Senior SQL & Backend Support Engineer (AWS)

EPAM Systems Inc; Boston (MA); On-site; USD 120,000 - 170,000; Full time

Benefits offered by this job

Medical, Dental and Vision Insurance (

Health Savings Account

Flexible Spending Accounts (Healthcare

Flexible Spending Accounts (Dependent)

Disability Insurance (Short/Long-Term)

Life and AD&D Insurance

Employee Assistance Program

LinkedIn Learning access

401(k) match

Paid Time Off

Legal Plan and Identity Theft

Accident Insurance

Employee Discounts

Pet Insurance

Employee Stock Purchase Program

Job summary

EPAM Systems, Inc. in Boston seeks an experienced Senior Support Engineer for 3rd line database and application support.

You will diagnose complex issues, lead production support, and collaborate with Index business stakeholders to optimize data workflows on AWS cloud-native platforms. The role requires 8-10+ years in C#, .NET, T-SQL, and across SQL Server, Sybase and PostgreSQL with strong SQL tuning and data-analysis skills.

Qualifications

• 8-10+ years of experience with C#, .NET, and backend T-SQL.
• 8-10+ years of experience supporting database applications across SQL Server, Sybase, PostgreSQL.
• Extensive experience providing 3rd line support — diagnosing, solving, and resolving complex technical issues.
• Experience with data-intensive applications — handling, analyzing, and optimizing large datasets.
• Solid experience debugging complex SQL queries, stored procedures, triggers, scripts, cursors, and views, with a focus on SQL code tuning.
• Solid experience in C#.NET application development to support database operations and integrations.
• Familiarity with PostgreSQL Aurora, queues, and Elasticsearch.
• Good experience with cloud services (AWS or Azure preferred) for database hosting, scaling, and management.
• Some exposure to Business/Technical Analysis, QA, Delivery Management, and/or Emerging Technology and Governance.
• Strong verbal and written communication skills for collaborating with internal/external stakeholders and translating technical issues for non-technical audiences.

Responsibilities

• Lead and oversee day‑to‑day production support activities for critical systems
• Diagnose, solve, and resolve complex technical issues beyond first/second‑line support
• Collaborate with technology teams and business users on Index business lifecycle workflows and data interactions
• Partner with the FTSE Engineering – 3rd Line Support Manager and internal/external business collaborators
• Manage, diagnose, and resolve issues within Index Platforms using AWS cloud-native architecture
• Deliver long‑term fixes for multi‑database applications and manage incident response

Skills

C#

.NET

3rd line support

SQL performance tuning

Data analysis

Stakeholder communication

Cloud services awareness

Problem diagnosis

SQL scripting

C#.NET development

Tools

SQL Server

Sybase

PostgreSQL

PostgreSQL Aurora

Elasticsearch

AWS

Azure

Job description

EPAM Systems, Inc. in Boston seeks an experienced Senior Support Engineer for 3rd line database and application support.

You will diagnose complex issues, lead production support, and collaborate with Index business stakeholders to optimize data workflows on AWS cloud-native platforms. The role requires 8-10+ years in C#, .NET, T-SQL, and across SQL Server, Sybase and PostgreSQL with strong SQL tuning and data-analysis skills.