Lead Python Specialist Jobs

Our Purpose Mastercard powers economies and empowers people in 200+ 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 Lead Data Scientist Overview: Services within Mastercard is responsible for acquiring, engaging, and retaining customers by managing fraud and risk, enhancing cybersecurity, and improving the digital payments experience. We provide value-added services and leverage expertise, data-driven insights, and execution. Role: We are seeking a highly skilled and motivated Lead Data Scientist to join our Cyber Analytics team within the Security Solutions Data Science organization. The successful candidate will play a leadership role in developing advanced analytics and machine learning solutions across cybersecurity, payments, and fraud. This person will also have formal people-management responsibilities for junior team members, helping them grow their technical capabilities, manage priorities, and deliver high-quality work. Job Responsibilities: • Lead the design, development, validation, and implementation of advanced analytical solutions, predictive models, and machine learning algorithms using large-scale payment, fraud, merchant, cybersecurity, and threat-intelligence data. • Provide technical leadership for graph analytics and modeling, including graph schema design, relationship modeling, community detection, link analysis, graph embeddings, and graph neural networks – all in service of

Our Purpose Mastercard powers economies and empowers people in 200+ 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 Lead Site Reliability Engineer Overview: Who is Mastercard? At Mastercard technology, 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 respects 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. Technology at Mastercard. What we create today will define tomorrow. Revolutionary technologies that reshape the digital economy to be more connected and inclusive than ever before. Safer, faster, more sustainable. And we need the best people to do it. Technologists who are energized by the challenges of a truly global network. With the talent and vision to create the critical systems and products that power global commerce and connect people everywhere to the vital goods and services they need every day. Working at Maste

Our Purpose Mastercard powers economies and empowers people in 200+ 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 Lead Software Engineer Overview Mastercard is seeking a highly skilled and passionate Tech Lead to drive the next generation of platform modernization, API transformation, cloud-native engineering, agentic workflow solutions, and AI-enabled product capabilities. The ideal candidate is a hands-on technical leader who can architect and deliver scalable enterprise systems while mentoring engineering teams, influencing technical strategy, and driving innovation across multiple initiatives. This role requires deep expertise in distributed systems, APIs, cloud technologies, AI-powered engineering, data platforms, and software delivery at scale. The successful candidate will play a critical role in shaping the future of Mastercard's intelligent platforms by combining strong technical leadership with exceptional execution capabilities. Role & Responsibilities Technical Leadership • Lead end-to-end delivery of complex engineering initiatives. • Define technical architecture, engineering patterns, solution roadmaps, and development standards. • Drive technical design reviews, architecture discussions, and engineering best practices. • Guide teams in building scalable, secure, resilient, and maintainable platforms. • Evaluate emerging technologies and recommend strategic adoption opportuni

We’re building a world of health around every individual — shaping a more connected, convenient and compassionate health experience. At CVS Health®, you’ll be surrounded by passionate colleagues who care deeply, innovate with purpose, hold ourselves accountable and prioritize safety and quality in everything we do. Join us and be part of something bigger – helping to simplify health care one person, one family and one community at a time. Position Summary The Product Analytics team at Aetna, a CVS Health company, engages with a number of functional teams across CVS businesses to serve our members with better insurance products and to support our Sales teams in selling the right product to the right customer. Lead Decision Scientists play an instrumental role in building cross-functional coalitions, defining product roadmaps that drive forward the most impact and engage with our Data Science team to deliver the appropriate business solutions. Lead Decision Scientists structure ambiguous business problems into analytics frameworks, translate data insights into recommendations for business decisions, guide the evaluation of the business impact for those decisions and prioritize possible actions based on value, feasibility and risk. To be successful in the role, Lead Decision Scientists need to excel in stakeholder management, consult with multiple business functions, recommend data-driven decisions to grow the business impact and ultimately deliver the solutions built by our Data Science team into the hands of our stakeholders. The ideal candidate will: Apply experience from strategy consulting, and analytics to successfully act as the product owner for multiple analytics initiatives. Demonstrate strong ability to communicate both technical concepts and implications to bu

About the Role We are looking for an experienced Credit Risk Data Scientist who is data-driven, has strong analytical and technical skills, and operates with a high degree of ownership. In this role, you will lead the credit strategy that lets Chime lend to people before they have a relationship with us — starting with Instant Loans for new members (top of funnel) and expanding to future unsecured credit products such as credit cards. You'll develop risk policies and strategies to manage credit risk throughout the member lifecycle, and you'll work as a trusted cross-functional partner with product, growth, data engineering, machine learning, and analytics teams, interacting with business stakeholders across many departments. In this role, you can expect to Own credit strategy for new-to-Chime applicants across the member lifecycle, starting with Instant Loans for prospects (top of funnel) and extending to future unsecured products such as credit cards and/or lines of credit Develop and evolve channel-specific credit policies (pre-approval / prescreen, direct mail, open application, referrals, and affiliates) that support growth while balancing risk, unit economics, and member experience Design and continuously iterate acquisition, loan amount / line assignment, pricing, line management, repayment, and collections strategies Leverage credit bureau (e.g., Experian), alternative, and internal Chime data to underwrite applicants with no prior Chime relationship; build credit models and policies hands-on and in partnership with our DSML team Lead test-and-learn: design and read out champion/challenger tests and controlled ramps, and quantify trade-offs among approvals, losses, direct deposit conversion, and lifetime value Partner with Finance and Strategy to size new channels and forecast approval funnels, vintage losses, and unit economics; set launch criteria, guardrails, and expansion triggers Collaborate with data teams to build data infrastructure and early-read mon

Razorpay is one of India’s leading full-stack financial technology companies, powering the way businesses move, manage, and grow money. Founded in 2014 by Harshil Mathur and Shashank Kumar with a simple vision - to simplify payments for Indian businesses - we’ve since grown into a fintech powerhouse driving India’s digital payment revolution. Razorpay powers millions of businesses with a smarter, scalable stack that goes beyond transactions to help them truly build and grow. From building AI-native agentic payments, to AI-assisted fraud detection and real-time risk intelligence to automated reconciliation, smart payouts, and predictive financial insights, we are embedding intelligence across our stack to make money movement faster, safer, and more efficient. In close collaboration with ecosystem partners - including banks, networks, regulators - we are pioneering industry-first solutions that are shaping the next era of fintech Across India, Singapore and Malaysia, our products span everything from seamless checkouts to payroll automation - powering a fintech ecosystem that’s redefining how money moves across Asia. Today, that ecosystem supports everyone from early-stage startups to some of India’s largest enterprises, enabling them to accept, process, and disburse payments at scale while expanding into new ways of managing money more efficiently. Our scale speaks volumes: Razorpay processes $180+ billion in annualized transactions, powering leading businesses like Airbnb, Facebook, WhatsApp, Airtel, CRED, BookmyShow, Zomato, Swiggy, Lenskart, Mirae Asset Capital markets, Indian Oil, National Pension Scheme - and over 100 of India’s unicorns. With strong roots in India and growing operations in Southeast Asia, we are shaping the next chapter of financial technology across the region. We are backed by global investors including GIC, Peak XV Partners (formerly Sequoia Capital India & SEA), Tiger Global, Ribbit Capital, Matrix Partners, MasterCard, and Salesforce V

We’re building a world of health around every individual — shaping a more connected, convenient and compassionate health experience. At CVS Health®, you’ll be surrounded by passionate colleagues who care deeply, innovate with purpose, hold ourselves accountable and prioritize safety and quality in everything we do. Join us and be part of something bigger – helping to simplify health care one person, one family and one community at a time. Position Summary Revenue Integrity is seeking a Lead Director, Informatics (Performance Reporting & Insights) to lead the development and delivery of enterprise risk adjustment analytics and business intelligence solutions. This role transforms complex clinical, operational, and risk adjustment data into actionable insights that will drive provider performance, program efficiency, and executive decision-making. This leader will be responsible for creating action through data storytelling, advanced visualizations, and helping to advance the organization’s reporting strategy through AI and automation. This This role is customer-facing and will provide thought leadership and vision partnership to areas such as Market leads, Finance, Clinical, and Operational partners. The leader must also provide technical guidance to staff on BI tool input modeling and calculations. Key Responsibilities Risk Adjustment Performance Reporting Accountable for timely and accurate sharing of risk adjustment KPIs, trends, and performance drivers at a market, plan, and provider level through dashboards and reporting tools Quantify drivers of risk movement and surface those insights to business leaders for action Assess performance against operational and organizational objectives, including appropriate benchmarking and goal setting <

Here at Appian, our values of Intensity and Excellence define who we are. We set high standards and live up to them, ensuring that everything we do is done with care and quality. We approach every challenge with ambition and commitment, holding ourselves and each other accountable to achieve the best results. When you join Appian, you’ll be part of a passionate team dedicated to accomplishing hard things, together. Lead Business Technology Engineer Location: McLean, VA | Work Model: On-site Are you a technical leader ready to architect, optimize, and scale the mission-critical platforms powering a global pioneer in enterprise transformation? Move beyond daily maintenance to bridge strategic engineering gaps, guide cross-functional teams, and future-proof the complex software layers that enable our global workforce. ABOUT THE TEAM The Appian Business Technology team is the strategic engine driving our internal corporate infrastructure forward. We design, optimize, and scale the enterprise systems that empower Appian employees globally, ensuring our internal operations mirror the high-performance capabilities of our market-leading technology and enable our corporate growth in the automation market. THE OPPORTUNITY This lead role is designed for an elite systems expert who thrives at the intersection of enterprise architecture, AI innovation, and stringent security compliance. At Appian, you will have the autonomy to direct the design and management of multiple complex Google Workspace (GWS) tenants. Including environments built to strict CMMC and FedRAMP requirements. You will pioneer the rollout of cutting-edge GWS AI tools and engineer seamless integrations across our tech stack, all while working face-to-face in a culture that champions collaboration and rapid technical innovation at our corporate headquarters. WHAT YOU'LL DO Multi-Tenant Architecture: Design, configure, and manage multiple complex Google Workspace tenants, ensuring continuous alignment with FedRAM

About Mach Industries Founded in 2023, Mach Industries is a rapidly growing defense technology company focused on developing next-generation autonomous defense platforms. At the core of our mission is the commitment to delivering scalable, decentralized defense systems that enhance the strategic capabilities of the United States and its allies. With a workforce of approximately 350 employees, we operate with startup agility and ambition. Our vision is to redefine the future of warfare through cutting-edge manufacturing, innovation at speed, and unwavering focus on national security. We are dedicated to solving the next generation of warfare with lethal systems that deter kinetic conflict and protect global security. The Role As Lead Manufacturing Engineer, Test, you will be the technical owner of production testing across all products and subsystems. This scope includes PCB flashing and configuration, component and subassembly test, end-of-line (EOL) system functional test, and final acceptance. You will define what gets tested, where, and how. You will design, source, and launch the stations, fixtures, software, and data flows that make it work at rate. You will work across Product Engineering, Firmware, Manufacturing Engineering, Controls, Quality, Supply Chain, and Operations so that design intent becomes repeatable, high-coverage, data-rich production testing. This is a hands-on technical role with direct reports. You will set the technical direction for your test area and guide the engineers, technicians, and integrators working on it. You will also be on the floor bringing up stations, debugging failures, and keeping hardware moving. Key Responsibilities Own production test strategy and execution for assigned products and subsystems, from incoming and component test through subassembly test, EOL functional test, rework and retest, and final acceptance. Turn product requirements, design intent, and DFMEA/PFMEA risks into test requirements, coverage maps, test l

About Mach Industries Founded in 2023, Mach Industries is a rapidly growing defense technology company focused on developing next-generation autonomous defense platforms. At the core of our mission is the commitment to delivering scalable, decentralized defense systems that enhance the strategic capabilities of the United States and its allies. With a workforce of approximately 350 employees, we operate with startup agility and ambition. Our vision is to redefine the future of warfare through cutting-edge manufacturing, innovation at speed, and unwavering focus on national security. We are dedicated to solving the next generation of warfare with lethal systems that deter kinetic conflict and protect global security. The Role Mach Industries is seeking a Lead Material Flow Engineer to develop our internal logistics network to support consistent, on-time delivery of raw materials and WIP enabling high-rate production across Mach’s factories In this role, you will design and scale end-to-end material flow across multiple product lines and manufacturing sites. This role leads the development of safe, efficient, and traceable processes that move parts and assemblies from suppliers and warehouses to production points of use. Working with Supply Chain, Manufacturing, Production Control, Quality, Engineering, Facilities, and site leadership, you will prepare for next year's production ramp, deliver site-ready solutions, and establish standards that can be deployed consistently across Mach’s enterprise. Key Responsibilities Lead material-flow strategy and implementation for production growth across multiple product lines and sites, from concept and capacity planning through launch, stabilization, and handoff of a fully detailed production plan to Operations. Map current and future-state value streams, and build discrete event simulation models to test flow, routing, staging, and capacity decisions before committing capital. Develop project plans, budgets, risk assessments, a

Lead Analyst Company: The Boeing Company Boeing F-22 Mission Systems team is hiring for a Lead Analyst located in Berkeley, MO . As Lead Analyst, you will be responsible for analyzing engineering solutions for the F-22 Raptor, including both enhancing existing field units with the addition of new capabilities as well as architecting and testing completely new systems. In this role you will be joining a cross-functional team to progress our products through the development lifecycle. Position Responsibilities: Leads analysis and translation of complex requirements into system architecture, hardware and software designs and interface specifications. Must be able to work in a fast-paced, collaborative environment, engaging with multiple teams and being responsive to agile requirements and critical path customer need dates. Collaborates with Responsible Engineers, customer technical staff, suppliers, and Lockheed Martin teammates to develop and document complex electronic and electrical system requirements for F-22 avionics sub-systems and weapon system architecture Analyzes and translates requirements into system architecture, hardware and software designs and interface specifications in support of lab and operational environments Reviews test data, including off-nominal data, for accuracy, quality and/or fidelity prior to delivery to customer This position is expected to be 100% onsite. The selected candidate will be required to work onsite at one of the listed location options. This position requires the ability to obtain a US Secret Security Clearance for which the US Government requires US Citizenship A final Secret Clearance

Upwork Inc.’s (Nasdaq: UPWK) family of companies connects businesses with global, AI-enabled talent across every contingent work type including freelance, fractional, and payrolled. This portfolio includes the Upwork Marketplace, which connects businesses with on-demand access to highly skilled talent across the globe, and Lifted, which provides a purpose-built solution for enterprise organizations to source, contract, manage, and pay talent across the full spectrum of contingent work. From Fortune 100 enterprises to entrepreneurs, businesses rely on Upwork Inc. to find and hire expert talent, leverage AI-powered work solutions, and drive business transformation. With access to professionals spanning more than 10,000 skills across AI & machine learning, software development, sales & marketing, customer support, finance & accounting, and more, the Upwork family of companies enables businesses of all sizes to scale, innovate, and transform their workforces for the age of AI and beyond. Since its founding, Upwork Inc. has facilitated more than $30 billion in total transactions and services as it fulfills its purpose to create opportunity in every era of work. Learn more about the Upwork Marketplace at Upwork.com and follow us on LinkedIn , Facebook , Instagram , TikTok , and X ; and learn more about Lifted at Go-Lifted and follow on LinkedIn . As a Lead Platform Operations Engineer, you’ll build the technical foundation for Upwork’s new international office while helping bring our cloud and Kubernetes infrastructure into one consistent operating model. In your first months, you’ll stand up the office network, take ownership of local technical operations, and act as the on-site technical contact for workplace technology until a dedicated Workplace resource is in place. Over time, your focus shifts to Platform Operations, where you’ll partner with Kubernetes Platform, Reliability Engineering, C

Elastic, the Search AI Company, enables everyone to find the answers they need in real time, using all their data, at scale — unleashing the potential of businesses and people. The Elastic Search AI Platform, used by more than 50% of the Fortune 500, brings together the precision of search and the intelligence of AI to enable everyone to accelerate the results that matter. By taking advantage of all structured and unstructured data — securing and protecting private information more effectively — Elastic’s complete, cloud-based solutions for search, security, and observability help organizations deliver on the promise of AI. What is The Role We're looking for a Lead Data Engineer to join our Data Engineering & Architecture team. In this role, you'll help grow a Data Platform that makes it easier for teams across our company to work with data confidently and effectively . Your work will directly support our business goals not just by keeping data flowing, but by turning it into something people can actually use and trust. This is a great opportunity for someone who enjoys both the technical craft of data engineering and the human side of it: collaborating with partners, sharing knowledge, and helping others get more out of the tools and systems you build together . What You Will Be Doing You'll design, maintain, and improve the pipelines and infrastructure that power our data platform. Day to day, that means working across the full data lifecycle — from ingestion and streaming to transformation and delivery — using tools like Apache Airflow, Spark, Iceberg, Kafka, Flink, and dbt Labs. Beyond the technical work, you'll spend meaningful time with stakeholders to understand what they need and help define how data should flow across systems. That includes co-creating data contracts, writing clear documentation, and guiding teammates on how to get the most out of the platform. A few other things you'll take on: Moni

The pay range is $132,000.00 - $238,000.00 Pay is based on several factors which vary based on position. These include labor markets and in some instances may include education, work experience and certifications. In addition to your pay, Target cares about and invests in you as a team member, so that you can take care of yourself and your family. Target offers eligible team members and their dependents comprehensive health benefits and programs, which may include medical, vision, dental, life insurance and more, to help you and your family take care of your whole selves. Other benefits for eligible team members include 401(k), employee discount, short term disability, long term disability, paid sick leave, paid national holidays, and paid vacation. Find competitive benefits from financial and education to well-being and beyond at https://corporate.target.com/careers/benefits . JOIN TARGET AS A LEAD DATA SCIENTIST – RECOMMENDATIONS (RecSys) About Us: Working at Target means helping all families discover the joy of everyday life. We bring that vision to life through our values and culture. Learn more about Target here <span style="color:#00

Our vision is to transform how the world uses information to enrich life for all . Micron Technology is a world leader in innovating memory and storage solutions that accelerate the transformation of information into intelligence, inspiring the world to learn, communicate and advance faster than ever. For more than 45 years, Micron Technology, Inc. has been at the forefront of innovation, delivering the world’s most advanced memory and semiconductor technologies. Our distributed team of engineers, scientists, and visionaries is developing groundbreaking solutions that redefine how the world uses information to enrich life for all. We are seeking a Layout Design Engineering Led to join Micron's organization in Guadalajara, Mexico. In this leadership role, you will guide a distributed team focused on developing complex analog, mixed‑signal, and custom layouts powering next‑generation AI and high‑performance computing solutions. Responsibilities Lead a team designing and developing critical analog, mixed‑signal, and custom block layouts, including support for full‑chip-level integration. Oversee layout verification activities, including LVS, DRC, Antenna checks, documentation, and quality reviews. Ensure timely and high‑quality delivery of block‑level layouts that meet all project requirements. Coordinate planning, area/time estimation, scheduling, task delegation, and execution for multiple concurrent projects. Mentor and guide layout engineers of all levels. Perform detailed reviews of sub‑block‑level layouts. Collaborate with global engineering teams to drive successful project execution and alignment across Micron’s worldwide footprint. Minimum Qualificatio