Senior Data & ML Applications Engineer

GCS Recruitment; Wilmington (DE); On-site; USD 120,000 - 180,000; Full time

Job summary

GCS Recruitment is seeking a Senior Software Engineer specializing in data, machine learning, and applications in Wilmington, DE. You will design, develop and deploy scalable software and ML systems.

You will work across data, databases and business teams, write clean, well-documented code, perform testing, and contribute to architecture, data pipelines and performance improvements.

Candidates should have 8+ years of software development experience and strong SQL/ relational database skills.

Qualifications

• Bachelor's degree or equivalent professional experience.
• 8+ years of software development experience.
• Strong SQL and relational database skills.
• Experience designing, developing, or supporting scalable software applications.
• Strong object-oriented design skills.
• Experience with software testing and quality assurance practices.
• Ability to work across application development, data, and business teams.
• Excellent analytical and problem-solving skills.

Responsibilities

• Design, develop, test, and maintain scalable software and Machine Learning applications.
• Write clean, efficient, and well-documented code that meets performance and business requirements.
• Participate in application architecture, system design, and technical solution development.
• Design and build relational databases for application and data processing needs.
• Write and maintain SQL statements for data retrieval, insertion, and processing.
• Support data acquisition, data warehousing, archival, and recovery strategies.
• Evaluate data sources and ensure data quality and integration standards are met.
• Collaborate with customers, business analysts, and technical teams to understand requirements.
• Develop and execute testing strategies to ensure reliable software delivery.
• Track defects, test results, and quality metrics.
• Identify opportunities to improve software processes, application performance, and technical solutions.
• Participate in code reviews and recommend improvements to existing systems.
• Support applications throughout the full software development lifecycle.

Skills

8+ years experience

SQL & relational databases

OO design

Software testing & QA

Cross-functional collaboration

Analytical problem solving

Bachelor's degree or equivalent

Education

Bachelor's degree in Computer Science or related field

Tools

Java

.NET

Node.js

Ruby

AngularJS

Job description

Senior Software Engineer - Data, Machine Learning & Applications

Job Summary

We are seeking a versatile Senior Software Engineer with experience in application development, databases, data processing, and Machine Learning systems. This role will focus on designing and building robust, scalable technical solutions while ensuring high standards for software quality and performance.

The ideal candidate combines strong software engineering fundamentals with experience working with relational databases, SQL, data solutions, and modern application development technologies.

Responsibilities

• Design, develop, test, and maintain scalable software and Machine Learning applications.
• Write clean, efficient, and well-documented code that meets performance and business requirements.
• Participate in application architecture, system design, and technical solution development.
• Design and build relational databases for application and data processing needs.
• Write and maintain SQL statements for data retrieval, insertion, and processing.
• Support data acquisition, data warehousing, archival, and recovery strategies.
• Evaluate data sources and ensure data quality and integration standards are met.
• Collaborate with customers, business analysts, and technical teams to understand requirements.
• Develop and execute testing strategies to ensure reliable software delivery.
• Track defects, test results, and quality metrics.
• Identify opportunities to improve software processes, application performance, and technical solutions.
• Participate in code reviews and recommend improvements to existing systems.
• Support applications throughout the full software development lifecycle.

Required Qualifications

• Bachelor's degree in Computer Science, Information Systems, or a related field, or equivalent professional experience.
• 8+ years of experience in software development, systems engineering, testing, data engineering, or related areas.
• Strong programming experience with technologies such as:
  • Java
  • .NET
  • Node.js
  • Ruby
  • AngularJS
• Strong SQL and relational database experience.
• Experience designing, developing, or supporting scalable software applications.
• Strong object-oriented design skills.
• Experience with software testing and quality assurance practices.
• Ability to work across application development, data, and business teams.
• Excellent analytical and problem-solving skills.

Preferred Qualifications

• Experience building or supporting Machine Learning systems.
• Experience with data warehousing or large-scale data processing.
• Experience evaluating and integrating new data sources.
• Experience with system architecture and application performance optimization.

GCS is acting as an Employment Business in relation to this vacancy.