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Apollo.io is a leading go-to-market platform trusted by over 500,000 companies globally. Founded in 2015, the company has raised approximately $250 million and is valued at $1.6 billion. Apollo provides sales and marketing teams with verified contact data for over 210 million B2B contacts and 35 million companies, along with tools to engage and convert prospects in a unified platform.
As a Senior Backend Engineer, you will be a critical part of the growing engineering team, working on high-impact domains including data platform architecture and integrations with distributed systems. You'll build the infrastructure powering Apollo's AI-driven internal workflows. On the data side, you'll organize and structure data at scale, working with the data engineering team to build pipelines that enable intelligent product experiences. On the integrations side, you'll own the connections layer and distributed architecture that keeps Apollo reliably linked to the broader ecosystem at high throughput.
You will design and implement highly scalable backend services, data pipelines, and integration endpoints that perform reliably at high volume. You'll gather product and engineering requirements, write design documents, and drive technical discussions to align cross-functional stakeholders. You'll drive the full software development lifecycle from product requirements through architecture, solution design, development, quality assurance, and maintenance. You'll build systems with observability as a first-class concern, ensuring proper monitoring, alerting, and dashboards so issues are caught before customers notice.
You'll communicate development progress clearly to product leads, engineering managers, and other stakeholders. You're comfortable introducing new technologies and AI tools that accelerate your workflow and the team's. You navigate ambiguity proactively, finding paths forward when projects hit obstacles. You work effectively as part of a large global team, attending scrum ceremonies, team events, and manager 1:1s, and provide and respond to technical and behavioral feedback.
Tech stack includes React.js, TypeScript, Python, GoLang, MongoDB, Elasticsearch, Redis, Kafka, Kubernetes, Docker, GCP, Terraform, Ansible, Grafana, Kibana, and GitHub Actions.
QUALIFICATIONS:
- Minimum 5 years of industry experience in backend development, with at least 1-2 years in senior positions developing large-scale applications
- Experience developing distributed web applications at scale
- Code that is comprehensible, well-structured, and highly performant
- Experience with database modeling (SQL or NoSQL)
- Experience using and designing RESTful services
- Strong knowledge of computer science fundamentals, including data structures, algorithms, and object-oriented design
- Proven experience leveraging AI tools to enhance software development processes, including code generation, debugging, and productivity optimization, with willingness to stay current with emerging AI technologies
- Background in fast-scaling startup or high-velocity environments where going beyond your job title was the norm
Must have: Communication skills, problem solving, proactivity, team player mentality, listening skills, creativity and innovation, organization and planning, dealing with ambiguity, ownership of projects from start to finish, distributed web development.
Nice to have: BS or MS degree in Computer Science, Computer Engineering or similar; GCP, Kubernetes, Docker, Mongo, Redis, Ruby on Rails, microservices, machine learning.
