Senior Software Engineer

4 hours ago

Ramat Gan, Tel Aviv, Israel Mastercard Full time ₪120,000 - ₪240,000 per year

Job Title:

Senior Software Engineer

Overview:

We're looking for a Senior Software Engineer who is passionate about both browser-based JavaScript and backend development. This role is ideal for someone who enjoys working across the stack, solving performance challenges in the browser, and building scalable backend systems.

What You'll Do

Develop and maintain high-performance client-side scripts using Vanilla JavaScript, ensuring compatibility and minimal impact across diverse customer websites.
Optimize cross-browser rendering, troubleshoot performance issues, and implement best practices for browser behavior and security.
Build and maintain backend services using , focusing on scalability, reliability, and maintainability.
Collaborate with product managers, designers, and engineers to define technical requirements and deliver impactful solutions.
Participate in architectural discussions and contribute to the evolution of both frontend and backend systems.
Ensure high code quality through code reviews, testing, and adherence to best practices.
Work with infrastructure components such as Redis, OpenSearch, AWS services, and Kubernetes.
Support observability and performance monitoring using tools like Grafana and Prometheus.
Contribute to initiatives around script safety, measuring and minimizing impact on web page performance across various environments.

What You Bring

- 5+ years of experience in JavaScript, with strong expertise in Vanilla JS for browser environments and for backend development.
- Solid understanding of browser internals, HTTP, performance optimization, and security.
- Experience working in production environments with real users and high-scale systems.
- Familiarity with client-side frameworks (e.g., React, Angular, Vue) and front-end build tools (e.g., Grunt, Webpack).
- Hands-on experience with Kubernetes, Redis, OpenSearch, and AWS/GCP/Azure.
- Knowledge of SQL/NoSQL databases (e.g., MySQL, Redis).
- Strong communication skills and a collaborative mindset.
- B.Sc. in Computer Science or equivalent practical experience.To find US Salary Ranges, visit People Place. Under the Compensation tab, select "Salary Structures." Within the text of "Salary Structures," click on the link "salary structures 2025," through which you will be able to access the salary ranges for each Mastercard job family. For more information regarding US benefits, visit People Place and review the Benefits tab and the Time Off & Leave tab.

  • Senior Software Engineer

    4 hours ago

    Ramat Gan, Tel Aviv, Israel Kroll Consulting Full time $104,000 - $130,878 per year

    Senior Software Engineer (for a well funded startup)Location:Israel (hybrid)Company:Medical Robotics startupAbout the Company:Our client is a well-funded AI start-up that develops robotics products (both hardware and software).They are looking for aSenior Software Engineerto join their core software group. This is a hands-on role for a builder and...

  • Senior Software Engineer

    2 weeks ago

    Ramat Gan, Tel Aviv, Israel Mastercard Full time ₪80,000 - ₪120,000 per year

    Our PurposeMastercard powers economies and empowers people in 200+ countries and territories worldwide. Together with our customers, we're helping build a sustainable economy where everyone can prosper. We support a wide range of digital payments choices, making transactions secure, simple, smart and accessible. Our technology and innovation, partnerships...

  • Senior Bookkeeper

    4 hours ago

    Ramat Gan, Tel Aviv, Israel Olea Software Full time ₪40,000 - ₪60,000 per year

    Description:Olea Software, an investment group managing several technology companies, is seeking a Senior Accountant to take full ownership of accounting and payroll activities.We're looking for an experienced, hands-on professional with deep knowledge of bookkeeping and payroll who's ready to work independently in a dynamic, growing...

  • Senior Backend Engineer

    4 hours ago

    Ramat Gan, Tel Aviv, Israel Navina Full time ₪120,000 - ₪180,000 per year

    Navina is a fast-growing digital health SaaS company that's on a mission to transform the way physicians interact with patient data. Thousands of clinicians across the United States already use Navina's AI-powered solution that transforms complex and fragmented patient data into concise "patient portraits" and actionable clinical insights at the point of...

  • Senior Engineer

    2 weeks ago

    Ramat Gan, Tel Aviv, Israel AAI Technologies Full time ₪100,000 - ₪120,000 per year

    We are looking for Senior Engineer to design and scale the core, backend and infrastructure powering our advanced AI reasoning systems.To work on high-performance distributed systems, production-grade services, and cloud-native environments, building the company's main product.What you'll doDesign and implement the software stack for our ai-based product...

  • Software Engineer

    2 weeks ago

    Ramat Gan, Tel Aviv, Israel AAI Technologies Full time ₪60,000 - ₪120,000 per year

    We're looking for software engineers at multiple experience levels to help design, build, and scale the core, backend and infrastructure powering our advanced AI reasoning systems.You'll work on high-performance distributed systems, production-grade services, and cloud-native environments that form the foundation of our core product.What you'll doContribute...

  • Senior QA Engineer

    4 hours ago

    Ramat Gan, Tel Aviv, Israel GK8 by Galaxy Full time ₪80,000 - ₪120,000 per year

    GK8 is seeking a skilled and detail-oriented Senior QA Engineer to join our team.In this role, you will play a key part in ensuring the quality and reliability of our software products. You will be responsible for designing test plans, developing and maintaining automated test suites, and promoting a quality-first approach across engineering teams. This...

  • Software Engineer

    4 hours ago

    Ramat Gan, Tel Aviv, Israel Elad Software Systems Full time ₪90,000 - ₪120,000 per year

    אלעד מערכות מגייסת מפתח/ת Full Stack ומנוסה לארגון פיננסי מוביל במרכז הזדמנות להצטרף לארגון מוביל ולהוביל פיתוח של פתרונות חדשניים בטכנולוגיות מתקדמות אנחנו מחפשיםמפתח/ת Full Stack בכיר/העם תשוקה...

  • Senior Devops Engineer

    2 weeks ago

    Ramat Gan, Tel Aviv, Israel Aqua Security Software Full time ₪60,000 - ₪120,000 per year

    We are seeking a skilled and experienced DevOps/SRE (Site Reliability Engineer) to join our dynamic DevOps team.As an SRE Engineer, you will play a crucial role in the design, development, and implementation of our infrastructure and deployment processes.Your primary focus will be on maintaining and improving our system's reliability, scalability, and...

  • Senior Software Architect

    2 weeks ago

    Ramat Gan, Tel Aviv, Israel Aqua Security Full time ₪80,000 - ₪120,000 per year

    Aqua, the foremost leader in cloud-native security solutions, is dedicated to safeguarding cloud-native technologies. With a mission to secure applications from development to production across diverse environments, Aqua is seeking an experienced and visionary Software Architect to join our Platform Technologies Group.In this role, you will shape the...