1,772,011open jobs
103,500companies
265,560added this week
Browse all
Salary
≈ $95k – $194k per year (Estimated)
Location
In office (Watertown)
Visa
H-1B filings in 12 months: 7 · for this role: 2
Employment
Full-Time

Confirmed on the employer's own hiring board on Oct 16, 2026. First seen by Alion on Sep 30, 2026. Flexcompute scores A on the Alion truth index.

Overview
Company
Impact
Profile match
Flexcompute is a computer-aided engineering (CAE) and deep-tech simulation software company. Headquartered in Watertown, Massachusetts (in the Greater Boston area), and spun out by researchers from MIT and Stanford, the company develops high-performance physics simulation engines that accelerate hardware R&D across aerospace, defense, automotive, photonics, and semiconductor sectors.
Backed by Coatue

Flexcompute is a cutting-edge technology startup that specializes in ultra-fast simulation technology. Our products are utilized by companies in designing and optimizing technology products, with applications ranging from designing airplanes and cars to wind turbines and quantum computing chips. Our customer base includes both household names and startups in emerging industries. Our company was founded by world-renowned leaders in simulation technology from Stanford University and MIT. Backed by top VC firms, we are poised to disrupt the billion-dollar engineering simulation industry with our fast-growing trajectory

Job Summary:

Flexcompute is seeking an experienced software developer to contribute to a modern Computational Fluid Dynamics simulation software designed for multi-node CPUs and GPUs. The successful candidate will have a critical role in designing and implementing cutting-edge algorithms with an emphasis on speed, robustness, accuracy, and scalability. This position offers a unique opportunity to explore state-of-the-art CFD and computational geometry algorithms in a production environment. The candidate will gain experience working with highly experienced professionals and be an integral part of the product development, release, maintenance, and support phases. Over time, the strong collaborative nature of this role offers exposure to Flexcompute’s sophisticated multi-physics simulation and design optimization technologies.

What You Will Do:

  • Independently implement, test, and document new solver and meshing features
  • Profile and optimize feature implementation to improve speed and scalability on CPUs/GPUs
  • Contribute to a clean and maintainable API for various functionalities
  • Contribute to general source code maintenance and other relevant software development activities (bug fixes, support, etc)
  • Collaborate with teams developing the user-interface and scientific visualization tools/technologies
  • Collaborate with Product Management, QA, and Documentation teams to accomplish product milestones in a timely manner
  • Follow sound software engineering practices. The code we write today will underpin our platform simulation products for years to come - it needs to be maintainable, extensible and robust
  • Make user experience a priority. We strive to make the complexity inherent in fluid simulations manageable by way of intuitive controls and straightforward workflows
  • Deliver robust and high-performance simulations for industrial applications that involve management of large amounts of data

Requirements

Basics:

  • Strong background in Fluid Mechanics, Structural Mechanics, Aeroacoustics, Conjugate Heat Transfer, or adjacent fields
  • Knowledge of numerical methods for solving discretized Navier Stokes equations for Incompressible or Compressible Flows
  • Basics of computational geometry and meshing requirements for CFD simulations
  • Proven experience in and contributions to complex CFD solvers
  • C++ for scientific computing and Python (or similar) for scripting
  • Master degree or PhD in an applicable technical field with 0-3 years of industry experience
  • Familiar with version control systems such as git and the Linux command line

Preferred:

  • Industry experience with implementation and testing of new features in commercial CFD solvers
  • Prior experience in working collaboratively in a medium sized distributed development team
  • PhD in Computational Science and Engineering, Mechanical Engineering or Aerospace Engineering
  • Expertise in one or more of the following topics:
    • Linear solvers and convergence acceleration of CFD solvers (Multigrid algorithms, etc)
    • Immersed Boundary, Overset, Adaptive Mesh Refinement methods
    • Turbulence modeling and wall-functions (RANS, hybrid RANS-LES)
    • Multi-physics simulations: including fluid-structure interaction and conjugate heat transfer
    • Surface and volumetric meshing for CFD
    • Development of scalable, parallel CFD solvers using MPI, OpenMP, or CUDA

How You Will Be Successful:

We welcome you to apply even if you don’t match every requirement posted for this role. No one candidate will be a 100% perfect match to our description, so if you are passionate about working on the next evolution in simulation software and have similar experience to what we are looking for, we encourage you to apply. Diverse backgrounds and experiences promote innovation, and our goal is to build a team that encompasses a variety of backgrounds, experiences, and skills.

Benefits

  • Competitive compensation with equity of a fast-growing startup.
  • Medical, dental, and vision health insurance.
  • 401(k) Contribution.
  • Gym allowance.
  • Friendly, thoughtful, and intelligent coworkers.

Join Us

As our market and products grow, we are rapidly expanding and searching for partners who are eager to grow in a dynamic environment, possess an entrepreneurial spirit, and can scale our team. Flexcompute is dedicated to providing equal employment opportunities. We firmly believe that talent from diverse backgrounds can bring our company a rich and varied perspective. We warmly welcome candidates from all backgrounds to join us on this passionate and challenging journey, together facing the most compelling challenges in engineering computation.

Join Flexcompute, where your expertise in advanced computing will contribute to accelerating innovation in various fields for the next industrial renaissance.

Flexcompute is dedicated to promoting diversity, equity, and inclusion in the workplace. We are an equal opportunity employer that recognizes the value of diverse perspectives in achieving our mission. We encourage candidates from all backgrounds to apply.

Free account
Stop reading job ads. Get the ones that fit.
One free account turns this page into a shortlist built around your stack, your level and your pay.
Match on every job. Stack, seniority, pay and location, scored against your profile.
1,772,011 open roles. Read straight off company career pages, refreshed every day.
Unlimited applications. Every one you send is tracked in one place, on-site or on a company board.
3 tailored CVs a month. Rewritten for the exact job you are applying to. Included free.
Create a free account Continue with Google
Free forever. No card. Under a minute.

Your match

How well do you fit this role?
Two answers are enough for a real match. No account needed.
Check my fit
Answers stay in this browser until you create an account.

Recommended for you based on this role

Backend
Similar stack
Same company
Watertown
$172k – $253k per year • In office • Secret • Full-Time • 3+ years exp • El Segundo
Python
Java
SQL
DevOps
GitLab
Linux
Apache HTTP Server
Management
Confluence
Agile
Apply
$46k – $86k per year • In office • Internship • 2+ years exp • Bachelor's Degree • United States
JavaScript
TypeScript
C++
Node JS
Frontend
Angular
DevOps
Linux
Windows
Apply
$46k – $86k per year • In office • Internship • Bachelor's Degree • United States
Java
PHP
C#
Management
Microsoft Office
Apply
$46k – $86k per year • Hybrid • Internship • Master's Degree • Niles
Python
JavaScript
Rust
Kotlin
C++
Objective-C
AI/ML
Computer Vision
Machine Learning
DevOps
Linux
Apply
Software Engineer II 4 hours ago
≈ $101k – $196k per year (Estimated) • Remote (United States) • 4+ years exp
Python
SQL
C#
C#
Entity Framework Core
Databases
PostgreSQL
RabbitMQ
Amazon DocumentDB
AI/ML
Copilot
Cursor
Claude Code
AI Agents
DevOps
AWS
Docker
Kubernetes
Apply
$253k – $380k per year • Equity • Hybrid • Full-Time • 10+ years exp • PhD • Seattle • Reston • San Jose
Python
Go
Java
C++
Databases
ClickHouse
Apache Kafka
Trino
StarRocks
AI/ML
Spark
Flink
DevOps
OpenTelemetry
Kubernetes
Cybersecurity
Threat Modeling
Apply
≈ $58k – $110k per year (Estimated) • In office • Contractor • Karlsruhe
Python
SQL
Python
pySpark
Databases
Databricks
AI/ML
Spark
Scikit-learn
NumPy
DevOps
Azure
Analytics
Power BI
Apply
$83k – $113k per year • In office • Top Secret • Full-Time • Bachelor's Degree • Richardson
Java
C++
C++
OpenGL
DevOps
Linux
Management
Agile
Apply
IAM Specialist 3 days ago
≈ $57k – $94k per year (Estimated) • Hybrid • 5+ years exp • Courbevoie
Python
PowerShell
AI/ML
Copilot
DevOps
AWS
IAM
DNS
Cybersecurity
Microsoft Entra ID
Active Directory
LDAP
Apply
$56k per year • In office • Full-Time • 5+ years exp • Master's Degree • Rome • Milan
Python
SQL
Julia
Management
Microsoft Office
Apply
≈ $137k – $250k per year (Estimated) • In office • Full-Time • Watertown
Python
Java
C++
DevOps
Terraform
Ansible
SLURM
CI/CD
AWS
Docker
Kubernetes
Configuration Management
IAM
HPC
Linux
Apply
≈ $126k – $265k per year (Estimated) • In office • 2+ years exp • Watertown
Python
AI/ML
Ray
DevOps
Terraform
SLURM
CI/CD
AWS
Docker
Kubernetes
HPC
Linux
Apply
≈ $126k – $265k per year (Estimated) • In office • Watertown
DevOps
Terraform
CI/CD
AWS
IAM
HPC
Cybersecurity
NIST 800-53
NIST 800-171
Apply
In office • Watertown
Management
Google Sheets
Stripe
QuickBooks
Marketing
HubSpot
Apply
≈ $86k – $221k per year (Estimated) • In office • Full-Time • Watertown
DevOps
HPC
Apply
$150k – $200k per year • In office • Full-Time • Bachelor's Degree • Watertown
Python
SQL
Apply
≈ $58k – $125k per year (Estimated) • In office • Full-Time • 5+ years exp • Bachelor's Degree • Watertown
Apply
In office • Watertown
Apply
$230k – $281k per year • In office • 10+ years exp • Bachelor's Degree • Watertown
DevOps
GCP
Cybersecurity
CAPA
Apply
$52k – $55k per year • Hybrid • Full-Time • 2+ years exp • Associate's Degree • Watertown
Management
SharePoint
Microsoft Office
Apply
See all jobs
This is one of many
1,772,011 more open roles from verified company boards, updated every day.