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Salary
≈ $15k – $37k per year (Estimated)
Location
Hybrid (Bengaluru, India)
Seniority
Senior · 7+ years exp

Confirmed on the employer's own hiring board on Oct 2, 2026. First seen by Alion on Sep 9, 2026. Ascendion scores B on the Alion truth index.

Overview
Company
Impact
Profile match
Ascendion is an American technology services company created in 2022 when Collabera's digital engineering business was separated under private equity ownership and rebranded. It builds software, data platforms and applied artificial intelligence for enterprise clients across financial services, healthcare, retail, technology and communications, and it markets itself around engineering delivery accelerated by its own artificial intelligence tooling rather than around headcount. Headquartered in Basking Ridge, New Jersey with its largest delivery base in India, it employs several thousand engineers across North America, Europe and Asia.

About Ascendion

Ascendion is a leader in AI-powered software engineering, helping businesses innovate faster, smarter, and with greater impact. We partner with Global 2000 clients across North America, UK, Europe, and APAC to solve complex challenges in data, experience design, software product engineering, and workforce transformation. Powered by expert engineers, thousands of AI agents, and our Engineering to the Power of AI™ (EngineeringAI) method, we deliver measurable outcomes that build trust, unlock value, and accelerate growth. Learn more at ascendion.com

Ascendion | Engineering to elevate life

We have a culture built on opportunity, inclusion, and a spirit of partnership. Come, change the world with us:

· Build the coolest tech for world’s leading brands

· Solve complex problems - and learn new skills

· Experience the power of transforming digital engineering for Fortune 500 clients

· Master your craft with leading training programs and hands-on experience

Experience a community of change makers!

Join a culture of high-performing innovators with endless ideas and a passion for tech. Our culture is the fabric of our company, and it is what makes us unique and diverse. The way we share ideas, learning, experiences, successes, and joy allows everyone to be their best at Ascendion.

About the Role"

We are seeking a Senior Elastic Search Engineer / Technical Lead to own the Elastic workstream initiative comparing Elastic Search with Google Retail Search. The role requires hands-on leadership across search architecture, query routing, API integration, data ingestion, relevance, performance, A/B testing and UAT.

Key Responsibilities

· Own the Elastic workstream technical implementation.

· Understand the existing platform, API contract, data schema, ingestion architecture and downstream consumers.

· Define Elastic indexing, mappings, analyzers, queries, relevance and performance strategy.

· Design/contribute to Elastic/Google query routing and common response transformation.

· Ensure existing API contract and data schema remain unchanged.

· Lead Elastic integration with Java applications and microservices.

· Work with data engineers on ingestion extensions and batch/real-time decisions.

· Establish search benchmarks, comparison metrics and A/B-test measurement.

· Analyze Elastic vs. Google differences and lead troubleshooting.

· Define test scenarios covering product, pricing, inventory, taxonomy and search edge cases.

· Lead UAT/business acceptance support and mentor engineers.

· Drive technical decisions, reviews, risk mitigation and documentation.

Required Skills

· 7+ years software engineering experience.

· Deep Elasticsearch expertise including architecture, Query DSL, relevance and performance.

· Strong Java, microservices and REST API experience.

· Distributed systems and data-pipeline knowledge.

· Large-scale search/catalog implementation experience.

· Search relevance and analytics experience.

· Experience integrating platforms without breaking API contracts.

· Strong debugging and performance optimization.

· Technical leadership and ability to deliver under aggressive timelines.

Good to Have

· Retail/e-commerce experience.

· Large product catalog / SKU-based search experience.

· Cloud, Docker, Kubernetes and CI/CD knowledge.

· Streaming or near-real-time data pipelines.

· Semantic/vector search experience.

· Generative AI, AI Agents / Agentic AI or AI-assisted engineering experience.

· Experience using AI/agents for test automation, data mapping, search evaluation, troubleshooting or engineering productivity.

· Google Cloud / Google Retail Search experience.

· Experience with 1M+ SKU catalogs.

· A/B experimentation frameworks.

Want to change the world? Let us know.

Tell us about your experiences, education, and ambitions. Bring your knowledge, unique viewpoint, and creativity to the table. Let’s talk!

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