Senior Full-Stack Engineer (BE focused)
Omnisend
Lithuania
December 02, 2025
Apply NowSenior Full-Stack Engineer (BE focused)
Vilnius, Lithuania / Kaunas, Lithuania
Product development /
Full time /
Hybrid
Working at Omnisend is... kind of boring.
Not the soul-crushing kind of boring — more like the “no drama, no chaos, just smart people doing great work” kind. The kind that lets you focus on what matters, without pointless meetings, micromanagement, or bureaucracy. We’re data-driven. We test, we iterate, we improve. Gut feelings don’t drive decisions — insights do. We trust each other. We’re transparent, give real feedback, and actually listen. No egos, no hand-holding — just a team of experienced professionals moving fast, adapting easily, and delivering impact. Omnisend is customer-funded and customer-driven. Our work is rooted in solving real problems that help ecommerce brands grow. No empty promises — we bring in results. And yes, we have fun. But the grown-up kind — workations, team gatherings, the occasional party. No forced fun, no awkward icebreakers. Just genuine moments with a team that actually enjoys working together.
What you’ll do @Omnisend:
- Play a key role in the Content Creation team, influencing product development decisions
- Build a product that enables customers to craft relevant and impactful marketing messages for their audience
- Use your technical expertise to solve complex problems
- Leverage AI to streamline your daily operations and build AI solutions that drive real value for our customers
We expect that you’ll bring:
- Hands-on experience (5+ years) implementing and maintaining scalable, highly available systems with a strong focus on performance and user experience.
- Experience with Golang, or strong proficiency in another backend language with a willingness to learn Go.
- Familiarity with modern software build pipelines and tools
- Proficiency in any database
- Experience with real-time distributed messaging tools, like NSQ, Pub/Sub
- Experience with any cloud provider (at Omnisend we use Google Cloud Services)
- Experience with event-based architecture
How we work and what we value:
- Company-wide OKR
- Empowered product teams that solve customer and business problems
- Objective-based planning and experimentation-driven delivery
- Product-led growth
- We look at product metrics daily, we speak to our customers, and do it often
- Outcomes and bringing value to our customers over outputs and feature factories
- Ship to learn. Experimentation to validate hypotheses and assumptions
- Truly embracing data-driven decisions
What we offer in return:
- Gross salary starting point from 5500 EUR/month based on experience
- Quarterly salary reviews
- An unlimited learning budget for self-improvement complying with the best interest of Omnisend
- Working methods and best practices inspired by the best tech companies in Silicon Valley
- Over 80% senior colleagues in Product - and over half company-wide - to accelerate your growth
- Flexible working hours and remote work possibilities
- Private health insurance
- Unlimited access to psychotherapy
- Workstation budget
- Personalized work anniversary gifts (house cleaning, spa treatments, international flights etc.)
- Annual company trip abroad, company gatherings twice a year, team-led teambuildings
- Additional days off for KASP and Rifleman’s Union members
- Inclusive family-related time-off policy
We may use artificial intelligence (AI) tools to support parts of the hiring process, such as reviewing applications, analyzing resumes, or assessing responses. These tools assist our recruitment team but do not replace human judgment. Final hiring decisions are ultimately made by humans. If you would like more information about how your data is processed, please contact us.