Senior Software Engineer, Backend

In this role, success is measured by the reliability, scalability, and performance of our platform. You will:

Lead Technical Design: Own the end-to-end design and delivery of .NET Core backend services and APIs that power ContextGPT, proactively accounting for scalability, performance, failure modes, and security as the platform grows across the ad-tech ecosystem.

Elevate Reliability: Identify bottlenecks and improve system observability (metrics, logging, monitoring). You will lead blameless post-mortems and implement long-term systemic fixes to prevent incident recurrence.

Drive Engineering Excellence: Strengthen the team through high-quality code reviews, technical mentorship, and the creation of exemplary technical artifacts (design docs, diagrams).

Navigate Ambiguity: Exercise strong judgment to resolve unknowns and balance long-term system health with rapid development velocity.

Collaborate on Direction: Partner with Product and Engineering leadership to align technical solutions with business priorities and roadmap requirements.

Ownership, Drive & Agency : You identify systemic problems, create solutions without waiting for direction, and drive execution through influence rather than authority.

System Design: Proven track record of designing, decomposing, and delivering high-scale production services or distributed systems.

Technical Proficiency: Strong programming skills in .NET Core or another strongly typed backend language such as Java or Kotlin, with experience building APIs, services, or data pipelines.

Operational Mindset: Deep understanding of system reliability, observability, and "up-front" design for maintainability.

Curiosity: You’re naturally curious and eager to understand how things work. You ask thoughtful questions, dig into unfamiliar systems and problems, and look beyond the immediate task to identify root causes and opportunities for improvement.

Communication: Clear ability to explain technical tradeoffs and decisions.

Experience designing large-scale distributed systems serving high-throughput production workloads

Deep experience building platform services or developer infrastructure used across multiple engineering teams

AdTech or programmatic advertising experience

Experience leading major partner integrations or platform expansion initiatives

Startup or high-growth company experience

Expertise with CI/CD, infrastructure automation, and engineering productivity tooling

Hands-on experience with .NET Core, AWS, RDS, ClickHouse, Datadog, or similar technologies

Festiv – We make work fun with cross-team games, events, and creative team bonding.

Responsiv – You’ll be close to clients and leadership, influencing real outcomes.

Inclusiv – Diversity and individuality are celebrated across all levels.

Inventiv – We reward curiosity and embrace bold ideas.

Transformativ – We support your growth with training, mentorship, and flexibility.

Collaborativ – We operate across coasts, connected by purpose and teamwork.