ChallengeRocket
  • Product
    • Recruitment Challenges
    • Skill Assessment
    • Direct Hire
    • Hackathons
    • Intern Challenges
  • Challenges
  • Case-studies
  • Employers
  • Log in
  • Join talent network
  • Book demo
Menu
  • Home
  • Job offers
  • Kraków
  • Java Developer
  • Software Engineer Expert

Offer is no longer available

Software Engineer Expert

Codewise - view profile

December 18
  • Kraków, Poland
  • Mid
  • ASAP
  • Full-time
  • Contract of Employment
  • English (B2)
  • Hybrid
Codewise
16 000 - 19 000
Net / monthly
Apply now
  • Company size
    50-249
  • Team size
    3
www.codewise.com

Job description

About you


No matter if you are an expert in writing latency sensitive high throughput and high performance data processing applications in java or just starting the journey. You will be welcome in our small, highly intelligent team where your voice will be equally heard.

You will redefine processes and tools without the need to argue with architects or bureaucrats. You will learn to show mechanical sympathy to all hardware, large and small. You will experiment and apply learned skills at scale while processing gigabytes of data in milliseconds. You will build systems that impact the whole company and waiting to deploy them to production for one hour will seem unacceptably long.


About the company


We move fast and break things. We pride ourselves in having minimal bureaucracy, leaving key decisions in the hands of employees, relying on their ingenuity and initiative to drive products further.  Our bread and butter is Internet marketing. Our two core products are Zeropark (internet traffic marketplace) and Voluum - cloud-based tool for tracking marketing campaigns with data analytics and AI automation.



About the project


We do streaming data ingestion and online analytics using our custom made database (written in Java). We design tests that ensure the integrity of all the processed data. We run automatic builds, deployments and performance tests with feedback from profilers. Deployments happen every day. We strive to pay technical debt on time. We automate all possible QA testing steps and update them when a new feature is developed. Developers write all unit and integration tests.


We run on Java 14, use EC2 and S3 services. We DO NOT run on Kubernetes. Our DB manages more than 300 terabytes of data. We use libraries like RxJava, Disruptor, Agrona, Aeron, Netty, Kotlin, Spock.



What we offer





Must have

  • Java
  • GC
  • data
  • Automation Testing
  • API

Nice to have

  • linux
  • AWS
  • Web Development

Responsibilities

  • Take active part in designing architecture of the system
  • Analyse requirements from (internal) client perspective while taking into consideration performance, time and cost
  • Implement new services and APIs used by all products in the company
  • Design and conduct experiments to improve our algorithms and overall architecture
  • Ensure applications have proper end to end tests, monitoring and documentation
  • Create production clusters (Terraform), deploy to production (EC2), verify deployments
  • Provide support for production services (PagerDuty)
  • Investigate and implement new technologies (e.g. JVM features) related to data processing, application performance, performance monitoring, infrastructure


Requirements and qualifications

  • Ability to look at the system from the perspective of clients (other dev teams)
  • Capacity for learning and investigating how things work
  • Good programming skills in Java
  • Knowledge about garbage collection
  • General knowledge of the issues of cloud computing and data processing
  • Good command of written and spoken English



Benefits

  • Sport card
  • Private medical care
  • Private parking
  • Flexible working hours
  • Free coffee
  • Bike parking
  • Playroom
  • Library
  • Shower
  • Canteen
  • Home office possible
  • Other
  • Fresh fruit and vegetables
  • training budget
  • private gym

Increase your chances of getting this job

  • Prove your
    skills online
    Show your talent in Skill Verification Challenges
  • Apply with CV+
    Verified Skill Profile
    You decide which skills you want to reveal
  • Recruiter see
    your verified skills
    Not just resume. It makes you stand out against other candidates
  • Invitation to
    final interview
    Faster. Based on skills you demonstrate not just declare on CV
Leave feedback
Save for later

Send this job offer to your e-mail address

ChallengeRocket
Tech talent
Challenges Blog Find jobs Employers
Companies
Business HR Blog Pricing
Challengerocket
FAQ EU Join Us Contact Us
Copyright © 2023 ChallengeRocket. All rights reserved.
Privacy Terms and Conditions Service status

Let’s talk

Proven effectiveness - get up to x3 more candidates and shorter recruitment time.

In view of your consent, the data you provide will be used by ChallengeRocket Sp. z o.o. based in Rzeszów (address: Pl. Wolności 13/2, 35-073, +48 695 520 111, office@challengerocket.com) to send messages as part of the newsletter subscription. Don't worry, only us and the entities that support us in our activities will have access to data. All information on data processing and your rights can be obtained by contacting us or at www.challengerocket.com in the Privacy Policy tab.

We will reply within 2 business days.

Log in


Forgot your password?

OR
Don’t have an account?
Create a candidate account or a company account

Log in

Forgot your password?

Create a candidate account

Apply without account
Apply without account
Already have an account?
Log in
OR
  • At least 10 characters
  • Uppercase Latin characters
  • Lowercase Latin characters
  • At least one number or symbol

Not a candidate?  Sign up as an employer

Reset your password

Remember your password? Log in Log in for business

Create an employer account

Sign up for free.
Select the best plan to publish job ofers & challenges.

Company name introduced here will be visible on your job ads.
  • At least 10 characters
  • Uppercase Latin characters
  • Lowercase Latin characters
  • At least one number or symbol

Not an employer?  Sign up as a candidate