Explore 3 senior python developer jobs from 3 hiring companies in Fairfield, TX, US. Filter by remote, salary, experience, and company, then open any listing to apply.

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Senior Python Developer Jobs

Toyota

Verizon

Onsite

Hybrid

OverviewWho we are<div>Collaborative. Respectful. A place to dream and do. These are just a few words that describe what life is like at Toyota. As one of the world’s most admired brands, Toyota is growing and leading the future of mobility through innovative, high-quality solutions designed to enhance lives and delight those we serve. We’re looking for talented team members who want to Dream. Do. Grow. with us.An important part of the Toyota family is Toyota Financial Services (TFS), the finance and insurance brand for Toyota and Lexus in North America. While TFS is a separate business entity, it is an essential part of this world-changing company- delivering on Toyota&#39;s vision to move people beyond what&#39;s possible. At TFS, you will help create best-in-class customer experience in an innovative, collaborative environment.</div>To save time applying, Toyota does not offer sponsorship of job applicants for employment-based visas or any other work authorization for this position currently.Who We&#39;re Looking ForToyota Financial Services (TFS) Technology team is looking for a highly motivated person to fill the role as a Lead Cyber Security Engineer.Your primary responsibility is to architect, deploy, optimize, and maintain the organization&#39;s Security Information and Event Management (SIEM) and Security Orchestration, Automation, and Response (SOAR) platforms. Operating under the Information Security mandate, you will lead engineering efforts to ensure comprehensive log ingestion, detection fidelity, platform health, and automation capabilities that empower the Security Operations Center (SOC) and broader cyber defense teams.We&#39;re looking for someone who thrives in a high-growth environment and brings deep technical expertise alongside strong engineering discipline, enabling you to build scalable, resilient security infrastructure that strengthens Toyota&#39;s detection and response posture.What You&#39;ll Be Doing<ul><li>SIEM Engineering &amp; Platform Health:</li></ul>Lead the design, configuration, and ongoing maintenance of complex SIEM environments, including onboarding and managing diverse data sources, ensuring proper log parsing, normalization, and enrichment. Proactively monitor platform health, troubleshoot ingestion failures, and optimize storage and performance to maintain operational excellence.<ul><li>SOAR Development &amp; Automation:</li></ul>Design, build, and maintain SOAR playbooks and automated workflows that streamline alert triage, enrichment, and response actions. Continuously identify opportunities to reduce manual effort and accelerate mean time to detect (MTTD) and mean time to respond (MTTR) through intelligent automation.<ul><li>Agent Deployment &amp; Endpoint Telemetry:</li></ul>Lead the deployment, configuration, and lifecycle management of security agents across on-prem, cloud, and hybrid endpoint environments. Ensure consistent agent coverage, policy enforcement, and telemetry collection to maximize detection visibility across the enterprise.<ul><li>Detection Engineering &amp; Data Source Management:</li></ul>Develop and tune detection rules, correlation logic, and alerting thresholds within the SIEM to improve signal-to-noise ratio and detection accuracy. Partner with threat intelligence and SOC teams to translate emerging threats into actionable detection content. Manage the full lifecycle of data source integrations, including scoping, onboarding, validation, and ongoing health monitoring.<ul><li>Scripting &amp; Automation Development:</li></ul>Leverage scripting languages such as Python and PowerShell to build custom tooling, automate repetitive engineering tasks, develop API integrations, and enhance platform capabilities beyond out-of-the-box functionality.<ul><li>Process Development &amp; Standardization:</li></ul>Assist in the development and maintenance of standard operating procedures (SOPs), engineering runbooks, and documentation that streamline data source onboarding, platform maintenance, and incident support workflows. Continuously refine processes to improve efficiency and consistency.Lead Cyber Security EngineerTo save time applying, Toyota does not offer sponsorship of job applicants for employment-based visas or any other work authorization for this position currently.What You Bring<ul><li>5&#43; years of experience in cyber security engineering, with hands-on expertise in SIEM administration and engineering, SOAR platform development, log management, data source onboarding, and security agent deployment and lifecycle management.</li><li>Subject matter expertise in one or more SIEM/SOAR platforms (e.g., Splunk, Microsoft Sentinel, Chronicle, Elastic, Palo Alto XSIAM/XSOAR, Phantom, Swimlane, etc.)</li><li>Strong understanding of log source types, parsing methodologies, data normalization techniques, and common log formats (e.g., Syslog, CEF, JSON, XML, Windows Event Logs).</li><li>Proficiency in scripting languages, particularly Python and PowerShell, with demonstrated ability to build automation, custom integrations, and engineering tooling.</li><li>Excellent communication skills with the ability to collaborate with and influence stakeholders at all levels, including SOC analysts, infrastructure teams, and leadership.​</li></ul>Added Bonus If You Have<ul><li>A bachelor&#39;s degree in a relevant field (e.g., Cybersecurity, Computer Science, Engineering, Information Technology) or equivalent work experience.</li><li>Experience in a regulated industry (e.g., finance, healthcare, government).</li><li>Proficiency in additional query and scripting languages (e.g., CQL, SQL, KQL, SPL, EQL, Yara, Bash).</li><li>Experience with security agent platforms such as CrowdStrike Falcon, or Halcyon.</li><li>Proficiency in AWS and Azure cloud environments, with a strong understanding of cloud-native logging, data flows, and access management.</li><li>Experience building and maintaining API-based integrations between security tools and platforms.</li><li>Familiarity with CI/CD pipelines and infrastructure-as-code practices applied to security tooling.</li><li>AWS: AWS Certified Security – Specialty, AWS Certified Solutions Architect – Associate/Professional, AWS Certified SysOps Administrator – Associate</li><li>Azure: Microsoft Certified: Security Operations Analyst Associate (SC-200), Microsoft Certified: Azure Security Engineer Associate (AZ-500), Microsoft Certified: Azure Administrator Associate (AZ-104)</li></ul><ul><li>Cribl: Cribl Certified Observability Engineer (CCOE), Cribl Certified Admin</li><li>CrowdStrike: CrowdStrike Certified Falcon Administrator (CCFA), CrowdStrike Certified Falcon Responder (CCFR), CrowdStrike Certified Falcon Hunter (CCFH)</li></ul>What We&#39;ll BringDuring your interview process, our team can fill you in on all the details of our industry-leading benefits and career development opportunities. A few highlights include:<ul><li>A work environment built on teamwork, flexibility, and respect.</li><li>Professional growth and development programs to help advance your career, including tuition reimbursement.</li><li>Team Member Vehicle Purchase Discount.</li><li>Toyota Team Member Lease Vehicle Program (if applicable).</li><li>Comprehensive health care and wellness plans for your entire family.</li><li>Toyota 401(k) Savings Plan with a company match, plus an annual retirement contribution from Toyota regardless of your own contributions.</li><li>Paid holidays and paid time off.</li><li>Referral services for prenatal services, adoption, childcare, schools, and more.</li><li>Tax advantaged Accounts (Health Savings Account, Health Care FSA, Dependent Care FSA).</li><li>Relocation assistance (if applicable).</li></ul>Belonging at ToyotaOur success begins and ends with our people. We embrace all perspectives and value unique human experiences. Respect for all is our North Star. Toyota is proud to have 10&#43; different Business Partnering Groups across 100 different North American chapter locations that support team members’ efforts to dream, do and grow without questioning that they belong.Applicants for our positions are considered without regard to race, ethnicity, national origin, sex, sexual orientation, gender identity or expression, age, disability, religion, military or veteran status, or any other characteristics protected by law.Have a question, need assistance with your application or do you require any special accommodations? Please send an email to <a href="mailto:talent.acquisition&#64;toyota.com" target="_blank">talent.acquisition&#64;toyota.com</a>.

Security Engineer, Lead

Security Engineer

5+ years in cyber security engineering; SIEM/SOAR; log management; data source onboarding; security agent deployment; strong communication.

<h2>When you join Verizon</h2>You want more out of a career. A place to share your ideas freely — even if they’re daring or different. Where the true you can learn, grow, and thrive. At Verizon, we power and empower how people live, work and play by connecting them to what brings them joy. We do what we love — driving innovation, creativity, and impact in the world. Our V Team is a community of people who anticipate, lead, and believe that listening is where learning begins. In crisis and in celebration, we come together — lifting our communities and building trust in how we show up, everywhere &amp; always. Want in? Join the #VTeamLife.<h2>What you’ll be doing...</h2>As a Senior Manager of AI Value team, you will be responsible for defining and driving measurable business values across Verizon Business Marketing for AI initiatives. You’ll work closely with the AI Product owners and stakeholders to ensure AI investments translate into tangible financial and operational outcomes such as increased ARPU/ARPA, reduced churn and positive ROI. This role sits at the intersection of business, data science, technology and finance with success measured by ability to turn frontier AI into business value. You will be expected to:<ul><li>Build and shape the value creation function by developing repeatable frameworks, ROI models, value narratives and collateral to help product owners and stakeholders understand and measure the impact of AI adoption and integration.</li><li>Drive measurable revenue growth and marketing efficiency through AI use cases across VBG marketing.</li><li>Partner with product owners to drive initiatives from ideation, business case to measurable impact.</li><li>Ensure delivery against defined value targets such as: financial impact, churn reduction, increase in ARPU/ARPA, AI adoption rate, Time to value of AI initiatives, and accuracy and performance of AI models/agents.</li><li>Create Business Cases and report on revenue lift, cost savings, ROI and operational efficiency. </li><li>Build and maintain standardized ROI, TCO and value modeling tools.</li><li>Collaborate with cross-functional teams and product owners to translate business problems into AI-driven solutions and ensure alignment.</li><li>Partner with product owners to champion adoption of AI tools and insights, drive process improvements and best practices to improve engagement and scale AI use cases.</li><li>Establish governance for responsible AI and value measures.</li></ul><h2>What we’re looking for...</h2>You’re great at translating between business and technical teams, bringing people together from different functions to work towards a common goal and possess business and marketing acumen with strong financial orientation and execute data-driven decisions.You’ll need to have:<ul><li>Bachelor’s degree or four or more years of work experience.</li><li>Six or more years of relevant experience required, demonstrated through one or a combination of work and/or military experience, or specialized training.</li><li>Six or more years of relevant experience in consulting, marketing, analytics or digital transformation.</li><li>Business Case development and tracking.</li><li>Experience developing KPIs to measure program success.</li><li>Experience managing cross-functional programs.</li><li>Presentation experience up to the SVP level.</li><li>Stakeholder management experience. </li><li>Experience translating between business and technical teams. </li><li>Willingness to travel up to 10%.</li></ul>Even better if you have one or more of the following:<ul><li>Experience working with AI/ML teams or products.</li><li>Familiarity with data tools (SQL, Python, BI tools).</li><li>Financial modeling experience.</li><li>Experience in B2B telecom.</li><li>MBA or advanced degree.</li><li>Strong communication.</li></ul><h2></h2>If Verizon and this role sound like a fit for you, we encourage you to apply even if you don’t meet every “even better” qualification listed above.<div><div><div><div><div><div><div><h2>Where you’ll be working</h2></div></div></div></div></div></div></div>In this hybrid role, you'll have a defined work location that includes working from home and a minimum of three days per week in the office, which will be set by your manager. Employees are responsible for maintaining compliance with hybrid work policies.<h2>Scheduled Weekly Hours</h2>40<h2>Equal Employment Opportunity </h2>Verizon is an equal opportunity employer. We evaluate qualified applicants without regard to veteran status, disability or other legally protected characteristics.<h2>Benefits and Compensation</h2>Our benefits are designed to help you move forward in your career, and in areas of your life outside of Verizon. From health and wellness benefit options including: medical, dental, vision, short and long term disability, basic life insurance, supplemental life insurance, AD&amp;D insurance, identity theft protection, pet insurance and group home &amp; auto insurance. We also offer a matched 401(k) savings plan, up to 8 company paid holidays per year and up to 6 personal days per year, paid parental leave, adoption assistance and tuition assistance, plus other incentives, we’ve got you covered with our award-winning total rewards package. Depending on the role, employees have the opportunity to receive compensation in the form of premium pay such as overtime, shift differential, holiday pay, allowances, etc. Newly hired employees receive up to 15 days of vacation per year, which grows with additional service. For part-timers, your coverage will vary as you may be eligible for some of these benefits depending on your individual circumstances.The salary will vary depending on your location and confirmed job-related skills and experience. This is an incentive based position with the potential to earn more. For part-time roles, your compensation will be adjusted to reflect your hours.The annual salary range for the location(s) listed on this job requisition based on a full-time schedule is: $98,500.00 - $188,000.00.The annual salary range for the New York location(s) listed on this job requisition based on a full-time schedule is: $108,000.00 - $188,000.00.

AI Value Program Senior Manager

AI Value Program Manager

Bachelor’s degree or 4+ years; 6+ years in consulting/marketing/analytics; business case development; KPI experience; cross-functional program management; travel up to 10%.

Date Posted:2026-04-20Country:United States of AmericaLocation:US-TX-MCKINNEY-513WD ~ 2501 W University Dr ~ WING D BLDGPosition Role Type:OnsiteU.S. Citizen, U.S. Person, or Immigration Status Requirements: Active and transferable U.S. government issued security clearance is required prior to start date.​ U.S. citizenship is required, as only U.S. citizens are eligible for a security clearance​Security Clearance Type: DoD Clearance: SecretSecurity Clearance Status: Active and existing security clearance required on day 1At Raytheon, the foundation of everything we do is rooted in our values and a higher calling to help our nation and allies defend freedoms and deter aggression. We bring the strength of more than 100 years of experience and renowned engineering expertise to meet the needs of today’s mission and stay ahead of tomorrow’s threat. Our team solves tough, meaningful problems that create a safer, more secure world.The Integrated Solutions Modeling and Architecture Directorate (ISMA) performs customer focused operational analysis, simulation, mission planning and architecture development activities within Raytheon, an RTX company.  Supporting this mission are teams driving flexible integrated solutions crossing all product areas (sensors, effectors, command and control, logistics and operations), developing tools and methods to evaluate system level studies and visualization based on customer requirements. Raytheon’s Operations Modeling &amp; Analysis (West) is currently seeking a Principal Systems Engineer. Join this visible team and perform highly technical assignments, directly contributing to protecting our nation and our warfighters.  The Advanced Mission Analysis Section’s goals are to provide strong discipline-based Systems Engineering for Operational and Mission Analysis, System Architectural definition, and Advanced sensor performance to deliver overmatch capabilities for our multi-domain national defense customers through modeling, simulation, and analysis.   The team welcomes you to join our tradition of excellence through innovation and collaboration.This is an onsite role located in McKinney, TX.Responsibilities to Anticipate:<ul><li>Develop modeling and analyze solutions across programs, Captures and IRADs</li><li>Support Operations Research functions, including mission and campaign analysis.</li></ul><ul><li>Develop team expertise in Analysis methods, software development, and tools</li><li>Coordinate with Principal Investigators, IPTs, Program Chief Engineer, and Program Management as needed.</li><li>Develop capability delivery plans and lead team execution in an agile framework</li><li>You will provide guidance, direction, mentoring and influencing skills, and foster teamwork, interdependent execution, and growth for earlier in career Engineers.</li><li>Some travel may be required – anticipated 10% domestic</li></ul>Qualifications You Must Have:<ul><li>Typically requires a degree in Science, Technology, Engineering or Mathematics (STEM) and a minimum of 8 years of prior relevant experience.</li><li>Experience working in Linux Environments.</li><li>Experience using standard government developed tools including Advanced Framework for Simulation Integration Modeling (AFSIM), Suppressor, Brawler, and similar.</li><li>Active and transferable U.S. government issued Secret security clearance is required prior to start date. U.S. citizenship is required, as only U.S. citizens are eligible for a security clearance.</li></ul>Qualifications We Value: <ul><li>Understanding of military tactics, techniques, and procedures (TTPs) </li><li>Domain knowledge in Sensors (RADARS, EOIR, etc.), Network Communications, Weapons/Effects (Missiles, Projectiles), Command &amp; Control, and Resource Management is highly desirable. </li><li>Proficiency with scientific computing environments, models, and/or simulations such as the following: MATLAB, Simulink, Python, etc.</li><li>Experience with Military Operations Analysis</li><li>Ability to understand tactics as described by military experts and to represent their employment (verbally, graphically, and in simulations)</li><li>Strong technical writing and oral communication skills  </li><li>  Experience in Numerical Optimization Techniques, Analysis of Alternatives, or Design of Experiments </li></ul>What We Offer<ul><li>Our values drive our actions, behaviors, and performance with a vision for a safer, more connected world. At RTX we value: Safety, Trust, Respect, Accountability, Collaboration, and Innovation.</li></ul>Learn More &amp; Apply Now!Please consider the following role type definition as you apply for this role.<ul><li>Onsite: Employees who are working in Onsite roles will work primarily onsite. This includes all production and maintenance employees, as they are essential to the development of our products.</li></ul>Location: McKinney TX: <a href="https://careers.rtx.com/global/en/raytheon-north-texas-location" target="_blank">https://careers.rtx.com/global/en/raytheon-north-texas-location</a>As part of our commitment to maintaining a secure hiring process, candidates may be asked to attend select steps of the interview process in-person at one of our office locations, regardless of whether the role is designated as on-site, hybrid or remote.The salary range for this role is 107,500 USD - 204,500 USD. The salary range provided is a good faith estimate representative of all experience levels. RTX considers several factors when extending an offer, including but not limited to, the role, function and associated responsibilities, a candidate’s work experience, location, education/training, and key skills.Hired applicants may be eligible for benefits, including but not limited to, medical, dental, vision, life insurance, short-term disability, long-term disability, 401(k) match, flexible spending accounts, flexible work schedules, employee assistance program, Employee Scholar Program, parental leave, paid time off, and holidays. Specific benefits are dependent upon the specific business unit as well as whether or not the position is covered by a collective-bargaining agreement.Hired applicants may be eligible for annual short-term and/or long-term incentive compensation programs depending on the level of the position and whether or not it is covered by a collective-bargaining agreement. Payments under these annual programs are not guaranteed and are dependent upon a variety of factors including, but not limited to, individual performance, business unit performance, and/or the company’s performance.This role is a U.S.-based role. If the successful candidate resides in a U.S. territory, the appropriate pay structure and benefits will apply.RTX anticipates the application window closing approximately 40 days from the date the notice was posted. However, factors such as candidate flow and business necessity may require RTX to shorten or extend the application window.RTX is an Equal Opportunity Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, age, disability or veteran status, or any other applicable state or federal protected class. RTX provides affirmative action in employment for qualified Individuals with a Disability and Protected Veterans in compliance with Section 503 of the Rehabilitation Act and the Vietnam Era Veterans’ Readjustment Assistance Act. Privacy Policy and Terms:Click on this <a target="_blank" href="http://www.rtx.com/privacy/Job-Applicant-Privacy-Notice">link</a> to read the Policy and Terms

Principal Systems Engr Mission Analyst (Onsite)

Principal Systems Engineer - Mission Analyst

8+ years in STEM; Linux; AF SIM tools; DoD Secret security clearance; US citizenship.

Senior Python Developer Jobs in Fairfield, TX, US | HiringCafe: every job on earth

Senior Python Developer Jobs in Fairfield, TX, US

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