Senior Frontend Software Engineer at Semperis | Tel Aviv

Join Semperis, where we believe in being a Force for Good. Our commitment to fostering a positive workplace is reflected in our recognition as one of America's Fastest-Growing Cybersecurity Companies by Inc. 5000 and a multi-year recipient of the Inc. Best Workplace award.Position Overview:We are on the lookout for a Senior Frontend Engineer to become an integral part of our Engineering team.Your Role:As a Senior Frontend Engineer, you will collaborate with a talented team to create innovative user-facing experiences for our security and identity solutions. You will be at the forefront of leveraging the latest technologies and frameworks to design and implement scalable, maintainable architectures.Key Responsibilities:Transform designs from Figma into engaging and functional user interfaces.Develop new features while ensuring the integrity of the existing codebase.Collaborate closely with designers, product managers, and backend engineers.Exhibit a strong sense of aesthetics and commitment to pixel-perfect execution.Qualifications:At least 5 years of practical experience in frontend development, with proficiency in frameworks such as Vue (preferred), React, or similar.Experience with state management libraries like Pinia or Redux.Deep understanding of Typescript.Skilled in writing and executing unit tests, with familiarity in modern testing frameworks such as Jest and Vitest.Excellent analytical and problem-solving abilities, with a knack for diagnosing and resolving complex frontend challenges.A strong desire to stay current with frontend trends and adapt to emerging technologies.

At Semperis, we are committed to being a Force for Good, starting with creating a fantastic workplace. We recognize that when individuals feel appreciated, supported, and empowered, they achieve their highest potential. Therefore, we are dedicated to fostering an employee experience that emphasizes purpose, growth, and work-life balance. Semperis has earned accolades as one of America’s Fastest-Growing Cybersecurity Companies by the Inc. 5000, a DUNS 100 Top Startup to Work For, and has received multiple Inc. Best Workplace awards.About the RoleWe are on the lookout for a talented Senior Backend Engineer to join our Platform Group. In this pivotal role, you will design and develop shared infrastructure components that drive Semperis's enterprise security and identity solutions. This position necessitates a combination of technical expertise and robust collaboration skills across teams.Your ResponsibilitiesAs a Senior Backend Engineer on our Core Platform team, you will:Design and develop shared platform components that are scalable, reliable, and maintainable for multiple product teams.Architect distributed systems utilizing microservices and event-driven patterns to accommodate enterprise-level workloads.Take ownership of critical backend services from initial concept to deployment, ensuring code quality, performance, and operational excellence.Engage in extensive collaboration with product engineers, DevOps, and architects to define platform capabilities and technical standards.Mentor junior engineers through code reviews, pair programming sessions, and providing technical guidance.Lead technical initiatives aimed at enhancing developer productivity, system observability, and platform resilience.Contribute to architectural decisions and establish best practices for backend development organization-wide.Analyze system performance and data patterns to uncover optimization opportunities and guide future platform investments.QualificationsRequired Skills7+ years of professional software engineering experience, with significant expertise in backend development.Extensive knowledge of C# and .NET Core, including familiarity with modern framework features and performance optimization techniques.Proficient in designing and implementing microservices architectures and event-driven systems.Strong problem-solving skills with a focus on delivering high-quality solutions.Excellent communication and teamwork abilities to collaborate effectively with various stakeholders.

At Semperis, we strive to be a Force for Good, starting with our commitment to creating a supportive workplace. We believe that when employees feel appreciated and empowered, they excel in their roles. Our focus on fostering a purpose-driven, growth-oriented, and balanced employee experience has earned us recognition as one of America’s Fastest-Growing Cybersecurity Companies by Inc. 5000, a DUNS 100 Top Startup to Work For, and a multi-year recipient of the Inc. Best Workplace award.We are excited to invite a Solutions Architect, System Integrator to join our dynamic team.Your Role:As a Solutions Architect at Semperis, you will play a pivotal role in our Customer Success Technical Delivery team, collaborating closely with product, sales, and engineering teams to implement our cutting-edge security and identity solutions.Your responsibilities will include:Developing technical solutions that align with our customers' business and technical objectives.Leading the technical aspects of production deployments in customer environments, ensuring seamless deployment design, providing technical assistance, and troubleshooting configuration issues.Diagnosing Windows Server OS and Active Directory issues that may emerge during deployment.Offering post-deployment technical support to our clients.Communicating and documenting technical requirements between customers and our teams.Providing valuable feedback to engineering and development teams based on customer interactions.Maintaining an expert-level understanding of Semperis products to craft innovative solutions and staying updated on emerging technology trends.Your Qualifications:Minimum of 7 years of hands-on experience with Active Directory from a systems integration vendor or enterprise IT organization.Experience in administering, architecting, or supporting enterprise Active Directory environments.At least 3 years of practical experience with Azure AD / Entra ID.Background in administering or supporting Azure AD / Entra ID environments.

At Semperis, we strive to be a Force for Good by fostering an exceptional workplace environment. We understand that when employees feel valued and supported, they excel in their roles. Our focus is on creating a work experience that emphasizes purpose, growth, and work-life balance. Semperis has earned accolades as one of America’s Fastest-Growing Cybersecurity Companies by Inc. 5000, recognized as a DUNS 100 Top Startup to Work For, and honored multiple times as an Inc. Best Workplace.About the RoleWe are looking for a talented Backend Engineer to become a vital part of our Platform Group. You will be instrumental in designing and developing shared infrastructure components that are integral to Semperis's enterprise security and identity solutions. This role demands both technical prowess and the ability to partner effectively across teams.What You'll DoAs a Backend Engineer on our Core Platform team, your responsibilities will include:Designing and implementing shared platform components for multiple product teams, ensuring they are scalable, reliable, and maintainable.Architecting distributed systems using microservices and event-driven architectures to handle enterprise-scale workloads.Owning key backend services from initial conception to deployment, focusing on code quality, performance improvements, and operational excellence.Collaborating closely with product engineers, DevOps, and architects to define platform capabilities and technical standards.Leading technical initiatives that enhance developer productivity, system observability, and platform resilience.Contributing to architectural decisions and establishing best practices for backend development within the organization.Analyzing system performance and data patterns to identify optimization opportunities and guide future platform investments.What You BringRequired Qualifications5+ years of professional software engineering experience, particularly in backend development.Strong proficiency in C# and .NET Core, with a solid understanding of modern framework features and performance optimization techniques.Production experience with Kubernetes and container orchestration within cloud environments (preferably Azure, AWS, or GCP).

Join Semperis and help us make a difference! We are dedicated to fostering a work environment where employees feel valued, supported, and empowered. By prioritizing purpose, personal growth, and work-life balance, we create a culture that inspires our team to excel. Recognized as one of America's Fastest-Growing Cybersecurity Companies by Inc. 5000, we are also proud recipients of the DUNS 100 Top Startup award and multiple Inc. Best Workplace accolades.Position Overview:We are on the lookout for a talented C# Developer with a minimum of 3 years of experience to enhance our Escalation team. In this pivotal role, you will act as the technical liaison between our Support and R&D departments, addressing intricate challenges in On-Premise environments. Your expertise in deep-dive investigations, a proactive troubleshooting approach, and the ability to implement effective code solutions within our core product will be essential.Key Responsibilities:In-Depth Investigation: Conduct thorough root cause analysis on escalated issues from the Support team.Code Management: Design and implement bug fixes and hotfixes using C#.Infrastructure Troubleshooting: Diagnose and resolve issues in Linux, Kubernetes, and OpenSearch environments.Complex Issue Resolution: Address sophisticated network, database, and protocol-related challenges, including WCF.Effective Communication: Collaborate closely with Support, SA, and CS teams, and engage directly with technical stakeholders when necessary.

We are seeking a talented and experienced Senior Frontend Developer to join our dynamic team at Gongio. As a key contributor, you will be responsible for creating and optimizing user-facing features, ensuring an exceptional user experience across our platforms. Collaborate closely with designers and backend developers to bring innovative solutions to life and enhance our products.

Join Tonkean, the pioneering platform that revolutionizes process management with total customization. Our process experience platform empowers you to build smart, personalized automations that seamlessly connect with every application and system your organization employs. By leveraging Tonkean, you enable employees to navigate their workflows more efficiently, automating mundane tasks and focusing on what truly matters. Our innovative solutions intelligently analyze, prioritize, and route unstructured requests from various sources while providing real-time tracking of action items. Moreover, Tonkean’s no-code approach ensures that every employee, regardless of their technical proficiency, can adopt and benefit from our solutions without the typical complexities of change management.At Tonkean, we understand that achieving compliance, efficiency, and operational excellence hinges on high process adoption rates. Thus, we strive to design processes that are user-friendly, address employee needs, and resolve challenges effectively. With Tonkean, you have a committed technology partner ready to break barriers and drive success.

About NexxenNexxen is a pioneering advertising technology platform that seamlessly connects advertisers, agencies, publishers, and broadcasters worldwide through innovative, data-driven solutions. Our comprehensive technology stack includes a demand-side platform (DSP) and a supply-side platform (SSP), with the Nexxen Data Platform at its core.Join Our TeamBecome a part of a dynamic team that is reshaping the advertising landscape with our creative and adaptable solutions. At Nexxen, we embrace a culture defined by the 3Cs: Customer Centric, Curious Mindset, and Collaborative with No Ego, encouraging our employees to hustle and commit to excellence.Your Safety MattersAt Nexxen, we prioritize the well-being of our employees. We are aware of increasing online scams and fraudulent job postings. Please note that we will never request payment as a condition of employment. If you encounter any suspicious messages or job postings, contact us at infosec@nexxen.com.Position OverviewAs a Senior Software Engineer, you will take ownership of our end-to-end development process, from design to production, while significantly contributing to platform infrastructure and architectural decisions. You will be instrumental in promoting best practices in system design, code quality, and AI-assisted development.Design and implement scalable backend services using Java (Spring Boot) and NestJS (Node.js/TypeScript).Develop RESTful and event-driven APIs, and create dependable systems for publisher management, bidding logic, reporting, and customer-facing dashboards.Build and maintain modern frontend applications using Angular (15+).

Join WalkMe as we revolutionize our cutting-edge runtime engine, enhancing the online experience for millions of users globally. Leveraging our proprietary AI technology, we are advancing the leading digital adoption platform by enabling real-time interaction with graphical user interfaces at a human level. We seek passionate individuals who are eager to push technology to its limits, innovate, and contribute to impactful products while collaborating with some of the brightest minds in the industry. If you are ready to be part of one of the fastest-growing startups, WalkMe is the place for you!

About Nexxen Nexxen is reshaping the advertising industry with data-driven technology. The company’s platform brings together a demand-side platform (DSP), supply-side platform (SSP), and the Nexxen Data Platform to help advertisers, agencies, publishers, and broadcasters use data and advanced TV in meaningful ways. Role Overview The Data Engineering team in Tel Aviv is looking for a Senior Software Engineer. This position focuses on building and improving the data platform that powers Nexxen’s core systems for processing, storing, and serving data. What You Will Do Own the full development cycle for key projects, from initial design through to production deployment, with an emphasis on efficiency and new ideas. Lead and mentor junior developers, guiding them through complex projects that directly affect the business. The team values proactive problem-solving and collaboration. A hands-on approach to research and development is encouraged. Working at Nexxen Nexxen’s culture centers on customer focus, curiosity, and teamwork without ego. Creativity, commitment, and a drive to innovate are recognized and valued. Employee Safety Nexxen is committed to employee well-being and warns against online scams. The company will never ask for payment as a condition of employment or promote questionable financial schemes. For any concerns about suspicious job postings or communications, contact infosec@nexxen.com to verify authenticity.

In today's digital landscape, managing cloud expenses is crucial.At Finout, we empower businesses to gain insights into their cloud spending, enabling them to make informed, strategic decisions swiftly. Our innovative solutions are trusted by industry leaders such as The New York Times, Wiz, Elastic, SiriusXM, and Lyft. With over $85 million raised from top-tier investors, we've expanded to a dynamic team of over 100 professionals in Tel Aviv and New York in just four years—and we're just getting started.If you're passionate about building impactful solutions, tackling real-world challenges, and thriving in a fast-paced environment, we want to hear from you!Key Responsibilities:Take ownership of enhancing and improving Finout’s core platform.Develop and maintain systems for collecting and processing metrics from client environments.Ensure system efficiency and maintain resilient infrastructure.Integrate popular SaaS platforms into Finout’s big data repository, including major cloud providers, Datadog, and Snowflake.Optimize Spark and Airflow processes for enhanced performance.Collaborate with various business units and engineering teams to contribute to data design and platform architecture.Address the challenges of testing and monitoring large-scale data pipelines.Qualifications:7+ years of experience in developing and managing large-scale, high-availability systems.Proficiency in Python (knowledge of Go is advantageous).Experience with cloud environments (preferably AWS) and big data technologies such as Spark, Airflow, S3, Snowflake, and EMR.Familiarity with metrics systems (e.g., Prometheus, cloud monitoring APIs) or time-series data is a significant plus.Self-motivated team player with excellent communication skills and a strong drive to solve large-scale challenges.Our ValuesAs a hybrid company with a grand vision and a startup spirit, we are excited to build the future of cloud infrastructure. If you share our passion for what we build and how we do it, let's connect!

Join the innovative engineering team at Chainalysis, where we tackle the most challenging technical issues and develop products that foster trust in cryptocurrencies. As a global entity with talented teams located in Denmark, the UK, Canada, the USA, and Israel, we are passionate about our impactful work and the exceptional collaboration within our teams. Our industry is evolving rapidly, and we are committed to delivering user-centric products backed by a robust and adaptable data platform that empowers us to meet these swift changes and add value for our clients.At Chainalysis, we are constructing the data platform for blockchain technology, cryptocurrency, and web3. We seek a Senior Software Engineer who will play a pivotal role in our mission, developing and scaling the APIs and data layers essential for our clients as they combat crime, assess risk, and strategize their business operations. Our engineers possess a profound understanding of cloud-native technologies, leveraging this expertise to enable our customers to expand their horizons within the cryptocurrency ecosystem.Currently, we are expanding our Hexagate team, focused on creating a high-performance product utilizing a diverse tech stack that includes real-time blockchain scanners and scalable data pipelines. This technology is designed to detect and analyze malicious activities on the blockchain, providing proactive alerts to safeguard funds in real-time.We invite enthusiastic candidates who are passionate about web3 and cryptocurrency to join our engineering team at our new office in Tel Aviv.Responsibilities:Design and implement highly performant and reliable cloud-native software solutions.Address complex technical challenges and ensure the functionality of intricate systems.Collaborate within a small, agile team that prioritizes high-quality code.Take ownership of new features from inception to deployment in production.Architect microservices, APIs, and data models to support diverse use cases in our offerings.Qualifications:Proven experience in backend engineering for cloud-native applications.Strong understanding of blockchain technologies and their applications.Experience in building scalable APIs and data architectures.Ability to work collaboratively in a fast-paced, dynamic environment.

Join WEKA, an innovative leader in AI and accelerated computing solutions, as we redefine the landscape of data storage and processing with our groundbreaking NeuralMesh™ technology. Our adaptive mesh storage system is designed to enhance performance and reliability, scaling with your organizational needs while maximizing GPU utilization and reducing innovation costs.As a rapidly growing company supported by top-tier venture capital and industry frontrunners, WEKA boasts over 140 patents and is trusted by more than 30% of Fortune 50 companies. Our commitment to customer success drives our collaborative, accountable, and bold team culture. If this resonates with you, we invite you to apply!About the RoleWe are on the lookout for a Senior Software Engineer to join our team in developing a next-generation platform that validates large-scale distributed systems. You will play a pivotal role in ensuring the correctness, performance, and resilience of the WEKA Data Platform across all layers.In this position, you will be directly involved in designing and building automated testing environments that simulate real-world conditions, including scale, concurrency, and failure scenarios. Your expertise will help us evolve our approach to ensuring reliability and correctness in modern infrastructure systems.This role is perfect for engineers with a solid background in distributed systems who thrive on solving complex technical challenges and are passionate about building tools that enhance quality, stability, and confidence at scale.

Who We AreHello! We are Carbyne, committed to transforming public safety through innovative technology. As the leading provider of emergency collaboration solutions, we are developing a state-of-the-art platform that enhances life-saving efforts via live video streaming, real-time chat, and accurate location tracking.Our advanced tools enable emergency response teams to act swiftly and intelligently, ensuring that assistance reaches those in distress as quickly as possible. With collaborations with industry giants like Amazon, Microsoft, and AT&T, we are creating groundbreaking solutions that serve over 400 million people globally.Are you ready to join us in making a positive impact? Let's make a difference together! About the RoleWe are in search of an experienced Senior Backend and Real-Time Software Engineer to take a pivotal role in the architecture, development, and maintenance of our sophisticated and mission-critical communication systems. You will be tasked with ensuring the delivery of reliable, scalable communication solutions that facilitate our rapid growth.What You'll Do:Design and develop highly available and resilient systems and deployments.Tackle complex challenges regarding resiliency, scalability, load, and performance at the system level.Work collaboratively with cross-functional teams to ensure smooth integration.Keep abreast of the latest VoIP technologies and trends.Contribute significantly to the scalability and reliability of our platform.

Unlock your potential with a leader in performance-driven advertising!As a Senior Software Engineer at Taboola, you will be instrumental in shaping one of our newest strategic growth areas. Your expertise will empower advertisers and partners to autonomously build, optimize, and scale their campaigns effectively.Our Technology Stack: Java, JavaScript, TypeScript, Python, Reactive, Spark, Kafka, Hadoop, Cassandra, Vertica, Elasticsearch, MySQL, Memcached, HDFS, Iceberg, BigQuery, Druid, Kusto, Docker, Kubernetes, Linux, Prometheus, Grafana, Airflow...Generative AI Tools: Cursor, Claude, GitHub Copilot, Langfuse, and more.

Who We Are DoubleVerify, a leader in big data analytics, was founded in Israel and is publicly traded (Stock: NYSE: DV). We monitor and analyze an astounding tens of billions of advertisements daily for the world's premier brands. Our operations are on a grand scale, processing over 100 billion events each day and exceeding 1 million requests per second during peak times. We ensure that ads are free from fraud, displayed alongside relevant content, targeted to the appropriate geographic locations, and we measure viewability and user engagement throughout the ad lifecycle. With our headquarters in New York City and research and development centers located in Tel Aviv, New York, Finland, Berlin, Belgium, and San Diego, we thrive in a dynamic and fast-paced environment filled with challenges. If you're passionate about working in a large-scale environment and eager to contribute to building impactful products for the industry and the web, we would love to have you on our team.

About Oasis SecurityAt Oasis Security, we are revolutionizing the way enterprises handle access management in the era of artificial intelligence. As organizations adopt AI agents, they face unseen access risks, and the traditional tools have not been designed to address these challenges. Oasis aims to transform this landscape. Supported by leading investors such as Sequoia, Accel, and Craft Ventures, we are trusted by numerous Fortune 500 companies including S&P Global, Mars, and Nationwide. Our journey has just begun.Why Oasis, why now?The access management sector is evolving rapidly, and Oasis is at the forefront. The challenges we tackle are complex, the company is expanding swiftly, and you have the opportunity to influence both our product and team from an early stage.Why join us?Shape the future: Contribute to securing NHI and Agentic AI, a domain that is redefining enterprise operations.Tackle massive scale: Engage with distributed systems and architectures that manage billions of identities and interactions.Ownership & impact: As a senior engineer, you will oversee projects from inception to completion, impacting both technical strategy and product results.Cutting-edge stack: Work with advanced technologies, from cloud-native systems to AI infrastructure and coding agents, shaping the engineering landscape of tomorrow.

Axon is hiring a Senior Software Engineer for the Tel Aviv Yafo office. This position focuses on building technology that supports public safety and community trust. The work involves collaborating with a skilled team to deliver projects with real-world impact. Role overview This role centers on designing, developing, and maintaining scalable applications. The Senior Software Engineer will use deep software development experience to solve complex problems and support the company's mission. What you will do Design and develop scalable software applications Maintain and improve existing systems Work closely with cross-functional teams to deliver solutions Requirements Extensive experience in software development Strong problem-solving skills Interest in technology and team collaboration

Join Base44 as a skilled Fullstack Developer and be part of our transformative journey in redefining product development. You will play a crucial role in a dynamic, collaborative team, taking full ownership of features from sleek user interfaces to the APIs that drive them. If you're an enthusiastic engineer who enjoys tackling complex challenges with clean, elegant code while crafting delightful user experiences, we want to hear from you.Quick OverviewWe are in search of a Fullstack Developer with a strong focus on frontend development to create end-to-end features for our AI platform.Your passion for leveraging AI to innovate our product and enhance your development process will be key.This role operates within a startup-mode environment.Key ResponsibilitiesTake ownership of end-to-end features, designing and building scalable, high-quality frontends alongside the backend services that support them.Address challenging technical problems with creative and efficient solutions, contributing to a cutting-edge, AI-powered platform.Deploy your code to millions of users, developing fast, beautiful, and intuitive interfaces that make a real difference every day.Promote clean architecture, maintainable UI components, and performance optimization.Enhance your expertise by learning from exceptional engineers and expanding your skills across both frontend and backend domains.Shape our engineering culture through internal knowledge sharing and, if interested, contribute to the open-source community.

Unlock your potential by becoming part of a leading performance-oriented advertising company!In the role of Senior Backend Engineer, you will play a pivotal role in the development and optimization of our fundamental infrastructure that manages Real-Time Bidding (RTB) requests on a large scale, which is one of the company's primary revenue-generating operations.To excel in this position, you should possess:Over 5 years of programming experience in Java or a similar Object-Oriented language (preferably Java 8+ with Spring)A solid understanding of production systems and web product architectureA proactive approach to tackling unknown challengesA genuine passion for problem-solving and close collaboration with business unitsExperience with both SQL and NoSQL databasesA Bachelor’s degree in Computer Science or a related fieldA strong willingness to work intensively to achieve rapid results in unfamiliar areasA product-oriented mindsetA pragmatic approach to decision-making, avoiding analysis paralysisStrong analytical capabilitiesBonus points if you bring:Experience in developing large-scale distributed systemsFamiliarity with Kafka, Docker, and KubernetesA deep understanding of web systems (API / REST / NGINX)Experience with various SQL and NoSQL databases (such as MySQL, Vertica, Cassandra)Proficiency in Big Data tools (like BQ, Zeppelin, etc.)Knowledge of algorithms, data mining, and machine learningYour Contribution:As a Senior Backend Engineer, your contributions will include:Building one of the largest real-time big data operations globally, processing over 40TB of new data dailyOwning the entire lifecycle of our frontend and backend services — from design to deployment and maintenanceCollaborating with a team of exceptional software engineersImpacting how billions of people discover content onlineDeveloping solutions at an unprecedented scale, handling hundreds of thousands of requests per secondEngaging in innovative projects that will drive future growth at TaboolaRecent Achievements by our Software Developers:Creating a unique data pipeline for managing RTB requests at scaleDesigning an algorithmic model to predict the value of Real-Time impressions for Taboola