ApolloAP

Senior Backend Engineer

Apollo is the foundation of your entire go-to-market strategy.

Apollo

Employee count: 1001-5000

Poland only

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.

**This is a Permanent EoR role and not a B2B Contract**

YOUR ROLE MISSION

As a Senior Backend Software Engineer, you will be a critical part of our growing company, working on a cross-functional team to implement best practices in technology, architecture, and process. You'll have the chance to work in an open and collaborative environment, receive and give hands-on mentorship and have opportunities to grow and accelerate your career. You love both learning and teaching. In this role, you will be interfacing with design, front-end, analytics, as well as teams outside of Engineering. You enjoy working cross functionally to solve hard problems and make an impact. At Apollo, you strive for quality, and are obsessed with improving quality, automation, and squashing any bugs that sneak through. You have a drive to constantly investigate performance improvements and innovative ideas.
Our tech stack is React.js/Redux/Node.js on the front end, Ruby/Ruby on Rails/MongoDB/Redis/Elasticsearch on the backend, and Kubernetes/Docker/Ansible/Terraform in infrastructure.

DAILY ADVENTURES RESPONSIBILITIES

  • Design and implement highly scalable backend endpoints
  • Gather product requirements and write design docs to satisfy product needs
  • Drive/Lead full lifecycle of software development: product requirements, architecture, solution design, development, quality assurance, and maintenance
  • Mentor others on best practices and effectively share knowledge
  • Ability to effectively communicate development progress to the product lead, engineering manager, and other stakeholders
  • Be comfortable introducing new technologies and new ideas as required
  • Work effectively as part of a large global team
  • Attend and engage in scrum ceremony meetings, team parties, and manager 1:1s
  • Provide feedback to co-workers in written and verbal form and respond to technical and behavioral feedback from managers and peers

COMPETENCIES

  • Proactively acts without being told what to do. Able to identify areas of improvement and driving best practices to deliver high quality, performant, and scalable solutions
  • Develops services that are highly available and scalable with proper monitoring and alerting in place
  • Able to up-level the team by sharing knowledge and best practices with the engineering team
  • Able to deal with ambiguity
  • Ownership of projects from start to finish. Just because the project has been deployed doesn’t mean it’s done
  • Organized and able to effectively plan and breakdown large projects into smaller tasks that are easier to estimate and deliver
  • Lets others speak and seek to understand their viewpoints
  • A creative and innovative problem solver previous experience working in an agile, startup environment
  • Confident in owning your role, and bringing creative ideas to the hands of our users

QUALIFICATIONS

  • Minimum 5 years of industry experience in backend development, at least 1-2 years in senior positions, developing large-scale applications
  • Experience developing distributed web applications
  • Your code is comprehensible, well-structured, highly performant
  • Experience with database modeling (SQL or NoSQL both OK)
  • Experience with 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. Candidates should demonstrate fluency in integrating AI-driven solutions into their workflows and a willingness to stay current with emerging AI technologies
Must have: Communication Skills, Problem Solving, Proactivity, Team Player, 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

Why You’ll Love Working at Apollo

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.

About the job

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Posted on

Job type

Full Time

Experience level

Senior

Location requirements

Hiring timezones

Poland +/- 0 hours

About Apollo

Learn more about Apollo and their company culture.

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Apollo is the foundation of your entire go-to-market strategy.

Apollo is the unified engagement acceleration platform that gives reps the ability to dramatically increase their number of quality conversations and opportunities. Reps are empowered to do more than just conduct outreach, they learn who to target, how to reach out, and what to say at speed and scale. We help drive growth and success by providing the means for teams to discover and utilize their organization’s unique best practices.

Apollo is backed by Y Combinator, SV Angel, Nexus Venture Partners, and Social Capital. Our mission is to connect companies that have great products with businesses that need them.

Employee benefits

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Performance bonuses

Performance bonuses on top of salaries.

Equity benefits

Every employee gets equity, so you are rewarded for your best work.

Healthcare benefits

Medical, dental, and vision insurance for employees and dependents.

Retirement benefits

Generous 401(k) and regional retirement plans to help you invest in your future.

View Apollo's employee benefits
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Apollo

Company size

1001-5000 employees

Founded in

2015

Chief executive officer

Tim Zheng

Employees live in

View company profile

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Apollo hiring Senior Backend Engineer • Remote (Work from Home) | Himalayas