Expert OpenSearch Consulting
Regardless of the size of your organisation, Sease’s team of professionals has what it takes to make your search project a success. Equipped with extensive technical experience and deep knowledge of the internals of the tech, our OpenSearch specialists guarantee excellent results at every stage of the design and development of your OpenSearch-based search system and in the integration of new techniques related to artificial intelligence.
Take a look at our OpenSearch consultancy services.
Why choose Sease as your OpenSearch experts?
Choosing us as your OpenSearch experts ensures expertise and dedicated support for optimizing your search capabilities.
With +10 years of expertise in search and a proven track record of successful implementations across diverse industries, our team brings in-depth knowledge and experience to every project.
From comprehensive consulting and architecture design to seamless integration and ongoing support, we provide end-to-end solutions that drive tangible results for your organization.
Alessandro Benedetti
DIRECTOR @ SEASE
Alessandro has been involved in designing and developing search-relevant solutions since 2010.
Over the years he has worked on various projects, with various open source technologies aiming to build search solutions able to satisfy user information needs, often integrating such solutions with machine learning and artificial intelligence technologies.
choose our services as the world’s most innovative companies do:










OpenSearch Analysis & Audit
Our OpenSearch exploration and discovery service provides tailored insights and strategic recommendations to optimize your search platform.
We offer expert advice on the architecture, configuration, and usage to enhance user experience and accommodate future needs.
You will get a detailed report, organised to highlight what you have done well and what could have been done better, in a readable and comprehensive format, including configuration/queries examples and corrections.
And the cherry on the cake, we’ll follow up with a call to clarify the report and respond to questions.
OpenSearch Migration Services
migration to OpenSearch
- Evaluation of pros and cons of migrating from a different search technology to OpenSearch.
- Migration from Elasticsearch, Apache Solr, Vespa and other search technologies to OpenSearch.
OpenSearch version upgrade
- Evaluation of pros and cons of upgrading to another version of OpenSearch.
- Upgrade your current OpenSearch version to the latest one
OpenSearch systems design & development
design & development
We undertake the technical design and development of complete search systems or specific features, tailoring solutions to meet our client’s project requirements. We aim to deliver efficient and reliable solutions that exceed expectations.
We are domain agnostic: from an enterprise search engine to e-commerce, from Music to TV shows and economics: we have a deep theoretical and practical understanding of information retrieval techniques and have successfully applied them to OpenSearch in many different domains over the years.
Artificial Intelligence integration to OpenSearch
large language models
Large Language Models can be a powerful ally to power your OpenSearch search.
Our information retrieval experts can guide you through selecting the optimal Large Language Model (LLM) for your project and domain, customizing it to suit your specific needs, and quantifying the enhancements achieved.
- Identify the best Large Language Model for your project
- Customize the LLM and integrate it into your search system
- Evaluate the enhancements achieved with the integration of the Large Language Model.
There are many ways in which our team of OpenSearch experts can enhance your experience using Large Language Models.
Contact us to find out how to proceed with your project and domain.
retrieval augmented generation
Retrieval Augmented Generation opens the door to a completely new user experience where the top-k results of your OpenSearch search are used to power a generative step that provides answers with citations in natural language.
Our team specialize in implementing and evaluating RAG, relying on Apache Solr as your main search backend.
- We evaluate the pros and cons of the implementation of a Retrieval Augmented Generation system into your project
- We integrate and optimize the RAG system into your search engine
neural (vector-based) search
From chunking to the choice of the best embedding model for your use case, our OpenSearch experts can help you implement vector-based search with OpenSearch.
HYBRID SEARCH
Hybrid search techniques allow you to mix traditional keyword search with vector-based search and get the benefits of both worlds.
Our team of OpenSearch experts can help you implement it in your use case.
Learning to Rank
Learning To Rank adds the ability of integrating Machine Learning models to learn better ways of ranking your search results based on many relevance, users’ and business factors.
We applied Learning To rank in many clients’ projects and we would be delighted to help you in implementing it in your OpenSearch instance.
natural language processing
We’ve been integrating NLP techniques in OpenSearch since 2021, with a focus on Named Entity Recognition and Linking, Query intent classification, etc.
With the advent of modern models such as GliNER, this is still incredibly relevant.
We can help you design and implement such integration with your OpenSearch instance.
query/document expansion
Many techniques can implemented in OpenSearch to enrich and expand your query and your document for a better recall and user experience.
Our OpenSearch experts can help you integrate learned sparse vector models into your OpenSearch search and get the benefits and explainability of such interesting approaches!
multi-modal search
Multi-modal search allows you to search across different media such as text, video, audio and images.
We can help you introduce this functionality in your OpenSearch search engine or improve your current solution.
Search Relevancy Tuning in OpenSearch
SEARCH RELEVANCE
Returning relevant search results is hard, but we are up for the challenge!
We’ve been working on improving the relevance of search systems for many years and in many different domains, we explored many techniques, presented approaches at conferences and hosted many pieces of training on the topic.
We can tune the search relevancy of your OpenSearch search system to improve your search experience.
- We can model your data structure and text analysis
- We can design better queries to satisfy your requirements
- We can tune search components and features to target your objectives
- We can integrate advanced boosting/techniques to improve the quality of results.
Search Results Evaluation in OpenSearch
SEARCH system quality evaluation
Being active researchers in the topic of search results evaluation, we are experts in evaluating the quality of your search results.
- We can evaluate your search results and give you a detail report
- We can integrate your search system to our free tool Rated Ranking Evaluator Enterprise, for an easy collection of user’s feedback and overview of your search system quality
OpenSearch optimization Services
Performance Tuning
OpenSearch is a complex project: many things can be achieved in many ways and it’s often not that easy to choose the best implementation and configuration to minimise the memory footprint, disk and CPU utilisation.
And we know very well that resources = money and exhausting resources can lead to production issues and problems.
At Sease, we know the intricacy of OpenSearch internals and our Information Retrieval specialists can help you minimise your resource consumption and maximise the performance of your system.
Query Response/indexing tim
Speed is vital in any search system and OpenSearch is no different.
Achieving good indexing speed allows for fresher results to be available sooner and fast query response time makes your users happy!
We can guide you toward query optimisation and techniques that can speed up your system.
OpenSearch Feature Integration
Our OpenSearch specialists can help you integrate various features to improve the quality of your search system. Choose from one of these or feel free to ask for others.
spellchecker
faceting
sorting
typeahead
multilingual search
-
analysis & audit
- MIGRATION
-
system design & development
-
AI/ML Integrations
-
relevance & quality
-
system optimizations
-
feature integrations
Our OpenSearch exploration and discovery service provides tailored insights and strategic recommendations to optimize your search platform.
We offer expert advice on the architecture, configuration, and usage to enhance user experience and accommodate future needs.
You will get a detailed report, organised to highlight what you have done well and what could have been done better, in a readable and comprehensive format, including configuration/queries examples and corrections.
And the cherry on the cake, we’ll follow up with a call to clarify the report and respond to questions.
Migration to OpenSearch
- Evaluation of pros and cons of migrating from a different search technology to OpenSearch.
- Migration from Apache Solr, Elasticsearch, Vespa and other search technologies to OpenSearch.
OpenSearch Version Upgrade
- Evaluation of pros and cons of upgrading to another version of OpenSearch.
- Upgrade your current OpenSearch version to the latest one.
We undertake the technical design and development of complete search systems or specific features, tailoring solutions to meet our client’s project requirements. We aim to deliver efficient and reliable solutions that exceed expectations.
We are domain agnostic: from an enterprise search engine to e-commerce, from Music to TV shows and economics: we have a deep theoretical and practical understanding of information retrieval techniques and have successfully applied them to OpenSearch in many different domains over the years.
-
LARGE LANGUAGE MODELS
-
RETRIEVAL AUGMENTED GENERATION
-
NEURAL (VECTOR-BASED) SEARCH
-
HYBRID SEARCH
-
LEARNING TO RANK
-
NATURAL LANGUAGE PROCESSING
-
QUERY/DOCUMENT EXPANSION
-
MULTI-MODAL SEARCH
Large Language Models can be a powerful ally to power your OpenSearch search.
Our information retrieval experts can guide you through selecting the optimal Large Language Model (LLM) for your project and domain, customizing it to suit your specific needs, and quantifying the enhancements achieved.
- Identify the best Large Language Model for your project
- Customize the LLM and integrate it into your search system
- Evaluate the enhancements achieved with the integration of the Large Language Model.
There are many ways in which our team of OpenSearch experts can enhance your OpenSearch experience using Large Language Models.
Contact us to find out how to proceed with your project and domain.
Retrieval Augmented Generation opens the door to a completely new user experience where the top-k results of your OpenSearch search are used to power a generative step that provides answers with citations in natural language.
Our team specialize in implementing and evaluating RAG, relying on OpenSearch as your main search backend.
- We evaluate the pros and cons of the implementation of a Retrieval Augmented Generation system into your project
- We integrate and optimize the RAG system into your search engine
From chunking to choosing the best embedding model for your use case, our OpenSearch expert can help you implement vector-based search with OpenSearch.
Hybrid search techniques allow you to mix traditional keyword search with vector-based search and get the benefits of both worlds.
Our team of OpenSearch experts can help you implement it in your use case.
Learning To Rank adds the ability of integrating Machine Learning models to learn better ways of ranking your search results based on many relevance, users’ and business factors.
We applied Learning To rank in many clients’ projects and we would be delighted to help you in implementing it in your OpenSearch instance.
We’ve been integrating NLP techniques in OpenSearch since 2013, with a focus on Named Entity Recognition and Linking, Query intent classification, etc.
With the advent of modern models such as GliNER, this is still incredibly relevant.
We can help you design and implement such integration with your OpenSearch instance.
Many techniques can be implemented in OpenSearch to enrich and expand your query and your document for a better recall and user experience.
Our OpenSearch experts can help you integrate learned sparse vector models into your OpenSearch search and get the benefits and explainability of such interesting approaches!
Multi-modal search allows you to search across different media such as text, video, audio and images.
We can help you introduce this functionality in your OpenSearch search engine or improve your current solution.
Search Relevancy Tuning in OpenSearch
Returning relevant search results is hard, but we are up for the challenge!
We’ve been working on improving the relevance of search systems for many years and in many different domains, we explored many techniques, presented approaches at conferences and hosted many pieces of training on the topic.
We can tune the search relevancy of your OpenSearch search system to improve your search experience.
- We can model your data structure and text analysis
- We can design better queries to satisfy your requirements
- We can tune search components and features to target your objectives
- We can integrate advanced boosting/techniques to improve the quality of results.
Search Results Evaluation in OpenSearch
Being active researchers in the topic of search results evaluation, we are experts in evaluating the quality of your search results.
- We can evaluate your search results and give you a detailed report
- We can integrate your search system into our free tool Rated Ranking Evaluator Enterprise, for an easy collection of user feedback and an overview of your search system quality.
-
performance tuning
-
Query Response / Indexing Time
OpenSearch is a complex project: many things can be achieved in many ways and it’s often not that easy to choose the best implementation and configuration to minimise the memory footprint, disk and CPU utilisation.
And we know very well that resources = money and exhausting resources can lead to production issues and problems.
At Sease, we know the intricacy of OpenSearch internals and our Information Retrieval specialists can help you minimise your resource consumption and maximise the performance of your system.
Speed is vital in any search system and OpenSearch is no different.
Achieving good indexing speed allows for fresher results to be available sooner and fast query response time makes your users happy!
We can guide you toward query optimisation and techniques that can speed up your system.
Our OpenSearch specialists can help you integrate various features to improve the quality of your search system. Choose from one of these or feel free to ask for others.
Spellchecker
Faceting
sorting
typehead
multilingual search
Client's Feedback
I can wholeheartedly recommend the Neural Search end-to-end (in many dimensions, all puns intended!) OpenSearch training from Sease for real-world search engineers and tinkerers. Alessandro and Anna bring their experience and enthusiasm working deep inside the opensource Lucene ecosystem. They are folks in driving seats moving the field forward from the trenches. I have some experience working in search, and yet the opportunity to gain from Anna and Alessandro’s insight into the nitty-gritties of this bleeding-edge transformation the field is going through makes me a better dense search tinkerer today than I was yesterday.
Aditya Varun Chadha
Staff Software Engineer @ Tom Tom