Senior Full Stack Developer

Senior Full Stack Developer

About eSIM Go

Our key mission is to empower businesses to bring seamless, affordable connectivity to their customers, wherever they go. We take a disruptive approach to the traditional wholesale business model, combining best-in-class technology with Tier 1 Mobile Network Operators.

With our support, businesses all over the world are unleashing the power of connectivity — and the growth we’re enjoying is a testament to our hard work and highly skilled team. We leverage technology in everything we do, but it’s our people who really make the magic happen.

About the Role

As a Full Stack Developer at eSIM Go, you’ll be responsible for improving and maintaining our Reseller platform. You’ll be involved in the product lifecycle from ideation to deployment to maintenance, making sure we build a robust and scalable solution.

You’ll work closely with the Product and Customer Success teams to build features that provide direct value to our partners, while ensuring they are scalable and meet our quality standards. You will be the driving force behind backend tasks in a multidisciplinary team.

Key Responsibilities

• Design, write and test code following the standards defined in the squad.
• Design robust and scalable APIs to support any kind of client (Desktop, Mobile, etc).
• Manage and optimise distributed systems in a cloud environment.
• Identify repeatable tasks and write scripts to automate them.
• Write and maintain automated and regression testing scripts to ensure we deploy bug-free code.
• Write documentation both internal and external (customer-facing, release notes, etc).
• Support other business areas where backend knowledge is required.
• Support and mentor Junior developers.

Required Skills & Experience

• ~10+ years of experience working as a Full Stack Backend Developer.
• Strong computer science foundations, mostly working in distributed systems.
• Extensive experience writing scalable APIs using REST architecture.
• Experience writing code in the Golang programming language.
• Experience in a modern JavaScript web framework, e.g. Svelte, Vue.js or React.
• Experience working in an AWS cloud environment.
• Experience working in Agile environments.
• Familiar with API and WebApp security standards and authentication methods (API key, JWT, OAuth 2.0, etc).

Preferred Skills & Experience

• Bachelor’s degree in Computer Science, Mathematics or equivalent.
• Experience in other programming languages such as Java, .NET or JavaScript.
• Experience writing IaC scripts and managing CI/CD pipelines.
• Familiarity with frontend technologies such as Svelte, Vue.js or React.js.
• Experience with Event-Driven architecture.

Who You Are

• An excellent troubleshooter with a methodical approach to problem-solving.
• A strong communicator, comfortable working with stakeholders and customers.
• Comfortable working in a multicultural, multidisciplinary environment.
• Fluent in both written and spoken English.
• Collaborative and supportive, happy to mentor more junior team members.

What We Offer

• Competitive compensation package.
• Performance-based incentive programme.
• Flexible work arrangements, including remote work options.
• Access to ongoing training, workshops and professional development resources.
• Generous leave policies including vacation, sick leave and public holidays.
• Regular company events and team-building activities.
• Clear growth opportunities and career advancement paths.