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Senior Software Engineer - E-commerce Jobs

3415 Job Offers

Senior Software Engineer (Kotlin)
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Senior Software Engineer (Kotlin) sought by hyperexponential, a high-growth AI startup backed by a16z. Build scalable, cloud-native data systems on AWS using Terraform and Kotlin. You will design distributed analytics infrastructure and deliver customer-facing features for a $7 trillion insurance...
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United Kingdom , London
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hyperexponential
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Senior Software Engineer
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Senior Software Engineer sought to design and scale validation platforms for system-level confidence. This hands-on role requires 5+ years building distributed systems, Python/JavaScript expertise, and AWS experience. You will develop cloud-native services, APIs, and automation tooling for CI-int...
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India
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SimpliSafe
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Senior Software Engineer
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Senior Software Engineer sought by a London health-tech scale-up to scale a platform used by 100k+ customers. You’ll own problems end-to-end, working across Python backend, React/TypeScript frontend, and AWS infrastructure. Ideal candidates have 5+ years experience, actively use AI in their workf...
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United Kingdom , London
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100000.00 GBP / Year
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Orbis Consultants
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Senior Software Engineer, MediaWiki
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Join the Wikimedia Foundation as a Senior Software Engineer on the MediaWiki Platform team. You will enhance the core open-source platform powering Wikipedia, focusing on performance, scalability, and reliability. We seek backend engineering expertise, strong system design skills, and experience ...
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United States
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113082.00 - 175725.00 USD / Year
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Wikimedia Foundation
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Senior Software Engineer
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Join a greenfield AI startup in London redefining innovation discovery and protection. As a Senior Software Engineer, you’ll build production systems from scratch using Java, TypeScript, or Python, integrate with LLMs, and collaborate directly with founders. No legacy code or bureaucracy—just fas...
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United Kingdom , London
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120000.00 - 150000.00 GBP / Year
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Linux Recruit
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Senior Software Development Engineer
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Senior Software Development Engineer sought by CVS Health Digital to drive backend innovation using Java, Spring Boot, and microservices. You will design complex systems, integrate cloud-native services on GCP, and streamline CI/CD pipelines. This hybrid role in Buffalo Grove or Richardson offers...
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United States , Buffalo Grove; Richardson
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92700.00 - 203940.00 USD / Year
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CVS Health
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Senior Software Engineering-CoreAI
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Senior Software Engineering role at Microsoft CoreAI in Redmond, WA. Design and develop foundational platforms for Generative AI, including agent tooling, authentication, and control plane APIs. Requires 4+ years experience in C, C++, C#, Java, JavaScript, or Python, plus expertise in large-scale...
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United States , Redmond
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119800.00 - 234700.00 USD / Year
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Microsoft Corporation
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Senior Software Engineer - Margin Technology - Assistant Vice President
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Senior Software Engineer (AVP) sought for Citi’s Margin Technology team in London. You will build high-impact financial systems using Java, React, and Python, with expertise in RESTful APIs, Spring, and TDD. Ideal candidates have investment banking experience and knowledge of AWS, Kafka, or Kuber...
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United Kingdom , London
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Citi
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Senior Software Engineer (React)
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Senior Software Engineer (React) sought to build intuitive, high-performance UIs for cloud-based industrial AI solutions. You will lead technical design, develop complex data visualizations, and define front-end best practices. Requires 7+ years experience, expert TypeScript, and deep React exper...
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Poland , Rzeszów
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Edvantis
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Senior Software Engineer
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Senior Software Engineer needed in Annapolis Junction to design and optimize scalable data pipelines using Apache Spark, Airflow, and Python/Java. You will architect high-performance data ingress/egress systems for analytics workloads. Requires expertise in distributed processing, Linux CLI, Bash...
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United States , Annapolis Junction
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2HB
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Senior Software Engineer
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Senior Software Engineer needed in Annapolis Junction to design, sustain, and troubleshoot complex operational data flows. You will manage data storage, transport, security, and compliance while performing exploratory analysis to clean and transform raw data. Requires a Master’s degree plus 5 yea...
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United States , Annapolis Junction
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2HB
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Senior Software Engineer - Test Automation/Java
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Senior Software Engineer – Test Automation (Java) role in Warsaw, Poland. Join Mastercard's Developer Experience team to build and maintain high-quality automated tests and frameworks. Requires 5+ years of experience, strong Java skills, and expertise in API, UI, and distributed systems testing. ...
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Poland , Warsaw
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Mastercard
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Senior CAM Software Engineer
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Senior CAM Software Engineer sought in White River Junction, VT to lead development of advanced manufacturing software for complex turbomachinery. Requires 5+ years of C++ and Python experience, plus expertise in geometric modeling and CNC machining. Drive multi-axis toolpath programming, mentor ...
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United States , White River Junction, VT
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100000.00 - 130000.00 USD / Year
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Concepts NREC
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Senior Software Engineer (Python)
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Senior Software Engineer (Python) sought to build core back-end systems for cloud-based industrial AI solutions. You will design scalable, multi-tenant SaaS platforms using Python, FastAPI, and PostgreSQL, deploying to Kubernetes on Azure. This remote-first role in Poland offers flexible hours, c...
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Poland
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Edvantis
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Senior Software Engineer
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Join Microsoft’s OneDrive-SharePoint team in Noida as a Senior Software Engineer. You’ll solve cloud-scale challenges for 200M+ MAU using C#, .NET, or Python. Lead full-stack development, mentor juniors, and influence M365’s roadmap. Requires 8+ years’ experience, agile skills, and Azure knowledg...
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India , Noida
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Microsoft Corporation
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Senior Software Engineer
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Join Microsoft as a Senior Software Engineer in Redmond, WA, to shape the future of OneDrive and SharePoint. Design scalable systems for cloud migration, enhance core performance, and ensure zero customer impact. Requires a BS in CS or equivalent with 4+ years in C++, C#, Java, or Python. Drive b...
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United States , Redmond
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119800.00 - 234700.00 USD / Year
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Microsoft Corporation
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Senior Software Engineer
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Join Microsoft Security as a Senior Software Engineer in Redmond, WA. Design and ship core security capabilities with C, C++, C#, Java, JavaScript, or Python. Drive least-privilege and data-protection solutions in high-throughput, multi-tenant environments. Requires a Bachelor’s in CS + 4 years’ ...
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United States , Redmond
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119800.00 - 234700.00 USD / Year
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Microsoft Corporation
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Senior Software Engineer - Margin Technology
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Senior Software Engineer - Margin Technology at Citi in Belfast. Build high-impact financial systems using Java, React, and Python, with RESTful APIs and TDD. Join a global team solving complex problems at massive scale. Enjoy 27 days leave, bonus, private medical, and hybrid work.
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United Kingdom , Belfast
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Citi
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Senior Software Engineer
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Senior Software Engineer sought by HSBC in Krakow to drive Collateral Technology’s multi-year transformation. You will design scalable microservices, lead code reviews, and ship high-quality Java 17/21 solutions using Spring Boot and REST APIs. Requires 10+ years of experience, Agile/DevSecOps ex...
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Poland , Krakow
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25000.00 - 31000.00 PLN / Month
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HSBC
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Senior Software Engineer
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Senior Software Engineer sought by HSBC CIB to join the Global FX eRisk team in Poland. You will build and enhance low-latency forward pricing services, partnering directly with Quant Traders. Requires expert Java server-side skills, deep knowledge of concurrency, and experience with global distr...
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Poland
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23300.00 - 32000.00 PLN / Month
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HSBC
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About the Senior Software Engineer - E-commerce role

Senior Software Engineer - E-commerce Jobs: A Comprehensive Career Overview

A Senior Software Engineer specializing in e-commerce is a pivotal technical leader responsible for architecting, building, and maintaining the complex digital platforms that power online retail. These professionals are the backbone of the modern shopping experience, ensuring websites and applications are scalable, secure, performant, and capable of handling millions of transactions and users. In high-demand e-commerce jobs, these engineers translate business needs into robust technical solutions that directly impact revenue, customer satisfaction, and operational efficiency.

The role typically involves full-stack development, requiring proficiency in both frontend and backend technologies. On the frontend, they craft intuitive, responsive user interfaces using frameworks like React.js, Angular, or Vue.js, focusing on performance and seamless user experience. Backend responsibilities center on designing and implementing scalable microservices, RESTful or GraphQL APIs, and serverless functions that handle critical operations such as inventory management, payment processing, cart functionality, and order fulfillment. They work extensively with cloud platforms (AWS, Azure, GCP) and a variety of databases, both SQL (PostgreSQL, MySQL) and NoSQL (MongoDB, DynamoDB).

Common responsibilities extend beyond pure coding. Senior Software Engineers lead the design of system architecture, making crucial decisions on technology stacks and patterns like event-driven or serverless architectures. They ensure code quality through rigorous testing, code reviews, and the establishment of best practices. A significant part of the job is optimizing application performance and reliability, which includes implementing robust CI/CD pipelines, containerization with Docker/Kubernetes, and comprehensive monitoring. Collaboration is key; they frequently work with cross-functional teams including product managers, UX/UI designers, data scientists, and DevOps specialists to deliver cohesive features. Furthermore, they provide technical mentorship to junior developers and contribute to strategic planning and technical documentation.

Typical skills and requirements for these sought-after jobs include a bachelor’s degree in computer science or a related field, coupled with 5+ years of professional software development experience. Expertise in modern programming languages like JavaScript/TypeScript, Python, Java, or C# is essential. They must possess a deep understanding of e-commerce domain concepts—such as cart and checkout flows, payment gateways, product catalogs, and recommendation engines—along with strong knowledge of security best practices. Success in this profession demands excellent problem-solving abilities, effective communication skills to explain technical concepts to non-technical stakeholders, and a continuous learning mindset to adapt to rapidly evolving technologies. For those seeking challenging and impactful roles, Senior Software Engineer positions in e-commerce offer the opportunity to shape the future of digital commerce on a global scale.