Jobs in the United States

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Added 1 min ago
Senior Systems Engineer
Summit Information Solutions, Inc.
Richmond, VA
We are looking for a Senior Systems Engineer join our team in Richmond, VA!
Added 14 mins ago
Senior MBSE Systems Engineer
Sabre Systems LLC
Patuxent River, MD
Sabre Systems is currently recruiting a Senior MBSE Systems Engineer for the Model-Based Systems Engineering Division to support the Heavy Lift Helicopter Program Office (PMA-261) at…
Added 14 mins ago
Senior MBSE Systems Engineer
Sabre Systems LLC
Patuxent River, MD
Sabre Systems is currently recruiting a Senior MBSE Systems Engineer for the Model-Based Systems Engineering Division to support the V-22 Joint Program Office (PMA-275) at Patuxent River…
Added 14 mins ago
Manufacturing & Quality Engineer (Journeyman)
Sabre Systems LLC
Patuxent River, MD
Sabre Systems is currently recruiting a Journeyman Manufacturing & Quality Engineer for the Manufacturing and Quality Engineering (M&QE) Division, in NAVAIR’s Systems Acquisition Group. The…
Added 14 mins ago
Senior MBSE Systems Engineer
Sabre Systems LLC
Patuxent River, MD
Sabre Systems is currently recruiting a Senior MBSE Systems Engineer for the Model-Based Systems Engineering Division to support the PMA-228 at Patuxent River Naval Air Station in Lexington…
Added 15 mins ago
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Waste Water Engineer
GPAC
Bangor, ME
- $80,000 to $100,000 USD / year
We are seeking a Water/Wastewater Engineer to join a growing, multi-disciplinary engineering consulting firm. This individual will contribute to the planning, design, and delivery of…
Added 16 mins ago
Senior AI Engineer, Banking Technology
Citibank, N.A.
United States
Citi’s Banking Technology organization is seeking a highly hands-on Senior AI Engineer to design, build, and deploy cutting‑edge AI solutions for Investment, Corporate, and Commercial…
Added 19 mins ago
Manager Information Technology 3
Northrop Grumman
Linthicum Heights, MD
Administration and optimization of systems and software engineering tools, including compilers, code analysis, requirements management, and related environments.
Added 19 mins ago
Sr Staff Cyber Systems Engineer
Northrop Grumman
Jessup, MD
Northrop Grumman Mission Systems Mission Defense Cyber Team has an opening for a senior systems engineer in the Cyber specialty discipline. As a senior Cybersecurity Systems Engineer (CSSE)…
Added 19 mins ago
Embedded Software Engineer II
Wabtec Corporation
Germantown, MD
…Video and Event Recorders, Network Management Devices, Braking Systems, and Train Control Equipment. In this role, the Senior Embedded Software Engineer will work with a cross-functional…
Added 19 mins ago
Senior Systems Engineer
CACI International
Fort Meade, MD
Join a team responsible for designing and delivering mission-critical systems that support national security objectives. As a Senior Systems Engineer, you will lead complex engineering…
Added 19 mins ago
DevOps Engineer (Hybrid) - 31013
Huntington Ingalls Industries
Fort Meade, MD
…development and deployment, with expertise in cloud-based services, software and systems engineering, cyber capabilities, and data science. Enlighten provides continued innovation and…
Added 19 mins ago
DevOps Engineer - $20K Sign On Bonus - 31011
Huntington Ingalls Industries
Fort Meade, MD
…development and deployment, with expertise in cloud-based services, software and systems engineering, cyber capabilities, and data science. Enlighten provides continued innovation and…
Added 19 mins ago
DevOps Engineer - $20K Sign On Bonus - 31012
Huntington Ingalls Industries
Fort Meade, MD
…development and deployment, with expertise in cloud-based services, software and systems engineering, cyber capabilities, and data science. Enlighten provides continued innovation and…
Added 19 mins ago
DevOps Engineer (Hybrid) - 31007
Huntington Ingalls Industries
Columbia, MD
…development and deployment, with expertise in cloud-based services, software and systems engineering, cyber capabilities, and data science. Enlighten provides continued innovation and…
Added 22 mins ago
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Senior Solutions Engineer, Digital Native and Mid-Market
True Talent Solutions Partners
Remote, United States
- $147,000 to $175,000 USD / year
- A computer science degree, prior software engineering experience, and strong technical fundamentals across programming languages and stacks.
Added 36 mins ago
Senior Software and System Architect
NVIDIA USA
Remote, United States
…- and amazing people. NVIDIA is looking for an experienced Senior Software and System Architect to join our Networking Software Architecture group. Nvidia's Architecture group consists of…
Added 45 mins ago
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Water/Wastewater Engineer
GPAC
Louisville, KY
- $70,000 to $180,000 USD / year
We are seeking a Water/Wastewater Engineer to join a growing, multi-disciplinary engineering consulting firm. This individual will contribute to the planning, design, and delivery of…
Added 45 mins ago
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Water/Wastewater Engineer
GPAC
Lexington, KY
- $70,000 to $180,000 USD / year
We are seeking a Water/Wastewater Engineer to join a growing, multi-disciplinary engineering consulting firm. This individual will contribute to the planning, design, and delivery of…
Added 45 mins ago
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Water/Wastewater Engineer
GPAC
Florence, KY
- $70,000 to $180,000 USD / year
We are seeking a Water/Wastewater Engineer to join a growing, multi-disciplinary engineering consulting firm. This individual will contribute to the planning, design, and delivery of…
Added 45 mins ago
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Water/Wastewater Engineer
GPAC
Covington, KY
- $70,000 to $180,000 USD / year
We are seeking a Water/Wastewater Engineer to join a growing, multi-disciplinary engineering consulting firm. This individual will contribute to the planning, design, and delivery of…
Added 45 mins ago
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Water/Wastewater Engineer
GPAC
Bowling Green, KY
- $70,000 to $180,000 USD / year
We are seeking a Water/Wastewater Engineer to join a growing, multi-disciplinary engineering consulting firm. This individual will contribute to the planning, design, and delivery of…
Added 45 mins ago
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Water/Wastewater Engineer
GPAC
Owensboro, KY
- $70,000 to $180,000 USD / year
We are seeking a Water/Wastewater Engineer to join a growing, multi-disciplinary engineering consulting firm. This individual will contribute to the planning, design, and delivery of…
Added 45 mins ago
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Water/Wastewater Engineer
GPAC
Paducah, KY
- $70,000 to $180,000 USD / year
We are seeking a Water/Wastewater Engineer to join a growing, multi-disciplinary engineering consulting firm. This individual will contribute to the planning, design, and delivery of…
Added 46 mins ago
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Water/Wastewater Engineer
GPAC
Georgetown, KY
- $70,000 to $180,000 USD / year
We are seeking a Water/Wastewater Engineer to join a growing, multi-disciplinary engineering consulting firm. This individual will contribute to the planning, design, and delivery of…

Flexcompute Inc.

Senior Backend Software Engineer

Madison, WI, United States

$1,200 a year fitness stipend.

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Job details

Pay: $1,200 a year fitness stipend.
Posting language: English
Posted: Nov 6, 2026

Original job description

Flexcompute is leading the transformation of engineering simulation with our revolutionary ultra-fast simulation technology. Our flagship products, including the industry-leading Computational Fluid Dynamics (CFD) software Flow360 and electromagnetic simulation software Tidy3D, are reshaping how simulations are conducted across diverse sectors. Founded by visionaries from Stanford and MIT and supported by top-tier venture capital firms, we are a rapidly growing team dedicated to breaking boundaries and challenging the norms of the multi-billion-dollar engineering simulation market. Role Overview We are looking for a Senior Backend Software Engineer to join our team in Madison, Wisconsin, and help us design and implement scalable solutions that meet the growing demands of our advanced EM simulation platform. Additionally, the candidate will help us enhance our data management, frontend-backend API unification, and cloud integration.

Key Responsibilities

Contribute to general software development efforts, such as API unification, simulation data management (e.g., caching, syncing, storage), and scripting improvements.
Collaborate with EM and infrastructure teams to implement simulation-specific solutions, including enhancements to back-end/scheduler integrations and Python front-end functionality.
Improve our task pipelines through an innovative design for a web API in a multi-physical simulation context.
Develop and maintain hybrid cloud compute and storage solutions, integrating on-premise HPC systems with modern cloud platforms.
Optimize and manage high-performance computing clusters equipped with high-speed interconnects

This is a senior seat. We keep the team small and senior on purpose, so you will own real pieces of the platform end to end, with little direction and direct access to the founders. This role is on-site at our Madison office. Working from the office is a requirement: our product and application engineers are based in Madison, and this hire works alongside them in person. It is not a remote or hybrid role.

Requirements

What you need

Strong backend engineering in at least one of Java, Python or C++. Deep in one is enough.
Real production cloud experience, AWS preferred.
Distributed systems you have operated in production, not only studied.
Direct ownership of a production backend service, from design through deployment and operation.
Fluent professional English, spoken and written.
Able to work on-site at our Madison, Wisconsin office. This is required.
Authorized to work in the United States.
A bachelor's degree in computer science, computer engineering or a closely related field.

What you can learn here We hire for depth, not checklists. You do not need all of the following on day one: Kubernetes and Docker, Terraform or Ansible, monitoring and observability tooling, Linux troubleshooting, networking and security practices, our simulation stack, and HPC (preferred, not mandatory). We look for people who have entered a new domain before, learned it fast and reached ownership. Bonus

Load balancing, autoscaling, and queues or streaming systems such as SQS, SNS or Kafka.
Experience integrating cloud platforms with HPC environments or large compute clusters.
Familiarity with job schedulers or batch systems, distributed compute frameworks, or large-scale data pipelines.
Experience supporting scientific computing or simulation platforms.
Knowledge of GPU infrastructure and resource scheduling.
Experience building developer platforms or internal infrastructure tooling.
A degree in computer science, computer engineering, mathematics, physics or a related field from a leading university. Hands-on production experience matters more than where you studied.

Innovative Mindset: Ability to learn quickly, adapt to new challenges, and innovate in a fast-paced startup environment. Example Projects

Architect and deploy infrastructure that runs distributed simulation workloads across cloud and on-premise compute
Design and implement scalable web APIs for simulation job orchestration and data access
Build CI/CD pipelines and infrastructure-as-code systems for reproducible deployments
Develop hybrid cloud solutions connecting on-prem HPC clusters with AWS compute and storage
Implement monitoring and observability systems to track simulation performance and reliability
Improve platform scalability to support growing user traffic and compute demand
Design secure service architectures, authentication, and licensing systems
Optimize infrastructure utilization across CPU and GPU resources

Join Us By joining Flexcompute, you'll be at the heart of a movement set to redefine the engineering simulation industry. You will play a key role in shaping the future, where our innovations in simulation technology pave the way for groundbreaking advancements. We are committed to fostering an innovative and collaborative culture where boundaries of possibility are re-imagined, driven by creativity, expertise, and a shared vision of transforming the technological landscape. How we hire No online assessment. Two to three technical conversations with the engineering team, then a final conversation with a co-founder. Bring your questions: the first conversation is not a pitch you sit through, you are welcome to send questions ahead, and technical disagreement is welcome.

Benefits

Competitive base salary, plus RSUs granted on day one and vesting over four years.
Medical, dental, and vision health insurance.
401(k) contribution.
Flexible paid time off, all US national holidays, and a company-wide year-end break.
$1,200 a year fitness stipend.
Company-paid trips to our Boston headquarters to work with the core team.
Learning sponsorship and an AI tools budget (we pay for Claude, Cursor and similar).
Friendly, thoughtful, and intelligent coworkers.

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More about this job

Skills

CFD
Data management
Software development
Python
Oracle Java
C++
AWS
Computer science
Computer engineering
Kubernetes
Docker
IBM Terraform
Ansible
Linux
Troubleshooting
Apache Kafka
Scheduling
CI/CD
Infrastructure as code

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