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Apollo.io is the leading go-to-market solution for revenue teams, trusted by over 500,000 companies and millions of users globally, from rapidly growing startups to some of the world's largest enterprises. Founded in 2015, the company is one of the fastest growing companies in SaaS, raising approximately $250 million to date and valued at $1.6 billion. Apollo.io provides sales and marketing teams with easy access to verified contact data for over 210 million B2B contacts and 35 million companies worldwide, along with tools to engage and convert these contacts in one unified platform. By helping revenue professionals find the most accurate contact information and automating the outreach process, Apollo.io turns prospects into customers. Apollo raised a series D in 2023 and is backed by top-tier investors, including Sequoia Capital, Bain Capital Ventures, and more, and counts the former President and COO of Hubspot, JD Sherman, among its board members.
As a Senior Backend Engineer at Apollo, you'll be a critical part of a fast-growing company, working on a cross-functional team to build highly scalable systems and set the bar for how we engineer. The way we build has changed: this is an AI-native role. We're not looking for someone who also uses AI, we're looking for someone who thinks with it, forms their own hypotheses, pressure-tests what AI produces, catches its errors, and design more robustly than they could alone.
You'll work in an open, collaborative environment, give and receive hands-on mentorship, and have real opportunities to grow. You'll interface daily with design, front-end, analytics, product, and teams beyond Engineering. You enjoy working cross-functionally to solve hard problems and make an impact. You strive for quality, are obsessed with improving it, automation, monitoring, squashing the bugs that sneak through and you're always investigating performance improvements and better ideas.
Must have: Curiosity, AI-native engineering judgment, communication skills, problem solving.
Nice to have: BS or MS in Computer Science, Computer Engineering, or similar; GCP, Kubernetes, Docker, Mongo, Redis, Ruby on Rails, Microservices, Machine Learning
Apollo.io Tech Blog: deep dives into engineering, product design, and company-culture stories from the Apollo team — behind-the-scenes insight into how Apollo builds and scales its B2B sales platform.
Apollo.io is an AI-native company built on a culture of continuous improvement. We’re on the front lines of driving productivity for our customers—and we expect the same mindset from our team. If you're energized by finding smarter, faster ways to get things done using AI and automation, you'll thrive here.
At Apollo, we’re driven by a shared mission: to help our customers unlock their full revenue potential. That’s why we take extreme ownership of our work, move with focus and urgency, and learn voraciously to stay ahead.
We invest deeply in your growth, ensuring you have the resources, support, and autonomy to own your role and make a real impact. Collaboration is at our core—we’re all for one, meaning you’ll have a team across departments ready to help you succeed. We encourage bold ideas and courageous action, giving you the freedom to experiment, take smart risks, and drive big wins.
If you’re looking for a place where your work matters, where you can push boundaries, and where your career can thrive—Apollo is the place for you.
Learn more here!
Salary not disclosed for this role. See what similar remote roles pay →
Health Insurance
Dental Insurance
Vision Insurance
Mental Health Benefits
Employee Assistance Program
Wellness Programs
Life Insurance
Disability Insurance
Flexible Spending Account (FSA)
Health Savings Account (HSA)
Performance Bonus
Equity / RSUs
Pay Transparency
401(k) / Retirement Plan
Unlimited PTO
Paid Holidays
Home Office Stipend
Company Offsites / Retreats
Parental Leave
Learning & Development Budget
Emergency Travel Assistance
Employee Resource Groups
It depends on the role, and each job posting states whether it is remote, hybrid or office-based. Hybrid roles are attached to an office location, and hybrid postings that state a number ask for three days a week in the office. Remote roles are posted for a named country rather than as work-from-anywhere.
Apollo says the process varies by role, but most candidates can expect four stages: a 30-minute recruiter call, a series of one-on-one interviews with two to four team members, a task or AI-powered skill assessment for certain roles, and a final interview with senior leadership.
US job postings include a pay range, and many are tiered by location, with a higher Tier 1 range for San Francisco, New York City and Seattle and a Tier 2 range for all other US locations. For sales roles the range is on-target earnings, covering base salary plus the commission or bonus target. Ranges can span several career levels and are narrowed during the interview process. Applicants outside the US may request the salary range for their location during the interview process.
Partly. Apollo's careers pages list flexible time off with no counted vacation days, performance bonuses and equity opportunities for most roles, stipends for books, courses and home office setup, and coaching and mental health support for employees and their dependents, without a country restriction. Medical, dental and vision coverage is offered in the US, Canada, India and other supported countries. The longer list in Apollo's US job postings, including a 401(k) plan, at least 10 paid holidays a year, parental leave, life and disability insurance and FSA or HSA options, is described for US roles only.