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May 6, 2026

Backend Engineer (AdTech) ID52365

Senior • Remote

4,300 - 6,400 USD

Krakow, Poland

AgileEngine is an Inc. 5000 company that creates award-winning software for Fortune 500 brands and trailblazing startups across 17+ industries. We rank among the leaders in areas like application development and AI/ML, and our people-first culture has earned us multiple Best Place to Work awards.

Why join us

If you're looking for a place to grow, make an impact, and work with people who care, we'd love to meet you! :)

About the role

We are looking for a Senior Backend Engineer to architect and build the core systems of a next-generation AdTech platform that embeds products directly into visual experiences. You will design high-throughput, low-latency services for campaign delivery, targeting, attribution, and partner integrations using Python, Django, Kubernetes, and AWS. This is an early-stage initiative where senior engineers define the technical direction and system architecture from the ground up.

What you will do

  • Architect, build, and evolve core systems for the Ads platform;

  • Design APIs and services supporting campaign management, targeting, delivery, attribution, and reporting;

  • Build and optimize high-throughput, low-latency systems processing large volumes of events and data;

  • Own critical systems end-to-end, including design, implementation, deployment, monitoring, and ongoing improvements;

  • Drive architectural decisions and establish patterns that support scalability, reliability, and developer productivity;

  • Collaborate closely with product, data, and partner teams to translate business requirements into robust technical solutions;

  • Provide technical leadership through design reviews, system discussions, and mentoring other engineers;

  • Contribute to engineering best practices, documentation, and long-term platform vision;

  • Participate in hiring and help grow a strong, high-performing team.

Must haves

  • 3–4 years of software development experience building scalable systems;

  • Experience with AdTech;

  • Strong understanding of computer science fundamentals (algorithms, data structures, networking, databases);

  • Proven experience designing and scaling distributed systems focusing on performance, observability, and fault tolerance;

  • Experience with Python / Django, or other backend programming languages;

  • Experience with Kubernetes, PostgreSQL, and AWS;

  • Strong architectural instincts and ability to make high-impact technical decisions;

  • Ability to mentor engineers and guide teams through ambiguity;

  • Strong ownership mindset with ability to drive initiatives and deliver impact;

  • Excellent communication and cross-functional collaboration skills;

  • Comfort working in a fast-paced, high-autonomy, product-driven environment;

  • Upper-intermediate English level.

Nice to haves

  • Experience with e-commerce and catalog management;

  • Familiarity with Python, Django, Kubernetes, PostgreSQL, AWS or similar technologies;

  • Strong experience with complex ETL flows and high-throughput systems.

The benefits of joining us

  • Professional growth

Accelerate your professional journey with mentorship, TechTalks, and personalized growth roadmaps

  • Competitive compensation

We match your ever-growing skills, talent, and contributions with competitive USD-based compensation and budgets for education, fitness, and team activities

  • A selection of exciting projects

Join projects with modern solutions development and top-tier clients that include Fortune 500 enterprises and leading product brands

  • Flextime

Tailor your schedule for an optimal work-life balance, by having the options of working from home and going to the office – whatever makes you the happiest and most productive.



Meet Our Recruitment Process

Asynchronous stage – An automated, self-paced track that helps us move faster and give you quicker feedback:

  • Short online form to confirm basic requirements

  • 30–60 minute skills assessment via Codility – a platform founded in Poland that helps us provide quicker feedback and streamline this stage of the process.

  • 5-minute introduction video

Synchronous stage – Live interviews

  • Technical interview with our engineering team (scheduled at your convenience)

  • Final interview with your future teammates

If it’s a match — you’ll get an offer!