Role description
Job Title: Senior Back End Engineer – AWS Open Search
Location: Mississauga, Ontario, Canada (Onsite)
Job Description
Role Summary
- Need a seasoned backend engineer to design, implement, and operate a semantic search platform on AWS OpenSearch, focusing on vector search, index design/management, and high-throughput APIs. The role requires strong backend development skills in TypeScript, JavaScript, and/or Python.
AWS OpenSearch – Detailed Requirements
- Cluster Design & Management: Expertise in setting up and scaling
- AWS OpenSearch clusters for high availability and performance, shard/replica strategy, cluster sizing, and resource optimization.
- Vector Search Implementation: Hands-on experience with k-NN/HNSW algorithms for semantic search and managing vector indices for embeddings-based retrieval.
- Index Database Management: Proficiency in creating and maintaining index templates, analyzers, tokenizers, and custom mappings; implement ILM policies for rollover and retention.
- Query & Relevance Tuning: Deep knowledge of OpenSearch Query DSL, boosting strategies, hybrid search (BM25 + vector), synonym handling, and multilingual optimization.
- Data Ingestion & Pipelines: Build scalable ingestion pipelines for structured/unstructured data and embeddings; integrate with streaming/batch frameworks (Kafka, Kinesis).
- Security & Compliance: Configure IAM roles, VPC networking, encryption (at-rest/in-transit), and KMS for key management.
- Monitoring & Observability: Implement metrics, logs, dashboards for cluster health and query performance; set up s for anomalies and failures.
- Backup & Disaster Recovery: Manage snapshot policies, restore procedures, and failover strategies.
Key Responsibilities
- Design and implement vector search and index management in AWS OpenSearch.
- Develop and maintain backend APIs and services using TypeScript, JavaScript, and Python.
- Build scalable ingestion pipelines for documents and embeddings.
- Ensure performance optimization, observability, and reliability of search services.
- Implement security best practices and compliance measures.
- Collaborate with cross-functional teams and mentor junior engineers.
Required Skills
- Strong expertise in AWS OpenSearch including vector search and index management.
- Backend development experience in TypeScript, JavaScript, and Python.
- Knowledge of distributed systems, caching strategies, and API design.
- Experience with CI/CD pipelines and containerization (Docker/Kubernetes).
- Familiarity with observability tools and performance tuning techniques.
- Understanding of security practices and AWS ecosystem services.
Skills
Mandatory Skills : AWS Lambda, Python
Other details
Benefits/perks listed below may vary depending on the nature of your employment with LTIMindtree (“LTIM”):
Benefits and Perks:
- Comprehensive Medical Plan Covering Medical, Dental, Vision
- Short Term and Long-Term Disability Coverage
- 401(k) Plan with Company match
- Life Insurance
- Vacation Time, Sick Leave, Paid Holidays
- Paid Paternity and Maternity Leave
The range displayed on each job posting reflects the minimum and maximum salary target for the position across all US locations. Within the range, individual pay is determined by work location and job level and additional factors including job-related skills, experience, and relevant education or training. Depending on the position offered, other forms of compensation may be provided as part of overall compensation like an annual performance-based bonus, sales incentive pay and other forms of bonus or variable compensation.
Disclaimer: The compensation and benefits information provided herein is accurate as of the date of this posting.
LTIMindtree is an equal opportunity employer that is committed to diversity in the workplace. Our employment decisions are made without regard to race, color, creed, religion, sex (including pregnancy, childbirth or related medical conditions), gender identity or expression, national origin, ancestry, age, family-care status, veteran status, marital status, civil union status, domestic partnership status, military service, handicap or disability or history of handicap or disability, genetic information, atypical hereditary cellular or blood trait, union affiliation, affectional or sexual orientation or preference, or any other characteristic protected by applicable federal, state, or local law, except where such considerations are bona fide occupational qualifications permitted by law.
Benefits
Compensation range: $120,000.00 to $125,000.00 per year
About LTM
LTM is an AI-centric global technology services company and the Business Creativity partner to the world’s largest and most disruptive enterprises. We bring human insights and intelligent systems together to help clients create greater value at the intersection of technology and domain expertise. Our capabilities span integrated operations, transformation, and business AI — enabling new ways of working, new productivity paradigms, and new roads to value. Together with over 87,000 employees across 40 countries and our global network of partners, LTM — a Larsen & Toubro company — owns business outcomes for our clients, helping them not just outperform the market, but to Outcreate it. Please also note that neither LTM nor any of its authorized recruitment agencies/partners charge any candidate registration fee or any other fees from talent (candidates) towards appearing for an interview or securing employment/internship. Candidates shall be solely responsible for verifying the credentials of any agency/consultant that claims to be working with LTM for recruitment. Please note that anyone who relies on the representations made by fraudulent employment agencies does so at their own risk, and LTM disclaims any liability in case of loss or damage suffered as a consequence of the same. Recruitment Fraud Alert - https://www.ltimindtree.com/recruitment-fraud-alert/
