into business workflows; - Leadership as an ML engineering team lead.
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AI/ML
ML
Python
...
Results-driven AI/ML Engineer who transforms data into actionable business insights. Led development of recommendation systems that increased user engagement by 35% and fraud detection models that reduced financial losses by $2M annually. Expert in building scalable ML infrastructure and cross-functional collaboration, with experience managing full ML lifecycle from research to production deployment. Combines strong technical expertise in Python, PyTorch, and cloud technologies with business acumen to deliver measurable ROI through AI solutions.
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Seniority Senior
Location United Kingdom
Python 5yr.
JavaScript 5yr.
React Native 3yr.
Vue.js 3yr.
Kotlin 2yr.
...
  • Over 5 years of experience in full-stack development and technical leadership, specializing in backend API design and financial infrastructure integration.
  • Proficient in Python, Flask, SQLAlchemy, JavaScript frameworks (React Native, Vue.js), Kotlin, and multiple SQL databases, with strong expertise in REST & SOAP API development and testing (pytest).
  • Led the fastest Mastercard integration in Latin America, architected systems for virtual/physical card issuance, antifraud, referrals, and P2P/external wire transfers.
  • Skilled in cloud platforms (AWS, Heroku), server management (nginx, IIS), and version control (Git), with experience building scalable, secure financial and educational web applications.
  • Holds a Mechatronics Engineering degree and completed advanced coursework in Data Science and AI, awarded for academic excellence, demonstrating strong analytical and problem-solving capabilities.
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Seniority Architect/Team-lead
Location Mexico
Python 4yr.
SQL
...
  • Data Scientist with 4 years of experience delivering AI-driven solutions in dynamic pricing, demand forecasting, and text analysis using Python, SQL, and ML frameworks like PyTorch, TensorFlow, and XGBoost.
  • Expertise in NLP, embeddings, and conversational AI, demonstrated by projects involving OpenAI API, LangChain, Dialogflow, and advanced text summarization pipelines.
  • Proficient in cloud platforms AWS and GCP, containerization with Docker, and building scalable RESTful APIs for seamless integration.
  • Strong background in system analysis with a Master’s degree, applying statistical models (SARIMA, Prophet) and optimization techniques (SLSQP) to real-world business problems.
  • Skilled in end-to-end AI system development, including data processing, model research, deployment, and continuous maintenance within agile environments.
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Seniority Middle
Location Ukraine
Python 4yr.
NLP 4yr.
GCE
...
  • 4 years of experience designing and deploying ML solutions in NLP, computer vision, speech, and signal processing domains using Python, PyTorch, TensorFlow, and HuggingFace.
  • Expertise in building scalable ML pipelines, including real-time TTS systems, RAG-based legal assistants, and time series forecasting with XGBoost and Prophet.
  • Proficient in data engineering, feature extraction, and hyperparameter tuning with tools like Optuna and MLflow for model lifecycle management.
  • Hands-on experience with cloud platforms (AWS, GCP), containerization (Docker), and experiment tracking to ensure reproducible, production-ready deployments.
  • Master’s degree in Computer Science from Kyiv School of Economics, with strong foundations in algorithms, data processing (Pandas, PySpark), and software engineering best practices.
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Seniority Middle
Location Ukraine
Node.js 6yr.
React 6yr.
Python 5yr.
LangChain 1yr.
AI-agents 1yr.
...
  • Senior Software Engineer with 8+ years of experience in fintech, e-commerce, SaaS, and healthcare, specializing in scalable backend and frontend solutions using Node.js, Python (Django), React.js, and AI frameworks like LangChain.
  • Proven expertise in designing high-performance REST APIs, secure AWS Cognito SSO integrations, and optimizing system efficiency by up to 40% through caching, indexing, and query optimization.
  • Strong background in cloud services (AWS Lambda, Cognito), database management (PostgreSQL, MongoDB, Redis), and modern DevOps practices including Azure DevOps and Docker.
  • Experienced in AI-driven feature integration, multi-regional third-party service orchestration, and mentoring teams to deliver business-critical systems in agile, distributed environments.
  • Holds a B.Sc. in Computer Engineering, with advanced certifications in ReactJS and NodeJS, and fluency in multiple programming paradigms and secure software design principles.
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Python 5yr.
PySpark 5yr.
Apache Spark 5yr.
SQL 5yr.
Databricks 3yr.
...
  • Senior Data Engineer with 5+ years designing scalable lakehouse architectures and distributed data pipelines using Databricks, Snowflake (Snowpark), PySpark, Kafka, and Airflow across healthcare, life sciences, and finance domains.
  • Expertise in building AI/ML-ready feature engineering pipelines, embedding datasets, and integrating ML workflows with MLflow and Databricks Feature Store for clinical risk modeling and forecasting.
  • Proficient in cloud platforms AWS, Azure, and GCP, implementing CI/CD, Terraform IaC, and DataOps frameworks ensuring HIPAA-compliant governance and 99.5% SLA data freshness.
  • Strong background in performance optimization, including Snowflake query tuning (28% improvement), Spark resource tuning (18% cost reduction), and streaming ingestion reducing latency by 45%.
  • Master of Science in Computer Science with hands-on experience in REST API development (FastAPI), containerization (Docker, Kubernetes), and modular data contracts using dbt, enabling robust, scalable data engineering solutions.
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Seniority Senior
Location Connecticut Park, United States
Laravel 5yr.
Node.js 3yr.
Python 3yr.
...
  • Full Stack Engineer with 6+ years of experience architecting scalable web applications and microservices using Node.js (Express) and Laravel, delivering production-grade solutions for UK startups.
  • Expertise in AI-powered automation workflows (n8n, LLM APIs, MCP) and event-driven backends, achieving 50% reduction in document processing time and enhanced cross-team visibility.
  • Proficient in Python scripting for automation, and skilled in databases including MySQL, PostgreSQL, MongoDB, and Neo4j, with hands-on AWS and Docker deployment experience.
  • Strong advocate of TDD, Clean Architecture, OOP design patterns, and modular monoliths, improving code reliability by 60% and system maintainability.
  • Holds a Master’s degree in Software Engineering and fluent in Arabic, French, and English, with proven leadership in remote, distributed agile teams.
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Python 5yr.
Flask 5yr.
FastAPI 3yr.
Django REST framework 3yr.
...
Senior Python Developer with 5+ years specializing in scalable backend systems, RESTful APIs, and AI-driven data pipelines using FastAPI, Django, and Flask. Proven expertise in LLM integration (OpenAI, Deepgram, Vapi) and prompt engineering for real-time AI workflows. Experienced in microservices architecture, cloud DevOps (AWS, Docker, CI/CD), and data processing with Pandas and NumPy. Holds a BSc in Electrical Computer Engineering and currently pursuing MSc, with a strong foundation in software development best practices and system design.
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React
Ext JS
SOLID
Node.js
Python
...
Engineer with 8 years in Web3 and AI/ML development, specializing in decentralized applications and scalable web platforms using React, Next.js, Laravel, and EVM-based blockchain tech. Proficient in Solidity, Python, Node.js, and Rust, with expertise in smart contracts, Web3.js, and AI integration. Experienced in Agile/Scrum methodologies, CI/CD pipelines, and remote collaboration. Holds a Computer Science degree from University College London and has led projects for Ocean Protocol and major streaming platforms using Next.js for high-performance, SEO-optimized frontends.
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Seniority Senior
Location Denver, United States
React 10yr.
TypeScript
Node.js
Vue.js
AWS
...
  • Full-Stack Engineer with 10 years of experience building and scaling web and SaaS products across fintech, edtech, martech, crypto, energy, and AI-driven domains.
  • Skilled in JavaScript, TypeScript, and Python, with hands-on experience in frontend development using React, Next.js, and Vue.js, and backend development with Node.js, NestJS, Express, and Python-based frameworks.
  • Designed and implemented system architectures for complex platforms, including distributed systems, microservices, real-time applications, and API-driven products with PostgreSQL, MongoDB, Redis, ClickHouse, and Elasticsearch.
  • Led full-cycle development of high-load platforms such as crypto trading systems, communication automation tools, educational video platforms, and SaaS products, from requirements and architecture to production launch and scaling.
  • Integrated AI and machine learning components into production systems using OpenAI APIs, LangChain, FAISS, PyTorch, and other AI tooling for personalization, automation, and content generation.
  • Built and maintained infrastructure using Docker, Kubernetes, Terraform, and CI/CD pipelines, working extensively with AWS and Google Cloud environments.
  • Experienced in technical leadership, including frontend architecture ownership, mentoring engineers, hiring, and organizing engineering teams across multiple projects.
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Seniority Senior
Location Valencia, Spain
C/C++/C# 5yr.
MySQL 5yr.
Azure Data Factory 2yr.
.NET Core 1yr.
ASP.NET MVC
...
Software engineer with 5 years of expertise in Microsoft technologies, including C#, ASP.NET Core, Azure Functions, and SQL Server. Skilled in full-stack development with Angular and TypeScript, implementing SOLID principles, Repository and Dependency Injection patterns for scalable solutions. Proficient in Azure Data Factory migrations, cloud serverless architectures, and optimizing SQL queries. Experienced in Agile methodologies, DevOps practices, and leveraging AI tools like GitHub Copilot to enhance development efficiency.
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React 1yr.
TypeScript 1yr.
Node.js 1yr.
Express 1yr.
MySQL 1yr.
...
Software Engineer with over 1 year of experience specializing in full-stack web development using React.js, TypeScript, Node.js, Express.js, and MySQL. Holds a B.E. in Computer Science and Engineering with strong expertise in building scalable e-commerce platforms, real-time analytics, and automated HR systems. Skilled in designing optimized database schemas and RESTful APIs, delivering performance gains including 40% faster page loads and 45-60 ms reduced query times. Proficient in AWS deployment, machine learning with Python and TensorFlow, and responsive UI/UX design, driving end-to-end project delivery in agile environments.
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Python
TypeScript
Architecture and Design Patterns
...

Software Engineer with expertise in competitive programming, solving 1000+ problems on LeetCode/Codeforce, and demonstrated experience in architecting full-stack applications. Proficient in backend development with Python and Node.js, also skilled in mobile app development using Flutter. Track record includes developing high-performance RESTful APIs that handle 50K+ daily requests and implementing scalable FastAPI backends. Bachelor of Science in progress with a focus on software architecture, AI/ML systems from Adama Science and Technology University. Achievements include ranking 8th in ETCPC National Finals among 200+ teams and excelling in core programming languages and software development methodologies.

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Seniority Senior
Location Adama, Ethiopia
Python 5yr.
Django REST framework 5yr.
SQL 5yr.
Celery 4yr.
FastAPI
...

Software engineer with 5 years of experience, excelling in Python/Django backend development and cloud-ready API creation. Proven track record includes architecting a One-Time Setup wizard for Adagrad AI that slashed deployment time by 95%, and designing a SaaS automation platform at Ascent Wellness & Pharma that saved $4,000 monthly and cut manual workflows by 70%. Skilled in advanced databases and cloud operations, with effective system design showcased by the development of a real-time analytics platform that won 3rd place in Maruti Suzuki’s innovation challenge. Holds a Bachelor's degree in Engineering and is proficient in Python, SQL, Django, FastAPI, and a suite of tools and technologies pivotal to modern software development, including Docker, RabbitMQ, and PostgreSQL. Recognized for innovation with awards such as Employee of the Quarter at Adagrad AI.

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Seniority Middle
Location Mumbai, India
Unreal Engine
OOP
Clean Architecture
Python
Docker
...
Expert Data Engineer with 6+ years of professional experience, specializing in DataOps and DevOps, with a master's degree in Industrial Analytics from Uppsala University. Proficient in building scalable data pipelines using a variety of technologies including Snowflake, AWS, Lambda, PySpark, and Kafka, evidenced by success in event-driven pipeline creation and real-time data ingestion projects. Skilled in automating deployment using Ansible and GitHub Actions, and in data transformation with a focus on automation and efficiency. Accomplished in data analysis and visualization, utilizing tools such as Power BI, DAX, and Power Query. Possesses strong programming skills with extensive use of Python, and experience in database support with expertise in SQL. Demonstrated ability to develop IoT solutions, engage in network engineering, and apply advanced Linux administration techniques.
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Seniority Senior
Location Stockholm, Sweden
Flask
Python
Django REST framework
...
Software engineer leveraging robust academic foundation in Computer Science with hands-on experience in Flask, Python, and Django to build scalable web applications. Proven track record in deploying high-traffic websites leveraging advanced Django framework. Strong comprehension of software development life cycle principles, ready to contribute to cutting-edge technology projects.
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Seniority Intern
Location Abbottabad, Pakistan
OOP 2yr.
QA Automation
Data Analysis
...
Software engineer with close to 3 years of experience specializing in AI automation, proficient in Python programming, and experienced in backend systems and workflow automation. Holds a partially completed Bachelor's degree in Business/Commerce with an expected graduation date of March 2026. Demonstrated history of working as a self-employed AI Automation Specialist since March 2023, focusing on data analysis and automation solutions. Notable for applying modern software development practices to optimize operations and improve efficiency.
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Python
AWS
C/C++/C#
LLaMA
LangChain
...
Software Engineer with over 10 years of experience, specializing in AI and full-stack development, demonstrating a strong foundation in computer science with a B.Sc. from the University of Illinois at Chicago. Expert in Python, C#, JavaScript, and cloud technologies such as AWS, Docker, and Kubernetes. Skilled in machine learning frameworks including TensorFlow and PyTorch, further evidenced by AWS Certified Machine Learning and TensorFlow Developer certifications. Proficient in deploying scalable web systems and integrating AI models into high-throughput environments, with a proven track record of enhancing model accuracy and system performance in production-grade systems.
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Seniority Senior
Location Los Angeles, United States
Python 6yr.
Apache Spark 6yr.
SQL 6yr.
AWS 6yr.
Kafka 4yr.
...
Seasoned Data Engineer with over 6 years of industry experience, specializing in the development of robust ETL pipelines, real-time streaming solutions, and advanced data architectures. Outstanding proficiency in Python, PySpark, Kafka, AWS services, Databricks, and Airflow. Demonstrated expertise in automating data workflows, optimizing data models for analytics, and managing data migrations with minimized disruption. Adept at deploying scalable cloud-based data warehousing solutions and enforcing high standards of data quality.
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PySpark
Data Warehousing
ETL
Databricks
Azure Data Factory
...
Software Engineer with 3.5 years of experience in Data Engineering, specializing in ETL and Data Migration solutions. Expert in Azure Data Factory, PySpark, SQL, and Azure Databricks. A proven track record in data pipeline automation, improving data processing workflows, and implementing sound data management practices. Holds a Bachelor of Technology with a strong academic background, and an Azure Data Fundamentals certification from Microsoft. Key skills include technical fluency in data warehousing, cloud services, and software development methodologies like CI/CD. Recognized for reducing compliance errors by 35%, decreasing data retrieval times by 40%, and enhancing reporting capabilities in complex business environments.
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Seniority Middle
Location Hyderabad, India
Python 6yr.
PandasAI
NumPy
...
Senior AI/ML Engineer with over 6 years of experience, specializes in LLM pipelines and generative AI. Demonstrates strength in designing high-performance machine learning algorithms and implementing scalable AI solutions. Proficient in FastAPI, AsyncIO, and Python, with deep knowledge of Pandas, NumPy, and AI/ML technologies like TensorFlow and LangChain. Has successfully deployed complex ETL pipelines and cloud infrastructure, ensuring robust data processing and delivery. Holds advanced certifications and a proven track record in AI project delivery, consistently improving operational efficiencies and business intelligence.
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Python 4yr.
SQL/NoSQL 3yr.
Databricks 3yr.
Big data 3yr.
...
Data Engineer with extensive experience in developing data-driven solutions, leveraging Python, SQL, and ETL/ELT methodologies. Proven track record in optimizing data pipelines and implementing large-scale data warehouses, evidenced by the successful analysis of AirBnB rental prices and product sales strategies. Skilled in Big Data technologies like PySpark, Databricks, and MongoDB, as well as report generation and visualization using Power BI. Holds professional certifications from DataCamp and Microsoft, demonstrating a strong foundation in data fundamentals and Azure services. Played a pivotal role in deploying an LLM powered chatbot at Cisco. Contributed to an increased efficiency and automated processes as a freelance engineer, bringing innovative solutions that enhance operational performance.
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Generative AI
Azure VM
...
Experienced Senior Machine Learning Engineer with over 8 years in AI research and system architecture, developing and scaling AI systems and machine learning models for use in retail, conversational AI, and writing assistance platforms. Distinguished for leading multidisciplinary teams and aligning AI with business strategies, achieving substantial performance improvements and cost savings. Proficient in AI/ML (e.g., deep learning, reinforcement learning, computer vision), data pipeline design, and MLOps (e.g., Kubernetes, Docker), with a strong background in full-stack engineering (Python, C++, Go, Node.js, React) and cloud platforms (AWS, GCP, Azure). Holds a Master's degree in Artificial Intelligence from New York University, complemented by a Bachelor's in Computer Science, validating comprehensive expertise in algorithmic research, technical publications, and significant contributions to domain-specific AI applications.
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Seniority Senior
Location San Antonio, United States