Full Stack Developer Startup Jobs in Lancaster, SC

Location: Fort Mill, SC

Onsite Flexibility: Hybrid 3 days a week onsite

• Position Type: Contract
• Contract Duration: 6 months
• Start: May 11, 2026
• Pay Rate: $50.00 $70.00 / Hour (USD)
• Shift / Schedule: 11:00 AM 7:00 PM, flexibility required
• Work Authorization: Applicants must be authorized to work for ANY employer in the U.S. We are unable to sponsor or take over sponsorship of an employment Visa at this time.

As a Senior Support Engineer specializing in SQL within FTSE Engineering, the individual will be expected to lead and supervise day-to-day activities surrounding production support of critical systems. The candidate must be an authority in diagnosing, solving, and resolving complex technical issues that advance beyond first and second-line support, ensuring the stability and reliability of production systems.

The ideal candidate will collaborate with other technology teams and business users to deeply understand the complex user journeys, workflows, and data interactions involved in the Index business lifecycle. This understanding is crucial for effectively addressing and resolving high-level technical support issues.

This role works with the FTSE Engineering 3rd Line Support Manager and will require close collaboration with both internal and external index business collaborators, including Full Stack Developers, Product Owners, Business Analysts, and technology teams. The Senior Support Engineer will also work directly with users and technical teams to manage, diagnose, and resolve technical issues within key Index Platforms, which embrace innovative technologies and AWS cloud-native architecture.

We are looking for an enthusiastic and hard-working software engineer who is adept in long-term fixes for database applications across multiple databases (SQL Server, Sybase, PostgreSQL) and possesses solid experience in providing 3rd line support, including incident management, and collaborating closely with business collaborators.

• Provide 3rd line support, including diagnosing, solving, and resolving complex technical issues related to database systems and integrations, ensuring high availability and performance.
• Work with data-intensive applications, demonstrating a capacity to handle, analyze, and optimize large datasets and complex database structures.
• Debug sophisticated SQL queries, stored procedures, triggers, scripts, cursors, and views, with a focus on SQL code tuning, consolidating views, and supervising database performance metrics.
• Develop and support applications using C#.NET, showcasing proficiency in programming and application development within .NET frameworks to support database operations and integrations.
• Utilize PostgreSQL Aurora, queues, and elastic search to improve data processing and search capabilities.
• Use cloud services (AWS or Azure) for database hosting, scaling, and management.
• Apply experience in Business and Technical Analysis, Quality Assurance, Delivery Management, and/or Emerging Technology and Governance to support project management, quality assurance practices, and the exploration of new technologies.
• Communicate clearly and effectively both verbally and in writing with internal and external collaborators, produce clear documentation, and convey complex technical information to non-technical audiences.

• 8 10 years of experience in C#, .NET, and backend SQL
• 8 10 years of solid experience in database application support across multiple databases (SQL Server, Sybase, PostgreSQL)
• Extensive experience providing 3rd line support, including diagnosing, solving, and resolving complex technical issues related to database systems and integrations, ensuring high availability and performance
• Prior experience working in data-intensive applications, demonstrating a capacity to handle, analyze, and optimize large datasets and complex database structures
• Solid experience in debugging sophisticated SQL queries, stored procedures, triggers, scripts, cursors, and views, with a focus on SQL code tuning, consolidating views, and supervising database performance metrics
• Solid experience in C#.NET, showcasing proficiency in programming and application development within .NET frameworks to support database operations and integrations
• Familiarity with PostgreSQL Aurora, queues, and elastic search, indicating a broad understanding of database technologies and the ability to use these tools for improved data processing and search capabilities
• Good experience with cloud services (AWS or Azure preferred), demonstrating a capability to use cloud-based resources and services for database hosting, scaling, and management
• Some experience in Business and Technical Analysis, Quality Assurance, Delivery Management, and/or Emerging Technology and Governance, reflecting well-rounded abilities that support project management, quality assurance practices, and the exploration of new technologies
• Strong verbal and written communication skills, essential for effective collaboration with internal and external collaborators, clear documentation, and the ability to convey complex technical information to non-technical audiences

• Application support background

• Medical, Vision, and Dental Insurance Plans
• 401k Retirement Fund

• This role requires a 5-round interview process: (1) Codility assessment, (2) Technical interview, (3) Technical/Behavioral with hiring manager, (4) Interview with principal, (5) Interview with Senior Leadership. This is mandated for all engineering division roles and a shorter interview cycle is not available candidates must be prepared for a long interview process.
• Candidates must be willing to complete a Codility assessment in order to be submitted for this role.

Global financial markets data and infrastructure provider.

GTT is a minority-owned staffing firm and a subsidiary of Chenega Corporation, a Native American-owned company in Alaska. We highly value diverse and inclusive workplaces and support Fortune 500 organizations across banking, financial services, technology, life sciences, biotech, utilities, and retail sectors throughout the U.S. and Canada.

Job Number: 26-06880 Industry: Engineering

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