Backend Software Engineer

Lumafield; San Francisco (CA); On-site; USD 125,000 - 150,000; Full time

Benefits offered by this job

401k

Flexible PTO

Health & wellness stipend

Commuter benefits

Job summary

Lumafield is seeking a Backend Developer to work on the core of our cloud platform in San Francisco, CA. You will implement and deploy backend APIs using Python and Django, and process large datasets using advanced techniques. Candidates should have at least 2 years of experience in a production backend setting. We offer a competitive salary in the range of $125,000 - $150,000 along with equity compensation and a comprehensive benefits package. Join a team that values inclusivity and collaboration.

Qualifications

• 2+ years of experience with Python in a production backend setting using major web frameworks.
• Experience with large dataset processing using numpy.
• Strong software engineering fundamentals including git, unit testing, and pull request reviews.

Responsibilities

• Implement cloud backend APIs using Python and Django.
• Design and deploy code to AWS environments.
• Collaborate closely with product managers to align technical objectives.

Skills

Python

Django

Git

Linux server administration

Team collaboration

Education

Bachelor’s Degree in Engineering or related field

Tools

Docker

AWS (EKS, S3, CloudFront)

Numpy

Job description

About Lumafield:

Lumafield was founded in 2019 to upgrade manufacturing.

We are engineers with deep experience across the product development cycle, from initial ideas to shipping hardware, across industries and specializations, who became frustrated by the cost and complexity of modern manufacturing. So we decided to upgrade it.

Engineers make million-dollar decisions every day, and they need tools that give them the greatest possible insight into their products. By offering unprecedented visibility into products, as well as AI-driven tools that highlight problems and generate quantitative data, Lumafield promises to revolutionize the way complex products are created, manufactured, and used across industries. We started with industrial CT scanning, which for us was the most valuable but underutilized tool in the manufacturing toolbox, enabling us to rapidly inspect essential components non-destructively.

We rebuilt the whole system, from X-ray capture, to computer vision analysis, to web-based collaboration, to the entire business model, making the most advanced manufacturing tech more accessible to every industry. Our company, like our platform, is designed for upgrades. We’re building for greater intelligence, autonomy, and speed. For deeper vision, operational excellence, and powerful insights. And then we'll upgrade it all again.

Lumafield is headquartered in Cambridge, MA, and has an office in San Francisco, CA.

About the role:

On Lumafield’s Backend team, you work on the core of our cloud platform from REST APIs through to massively parallelized data processing pipelines operating on our X-Ray and CT image data. We leverage Python in order to move quickly but ensure that we’re getting the most out of the language through usage of powerful frameworks and parallelism concepts. Our backend team also owns their code all the way through deployment; you’ll work to build your code into Docker containers and deploy them to our different environments including cloud Kubernetes clusters and on-premises servers.

What you’ll do:

• Use Python, Django and Django Rest Framework (DRF) to implement cloud backend APIs

• Use Python, Django, and Celery to implement highly parallelized large dataset processing tasks ranging up to 100s of GBs of data

• Design for and deploy your code to our AWS environment leveraging EKS, S3, CloudFront, and other AWS technologies

• Work closely with our research and algorithms team to incorporate cutting edge algorithms into our production codebases

• Collaborate closely with product managers and engineering leadership to align technical objectives with business deliverables.

• Get your hands dirty and build – expect to be hands‑on and building regularly

About you:

• Bachelor’s Degree in Engineering or related field

• 2+ years of experience with Python in a production backend setting using major web frameworks (Flask, Django, FastAPI, etc.)

• Experience with large dataset processing using numpy

• Strong software engineering fundamentals including git, unit testing, pull request reviews, module/interface design, and applications using parallelism and concurrency.

• Strong team collaboration, communication and interpersonal skills

• Experience with Linux server administration, network troubleshooting, docker deployments, productionizing systems

Bonus points for:

• Experience with Agile Development practices

• Experience with AWS including EKS, S3, CloudFront, or similar

• Experience with image processing pipelines and/or image acquisition

• Experience in configuring Linux systems, applying best practices, and automating workflows with Ansible and scripting.

$125,000 - $150,000 a year

The base salary range listed here represents the anticipated low and high end of the salary range for this position. Actual salaries may vary and may be above or below the range based on various factors including but not limited to work location, experience, and performance. All full time employees receive an equity grant.

We are unable to sponsor or take over sponsorship of employment visas at this time. All applicants must be legally authorized to work in the United States without current or future sponsorship.

Lumafield offers both competitive cash and equity compensation, as well as a health & wellness stipend, 401k, parental leave, flexible PTO, commuter benefits, company wide events and more!

Lumafield is committed to building a team that represents a variety of backgrounds, perspectives, and skills, because the more inclusive we are, the better our work will be. Do you feel like your skills don’t meet every single requirement listed? We encourage you to apply anyway – If you’re excited about our technology, the opportunity, and are eager to learn more we’d love to hear from you!

In keeping with our beliefs and goals, no employee or applicant will face discrimination or harassment based on: race, color, ancestry, national origin, religion, age, gender, marital domestic partner status, sexual orientation, gender identity, disability, genetic information or veteran status.

Reach out if you want to be a part of what we are building.