Senior Full-Stack Engineer / Tech Lead

Guru Pay is an EMI based in Lithuania, with a mission to deliver personalized, boutique financial services to B2B, B2C, and C2B customers. We are highly ambitious - focusing on speed, security, and top-tier quality in everything we do.

We are looking for a Senior Full-Stack Engineer / Tech Lead to take technical ownership of one of our core product areas, such as customer onboarding, Internet Bank, or mobile.

This is a hands-on engineering role. You will set the technical direction while spending most of your time designing, building, reviewing, and running production software across backend, web, and mobile.

You will work alongside an Engineering Manager, who owns the team, people, capacity, and delivery. You will own the technical side of the area - architecture, engineering quality, technical risk, and production readiness.

What will you do?

• Own the technical direction and architecture of your product area, keeping it aligned with the product roadmap.
• Write production code across backend, frontend, and mobile - hands-on engineering will make up most of the role.
• Take on the hardest technical challenges, especially those crossing services, applications, or teams.
• Make architecture decisions around service boundaries, APIs, contracts, and data flows, and clearly communicate the trade-offs behind them.
• Set the standard for code quality, reviews, automated testing, CI/CD, and engineering practices across the team.
• Identify technical risks early and make pragmatic trade-offs between speed, maintainability, security, reliability, and regulatory requirements.
• Work with Product, Engineering, Platform/DevOps, Compliance, Risk, Security, and external partners to deliver solutions that are technically sound and production-ready.
• Own observability and production health, participate in incidents, and ensure follow-up improvements are completed.
• Reduce technical debt and knowledge silos, ensuring critical systems do not depend on a single person.
• Help the team adopt AI coding agents, automation, and shared engineering tooling effectively.

Our Stack

Backend: PHP, Laravel, Go
Frontend: React, TypeScript, Vite, Tailwind, Inertia, Storybook, Blade & Stimulus
Mobile: React Native, Expo & EAS
Data & Messaging: MySQL, Redis, RabbitMQ, S3
Platform: Docker, Kubernetes, Azure DevOps
Testing & Observability: PHPUnit, Datadog, Sentry, OpenTelemetry

What we expect

• 7+ years building and running production web systems, with experience as a Tech Lead, Lead Engineer, or senior technical owner within an engineering team.
• Strong hands-on expertise with PHP/Laravel and React/TypeScript.
• Genuine full-stack experience - comfortable owning backend services as well as customer-facing frontend applications.
• Experience designing APIs, distributed systems, service boundaries, and asynchronous architectures.
• Experience owning software end-to-end: from architecture and implementation through testing, deployment, observability, and production support.
• Comfortable working with a second backend language - Go is the one that applies here.
• Strong understanding of automated testing, CI/CD, observability, security, and production reliability.
• Ability to make and clearly explain technical decisions and trade-offs to both technical and non-technical stakeholders.
• Business-level communication fluency in English.

Nice to have

• React Native / Expo experience, including shipping mobile apps through app stores.
• Experience in FinTech, banking, payments, or another regulated environment.

What will you get?

• A salary starting from 6000 EUR gross depending on your experience
• 2nd pillar pension coverage
• Budget for professional development and certifications
• Extra vacation day on your birthday
• Flexible hybrid work from our Vilnius office or home
• Regular workations, health challenges, and other team initiatives
• Genuine technical ownership of a core Guru Pay product area while remaining deeply hands-on