Coretech

Kickstart Your Career

WE'RE LOOKING FOR YOU

We’re committed to fast growth here at CORETECH, and we mean it. Our team is rapidly expanding, as are our exciting projects for online companies around the world.

If you want to join a vibrant team of professionals, work on exciting projects with cutting-edge technology, then CORETECH could be your next career move. Check out our vacant positions.

WE'RE LOOKING FOR YOU

We’re committed to fast growth here at CORETECH, and we mean it. Our team is rapidly expanding, as are our exciting projects for online companies around the world.

If you want to join a vibrant team of professionals, work on exciting projects with cutting-edge technology, then CORETECH could be your next career move. Check out our vacant positions.

Technological Stack

Back-End

Back-End

Microservices architecture, .NET Core, NodeJs platforms and RESTful API, gRPC

Front-End

Front-End

Microfrontends architecture, JavaScript, TypeScript and ReactJs

Mobile Native

Mobile Native

Android/iOS, Swift, Java, Kotlin, Gradle and CocoaPods

Continuous Delivery

Continuous Delivery

Bitrise, Bamboo, Jenkins, Kubernetes, Docker, Rancher and Helm

Data Warehousing

Data Warehousing

Microsoft SQL Server, MongoDB and PostgreSQL

Hybrid Environment

Hybrid Environment

Private advanced premise, NGINX and Google Cloud Services

CEP and Streaming

CEP and Streaming

Kafka, RabbitMQ, SSE and Web Sockets

Production Monitoring

Production Monitoring

Istio, Kibana, ElasticSearch, Crashlytics and Grafana

Our benefits

Need more reasons to join our awesome CORETECH family? You got them!
Here are 9 perks and benefits you’ll get as soon as you onboard.

Team Activities

The company that plays together stays together. It can’t be all work – we need to have some fun, too! Each quarter, we get together on work days just to kick back for some team bonding.

CAREER DEVELOPMENT

Our goal is to provide you with all the tools you need to grow professionally. You can receive trainings, courses and certificates that will help you succeed in your career.

KNOWLEDGE SHARING

If you’ve got the knowledge, we support the sharing. Let your CORETECH family in on your know-how, and next time, they’ll return the favor.

VACATIONS AND TRIPS

Be sure that we’ll get you out of the concrete jungle a few times per year, and in touch with nature. From the seaside to the forests, fresh air and good friends make for good times.

HEALTH AND SPORT COACHING

We want our employees to feel good, and that starts with a healthy lifestyle. CORETECH is happy to provide you with a great fitness and health coach in our office.

BREAKFAST WITH A VIEW

Start your mornings in the office with a rich breakfast and a 360° view of Sofia. Guaranteed to charge your battery for the day.

TRANSPORTATION

CORETECH helps with transportation cost coverage for our employees.

GIFT VOUCHERS

Birthdays, babies, other celebrations, we’ll cover the cost if you arrange the fun.

TOP HEALTHCARE

We have you covered with additional healthcare insurance, so you get the best care if needed.

News

OUR OPEN POSITIONS

View our challenging job offerings

Senior DevOps Engineer - IT

Description

What will be your part in this awesome story?

  • Ensure the company Kubernetes infrastructure is highly available, scalable and secure by supporting and improving it in coherence with the IT and R&D requirements
  • Facilitate the delivery and operation of software created by our teams from development to distribution by building software releases and automating deployment and integration of new features, upgrades and bug fixes
  • Take an active role in root cause analysis and troubleshooting of misbehaving applications by analyzing run-time functional and performance metrics and providing post-mortem descriptions and further mitigation actions
  • Enable the uninterrupted operation of the business software systems and services by building solutions to problems that degrade their availability, performance, integrity and security
  • Participate in the analysis of the product requirements by meeting and discussing them with developers, product owners and other stakeholders
  • Be part of the planning of the delivery pipeline by estimating time required for delivery, analyzing dependencies between different software elements and improving visibility for other team members and teams
  • Ensure high operational standards by developing and maintaining in-depth knowledge and understanding of how the business software systems function and by keeping up-to-date product operation documentation and knowledge base

Requirements

What do you need in order to be part of CoreTech’s story:

  • 3+ years of experience as a SaaS Ops/Tech Ops/Infrastructure Ops/Dev Ops
  • 3+ years of experience with Docker and Kubernetes
  • 3+ years of experience with Jenkins or Rundeck, CI/CD, and infrastructure as code
  • 3+ years of experience with declarative configuration management / provisioning tools (Puppet, Chef, Ansible)
  • Experience with monitoring tools such as  Prometheus, Grafana, Sysdig, Nagios.
  • Experience with Jenkins, Jira, Confluence, Git / Bitbucket
  • Understanding of web development paradigms (RESTful APIs, pub/sub, security)
  • Experience with micro-services and supporting performant & scalable applications
  • A results-oriented, roll-up-the-sleeves-and-get-it-done attitude
  • Very good written and spoken English

Why to be part of our story is good for you?

  • Cool colleagues and family like organization culture
  • Career development
  • Multisport card
  • Food and Gift vouchers
  • Transport cost coverage
  • Additional health insurance
  • 21 holidays paid vacation
  • Flexible working hours
  • Fitness corner and coach in the office to train you
  • Fun company events
  • Massages in the office
  • Breakfast and snacks
  • Birthday vouchers
  • Wedding and new baby bonus
  • Language lessons in the office (Hebrew or English)
  • Knowledge Sharing Sessions

If you are interested in joining the CoreTech Team, send us your CV in English.

Only short-listed candidates will be contacted.

Confidentiality of all applications is assured!

*In regard with GDPR 2016/679 you hereby give your consent the personal data included in the CV/resume/motivational letter to be processed for the purposes of the recruitment and hiring process in the company.

Senior Linux System Administrator – IT

Description

What will be your part in this awesome story?

  • Deployment and management of company’s Linux Production and Staging infrastructure
  • Deployment and management of company’s Cloud Environment
  • Datacenter deployment, maintenance and configurations
  • Troubleshooting, diagnosing and fixing Software or infrastructure environment issues
  • Performing software maintenance, security updates, upgrades and configuration
  • Responsibility (hands-on) for the 24/7 operations, expansion and maintenance of the production environment

Requirements

What do you need in order to be part of CoreTech’s story:

  • 5+ years of experience in supporting large Linux based deployments
  • Experience in virtualization, automation and cloud computing
  • Experience in scripting languages – Python, Perl, Bash (at least one is a big plus)
  • Experience in working with production environment
  • Experience managing K8s/docker environments
  • Networking experience
  • Experience with monitoring tools
  • Workable knowledge of Configuration Management and Deployment Products
  • Excellent English – verbal and written

Why to be part of our story is good for you?

  • Cool colleagues and family like organization culture
  • Career development
  • Multisport card
  • Food and Gift vouchers
  • Transport cost coverage
  • Additional health insurance
  • 21 holidays paid vacation
  • Flexible working hours
  • Fitness corner and coach in the office to train you
  • Fun company events
  • Massages in the office
  • Breakfast and snacks
  • Birthday vouchers
  • Wedding and new baby bonus
  • Language lessons in the office (Hebrew or English)
  • Knowledge Sharing Sessions

If you are interested in joining the CoreTech Team, send us your CV in English.

Only short-listed candidates will be contacted.

Confidentiality of all applications is assured!

*In regard with GDPR 2016/679 you hereby give your consent the personal data included in the CV/resume/motivational letter to be processed for the purposes of the recruitment and hiring process in the company.

NOC Specialist

Description

What will be your part in this awesome story?

  • The NOC Specialist is ensuring constant availability and uninterruptible operation of the company’s multi-service environment and customers’ activity
  • The NOC Specialist is working on shifts 24/7 providing alarm surveillance, troubleshooting and resolution of the incoming system alerts and is working closely with the other company departments requesting monitoring or escalating the alerts
  • Provide surveillance and alarm reporting
  • Proactively initiate incident management process
  • Monitoring and maintaining server systems and networks
  • Use “Developer Tools” tools to monitor servers, network and customer services
  • Provide assistance to B2B Support team and alert escalation

Requirements

What do you need in order to be part of CoreTech’s story:

  • Experience with Service monitoring
  • Understanding of TCP/IP networking
  • Hands-on experience with “Developer Tools” in browser
  • Basic understanding of HTTP response code
  • Hands-on experience with TCP/IP troubleshooting tools (ping, traceroute, mtr, nslookup, netstat, route)
  • Willingness to work on shifts including nights and weekends
  • Team player

Desirable

  • Experience with PRTG and Zabbix monitor tools
  • Experience monitoring network systems, servers or storage in an enterprise environment
  • Previous NOC experience is strongly preferred
  • Experience with VMWare vSphere and Load Balancers
  • Basic knowledge in scripting languages
  • Previous experience with Windows and Linux servers
  • Experience in sports-betting

Why to be part of our story is good for you?

  • Cool colleagues and family like organization culture
  • Career development
  • Multisport card
  • Food and Gift vouchers
  • Transport cost coverage
  • Additional health insurance
  • 21 holidays paid vacation
  • Flexible working hours
  • Fitness corner and coach in the office to train you
  • Fun company events
  • Massages in the office
  • Breakfast and snacks
  • Birthday vouchers
  • Wedding and new baby bonus
  • Language lessons in the office (Hebrew or English)
  • Knowledge Sharing Sessions

If you are interested in joining the CoreTech Team, send us your CV in English.

Only short-listed candidates will be contacted.

Confidentiality of all applications is assured!

*In regard with GDPR 2016/679 you hereby give your consent the personal data included in the CV/resume/motivational letter to be processed for the purposes of the recruitment and hiring process in the company.

Senior Automation QA Engineer - R&D

Description

Duties and activities:

  • Test and verify complex web applications and middleware systems by following best practices, using manual and automated tests and creating and maintaining test plans, test cases, test notes and appropriate documentation
  • Participate in the analysis of the product requirements and evaluate information required for testing by meeting and discussing requirements with developers, product owners and other stakeholders and collecting relevant information from other sources
  • Participate in the planning of the delivery pipeline by estimating time required for testing, analyzing dependencies between different product elements and improving visibility for other team members and teams
  • Take an active role in root cause analysis and troubleshooting of misbehaving applications by analyzing run-time functional and performance metrics, tracking, testing and reporting on bugs and bug fixes

Necessary experience, skills and knowledge:

  • 4+ years of experience as a QA Engineer
  • 3+ years of experience testing commercial web-based software products
  •  3+ years of experience designing test cases and end-to-end integration testing
  • 2+ years of experience in automation testing
  • Experience (on the QA side) with two or more of the following technologies:
  • Node.JS, React, TypeScript, Pure JavaScript, SPA
  • Experience with automated testing with Selenium Web Driver
  • Excellent understanding of software development QA processes – planning, cases, bug tracking
  • Very good written and spoken English, used day-to-day in a professional environment
  • If you like our story and you want to make a real difference in the tech world, come to our office for some coffee, a chat, and to become part of our family.

Necessary soft skills:

  • Mature, self-organized and responsible person
  • Able and willing to help other team members with their tasks where needed
  • Able to work with minimal supervision

Desirable experience, skills and knowledge:

  • Experience with CI/CD tools and pipelines
  • Experience with PostgreSQL, MongoDB
  • Understanding of Progressive Web Apps and Accelerated Mobile Pages

Why to be part of our story is good for you?

  • Cool colleagues and family like organization culture
  • Career development
  • Multisport card
  • Food and Gift vouchers
  • Transport cost coverage
  • Additional health insurance
  • 21 holidays paid vacation
  • Flexible working hours
  • Fitness corner and coach in the office to train you
  • Fun company events
  • Massages in the office
  • Breakfast and snacks
  • Birthday vouchers
  • Wedding and new baby bonus
  • Language lessons in the office (Hebrew or English)
  •  Knowledge Sharing Sessions

If you are interested in joining the CoreTech Team, send us your CV in English.

Only short-listed candidates will be contacted.

Confidentiality of all applications is assured!

*In regard with GDPR 2016/679 you hereby give your consent the personal data included in the CV/resume/motivational letter to be processed for the purposes of the recruitment and hiring process in the company.

Senior Full-stack Node.JS Developer - R&D

Description

What will be your part in this awesome story?

  • Deliver readable, testable and reusable code by following best practices, using unit tests and creating and maintaining appropriate documentation
  • Participate in the analysis of the product requirements by meeting and discussing them with developers, product owners and other stakeholders
  • Participate in the planning of the delivery pipeline by estimating time required for delivery, analyzing dependencies between different software elements and improving visibility for other team members and teams
  • Take an active role in root cause analysis and troubleshooting of misbehaving applications by analyzing run-time functional and performance metrics and fixing bugs
  • Participate in the repurposing of existing software components on changes of product features or architecture by improving and refactoring

Requirements

What do you need in order to be part of CoreTech’s story:

  • 4+ years of experience developing web-based commercial software products
  • Excellent knowledge of Node.JS, npm, TypeScript and JavaScript
  • Experience with SOA / micro-services and developing performant & scalable applications
  • Understanding of web development paradigms (RESTful APIs, pub/sub, security)
  • Very good written and spoken English, used day-to-day in a professional environment

Necessary soft skills:

  • Mature, self-organized and responsible person
  • Able and willing to help other team members with their tasks where needed

Desirable experience, skills and knowledge:

  • Understanding of OOP and SOLID principles
  • Understanding of and experience with relational and non-relational databases
  • Experience with webpack, yarn, PostgreSQL, MongoDB, SPA
  • Understanding of Progressive Web Apps and Accelerated Mobile Pages
  • Experience with Git or another DVCS
  • Familiarity with Jenkins, Jira, Confluence, Bitbucket
  • Experience with some of the following: CSS-preprocessors (LESS, SASS), Docker and Kubernetes, Kafka, WebSockets, MQTT, gRPC, MessagePack, protobuf

Why to be part of our story?

  • Cool colleagues and family like organization culture
  • Career development
  • Multisport card
  • Food and Gift vouchers
  • Transport cost coverage
  • Additional health insurance
  • 21 holidays paid vacation
  • Flexible working hours
  • Fitness corner and coach in the office to train you
  • Fun company events
  • Massages in the office
  • Breakfast and snacks
  • Birthday vouchers
  • Wedding and new baby bonus
  • Language lessons in the office (Hebrew or English)
  • Knowledge Sharing Sessions

If you are interested in joining the CoreTech Team, send us your CV in English.

Only short-listed candidates will be contacted.

Confidentiality of all applications is assured!

*In regard with GDPR 2016/679 you hereby give your consent the personal data included in the CV/resume/motivational letter to be processed for the purposes of the recruitment and hiring process in the company.

Online Marketing Specialist

Description

What will be your part in this awesome story?

  • Supervise the end-to-end process of development, customization and content management of multiple informative websites with the aid of 3rd party vendors
  • Manage/supervise various third parties in the creation of graphic design, content writing and other website services
  • Manage all incoming requests for the complete portfolio of websites
  • Manage all IT related vendors such as Hosting, Domain Registries, etc.
  • Create Presentations, Promotions, Brochures or other Marketing Materials related to the promotion of the websites
  • Responsible for company’s employer branding – set, screen and survey social media standards and ensure that marketing and recruiting goals are adjusted.
  • Prioritize projects accordingly

Requirements

What do you need in order to be part of CoreTech’s story:

  • 3+ years creative and project management experience
  • Proficiency in WordPress setups including customizing templates and plugins
  • Working knowledge of website management tools
  • Experience leading creative online marketing project
  • Bachelor’s degree in Marketing or Business

Desirable

  • Develop and craft original marketing content
  • HTML/CSS, XML knowledge
  • A link to an online portfolio showcasing your work

Why to be part of our story is good for you?

  • Cool colleagues and family like organization culture
  • Career development
  • Multisport card
  • Food and Gift vouchers
  • Transport cost coverage
  • Additional health insurance
  • 21 holidays paid vacation
  • Flexible working hours
  • Fitness corner and coach in the office to train you
  • Fun company events
  • Massages in the office
  •  Breakfast and snacks
  • Birthday vouchers
  • Wedding and new baby bonus
  • Language lessons in the office (Hebrew or English)
  • Knowledge Sharing Sessions
  • If you are interested in joining the CoreTech Team, send us your CV in English.
  • Only short-listed candidates will be contacted.
  • Confidentiality of all applications is assured!

*In regard with GDPR 2016/679 you hereby give your consent the personal data included in the CV/resume/motivational letter to be processed for the purposes of the recruitment and hiring process in the company.

If you are interested in joining the CoreTech Team, send us your CV in English.

Only short-listed candidates will be contacted.

Confidentiality of all applications is assured!

.NET Developer – R&D

Description

What will be your part in this awesome story?

  • Deliver readable, testable and reusable code by following best practices, using unit tests and creating and maintaining appropriate documentation
  • Participate in the analysis of the product requirements by meeting and discussing them with developers, product owners and other stakeholders
  • Participate in the planning of the delivery pipeline by estimating time required for delivery, analyzing dependencies between different software elements and improving visibility for other team members and teams
  • Take an active role in root cause analysis and troubleshooting of misbehaving applications by analyzing run-time functional and performance metrics and fixing bugs
  • Participate in the re-purposing of existing software components on changes of product features or architecture by improving and refactoring

Requirements

What do you need in order to be part of CoreTech’s story:

  • 3+ years of experience developing commercial software products
  • 3+ years of experience developing web-based software products
  • Understanding of OOP and SOLID principles
  • Understanding of and experience with relational and non-relational databases
  • Experience with SOA / micro-services and developing performant & scalable applications
  • Experience with several of the following: .NET Core, C#, PostgreSQL, MongoDB
  • Experience with Git or another DVCS
  • Very good written and spoken English

Desirable skills and knowledge, not a must-have:

  • Familiarity with Jenkins, Jira, Confluence, Bitbucket
  • Experience with some of the following: Docker and Kubernetes, Kafka

Why be part of our story is good for you?

  • Cool colleagues and family-like organization culture
  • Career development
  • Multisport card
  • Food and Gift vouchers
  • Transport cost coverage
  • Additional health insurance
  • 21 holidays paid vacation
  • Flexible working hours
  • Fitness corner and coach in the office to train you
  • Fun company events
  • Massages in the office
  • Breakfast and snacks
  • Birthday vouchers
  • Wedding and new baby bonus
  • Language lessons in the office (Hebrew or English)
  • Knowledge Sharing Sessions

If you are interested in joining the CoreTech Team, send us your CV in English.

Only short-listed candidates will be contacted.

Confidentiality of all applications is assured!

*In regard with GDPR 2016/679 you hereby give your consent the personal data included in the CV/resume/motivational letter to be processed for the purposes of the recruitment and hiring process in the company.

Mid level QA (Maternity cover) - R&D

Description

What will be your part in this awesome story?

  • Testing and verifying web applications and systems
  • Estimate and evaluate information required for testing and gather information from various types of documentation and sources
  • Write detailed testing documentation such as test plans, test cases or test notes
  • Hands-on implementation and execution of manual testing in a client/server environment (Web, MSSQL, .NET) while providing high-quality execution reports and ensuring high-quality deliverables
  • Report and track the life cycle of discovered bugs
  • Provide technical support to the company products and assist customers and developers to identify and debug various problems
  • Responsible for meeting deadlines for the execution of their duties

What do you need in order to be part of CoreTech’s story:

  • 2+ years of experience as a QA Engineer
  • At least 1+ years of experience testing commercial web-based software products
  • At least 1+ years of experience designing test cases and end-to-end integration testing
  • Willingness to learn automated testing with Selenium Web Driver
  • Excellent understanding of software development QA processes – planning, cases, bug tracking
  • Very good written and spoken English, used day-to-day in a professional environment

Why to be part of our story is good for you?

  • Cool colleagues and family like organization culture
  • Career development
  • Multisport card
  • Food and Gift vouchers
  • Transport cost coverage
  • Additional health insurance
  • 21 holidays paid vacation
  • Flexible working hours
  • Fitness corner and coach in the office to train you
  • Fun company events
  • Massages in the office
  • Breakfast and snacks
  • Birthday vouchers
  • Wedding and new baby bonus
  • Language lessons in the office (Hebrew or English)
  • Knowledge Sharing Sessions

If you are interested in joining the CoreTech Team, send us your CV in English.

Only short-listed candidates will be contacted.

Confidentiality of all applications is assured!

*In regard with GDPR 2016/679 you hereby give your consent the personal data included in the CV/resume/motivational letter to be processed for the purposes of the recruitment and hiring process in the company.

Send Us Your CV
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Get Connected.

We welcome you to contact us for more information
about any of our products or services.

SOFIA OFFICE

89B Vitosha Blvd., Millennium Center, 14th floor
Sofia, Bulgaria,
phone: +359 877 317 666
e-mail: [email protected]

TAIPEI OFFICE

The CORETECH office in Taipei. Taiwan is the natural extension of our powerhouse in Sofia. Where we have team members developing our innovative software solutions.

Contact