Senior Backend Engineer

Text; Wrocław; Hybrid; PLN 240,000 - 320,000; Full time

Benefits offered by this job

Multisport card

Private health care

Home office equipment budget

Unlimited paid days off

Hybrid work model

Job summary

Text is seeking a Senior Backend Engineer to own the SSO and account services that power our billing and authentication across Text products. You will shape technical solutions, coordinate with product managers and engineers, and ship impactful features with full ownership.

You’ll drive end-to-end backend work, maintain production systems, and push for robust, scalable solutions. This role blends architecture, collaboration, and hands-on coding in a fast-moving environment.

Qualifications

• Deep knowledge of OAuth 2.0 at the protocol level.
• Strong Go experience in production.
• Experience with MySQL.
• GCP and Kubernetes familiarity.
• Track record owning backend projects end-to-end.

Responsibilities

• Own the SSO service and OAuth implementation — lead technical decisions, propose improvements, communicate trade-offs to stakeholders.
• Work on text-billing: subscriptions, usage-based pricing, payment provider integrations.
• Drive projects end-to-end: take business requirements, design the solution, coordinate dependent teams, set milestones, ship it.
• Proactively maintain your services — flag issues before they become incidents, propose fixes before they become blockers.
• Contribute to ongoing cross-company work: client migration to TextApp, ACAM role management improvements.

Skills

OAuth 2.0 protocol knowledge

Go experience

MySQL

GCP

Kubernetes

Backend project ownership

Cross-team communication

AI-native tooling

Job description

The Accounts & Subscription teams own billing and authorization - two services that everything else at Text depends on. That means text-billing (subscriptions, usage-based pricing, payment provider integrations) and SSO with account management, including the OAuth implementation that sits at the base of how clients authenticate across Text products.

Current projects include things like integrating with Google Payments, building a flexible role and permissions system (ACAM), and migrating customers from the legacy platform to TextApp.

About the role

We're looking for a Senior Backend Engineer to join as the technical owner of SSO and account services. The work here isn't just backend coding - it's taking a business requirement, designing the technical solution, aligning dependent teams across the company, and getting it shipped. You'll sit at the center of some of the most cross-functional projects at Text, working closely with product managers on the business side and engineers across the org on the technical side. If you want full ownership over services that actually matter - and the autonomy to shape how they evolve - you got this.

What you'll do

• Own the SSO service and OAuth implementation — lead technical decisions, propose improvements, communicate trade-offs to stakeholders.
• Work on text-billing: subscriptions, usage-based pricing, payment provider integrations.
• Drive projects end-to-end: take business requirements, design the solution, coordinate dependent teams, set milestones, ship it.
• Proactively maintain your services — flag issues before they become incidents, propose fixes before they become blockers.
• Contribute to ongoing cross-company work: client migration to TextApp, ACAM role management improvements.

Who you are

• Owner, not ticket-taker. You notice problems before they're assigned to you, propose fixes, and push them forward. If a dependency is stuck, you move it.
• Fluent in auth at the protocol level. You understand OAuth — not as someone who adds a login button, but as someone who knows the flows, the token types, and what goes wrong when they're implemented incorrectly.
• Cross-team communicator. You're comfortable presenting technical solutions to non-technical stakeholders and making sure external teams deliver what you need to close a project.
• Pragmatic. You balance doing it right with shipping it. You've maintained production systems and can defend your tradeoffs.
• AI-native. AI coding tools — Cursor, Claude Code, or similar — are part of how you work, not something you occasionally try.

You're a great fit if you have

• Deep understanding of OAuth 2.0 at the protocol level — flows, token types, authorization models. Experience implementing OAuth (not just consuming it) is a strong advantage.
• Strong Go experience in production. If you have solid backend fundamentals and deep OAuth knowledge from another language, the switch to Go is workable — but it will need to happen.
• Solid MySQL experience.
• GCP and Kubernetes familiarity.
• A track record of owning backend projects end-to-end: design, cross-team coordination, and delivery — not just the implementation.

Nice to Have

• Experience with billing, subscriptions, or payment systems.
• ClickHouse or similar columnar databases.

How we work

We’re a hybrid team – remote when it makes sense, onsite when it matters most.

Once per quarter, your whole team spends 5 working days together at our Wrocław office – a time for focused execution, unblocking work, and driving key outcomes.

Our office is open year-round – drop by anytime.

Contract: B2B (self-employed)

You’ll need a registered business in selected EU countries — either already set up or possible to register in your country.

We don’t want you to worry about all the basic benefits - like a Multisport card, private health care, or a home office equipment budget.

What we really want you to feel and what we believe in is that the real benefits come from the culture we’ve built.

With a hybrid work model, unlimited paid days off and sick days policy, an environment focused on outcomes instead of worked hours, and people dedicated to their work, you’ll find a workplace where you can thrive.

And here’s the icing on the cake: you’ll have the opportunity to work with the makers behind all Text products: LiveChat, ChatBot, HelpDesk, KnowledgeBase, OpenWidget.