Sr Software Engineer

We are looking for a Senior Software Engineer (Backend Focus) to join one of our clients' team, responsible for building and scaling high-load backend systems that process billions of transactions per day. This is a direct-hire role within a global engineering organization of 900+ people, collaborating with teams in the US, Israel, and the UK. You will work on end-to-end development, modern architectures, continuous deployments, and real large-scale performance challenges. Responsibilities Design and develop backend services, modules, and products for large-scale environments. Build systems capable of serving billions of daily transactions with a strong focus on performance, resiliency, and scalability. Participate in architectural design and propose structural improvements. Deploy code to production continuously, ensuring observability and stability. Lead end-to-end initiatives (design, development, testing, deployment, monitoring). Collaborate with Product to define and deliver new features. Mentor junior engineers and provide technical guidance across R&D teams. Contribute to development standards, best practices, and cross-team collaboration globally. Education & Language Advanced student or graduate of Computer Science, Software Engineering, or similar (mandatory). Advanced English — able to communicate fluently with global teams (mandatory). Technical Experience 5+ years of backend experience in dynamic, high-complexity environments. Strong hands-on experience with microservices, REST APIs, cloud, and distributed architecture. Proven experience working on SaaS products or large-scale systems. Experience with Linux in production environments. Solid background in performance optimization, debugging, and high-scale databases. Experience with Git, CI/CD pipelines, and modern development workflows. Demonstrated ability to lead technical initiatives and mentor other engineers. Programming Languages (one or more required) Java, Scala, Python, PHP, or JavaScript (Angular, React, Node.js). Nice to Have Experience with Docker, Kubernetes, or container orchestration. Experience with React, Typescript, or modern frontend. Open-source contributions. Tech Stack Backend: Java + Spring, Python, Scala + Play, Kotlin, Kafka Frontend: React, Typescript Infrastructure: Kubernetes, Docker, Snowflake Methodology: CI/CD, modern dev workflows, global team collaboration Monthly Inflation updates (according to PC) Lunch Credit OSDE 410 as medical assurance English lessons Gym coverage (SportClub 90% discount) Internet coverage (+35k) 1 extra paid month for primary & secondary birthing caregivers Learning & Development - Tools and Training Hybrid & flexible working model - nice offices in CABA with endless snacks & beverages High visibility roles with a tremendous amount of growth potential Global team and cross-company collaboration, unlike anywhere else