Senior Software Engineer (m/f/d)

About Kayzen

Kayzen is the future of mobile marketing — building software that allows mobile app developers to connect with their users. 

We are a B2B SaaS platform that allows companies to run mobile programmatic marketing in-house.

Programmatic marketing, put simply, is the process of automating the buying and selling of digital ads in real-time. Programmatic in-housing takes this one step further by allowing advertisers to fully own the technology stack and skills required in this process.

Programmatic in-house is still in its early days when it comes to the mobile advertising market. This is where we have an impact!

You will be part of a talented, carefully selected, diverse and globally distributed engineering team, customer success, data science, design, product and more. 

We are highly motivated and aligned in our quest to disrupt the multi-billion dollar ad-tech industry.

We would like you to be part of our journey, as our Senior Software Engineer (m/f/d).

The Team 

The Platform Engineering team owns Real-time bidding (RTB) platform, a Real-time budget system, Real-time event processing, Stream data processing engine and multiple other complex large-scale distributed components and data pipelines. We work closely with data scientists, data analysts, product and business teams.

We are responsible for some of the most technically challenging work like -

• Handling ~2 Million Req/sec in sub-millisecond latency

• Handing & managing ~Petabytes of data

• Managing distributed systems deployed across multiple data centers

• Optimizing JVM and Linux kernel for optimal performance

• Managing our own data center spread across the globe consisting of thousand of powerful servers

• Working on some of the most challenging problems of Ad-Tech

Sounds interesting. Isn't it?

Responsibilities

• Designing, coding, deploying & maintaining highly scalable software components

• Dive deep into any part of the stack and low-level systems, as well as design broad distributed system interaction

• Design and develop optimal data pipeline architecture for large-scale data volumes.

• Assemble large, complex data sets that meet functional / non-functional business requirements.

• Identify, design, and implement internal process improvements: automating manual processes, optimizing data delivery, re-designing system for greater scalability, etc.

• Build the system required for optimal extraction, transformation, and loading of data from a wide variety of data sources using SQL and ‘big data’ technologies.

• Create data tools for analytics and data scientist team members that assist them in building and optimizing our product into an innovative industry leader.

• Work comfortably in a collaborative, agile environment, and be excited to learn

• Mentor junior software engineers 

Key Qualifications

• We are looking for a candidate with 7+ years of experience in coding & implementing complex projects in the Senior/Software Engineer role, who has attained a Graduate degree or higher in Computer Science or a related subject.

• Proficiency in Java is a must. Good understanding of Multi-threading, JVM, GC and profiling tools

• Strong troubleshooting and performance tuning skills

• Proficiency in working in Unix/Linux-based environment

• Good knowledge of data structures, algorithms, operating systems, and distributed systems fundamentals.

• Strong analytic skills related to working with unstructured datasets.

• Experience with relational SQL and NoSQL databases, like MySQL, Aerospike,  Postgres, etc.

• Experience supporting and working with cross-functional teams in a dynamic environment.

Nice-to-have

• Prior exposure to Big data technologies or large-scale distributed systems

• Prior experience in Golang, Python, Scala

• Prior experience in ClickHouse DB, Mongo

• Prior experience in Kafka, AeroSpike, Redis

• Prior experience with workflow automation tools like AirFlow.

• Prior experiences in CI tools like Jenkins or CircleCI

• Prior experience in operating system tuning

What do we offer?

• Exceptional career growth and learning opportunity

• A unique opportunity to be part of an experienced team of industry experts and entrepreneurs who bring massive change to the Adtech market

• A high degree of responsibility and independence

• Direct, day-to-day work experience with the management

• A fun, driven, and multinational team located across Germany, India, Argentina, Ukraine, Turkey, the UK and soon more countries

• A flexible work-from-home arrangement

• A 500-dollar home-office setup budget

• A 1000-dollar annual learning and development budget