Senior Software Engineer I, Email

Description

The company makes a customer engagement platform that helps brands send personalized, cross-channel messages and journeys, including AI-driven decisioning.

Analysts count the company as a leader in marketing technology, and its software won a 2025 G2 award in marketing and digital advertising.

U.S. News and World Report, Newsweek and Fortune ranked the company among the best places to work in 2025, and it holds Great Place to Work certification in the US, UK, Australia and Singapore.

The company is headquartered in New York and has offices in Austin, Berlin, Bucharest, Chicago, Dubai, Jakarta, London, Paris, San Francisco, São Paulo, Singapore, Seoul, Sydney and Tokyo.

The team values high standards, cooperation and a healthy balance between work and life while the company grows quickly worldwide and works to widen equity and opportunity.

People here act on their own judgment, take ownership, and stay open to other views. Curiosity and outside interests shared with colleagues add to the culture.

This suits you if you enjoy hard problems, move quickly when things change, and want real impact on a strong team.

Responsibilities

• Join the Email team, which builds and runs the core infrastructure that sends billions of personalized emails a month to end users of the company's customers and processes all related reporting data.
• Work on a highly parallel platform that personalizes and sends email at very large scale, REST APIs that manage and track subscriptions, web pages where end users set their own preferences, and dashboards for configuring customer email domains.
• Build new features, improve performance, and advise on major architecture decisions with your teammates.
• Design new versions of critical components and make the systems more resilient as they grow.
• Help the team become stronger engineers while learning from colleagues in return.

Requirements

• Have 5+ years of full-stack development experience.
• Be an experienced technical leader.
• Have a strong grasp of design, data structures and algorithms.
• Work independently, communicate and organize well, and have worked in a team before.
• Bonus: professional experience building software at scale.
• Bonus: professional experience with Ruby, Go, TypeScript or JavaScript, MongoDB or Postgres, and Ruby on Rails or React.
• Bonus: experience with agile processes.

Conditions

For candidates based in the United States, starting base pay is expected to be between $128,842 and $232,200 per year, with expected On Target Earnings between $144,000 and $258,000 per year including bonus or commission.

The final offer may vary based on market location, job-related knowledge, skills and experience.

The role is hybrid.

Benefits vary by location, so check the offerings for your country. Full benefit details are shared with an offer.

The company is an equal opportunity employer and encourages you to apply even if you do not meet 100% of the criteria.

AI-assisted tools screen applications for experience, skills and qualifications, and may amount to solely automated decision-making. AI also supports scheduling, interview recording and note summaries, while recruiters make all hiring decisions.

You can opt out of AI-assisted review of your application through the Learn More option on the application form, separately for each role you apply to. Other requests about AI use in recruitment, including a manual review or contesting a decision, go to the talent acquisition team.

Summaries of the most recent bias audit results for these tools are published.

Benefits

• Competitive compensation that may include equity, including restricted stock unit grants as part of the total rewards package.
• Retirement and employee stock purchase plans.
• Flexible paid time off.
• Medical, dental, vision, life and disability coverage.
• Family services including fertility benefits and equal paid parental leave.
• Professional development with formal career paths, learning platforms and a yearly learning stipend.
• An in-office experience designed to build community, team connections and innovation.
• Volunteer Week and donation matching.
• Employee Resource Groups.
• A collaborative, open and fun culture.