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Salary
≈ $85k – $136k per year (Estimated)
Location
In office (Warsaw)
Seniority
Senior · 7+ years exp
Employment
Full-Time

Confirmed on the employer's own hiring board on Sep 24, 2026. First seen by Alion on Sep 10, 2026.

Overview
Company
Impact
Profile match
Sigma Software is a technology services company founded in 2002 as the Ukrainian development arm of the Swedish Sigma Group, and now a global organisation with delivery centres in Ukraine, Poland, Sweden, the United States and Latin America. It builds custom software for clients in advertising technology, automotive, aviation, gaming, telecommunications and the public sector, and runs its own product and startup arms alongside the services business. The company is known for keeping its Ukrainian engineering operation running through the war and for a substantial programme of technology work supporting Ukrainian defence and public institutions.

We are seeking a highly skilled Solution Architect to drive design and delivery of cutting-edge AdTech platforms and innovations.

This role offers the opportunity to contribute to impactful AdTech initiatives in programmatic advertising, real-time bidding, identity resolution, predictive analytics, and measurement. The focus is on developing advanced technical solutions that help global clients accelerate growth and unlock meaningful business value.

PROJECT

By joining our team, you will have the opportunity to work on a variety of AdTech initiatives that span programmatic advertising, real-time bidding, identity resolution, predictive analytics, and measurement. These projects are focused on developing advanced, high-value technical solutions that help our clients scale, grow, and evolve.

This role is well-suited for those who bring strong architectural thinking skills, experience with high-performance distributed systems, and the ability to translate complex technical concepts into clear ideas for diverse audiences. The environment is dynamic and collaborative, with daily interaction between engineers, PMs, data experts, product owners, and customer stakeholders who work together to build innovative solutions.

The responsibilities include guiding teams, driving architectural decisions, supporting pre-sales activities, leading discovery phases, evaluating technologies, and introducing forward-thinking approaches to address sophisticated AdTech challenges. This position involves working with mission-critical platforms that operate under extreme performance requirements, such as low latency, high load, and large volumes of data.

This role offers a unique opportunity to grow within a strong and supportive community of experts for those who enjoy solving complex technical problems, contributing to long-term partnerships, and shaping next-generation AdTech solutions.

  • Design, architect, and oversee the implementation of AdTech solutions, including SSPs, DSP integrations, ad servers, RTB pipelines, header bidding systems, identity frameworks, analytics pipelines, and auction engines
  • Act as a technical driver across multiple initiatives, ensuring architectural consistency, quality, and scalability
  • Stay up to date with evolving AdTech standards (OpenRTB, Prebid, VAST, GPP, TCF 2.2, UID2, RampID, etc.)
  • Lead the discovery and assessment phases, including architecture reviews, gap analysis, and solution scoping
  • Provide technical estimation, advisory services, PoCs, and support during pre-sale activities
  • Translate complex business requirements into scalable and compliant technical architectures
  • Define architectural standards, best practices, reference models, governance rules, CI/CD expectations, and operational guidelines
  • Collaborate with development teams to ensure high-quality implementation and adherence to architectural decisions
  • Provide recommendations for solution design, performance tuning, data modeling, and cost optimization
  • Guide teams in building future-proof, maintainable, and scalable software components
  • Mentor engineers, conduct knowledge-sharing sessions, and support professional growth of the team
  • 7+ years of experience in software development
  • 3+ years in a technical leadership or architecture role
  • Strong proficiency in at least one of the following languages: C++, Golang, Rust, or Node.js
  • Proven experience designing and building high-load, low-latency, and scalable cloud platforms
  • Hands-on experience with containerization and orchestration (Docker, Kubernetes, Helm, etc.)
  • Successful track record in consulting engagements, pre-sales activities, and client-facing presentations
  • Strong understanding of distributed systems, performance optimization, messaging, caching, and API design
  • Advanced level of English

WOULD BE A PLUS

  • Experience in the AdTech domain (SSP, DSP, ad server, header bidding, OpenRTB, Prebid, VAST, user sync, identity solutions, audience data, measurement/attribution, etc.)
  • Hands-on knowledge of real-time bidding systems and auction mechanics
  • Familiarity with mobile ad delivery (iOS/Android)
  • Experience designing SDKs, APIs, libraries, and integration frameworks
  • Experience with ad integrations, analytics pipelines, consent management (TCF/GPP), and fraud detection
  • Experience with Prebid ecosystem
  • Understanding of privacy-driven architectures and GDPR/CCPA compliance principles

PERSONAL PROFILE

  • Self-driven, independent, detail-oriented, and a responsible team player
  • Excellent communication skills and works well with both engineering teams and business stakeholders
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