27,782 Results for

Jobs in O Fallon, MO

Jobs

Sr Staff Frontend Software Engineer, AI Hub Qualcomm

Santa Clara, CA

$208,800–$313,200 / year

Bachelor's degree in Computer Science, Engineering, Information Systems, or related field and 6+ years of Hardware Engineering, Software Engineering, Systems Engineering, or related work experience. Master's degree in Computer Science, Engineering, Information Systems, or related field and 5+ years of Hardware Engineering, Software Engineering, Systems Engineering, or related work experience.

2 days ago

Sr. Software Engineer Visa

Foster City, CA

$112,100–$204,000 / year

Visa is a world leader in payments technology, facilitating transactions between consumers, merchants, financial institutions and government entities across more than 200 countries and territories, dedicated to uplifting everyone, everywhere by being the best way to pay and be paid. Process Improvement: Continuously improve technology stacks, development processes, and methodologies to enhance productivity, quality, and time to market, including responsible use of AI-assisted engineering tools.

14 days ago

Lead Cybersecurity Engineer Visa

Foster City, CA

$200,000–$320,000 / year

Visa’s Cyber Security team is seeking a Cloud Security Architecture with an automation-first mindset to design, build, and operate large‑scale, cloud‑native and AI‑driven security platforms that protect Visa’s global brand, networks, products, and data. The ideal candidate is a strong cloud security engineer and problem solver with deep experience in Python‑based services, cloud security engineering, API‑driven architectures, and automation, and who is excited to apply GenAI and autonomous agent technologies to modern security challenges.

8 days ago

Staff Software Engineer, Crypto Program Visa

Foster City, CA

$146,200–$233,700 / year

Visa is a world leader in payments technology, facilitating transactions between consumers, merchants, financial institutions and government entities across more than 200 countries and territories, dedicated to uplifting everyone, everywhere by being the best way to pay and be paid. As a Visa Software Engineer, you will be an integral part of a multi-functional development team inventing, designing, building, and testing software products that reach a truly global customer base.

30+ days ago

Simulation Engineer CYNET SYSTEMS

San Jose, CA

$50–$55 / hour
Temporary
Contractor
Part time
Quick Apply

Develop complex simulation models using SimPy, AnyLogic, or FlexSim to represent real-world operational processes, such as warehousing, logistics networks, and manufacturing lines, per the design and specifications provided by our client's SME's. Apply Operations Research techniques, including mixed integer programming, heuristics, scheduling, graph optimization, and queueing theory, within simulation environments to identify global optima versus local improvements.

17 days ago

Software Engineer Visa

Foster City, CA

$86,500–$158,100 / year

Visa is a world leader in payments technology, facilitating transactions between consumers, merchants, financial institutions and government entities across more than 200 countries and territories, dedicated to uplifting everyone, everywhere by being the best way to pay and be paid. You will be tasked to quickly grasp and evaluate new ideas and technologies from both internal and external sources and match them appropriately with emerging technology and business opportunities, building a culture of innovation and a drive for excellence.

Today

Cyber Security Engineer - Sr. Consultant level Visa

Foster City, CA

$180,600–$289,300 / year

The ideal candidate is a strong security engineer and problem solver with deep experience in Python‑based services, cloud security engineering, API‑driven architectures, and automation, and who is excited to apply GenAI and autonomous agent technologies to modern security challenges. Visa’s Cyber Security team is seeking a Cyber Security Engineer to design, build, and operate large‑scale, cloud‑native and AI‑driven security platforms that protect Visa’s global brand, networks, products, and data.

8 days ago

Physcial Design Engineer Arrow Electronics, Inc.

San Jose, CA

Contribute to the refinement of other implementation and physical design methodologies, encompassing synthesis, place and route (PnR), electromigration and IR (EMIR), power delivery network (PDN), and logical equivalence checking (LEC). Along with Arrow’s $38B in revenues, 22,000 employees, and 345 locations serving over 80 countries, eInfochips is primed to accelerate connected products innovation for 150,000+ global clients.

2 days ago

Physical Design Engineer II (IC) Arrow Electronics, Inc.

San Jose, CA

$87,400–$165,000 / year

30+ days ago

Chief SW Engineer Visa

Foster City, CA

$230,500–$369,400 / year

This role will be responsible for building the engineering system — platforms, patterns, evals, safety controls, reliability, cost, and developer experience — so business domains can adopt AI at speed with highest attention to security, compliance, and production discipline. Visa is a world leader in payments technology, facilitating transactions between consumers, merchants, financial institutions and government entities across more than 200 countries and territories, dedicated to uplifting everyone, everywhere by being the best way to pay and be paid.

6 days ago

SW Engineer - Cyber (does not qualify for immigration support) Visa

Foster City, CA

$112,400–$174,500 / year

Join our dynamic Visa Cybersecurity – Product Security Engineering team, a key component of Visa's Technology organization, where you will play a crucial role in securing and innovating Visa's products and services. Visa is a world leader in payments technology, facilitating transactions between consumers, merchants, financial institutions and government entities across more than 200 countries and territories, dedicated to uplifting everyone, everywhere by being the best way to pay and be paid.

5 days ago

Sr. Manager, Software Engineer (Team Lead) Visa

Foster City, CA

$192,100–$307,800 / year

Manager participates in design reviews, providing input on requirements, product designs, schedules, and potential issues, and works across the team to ensure productivity, predictability, and delivery of high-quality results. 3+ years of direct people-management experience preferred; candidates who have led teams through technical influence, matrix leadership, or technical leadership without direct authority will also be considered.

1 day ago

Staff SW Engineer Visa

Foster City, CA

$146,200–$233,700 / year

Staff Engineers work withmodern tools and platforms (including AI-assisted development, cloud-native services, and automation frameworks) todeliver secure, scalable, and high-quality technology solutions that create measurable business impact in the fintechsector. In this role, engineers spend approximately 50–65% of their time in hands-on technical work — coding, architecting, prototyping, and reviewing — while dedicating the remainder totechnical leadership, cross-functional alignment, and engineering excellence initiatives.

5 days ago

Senior Akamai CDN Engineer CYNET SYSTEMS

San Jose, CA

$74–$78 / hour
Temporary
Contractor
Part time
Quick Apply

The role supports high-traffic public websites, APIs, and software downloads, with a strong focus on Akamai Property Manager, edge caching, Bot Manager, App & API Protector, NetStorage, web performance, and production reliability. We deliver agile, scalable talent solutions across IT, engineering, life sciences, clinical, and professional staffing, powered by a high-performing recruitment engine operating across North America and Asia.

17 days ago

Lead Software Engineer Java, Platform Engineering Visa

Foster City, CA

$192,300–$307,600 / year

Visa is a world leader in payments technology, facilitating transactions between consumers, merchants, financial institutions and government entities across more than 200 countries and territories, dedicated to uplifting everyone, everywhere by being the best way to pay and be paid. Essential Functions Provide deep technical leadership within Shared Services Product Development, with a strong understanding of how shared platforms enable downstream product innovation.

8 days ago

Software Development Engineer, AI/ML, AWS Neuron, Model Inference Annapurna Labs (U.S.) Inc.

Cupertino, CA

The Annapurna Labs team at Amazon Web Services (AWS) builds AWS Neuron, the software development kit used to accelerate deep learning and GenAI workloads on Amazon’s custom machine learning accelerators, Inferentia and Trainium. This comprehensive toolkit includes an ML compiler, runtime, and application framework that seamlessly integrates with popular ML frameworks like PyTorch and JAX enabling unparalleled ML inference and training performance.

30+ days ago

Senior Software Engineer - Full Stack Visa

Foster City, CA

$123,000–$190,900 / year

In this role, engineers spend approximately 60–75% of their time coding, working hands-on with code, data, and modern tools (including AI-assisted development, cloud services, and automation frameworks) to deliver secure, scalable, and high-quality technology solutions that drive business outcomes in the fintech sector. Visa is a world leader in payments technology, facilitating transactions between consumers, merchants, financial institutions and government entities across more than 200 countries and territories, dedicated to uplifting everyone, everywhere by being the best way to pay and be paid.

6 days ago

Software Development Engineer, Annapurna Labs Annapurna Labs (U.S.) Inc.

Cupertino, CA

ENA Express is a next-generation EC2 networking feature that leverages the Scalable Reliable Datagram (SRD) protocol — developed by AWS — to deliver industry-leading networking performance: dramatically lower tail latency, higher bandwidth utilization, and consistent packet delivery at scale. - Experience in Linux and Networking protocols, or experience in Network protocols like DNS/DHCP/TCP and experience that includes strong analytical skills, attention to detail, and effective communication abilities.

30+ days ago

Senior Battery Electrical Simulation Engineer Kforce Inc.

Cupertino, CA

$60–$65

This individual will play a critical role in expanding the organization's simulation capabilities and serve as a subject matter expert on electrical modeling of batteries, chargers, power systems, and related electronic components. The ideal candidate will possess deep simulation expertise, strong academic credentials, and extensive experience translating physical battery and electronic system behavior into high-fidelity simulation models.

10 days ago

Security Engineer III Pinnacle Technical Resources

Cupertino,, California

$80–$90 / hour
Contractor

The specific compensation for this position will be determined by several factors, including the scope, complexity, and location of the role, as well as the cost of labor in the market; the skills, education, training, credentials, and experience of the candidate; and other conditions of employment. Successfully placed or hired candidates would only be asked for banking details after accepting an offer from us during our official onboarding processes as part of payroll setup.

30+ days ago

See More Jobs

Browse Jobs Near O Fallon, MO

Get noticed by top employers!

Upload your resume to let employers know you're open to job opportunities. Plus, receive relevant job recommendations in your inbox.

Create A Free Account

Jobs in O Fallon, MO

Sr Staff Frontend Software Engineer, AI Hub Qualcomm

Sr. Software Engineer Visa

Lead Cybersecurity Engineer Visa

Staff Software Engineer, Crypto Program Visa

Simulation Engineer CYNET SYSTEMS

Software Engineer Visa

Cyber Security Engineer - Sr. Consultant level Visa

Physcial Design Engineer Arrow Electronics, Inc.

Physical Design Engineer II (IC) Arrow Electronics, Inc.

Chief SW Engineer Visa

SW Engineer - Cyber (does not qualify for immigration support) Visa

Sr. Manager, Software Engineer (Team Lead) Visa

Staff SW Engineer Visa

Senior Akamai CDN Engineer CYNET SYSTEMS

Lead Software Engineer Java, Platform Engineering Visa

Software Development Engineer, AI/ML, AWS Neuron, Model Inference Annapurna Labs (U.S.) Inc.

Senior Software Engineer - Full Stack Visa

Software Development Engineer, Annapurna Labs Annapurna Labs (U.S.) Inc.

Senior Battery Electrical Simulation Engineer Kforce Inc.

Security Engineer III Pinnacle Technical Resources

Similar Job Searches

See More Jobs