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NLP 6yr.
LLM
C++
Python
ChatGPT
GPT
Huggingface
LangChain
LlamaIndex
OpenAI
PyTorch
Scikit-learn
Spacy
Boost C++
FastAPI
Pandas
Power BI
FireStore
Google BigQuery
MongoDB
PostgreSQL
SQL
Vector DB
AWS
Azure
GCP
Banking
STL
Adtech
AI
Vector
ViennaCL
...

- 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 (10+ years)
Location Portugal
Python
SQL
NLP
Gen AI
RAG
AWS Textract
Claude
DialogFlow
Docling
ElevenLabs
Gemini
Gemini 3
Grok
Huggingface
Keras
LangChain
LangGraph
NumPy
OpenAI
PyTorch
Scikit-learn
Spacy
Whisper
Gensim
Matplotlib
NLTK
Pandas
Seaborn
MySQL
Oracle Database
PostgreSQL
Sphinx
SQL queries
GCP
Google Cloud Pub/Sub
Active Directory
Flux
API
GraphQL
Twilio
Unix
WildFly
Currency Cloud
Loco Translate
...

- Data Scientist with 4+ years of experience in AI and machine learning; - Specialized in NLP, time series forecasting, and generative AI; - Built RAG systems using OpenAI, Langchain, and custom pipelines; - Developed multi-agent systems for sales enablement, education, and virtual assistants; - Proficient in Python, SQL, and ML libraries like Pandas, Sklearn, Keras, and PyTorch; - Created legal assistants with HuggingFace models and citation-based RAG responses; - Built voice-based chatbots using OpenAI Whisper and ElevenLabs for voice cloning and audio processing; - Designed pipelines for text-to-speech and image generation in mobile and cloud environments; - Extracted and analyzed financial data using AWS Textract and OpenAI VLMs; - Built production-ready support bots using Dialogflow CX, Twilio, and Google Firestore; - Experienced with AWS and GCP for scalable model deployment.

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Seniority Middle (3-5 years)
Location Lviv, Ukraine
Next.js 1yr.
React
Node.js
JavaScript
TypeScript
LangChain
OpenAI
Ant Design
CSS
HTML
Material UI
SCSS
Socket.io
Tailwind CSS
Express
NestJS
i18next
Mongoose
Redux
Redux-toolkit
Vite
Webpack
Airtable
FireStore
MongoDB
MySQL
Typeorm
CloudFlare
CI/CD
Eslint LinkedIn API
RESTful API
Stripe
Swagger
Firebase Auth
GitHub
Github Actions
Jest
Postman
Shopify
Webflow
Wix
WebSockets
Brevo
Chrome Extensions
Markdown
n8n
...

- Proficient in React, TypeScript, Redux, and Tailwind CSS; skilled in creating dynamic, reusable, and responsive UI components using Material-UI, Ant Design, and SCSS. - Expertise in Node.js, NestJS, Express, and Firebase; developed RESTful APIs and real-time features using Socket.IO. - Next.js experience includes server-side rendering, static site generation and used dynamic routing, API integration, and component-based architecture. - Developed critical full-stack functionality for SaaS platforms, e-commerce solutions with Stripe and Shopify integrations, and real-time applications. - Migrated platforms from low-code setups to fully custom React solutions. - Strong knowledge of database management with MongoDB, MySQL, and Airtable, using Mongoose and TypeORM for data modeling. - Integrated AI features using OpenAI APIs and LangChain. - Experience with low-code tools like Webflow and n8n to streamline workflows. - implemented CI/CD pipelines on GitHub Actions, - Team coordination and management experience, including product roadmap planning, features backlog management, code reviews, maintaining technical documentation for knowledge sharing.

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Seniority Senior (5-10 years)
Location Kyiv, Ukraine
UML
GCE
MVC
AWS ML (Amazon Machine learning services)
Python
GPT
Kubeflow
LangChain
OpenAI
OpenCV
Spacy
TensorFlow
Xgboost
FastAPI
Flask
Matplotlib
NLTK
Plotly
PySpark
SciPy
Kibana
Tableau
AWS Redshift
Bigtable
ELK stack (Elasticsearch, Logstash, Kibana)
Google BigQuery
MySQL
SQLAlchemy
GCP AI
Apache ActiveMQ
CI/CD
Jenkins
Docker
Google API
Git
Logstash
Chat GPT
ChurnZero
Faiss
GPT-4
Prophet
Python Requests Library
WebSphere App Serve
...

Certified Data Scientist with a strong focus on NLP, CV, and Recommender Systems backed by 4 years of commercial experience. Proficient in Python with a rich toolset including Pandas, numpy, TensorFlow, and Keras. Possesses a solid track record in building products from scratch and devising innovative solutions with machine learning and data processing methodologies. Hands-on experience in deploying scalable solutions using Kubeflow, Docker, and CI/CD practices, complemented by proficiency with various databases such as MySQL and BigQuery. With a Bachelor’s and Master’s degrees in Cybersecurity Engineering, and continued education via a PhD, the engineer exemplifies a deep understanding of computer science fundamentals and data science trends. This technical expertise, combined with domain knowledge in e-commerce and network security, distinguishes the potential candidate as a valuable asset for fostering growth and innovation in technology-driven environments.

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Seniority Senior (5-10 years)
Location Ternopil, Ukraine
Python
TensorFlow
Snowflake
AWS Redshift
Java
Kubeflow
Prompt Engineering
PyTorch
Immutable.js
Matplotlib
NLTK
Plotly
Seaborn
Struts 2
Apache Hive
Data visualization
Kibana
Power BI
Tableau
AWS ElasticSearch
Clickhouse
ELK stack (Elasticsearch, Logstash, Kibana)
Google BigQuery
HDFS
Azure DevOps
Github Actions
Logstash
Prometheus
MPEG-DASH
Amazon Machine learning services
AutoGPT
AWS ML
DVC
Flink
Hugging Face
JAX RS
LangChain
Legacy Application
Looker Studio
RAG
T5
TFX
...

- Experienced Machine Learning Engineer with Data Engineering skills - Experience in ensemble recommendation systems, customer behavior prediction, and recruitment insights, analytics, chatbots. - Experience in user retention, engagement, operational efficiency increase, enhancing stock turnover, forecasting accuracy, automated damage assessment models, and vehicle security through advanced ML models and BigData. - Worked with industries: insurance, finance, restaurants - Solid expertise with Big Data, Natural Language Processing, Computer Vision

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Seniority Senior (5-10 years)
Location Warsaw, Poland
Python
ML
LLM
AWS SageMaker (Amazon SageMaker)
GPT
LangChain
OpenAI
OpenCV
PyTorch
RAG
Scikit-learn
TensorFlow
Vertex AI
Java
Apache Spark
Matplotlib
NLTK
Plotly
Seaborn
Apache Hive
Microsoft Azure Synapse Analytics
Power BI
Tableau
AWS Redshift
Clickhouse
ELK stack (Elasticsearch, Logstash, Kibana)
Google BigQuery
HDFS
AWS
Azure
GCP
AWS Lambda
Dataproc
DevOps
Kubernetes
Docker Compose
Github Actions
Grafana
Air ow
AutoGPT
CycleGAN
DALL·E 2
Dash
DVC
f
Few-Shot learning
fl
Flink
Hugging Face Transformers
JAX
Kube ow
LLM Agents
Looker
ML ow
ML Studio
Prompt Tuning
Snow ake
Stable Di fusion
Summarization
T5
TFX
YOLO
...
Seniority Senior (5-10 years)
Location Poland
Python
Data Science
NLP
AWS
AWS Lex
AWS ML (Amazon Machine learning services)
AWS SageMaker (Amazon SageMaker)
Azure OpenAI
BERT
ChatGPT
CLIP
FastAi
Gen AI
GPT
Keras
LangChain
LLaMA
LlamaIndex
NumPy
OpenAI
RAG
Scikit-learn
TensorFlow
Vertex AI
Whisper
C#
Fortran
JavaScript
R
VBA
Beautiful Soup
Gensim
Matplotlib
NetworkX
NLTK
Pandas
PySpark
SciPy
Tkinter
CSS
HTML
Django
Django REST framework
FastAPI
Apache Airflow
Jupyter Notebook
Tableau
Google BigQuery
HDFS
HeidiSQL
Microsoft SQL Server
MongoDB
MySQL
MySQL Workbench
PostgreSQL
SQL
Azure
GCP
AWS EC2
AWS EMR
AWS Lambda
AWS S3
Cloud Functions
GCP Compute Instance
Apache Solr
Atlassian Trello
Jira
Redmine
Docker
Eclipse
MatLab
PyCharm
Sublime Text
Visual Studio
Google API
GraphQL
MOZ API
Git
TortoiseSVN
Kanban
Scrum
Kubernetes
Linux
macOS
Windows
PGM
Selenium
App Clips
BITS
Heap Analytics
MS CRM
Octave
Rest Framework
STT
T5
TTS
VITS
...

- Data Scientist with a focus on Natural Language Processing and 16 years of experience in the IT industry; - Experienced in designing cloud-based architectures using BigQuery, Vertex AI, Cloud Functions, Datastore, and Cloud Storage; - Applies machine learning and deep learning techniques to solve problems in NLP, computer vision, and time series analysis; - Solid foundation in unsupervised learning methods, including clustering, anomaly detection, and recommender systems; - Skilled in full-cycle solution design, from requirements gathering to development and deployment; - Specialized in Generative AI, building advanced algorithms and models to address complex tasks using generative techniques; - Experience in ML model development for prediction, classification, and optimization use cases; - Proficient in Agentic AI, creating autonomous systems powered by LLMs for decision-making and workflow automation; - Experienced in text-to-speech technologies and implementation; - Experience with cloud platforms, including AWS (S3, EC2, Lex, Lambda, EMR), Azure OpenAI, and Google Cloud; - Developed applications across macOS, Linux, and Windows environments; - Creative and results-driven, with strong analytical, communication, and presentation skills.

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Seniority Senior (5-10 years)
NLP
AI
Data Lake
Microsoft Azure API
AWS SageMaker (Amazon SageMaker)
BERT
Kubeflow
LLaMA
Mlflow
OpenCV
PyTorch
Scikit-learn
TensorFlow
Whisper
FastAPI
Immutable.js
k-NN
Microsoft Azure SQL Server
AWS
Azure
Azure ML
AKS
Azure Blob Storage
Azure DevOps
Azure Monitor
AWS Bedrock
AWS CDK
AWS Cloudformation
AWS CloudWatch
AWS Elastic Kubernetes Service (EKS)
AWS Lambda
AWS S3
Prometheus
Docker
Github Actions
GitLab CI
Helm
Kubernetes
Kafka
Amazon Machine learning services
AWS ML
AWS SageMaker
Enterprise Resource Planning
ERP
Google PageSpeed Insights
GPT
Hugging Face
LangChain
LlamaIndex
Palm OS
Pinecone
Qdrant
RDS
Weaviate
...

Software engineer with over 8 years of experience, including 5+ years specialized in AI. Proven track record in leading AI strategy, implementing machine learning models, and training teams on AI tool usage. Expertise in Python and various ML libraries (e.g., TensorFlow, PyTorch), as well as in CI/CD, virtualization, and API development. Adept in managing cloud infrastructures (AWS, Azure) and ensuring system performance and efficiency. Holds a Master’s in Project Management, indicating a strong foundation in leading complex technical initiatives.

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Seniority Expert (10+ years)
Location Lviv, Ukraine

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Our journey starts with a 30-min discovery call to explore your project challenges, technical needs and team diversity.
Manager
Maria Lapko
Global Partnership Manager
Trusted by People
Trusted by Businesses
Accenture
SpiralScout
Valtech
Unisoft
Diceus
Ciklum
Infopulse
Adidas
Proxet
Accenture
SpiralScout
Valtech
Unisoft
Diceus
Ciklum
Infopulse
Adidas
Proxet

Want to hire LangChain developer? Then you should know!

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How and where is LangChain used?

  • Secure Messaging: Ensuring encrypted communication
  • Smart Contracts: Automating contract execution
  • Decentralized Applications: Creating dApps
  • Supply Chain Management: Tracking goods efficiently
  • Identity Verification: Securing user identities
  • Medical Records Management: Safeguarding sensitive data
  • Intellectual Property Protection: Securing creative works
  • Voting Systems: Enhancing transparency in elections
  • Real Estate Transactions: Streamlining property deals
  • Insurance Claims Processing: Automating claim procedures

Compare Junior, Middle, Senior, and Expert/Team Lead LangChain Developer roles

Seniority NameYears of experienceResponsibilities and activitiesAverage salary (USD/year)
Junior0-2 years
  • Code implementation
  • Bug fixing
  • Assist in testing
$60,000
Middle2-4 years
  • Module development
  • Code review
  • Collaborate on projects
$80,000
Senior4-6 years
  • Architectural design
  • Mentor junior developers
  • Lead projects
$100,000
Expert/Team Lead6+ years
  • Strategic planning
  • Team management
  • Client interaction
$120,000

Quick Facts about LangChain.

  • LangChain was born in the geeky year of 2015.
  • It’s the go-to for web development and data science projects.
  • To dive into LangChain, you need a solid grasp of Java.
  • Its bestie in the tech world is the mighty Python.
  • LangChain devs swear by coding in their pajamas for good luck!

TOP LangChain Related Technologies

  1. JavaScript
  2. Python
  3. Java
  4. HTML/CSS
  5. SQL

What are top LangChain instruments and tools?

  • Java: Coffee drinkers’ favorite since 1995
  • Python: Not just a snake, released in 1991
  • JavaScript: Web devs’ go-to since 1995
  • C++: The OG, from 1985
  • Rust: Young and promising since 2010
Table of Contents

Talk to Our Expert

Our journey starts with a 30-min discovery call to explore your project challenges, technical needs and team diversity.
Manager
Maria Lapko
Global Partnership Manager

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FAQs on LangChain Development

What is a LangChain Developer? Arrow

A LangChain Developer is a specialist in the LangChain framework/language, focusing on developing applications or systems that require expertise in this particular technology.

Why should I hire a LangChain Developer through Upstaff.com? Arrow

Hiring through Upstaff.com gives you access to a curated pool of pre-screened LangChain Developers, ensuring you find the right talent quickly and efficiently.

How do I know if a LangChain Developer is right for my project? Arrow

If your project involves developing applications or systems that rely heavily on LangChain, then hiring a LangChain Developer would be essential.

How does the hiring process work on Upstaff.com? Arrow

Post Your Job: Provide details about your project.
Review Candidates: Access profiles of qualified LangChain Developers.
Interview: Evaluate candidates through interviews.
Hire: Choose the best fit for your project.

What is the cost of hiring a LangChain Developer? Arrow

The cost depends on factors like experience and project scope, but Upstaff.com offers competitive rates and flexible pricing options.

Can I hire LangChain Developers on a part-time or project-based basis? Arrow

Yes, Upstaff.com allows you to hire LangChain Developers on both a part-time and project-based basis, depending on your needs.

What are the qualifications of LangChain Developers on Upstaff.com? Arrow

All developers undergo a strict vetting process to ensure they meet our high standards of expertise and professionalism.

How do I manage a LangChain Developer once hired? Arrow

Upstaff.com offers tools and resources to help you manage your developer effectively, including communication platforms and project tracking tools.

What support does Upstaff.com offer during the hiring process? Arrow

Upstaff.com provides ongoing support, including help with onboarding, and expert advice to ensure you make the right hire.

Can I replace a LangChain Developer if they are not meeting expectations? Arrow

Yes, Upstaff.com allows you to replace a developer if they are not meeting your expectations, ensuring you get the right fit for your project.