Location:
Warsaw, Masovian Voivodeship, pl, Remote
Company Description Are you ready to move from operational delivery into strategic partnership development? We are looking for an Account Manager with a strong Project Management background who is passionate about building long-term Customer relationships and driving business growth.
You will join Stellar, Sigma Software’s dedicated AdTech business unit, where over 300 experts collaborate with global companies and startups to create innovative advertising technology solutions. In this role, you will focus on strategic account development, Customer engagement, and business expansion while working closely with delivery teams and business stakeholders.
We at Sigma Software offer the opportunity to work with international Customers, influence business growth, and become part of a strong professional community with deep AdTech expertise. Remote or hybrid cooperation format can be discussed depending on your location.
Job Description
Build and maintain long-term, trust-based relationships with Customers
Act as the primary point of contact for strategic account discussions
Identify and drive growth opportunities within existing accounts
Collaborate with delivery teams on upsell and cross-sell initiatives
Monitor Customer satisfaction and proactively mitigate risks
Align Customer expectations with operational and delivery capabilities
Translate business needs into structured internal action plans
Partner with Project Managers and delivery stakeholders to ensure transparency and predictability
Support contract extensions, commercial negotiations, and account planning activities
Contribute to long-term account development strategies
Facilitate effective communication between Customers and internal teams
Drive continuous improvement in Customer engagement processes
Qualifications
5+ years of experience in Project Management and/or Program Management
Proven experience in Account Management within a service-based IT company
Strong understanding of operational processes in European and US-based corporations
Successful track record of developing and scaling Customer accounts
Hands‑on experience creating, negotiating, and managing delivery contracts
Strong commercial mindset and ability to identify business opportunitiesExcellent communication, stakeholder management, and negotiation skills
Ability to build strategic long‑term partnerships with Customers
Experience balancing Customer expectations with operational capabilities
Structured, analytical, and solution‑oriented mindset
Upper‑Intermediate or higher level of English
WILL BE A PLUS
Experience in the AdTech domain
Background working with distributed international teams
Experience collaborating with executive‑level stakeholders
Understanding of software delivery lifecycle and engineering processes
Experience participating in pre‑sales or business development initiatives
Additional Information PERSONAL PROFILE
Relationship‑oriented and Customer‑focused mindset
Strong ownership and accountability
Strategic and business‑oriented thinking
Proactive and growth‑driven approach
Strong collaboration and conflict‑resolution skills
Ability to work effectively in a dynamic environment
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