Software Engineer / Senior Software Engineer Jobs

Join Mozilla's Firefox Enterprise team as a Senior Software Engineer. Develop and enhance Firefox for large-scale deployments, focusing on OS integration (Windows, macOS, Linux) using C/C++ and Rust. Enjoy a distributed, open-source culture with top benefits including performance bonuses, compreh...

Join Mozilla's Localization Team as a Senior Software Engineer. You will develop and maintain key Python/JavaScript tools like Pontoon and moz-l10n libraries, shaping i18n/l10n standards. This role involves collaborating with a global community to enhance Firefox and other products for worldwide ...

Join Citi in Warsaw as a Senior Go/Java Engineer. Build secure, cloud-native developer tools using Go, Java, and modern tech like Kubernetes and AWS. You'll enhance software supply chain security in an agile team. We offer great benefits including private medical care, a pension plan, and strong ...

Lead the future of Linux OS engineering on Arm-based platforms as a Senior Principal Software Engineer. This Austin-based role requires 8+ years of expertise in Linux kernel, device drivers, and system optimization using C/C++. Drive platform strategy, engage with the open-source community, and e...

Join Cresta's Voice Platform team in Toronto as a Senior Backend Engineer. Design and scale distributed microservices in Go, powering real-time AI-driven voice infrastructure. Lead initiatives in SIP/WebRTC, multilingual pipelines, and cloud reliability. Enjoy comprehensive benefits, wellness sup...

Seeking a Senior Software Engineer to design and implement new systems and enhance existing ones in East Berlin, US. This role requires 5+ years of experience, expert Azure PaaS knowledge, and full-stack development skills. You will drive the SDLC maturity, working independently in a hybrid envir...

Join Mercury's Risk Engineering team as a Senior Software Engineer specializing in AI & Automation. You will architect and launch agentic AI systems to automate risk and compliance workflows, from KYC to due diligence. This role requires 5+ years of software engineering experience, proven experti...

Join our team in St. Louis Park as a Senior Software Engineer. You will develop and modernize cloud-based applications using .NET Core, React/Vue/Angular, and Azure. We seek 5-7 years of experience with full-stack development and CI/CD pipelines. Enjoy comprehensive benefits including medical, de...

Join our team in Bedford as a Senior Software Test Engineer. You will lead testing for medical diagnostic systems, focusing on automation with Python, PyTest, and CI/CD tools like Jenkins. This role requires expertise in embedded device testing and a strong background in Agile/Scrum methodologies...

Join a fast-growing, Series B-funded AI startup as a Senior Software Engineer. We seek top-tier talent with full-stack or backend expertise and a proven trajectory at elite tech companies. Drive product development in a dynamic, collaborative environment and receive competitive salary and equity.

Join Method to redefine financial connectivity with cutting-edge APIs. As a Senior Software Engineer, you'll build scalable systems in JS/Node/React, handling millions of daily requests. This role offers autonomy, supporting innovation in Fintech from NYC, Austin, or DC.

Join Taboola in Tel Aviv as a Senior Java Software Engineer. Design and develop large-scale, real-time big data systems handling 140TB daily. Lead technically, mentor a team, and own products end-to-end in a dynamic, startup-like environment. Enjoy a transparent, passionate, and inclusive company...

Join our backend engineering team in Bengaluru as a Senior Software Engineer. Design scalable services and REST APIs using modern languages like Java or Python. We offer healthcare, learning stipends, and a dynamic, collaborative environment. Experience with microservices and cloud databases is a...

Lead the architecture and evolution of a large-scale Search platform as a Senior Staff Software Engineer at Bloomreach. This India-based, virtual-first role requires deep expertise in search systems, Java/Python, and cloud platforms. You will drive technical strategy, mentor engineers, and ensure...

Join Bloomreach as a Senior Software Engineer in Slovakia. Design and deliver high-throughput, low-latency systems on a leading AI agentic platform. Utilize your expertise in Go/Python, microservices, and CI/CD within a virtual-first, flexible environment. Enjoy stock units, bonuses, and a signif...

Join Bloomreach as a Senior Software Engineer in Czechia. Design and deliver high-throughput, low-latency systems on a leading AI agentic platform. Utilize your expertise in Go/Python, microservices, and CI/CD in a virtual-first, flexible environment. Shape the future of autonomous marketing with...

Join Optiver in Shanghai as a Senior Software Engineer. Design and deploy low-latency, high-throughput systems for our global trading platform. Collaborate with traders and researchers to solve complex problems and optimize cutting-edge technology. We seek passionate problem-solvers with 5+ years...

Join Temporal's AI SDK team as a Senior Software Engineer. Design and implement core SDK features in Python/TypeScript for reliable AI applications. We seek experts in generative AI, concurrency, and open-source with strong API design skills. Enjoy full benefits, remote work in the US, and shape ...

Join Microsoft's Azure Core New Tech team as a Senior Software Engineer. Develop automated systems to onboard and manage hardware for global datacenters. Leverage your expertise in C, C++, or C# to build large-scale, distributed backend systems. This role offers technical leadership in a hybrid/r...

Join Microsoft's Copilot Studio team in Redmond as a Senior Software Engineer. Design and build intuitive, high-scale front-end experiences for an AI-powered, low-code platform. Leverage your expertise in TypeScript and modern web development to empower developers worldwide. This role offers a ch...