Staff Software Engineer

Xometry
North Bethesda, MD
On-site

Who this role is best for

Geared toward technically versatile engineers comfortable with AI-assisted sourcing and mentoring, working in a full-time, collaborative environment in North Bethesda, MD.

Best fit for

  • Candidates with 7+ years of experience in full-stack development and AI product engineering
    — “7+ years of professional software development experience”
  • Individuals who have led technical direction and influenced product decisions across teams
    — “setting technical direction across teams, mentoring engineers at all levels, and influencing product and business decisions”
  • Engineers with a background in scaling multi-sided platforms or marketplace systems
    — “Marketplace or multi-sided platform experience is highly desirable”

Things to consider

  • The role demands strong communication skills with both technical and non-technical stakeholders
    — “comfortable engaging with both technical and non-technical stakeholders”
  • This is a full-time position with no mention of remote flexibility or hybrid work arrangements
    — “Xometry participates in E-Verify”

How to stand out

  • Highlight your experience in AI infrastructure and vector search in your resume and interviews
    — “Hands-on experience with the engineering behind AI products”
  • Emphasize your ability to mentor engineers and lead technical decisions in your application materials
    — “Serve as a mentor and guide to engineers across the organization”
  • Showcase projects where you scaled platforms or integrated AI tools into production systems
    — “prior experience with our exact tools is not required”
  • Demonstrate your fluency in modern full-stack technologies, even if not exactly the ones listed
    — “Comparable experience in another modern stack counts just as much”
Pace · Fast PacedCollaboration · HighAutonomy · HighDecision Impact · Company

Derived from job-description analysis by Serendipath's career intelligence engine.

What success looks like

  • reliable software delivery
  • AI adoption
  • technical mentorship
Typical background
7+ years of professional software development

Skills & requirements

Required

Full-stack EngineeringAI InfrastructureCode ReviewTechnical Leadership

Preferred

Marketplace ExperienceMulti-sided Platform

Stack & domain

Backend Services In Typescript And Node.jsGraphql ApisReact And Next.js FrontendPostgreSQLAnalytical Data StoresSearch (opensearch)AI ProductsLLM ApplicationsRetrieval-augmented GenerationVector SearchEmbedding ModelsMultimodal EmbeddingsAgent Orchestration FrameworksModel Fine-tuning And AdaptationDeep Learning Frameworks (pytorch Or Tensorflow)CommunicationCollaborationLeadershipProblem-solvingTeamworkMentorshipSoftware EngineeringAIBackend DevelopmentFrontend DevelopmentDatabase ManagementSearch TechnologyMachine LearningData Analysis

About the role

Original posting from Xometry via Greenhouse

Xometry (NASDAQ: XMTR) powers the industries of today and tomorrow by connecting the people with big ideas to the manufacturers who can bring them to life. Xometry’s digital marketplace gives manufacturers the critical resources they need to grow their business while also making it easy for buyers at Fortune 1000 companies to tap into global manufacturing capacity.

Staff Software Engineer (Thomas)

Thomasnet, part of Xometry, is the industrial platform where millions of buyers find and source from North American manufacturers and suppliers.

We are seeking a Staff Software Engineer to join Thomas engineering. As a senior individual contributor, you will guide software implementation across several engineering teams and influence decisions across our technology organization. Thomas is moving from a traditional supplier directory to AI-assisted sourcing, and you will set technical direction for the shared systems and AI infrastructure that this shift depends on, while staying hands-on in the code.

How You'll Contribute

Hands-on technical leadership. Write and review architectural plans for new projects, then participate in implementation with the teams.

Guide innovation. Champion a good mix of proven and cutting-edge technologies and methods. Know when to change course and when to double down on what already works, including how we adopt AI across the platform.

Teaching and mentorship. Serve as a mentor and guide to engineers across the organization, helping them grow their skills.

Code review. Do code review and mentor others across the org to perform good code reviews.

Operational excellence. Deliver reliable, high-quality software that exceeds customer expectations and aligns with business timelines.

Collaborative strategy. Build strong partnerships with product managers, designers, and leadership to promote open communication, strong collaboration, and high standards.

What You'll Bring

7+ years of professional software development experience, with a track record of owning outcomes, setting technical direction across teams, mentoring engineers at all levels, and influencing product and business decisions.

Strong full-stack engineering skills that are transferrable to our stack: backend services in TypeScript and Node.js with GraphQL APIs, a React and Next.js frontend, PostgreSQL and analytical data stores, and search such as OpenSearch, at production scale. Comparable experience in another modern stack counts just as much; prior experience with our exact tools is not required.

Hands-on experience with the engineering behind AI products: LLM applications, retrieval-augmented generation, vector search, or embedding models. We hire AI-native engineers who build with these tools and judge their output rigorously, whatever the specific frameworks.

Depth in areas our platform is growing into, such as multimodal (image and text) embeddings and search, agent orchestration frameworks (e.g. LangGraph, LangChain), model fine-tuning and adaptation, with deep learning frameworks such as PyTorch or TensorFlow.

A fast learner with high agency who works fluently in an AI-native development environment and shares what they learn. We are all still learning how to build with AI, and we want people who help the team learn faster.

Marketplace or multi-sided platform experience is highly desirable, with an understanding of scaling shared platforms.

Excellent communication and collaboration, comfortable engaging with both technical and non-technical stakeholders, from junior ICs to executives.

We offer a competitive benefits package, including 401(k) match; medical, dental, and vision insurance; life and disability insurance; generous paid time off including vacation, sick leave, floating and fixed holidays, maternity and bonding leave; EAP and other wellbeing resources; and much more.

#LI-Hybrid

Xometry is an equal opportunity employer. All applicants will be considered for employment without attention to race, color, religion, sex, sexual orientation, gender identity, national origin, veteran, or disability status.

For US based roles: Xometry participates in E-Verify and after a job offer is accepted, will provide the federal government with your Form I-9 information to confirm that you are authorized to work in the U.S.

The estimated base salary range for new hires into this role is $170,000 – $195,000 annually + annual bonus, depending on factors such as job-related skills, relevant experience, and location. The total compensation package includes base, bonus, and equity. We also offer a competitive benefits package, including:

401(k) match

Medical, dental, and vision insurance

Life and disability insurance

Generous paid time off including vacation, sick leave, floating and fixed holidays

Maternity and bonding leave

Employee Assistance Program (EAP) and other wellbeing resources

A stipend for catered lunch on Tuesdays and Thursdays

Xometry is an equal opportunity employer. All applicants will be considered for employment without attention to race, color, religion, sex, sexual orientation, gender identity, national origin, veteran, or disability status.

For US based roles: Xometry participates in E-Verify and after a job offer is accepted, will provide the federal government with your Form I-9 information to confirm that you are authorized to work in the U.S.

Source: Xometry careers (Greenhouse)

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