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Senior Software Engineer Jobs (On-site work)

826 Job Offers

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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
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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 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 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 Full Stack Software Engineer
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Senior Full Stack Software Engineer role at Miracle Heights, India, seeking 8-10 years of experience. You will design and deploy scalable cloud-native applications using Angular, React, Python (Flask/FastAPI), and SQL on GCP. Key responsibilities include building CI/CD pipelines, managing infrast...
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India , Miracle Heights
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Miracle Software Systems
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Senior Software Engineer - Fullstack | Data & Product | Enabling Functions | Inter IKEA
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Senior Software Engineer - Fullstack role at Inter IKEA in Malmö, Sweden. You will design scalable data & digital products, develop RESTful/GraphQL APIs, and build responsive React applications. Requires 5+ years in API design, authentication (OAuth 2.0, JWT), and test-driven development. Join a ...
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Sweden , Malmö
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IKEA
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Senior Embedded Software Engineer
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Senior Embedded Software Engineer sought to architect next-gen motion control systems for robotics and industrial automation. This role demands strong C/C++, ARM, and RTOS/bare metal expertise to optimize real-time algorithms. Based in Gloucestershire, you'll join a global R&D team solving comple...
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United Kingdom , Gloucestershire
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T2M Resourcing
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Senior Software Engineer
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Join Microsoft Advertising as a Senior Software Engineer to reinvent AI-era measurement systems. You’ll build near real-time conversion pipelines, optimizing attribution signals for global campaign performance. Requires a CS degree and 4+ years in C#, Java, or Python. Based in Redmond, WA, this r...
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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 Principal Software Engineer — Layer 7 Security
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Senior Principal Software Engineer sought to lead Layer 7 security innovation in Santa Clara. This strategic role demands expert-level C/Go skills, deep Unix/Linux experience, and a proven track record designing large-scale distributed systems. You will define architecture for next-gen firewall p...
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United States , Santa Clara
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170000.00 - 277000.00 USD / Year
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Palo Alto Networks
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Senior Principal Software Engineer — Layer 7 Security
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Senior Principal Software Engineer sought to lead Layer 7 security architecture for next-gen firewall platforms in Santa Clara, CA. Requires 12+ years of experience, expert C and Go skills, and deep Unix/Linux expertise. Drive scalable, distributed cloud security systems and mentor senior enginee...
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United States , Santa Clara
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170000.00 - 277000.00 USD / Year
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Palo Alto Networks
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Senior Software Engineer Staff
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Senior Software Engineer Staff at Lockheed Martin in Olney, MD. Design and code advanced software solutions for critical cybersecurity missions. Requires 14+ years of SWE experience, a Bachelor's in CS, and an active security clearance with polygraph. Join a team protecting national infrastructur...
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United States , Olney
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TieTalent
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Senior Software Engineer
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Senior Software Engineer sought for AMD’s Bangalore team to drive CPU performance innovation. Leverage strong C/C++ and algorithmic skills to optimize x86 server processors, analyze multi-core bottlenecks, and enhance HPC/MPI applications. Join a dynamic environment fostering technical patents, c...
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India , Bangalore
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AMD
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Senior Software Engineer
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Senior Software Engineer role in Draper, Utah, offering leadership in full-stack development with React.js, Ruby on Rails, and AWS. You’ll design scalable systems, mentor engineers, and drive CI/CD improvements. Benefits include 401(k), insurance, and free training. Join a collaborative team shap...
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United States , Draper
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Robert Half
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Principal/ Senior Software Engineer - Identity Security
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Principal/Senior Software Engineer – Identity Security at Palo Alto Networks in Tel Aviv. Drive innovation securing identities across hybrid and SaaS landscapes using cloud-native tech (Kubernetes, Docker, AWS/GCP/Azure). Requires 5+ years backend experience, AI-assisted development skills, and a...
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Israel , Tel Aviv
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Palo Alto Networks Italia
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Principal / Senior Software Engineer - Identity Security
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Join Palo Alto Networks as a Principal/Senior Software Engineer in Tel Aviv, shaping the future of Identity Security. You'll architect scalable, cloud-native solutions using Kubernetes, Docker, and microservices to secure hybrid and SaaS landscapes. Leverage AI tools like Gemini and Claude to dri...
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Israel , Tel Aviv
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Palo Alto Networks
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Senior Software Engineer
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Senior Software Engineer sought in Belfast to build high-quality, scalable applications impacting global users. You will drive technical decisions, mentor junior developers, and apply best practices in security and performance. Ideal for experienced engineers proficient in full-stack development,...
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United Kingdom , Belfast
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Kainos
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Senior Software Engineer(Ads)
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Senior Software Engineer (Ads) role in Beijing, China. Build a high-performance, large-scale inference platform for deep learning models at Microsoft Ads. Requires expert-level C++ and distributed systems experience, with preferred GPU acceleration skills (TensorRT, CUDA). Drive technical leaders...
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China , Beijing
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Microsoft Corporation
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Senior Software Engineer
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Senior Software Engineer needed for Microsoft AI’s Ads Data Platform Team in Redmond, WA. You’ll design high-scale systems processing trillions of ad events daily, driving double-digit growth. Requires 4+ years coding in C++, C#, Java, or Python with a CS degree. Build cutting-edge data platforms...
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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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About the Senior Software Engineer role

Senior Software Engineer jobs represent a pivotal career stage where technical expertise converges with leadership and strategic influence. These professionals are the cornerstone of software development teams, responsible for designing, building, and maintaining complex, scalable systems that power modern businesses. Moving beyond foundational coding tasks, senior engineers architect solutions, make critical technology decisions, and mentor others, ensuring both product excellence and team growth.

Typically, individuals in these roles undertake a broad spectrum of responsibilities. They are deeply involved in the full software development lifecycle, from requirement analysis and system design to implementation, testing, deployment, and ongoing optimization. A core duty is architectural design, where they choose appropriate technologies, design patterns, and frameworks to create robust, secure, and scalable applications. This often involves building backend services, APIs (RESTful or GraphQL), and dynamic frontend interfaces. They ensure code quality through rigorous practices like code reviews, writing comprehensive tests (unit, integration), and establishing CI/CD pipelines. Furthermore, senior software engineers frequently collaborate with cross-functional partners, including product managers, designers, and DevOps specialists, to translate business needs into technical specifications and seamless user experiences.

The skill set for these jobs is both deep and wide. Proficiency in one or more core programming languages (such as Python, Java, JavaScript/TypeScript, C#, or Go) is essential, alongside expertise in relevant frameworks and libraries for both frontend (e.g., React, Angular) and backend development. A strong grasp of data structures, algorithms, and system design principles is mandatory. Experience with cloud platforms (AWS, Azure, GCP) and their services for computing, storage, and networking is increasingly standard. Knowledge of database technologies, encompassing both SQL (PostgreSQL, MySQL) and NoSQL (MongoDB, DynamoDB) systems, is crucial. Beyond technical acumen, senior roles demand excellent problem-solving abilities to debug complex issues and optimize performance. Soft skills are equally important; effective communication to articulate technical concepts to non-technical stakeholders, project leadership, and the ability to mentor junior developers are key differentiators.

Common requirements for Senior Software Engineer jobs usually include a bachelor’s degree in computer science or a related field, although substantial equivalent experience is often acceptable. Most positions seek candidates with 5+ years of professional software development experience, demonstrating a proven track record of shipping and maintaining production systems. Employers look for individuals who exhibit end-to-end ownership of projects, a passion for continuous learning in a rapidly evolving field, and a strategic mindset focused on long-term maintainability and business impact. For those seeking to lead through technology and drive meaningful innovation, senior software engineer jobs offer a challenging and rewarding career path at the heart of the digital world.

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