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Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Senior Backend Engineer Id68432 - **Company:** Agileengine, Llc. - **Location:** Barcelona, Spain (Remote available) - **Contract:** Permanent contract - **Skills:** Java (Programming Language), .NET Framework, Artificial Intelligence, Amazon Web Services, Databases, Extract Transform Load (ETL), Data Structures, Distributed Systems, Django Web Framework, Fault Tolerance, Python (Programming Language), PostgreSQL, Node.Js, Software Engineering, Systems Architecture, Web Services, Backend, Kubernetes - **Published:** August 8, 2026 - **Apply:** https://www.buscojobs.com.es/senior-backend-engineer-id-68432-en-barcelona-ID-366012286 ## About the Role 5 years of software development experience building scalable systems using backend programming languages/frameworks (e.g. Java, .NET, Python, Node.js, etc); Deep understanding of computer science fundamentals, including algorithms, data structures, networking, and databases ; Proven experience designing and scaling distributed systems with a focus on performance, observability, and fault tolerance; Strong architectural instincts and the ability to make high-leverage technical decisions that impact multiple teams and systems; Demonstrated ability to influence and mentor senior engineers, guide teams through ambiguity, and elevate engineering practices across the board; Exceptional ownership mindset; Availability to work till 1pm EST (till 8 pm Kyiv time); Excellent communication and cross-functional collaboration skills; Comfortable operating in a fast-paced, high-autonomy, product-driven environment; Experience with e-commerce and catalog management is preferred; Familiarity with Python, Django, Kubernetes, PostgreSQL, and AWS is strongly preferred, but deep expertise in analogous systems and a willingness to learn are welcome; NICE TO HAVES Strong experience with complex ETL flows and high-throughput systems is highly preferred; Experience with AdTech (This may include experience with DSPs, SSPs, ad exchanges, affiliate programs, Prebid.js, Prebid Server, Google Ad Manager, Amazon UAM/TAM, OpenRTB, identity and addressability solutions, as well as ad operations workflows.) ## Description AgileEngine is an Inc. **** 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 USIf 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 ROLEWe are looking for aSenior Backend Engineerto architect and build the core systems of a next-generation advertising 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 DOArchitect, 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 HAVES5 years of software development experience building scalable systems using backend programming languages/frameworks(e.g. Java, .NET, Python, Node.js, etc);Deep understanding ofcomputer science fundamentals, including algorithms, data structures, networking, and databases;Proven experience designing and scalingdistributed systemswith a focus on performance, observability, and fault tolerance;Strong architectural instincts and the ability to make high-leverage technical decisions that impact multiple teams and systems;Demonstrated ability to influence and mentor senior engineers, guide teams through ambiguity, and elevate engineering practices across the board;Exceptional ownership mindset;Availability to work till 1pm EST (till 8 pm Kyiv time);Excellent communication and cross-functional collaboration skills;Comfortable operating in a fast-paced, high-autonomy, product-driven environment;Experience with e-commerce and catalog management is preferred;Familiarity withPython, Django, Kubernetes, PostgreSQL, and AWSis strongly preferred, but deep expertise in analogous systems and a willingness to learn are welcome;NICE TO HAVESStrong experience with complex ETL flows and high-throughput systems is highly preferred;Experience with AdTech (This may include experience with DSPs, SSPs, ad exchanges, affiliate programs, Prebid.js, Prebid Server, Google Ad Manager, Amazon UAM/TAM, OpenRTB, identity and addressability solutions, as well as ad operations workflows.)PERKS AND BENEFITSGrowth without limits: build your skills through mentorship, internal TechTalks, challenging projects, and a dedicated annual learning budgetCompetitive compensation: get recognition that reflects your skills and impact, with regular performance and compensation reviewsFlexibility: work 100% remotely with flexible hours that support focus, autonomy, and a healthy work rhythmMeaningful, modern projects: build impactful products using modern technologies alongside global teams and leading brandsCollaborative culture: join a supportive environment with zero micromanagement where ideas are welcomed and contributions are recognizedWell-being & support: access local well-being programs and people-focused support tailored to your locationMeet Our Recruitment ProcessEach step helps us understand your skills and overall fit.If it's a match, you'll receive an offer.AgileEngine is an Inc. **** 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 USIf 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 ROLEWe are looking for aSenior Backend Engineerto architect and build the core systems of a next-generation advertising 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 DOArchitect, 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 HAVES5 years of software development experience building scalable systems using backend programming languages/frameworks(e.g. Java, .NET, Python, Node.js, etc);Deep understanding ofcomputer science fundamentals, including algorithms, data structures, networking, and databases;Proven experience designing and scalingdistributed systemswith a focus on performance, observability, and fault tolerance;Strong architectural instincts and the ability to make high-leverage technical decisions that impact multiple teams and systems;Demonstrated ability to influence and mentor senior engineers, guide teams through ambiguity, and elevate engineering practices across the board;Exceptional ownership mindset;Availability to work till 1pm EST (till 8 pm Kyiv time);Excellent communication and cross-functional collaboration skills;Comfortable operating in a fast-paced, high-autonomy, product-driven environment;Experience with e-commerce and catalog management is preferred;Familiarity withPython, Django, Kubernetes, PostgreSQL, and AWSis strongly preferred, but deep expertise in analogous systems and a willingness to learn are welcome;NICE TO HAVESStrong experience with complex ETL flows and high-throughput systems is highly preferred;Experience with AdTech (This may include experience with DSPs, SSPs, ad exchanges, affiliate programs, Prebid.js, Prebid Server, Google Ad Manager, Amazon UAM/TAM, OpenRTB, identity and addressability solutions, as well as ad operations workflows.)PERKS AND BENEFITSGrowth without limits: build your skills through mentorship, internal TechTalks, challenging projects, and a dedicated annual learning budgetCompetitive compensation: get recognition that reflects your skills and impact, with regular performance and compensation reviewsFlexibility: work 100% remotely with flexible hours that support focus, autonomy, and a healthy work rhythmMeaningful, modern projects: build impactful products using modern technologies alongside global teams and leading brandsCollaborative culture: join a supportive environment with zero micromanagement where ideas are welcomed and contributions are recognizedWell-being & support: access local well-being programs and people-focused support tailored to your locationMeet Our Recruitment ProcessEach step helps us understand your skills and overall fit.If it's a match, you'll receive an offer.#J-*****-Ljbffr ## Related Videos - [Developing the Backend with Stefan Lingler, CTO at Shpock](https://www.wearedevelopers.com/videos/100360-developing-the-backend-with-stefan-lingler-cto-at-shpock) - [Stop using Node.js like in 2020! 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