R&D Engineer
Job description
MailerLite is one of the fastest-growing email marketing services. We help more than 1 million businesses around the world stay in touch with their customers. Today, we are a team of more than 170 dreamers, adventurers, and world travelers passionate about what we do and what we believe in. And we are ready for another talented person to join the party.
We are looking for a hands-on and curious R&D Engineer to help us accelerate the innovation at MailerLite. You will work directly with the CTO on early-stage ideas, involving rapid prototyping of new features and exploring cutting-edge tech—from MCPs to AI-powered workflows. This is not a slow-moving role—it is a high velocity position where speed, creativity and curiosity are key. Join us now! 🚀
Why MailerLite?
Wondering why we think you’ll love working for MailerLite?
Work directly with the CTO on high-impact and high-visibility projects
Freedom to experiment with the latest technologies and ideas
Be the driver of innovation—your prototypes could become core product features
You will improve internal processes with the use of LibreChat and Agents for all other internal teams
What you will work on
Rapid prototypes: Build, ship, learn, test, and iterate fast
AI & Automation: Explore and integrate AI tools (OpenAI, Claude, Gemini)
MCP & API development: Maintain and develop our MCPs and extend MailerLite’s capabilities
Tech research: Stay ahead of industry trends, experiment with new tools and bring forward innovative solutions
Direct impact: You will work closely with the CTO on R&D priorities and shape the next-gen of the MailerLite platform
What we expect from you
Strong development background: Proficient in at least one major programming language. We use PHP & Laravel, but for this position we expect someone stronger at Typescript, Python or Go. Language is not important as long as you have a proven history of adapting to new technologies and languages, and are not afraid to learn new ones as they come by
Experience with AI/LLMs: We know that these tools haven’t been on the market for long, but we are looking for someone with practical experience using APIs like OpenAI/Anthropic/Gemini
API & System knowledge: REST APIs, webhooks, distributed systems design
Fast iteration mindset: Ability to go from idea to prototype to validation quickly
Curiosity and autonomy: You have a love of experimenting, are self-driven, and thrive in a "figure it out" environment
Familiarity with MCPs: We truly believe that MCPs are the future of AI interaction, and we have our own - MailerLite and MailerSend MCPs
Based in EMEA - 6h overlap with CET
What we offer
Yearly gross salary range: $50,000 - $84,000
Remote-first culture with the team working remotely from all over the world
International health insurance provided with coverage in most countries. Monthly healthcare payout available in select countries where coverage is limited
Company-paid retreats. Once per year we gather for a week in an exotic location to work, learn and have fun together
31 days of vacation per year. We encourage you to unplug and recharge!
12 paid sick days for your physical and mental well-being, no doctor's note required. Parents can use them to care for their sick children
4 creative days. One paid day off per quarter to do something creative and fun
12 parental days per year. Enjoy one paid day off each month to treasure time with your children
Parental leave. Enjoy paid bonding time at 100% of your salary when welcoming a new child into your family through birth or adoption - 3 months for primary caregivers and 1 month for secondary caregivers
Joy Budget. Annual allowance to spend on what brings you joy, starting at $1,000 per year and increasing over time
MacBook and other tools that'll help you to do your job efficiently
Check the full list of our awesome benefits here
Meet your Team Lead
Nikola
I’m Nikola, CTO at MailerLite. I’ve been in the company for 8 years. I enjoy guitars, pedals, amps, and 3D printing. The things I value the most are clear communication and honesty. Our team lives by simplifying complicated things. I #lovemyjob because work doesn’t feel like work. It feels like a hobby, and it’s fun to do!
We focus on people
Our company is built on core values that shape our supportive culture. We strive to create a welcoming, valued workspace that fosters freedom, creativity and mutual respect.
Interested?
Don't send us a CV. We like to do things differently. We're excited to see the newsletter you come up with.