Software Engineer

Infobip LAB

Katowice

On-site

PLN 132,000 - 176,000

Full time

5 days ago

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Job summary

Infobip LAB in Katowice is seeking a mid-level Software Engineer to help deliver scalable backend services for OTT messaging. You will work on features end-to-end, including design, implementation, tests, and production support, in a globally connected engineering team.

You will collaborate with product and other engineering teams, use Java/Spring Boot, Maven, Git, and automated tests, and contribute to production observability and reliability. English communication is essential.

Qualifications

3+ years building backend services (or equivalent depth).
Strong Java and Spring Boot; comfortable with Maven, Git, and automated tests.
Shipped and operated production systems: logs, metrics, incidents.
Able to take a vaguely specified problem and propose a design with stable quality.
Write clear, reviewable code with good tests and documentation.
Communicate in English with engineers and product teams.

Responsibilities

Own features end-to-end: design, implement, test, rollout, and production follow-up.
Build and maintain Java/Spring Boot backend services for OTT messaging.
Work with partner APIs and webhooks, including upgrades.
Contribute to production support: incidents, bugs, fixes.
Improve reliability, observability, and quality of the systems touched.
Mentor junior colleagues as you grow in the role.

Skills

Java

Spring Boot

Maven

Git

Automated tests

English

Backend development

Observability

Tools

Kafka

Docker

OpenAPI

PostgreSQL

Job description

Working at Infobip means being part of something truly global. With 75+ offices across six continents, we’re not just building technology — we’re shaping how more than 80% of the world connects and communicates. As employees, we take pride in contributing to the world’s largest and only full‑stack cloud communication platform. But it’s not just what we do, it’s how we do it: with curiosity, passion, and a whole lot of collaboration. We operate with an AI‑first mindset, embedding intelligent tools into our daily workflows to work smarter and more efficiently. Every role here benefits from and contributes to this approach. If you're looking for meaningful work and challenges that grow you in a culture where people show up with purpose, this is your opportunity. Let’s build what’s next, together.

What this role is all about

Being part of Infobip Engineering means working on an in‑house product used worldwide. As a Software Engineer you will help deliver scalable, highly available messaging services that companies use to reach customers on OTT channels such as WhatsApp, Viber, Apple Messages for Business, Zalo, Kakao, LINE, Messenger, Instagram, TikTok, and others. You will join OTT Channels engineering in Katowice. We connect enterprises to these platforms: onboarding, sending and receiving messages, templates, payments, and billing — and we keep that working when partners change APIs, pricing, or rules on short notice. This is a mid‑level role. You already deliver complex work without being walked through every step, you care about production, and you can propose a design — not only implement a ticket. You will start in one product area (for example traffic, onboarding, templates, or billing) and grow into neighbouring ones. You will not be expected to know every channel on day one.

What you’ll do

You will own features end to end: design, implementation, tests, rollout, and production follow‑up — not only “the coding part”
You will build and maintain Java / Spring Boot backend services for OTT messaging
You will work with partner APIs and webhooks, including version upgrades and programmes with tight deadlines
You will take part in production support: investigate incidents, separate supplier issues from our bugs, and ship fixes
You will improve reliability, observability, and quality of the systems you touch
You will review code, write tests, and keep a high definition of done.
You mentor more junior colleagues as you grow into the role
You will use AI as part of the daily workflow (code, tests, docs, investigation)
You will work closely with Product and other engineering teams across Infobip

What makes you a strong fit

You are a Mid Engineer looking for a high‑growth challenge, with 3+ years building backend services (or equivalent depth — we care about independence more than years)
You have strong Java (or Kotlin) and Spring Boot; you are comfortable with Maven, Git, and automated tests
You have shipped and operated something in production: logs, metrics, incidents, not only green unit tests
You can take a vaguely specified problem, break it down, propose a design, and deliver it with stable quality
You write code others can review: clear, tested, no cleverness for its own sake
You communicate in English with engineers and product; you ask for feedback and give it
Curiosity about integrating with third‑party platforms beats prior experience with a specific channel

Nice‑to‑have qualifications

Kafka, REST APIs, OpenAPI
Relational and/or document databases; Redis, CI/CD, Docker, high‑availability systems
Messaging, CPaaS, or payments experience
Polish is useful in the Katowice office, not required

Why you’ll love it here?

Feature team in Katowice, close collaboration with Product
Agile delivery; Jira, Git, Confluence, Slack
Production support rotation — you will learn live systems, not sit on the sidelines

Infobip’s standard benefits package

Infobip employees are people with diverse backgrounds, characteristics, and experiences that share the same passion and talent that helps us achieve our mission. That’s why Infobip is committed to creating a diverse workplace and is proud to be an equal‑opportunity employer.
All qualified applicants will receive consideration for employment without regard to race, color, ancestry, religion, age, sex, sexual orientation, gender, gender identity, national origin, citizenship, disability, veteran status, or any other part of one's identity.

Salary range for this position is 11,800 PLN gross - 15,800 PLN gross

Diversity drives connection Infobip is built on diverse backgrounds, perspectives, and talents. We’re proud to be an equal‑opportunity employer and are committed to fostering an inclusive workplace.

No matter your race, gender, age, background, or identity — if you have the passion and skills to thrive, there’s a place for you here.

All qualified applicants will receive consideration for employment without regard to race, color, ancestry, religion, age, sex, sexual orientation, gender, gender identity, national origin, citizenship, disability, veteran status or any other part of one's identity.