5Blue Software

Hi there,

We are currently seeking for a Senior Java Engineer to join our growing teams.
 

About the project:

Our clients are enabling a world where everyone and everything can be intelligently connected. As the world’s leading wireless technology innovator, we continue to push the boundaries of what’s possible across devices and networks to enable next-generation experiences and drive digital transformation.

We deliver breakthroughs in 5G, Wi-Fi and AI. But that’s just the beginning. We design platforms, chipsets, software, tools, and services that help OEMs and developers bring those technologies into products and create experiences that change how we live and work.

And we do this at scale, building technologically advanced, in-demand end products that support everything from low- to high-complexity devices, helping us serve virtually every industry at the connected intelligent edge.
 

Requirements:

• 7+ years of experience with Java.
• Upper-intermediate and higher English level.
• Solid experience with the Spring framework
• Experience in SQL, NoSQL, and Big Data tools.
• Experience with Git and Maven.
• Deep understanding and strong Computer Science fundamentals: object-oriented design, data structures, application programming, and multithreading programming.
• Strong API Development experience with as many years of experience as possible.
• Team player with strong communication, interpersonal, and presentation skills.
• Stable long-term involvement in projects for 3+ years.
   

Responsibilities:

• Design and develop infrastructure and features for thousands of websites and over 1.4B users across the open web.
• Be responsible for large scale systems that generate billions of dollars, over 500,000 requests / second and 100TB of new data every day.
• Have end to end ownership: Innovate, design, build, ship, measure and maintain our backend services.
• Collaborate with the brightest software engineers.
• Leverage full CI/CD pipelines, A/B testing, and real Big Data environments to deliver high-impact solutions and observe their results in near real-time.
   

What we offer:

• Flexible Work Environment: Opportunity to work remotely.
• Premium Medical Insurance: Comprehensive health insurance to ensure your well-being.
• 1:1 English Classes: Individual English language training to enhance your communication skills.
• Great Team: Work with a supportive, collaborative, and dynamic international team.
• Equipment Provided: All necessary equipment supplied for efficient job performance.
• Annual Vacation: 18 days of paid vacation and 7 days of paid sick leave.
• Commitment to Hiring Ukrainians: We are dedicated to hiring Ukrainian talent and promoting Ukraine as a fantastic place to work.
• Flexible payment system, which allows you to withdraw funds in one click and has about twenty withdrawal options.
   

The recruitment process includes 4 interviews:

1. Initial meeting with HR — 30 min;
2. Introduction + Technical interview (including coding task) — 1.5 hours;
3. Architectural interview — 1 hour;
4. Final managerial interview — 1 hour.
    

If you have any questions do not hesitate to ask us :)

Hi there!

We are looking for a Senior Full-Stack Developer (PHP/Vue.js) to join our team.

Location: only Europe.
 

About the project:

Our client provides digital infrastructure for specialty pharmaceutical brands aiming to reduce prescription abandonment. They activate patients as soon as the prescription is captured in the EHR, supporting processes such as consent, affordability, and Hub enrollment.

They’ve developed a mobile platform that assists patients in navigating treatments for life-changing, chronic conditions. Their customers are pharmaceutical companies looking to minimise patient drop-off from often complex and costly therapies. The goal is to help patients successfully start and stay on their prescribed treatments, making their journey easier in the often outdated and overly complicated world of specialty medications.

The team holds a vital role: building and maintaining software that supports and enhances the patient journey across both web and mobile platforms. This work requires a combination of strong technical skills, a user-focused mindset, and an understanding of healthcare workflows.
 

Requirements:

• English: Upper-Intermediate.
• Cross-platform knowledge (web, mobile, back-end).
• Full stack technology understanding to offer solutions, identify risks and understand effort estimations
• Good understanding of Laravel web framework and PHP
• Strong knowledge of Vue.js.
• Good understanding of API service management (REST), OOP (Object-oriented Programming), and MVC.
• Familiarity with front-end languages such as HTML, JavaScript and CSS.
• Familiarity with MySQL and NoSQL(MongoDB) database architecture.
• Proven familiarity with unit testing technologies such as PHPUnit, and TDD.
• Ability to work with docker(user).
• Understanding of code management tool Git.
• Familiarity with Agile Methodology will be a plus.
• Problem-solving skills and critical mindset.
   

Responsibilities:

• Create code designs and mobile web architecture.
• Analyze requirements, produce specifications and determine operational feasibility.
• Write well-designed, efficient and testable code.
• Integrate software components into a fully functional software system.
• Execute full software development life cycle.
• Strive to deliver software that provides easy integration with external teams/customers.
• Maintain a reliable production environment.
• Design and implement software with high-security standards.
• Design and implement software considering user privacy.
• Constantly improve software by introducing new technologies and methodologies.
   

What we offer:

• Flexible Work Environment: Opportunity to work remotely.
• Premium Medical Insurance: Comprehensive health insurance to ensure your well-being.
• 1:1 English Classes: Individual English language training to enhance your communication skills.
• Great Team: Work with a supportive, collaborative, and dynamic international team.
• Equipment Provided: All necessary equipment supplied for efficient job performance.
• Annual Vacation: 18 days of paid vacation and 7 days of paid sick leave.
• Commitment to Hiring Ukrainians: We are dedicated to hiring Ukrainian talent and promoting Ukraine as a fantastic place to work.
• Flexible payment system, which allows you to withdraw funds in one click and has about twenty withdrawal options.

The recruitment process includes 4 interviews:

1. Initial meeting with HR — 30 min;
2. Introduction + Technical interview — 2 hours;
3. Final managerial interview — 1 hour.
    

Does this position sound like a perfect match? We’re eager to hear from you!

Hi there,

We are currently seeking for a Senior Java Engineer to join our growing teams.
 

About the project:

Our clients are enabling a world where everyone and everything can be intelligently connected. As the world’s leading wireless technology innovator, we continue to push the boundaries of what’s possible across devices and networks to enable next-generation experiences and drive digital transformation.

We deliver breakthroughs in 5G, Wi-Fi and AI. But that’s just the beginning. We design platforms, chipsets, software, tools, and services that help OEMs and developers bring those technologies into products and create experiences that change how we live and work.

And we do this at scale, building technologically advanced, in-demand end products that support everything from low- to high-complexity devices, helping us serve virtually every industry at the connected intelligent edge.
 

Requirements:

• 7+ years of experience with Java.
• Upper-intermediate and higher English level.
• Solid experience with the Spring framework
• Experience in SQL, NoSQL, and Big Data tools.
• Experience with Git and Maven.
• Deep understanding and strong Computer Science fundamentals: object-oriented design, data structures, application programming, and multithreading programming.
• Strong API Development experience with as many years of experience as possible.
• Team player with strong communication, interpersonal, and presentation skills.
• Stable long-term involvement in projects for 3+ years.
   

Responsibilities:

• Design and develop infrastructure and features for thousands of websites and over 1.4B users across the open web.
• Be responsible for large scale systems that generate billions of dollars, over 500,000 requests / second and 100TB of new data every day.
• Have end to end ownership: Innovate, design, build, ship, measure and maintain our backend services.
• Collaborate with the brightest software engineers.
• Leverage full CI/CD pipelines, A/B testing, and real Big Data environments to deliver high-impact solutions and observe their results in near real-time.
   

What we offer:

• Flexible Work Environment: Opportunity to work remotely.
• Premium Medical Insurance: Comprehensive health insurance to ensure your well-being.
• 1:1 English Classes: Individual English language training to enhance your communication skills.
• Great Team: Work with a supportive, collaborative, and dynamic international team.
• Equipment Provided: All necessary equipment supplied for efficient job performance.
• Annual Vacation: 18 days of paid vacation and 7 days of paid sick leave.
• Commitment to Hiring Ukrainians: We are dedicated to hiring Ukrainian talent and promoting Ukraine as a fantastic place to work.
• Flexible payment system, which allows you to withdraw funds in one click and has about twenty withdrawal options.
   

The recruitment process includes 4 interviews.

1. Initial meeting with HR — 30 min
2. Introduction + Technical interview (including coding task) — 1.5 hours
3. Architectural interview — 1 hour
4. Final managerial interview — 1 hour

If you have any questions do not hesitate to ask us :)

Hi there!
 

We are looking for a Senior Full-Stack Developer (PHP/Vue.js) to join our team.
 

Location: Europe only!
 

About the project:

Our client provides digital infrastructure for specialty pharmaceutical brands aiming to reduce prescription abandonment. They activate patients as soon as the prescription is captured in the EHR, supporting processes such as consent, affordability, and Hub enrollment.

They’ve developed a mobile platform that assists patients in navigating treatments for life-changing, chronic conditions. Their customers are pharmaceutical companies looking to minimise patient drop-off from often complex and costly therapies. The goal is to help patients successfully start and stay on their prescribed treatments, making their journey easier in the often outdated and overly complicated world of specialty medications.

The team holds a vital role: building and maintaining software that supports and enhances the patient journey across both web and mobile platforms. This work requires a combination of strong technical skills, a user-focused mindset, and an understanding of healthcare workflows.
 

Requirements:

• English: Upper intermediate
• Cross-platform knowledge (web, mobile, back-end).
• Full stack technology understanding to offer solutions, identify risks and understand effort estimations
• Good understanding of Laravel web framework and PHP
• Strong knowledge of Vue.js.
• Good understanding of API service management (REST), OOP (Object-oriented Programming), and MVC.
• Familiarity with front-end languages such as HTML, JavaScript and CSS.
• Familiarity with MySQL and NoSQL(MongoDB) database architecture.
• Proven familiarity with unit testing technologies such as PHPUnit, and TDD.
• Ability to work with docker(user).
• Understanding of code management tool Git.
• Familiarity with Agile Methodology will be a plus.
• Problem-solving skills and critical mindset.
   

Responsibilities:

• Create code designs and mobile web architecture.
• Analyze requirements, produce specifications and determine operational feasibility.
• Write well-designed, efficient and testable code.
• Integrate software components into a fully functional software system.
• Execute full software development life cycle.
• Strive to deliver software that provides easy integration with external teams/customers.
• Maintain a reliable production environment.
• Design and implement software with high-security standards.
• Design and implement software considering user privacy.
• Constantly improve software by introducing new technologies and methodologies.
   

What we offer:

• Flexible Work Environment: Opportunity to work remotely.
• Premium Medical Insurance: Comprehensive health insurance to ensure your well-being.
• 1:1 English Classes: Individual English language training to enhance your communication skills.
• Great Team: Work with a supportive, collaborative, and dynamic international team.
• Equipment Provided: All necessary equipment supplied for efficient job performance.
• Annual Vacation: 18 days of paid vacation and 7 days of paid sick leave.
• Commitment to Hiring Ukrainians: We are dedicated to hiring Ukrainian talent and promoting Ukraine as a fantastic place to work.
• Flexible payment system, which allows you to withdraw funds in one click and has about twenty withdrawal options.
   

The recruitment process includes 4 interviews.

1. Initial meeting with HR — 30 min
2. Introduction + Technical interview — 2 hours
3. Final managerial interview — 1 hour
    

Does this position sound like a perfect match? We’re eager to hear from you!

Hi there!

We are looking for a Senior Full-Stack Developer (PHP/Vue.js) to join our team.

Location: Europe only.

About the project:

Our client provides digital infrastructure for specialty pharmaceutical brands aiming to reduce prescription abandonment. They activate patients as soon as the prescription is captured in the EHR, supporting processes such as consent, affordability, and Hub enrollment.

They’ve developed a mobile platform that assists patients in navigating treatments for life-changing, chronic conditions. Their customers are pharmaceutical companies looking to minimise patient drop-off from often complex and costly therapies. The goal is to help patients successfully start and stay on their prescribed treatments, making their journey easier in the often outdated and overly complicated world of specialty medications.

The team holds a vital role: building and maintaining software that supports and enhances the patient journey across both web and mobile platforms. This work requires a combination of strong technical skills, a user-focused mindset, and an understanding of healthcare workflows.

Requirements:

• English: Upper intermediate
• Cross-platform knowledge (web, mobile, back-end).
• Full stack technology understanding to offer solutions, identify risks and understand effort estimations
• Good understanding of Laravel web framework and PHP
• Strong knowledge of Vue.js.
• Good understanding of API service management (REST), OOP (Object-oriented Programming), and MVC.
• Familiarity with front-end languages such as HTML, JavaScript and CSS.
• Familiarity with MySQL and NoSQL(MongoDB) database architecture.
• Proven familiarity with unit testing technologies such as PHPUnit, and TDD.
• Ability to work with docker(user).
• Understanding of code management tool Git.
• Familiarity with Agile Methodology will be a plus.
• Problem-solving skills and critical mindset.

Responsibilities:

• Create code designs and mobile web architecture.
• Analyse requirements, produce specifications and determine operational feasibility.
• Write well-designed, efficient and testable code.
• Integrate software components into a fully functional software system.
• Execute full software development life cycle.
• Strive to deliver software that provides easy integration with external teams/customers.
• Maintain a reliable production environment.
• Design and implement software with high-security standards.
• Design and implement software considering user privacy.
• Constantly improve software by introducing new technologies and methodologies.

What we offer:

• Flexible Work Environment: Opportunity to work remotely.
• Premium Medical Insurance: Comprehensive health insurance to ensure your well-being.
• 1:1 English Classes: Individual English language training to enhance your communication skills.
• Great Team: Work with a supportive, collaborative, and dynamic international team.
• Equipment Provided: All necessary equipment supplied for efficient job performance.
• Annual Vacation: 18 days of paid vacation and 7 days of paid sick leave.
• Commitment to Hiring Ukrainians: We are dedicated to hiring Ukrainian talent and promoting Ukraine as a fantastic place to work.
• Flexible payment system, which allows you to withdraw funds in one click and has about twenty withdrawal options.

The recruitment process includes 4 interviews.

1. Initial meeting with HR - 30 min
2. Introduction + Technical interview - 2 hours
3. Final managerial interview - 1 hour

If you have any questions do not hesitate to ask us :)

Hi there,

We are currently seeking for a Senior Java Engineer to join our growing teams.

About the project:

Our clients are enabling a world where everyone and everything can be intelligently connected. As the world’s leading wireless technology innovator, we continue to push the boundaries of what’s possible across devices and networks to enable next-generation experiences and drive digital transformation.

We deliver breakthroughs in 5G, Wi-Fi and AI. But that’s just the beginning. We design platforms, chipsets, software, tools, and services that help OEMs and developers bring those technologies into products and create experiences that change how we live and work.

And we do this at scale, building technologically advanced, in-demand end products that support everything from low- to high-complexity devices, helping us serve virtually every industry at the connected intelligent edge.

Requirements:

• 7+ years of experience with Java.
• Upper-intermediate and higher English level.
• Solid experience with the Spring framework
• Experience in SQL, NoSQL, and Big Data tools.
• Experience with Git and Maven.
• Deep understanding and strong Computer Science fundamentals: object-oriented design, data structures, application programming, and multithreading programming.
• Strong API Development experience with as many years of experience as possible.
• Team player with strong communication, interpersonal, and presentation skills.
• Stable long-term involvement in projects for 3+ years.

Responsibilities:

• Design and develop infrastructure and features for thousands of websites and over 1.4B users across the open web.
• Be responsible for large scale systems that generate billions of dollars, over 500,000 requests / second and 100TB of new data every day.
• Have end to end ownership: Innovate, design, build, ship, measure and maintain our backend services.
• Collaborate with the brightest software engineers.
• Leverage full CI/CD pipelines, A/B testing, and real Big Data environments to deliver high-impact solutions and observe their results in near real-time.

What we offer:

• Flexible Work Environment: Opportunity to work remotely.
• Premium Medical Insurance: Comprehensive health insurance to ensure your well-being.
• 1:1 English Classes: Individual English language training to enhance your communication skills.
• Great Team: Work with a supportive, collaborative, and dynamic international team.
• Equipment Provided: All necessary equipment supplied for efficient job performance.
• Annual Vacation: 18 days of paid vacation and 7 days of paid sick leave.
• Commitment to Hiring Ukrainians: We are dedicated to hiring Ukrainian talent and promoting Ukraine as a fantastic place to work.
• Flexible payment system, which allows you to withdraw funds in one click and has about twenty withdrawal options.

The recruitment process includes 4 interviews.

1. Initial meeting with HR - 30 min
2. Introduction + Technical interview (including coding task) - 1.5 hours
3. Architectural interview - 1 hour
4. Final managerial interview - 1 hour

If you have any questions do not hesitate to ask us :)

Hi there,

We are looking for a Senior DevOps Engineer to help design, automate, and manage large-scale AI infrastructure.

You will work closely with network engineers, IT teams, and AI/ML specialists to build secure, resilient, and scalable solutions across GPU, CPU, storage, and networking layers.

About project:
Our client is shaping the future of Artificial Intelligence by providing high-performance, scalable infrastructure. Their mission is to drive innovation across industries by delivering reliable platforms for training and deploying AI models, including LLMs, computer vision, and generative AI.

They design and operate AI-optimized data centers with advanced GPU infrastructure, secure networking, and enterprise-level reliability—helping their customers seamlessly transition from AI concepts to full-scale production.

Qualifications:

• 6/7+ years of experience in DevOps, Infrastructure, or Site Reliability Engineering.
• Expertise in Kubernetes, Docker, Terraform, and infrastructure-as-code (IaC) methodologies.
• Strong scripting and automation skills in Python, Bash, or Go.
• Deep knowledge of high-performance networking, including InfiniBand, RoCE, and out-of-band (OOB) management.
• Hands-on experience with firewall security (FortiGate preferred), routing policies, and network segmentation.

• Experience in distributed computing, high-performance computing (HPC), or AI-driven environments is a strong plus.

   

Key Responsibilities:

• Infrastructure Automation: Design and automate infrastructure provisioning, configuration, and management using Terraform, Ansible, or similar tools.
• Containerized Environments: Develop and maintain high-availability AI workloads using Docker and Kubernetes.
• GPU/CPU Management: Automate provisioning, backup, and recovery processes for GPU clusters and CPU infrastructure.
• Security & Networking: Implement and manage network segmentation, IP access controls, and secure API authentication workflows.
• Firewall & Routing: Collaborate with the Networking team to integrate automated firewall configurations, routing logic, and multi-ISP resilience strategies.
• Monitoring & Optimization: Monitor system performance, set up alerts for anomalies in GPU, CPU, and storage usage, and optimize resource utilization.
• API & Automation: Write and manage internal API calls and integrations to automate access, provisioning, and scaling operations.
• Remote Access & OOB Management: Support the setup of out-of-band management systems and remote access controls for data center infrastructure.
• Disaster Recovery: Contribute to disaster recovery planning, implement automated rollback testing, and ensure failover strategies.
• System Monitoring Tools: Utilize tools like IPMI and Redfish to automate system monitoring and data collection.

• Documentation & Best Practices: Maintain clear, comprehensive documentation for workflows, procedures, and infrastructure design.

   

What we offer:

• Flexible Work Environment: Opportunity to work remotely or in our safe office in Kyiv.
• Premium Medical Insurance: Comprehensive health insurance to ensure your well-being.
• 1:1 English Classes: Individual English language training to enhance your communication skills.
• Great Team: Work with a supportive, collaborative, and dynamic international team.
• Equipment Provided: All necessary equipment supplied for efficient job performance.
• Annual Vacation: 18 days of paid vacation and 7 days of paid sick leave.
• Commitment to Hiring Ukrainians: We are dedicated to hiring Ukrainian talent and promoting Ukraine as a fantastic place to work.
• Flexible payment system, which allows you to withdraw funds in one click and has about twenty withdrawal options.

Hi there,

We are looking for a Senior DevOps Engineer to help design, automate, and manage large-scale AI infrastructure.

You will work closely with network engineers, IT teams, and AI/ML specialists to build secure, resilient, and scalable solutions across GPU, CPU, storage, and networking layers.

About the Project
Our client is shaping the future of Artificial Intelligence by providing high-performance, scalable infrastructure. Their mission is to drive innovation across industries by delivering reliable platforms for training and deploying AI models, including LLMs, computer vision, and generative AI.

They design and operate AI-optimized data centers with advanced GPU infrastructure, secure networking, and enterprise-level reliability—helping their customers seamlessly transition from AI concepts to full-scale production.

Qualifications

• 6/7+ years of experience in DevOps, Infrastructure, or Site Reliability Engineering.
• Expertise in Kubernetes, Docker, Terraform, and infrastructure-as-code (IaC) methodologies.
• Strong scripting and automation skills in Python, Bash, or Go.
• Deep knowledge of high-performance networking, including InfiniBand, RoCE, and out-of-band (OOB) management.
• Hands-on experience with firewall security (FortiGate preferred), routing policies, and network segmentation.

• Experience in distributed computing, high-performance computing (HPC), or AI-driven environments is a strong plus.

   

Key Responsibilities

• Infrastructure Automation: Design and automate infrastructure provisioning, configuration, and management using Terraform, Ansible, or similar tools.
• Containerized Environments: Develop and maintain high-availability AI workloads using Docker and Kubernetes.
• GPU/CPU Management: Automate provisioning, backup, and recovery processes for GPU clusters and CPU infrastructure.
• Security & Networking: Implement and manage network segmentation, IP access controls, and secure API authentication workflows.
• Firewall & Routing: Collaborate with the Networking team to integrate automated firewall configurations, routing logic, and multi-ISP resilience strategies.
• Monitoring & Optimization: Monitor system performance, set up alerts for anomalies in GPU, CPU, and storage usage, and optimize resource utilization.
• API & Automation: Write and manage internal API calls and integrations to automate access, provisioning, and scaling operations.
• Remote Access & OOB Management: Support the setup of out-of-band management systems and remote access controls for data center infrastructure.
• Disaster Recovery: Contribute to disaster recovery planning, implement automated rollback testing, and ensure failover strategies.
• System Monitoring Tools: Utilize tools like IPMI and Redfish to automate system monitoring and data collection.

• Documentation & Best Practices: Maintain clear, comprehensive documentation for workflows, procedures, and infrastructure design.

   

What we offer:

• Flexible Work Environment: Opportunity to work remotely or in our safe office in Kyiv.
• Premium Medical Insurance: Comprehensive health insurance to ensure your well-being.
• 1:1 English Classes: Individual English language training to enhance your communication skills.
• Great Team: Work with a supportive, collaborative, and dynamic international team.
• Equipment Provided: All necessary equipment supplied for efficient job performance.
• Annual Vacation: 18 days of paid vacation and 7 days of paid sick leave.
• Commitment to Hiring Ukrainians: We are dedicated to hiring Ukrainian talent and promoting Ukraine as a fantastic place to work.

• Flexible payment system, which allows you to withdraw funds in one click and has about twenty withdrawal options.

   

Does this position sound like a perfect match? We’re eager to hear from you!