Point Of Sale Developer

Point Of Sale Backend Developer

Location:

Bethesda, MD

Work Environment:
Hybrid - 4 days onsite, 1 day remote

Experience Level: Expert Level

Employment Type:

Contract

Position Overview

We are seeking a strong Backend Developer to design, build, and scale high-performance data integration pipelines and serverless backend services within a modern Azure-based architecture. This role will focus on developing reliable, high-throughput REST APIs, automating ETL/ELT workflows, and optimizing complex relational database layers to support seamless data movement across enterprise systems.

The ideal candidate will have deep experience with C#/.NET, Azure Functions, advanced SQL, RESTful web services, and enterprise data integration. This is a highly impactful role supporting backend systems that power digital ordering, POS platforms, analytics, and real-time operational decision-making.

Key Responsibilities

+ Design, build, and maintain scalable backend services using C#/.NET.

+ Develop and support serverless applications using Azure Functions, including HTTP and Timer bindings.

+ Build high-throughput RESTful APIs to support enterprise system integrations.

+ Create, automate, and optimize ETL/ELT data pipelines across multiple business-critical platforms.

+ Write, tune, and troubleshoot complex SQL queries, stored procedures, indexes, and relational database performance issues.

+ Support data movement across POS, digital ordering, analytics, and enterprise application environments.

+ Implement scalable backend solutions with a focus on concurrency, caching, data serialization, and performance optimization.

+ Collaborate with business and technical stakeholders to understand integration needs and deliver reliable backend solutions.

+ Support CI/CD deployment processes using tools such as Azure Dev Ops and/or Git Hub Actions.

+ Monitor application health and performance using Azure monitoring tools, including Application Insights.

Required Qualifications

+ 4+ years of professional backend development experience with C#/.NET.

+ Hands-on experience building decoupled, maintainable enterprise backend services.

+ Strong experience with Microsoft Azure, specifically serverless architecture and Azure Functions.

+ Advanced SQL skills, including complex query writing, stored procedure development/debugging, and index tuning.

+ Experience designing and developing RESTful web services.

+ Proven experience building ETL/ELT pipelines and integrating disparate enterprise systems.

+ Strong understanding of performance optimization, concurrency, caching strategies, and data serialization.

+ Experience working in CI/CD environments.

Preferred Qualifications

+ Experience working with Point of Sale (POS) systems or POS analytics platforms.

+ Experience in hospitality technology, retail, restaurant, airport, or other high-volume transaction-based environments.

+ Familiarity with Azure Application Insights, Azure Dev Ops, and Git Hub Actions.

+ Experience supporting real-time digital ordering, transaction processing, or enterprise reporting platforms.

What You'll Work On

This role supports a major backend modernization initiative focused on scaling and improving enterprise data infrastructure. As digital ordering, POS systems, and analytics platforms continue to expand, this position will help build the APIs, data pipelines, and serverless services needed to ensure accurate, timely, and reliable data flow across the organization.

Interview Process

+ Initial 15-minute virtual screening with a member of the hiring team

+ Technical evaluation

+ Onsite 1-hour discussion with stakeholders

Work Environment

+ Hybrid schedule based in Bethesda, MD

+ 4 days onsite and 1 day remote

+ Collaborative technical environment supporting enterprise-scale backend modernization

This is a great opportunity for a backend engineer who enjoys building scalable data services, modernizing integration platforms, and working on systems that directly impact business operations and customer-facing technology.

Job Type & Location

This is a Contract position based out of Bethesda, MD.

Pay and Benefits

The pay range for this position is $55.00 - $75.00/hr.

Eligibility requirements apply to some benefits and may depend on your job classification and length of employment. Benefits are subject to change and may be subject to specific elections, plan, or program terms. If eligible, the benefits available for this temporary role may include the following:

- Medical, dental & vision
- Critical Illness, Accident, and Hospital - 401(k) Retirement Plan
- Pre-tax and Roth post-tax contributions available
- Life Insurance (Voluntary Life & AD&D for the employee and dependents) - Short and long-term disability
- Health Spending Account (HSA) - Transportation benefits
- Employee Assistance Program
- Time Off/Leave (PTO, Vacation or Sick Leave)

Workplace Type

This is a hybrid position in Bethesda,MD.

Final date to receive applications

This position is anticipated to close on Aug 8, 2026.

About TEKsystems

We're partners in transformation.…