Full-Time

Principal Product Development Engineer

Hardware Engineering

Posted on 9/25/2025

LightForce

LightForce

201-500 employees

3D printed personalized braces and trays

No salary listed

Burlington, MA, USA

In Person

Category
Hardware Engineering (1)
Required Skills
CAD
Python
JavaScript
SQL
Data Analysis
Requirements
  • Masters in Mechanical or Biomedical Engineering with 10+ years of experience in product development or design, OR PhD with 6+ years of experience.
  • Deep expertise with end-to-end product development
  • Extensive mechanical design expertise including appropriate utilization of CAD, hand calcs, simulations, and testing
  • Hands-on build and prototyping experience, e.g. 3D printing and machining
  • Knowledge of additive manufacturing processes and material properties and behavior as it related to DFM and product performance
  • Familiarity with basic programming, e.g. Python, JavaScript, SQL
  • Exceptional problem-solving skills with the ability to analyze complex data and develop effective solutions
  • Ability to execute independently in ambiguous environments while tackling multiple projects simultaneously
  • Excellent verbal and written communication skills with the ability to convey complex technical concepts to diverse audiences.
Responsibilities
  • Design, develop, and implement new products and improvements to existing products.
  • Develop comprehensive testing and measurement methods to enable rapid design iteration and validation of product performance prior to launch.
  • Generate design output requirements to support development, V&V activities, and buildout of manufacturing specifications.
  • Define roadmap to implement methods to characterize product performance at point of use / during application. Use these methods and data to drive technical roadmap and further design improvements.
  • Leverage a deep understanding of LightForce’s fundamental business and operation to conceptualize new products and strategies to support the next phase of growth.
  • Provide technical leadership to mentor younger engineers and contribute to a strong culture of engineering excellence and ownership.

LightForce Orthodontics provides customized, 3D-printed orthodontic solutions for dental clinics. The core offering is personalized braces that are 3D printed to match each patient’s tooth shape, resulting in stronger bonding and full freedom of tooth movement. The company also sells LightTrays, patient-specific indirect bonding trays made from a proprietary material, which speed up and simplify bracket bonding and are only compatible with LightForce braces. All products are managed through LightPlan, a web-based platform that lets clinicians design, adjust, and approve every aspect of a treatment plan. The business model revolves around selling these personalized brackets, bonding trays, and access to the LightPlan platform to dental clinics and orthodontists. Overall, the goal is to streamline orthodontic treatment by combining digital design, 3D printing, and an integrated planning and bonding workflow to improve efficiency and outcomes for patients.

Company Size

201-500

Company Stage

Growth Equity (Venture Capital)

Total Funding

$200.6M

Headquarters

Burlington, Massachusetts

Founded

2015

Simplify Jobs

Simplify's Take

What believers are saying

  • LightBracket Metal launched in 2026 targets 65% metal segment of $4.7 billion orthodontics market.
  • 2026 studies show ceramic brackets cut appointments 60% and treatment times 43% versus traditional braces.
  • $80M Series D in 2023 funds world's largest 3D-printed medical device facility for scale.

What critics are saying

  • Invisalign's 2.4M cases in 2025 erode fixed braces demand by 60-80% in 12-24 months.
  • uLab Systems undercuts at $500-800 per case versus LightForce's $2,000+ pricing in 6-12 months.
  • FDA mandates 510(k) resubmissions for metal printing process, halting production in 6-12 months.

What makes LightForce unique

  • LightForce generates patient-specific 3D-printed brackets from orthodontist's digital treatment plans across six parameters.
  • Proprietary light-based 3D printing enables micron-accurate bracket bases matching individual tooth morphology.
  • LightPlan platform and LightTrays allow orthodontists to delegate bonding to clinical staff precisely.

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Benefits

Unlimited Paid Time Off

Paid Vacation

Paid Holidays

Health Insurance

Dental Insurance

Vision Insurance

Life Insurance

401(k) Retirement Plan

401(k) Company Match

Paid Parental Leave

Growth & Insights and Company News

Headcount

6 month growth

0%

1 year growth

1%

2 year growth

1%
Pulse 2.0
Sep 5th, 2024
LightForce Orthodontics Raises $50M Funding

LightForce Orthodontics has secured $50 million in growth capital from Trinity Capital. LightForce specializes in 3D-printed personalized braces, utilizing AI for accurate digital representations of patient anatomy. Ryan Kaeding of Trinity praised LightForce's innovative technology, while CEO Alfred Griffin III expressed excitement about the partnership and its role in driving business growth.

Business Wire
Aug 3rd, 2023
LightForce Orthodontics Secures $80 Million Series D Funding Led By Ally Bridge Group, Opens Second Digital Factory

LightForce Orthodontics, makers of the world’s first fully personalized 3D printed braces system, today announced it raised an $80 million Series D ro

Google
Aug 2nd, 2023
LightForce Orthodontics Secures $80 Million Series D Funding Led

LightForce Orthodontics secures $80 million Series D funding led.

PIM International
Nov 18th, 2021
Klein invests into LightForce Orthodontics in $50M

LightForce Orthodontics, Cambridge, Massachusetts, USA, has closed its Series C funding round with a $50 million investment from new investor Klein... » Digital Metal, part of Sweden’s Höganäs Group, has launched the DMS-LNX 1.0 Control Panel Interface.

Helen + Gertrude
Jun 24th, 2021
Lightforceortho recognized as winner at 2021 Awards Show

Helen & Gertrude is proud its partnership with LightForce Orthodontics was recognized as a winner in the 2021 Awards Show and are honored to share this accomplishment.

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