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We are looking for a Software Engineer II/III (Backend Focus) to join our client's Social Engineering team, responsible for designing, 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, microservices, cloud environments, and large-scale performance challenges.The Social team works primarily with Python and its modern ecosystem, building mission-critical systems across Innovid's global ad-tech platform.Responsibilities Design and develop critical backend services, infrastructure components, APIs, and core modules.
Build and maintain microservices on AWS, ensuring scalability, resiliency, and high availability.
Develop systems capable of supporting billions of daily transactions in distributed environments.
Ensure production readiness, including performance, observability, stability, and incident ownership.
Lead software design efforts and contribute to architectural decisions.
Participate in end-to-end development: design, coding, testing, deployment, and monitoring.
Collaborate closely with Product, Engineering Managers, and cross-functional R&D; teams.
Influence engineering standards, best practices, and overall technical excellence.
Mentor teammates and contribute to a developer-centric culture of quality and ownership.RequirementsEducation & Language Estudiantes avanzados/as o graduados/as en Ingeniería en Sistemas, Computación, Electrónica o Informática / Licenciatura en computación.
(Excluyente)
Advanced English — fluent communication with integral teams (mandatory).




Technical Experience 2+ years of software development experience for level II, or 4–5+ years for level III.
Experience building SaaS, cloud-based products.
Strong experience with microservices and distributed architectures.
Hands-on experience with Linux/Mac terminal in production environments.
Strong command of Git and modern development workflows.
Experience with at least one modern backend language: Python, Java, Scala, Kotlin, PHP, JavaScript/Node.js, or React.
Excellent analytical skills and ability to solve complex engineering problems.
Strong communication skills in multidisciplinary teams.Nice to Have Experience with Flask, FastAPI, Celery, SQLAlchemy, or Boto3.
Experience with AWS, Docker, Kubernetes.
Background in full-stack development with React.
Open-source contributions.
Tech StackBackend: Python, Flask, FastAPI, Celery Infra: AWS, Docker, Kubernetes ORM / DB: SQLAlchemy, Boto3, relational databases Frontend (optional): React Methodology: CI/CD, developer-centric workflows, continuous deploymentCompany IndustryAdTech / Video / Connected TV (CTV)Innovid enables global brands to create, deliver, measure, and optimize interactive and dynamic video experiences across CTV, mobile apps, web, and social platforms.BenefitsMonthly Inflation updates (according to PC) Lunch CreditOSDE 410 as medical assuranceEnglish lessonsGym coverage (SportClub 90% discount)Internet coverage (+35k)1 extra paid month for primary & secondary birthing caregiversLearning & Development - Tools and Training Hybrid & flexible working model - nice offices in CABA with endless snacks & beveragesHigh visibility roles with a tremendous amount of growth potential Global team and cross-company collaboration, unlike anywhere elseEsta posición es híbrida en Parque Chas (Excluyente)

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📌 Software Engineer (Level 2 & 3) (Buenos Aires)
🏢 Workana
📍 Buenos Aires