Software Development Engineer

Flex; Austin (TX); Hybrid; USD 120,000 - 180,000; Full time

Job summary

Flex is seeking a Software Development Engineer III (SDE III) who also functions as a Data Scientist, blending software engineering with advanced analytics. Based onsite in Austin, TX, this hybrid role designs intelligent web apps, builds ML models, and supports production systems across the full data-to-deployment lifecycle.

Ideal candidates have strong C# and SQL skills, experience with frontend/backend APIs, and familiarity with MLOps, CI/CD, and OpenAI APIs.

Qualifications

• Bachelor’s or Master’s degree in Computer Science, Data Science, Engineering, or a related field.
• 5+ years of experience in software engineering, data science, or machine learning.
• Strong proficiency in C# and SQL with experience developing frontend and backend applications, APIs, and automation solutions using .NET technologies

Responsibilities

• Design intelligent web applications.
• Build and deploy ML models.
• Support production systems across full data-to-deployment lifecycle.
• Collaborate in Agile environments.

Skills

C#

SQL

Python

Vanilla JS

ML modeling

Software design

Education

Bachelor’s or Master’s degree in Computer Science, Data Science, Engineering, or related field

Tools

MLOps tools

CI/CD pipelines

Model monitoring

OpenAI APIs

Job description

Flex is the diversified manufacturing partner of choice that helps market-leading brands design, build and deliver innovative products that improve the world. A career at Flex offers the opportunity to make a difference and invest in your growth in a respectful, inclusive, and collaborative environment. If you are excited about a role but don't meet every bullet point, we encourage you to apply and join us to create the extraordinary.

We are seeking a highly capable Software Development Engineer III (SDE III) who also functions as a Data Scientist, combining strong software engineering expertise with advanced analytics and machine learning capabilities. This position will be based onsite in Austin, TX.

This hybrid role is responsible for designing intelligent web applications, building and deploying ML models, and supporting production systems. You will work across the full lifecycle—from data exploration and model development to scalable application deployment and ongoing support.

What a typical day looks like:

• Bachelor’s or Master’s degree in Computer Science, Data Science, Engineering, or a related field.
• 5+ years of experience in software engineering, data science, or machine learning.
• Strong proficiency in C# and SQL with experience developing frontend and backend applications, APIs, and automation solutions using .NET technologies
• Python or Vanilla JS experience a plus
• Experience building, deploying, and supporting machine learning models and data-driven applications in production environments.
• Knowledge of machine learning frameworks, statistics, data analysis, feature engineering, and model optimization.
• Strong understanding of software design, data structures, algorithms, and system architecture.
• Ability to troubleshoot, debug, and resolve complex application and model performance issues.
• Experience collaborating in Agile development environments and communicating effectively with technical and business stakeholders.
• Self-motivated with strong problem-solving skills, an ownership mindset, and the ability to independently deliver complex solutions.

The experience we’re looking to add to our team

• Experience with MLOps tools, CI/CD pipelines, and model monitoring.
• Hands-on experience with Generative AI, LLMs, and OpenAI APIs.
• Proven ability to bridge data science experimentation with production-grade software engineering.

Flex is an Equal Opportunity Employer and employment selection decisions are based on merit, qualifications, and abilities. We do not discriminate based on: age, race, religion, color, sex, national origin, marital status, sexual orientation, gender identity, veteran status, disability, pregnancy status, or any other status protected by law. We're happy to provide reasonable accommodations to those with a disability for assistance in the application process. Please email [e-mail] and we'll discuss your specific situation and next steps (NOTE: this email does not accept or consider resumes or applications. This is only for disability assistance. To be considered for a position at Flex, you must complete the application process first).