Lead Ad Tech

Titan OS

. Lead, mentor and grow a team of engineers through 1:1s, continuous feedback and career development .

Posted 11/4/2026full-timeBarcelona • SpainSeniorWebsite

Core Competencies

Role fit

Core Competencies

Use this summary to align your resume positioning with the role.

Demonstrates expertise in leading engineering teams, with a strong focus on Ruby on Rails and Go development, while ensuring high-performance and compliance with industry standards. Capable of designing scalable systems and collaborating effectively across departments to meet business objectives.

Highest-signal resume keywords

Ruby On Rails DevelopmentGo DevelopmentTeam LeadershipAPI DesignGDPR Compliance

ATS Keywords

Tailor your resume

Applicant Tracking System Keywords

Tip: use these terms in your resume and cover letter to boost ATS matches.

Hard Skills

Software EngineeringFull Stack DevelopmentRelational DatabasesPostgreSQLMySQLCaching TechnologiesRedisKafkaAWSJavaScript

Soft Skills

MentoringCollaborationCommunicationFeedbackCareer Development

Tools & Technologies

CI/CDContainersObservability PracticesReactTypeScript

Industry Keywords

Ad-TechIAB StandardsOpenRTBVASTReal-Time BiddingServer-Side Ad InsertionCTVOTTFASTCookieless Environments

Tech Stack

Tools & technologies

AWSCloudDistributed SystemsJavaScriptKafkaMySQLPostgresReactRedisRubyRuby on RailsTypeScriptGo

About the role

Key responsibilities & impact

Lead, mentor and grow a team of engineers through 1:1s, continuous feedback and career development
Participate in hiring and onboarding new team members
Define and uphold engineering practices covering code review, testing, CI/CD, documentation and on-call
Plan and prioritize team work with Product, balancing roadmap, technical debt and operations
Design and evolve advertising-stack services including ad serving, programmatic integrations, ad insertion and reporting
Develop hands-on primarily in Ruby on Rails and Go, contributing to frontend work when needed
Ensure performance, low latency and high availability of high-traffic services
Ensure GDPR and IAB TCF compliance for consent and identity handling
Make and document technical decisions and serve as the Ad-Tech reference for other engineering teams
Collaborate with Product, Data, Ad Operations and Sales to turn business needs into scalable, reliable systems

Requirements

What you’ll need

5+ years of experience as a software engineer, full stack with a strong backend focus
Solid production experience with Ruby on Rails and Go
2+ years leading an engineering team as a tech lead or engineering manager, accountable for people and delivery
Experience designing APIs and high-performance, low-latency distributed systems
Strong knowledge of relational databases such as PostgreSQL or MySQL
Experience with caching/queueing technologies such as Redis, Kafka, SQS or similar
Experience with cloud platforms, ideally AWS, containers and observability practices
Modern frontend knowledge including JavaScript/TypeScript and React or similar
Fluent English, spoken and written
Nice to have: Ad-tech experience with ad servers, SSPs/DSPs, header bidding or real-time bidding
Nice to have: Knowledge of IAB standards including OpenRTB, VAST/VMAP, TCF v2 and GPP
Nice to have: Experience in CTV, OTT or FAST, including server-side ad insertion (SSAI)
Nice to have: Familiarity with identity and ad measurement solutions in cookieless environments
Nice to have: Experience with large-scale data pipelines and reporting
Nice to have: Spanish to collaborate with part of the team

Benefits

Comp & perks

Centrally located office in the heart of Barcelona, with public transportation nearby
Competitive compensation
Private health insurance
Friendly, diverse, and international work environment
Opportunity to work outside of your comfort zone and develop professionally in an exciting and fast-growing CTV industry
Opportunity to join a well-funded, high-growth company in its early stages and help shape a product/business impacting millions