Liftoff

Liftoff is a leading AI-powered performance marketing platform for the mobile app economy. Our end-to-end technology stack helps app marketers acquire and retain high-value users, while enabling publishers to maximize revenue across programmatic and direct demand. Liftoff’s solutions, including Accelerate, Direct, Monetize, Intelligence, and Vungle Exchange, support over 6,600 mobile businesses across 74 countries in sectors such as gaming, social, finance, ecommerce, and entertainment. Founded in 2012 and headquartered in Redwood City, CA, Liftoff has a diverse, global presence. Liftoff is looking for a Commercial Legal Counsel that will assist the in-house legal department with Insertion Orders (Agreements), third party contracts and other legal needs. This position will support the Commercial, Finance and Accounting teams, located around the world. As a Commercial Legal Counsel at Liftoff, you will play a pivotal role in ensuring the seamless execution of contracts that drive our business forward. You will be at the intersection of legal expertise, meticulous organization, and collaborative teamwork. Your responsibilities will encompass contract drafting, negotiation, process improvement and training. As an essential part of our team, you'll contribute to the foundation of our business relationships and help us navigate the complex world of contracts with precision and efficiency. If you're passionate about detail-oriented work, contract law, and making a meaningful impact, this role is your opportunity to shine. Join us in shaping the way we manage contracts and elevate our commitment to excellence. Responsibilities: Draft, review, and negotiate a wide range of contracts, including vendor agreements, customer contracts, and licensing agreements, to ensure compliance with company policies and legal requirements. Collaborate with internal teams, including legal, sales/commercial, product, engineering, finance and accounting to understand contract terms, resolve issues, and provide guidance on contractual matters. Maintain an organized and up-to-date contract ticketing system, respond to each contract ticket in a timely manner and track contract milestones and deadlines. Assist in contract compliance, addressing any deviations or breaches. Assist in the development and improvement of contract templates and standard clauses. Support the contract approval process, ensuring proper authorization and documentation. Provide guidance and training to employees on contract-related matters and best practices. Stay updated on relevant laws and regulations impacting contract management. Requirements: 5-10 Years of experience Bachelor's degree in Law, or a related field. Proven experience as a Contracts Counsel/Legal Counsel or in a similar role. Strong understanding of contract law and legal terminology. Excellent written and verbal communication skills. Detail-oriented with exceptional organizational and time management abilities. Proficiency in contract management software or tools. Ability to work collaboratively in a cross-functional team environment globally. Prior experience in ad-tech is a plus. Location: This position is based in London or remotely within the United Kingdom, occasionally going into the office. This position is a contract position with the potential to become a full-time employee. The expected hours of work required for this position are 35 to 40 hours per week, with occasional early evening hours for team meetings, as the manager is located in our Redwood City office in California. #LI-REMOTE #LI-NM1 Liftoff offers a fast-paced, collaborative, and innovative work environment where employees are empowered to grow and make an impact. We’re shaping the future of the mobile app ecosystem—join us and help accelerate what’s next. Liftoff’s compensation strategy includes competitive salaries, equity, and benefits designed to support employee well-being and performance. We benchmark compensation based on role, level, and location to ensure fairness and market alignment. Benefits may include medical coverage, wellness stipends, and additional perks based on your country of residence. Liftoff is an equal opportunity employer. We are committed to creating an inclusive environment for all employees and applicants regardless of race, ethnicity, national origin, age, marital status, disability, sexual orientation, gender identity, religion, veteran status, or any other characteristic protected by applicable law. Agency and Third Party Recruiter Notice: Liftoff does not accept unsolicited resumes from individual recruiters or third-party recruiting agencies in response to job postings. No fee will be paid to third parties who submit unsolicited candidates directly to our hiring managers or Recruiting Team. All candidates must be submitted via our Applicant Tracking System by approved Liftoff vendors who have been expressly requested to make a submission by our Recruiting Team for a specific job opening. No p

Liftoff is a leading AI-powered performance marketing platform for the mobile app economy. Our end-to-end technology stack helps app marketers acquire and retain high-value users, while enabling publishers to maximize revenue across programmatic and direct demand. Liftoff’s solutions, including Accelerate, Direct, Monetize, Intelligence, and Vungle Exchange, support over 6,600 mobile businesses across 74 countries in sectors such as gaming, social, finance, ecommerce, and entertainment. Founded in 2012 and headquartered in Redwood City, CA, Liftoff has a diverse, global presence. The Liftoff Security team protects Liftoff's customers, users, and employees. We architect Liftoff's security posture, build the tools and systems that defend it, and partner with engineering teams as they ship new products and features. Our work spans the entire stack — infrastructure, web, mobile, and IT — and we approach security from a software engineering standpoint, scaling our impact through automation and well-designed tools. Now is the time to join! Here's why: Build out our detection and response function. Liftoff has a mature security information and event management platform (SIEM), established detection content, and a working incident response program. Your charter is to take it to the next level — including leading our investment in AI-augmented SOC tooling. High visibility, high impact. Detection and response is a critical capability for Liftoff. Security-conscious engineering culture. Liftoff's engineering org is a willing and capable partner on security work. Hands-on technical work. Stay deep in code, detections, and incidents. Breadth of work. Detection and response is the primary focus, but you'll partner across the security team on cloud, infrastructure, and application security where the work demands it. Large-scale, interesting systems. Liftoff processes millions of requests per second across its demand-side platform (DSP), mobile software development kit (SDK), and ad exchange. Responsibilities: Own day-to-day operation of Liftoff's SIEM (Panther) — log source ingestion, detection content, and the alert investigation pipeline. Lead Liftoff's adoption of AI-augmented SOC tooling (e.g. Prophet, Dropzone, or equivalent) as a multi-year modernization investment. Triage incoming security alerts and drive timely investigation and remediation with stakeholders across Engineering and IT. Lead incident response — investigation, containment, and post-incident review — and mature processes and runbooks so response becomes predictable and repeatable. Build tooling and automation that detects active threats, enriches alerts, and reduces manual investigation toil. Partner with Engineering and IT to make detection and response self-service where possible — clear log-onboarding paths, documented detection proposals, accessible runbooks — so security scales without becoming a bottleneck. Close the feedback loop between the team's offensive and proactive findings and detection coverage. Partner across the security team on cloud, infrastructure, and application security work alongside your detection and response focus — every engineer on this team covers breadth beyond their primary focus. Participate in the Security team's on-call rotation and incident response. Minimum Qualifications: 5+ years in security engineering, security operations, detection engineering, or software engineering with a security focus. Hands-on production SIEM operation — onboarding log sources, writing and maintaining detection content, and triaging alerts. Write production-quality code for security automation and detection-as-code. Experience leading or substantially contributing to security incident response. Strong technical writing — design docs, runbooks, and post-incident reviews. Demonstrated judgment in prioritizing security work using a risk-based approach. Ability to quickly navigate large, unfamiliar codebases and reason about complex engineering systems. Excellent verbal communication. Willing to participate in an on-call rotation. Desirable Qualifications: Hands-on experience with an AI-augmented SOC platform (Prophet Security, Dropzone AI, or equivalent), or with building large language model (LLM) augmented investigation and runbook tooling. Experience operating in cloud environments at scale. Cloud incident response experience, particularly in AWS. Endpoint forensics for incident response on Mac and/or Linux. Detection-as-code workflows in continuous integration and deployment (CI/CD) pipelines. Mobile adtech or high-volume SaaS background. Compensation : The following are our base salary ranges for this role: SF Bay Area, Los Angeles/Orange County, NYC, Seattle : $200,000 - $240,000 All other California and Washington state locations, Austin, Boston, Denver, Portland: $184,000 - $220,000 All other cities and towns in our approved states: $172,000 - $206,000 Location: This role is eligible for full-time remote work in one of our entitie

Liftoff is a leading AI-powered performance marketing platform for the mobile app economy. Our end-to-end technology stack helps app marketers acquire and retain high-value users, while enabling publishers to maximize revenue across programmatic and direct demand. Liftoff’s solutions, including Accelerate, Direct, Monetize, Intelligence, and Vungle Exchange, support over 6,600 mobile businesses across 74 countries in sectors such as gaming, social, finance, ecommerce, and entertainment. Founded in 2012 and headquartered in Redwood City, CA, Liftoff has a diverse, global presence. Join Liftoff as a Senior Gen AI Software Engineer and help shape the future of ad tech. As a key member of our Gen AI team, you’ll design and build AI-powered products for our demand-side business, helping teams turn complex data into better decisions and meaningful customer growth. You’ll work across the stack, building intelligent systems and data pipelines in Python, alongside the TypeScript and React experiences that bring those capabilities to users. You’ll partner closely with product, engineering, and customer-facing teams to identify high-impact opportunities, move quickly from prototype to production, and continuously improve what you ship. This is a hands-on role for an engineer who enjoys working at the intersection of AI, product, and software engineering. You’ll help define how Liftoff applies modern AI to real business problems, balancing experimentation with the judgment and engineering discipline needed to build useful, reliable products. This role is ideal for an engineer who thrives in ambiguity, enjoys experimenting with new technology, and is motivated by turning promising AI capabilities into products that create real value. You’ll tackle complex problems, validate new approaches, and drive meaningful improvements across Liftoff. WHAT YOU'LL DO Own generative AI product capabilities end to end, from understanding user workflows and prototyping an approach through implementation, rollout, measurement, and ongoing improvement. Rapidly prototype and validate AI solutions, using focused experiments to test user value and technical feasibility, then turn what works into production-ready capabilities. Build agentic workflows that can reason over campaign, customer, creative, and performance data, use well-defined tools, produce structured results, and hand control back to a person when appropriate. Partner closely with decision makers and subject matter experts to understand their workflows, constraints, and business context, then integrate AI agents into daily work in practical and useful ways. Design how AI systems access and use relevant information, including the data, tools, and instructions needed to produce useful grounded results. Build the systems that make AI workflows reliable in production, including tool use, state management, failure recovery, and appropriate boundaries for human review. Define clear, testable interfaces between models and software so uncertain model behavior can be handled safely within dependable product systems. Develop evaluation systems that measure whether AI features accomplish the intended task, using realistic examples and an appropriate combination of automated checks and human judgment. Build the instrumentation needed to understand quality, adoption, business impact, latency, cost, and failure modes in production. Apply appropriate safeguards for customer data, system access, and high-impact workflows. Build the Python services and TypeScript and React interfaces that turn these capabilities into cohesive products for customer facing teams. Evaluate new models and techniques pragmatically, adopting them when they materially improve product quality, capability, speed, or cost. Mentor other engineers and help establish shared practices for designing, testing, and operating AI-powered products. WHO YOU ARE Minimum Bachelors Degree and 8 yrs of relevant experience. You are a seasoned software engineer who has built and operated meaningful production products, ideally including zero-to-one work spanning backend services, data, and user interfaces. You have shipped LLM-powered or AI-assisted products beyond a demo and understand the practical challenges of reliability, context, tool use, provider changes, latency, cost, and changing model behavior. You are highly proficient in Python and comfortable working in TypeScript and React, with strong fundamentals in API design, data modeling, SQL, and testing. You understand how to build the broader system around a model, including its data, tools, instructions, permissions, feedback loops, and measures of quality. You can define success criteria, investigate failures, and use testing, feedback, and production signals to improve AI experiences over time. You exercise strong product and engineering judgment, choosing when a problem calls for traditional software, an LLM-powered approach, or a thoughtful combination of both. You communicat

Liftoff is a leading AI-powered performance marketing platform for the mobile app economy. Our end-to-end technology stack helps app marketers acquire and retain high-value users, while enabling publishers to maximize revenue across programmatic and direct demand. Liftoff’s solutions, including Accelerate, Direct, Monetize, Intelligence, and Vungle Exchange, support over 6,600 mobile businesses across 74 countries in sectors such as gaming, social, finance, ecommerce, and entertainment. Founded in 2012 and headquartered in Redwood City, CA, Liftoff has a diverse, global presence. At Liftoff, we’re solving one of the core problems faced by every mobile app: growth. To do so, we build Machine Learning and Big Data-driven technology that can accurately predict which apps a user will like, and connect them in a compelling way. Our systems operate at a scale unseen outside of the largest Internet companies -- processing over 12 million requests per second and interacting with over 5 billion unique users each day. The Serving team builds and maintains the mission-critical infrastructure responsible for serving ads across Liftoff’s product line. As an engineer on Liftoff’s Accelerate Serving team, you will: Design, build, and operate the high-throughput, low-latency services that receive bid requests, execute Liftoff’s bidding logic, and respond to ad exchanges in real time. Improve the performance, scalability, and reliability of systems that process millions of requests per second under strict latency constraints. Develop and optimize GPU-powered inference services that execute neural network models using TensorRT. Profile end-to-end inference pipelines to identify and eliminate bottlenecks in GPU utilization, batching, memory access, serialization, networking, and request handling. Partner with machine learning engineers to productionize new model architectures and features, translating modeling requirements into efficient and reliable serving implementations. Design and operate large feature store fleets that provide low-latency access to real-time and precomputed features. Develop benchmarking and performance-analysis tools that help engineers compare models, understand latency and throughput trade-offs, and identify regressions before deployment. Improve experimentation tooling that allows machine learning teams to orchestrate offline training runs, evaluate candidate models, and maintain model leaderboards. Own changes through their full lifecycle—from system design and implementation to testing, deployment, observability, capacity planning, incident response, and continued optimization. Requirements: Strong core Computer Science fundamentals (data structures, algorithms, system architecture) 10+ years of industry experience M.S.. or higher in Computer Science (or equivalent work experience) Experience with Go is a plus Location: This role is eligible for full-time remote work in one of our entities: CA, CO, ID, IL, FL, GA, MA, MI, MN, MO, NJ, NV, NY, OR, PA, TX, UT, and WA We are a remote-first company with US hubs in Redwood City, Los Angeles, and New York City. Travel Expectations: We offer several opportunities for in-person team gatherings, including but not limited to project meetings, regional meetups, and company-wide events. We expect our employees to attend these gatherings at least once per quarter. These gatherings provide essential opportunities for collaboration, communication, and team building. Compensation: Liftoff offers all employees a full compensation package that includes equity and health/vision/dental benefits associated with your country of residence. Base compensation will vary based on the candidate's location and experience. The following are our base salary ranges for this role: SF Bay Area, NYC, Los Angeles/Orange County : $255,000 - $310,000 Seattle/Olympia, Austin, San Diego, Santa Barbara, Boston: $234,000 - $285,000 All other cities and towns in our approved states: $219,000 - $266,000 #LI-EL1 Liftoff offers a fast-paced, collaborative, and innovative work environment where employees are empowered to grow and make an impact. We’re shaping the future of the mobile app ecosystem—join us and help accelerate what’s next. Liftoff’s compensation strategy includes competitive salaries, equity, and benefits designed to support employee well-being and performance. We benchmark compensation based on role, level, and location to ensure fairness and market alignment. Benefits may include medical coverage, wellness stipends, and additional perks based on your country of residence. Liftoff is an equal opportunity employer. We are committed to creating an inclusive environment for all employees and applicants regardless of race, ethnicity, national origin, age, marital status, disability, sexual orientation, gender identity, religion, veteran status, or any other characteristic protected by applicable law. Agency and Third Party Recruiter Notice: Liftoff does not accept unsolicited resume

Liftoff is a leading AI-powered performance marketing platform for the mobile app economy. Our end-to-end technology stack helps app marketers acquire and retain high-value users, while enabling publishers to maximize revenue across programmatic and direct demand. Liftoff’s solutions, including Accelerate, Direct, Monetize, Intelligence, and Vungle Exchange, support over 6,600 mobile businesses across 74 countries in sectors such as gaming, social, finance, ecommerce, and entertainment. Founded in 2012 and headquartered in Redwood City, CA, Liftoff has a diverse, global presence. About the Team: At Liftoff, we believe great customer outcomes require both technical depth and genuine empathy for each partner's unique challenges. As our platform scales globally, we're looking for people who can turn complex systems into practical, working solutions. As a Software Engineer in Partner Engineering, you’ll play a pivotal role in shaping technical solutions that directly impact our top-tier partners. You’ll collaborate with internal and external stakeholders, bridging gaps between engineering, product, and partner teams. This is a hands-on role where you’ll design, implement, and optimize solutions that help our partners succeed in a fast-evolving mobile ecosystem. Responsibilities: Build deep technical expertise in Liftoff products to maximize customer impact. Drive successful client outcomes by translating complex business requirements into high-impact, scalable technical solutions. Own the end-to-end technical lifecycle for partner integrations, ensuring seamless launches from initial onboarding through steady-state maintenance. Innovate by refining Liftoff’s tools and products based on direct customer and partner feedback. Identify, troubleshoot, and resolve reported issues, implementing automated solutions to prevent recurrence. Collaborate across teams to ensure seamless and consistent partner experiences. Foster engineering excellence through design, risk-driven testing, and code review. Requirements 5+ years of related experience; adtech industry experience a plus Bachelor's Degree; Computer Science, Data/ Analytics a plus Proficiency in at least one programming language like Golang, Python, JavaScript, or Java. Strong SQL and big data analysis skills. Customer empathy and a passion for problem-solving. Strong analytical, problem-solving, and troubleshooting abilities. Clear communication skills with a customer-focused mindset. Self-motivated, proactive, and collaborative spirit. A sense of curiosity and fun—you enjoy tackling challenges with enthusiasm! Why You’ll Love Working Here Work on impactful projects in the dynamic and fast-growing mobile ad tech space. Join a team that values collaboration, innovation, and excellence. Enjoy flexible work options suited to your lifestyle. Be part of a company committed to diversity, inclusion, and personal growth. Location: This role is eligible for full-time remote work in Canada. We are a remote-first company with US hubs in Redwood City, Los Angeles, and New York City. Travel Expectations: We offer several opportunities for in-person team gatherings, including but not limited to project meetings, regional meetups, and company-wide events. We expect our employees to attend these gatherings at least once per quarter. These gatherings provide essential opportunities for collaboration, communication, and team building. Compensation : Liftoff offers all employees a full compensation package that includes equity and health/vision/dental benefits associated with your country of residence. Base compensation will vary based on candidate location and experience. The following are our base salary ranges for multiple levels: Canada: $135,00- $160,000 CAD #LI-CM1 Liftoff offers a fast-paced, collaborative, and innovative work environment where employees are empowered to grow and make an impact. We’re shaping the future of the mobile app ecosystem—join us and help accelerate what’s next. Liftoff’s compensation strategy includes competitive salaries, equity, and benefits designed to support employee well-being and performance. We benchmark compensation based on role, level, and location to ensure fairness and market alignment. Benefits may include medical coverage, wellness stipends, and additional perks based on your country of residence. Liftoff is an equal opportunity employer. We are committed to creating an inclusive environment for all employees and applicants regardless of race, ethnicity, national origin, age, marital status, disability, sexual orientation, gender identity, religion, veteran status, or any other characteristic protected by applicable law. Agency and Third Party Recruiter Notice: Liftoff does not accept unsolicited resumes from individual recruiters or third-party recruiting agencies in response to job postings. No fee will be paid to third parties who submit unsolicited candidates directly to our hiring managers or Recruiting Team. All candidates must