Senior Backend Engineer - Data Science Team

About Teads

Teads is the omnichannel outcomes platform for the open internet, driving full-funnel results for marketers across premium media. With a focus on meaningful business outcomes for branding and performance objectives, the combined company ensures value is driven with every media dollar by leveraging predictive AI technology to connect quality media, beautiful brand creative, and context-driven addressability and measurement. One of the most scaled advertising platforms on the open internet, Teads is directly partnered with more than 10,000 publishers and 20,000 advertisers globally. The company is headquartered in New York, with a global team of nearly 1,800 people in 30+ countries.

For more information, visit www.teads.com.

We are seeking a senior software engineer to be embedded with our data science team. You will turn experiments into reliable, high-performance production services, build the data and inference paths that power our models, and ensure ML delivers measurable impact at scale. This role requires excellent coding skills and a strong grasp of data science concepts, trade-offs, and evaluation.

Responsibilities:

• Translate notebooks and prototypes into robust, maintainable production services for training, inference, and evaluation.
• Design, implement, and optimize services and data flows for batch and real-time ML use cases, focusing on throughput, latency, resiliency, and cost.
• Collaborate closely with data scientists on problem framing, feature strategies, experiment design, and metrics; ensure rigor, reproducibility, and traceability across the lifecycle.
• Build clear, well-documented APIs for model-powered features; handle schema evolution and backward compatibility.
• Establish strong testing and reliability practices: unit, integration, performance, and end-to-end tests; automate benchmarks and regression checks for both code and models.
• Partner with the AI platform team to leverage shared infrastructure and CI/CD; provide feedback to evolve platform capabilities based on product needs.
• Drive observability and incident response for model-backed services: logging, metrics, tracing, alerting.
• Contribute to architectural decisions for scalable, distributed services that support data-heavy and low-latency applications.

What You Will Bring to the Team:

• 5+ years of professional software development experience focused on backend/services and distributed systems.
• Mandatory: strong Python skills for production-grade code (notebooks-to-services, packaging, testing).
• Strongly preferred (not mandatory): very good Scala skills.
• Solid system and API design fundamentals; ability to reason about consistency, concurrency, throughput, and latency.
• Practical understanding of core data science and ML concepts: supervised/unsupervised learning, feature engineering trade-offs, cross-validation, leakage prevention, evaluation metrics and experiment design.
• Experience shipping and operating model-backed services in production, including release management, observability, performance tuning, and troubleshooting.
• Commitment to high-quality code: clear abstractions, defensive programming, and comprehensive tests.
• Excellent communication and collaboration skills; you can explain trade-offs, align stakeholders, and help bridge research and production.

Nice to have:

• Experience with real-time inference and low-latency serving, including GPU-aware performance tuning.
• Background in ranking, recommendations, forecasting, NLP, or fraud/anomaly detection.

If you love partnering with data scientists, care deeply about production quality, and want to deliver ML that works reliably at scale, we’d love to talk.

We care about you:

• Security & Savings: Attractive package providing financial peace of mind, including competitive compensation, profit-sharing, daily meal vouchers (Swile), family health insurance (Alan).
• Career Development: Continuous investment in our employees' skills: in-house and external training, tech conference opportunities, internal mobility (individual contributor or management career ladder).
• Life Balance: A well-balanced work-life for our employees is one of our top priorities: 35+ days off per year, hybrid work (2 days remote work per week), fully covered parental leave.
• Wellness: Prioritizing employee well-being through premium work equipment, enjoyable work environment (work-life balance, team building events, summits), remote work subsidy, promoting Diversity & Inclusion with internal & external initiatives (women speaking groups, dedicated school partnerships), dedicated charitable time and sustainability actions (Eco Tree, subsidy for eco-mobility).

Please submit your CV in English.

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Life at Teads

At Teads, we don’t just offer new roles - we blend creativity, technology, and data to shape the future of media. You’ll work with smart humans, meaningful brands, and cool tools, all while helping redefine how advertising works in a world that demands more transparency, better insights, and smarter strategies.

As a Teadster, you’ll play a critical role in shaping our future success in the region. Here’s why Teads stands out:

• We've merged two open internet category leaders—Outbrain and Teads—to create the ‘new’ Teads, a unified omnichannel platform that drives results from branding to performance across all screens, including CTV, mobile, and web.
• As part of our team, you’ll thrive in a collaborative and forward-thinking environment that fosters innovation, creative problem-solving, and continuous learning.
• Teads is committed to your success, offering the support, tools, and development opportunities you need to excel in your role.

Our company culture is welcoming, dynamic, diverse, global, and built on top performance.

Teads is an equal employment opportunity employer and committed to diversity and inclusion at all stages of recruitment and employment.

Our team is made up of individuals who are approachable, resourceful, passionate, and proactive. We foster a sense of belonging through our Employee Resource Groups – employee-led groups in which we debate topics and drive change: environmental, women empowerment, charitable initiatives to diversity, equity, and inclusion, you’ll be able to share your passions with likeminded people.