Sigma Software

Software Architect (AdTech)

Sigma Software
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1 day ago
Kyiv, UkraineSenior

Responsibilities

  • Define and drive architecture for scalable AdTech solutions and distributed cloud platforms.
  • Own architectural decisions, technical direction, standards, governance principles, and engineering best practices.
  • Lead technical discovery, architecture assessments, solution design, estimations, and proofs of concept.
  • Translate complex business requirements into scalable, secure, and future-proof technical solutions.
  • Guide engineering teams on architecture implementation, scalability, performance optimization, and distributed systems design.
  • Drive customer-facing pre-sales activities, including presentations, architecture workshops, solution proposals, and technical consulting.
  • Support new business opportunities and identify technology consulting opportunities within existing customer engagements.
  • Evaluate emerging technologies and recommend innovative, including AI-driven, approaches.
  • Mentor engineers and support technical knowledge sharing across teams.

Requirements

  • At least 7 years of commercial software development experience and at least 3 years in architecture or technical leadership roles.
  • Strong hands-on expertise in at least two of Golang, Rust, Node.js, and C++.
  • Experience designing high-load, low-latency distributed systems and cloud-native architectures.
  • Strong understanding of microservices, messaging systems, caching, and API design principles.
  • Hands-on experience with Docker, Kubernetes, Helm, and production environments on AWS, GCP, or Azure.
  • Experience with REST APIs, gRPC, WebSockets, and event-streaming technologies such as Kafka, Kinesis, or Pub/Sub.
  • Experience in customer-facing technical consulting and pre-sales activities.
  • Strong communication, presentation, stakeholder management, ownership, mentoring, and collaboration skills.
  • At least Upper-Intermediate English proficiency.
  • AdTech experience and knowledge of programmatic advertising ecosystems, including SSPs, DSPs, AdServers, Header Bidding, OpenRTB, Prebid, and VAST, would be a plus.
  • Understanding of real-time bidding systems, auction mechanics, mobile advertising on iOS and Android, advertising analytics, fraud detection, consent management, real-time data processing, GDPR, CCPA, and privacy-first architectures would be a plus.
  • Experience designing SDKs, APIs, libraries, or integration frameworks would be a plus.

Benefits

  • Remote or hybrid cooperation format depending on location.
  • Opportunity to work with international customers and influence the technical direction of complex AdTech platforms.
  • Participation in a professional community of more than 300 AdTech experts and access to deep programmatic advertising, distributed systems, and cloud-native expertise.
Sigma Software

About Sigma Software

1,001-5,000 employees

Sigma Software is a London-headquartered, privately held IT consultancy that designs and builds custom software for startups and enterprises. The company provides end-to-end services—engineering, web and mobile development, .NET/Java platforms, AR/VR, and UI/UX—delivered via outsourcing, managed teams, and consulting. Founded in 2002, it supports long-term product development and modernization projects across multiple industries for global clients.

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