Senior Software Engineer (m/f/d)

About the Position

Hello 👋 I am Servesh, Co-founder and CTO at Kayzen, and I am now looking for a Senior Software Engineer who will be a part of the platform engineering team. 🙌

Kayzen is a mobile demand-side platform (DSP) dedicated to democratizing programmatic advertising. We enable leading apps, agencies, media buyers, and brands to run programmatic customer acquisition, retargeting, and brand performance campaigns through its self-serve and managed service options. Built on the three core pillars of performance, transparency, and control, Kayzen powers the world’s best mobile marketing teams with bespoke solutions that fuel business growth and deliver a competitive advantage.

With an unprecedented scale of 160B+ daily ad requests from 1.6B+ unique users worldwide, we serve up to 1B+ ads per day in 180 countries. Kayzen is accessible through our APIs and user interface.

Responsibilities

As a Senior Software Engineer, you will:

• Design, code, deploy & maintain highly scalable software components, optimal data pipeline architecture for large-scale data volumes
• Dive deep into any part of the stack and low-level systems, as well as design broad distributed system interaction
• Assemble large, complex data sets that meet functional / non-functional business requirements
• 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
• Mentor junior software engineers

Requirements

• Min. 5 years of experience in coding & implementing complex projects
• Proficiency in Java is a MUST
• Deep understanding of Multi-threading, JVM, GC and profiling tools
• Good knowledge of data structures, algorithms, operating systems, and distributed systems fundamentals
• Experience with relational SQL and NoSQL databases, proficiency in working in Unix/Linux-based environment
• Hands on with AI development tools like (Claude code, Github Copilot etc) and demonstrates AI usage, adoption & agentic coding in day to day work

Nice to Have

• Experience with C++/Golang
• Past Experience in ML/DS is a big plus
• Ad-tech, marketing-tech experience is a big plus

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
• 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: we have office in Bangalore but fully remote mode is possible
• A 500-dollar home-office setup budget
• A 1000-dollar annual learning and development budget
• Regular company events

About the Company

Kayzen is a mobile demand-side platform (DSP) dedicated to democratizing programmatic advertising. We enable leading apps, agencies, media buyers, and brands to run programmatic customer acquisition, retargeting, and brand performance campaigns through its self-serve and managed service options. Built on the three core pillars of performance, transparency, and control, Kayzen powers the world’s best mobile marketing teams with bespoke solutions that fuel business growth and deliver a competitive advantage.