Backend Java Engineer

Syncron Poland Sp. z o.o.

  • Opole

  • offer expired over a month ago
  • contract of employment, B2B contract
  • full-time
  • senior specialist (Senior), expert
  • home office work, hybrid work
  • remote recruitment

Technologies we use


  • Java

  • Spring Framework

  • Spring Boot

  • Hibernate

  • PostgreSQL

  • DynamoDB

  • AWS

About the project

In the role of a Java Backend Engineer, you will be working closely to the core of our flagship system in terms of data processing, performance optimization and code quality standards.

Based on your individual experience, we can offer you an adequate seniority level, as we have Associate, Regular, Senior, Principal and Expert SW Engineers.

Our tech stack: Java11/17, Spring (Web, Security), Spring Boot, Hibernate, JSF (Richfaces with Mojarra), PostgreSQL, Aurora DB, Dynamo DB, Maven, Docker, AWS (S3, EC2, Lambda)

Your responsibilities

  • Design new functionalities and solutions to problems

  • Develop back-end in Java

  • Performance optimization and constant work on the speed of processing terabytes of data

  • Influence on code quality standards

  • Work according to Agile principles

  • Write unit, integration and end-to-end tests

  • Participate in the design and development scope planning, issue prioritization, estimation and code review

  • Cooperate with other specialists: Product Owners, Data Scientists, QA, UX, DevOps

  • Analyze customer’s requirements – most of them are big brands coming from big machinery industry, automotive, space etc.

Our requirements

  • Great command of Java or any other OOP or functional language (e.g. C#, Python, Scala)

  • Practical knowledge of Spring with its modules and Hibernate

  • Back-end development skills including optimization tasks

  • Practical knowledge of query optimization techniques

  • Ability to deliver clean code, easy to read, maintain and scale

  • Experience in writing unit, integration and end-to-end tests

  • Familiarity with modern approaches to software delivery model (SaaS)

  • Great communication and analytical skills

  • Fluent English

  • BS or MS degree in Computer Science or equivalent


  • Cloud solutions (AWS preferred)

  • Experience with relational databases, other types (document or cloud DB)

  • Some front-end development experience

This is how we organize our work

Team size

  • 1-10

This is how we work

  • in house
  • agile

Development opportunities we offer

  • development budget

  • intracompany training

What we offer

  • Being yourself in an informal, low-ego and open working environment where you can truly make a difference and enjoy working with positive, passionate and collaborative people, ready to share their knowledge with you

  • Scandinavian style and company culture with work-life balance and true care for your wellbeing

  • 100% remotely / hybrid / work from Warsaw office that is centrally located (Plac Grzybowski) - depending on your plans

  • Freedom to choose the employment type: employment contract vs. B2B model

  • ! Copyrights tax benefit on an employment contract (tax-deductible expenses for software engineers = 80%)

  • Flexible working hours and no micromanagement

  • Fringe benefits (private medical insurance, multisport, life insurance)

  • Employee referral program - a bonus of 1500 EUR if the referral gets hired

  • Internal training sessions (Friday Seminars), conference and training budget in every team, free English & Swedish classes, LinkedIn Learning for all

  • Opportunity to work in a cross-functional and agile team you can learn from

  • Opportunity to take part in the development of “off-the-shelf” products, based on best practices (code review, automated tests, continuous integration)

  • We do respect one another, and we do enjoy working together – we play pool and board games (mostly online these days), organize charity activities - to name just a few

  • Remote recruitment, hiring and onboarding process


  • sharing the costs of sports activities

  • private medical care

  • flexible working time

  • fruits

  • integration events

  • corporate library

  • no dress code

  • coffee / tea

  • drinks

  • parking space for employees

  • leisure zone

Syncron Poland Sp. z o.o.

Syncron, as the first company in the field of after-sales service and inventory optimization that moved to a cloud-only strategy, is expanding its business in every corner. To facilitate it, we are growing within all parts of our organization.

We’re expanding our R&D Office in Poland – that is the cornerstone for the development of Syncron's flagship products: Inventory and EazyStock. Our engineers are divided into small interdisciplinary teams assigned to a particular product or its building block and they work on a solution design, while writing excellent code and reviewing code written by others.

Our engineers are driven by our business model – as we are a product company and the quality of our software has direct impact on our customers’ revenue, we thrive to produce high-quality code with all kinds of tests including unit, integration and end-to-end tests, in the face of constant optimization challenges. To be even more efficient, we are fully cloud-based utilizing advanced AWS infrastructure solutions.

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