Explore 3 backend python developer jobs from 1 hiring companies in Montgomery City, MO, US. Filter by remote, salary, experience, and company, then open any listing to apply.

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Backend Python Developer

Fulton

Mexico

Wentzville

Columbia

Troy

O'Fallon

Lake Saint Louis

Washington

Warrenton

Jefferson City

Saint Peters

Dardenne Prairie

Union

Vandalia

Bowling Green

Wellsville

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Weldon Spring

Backend Python Developer Jobs

Mastercard

Onsite

Our PurposeMastercard powers economies and empowers people in 200&#43; countries and territories worldwide. Together with our customers, we’re helping build a sustainable economy where everyone can prosper. We support a wide range of digital payments choices, making transactions secure, simple, smart and accessible. Our technology and innovation, partnerships and networks combine to deliver a unique set of products and services that help people, businesses and governments realize their greatest potential.Title and Summary<h3></h3>Senior Software Engineer<h3></h3>Who is Mastercard? We work to connect and power an inclusive, digital economy that benefits everyone, everywhere, by making transactions safe, simple, smart, and accessible. Using secure data and networks, partnerships, and passion, our innovations and solutions help individuals, financial institutions, governments, and businesses realize their greatest potential. Our decency quotient, or DQ, drives our culture and everything we do inside and outside of our company. We cultivate a culture of inclusion for all employees that respect their individual strengths, views, and experiences. We believe that our differences enable us to be a better team – one that makes better decisions, drives innovation, and delivers better business results. About the Role This is an exciting opportunity for you to join Mastercard’s Transaction Switching program and improve authorization response time. Authorization sends billions of transactions among the integrated issuers, acquirers, and service providers worldwide. This position is on the performance engineering team in O’Fallon, Missouri and will partner with the development teams to performance test and tune each release. We are looking for software engineers that are passionate about creating high quality software while keeping performance top of mind. • Do you have a passion for solving complex technical challenges? • Do you love learning new technologies and apply it to your team? • Have you developed software before – preferably in C/C++? • Have you spent time in Linux environments? • Have you created scripts to automate manual tasks (i.e. shell script, TCL, Perl, Python)? • Do you understand throughput, latency, memory and CPU utilization? • Do you have experience and prefer working in an Agile environment? Role • Work closely with feature teams to identify risks and anticipate problems to ensure that each release does not negatively impact performance • Dig into the code to determine performance bottlenecks and make the improvement • Design, configure, automate, and execute performance tests • Improve the performance environment with your own code, automation, and onboarding of external tools (i.e. Dynatrace and Splunk) • Work collaboratively and effectively in a fast-paced environment All About You • Proven experience developing backend applications in a Linux environment with C and/or C++ programming language(s) • Deep knowledge and experience of computer architecture with throughput, latency, memory and CPU utilization for performance engineering to test, debug and troubleshoot performance issues. • Clear experience with automation to create scripts for manual tasks (I.e., shell scripting, TCL, Perl, Python) #AI3<h3></h3>Mastercard is a merit-based, inclusive, equal opportunity employer that considers applicants without regard to gender, gender identity, sexual orientation, race, ethnicity, disabled or veteran status, or any other characteristic protected by law. We hire the most qualified candidate for the role. In the US or Canada, if you require accommodations or assistance to complete the online application process or during the recruitment process, please contact reasonable_accommodation@mastercard.com and identify the type of accommodation or assistance you are requesting. Do not include any medical or health information in this email. The Reasonable Accommodations team will respond to your email promptly.<h3></h3>Corporate Security Responsibility All activities involving access to Mastercard assets, information, and networks comes with an inherent risk to the organization and, therefore, it is expected that every person working for, or on behalf of, Mastercard is responsible for information security and must:<ul><li>Abide by Mastercard’s security policies and practices;</li><li>Ensure the confidentiality and integrity of the information being accessed;</li><li>Report any suspected information security violation or breach, and</li><li>Complete all periodic mandatory security trainings in accordance with Mastercard’s guidelines.</li></ul><h3></h3>In line with Mastercard’s total compensation philosophy and assuming that the job will be performed in the US, the successful candidate will be offered a competitive base salary and may be eligible for an annual bonus or commissions depending on the role. The base salary offered may vary depending on multiple factors, including but not limited to location, job-related knowledge, skills, and experience. Mastercard benefits for full time (and certain part time) employees generally include: insurance (including medical, prescription drug, dental, vision, disability, life insurance); flexible spending account and health savings account; paid leaves (including 16 weeks of new parent leave and up to 20 days of bereavement leave); 80 hours of Paid Sick and Safe Time, 25 days of vacation time and 5 personal days, pro-rated based on date of hire; 10 annual paid U.S. observed holidays; 401k with a best-in-class company match; deferred compensation for eligible roles; fitness reimbursement or on-site fitness facilities; eligibility for tuition reimbursement; and many more. Mastercard benefits for interns generally include: 56 hours of Paid Sick and Safe Time; jury duty leave; and on-site fitness facilities in some locations.Pay RangesO'Fallon, Missouri: $115,000 - $184,000 USD<h3></h3><h3></h3><h3></h3><h3></h3>

Senior Software Engineer

Backend C/C++ developer with Linux experience; familiar with performance testing, automation scripting (Python/TCL/Perl), understanding throughput/latency; agile environment.

Our PurposeMastercard powers economies and empowers people in 200&#43; countries and territories worldwide. Together with our customers, we’re helping build a sustainable economy where everyone can prosper. We support a wide range of digital payments choices, making transactions secure, simple, smart and accessible. Our technology and innovation, partnerships and networks combine to deliver a unique set of products and services that help people, businesses and governments realize their greatest potential.Title and Summary<h3></h3>Principal Software Engineer<h3></h3>Overview We are a St louis based development team building high value, cloud native applications. We are looking for brilliant and passionate software engineers to join our team. In this role you will play a leading role in building out a world class engineering team and design and implement world class innovative, high volume web applications. 	 Role 	• Design, code, document and test components / subsystems to a world class standard in an agile way 	• Be solution oriented – find and implement the ‘best fit’ solution to address the requirements on time 	• Work independently with teamwork spirit 	• Drive technology innovation within Commercial and across the company 	• Lead architectural design of various initiatives 	• Ensure adherence to established software development process 	• Share knowledge of various technologies to other team members 	• Mentor junior developers to technical leads. About You: 	• Do you love to code? 	• Do you have a passion for product design and technology innovation and have a high energy, can-do attitude and strong sense of ownership /desire to succeed? 	• Are you a talented software developer with a passion for delivering high quality, high performing and highly extensible software? 	• Do you have a strong background in developing and delivering high volume web services? Multiple examples of solutions deployed where you were a key architect and coder. 	• Current background in modern Architecture is a must. Background in Dev/Ops a distinct advantage. 	• Background in automation a distinct advantage. 	• You strive to create highly intuitive and responsive products. • You are comfortable with security concerns, authentication, authorization, and fixing vulnerabilities. Key Technology Areas: 	• Backend (Java/2JEE, Spring Boot, Python, API design, microservice architecture) 	• Frontend (CSS, HTML5, JavaScript, AngularJS) 	• Mobile (iOS, Android) 	• Database (Postgres, Oracle, MySQL, MongoDB)<h3></h3>Mastercard is a merit-based, inclusive, equal opportunity employer that considers applicants without regard to gender, gender identity, sexual orientation, race, ethnicity, disabled or veteran status, or any other characteristic protected by law. We hire the most qualified candidate for the role. In the US or Canada, if you require accommodations or assistance to complete the online application process or during the recruitment process, please contact reasonable_accommodation@mastercard.com and identify the type of accommodation or assistance you are requesting. Do not include any medical or health information in this email. The Reasonable Accommodations team will respond to your email promptly.<h3></h3>Corporate Security Responsibility All activities involving access to Mastercard assets, information, and networks comes with an inherent risk to the organization and, therefore, it is expected that every person working for, or on behalf of, Mastercard is responsible for information security and must:<ul><li>Abide by Mastercard’s security policies and practices;</li><li>Ensure the confidentiality and integrity of the information being accessed;</li><li>Report any suspected information security violation or breach, and</li><li>Complete all periodic mandatory security trainings in accordance with Mastercard’s guidelines.</li></ul><h3></h3>In line with Mastercard’s total compensation philosophy and assuming that the job will be performed in the US, the successful candidate will be offered a competitive base salary and may be eligible for an annual bonus or commissions depending on the role. The base salary offered may vary depending on multiple factors, including but not limited to location, job-related knowledge, skills, and experience. Mastercard benefits for full time (and certain part time) employees generally include: insurance (including medical, prescription drug, dental, vision, disability, life insurance); flexible spending account and health savings account; paid leaves (including 16 weeks of new parent leave and up to 20 days of bereavement leave); 80 hours of Paid Sick and Safe Time, 25 days of vacation time and 5 personal days, pro-rated based on date of hire; 10 annual paid U.S. observed holidays; 401k with a best-in-class company match; deferred compensation for eligible roles; fitness reimbursement or on-site fitness facilities; eligibility for tuition reimbursement; and many more. Mastercard benefits for interns generally include: 56 hours of Paid Sick and Safe Time; jury duty leave; and on-site fitness facilities in some locations.Pay RangesO'Fallon, Missouri: $170,000 - $281,000 USD<h3></h3><h3></h3><h3></h3><h3></h3>

Principal Software Engineer

Strong backend and frontend development experience; proficient in Java, Python, Spring Boot, API design, and microservices; experience with cloud-native web applications; leadership and mentoring skills.

Our PurposeMastercard powers economies and empowers people in 200&#43; countries and territories worldwide. Together with our customers, we’re helping build a sustainable economy where everyone can prosper. We support a wide range of digital payments choices, making transactions secure, simple, smart and accessible. Our technology and innovation, partnerships and networks combine to deliver a unique set of products and services that help people, businesses and governments realize their greatest potential.Title and Summary<h3></h3>Senior Software Engineer<h3></h3>Position Overview Have you ever wanted to be part of something BIG? Now is the time to make an immediate impact at a leading global technology company, Mastercard. Mastercard is seeking a Backend Software Engineer to join the AI&amp;DPE Data Engineering platform team, responsible for building and evolving large scale backend data systems, real time and batch pipelines, and AI enabled services that power analytics, decisioning, and automation across the organization. This is a Software Engineer backend engineering role, focused on Scala/Python/Java, distributed data platforms (Cloudera/Spark), and cloud based architectures, with a strong emphasis on AI agent creation and intelligent automation. Visualization tools (e.g., Qlik) are consumers of the platform, not the core focus of this role. You will work with massive transactional datasets, modern big data and cloud platforms, and AI driven workflows to transform how Mastercard processes, enriches, and operationalizes data at global scale. PRIMARY RESPONSIBILITIES Software Engineer Backend with Data Platform Engineering Design, develop, and maintain backend services and data pipelines using Scala, Python and Java Build and optimize batch and streaming workloads on Cloudera Data Platform (CDP) using Spark Work with Cloudera Manager to support platform configuration, monitoring, performance tuning, and operational stability Design and implement high quality datamarts and curated datasets with strong emphasis on data integrity, performance, and reliability AI Agents &amp; Intelligent Automation Design, build, and integrate AI powered agents that operate to support: Anomaly detection and operational intelligence workflow automation Apply generative AI driven, or rule based agents to reduce manual effort and improve scalability across backend systems Cloud &amp; Modern Data Architecture Build and support data and compute workloads in AWS environments Leverage Databricks for large scale data processing, advanced analytics Contribute to cloud native and hybrid architectures integrating on prem and cloud platforms Integration &amp; Downstream Enablement Enable downstream consumers (analytics, visualization, reporting tools such as Qlik) through well designed, reliable backend data interfaces Partner with analytics, fraud, and business teams to ensure backend systems meet evolving needs without compromising platform stability Documentation &amp; Collaboration Create clear technical documentation, including architecture diagrams, data flows, and design specifications Participate in Agile/Scrum ceremonies and cross functional design reviews Mentor and upskill team members in backend engineering, big data, and AI agent concepts KNOWLEDGE AND SKILL REQUIREMENTS Required BS/BA degree in Computer Science, Engineering, Information Systems, or related field Strong hand son experience with Scala,Python/Java in backend or data intensive systems Experience working with Cloudera Data Platform (CDP) and Spark Familiarity with Cloudera Manager for cluster administration, monitoring, or troubleshooting Strong understanding of data modeling concepts, distributed systems, and large scale data processing Excellent problem solving skills and ability to work independently in complex environments GOOD TO HAVE / STRONGLY PREFERRED Hands on experience building, integrating, or supporting AI driven agents or intelligent automation solutions Experience with Databricks for data engineering or ML workloads Experience working in AWS (e.g., S3, EC2, EMR, Glue, Lambda, IAM, or equivalent services) Knowledge of streaming and big‑data technologies: Kafka Hadoop ecosystem Hive/Impala Exposure to model monitoring, or AI platform enablement Experience with ETL tools such as Informatica Experience working in Agile / Scrum teams within large enterprises<h3></h3>Mastercard is a merit-based, inclusive, equal opportunity employer that considers applicants without regard to gender, gender identity, sexual orientation, race, ethnicity, disabled or veteran status, or any other characteristic protected by law. We hire the most qualified candidate for the role. In the US or Canada, if you require accommodations or assistance to complete the online application process or during the recruitment process, please contact reasonable_accommodation@mastercard.com and identify the type of accommodation or assistance you are requesting. Do not include any medical or health information in this email. The Reasonable Accommodations team will respond to your email promptly.<h3></h3>Corporate Security Responsibility All activities involving access to Mastercard assets, information, and networks comes with an inherent risk to the organization and, therefore, it is expected that every person working for, or on behalf of, Mastercard is responsible for information security and must:<ul><li>Abide by Mastercard’s security policies and practices;</li><li>Ensure the confidentiality and integrity of the information being accessed;</li><li>Report any suspected information security violation or breach, and</li><li>Complete all periodic mandatory security trainings in accordance with Mastercard’s guidelines.</li></ul><h3></h3>In line with Mastercard’s total compensation philosophy and assuming that the job will be performed in the US, the successful candidate will be offered a competitive base salary and may be eligible for an annual bonus or commissions depending on the role. The base salary offered may vary depending on multiple factors, including but not limited to location, job-related knowledge, skills, and experience. Mastercard benefits for full time (and certain part time) employees generally include: insurance (including medical, prescription drug, dental, vision, disability, life insurance); flexible spending account and health savings account; paid leaves (including 16 weeks of new parent leave and up to 20 days of bereavement leave); 80 hours of Paid Sick and Safe Time, 25 days of vacation time and 5 personal days, pro-rated based on date of hire; 10 annual paid U.S. observed holidays; 401k with a best-in-class company match; deferred compensation for eligible roles; fitness reimbursement or on-site fitness facilities; eligibility for tuition reimbursement; and many more. Mastercard benefits for interns generally include: 56 hours of Paid Sick and Safe Time; jury duty leave; and on-site fitness facilities in some locations.Pay RangesO'Fallon, Missouri: $115,000 - $184,000 USD<h3></h3><h3></h3><h3></h3><h3></h3>

Backend software engineer with Scala/Python/Java, CDP/Spark, AWS; experience in data platforms, real-time and batch pipelines, and AI-enabled services.

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