Senior Full-Stack Engineer, Expansion team

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.

The Expansion Product Team at Omnisend builds and maintains the core systems that power our business growth - we’re responsible for billing, pricing/monetization, and access scopes. Our work enables merchants to seamlessly log in to Omnisend, choose and upgrade their plans, manage subscriptions, and receive accurate invoices as they grow with the platform.

As part of the Growth Value Stream, we experiment, focus on the shortest path to meaningful outcomes, and constantly look for the most effective ways to influence user behavior while maintaining a reliable and scalable platform.

We’re looking for a Senior Full Stack Engineer with a preference for backend development, who is ready to play an active role in shaping engineering solutions and taking ownership of them. This role invites someone who is self driven, brings well-reasoned opinions to discussions, challenges assumptions, and proactively contributes to both technical and product decisions.

Collaborating closely with product and engineering peers, you’ll help the team build robust, maintainable systems while delivering impactful product changes in a timely manner.

What you’ll do @Omnisend::
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Contribute significantly to product development decisions

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Design, develop, and test features

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Resolve technical challenges for seamless system functionality and optimal performance

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Maintain features with effective monitoring, logging, and alerting

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Share best practices with team members

We expect that you’ll bring::
• Hands-on experience (5+ years) implementing and maintaining scalable, highly available, high load systems

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Ideally, experience with Golang or alternatively proficiency in any backend programming language with the willingness to learn Golang

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Comprehensive knowledge and experience with a modern front end framework (in Omnisend we use React, Angular)

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Experience with back-end technologies (Node.js, Go) to handle server-side logic and API interactions

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Experience with writing unit and integration tests self sufficiently

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Familiarity with debugging your own and others code to identify and fix issues effectively

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Familiarity with modern software build pipelines and tools

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Experience with real time distributed messaging tools and event based architecture

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Working experience with any cloud provider (at Omnisend we use Google Cloud Services)

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Customer centricity

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Proficiency in any database, Mongo DB primary

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Experience using best practices in system design, architecture and micro services is a big advantage

How we work and what we value::
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Company-wide OKR

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Empowered product teams that solve customer and business problems

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Objective-based planning and experimentation-driven delivery

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Product-led growth

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We look at product metrics daily, we speak to our customers and do it often

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Outcomes and bringing value to our customers over outputs and feature factories

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Ship to learn. Experimentation to validate hypotheses and assumptions

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Truly embracing data-driven decisions

What we offer in return::
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Gross salary starting point from 6500 EUR/month based on experience

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Quarterly salary reviews

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An unlimited learning budget for self-improvement complying with the best interest of Omnisend

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Working methods and best practices inspired by the best tech companies in Silicon Valley

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Senior colleagues (over 70%) enable us to have a high-performing, productive environment where your growth will accelerate

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Flexible working hours and remote work possibilities

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Private health insurance

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Unlimited access to psychotherapy

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Workstation budget

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Personalized work anniversary gifts, such as house cleaning, spa treatments, international flights etc.

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Attractive workations and team-led team-building events

Omnisend is a customer-centric product-focused company where you will be instrumental in creating a global product — Email and SMS marketing platform to drive rapid e-commerce stores growth and accelerate online businesses expansion, a platform with a well-established position in the US.

Seamless integration with all major Ecommerce platforms, ready-made automation and email templates, flexible segmentation, and award-winning 24/7 customer support — Omnisend makes it simple for businesses of all sizes to sell more without breaking the bank. "Great marketing needs to be expensive" is proven to be wrong every day by 150,000+ Omnisend customers who are successfully growing their businesses through Email and SMS marketing. Every $1 spent on Omnisend platform makes 68$ on average for our customers.