Ssr Software Engineer

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.

**Requirements**:
**Education & Language**:

- Advanced student or graduate in Computer Science, Software Engineering, or related fields (mandatory).
- Advanced English — fluent communication with global 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 Stack**:
**Backend**: Python, Flask, FastAPI, Celery
**Infra**: AWS, Docker, Kubernetes
**ORM / DB**: SQLAlchemy, Boto3, relational databases
**Frontend (optional)**: React
**Methodology**: CI/CD, developer-centric workflows, continuous deployment
**Company Industry**:
AdTech / 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.

**Benefits**:

- 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