Volia Software

US Company is searching for a Senior Full-Stack Engineer (AI Platform) to join an AI-first product company building an advanced communications platform powered by Large Language Models (LLMs). This is an exciting opportunity to work across the full technology stack, designing scalable backend services, modern user interfaces, cloud infrastructure, and AI-powered features in close collaboration with a US-based engineering team. Full-time, official contract, remote work, and flexible schedule.

Brief project description:
The product is an AI-driven communications platform that enables businesses to automate and enhance customer interactions through voice, messaging, and intelligent workflows powered by modern LLM technologies.

Responsibilities:

• Design, develop, and maintain end-to-end product features across frontend and backend.
• Build scalable backend services using Python and Node.js.
• Develop responsive and intuitive user interfaces using modern frontend technologies.
• Design and optimize PostgreSQL schemas, queries, and database migrations.
• Build, deploy, and maintain cloud infrastructure on AWS.
• Integrate LLM capabilities into production features using prompt engineering best practices.
• Develop and maintain automated unit, integration, and end-to-end tests.
• Participate in architecture discussions, code reviews, and sprint planning.
• Collaborate closely with Product, Design, and US-based Engineering leadership.
• Troubleshoot production issues and participate in on-call rotations when necessary.
• Continuously improve software quality, performance, and reliability.

Required skills (must have):

• 5+ years of professional software engineering experience, including at least 3 years as a Full-Stack Engineer.
• Strong backend development experience with Python and Node.js.
• Solid experience designing REST APIs and scalable backend architectures.
• Production experience with PostgreSQL including schema design, indexing, query optimization, and migrations.
• Hands-on experience deploying and operating applications on AWS (EC2, Lambda, RDS, S3, IAM, CloudWatch or similar services).
• Practical experience integrating LLMs into production applications through prompt engineering.
• Experience building modern, responsive UI using contemporary frontend frameworks.
• Strong knowledge of automated testing (pytest, Jest, Playwright, Cypress or similar).
• Excellent spoken and written English.
• Ability to work with several hours of overlap with US business hours.

Would be considered as a plus:

• Experience with Twilio (Programmable Voice, Messaging or Verify).
• Experience building Voice, SMS, RCS or Apple Messages for Business solutions.
• Experience working in Agile/Scrum environments using Jira.
• Experience building AI-first SaaS products.
• Experience designing distributed cloud-native systems.

Work conditions:

• 100% remote work.
• Full-time (40 hours per week).
• Official contract.
• Flexible schedule with required overlap with US business hours.
• Participation in an on-call rotation for production incidents.

Interviewing / Hiring process:
Step 1 - preliminary interview (main questions) - 45 mins
Step 2 - internal technical interview - 60 mins
Step 3 - technical interview with Team Leader - 60 mins

US Company is searching for a Senior Backend and DB Engineer to join an innovative product team developing an AI-powered SaaS platform. This is an exciting opportunity to build scalable backend services, cloud infrastructure, and data-driven solutions while working with modern AI technologies in a distributed international team. Full-time, official contract, remote work, and flexible schedule.

Brief project description:
The product is SaaS, which enables businesses to automate and enhance customer communications through AI-powered workflows and modern communication technologies.

Responsibilities:

• Design, develop, and maintain scalable backend services using Python and Node.js.
• Design, optimize, and maintain PostgreSQL databases, schemas, queries, and migrations.
• Build and maintain REST APIs and backend integrations.
• Integrate LLM APIs and AI-powered capabilities into production applications.
• Build, deploy, and maintain applications and cloud infrastructure on AWS.
• Optimize application performance, scalability, and reliability.
• Develop and maintain automated unit and integration tests.
• Participate in architecture discussions, code reviews, sprint planning, and technical decision-making.
• Troubleshoot production issues and continuously improve backend quality and performance.
• Collaborate closely with engineers across the team, contributing wherever needed to support successful product delivery.

Required skills (must have):

• 7+ years of professional software engineering experience, including significant experience in backend development.
• Strong backend development experience with Python and/or Node.js.
• Strong experience with PostgreSQL, including schema design, query optimization, indexing, migrations, and performance tuning.
• Experience designing and developing REST APIs.
• Experience building and deploying applications on AWS.
• Experience working with LLM APIs or AI-powered applications.
• Experience with automated testing frameworks and modern development practices.
• Excellent spoken and written English.
• Ability to work with several hours of overlap with US business hours.

Would be considered as a plus:

• Basic experience with React, Vue.js, or similar frontend frameworks.
• Experience with Twilio or other communications platforms.
• Experience working on enterprise SaaS products.
• Experience working with distributed international teams.
• Experience with Agile/Scrum development methodologies.

Work conditions:

• 100% remote work.
• Full-time (40 hours per week).
• Official contract: salary, sick-leave days, holidays, vacations.
• Flexible schedule with overlap with US business hours.

Interviewing / Hiring process:
Step 1 - preliminary interview (main questions) - 45 mins
Step 2 - internal technical interview - 60 mins
Step 3 - technical interview with Team Leader - 60 mins

US Company is searching for a Senior Full-Stack Engineer to join an innovative product team developing an AI-powered SaaS platform. This is an exciting opportunity to work with modern cloud technologies, Large Language Models (LLMs), and scalable web applications in a distributed international team. Full-time, official contract, remote work, and flexible schedule.

Brief project description:
The product is SaaS, which enables businesses to automate and enhance customer communications through AI-powered workflows and modern communication technologies.

Responsibilities:

• Design, develop, and maintain end-to-end product features across frontend and backend.
• Build scalable backend services using Python and Node.js.
• Develop responsive, intuitive, and accessible user interfaces using React, Vue.js, or similar modern frontend frameworks.
• Collaborate with Product and Design to deliver high-quality user experiences.
• Integrate LLM APIs and AI-powered capabilities into production applications.
• Build, deploy, and maintain applications and cloud infrastructure on AWS.
• Develop and maintain automated unit, integration, and end-to-end tests.
• Participate in architecture discussions, code reviews, sprint planning, and technical decision-making.
• Troubleshoot production issues and continuously improve software quality, performance, and reliability.
• Collaborate closely with engineers across the team, contributing wherever needed to support successful product delivery.

Required skills (must have):

• 7+ years of professional software engineering experience, including significant experience as a Full-Stack Engineer.
• Strong backend development experience with Python and/or Node.js.
• Strong experience with React, Vue.js, or similar modern frontend frameworks.
• Experience designing and developing REST APIs.
• Experience building and deploying applications on AWS.
• Experience working with LLM APIs or AI-powered applications.
• Experience with automated testing frameworks and modern development practices.
• Excellent spoken and written English.
• Ability to work with several hours of overlap with US business hours.

Would be considered as a plus:

• Experience with PostgreSQL.
• Experience with Twilio or other communications platforms.
• Experience working on enterprise SaaS products.
• Experience working with distributed international teams.
• Experience with Agile/Scrum development methodologies.

Work conditions:

• 100% remote work.
• Full-time (40 hours per week).
• Official contract: salary, sick-leave days, holidays, vacations.
• Flexible schedule with overlap with US business hours.

Interviewing / Hiring process:
Step 1 - preliminary interview (main questions) - 45 mins
Step 2 - internal technical interview - 60 mins
Step 3 - technical interview with Team Leader - 60 mins

Location: Remote
Work Hours: 11 AM – 7 PM CET (Barcelona, Berlin, Warsaw)
Type: Full-Time, Long-Term Engagement

About the Role
We’re seeking a software engineer who lead a team of 3 developers and own the technical side of a single Laravel-based web application. You may expect multiple challenges in this project, starting from the existing code base and architecture audit, through the refactoring and enhancements and finishing with aligning team members from different backgrounds. 

The project is related to medical lab testing and includes one custom PHP/Laravel web-application and a number of integrations with the external systems (mostly API-based, both inbound and outbound directions).

While the core responsibility is the technical and solution architecture, the role also includes taking part in urgent bug fixing, building AI development and deployment workflows and coaching. Together with a Ukrainian team of one Project Manager, two developers and one QA, you will also work with two authors of the application and work directly with the US product owners, their management team and support representatives.

Key Responsibilities

• Take ownership over the solution and technical architecture of the application
• Collaborate with the PM and dev team to work on development tasks during low-volume periods.
• Help the team to triage, investigate, and resolve support tickets and application issues as they arise.
• Work with logs, databases, and code to diagnose root causes.
• Participate in stand-ups or team syncs, as needed.
• Maintain high responsiveness during working hours, with a strong sense of ownership.

Technical Requirements
Required :

• 7+ years of experience in software development (reaching the senior-level, TL or architect level)
• Proficiency in PHP/Laravel and frontend-frameworks like Vue or react
• Excellent spoken and written English
• Comfortable working independently during 11 AM – 7 PM CET/Europe hours
• Readiness for occasional availability after hours (paid separately)
• Comfortable working with relational databases (MySQL or PostgreSQL)
• Familiarity with CI/CD pipelines and basic DevOps tools
• Ability to read logs and debug issues in production environments.
   

Nice to Have:

• Experience with AI-tools
• Experience with HIPAA-compliant requirements
• Experience with Wordpress

• Experience with other programming languages

   

Soft Skills

• Self-motivated and able to work independently.
• Strong communication skills with both technical and non-technical team members and customers.
• Eager to learn and take on new challenges.

The Hiring Process:

• 20 minutes intro with Volia PM
• 40 minutes technical interview with Volia Senior Developer
• 30 minutes interview with the customer representatives