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Full Stack Developer Jobs

Citi

McKesson

Hybrid

Citi, the leading global bank, has approximately 200 million customer accounts and does business in more than 160 countries and jurisdictions. Citi provides consumers, corporations, governments, and institutions with a broad range of financial products and services, including consumer banking and credit, corporate and investment banking, securities brokerage, transaction services, and wealth management.As a bank with a brain and a soul, Citi creates economic value that is systemically responsible and in our clients’ best interests. As a financial institution that touches every region of the world and every sector that shapes your daily life, our Enterprise Operations &amp; Technology teams are charged with a mission that rivals any large tech company. Our technology solutions are the foundations of everything we do from keeping the bank safe, managing global resources, and providing the technical tools our workers need to be successful to designing our digital architecture and ensuring our platforms provide a first-class customer experience. We reimagine client and partner experiences to deliver excellence through secure, reliable, and efficient services.Our commitment to diversity includes a workforce that represents the clients we serve from all walks of life, backgrounds, and origins. We foster an environment where the best people want to work. We value and demand respect for others, promote individuals based on merit, and ensure opportunities for personal development are widely available to all. Ideal candidates are innovators with well-rounded backgrounds who bring their authentic selves to work and complement our culture of delivering results with pride. If you are a problem solver who seeks passion in your work, come join us. We’ll enable growth and progress together.Position OverviewWe are seeking an exceptionally skilled and motivated Full Stack Python Developer to guide our team in building robust, scalable, and high-performance data solutions. The ideal candidate will combine deep technical expertise with proven leadership abilities to drive innovation, mentor junior talent, and ensure the delivery of high-quality data products that drive critical business insights.The Full Stack Python Developer is a senior level position responsible for establishing and implementing new or revised application systems and programs in coordination with the Technology team. The overall objective of this role is to lead applications systems analysis and programming activities. Responsibilities:<ul><li>Partner with multiple management teams to ensure appropriate integration of functions to meet goals as well as identify and define necessary system enhancements to deploy new products and process improvements</li><li>Resolve variety of high impact problems/projects through in-depth evaluation of complex business processes, system processes, and industry standards</li><li>Provide expertise in area and advanced knowledge of applications programming and ensure application design adheres to the overall architecture blueprint</li><li>Utilize advanced knowledge of system flow and develop standards for coding, testing, debugging, and implementation</li><li>Develop comprehensive knowledge of how areas of business, such as architecture and infrastructure, integrate to accomplish business goals</li><li>Provide in-depth analysis with interpretive thinking to define issues and develop innovative solutions</li><li>Serve as advisor or coach to mid-level developers and analysts, allocating work as necessary</li><li>Appropriately assess risk when business decisions are made, demonstrating particular consideration for the firm&#39;s reputation and safeguarding Citigroup, its clients and assets, by driving compliance with applicable laws, rules and regulations, adhering to Policy, applying sound ethical judgment regarding personal behavior, conduct and business practices, and escalating, managing and reporting control issues with transparency.</li></ul> Recommended Qualifications:<ul><li>6&#43; years of relevant experience in Apps Development or systems analysis role with extensive Python and/or big data expertise</li><li>Python/Pyspark Mastery: Expert-level capability in developing and maintaining complex data processing and analytical solutions using Python/Pyspark, including advanced scripting and framework development.</li><li>Big Data Technologies &amp; Platforms: Extensive experience (8&#43; years) architecting, designing, implementing, and managing solutions within distributed data processing platforms, specifically with the Hadoop ecosystem (preferably Cloudera distributions). Proficient in leveraging key big data components such as distributed file systems (e.g., HDFS), data warehousing solutions (e.g., Hive), data transformation frameworks (e.g., Pig), and data ingestion tools (e.g., Sqoop), alongside hands-on experience with NoSQL databases (preferably MongoDB).</li><li>ETL Architecture &amp; Development: Proven ability to architect, design, and implement highly scalable data pipelines. Extensive experience leveraging industry-standard ETL tools and frameworks for efficient data extraction, transformation, and loading into various relational databases and data warehouses, coupled with a strategic vision and planning experience for migrating to cloud-native, serverless ETL solutions.</li><li>Data Architecture &amp; Strategic Modeling: Understanding of advanced data modeling principles and practical experience in data warehouse design and development, ensuring data integrity, scalability, security, and optimal performance .</li><li>AI-Powered Development: Ability to leverage advanced AI tools, such as Devin, for efficient code refactoring, optimization, and identifying potential code improvements, thereby enhancing code quality and developer productivity.</li><li>DevOps, Version Control &amp; Containerization:  CI/CD pipelines, Git, Docker and Kubernetes.</li><li>Extensive experience system analysis and in programming of software applications</li><li>Experience in managing and implementing successful projects</li><li>Subject Matter Expert (SME) in at least one area of Applications Development</li><li>Ability to adjust priorities quickly as circumstances dictate</li><li>Demonstrated leadership and project management skills</li><li>Consistently demonstrates clear and concise written and verbal communication</li></ul> Education:<ul><li>Bachelor’s degree/University degree or equivalent experience</li><li>Master’s degree preferred</li></ul> This job description provides a high-level review of the types of work performed. Other job-related duties may be assigned as required.------------------------------------------------------<h2>Job Family Group: </h2>Technology------------------------------------------------------<h2>Job Family:</h2>Applications Development------------------------------------------------------<h2>Time Type:</h2>Full time------------------------------------------------------<h2>Primary Location:</h2>Irving Texas United States------------------------------------------------------<h2>Primary Location Full Time Salary Range:</h2>$125,760.00 - $188,640.00 In addition to salary, Citi’s offerings may also include, for eligible employees, discretionary and formulaic incentive and retention awards. Citi offers competitive employee benefits, including: medical, dental &amp; vision coverage; 401(k); life, accident, and disability insurance; and wellness programs. Citi also offers paid time off packages, including planned time off (vacation), unplanned time off (sick leave), and paid holidays. For additional information regarding Citi employee benefits, please visit citibenefits.com. Available offerings may vary by jurisdiction, job level, and date of hire.------------------------------------------------------<h2>Most Relevant Skills </h2>Please see the requirements listed above.------------------------------------------------------<h2>Other Relevant Skills </h2>Big Data, Cloudera Data Platform (CDP), Microsoft SQL Server, Oracle, PySpark, Python (Programming Language).------------------------------------------------------<h2>Anticipated Posting Close Date:</h2>May 05, 2026------------------------------------------------------Citi is an equal opportunity employer, and qualified candidates will receive consideration without regard to their race, color, religion, sex, sexual orientation, gender identity, national origin, disability, status as a protected veteran, or any other characteristic protected by law. If you are a person with a disability and need a reasonable accommodation to use our search tools and/or apply for a career opportunity review <a href="https://www.citigroup.com/citi/accessibility/application-accessibility.htm" target="_blank">Accessibility at Citi</a>. View Citi’s <a href="https://www.citigroup.com/global/eeo-aa-policy" target="_blank">EEO Policy Statement</a> and the <a href="https://www.eeoc.gov/sites/default/files/2023-06/22-088_EEOC_KnowYourRights6.12ScreenRdr.pdf" target="_blank">Know Your Rights</a> poster.

Full Stack Python Developer, VP

Full Stack Python Developer

Senior-level full stack Python developer with 6+ years in apps development, strong Python/PySpark, big data, ETL, data architecture, DevOps, and leadership.

McKesson is an impact-driven, Fortune 10 company that touches virtually every aspect of healthcare. We are known for delivering insights, products, and services that make quality care more accessible and affordable. Here, we focus on the health, happiness, and well-being of you and those we serve – we care.What you do at McKesson matters. We foster a culture where you can grow, make an impact, and are empowered to bring new ideas. Together, we thrive as we shape the future of health for patients, our communities, and our people. If you want to be part of tomorrow’s health today, we want to hear from you.<div><h2>Role Summary</h2>Ontada&#39;s Engineering team builds iKnowMed (iKM), the leading Oncology EMR platform used by thousands of clinicians across the US to manage cancer treatment — from regimen ordering and chemotherapy scheduling to genomic result interpretation and clinical trial matching.We are hiring a Software Engineer III (P3) to design and build well-scoped core services, shared frameworks, and platform components that domain teams depend on to deliver clinical applications. This is a backend-first full-stack role — you will spend the majority of your time in Java and Spring Boot building services, APIs, and event-driven integrations, with frontend work focused on building integration layers, enablement UIs, and end-to-end validation using React and TypeScript.You will work within established architectural standards, collaborate closely with senior engineers and architects, and focus on making your services reusable, well-documented, and easy for other teams to adopt. Your success is measured not only by what you build, but by how effectively other teams can build on top of it.This role is ideal for an engineer who:<ul><li>Enjoys building the foundations that other teams build on</li><li>Cares deeply about API design, modularity, and developer experience</li><li>Wants to work in a high-impact healthcare domain where software directly affects patient outcomes</li><li>Is ready to own well-scoped services end-to-end (design through build through test through monitor) without needing to own the overall architecture</li></ul><h2></h2><h2>Technical Environment</h2>Layer — Technologies<ul><li>Backend: Java, Spring Boot, JPA/Hibernate, WildFly (Jakarta EE)</li><li>APIs: RESTful services, OpenAPI/Swagger</li><li>Messaging: Apache Kafka (event-driven clinical workflows)</li><li>Data: Oracle (primary RDBMS), Redis (caching), Elasticsearch (search), Databricks (analytics/pipelines)</li><li>Frontend: React, TypeScript, Webpack Module Federation</li><li>Observability: Dynatrace (logs, metrics, distributed tracing)</li><li>Infrastructure: Linux, Docker, CI/CD pipelines, Git</li><li>Healthcare Standards: HL7v2, FHIR, C-CDA, SNOMED CT, LOINC, RxNorm</li><li>Quality: JUnit, Mockito, Integration Testing, Code Reviews</li><li>Documentation: Markdown, Mermaid diagrams, API specifications</li></ul><h2></h2><h2>Key Responsibilities</h2>Backend Services and API Development<ul><li>Design and implement well-scoped backend services and shared components using Java and Spring Boot, following established architectural patterns</li><li>Build and maintain RESTful APIs with clear contracts, consistent error handling, and comprehensive documentation that domain teams can adopt with minimal friction</li><li>Implement event-driven integrations using Kafka — produce and consume events that connect clinical workflows across services (e.g., order state changes, lab result notifications, patient data sync)</li><li>Build data integrations and pipeline components that connect to Databricks for analytics, reporting, and clinical data processing</li><li>Write production-quality code against Oracle databases using JPA/Hibernate, with attention to query performance, transaction management, and data integrity</li></ul>Core Platform Enablement<ul><li>Contribute to common core services, shared libraries, and frameworks that are consumed by multiple clinical domain teams (ordering, scheduling, clinical documents, genomics)</li><li>Build services with reusability as a first-class requirement — consistent API patterns, well-defined event schemas, clear extension points</li><li>Collaborate with domain teams to understand their integration needs and usage patterns, and adapt platform services to enable rapid application development</li><li>Follow platform conventions for API versioning, event contracts, data handling, error taxonomy, and security standards</li></ul>Full-Stack Integration (React and TypeScript)<ul><li>Build frontend integration layers, admin UIs, and enablement interfaces using React and TypeScript to expose platform capabilities to end users and domain teams</li><li>Implement frontend changes required to validate end-to-end clinical workflows — ensuring backend services work correctly through the full stack</li><li>Work within the existing frontend architecture (Webpack Module Federation, legacy-to-modern migration patterns) without owning frontend architecture decisions</li></ul>Quality and Testing<ul><li>Develop unit, integration, and API-level tests to ensure correctness and prevent regressions</li><li>Participate in peer code reviews, applying established coding, security, and quality standards</li><li>Create and maintain clear technical documentation (Markdown, Mermaid diagrams, API specs) that enables domain teams to self-serve</li></ul>Observability and Production Support<ul><li>Use Dynatrace for log analysis, metrics review, and distributed trace investigation to diagnose and resolve production issues with guidance from senior engineers</li><li>Implement structured logging, telemetry, and error-handling patterns defined by the platform team</li><li>Identify and implement incremental improvements to service reliability, performance, and operational visibility within your owned components</li></ul>Agile Execution<ul><li>Participate actively in sprint planning, backlog refinement, sprint reviews, and retrospectives</li><li>Deliver committed work predictably, surface risks early, and communicate blockers clearly</li><li>Adopt approved tools, frameworks, and CI/CD patterns defined by platform and architecture teams</li></ul><h2></h2>We are unable to offer or provide sponsorship for this role presently or in the future.<h2>Minimum Requirement</h2>Degree or equivalent and typically requires 4&#43; years of relevant experience.<h2>Education</h2>Bachelor&#39;s degree in Computer Science, Software Engineering, or equivalent practical experience.Critical SkillsBackend (Primary — 70% of the role)<ul><li>5 to 7 years of professional software development experience, with the majority in backend/server-side development</li><li>Strong proficiency in Core Java and Spring Boot (dependency injection, REST controllers, data access, testing)</li><li>Experience designing and implementing RESTful APIs consumed by multiple client applications</li><li>Practical experience with event-driven architectures — producing and consuming messages via Kafka or equivalent</li><li>Solid understanding of relational databases — SQL, ORM (JPA/Hibernate), indexing, query optimization, transaction management</li><li>Experience working with or integrating into data platforms (Databricks, Spark, or equivalent) for analytics or pipeline support</li><li>Ability to investigate production issues using Dynatrace — navigating logs, analyzing response time metrics, and following distributed traces</li></ul>Full-Stack and Frontend (Secondary — 30% of the role)<ul><li>Working experience with React.js and TypeScript</li><li>Understanding of how frontend applications consume backend APIs, handle state, and render data</li><li>Ability to build or modify frontend components to support end-to-end feature delivery</li></ul>Foundational<ul><li>Solid understanding of Linux/Unix environments, shell scripting, and basic networking</li><li>Experience with Git, CI/CD pipelines, and automated testing practices</li><li>Clear written and verbal communication — ability to document services and explain technical decisions</li></ul><h2></h2><h2>Preferred Skills</h2><ul><li>Experience in healthcare IT or familiarity with clinical data standards (HL7, FHIR, C-CDA, SNOMED, LOINC, RxNorm)</li><li>Experience building shared libraries, SDKs, or platform services consumed by other engineering teams</li><li>Exposure to containerization (Docker) and orchestration</li><li>Experience with Elasticsearch for search or indexing use cases</li><li>Familiarity with Agile/Scrum methodologies in enterprise environments</li></ul>  This position offers the possibility of a hybrid work arrangement based on recent updates to our in-office/work‑from‑home model.  If located in DFW area, the selected candidate may be expected to work on‑site at our Las Colinas office a minimum of two (2) days per week, with the remaining days worked remotely. Specific in‑office days may be designated according to team needs and business priorities.</div>We are proud to offer a competitive compensation package at McKesson as part of our Total Rewards. This is determined by several factors, including performance, experience and skills, equity, regular job market evaluations, and geographical markets. The pay range shown below is aligned with McKesson&#39;s pay philosophy, and pay will always be compliant with any applicable regulations. In addition to base pay, other compensation, such as an annual bonus or long-term incentive opportunities may be offered. For more information regarding benefits at McKesson, please <a href="https://careers.mckesson.com/en/benefits" target="_blank">click here.</a>Our Base Pay Range for this position$108,700 - $181,100McKesson has become aware of online recruiting-related scams in which individuals who are not affiliated with or authorized by McKesson are using McKesson’s (or affiliated entities, like CoverMyMeds or RxCrossroads) name in fraudulent emails, job postings or social media messages. In light of these scams, please bear the following in mind: McKesson Talent Advisors will never solicit money or credit card information in connection with a McKesson job application. McKesson Talent Advisors do not communicate with candidates via online chatrooms or using email accounts such as Gmail or Hotmail. Note that McKesson does rely on a virtual assistant (Gia) for certain recruiting-related communications with candidates.McKesson job postings are posted on our career site: <a target="_blank" href="http://careers.mckesson.com">careers.mckesson.com</a>.McKesson is an Equal Opportunity Employer McKesson provides equal employment opportunities to applicants and employees, without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, protected veteran status, disability, age, genetic information, or any other legally protected category. For additional information on McKesson’s full Equal Employment Opportunity policies, visit our <a target="_blank" href="https://www.mckesson.com/about-mckesson/eeo-at-mckesson/">Equal Employment Opportunity</a> page. McKesson is committed to being an Equal Employment Opportunity Employer and offers opportunities to all job seekers including job seekers with disabilities. If you need a reasonable accommodation to assist with your job search or application for employment, please contact us by sending an email to (United States) <a target="_blank" href="mailto:Disability_Accommodation&#64;McKesson.com">Disability_Accommodation&#64;McKesson.com</a> or (Canada) <a target="_blank" href="mailto:Accessibility&#64;mckesson.ca">Accessibility&#64;mckesson.ca</a>. Resumes or CVs submitted to this email box will not be accepted.Join us at McKesson!

Software Engineer III — Full Stack (Backend-Focused, Core Platform Services)

Software Engineer III

Senior backend-focused engineer; Java/Spring Boot; build core services, APIs, platform components; backend-first, with some frontend work.

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