Senior Backend Engineer

This is a 100% remote, coding position, not a managerial position.

Summary & Duties

As a Senior Developer in our product technology team, you will play a key role in developing our platform, taking part in architectural decisions for the future of our software. Your responsibilities will span the entire product lifecycle, and will involve not only software science but data structures & algorithms, mathematics and AI.

• Develop a distributed platform where high availability and scalability is key.
• Employ advanced Computer Science concepts in your daily job such as: algorithm and system design, cloud architecture, GenAI LLM and applied math.
• Be part of a unit where technology is valued: CD/CI, DevOps, flat hierarchy, learning and training opportunities and a culture of innovation.
• Your work will be used in production to serve millions of requests per second, with response time measured in milliseconds. Your team deploys multiple times a day, with best of the grade code standards and review practices. Your code will be deployed across tens to hundreds of cloud machines over distributed cloud regions over the globe.
• Be a mentor to your team helping improve the technical know-how on technology, methods and practices.
• Participate in code reviews with your peers.
• Drive internal proof of concept, innovation and migration projects
• Participate in analysis and bug fixing of the ongoing issues presented by our clients represented by operations, performance, supply and partnerships teams.
• Be an active developer and coder in our team.

Requirements

• At least 5 years of experience as backend developer.
• Strong knowledge of modern Javascript and NodeJS
• Strong linux administration skills: Shell scripting, unix tooling, upstart, etc.
• Fluent with command line Git commands
• Proficiency in Spanish (native level), both oral and written, as this is the language used for interaction with the team.
• Fluent in English, both oral and written, as this is the language used for interaction with most of the stakeholders and the business language for all our tools and documentation.

Optional requirements

• Experience working in a distributed team
• Familiarity with Go is valued. We use Go for less than 25% of our coding tasks and we will train you if you lack previous experience with the language.
• AWS: In particular EC2, S3, Route53, Elastic Transcoder, load balancing, and CloudFront
• Familiarity with distributed computing tools such as queues, load balancers, fail over, automatic configuration and optimization.
• SQL: In particular GCP BigQuery dialect

Searched for skills

• Knowledge of computer science concepts related to algorithm design and analysis, profiling, performance tuning, data structures.
• Knowledge of system administration, kernel tuning, TCP/IP internals and network filesystems
• Knowledge of database concepts, Big data, SQL language, NoSQL, performance and tuning
• Knowledge of a broad range of computer languages including functional languages such as Clojure, Erlang or Skala, dynamic languages such as Python, Ruby or Lua and low level system languages such as C, C++, Zig or Rust
• Clear communication and facility to express complex ideas in english
• Exposure to industry standards in coding best practices including not not limited to: style guides, programming best practices, code verification and analysis, patterns and anti patterns, software estimation, testing and integration, AB and canary tests, and software design.
• Knowledge of statistical and mathematical concepts as it applies to our tasks: probability distributions, error estimation and confidence intervals, percentiles, averages, means and medians, etc.
• Good writing skills, able to write down his/her ideas in english. Experience with knowledge management tools and with project management concepts such as roadmap, deliveries, project plan, task breakdown structure, and agile

Other perks of the job

• Remote work: our team is living all over Spain but you are welcome to use our office in the center of Madrid
• Flexible working hours
• To be part of a small team with direct impact in the final product
• Using state of the art technologies
• Educational resources
• Creative Fridays: one day every two weeks to work on your own ideas

About mediasmart

Mediasmart is part of the Affle group - a global adtech company that completed its successful IPO in India in 2019 and has been growing profitably since. Affle group has been in the adtech/martech business for over 15 years and runs multiple ad platform businesses including Appnext, MAAS, mDMP, Jampp, RevX, Vizury, Youappi in addition to mediasmart.

Some of the key investors in Affle Holdings include Microsoft and D2C (JV between NTT DoCoMo & Dentsu).

At mediasmart, our mission is to allow advertisers to effectively reach audiences across their digital journeys in real time, while maximizing engagement with campaigns and their incremental value to advertisers. mediasmart was one of the first players to enter the programmatic mobile ecosystem and to date our proprietary technology stack includes a DSP, DMP & Ad-Server, as well as direct connections to more than 30 ad exchanges where we buy display, video and native ads on mobile apps, Connected TVs, DOOH and desktop.The mediasmart business is headquartered in

Spain having fast growing global teams across APAC, LATAM in addition to Europe.Our culture and values

• Be a generous team player. One that helps others succeed and celebrate their success.
• Love curiosity. Keep learning and stay relevant.
• It’s a team effort. Collaborate and cooperate to build a smart company.
• Go farther. Be an example for others. Set the bar.
• Love what we do. Love our work with passion and respect.
• Do good and do well. Our work matters.

We work hard and never forget to have fun in the process. Absolutely devoted to our customers and to building the best mobile advertising company out there, our passion shines through everything we do.