Senior Software Engineer

2 days 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

    1 week 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 days ago

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

    About MatiaMatia is at the forefront of theDataOps revolution, building a unified platform that streamlines data management from end-to-end. We empower data teams with seamless ingestion, reverse ETL, comprehensive observability, and intuitive data cataloging, enabling faster, smarter decisions with significantly less tool sprawl. Backed by leading investors...

  • Senior Technical Project Manager

    2 weeks ago

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

    We are looking for a highly experienced professional to lead a strategic, large-scale project: implementing and replacing the organization's CRM system with a cloud-based solution.In this role, you will take full ownership of the project from end to end, driving decision-making processes and ensuring execution through matrix management of diverse teams.You...

  • Software Architect

    3 days ago

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

    We are looking for aSolutions / IT Architectto plan architecture and build solution proposals according to business and technology requirements across ongoing projects and initiatives.The role requires strong analytical skills and the ability to understand client needs and business processes, alongside broad technological knowledge and understanding of the...

  • Senior Backend Engineer

    2 days 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...

  • Software Engineer

    2 days 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 Full Stack Engineer

    2 weeks ago

    Ramat Gan, Tel Aviv, Israel Experis Israel Full time ₪90,000 - ₪120,000 per year

    An innovative startup in the advertising field is looking for a Senior Full Stack DeveloperLocation:Ramat Gan|Full-time|1 day per week work from homeRole Responsibilities:Collaborate with cross-functional teams to develop high-quality software solutionsDesign and implement RESTful APIsDevelop and maintain backend services and enginesDesign and implement...

  • Senior Full stack Engineer

    2 weeks ago

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

    Job Title:Senior Full stack Engineer Overview:Overview Mastercard is looking for a talented Software Engineer to join the Mastercard Foundry Research and Development (R&D) team in our Tel Aviv. In this role you will be part of a highly agile team building exiting and innovative products delivered at scale to global markets. Our team is built on a foundation...

  • Senior Big Data Engineer

    2 weeks ago

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

    Shield is a global startup, with offices in TLV, NYC, LDN, and LIS. We're rapidly growing and looking for another important piece of the puzzle. Is it you? We are seeking a Senior Big Data Engineer with strong backend engineering expertise to design, build, and optimize large-scale data systems. The ideal candidate is passionate about distributed...

  • Senior Big Data Engineer

    2 weeks ago

    Ramat Gan, Tel Aviv, Israel Shield Full time ₪120,000 - ₪360,000 per year

    Shield is a global startup, with offices in TLV, NYC, LDN, and LIS.We're rapidly growing and looking for another important piece of the puzzle.Is it you?We are seeking a Senior Big Data Engineer with strong backend engineering expertise to design, build, and optimize large-scale data systems. The ideal candidate is passionate about distributed systems,...