Principal Software Engineer, DSP Integrations

Role Description

The Principal Software Engineer, DSP Integrations is a full-time remote role with an optional office in Burlington, VT. This is a senior individual contributor role focused on the architecture and execution of Fluency's integrations with major Demand-Side Platforms, with a near-term focus on accelerating Amazon DSP delivery and sustaining cross-DSP integration depth across TTD, Amazon DSP, and Basis.

• Architect Fluency's integrations with major Demand-Side Platforms (currently TTD, Amazon DSP, and Basis; expanding over time).
• Design and own partner API integrations (REST and GraphQL), including authentication, rate limits, retries, idempotency, reporting feeds, and webhook patterns.
• Encode platform-specific operational semantics (campaign and ad group structure, targeting, budget behavior, bid strategies, attribution windows, learning-phase triggers) so that Fluency executes correctly on each DSP.
• Implement cross-DSP capabilities including blueprint integration, reverse sync and forward mutate patterns, and object authority models.
• Partner with DSPs at the engineering level, collaborating with partner-side technical contacts to unblock integration work.
• Set technical direction and quality standards through architectural decisions, code, and design reviews, exercising influence rather than formal authority.
• Triage and resolve partner-integration defects and client-launch issues affecting campaign execution and reporting accuracy.

Qualifications

• 8+ years of software development experience, with a heavy focus on backend architecture and integration design.
• Direct experience integrating with major DSPs as a consumer of their APIs (TTD, Amazon DSP, Basis, MSFT DSP, Yahoo DSP, StackAdapt, or equivalents). Hands-on knowledge of more than one is strongly preferred.
• Deep experience working with partner APIs at scale: REST and GraphQL, authentication patterns, rate limits, retries, idempotency, reporting ingestion, and webhook handling.
• Practical understanding of DSP operational differences (budgeting, pacing, targeting, bid strategies, reporting), with a track record of encoding those differences correctly in integration logic.
• Proven proficiency with Java and Spring Boot, including event-driven services (e.g., Kafka).
• Knowledge of cloud infrastructure (AWS) and experience with distributed systems operating at high data volume.

Requirements

• Distributed systems at walled-garden API volume.
• AI-augmented production pipelines.
• AI-augmented software development.
• Comfort with high-volume integration workloads.
• Strong bias toward ownership and impact in an environment with aggressive deadlines and externally committed delivery dates.
• Passion for iterative development and continuous learning.

Benefits

• Medical, dental and vision coverage for employees and their families.
• 401(k) plan with company match.
• Four weeks of Combined Time Off (CTO), flexible schedule and twelve holidays.
• Maternity and parental leave.
• Employee wellness programs and mental health support.
• Remote work flexibility and home office stipends.