.Net Developer
Location: LT, VL, Vilnius
Department: All
Employment type: Full-time
Required experience: Mid-Senior level
Industry: Information Technology and Services
Description: Adform is the best resourced European display ad tech company, with around 350 people in 15 European countries and US. We offer a leading platform focused on programmatic advertising with key competences in ad serving, optimization, data management and rich media. Our platform is built on proprietary technology and is constantly updated with new industry leading features.Adform's Real-time bidding system operates at a big scale and grows rapidly: from 0 qps two years ago to 200K qps today. Building and improving such system requires a broad range of engineering skills. Our developers work with a diverse set of technologies: .net, scala, java script, cassandra, aerospike, hadoop, puppet - to name a few.In Real-time bidding products program we are working on a company's strategic and core product: Demand-side platform, Private marketplace, Adserving, Dynamic content optimizations, Bidding optimization pipline. Currently we are starting to build a new offerring so we are strengthening our development team and we are looking for brilliant mind developer (regular or higher) to join our team and help to overcome challenges.What are you going to do?You will be working in our Demand-side Platform development team on following products.Real Time BiddingRTB is high load bidding engine handling up to 200K requests/s, working close to real-time with a time box of 100 ms to handle one request (including transportation). We work with a wide range of technologies in this team, Cassandra, Aerospike, .NET, MS SQL,  JavaScript, Puppet – to name a few.It’s a platform where ad inventory is bought and sold on a per-impression basis, via programmatic instantaneous auction, similar to financial markets. With real-time bidding, advertising buyers bid on an impression and, if the bid is won, the buyer’s ad is instantly displayed on the publisher’s site. Real time bidding lets advertisers manage and optimize ads from multiple ad-networks by granting the user access to a multitude of different networks, allowing them to create and launch advertising campaigns, prioritize networks and allocate backfill percentagesPrivate MarketplaceHighly scalable, low latency and fault tolerant ad serving and private marketplace platforms that handles more than 100k req/s and provides targeting, tracking, content optimization and programmatic trading capabilities both for agencies and publishers. This part of the solution allows web site owners to sell their audience to advertisers through real time bidding engine. No time waste on “phone sales” and more flexibility for inventory access.Your responsibilities would be:- Own the full stack: from storage to service to frontend- Build scalable high load systems using .net, scala, aerospike, cassandra- Build tools using java script, angular, backbone, nodejs- Build monitoring system for product using logstash, graphite, zabbix- Focus on value delivery for customer- Build beautiful tools: the right one for the right job using the right technology- Design, build, deploy, monitor and maintain your product- Collaborate with, learn from, and mentor teammates- Work closely with other teams to determine interdependancie- Optimizing the efficiency of development workflows- Work closely with, and incorporate feedback from product management, client support team, ux designers and it infrastrucure team
Requirements: You must be comfortable with describing yourself as:- Having agile mindset, fast to adapt to changes and feeling comfortable with it- Good at communication inside and outside the team- Open and informal- Good at written and verbal EnglishOur requirements:- Proven experience working with highly loaded systems – >100k requests per second- Has proven experience in scaling out solutions across geographically distributed datacenters- Worked with a service platform built with Open Source Software- Expert knowledge in programing with C#, C++ or Java- Expert knowledge in working with distributed NoSQL databases: Cassandra, Aerospike, …- Knowledge of Linux: the internals of the kernel, the intricacies of userland, and the ins and outs of packaging- High availability, high performance, high security, and where each needs to be applied- System automation with scripting languages- Out of the box solutions for problems most haven’t encountered
Benefits: Are you curious what do we offer you?- Creative, challenging and interesting projects- Fast growing product- Experienced and professional team- Dynamic, inspiring and international environment- Creative approach - we don’t believe in  “one size fits all”- Informal style of leadership and communication- Fun things: leisure zone, breakfast services, snacks in the office, lot of team building events and others- A lot of servers, complex infrastructure and challenging product- Best workstation and tools to work with- Possibilities to learn (conferences, trainings) and work with experts from different countries (offices around the world)- Possibilities to make us better
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