---
title: 'Senior Staff Software Engineer, Serving at Liftoff'
canonical: 'https://feeny.ai/job/senior-staff-software-engineer-serving-liftoff-united-states-59k8xn7kc60v'
type: 'job'
last_seen: '2026-09-15'
---

# Senior Staff Software Engineer, Serving at Liftoff

- **Company:** Liftoff
- **Location:** United States
- **Work type:** remote
- **Posted:** 2026-09-08
- **Last confirmed live:** 2026-09-15
- **Apply:** https://liftoff.io/job/8187368?gh_jid=8187368

## Job description

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 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 placement fees will be paid to any firm unless such a request has been made by the Liftoff Recruiting Team and such a candidate was submitted to the Liftoff Recruiting Team via our Applicant Tracking System.

## About Liftoff

## Company Overview
- **One-liner**: Liftoff is an AI-powered performance marketing platform that helps mobile app businesses acquire, engage, and monetize users through a full-stack growth acceleration platform.
- **Entity Type**: Public (NYSE: LFTO)
- **Headquarters**: Redwood City, California, USA
- **Founded**: 2012
- **Founders**: Not publicly listed (company was co-founded by a team; specific founder names are not disclosed on the company site)

## Core Business
- **Primary industry/industries**: Mobile advertising, performance marketing, adtech, programmatic advertising, mobile app analytics
- **Target customers**: B2B – mobile app marketers, publishers, and advertisers across gaming, social, finance, ecommerce, and entertainment sectors
- **Mission or purpose statement**: “Connect people to the mobile apps and tools they love”

## Products & Services
- **Accelerate** (SaaS): ML-powered user acquisition platform that helps advertisers attract and engage high-value users at scale.
- **Monetize** (SaaS): Revenue optimization platform for publishers to maximize earnings through premium demand and superior ad experiences.
- **Vungle Exchange** (Platform): Programmatic exchange that increases reach for performance-driven ad experiences across mobile apps.
- **Intelligence** (SaaS): Analytics suite (including GameRefinery and AppRefinery) that provides app insights to boost revenue, drive growth, and stay competitive.
- **Creative** (Service/Technology): Ad creative production and optimization using innovative strategies and first-party data.

All products are powered by **Cortex™**, Liftoff’s AI-enabled growth platform using advanced neural-network technology.

## Market Standing
- **Valuation/Market Cap**: Not disclosed in available sources (public company; refer to SEC filings for current market cap)
- **Key Metric**: Annual revenue not publicly available from search results; total funding not applicable (public company). Notable: supports over 6,600 mobile businesses across 74 countries.
- **Notable Investors/Partners**: Merged with Vungle in 2021, creating one of the world’s largest independent privacy-friendly platforms. Prior to going public, Liftoff was backed by institutional investors (specific names not listed in search results).
- **Growth Signals**: 
  - Headcount of 645 employees (235 in product + tech) as of latest data.
  - Global presence with offices in Redwood City, London, Berlin, Paris, Singapore, Beijing, Helsinki, Seoul, New York, Los Angeles.
  - Public listing (ticker LFTO) indicates maturity and market confidence.

## Competitive Advantages
- **AI-first platform**: Cortex AI is embedded in all products, using neural networks to unlock patterns from massive datasets for data-driven ROI.
- **End-to-end stack**: Covers the entire mobile app lifecycle – user acquisition, engagement, monetization, and analytics – reducing the need for multiple vendors.
- **Scale and independence**: Post-merger with Vungle, Liftoff is one of the largest independent ad platforms, with a publisher base of 100,000+ active apps and an advertiser base of 4,500+ companies.
- **Privacy-friendly**: Emphasis on privacy-compliant solutions in a rapidly changing regulatory environment.

## Strategic Focus
- Expanding AI and machine learning capabilities across all products (e.g., conversion ML, ML platform).
- Deepening global reach with hubs in key markets (APAC, EMEA, Americas).
- Continuing to integrate Vungle’s assets and drive cross-sell between Accelerate, Monetize, and Intelligence.
- Investing in creative technology and programmatic exchange growth.

## Why Work Here
- **Culture**: Emphasizes data-driven decision-making, agency and urgency, collaboration (“in this together”), and a growth mindset. Employees are encouraged to experiment and learn from failure.
- **Work environment**: Remote-first company with global hubs for purposeful in-person collaboration. Flexible remote work options available across many roles.
- **Benefits**: 
  - Unlimited time off
  - Stock options
  - 401(k) / pension plans with matching
  - Healthcare (health, dental, vision)
  - Connectivity stipend (mobile phone and home internet)
  - Lifestyle stipend (health, wellness, pet, groceries)
  - Professional development support
  - Office snacks and fun team gatherings
- **Diversity & inclusion**: Offices across 10+ locations worldwide; values diverse perspectives.

## Sources
1. [liftoff.ai](https://www.liftoff.ai/)
2. [liftoff.ai/company](https://www.liftoff.ai/company/)
3. [liftoff.ai/company/careers](https://liftoff.ai/company/careers/)
4. [liftoff.ai/company/careers/jobs](https://liftoff.ai/company/careers/jobs/)
5. [builtin.com/company/liftoff](https://builtin.com/company/liftoff)

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