IT App Developer IV

Computer Task; United States; Remote; USD 110,000 - 116,000; Full time

Job summary

CTG, a Cegeka company, seeks a Senior Search Engineer for enterprise search and conversational AI. The role emphasizes hands-on design and optimization using Lucidworks Fusion and related platforms, with strong emphasis on RAG, embeddings, and secure AI integrations.

You will lead pipelines, support AWS/Kubernetes, and collaborate across product, security, and architecture teams in a 6‑month W2 contract, with remote work and ET hours. Occasional travel for meetings is required.

Qualifications

• 5+ years of experience in search engineering, information retrieval, or enterprise application development.
• Hands‑on experience with an enterprise search platform such as Lucidworks Fusion, Solr/Lucene, Elasticsearch/OpenSearch, Algolia, Vespa, or Azure AI Search.
• Experience with semantic and vector search, embeddings, hybrid ranking, and relevance optimization.
• Experience developing RAG solutions, including grounding, prompt design, citations, and AI guardrails.
• Experience supporting AWS and Kubernetes in production environments.
• Proficiency in Java and/or Python, JSON, REST APIs, Git, automated testing, and CI/CD.
• Strong understanding of search schemas, analyzers, tokenization, synonyms, faceting, boosting, filtering, relevance scoring, connectors, and query debugging.
• Strong technical leadership, communication, problem‑solving, and cross‑functional collaboration skills.

Responsibilities

• Lead the design, development, and optimization of enterprise search solutions using Lucidworks Fusion or comparable platforms.
• Build lexical, semantic, vector, and hybrid search capabilities, including relevance tuning, boosting, filtering, facets, and synonyms.
• Develop single-turn and multi-turn conversational search and RAG experiences incorporating intent recognition, query rewriting, session context, grounding, citations, and fallback behavior.
• Integrate enterprise large language model (LLM) services, AI services, and REST APIs with appropriate security, performance, and cost controls.
• Establish search relevance benchmarks, quality metrics, and automated regression tests.
• Troubleshoot search pipelines, APIs, Solr, AWS and Kubernetes environments, model endpoints, and application integrations.
• Collaborate with Adobe Experience Manager (AEM), front-end, product, AI, cloud, security, and architecture teams.
• Implement Git workflows, CI/CD, automated testing, monitoring, and configuration-as-code practices.
• Create technical documentation, architecture diagrams, runbooks, and knowledge‑transfer materials.

Skills

Lucidworks Fusion

Solr/Lucene

Elasticsearch/OpenSearch

Python

Java

REST APIs

CI/CD

AWS

Kubernetes

Information retrieval

Tools

Lucidworks Fusion

Solr/Lucene

Elasticsearch/OpenSearch

Azure AI Search

AEM

Kubernetes

Python

Java

REST

Job description

CTG’s long-standing Fortune 500 client, whom we have supported for over 15 years, has a W2 contract opportunity for a Senior Search Engineer specializing in enterprise search and conversational AI.

Location: Remote; must work Eastern Time hours and travel to site for meetings
Pay Rate: $80.00 - $84.00/hour
Work Hours: Monday - Friday, 8 am - 5 pm Eastern Time
Duration: 6 months with possible extension

Description

We are seeking an experienced Senior Search Engineer to lead the technical design, development, and optimization of enterprise search and conversational AI solutions. This hands‑on role combines search engineering, relevance optimization, retrieval‑augmented generation (RAG), and generative AI to help users find accurate, relevant information.

The successful candidate will build and improve search pipelines, integrate AI services, troubleshoot production systems, and provide technical guidance across application and infrastructure teams. Candidates with strong hands‑on Lucidworks Fusion experience are strongly preferred over those whose experience is limited to other search platforms.

Responsibilities

• Lead the design, development, and optimization of enterprise search solutions using Lucidworks Fusion or comparable platforms.
• Build lexical, semantic, vector, and hybrid search capabilities, including relevance tuning, boosting, filtering, facets, and synonyms.
• Develop single‑turn and multi‑turn conversational search and RAG experiences incorporating intent recognition, query rewriting, session context, grounding, citations, and fallback behavior.
• Integrate enterprise large language model (LLM) services, AI services, and REST APIs with appropriate security, performance, and cost controls.
• Establish search relevance benchmarks, quality metrics, and automated regression tests.
• Troubleshoot search pipelines, APIs, Solr, AWS and Kubernetes environments, model endpoints, and application integrations.
• Collaborate with Adobe Experience Manager (AEM), front‑end, product, AI, cloud, security, and architecture teams.
• Implement Git workflows, CI/CD, automated testing, monitoring, and configuration-as-code practices.
• Create technical documentation, architecture diagrams, runbooks, and knowledge‑transfer materials.

Required Qualifications

• At least 5 years of experience in search engineering, information retrieval, or enterprise application development.
• Hands‑on experience with an enterprise search platform such as Lucidworks Fusion, Solr/Lucene, Elasticsearch/OpenSearch, Algolia, Vespa, or Azure AI Search.
• Experience with semantic and vector search, embeddings, hybrid ranking, and relevance optimization.
• Experience developing RAG solutions, including grounding, prompt design, citations, and AI guardrails.
• Experience supporting AWS and Kubernetes in production environments.
• Proficiency in Java and/or Python, JSON, REST APIs, Git, automated testing, and CI/CD.
• Strong understanding of search schemas, analyzers, tokenization, synonyms, faceting, boosting, filtering, relevance scoring, connectors, and query debugging.
• Strong technical leadership, communication, problem‑solving, and cross‑functional collaboration skills.

Preferred Qualifications

• Strong hands‑on Lucidworks Fusion experience, particularly Fusion 5.x implementation, upgrades, or administration. This is the highest‑priority preferred qualification.
• Experience with Fusion AI, RAY, Learning‑to‑Rank, Relevance Workbench, Analytics Studio, Commerce Studio, or A/B testing.
• Experience integrating search with AEM, commerce platforms, product catalogs, digital assets, or document services.
• Experience with session stores such as Redis, multilingual search, SKU/part‑number search, permissions‑aware retrieval, or structured and unstructured content.
• Knowledge of secure and responsible AI development, privacy, accessibility, and production monitoring.
• Relevant search, cloud, or AI certifications.

About CTG

CTG, a Cegeka company, delivers IT and business solutions that enhance clients’ digital agility, empowering them to seize new opportunities and overcome any challenge. Backed by more than 60 years’ experience and a commitment to being a reliable, results‑driven partner, we work shoulder to shoulder with clients to shape digital together. Our vision is to be an indispensable partner to our clients and the preferred career destination for digital and technology experts. With more than 9,000 team members in over 15 countries, we combine global expertise with local insight to deliver innovative solutions. We operate across the Americas, Europe, and India, working with over 3,000 clients in many of today's highest‑growth industries.

Together, we shape what’s next—working shoulder to shoulder to deliver impactful solutions for our clients and society. Our culture is built by the people who work at CTG, the values we hold, and the actions we take. It’s a living, breathing thing that is renewed every day through the ways we engage with each other, our clients, and our communities. At CTG, you’ll find a workplace where you are encouraged to grow, supported in your ambitions, and empowered to shape your own career journey. For more information, visit www.ctg.com.

CTG will consider for employment all qualified applicants including those with criminal histories in a manner consistent with the requirements of all applicable local, state, and federal laws.

CTG is an Equal Opportunity Employer. CTG will assure equal opportunity and consideration to all applicants and employees in recruitment, selection, placement, training, benefits, compensation, promotion, transfer, and release of individuals without regard to race, creed, religion, color, national origin, sex, sexual orientation, gender identity and gender expression, age, disability, marital or veteran status, citizenship status, or any other discriminatory factors as required by law. CTG is fully committed to promoting employment opportunities for members of protected classes.