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Senior Software Engineer Jobs

3288 Job Offers

Senior Software Engineer
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Senior Software Engineer sought to join a high-performing Betting division team in London, UK. You will architect and build highly distributed, real-time systems for industry-leading Sportsbook and Risk Management products. Requires expert-level OOP skills (C#, Java, Python), strong software arch...
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United Kingdom , London
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Not provided
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Genius Sports
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Senior Software Engineer - Margin Technology - Assistant Vice President
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Senior Software Engineer (AVP) sought for Margin Technology in London. Join a global team building high-quality solutions using Java, React, and Python. You will develop RESTful APIs with Spring, apply TDD, and work on complex business problems in a fast-paced environment. Benefits include 27 day...
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United Kingdom , London
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Citi
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Senior Software Engineer
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Senior Software Engineer sought by a fast-scaling London fintech transforming FX and treasury operations. You will build high-impact, cloud-native trading systems using C#/.NET, SQL, and microservices. Ideal for engineers with 5+ years’ experience in financial technology. Join a collaborative tea...
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United Kingdom , London
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80000.00 - 100000.00 GBP / Year
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Harrington Starr
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Senior Software Engineer, Database
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Senior Software Engineer, Database – Dublin, Ireland. Join Demonware to build and evolve database tooling platforms used by millions of players worldwide. Requires 7+ years’ experience, Python expertise, MySQL/NoSQL skills, and Kubernetes knowledge. Enjoy a collaborative, onsite team environment ...
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Ireland , Dublin
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Activision
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Senior Software Engineer
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Senior Software Engineer sought by Optimizely to build scalable CMS features and cloud-based systems in London. Requires 8+ years’ experience with C#, .NET, and React, plus strong software design fundamentals. Join a leader in MarTech, working cross-functionally on AI-powered solutions for global...
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United Kingdom , London
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Optimizely
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Senior Software Design Engineer
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Senior Software Design Engineer sought for a leadership role in Adelaide, Australia. You will guide a team in developing robust embedded software using C++20/23 and Python. Key requirements include extensive C/C++ experience, technical leadership, and Linux expertise. Benefit from a modern Mawson...
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Australia , Adelaide
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Codan Limited
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Senior Software Engineer
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Senior Software Engineer needed for a contract role in Lake Buena Vista, FL. You will build backend services and APIs using Python or Go, develop automation workflows, and support CI/CD pipelines. Requires 2–5 years of experience, cloud platform exposure (AWS/Azure/GCP), and containerization skil...
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United States , Lake Buena Vista
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Software Resources
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Senior Software Engineer
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Senior Software Engineer sought by Teradyne in North Reading, MA to design and extend software for large test systems. Requires 10+ years of C# .NET, multi-threaded development, and machine vision expertise. Collaborate globally on capital equipment and factory integration solutions. Benefits inc...
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United States , North Reading
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161700.00 - 258800.00 USD / Year
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Teradyne
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Senior Software Engineer
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Senior Software Engineer (Embedded Firmware) sought by Teradyne in North Reading, MA. You will develop C#/C++ OO solutions for ATE hardware, requiring 10+ years’ experience with Linux/Windows, multithreading, and Git. Key skills include SPI, I2C, FPGA buses, and ARM/Intel architectures. Enjoy med...
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United States , North Reading
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161700.00 - 258800.00 USD / Year
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Teradyne
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Senior Software Engineer
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Senior Software Engineer needed to lead development of scalable payment and marketplace platforms in New York. Requires 8+ years in C#, .NET Core, microservices, and AWS. Drive high-availability systems, mentor engineers, and shape eCommerce architecture. Benefits include medical, dental, 401(k),...
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United States , New York
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65.00 - 70.00 USD / Hour
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Solomon Page
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Senior Software Engineer
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Senior Software Engineer needed to architect Microsoft’s next-gen AI-driven bidding platform in Mountain View, CA. You will build large-scale distributed systems processing billions of real-time ad auctions, leveraging machine learning and reinforcement learning. Requires a Bachelor's in CS and 4...
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United States , Mountain View
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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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Senior Software Engineer sought to build next-gen data streaming infrastructure at Confluent. You'll design scalable storage systems for the Tableflow project, working with distributed systems and open-source tech like Apache Kafka. This remote-first role in the US offers robust benefits, flexibl...
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United States
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182100.00 - 245800.00 USD / Year
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Confluent
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Senior Software Engineer — Privacy-First Communications Infrastructure
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Senior Software Engineer sought to build privacy-first communication infrastructure for finance, government, and enterprise. You will architect high-throughput backend systems with true end-to-end encryption, leveraging PostgreSQL, Redis, and NATS. Requires 3+ years in systems programming (Rust, ...
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United States
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225000.00 - 400000.00 USD / Year
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Lawrence Harvey
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Senior Software Engineer
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Senior Software Engineer sought in Hyderabad, India, to build and operate LLM-powered agentic systems in production. You will leverage AI-assisted development tools like GitHub Copilot, requiring expertise in C#, Java, or Python and GenAI application development. This role offers mentorship oppor...
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India , Hyderabad
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Microsoft Corporation
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Senior Software DevOps Engineer
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Senior Software DevOps Engineer sought by SITA in Sydney, Australia to drive cutting-edge aviation solutions. You will design CI/CD pipelines, manage Kubernetes/Docker infrastructure, and mentor junior engineers. Requires expertise in Java build tools, Ansible, Python, and RHEL. Benefits include ...
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Australia , Sydney
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SITA
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Senior Software Engineer, Observability
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Senior Software Engineer, Observability – Bengaluru. Build and scale core observability systems (metrics, logs, traces) using Go, Kubernetes, and cloud platforms. Leverage TSDB, Parquet, and open-source tools (Prometheus, Grafana, Loki) to enhance performance and cost efficiency. Collaborate cros...
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India , Bengaluru
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Roku
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Senior Software Engineer, Embedded UI - C++
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Senior Software Engineer, Embedded UI – C++ at Roku in Cambridge, UK. Join the #1 TV streaming platform to develop and optimize high-performance rendering engines and UI frameworks. Requires 5+ years in C++, embedded systems, and Linux, with experience in JavaScript/TypeScript frameworks. Enjoy f...
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United Kingdom , Cambridge
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Roku
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Senior Software Engineer, Infrastructure / Efficiency / Productivity
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Senior Software Engineer, Infrastructure / Efficiency / Productivity sought by Roku in Cambridge, UK. This architect-level role drives org-wide productivity by owning AI-first automation, CI/CD pipelines, and enterprise tooling. Requires deep expertise in Git, Jenkins, Docker, and build systems (...
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United Kingdom , Cambridge
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Roku
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Senior Software Engineer, Infrastructure and Efficiency
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Senior Software Engineer, Infrastructure and Efficiency role in Manchester, UK. Drive org-wide productivity by architecting AI-first automation, CI/CD pipelines, and developer tooling at scale. Requires Staff/Principal-level experience with Git, Jenkins, Docker, and build systems. Join Roku to sh...
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United Kingdom , Manchester
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Roku
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Senior Software Engineer (Digital Showroom)
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Senior Software Engineer (Digital Showroom) sought to own full-stack development in a large-scale serverless cloud environment using Node, React, Next, and GCP. You will architect microservices, champion test-driven quality, and mentor engineers while bridging communication with stakeholders. Enj...
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United Kingdom; France , London; Nantes; Paris
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Akeneo
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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.