back end software engineer

At GWI we’re always looking for extraordinary people who thrive on making an extraordinary impact. Right now we’re looking for a Backend Engineer to play a key role in our Revenue & Enablement team in Athens. If that’s you, and making a difference gets you out of bed in the morning, keep reading. It could be the start of something, well, extraordinary.

Sounds great, what will I be doing? 🤔

As our Backend Engineer you’ll help build and maintain the backend systems that support GWI’s monetization strategy and broader platform capabilities that enable teams to deliver targeted features, messaging, and insights to our customers.

You’ll work on services powering billing flows, subscription logic, and entitlements, while also contributing to tools that support customer feature management, analytics integration, and messaging infrastructure (e.g. mailers, lifecycle communications). These systems are used both directly and indirectly by product teams, operations, and commercial functions across GWI.

Our backend stack is primarily written in Go, deployed on Google Cloud, and integrates with systems like Stripe, Salesforce, and internal admin platforms. You’ll collaborate closely with engineers, product managers, and designers to deliver robust and scalable services that sit at the intersection of platform infrastructure and customer-facing functionality.

It’s also fun; shaking things up is what working for a growing company is all about. So you’ll need to be flexible, comfortable with continuous change, and working in a high-tempo environment as we grow.

What do I need to bring with me? 🧳

We’re looking for a motivated and capable backend engineer who enjoys solving complex problems and building robust platform services. You don’t need to tick every box, but here’s what will help you succeed:

👉 Proven experience in backend development using Go, Java, C#, Node.js, or similar languages

👉 Strong understanding of API design, performance, and security best practices

👉 Familiarity with payment systems, subscription logic, third-party integrations (e.g. Stripe, Salesforce), and internal tools

👉 Experience with cloud infrastructure, ideally Google Cloud Platform

👉 Solid understanding of testing practices, code quality principles, and version control workflows (TDD is a plus)

👉 Exposure to design patterns and architectural thinking — familiarity with Domain-Driven Design (DDD) is a plus

👉 Ability to work effectively within a cross-functional team alongside Product, Design, and Engineering

👉 Comfortable with CI/CD pipelines, Git, and Agile tools like JIRA

👉 Ownership mindset — you care about quality, reliability, and delivering production-ready code

Equally important is attitude. We want people who think big (to make an impact), ask why (to find a better way), and show respect (to everyone, at every level, all the time). Those are our values, exemplified by our leadership team, and they’re a big part of what we’re looking for in you.

What’s in it for me? 🎁

You’ll do the sort of work that got you excited about your career in the first place - not as a cog in a machine, but as an individual whose contribution matters. So gigantic job satisfaction comes as standard, but it’s only part of the package. You’ll also get: 

Global benefits 🌎: 

🌴 Tons of days off: 25 days annual leave | End-of-year office closures 

🧘 Great work-life balance: Flexitime | Early Friday finishes | Work-from-anywhere options | ‘Work from home’ budget

🏡 Family-focused flexibility: Carer days | Enhanced parental leave | Private insurance for you and your your family

💪 A commitment to YOU: Accredited learning programs | A commitment to mental and physical health | Reward and recognition programs | Career development opportunities

💛 A commitment to the community: DE&I committee | Volunteer options | 100% donation matching | Payroll giving options

Location-specific benefits 🇬🇷:

🎓 Generous training budget, including a fully paid international conference each year for Engineering and Data Science roles

📱 Mobile phone contract and restaurant ticket options 

🏥 Private health insurance plan

Put all that together and GWI is the friendliest, most fulfilling place any of us has ever worked.