Axetriura, LLC

C#/.NET Engineer – ERP & QuickBooks Integration

Location: Ukraine — 100% Remote
Employment Type: Full-Time
Salary: $2,000–$2,500 USD/month
Required Working Hours: U.S. Eastern Time (ET)

About the Role

We are looking for an experienced C#/.NET Engineer based in Ukraine to join our development team and work primarily on ERP development and QuickBooks integrations.

This is a remote position, but candidates must be available to work U.S. Eastern Time business hours. This requirement is important because the engineer will collaborate directly with our U.S.-based engineering team, customers, and business stakeholders.

You will build and maintain backend services, APIs, synchronization processes, and integrations connecting our ERP platform with QuickBooks and other business systems.

Responsibilities

• Develop and maintain backend applications using C# and .NET / .NET Core.
• Build and maintain ERP integrations with QuickBooks.
• Develop integrations with QuickBooks Online (QBO) APIs.
• Work with customers, vendors, invoices, payments, bills, expenses, purchase orders, accounts, payroll-related data, and inventory.
• Design reliable two-way data synchronization between ERP and QuickBooks.
• Build REST APIs, webhooks, background services, and scheduled synchronization jobs.
• Implement OAuth 2.0 and other authentication mechanisms.
• Handle data mapping and transformation between ERP and QuickBooks.
• Troubleshoot synchronization failures, duplicate records, API errors, and data inconsistencies.
• Implement retry mechanisms, logging, monitoring, and error handling.
• Work extensively with SQL Server and relational data.
• Investigate and resolve production integration issues.
• Participate in code reviews and architecture discussions.
• Collaborate directly with U.S.-based developers, product managers, customers, and stakeholders.

• Participate in meetings and technical discussions during U.S. Eastern Time working hours.

   

Required Technical Skills

• 3+ years of professional C#/.NET development experience
• Strong C# programming skills
• .NET 6/7/8 or later
• ASP.NET Core / Web API
• REST API development and third-party integrations
• SQL Server
• Entity Framework / Entity Framework Core
• OAuth 2.0
• JSON and API data transformation
• Background workers and scheduled jobs
• Asynchronous programming (async / await)
• Git
• Strong debugging and troubleshooting skills

ERP & QuickBooks Experience

Experience in one or more of the following is strongly preferred:

• QuickBooks Online API
• QuickBooks Desktop integrations
• QuickBooks Web Connector
• ERP development
• Accounting system integrations
• Customer/vendor synchronization
• Invoice and payment synchronization
• Payroll integrations
• Inventory and purchasing workflows
• CRM-to-accounting integrations
• Financial data synchronization

Previous QuickBooks integration experience is highly preferred.

Nice to Have

• Microsoft Azure
• Azure Functions
• Azure App Service
• Azure SQL
• Azure Service Bus
• Docker
• CI/CD
• GitHub Actions or Azure DevOps
• Microservices
• Message queues
• Redis
• Vue.js, Angular, or React
• Multi-tenant SaaS experience
• Experience modernizing legacy .NET applications

Working Hours — Important

This position requires working according to the U.S. Eastern Time (ET) schedule.

Candidates must be comfortable working U.S. business hours from Ukraine and should be consistently available during the agreed Eastern Time schedule for:

• Daily development work
• Team meetings
• Customer meetings
• Technical discussions
• Production support
• Collaboration with U.S.-based team members

Please apply only if you are comfortable working U.S. Eastern Time hours on a long-term basis.

What We're Looking For

We need an engineer who can take ownership of integrations from beginning to end: understand the business workflow, review third-party API documentation, design the solution, implement it, test it, deploy it, and troubleshoot production issues.

Because this role involves accounting and financial data, accuracy, reliability, data integrity, logging, and robust error handling are critical.

Strong English communication skills are also important because you will regularly communicate with U.S.-based team members and potentially customers.

Software Engineer – AI, Data & Full Stack

Employment Type: Full-Time, Remote
Working Hours: U.S. Time Zone
Salary: $2,000–$2,500 USD per month

About the Role

We are looking for a Software Engineer – AI, Data & Full Stack to join our engineering team and build production-ready AI applications, backend services, data pipelines, and modern web applications.

The ideal candidate has strong experience with Python, FastAPI, AI/LLMs, RAG, MCP, Vue.js, and Angular, along with practical knowledge of cloud infrastructure and CI/CD.

The position is 100% remote, but candidates must be available to work during U.S. business hours.

Key Responsibilities

• Develop backend applications and APIs using Python and FastAPI.
• Build responsive frontend applications using Vue.js and Angular.
• Integrate frontend applications with REST APIs and AI-powered backend services.
• Build AI applications using LLMs, Generative AI, RAG, and AI agents.
• Develop and integrate Model Context Protocol (MCP) servers and tools.
• Design and optimize prompts using modern prompt engineering techniques.
• Implement embeddings, semantic search, and vector database solutions.
• Build data processing, ETL, and machine-learning pipelines.
• Integrate external APIs and third-party platforms.
• Design scalable REST APIs and microservices.
• Containerize applications using Docker.
• Build and maintain CI/CD pipelines using CircleCI.
• Deploy and maintain applications on AWS.
• Write unit, integration, and API tests.
• Monitor and troubleshoot applications in production.
• Participate in code reviews and architecture discussions.
• Collaborate with engineering, data science, AI, and product teams.

Required Technical Skills

Backend

• Python
• FastAPI
• REST APIs
• Pydantic
• Async Python
• SQL
• PostgreSQL

• Redis

   

Frontend

• Vue.js
• Angular
• JavaScript
• TypeScript
• HTML5
• CSS3
• REST API integration
• Responsive web development
• Modern frontend architecture and component-based development

Experience with Pinia/Vuex, RxJS, Angular Material, Tailwind CSS, or Bootstrap is a plus.

AI / LLM Engineering

• Large Language Models (LLMs)
• Generative AI
• Model Context Protocol (MCP)
• Retrieval-Augmented Generation (RAG)
• Prompt Engineering
• AI Agents / Agentic AI
• Tool and function calling
• Embeddings
• Semantic search
• Vector databases
• LLM evaluation and testing

Experience with LangChain, LangGraph, LlamaIndex, OpenAI, Anthropic, or AWS Bedrock is highly desirable.

Data Science & Data Engineering

• Pandas
• NumPy
• Scikit-learn
• Data preprocessing
• ETL/data pipelines
• Machine learning fundamentals
• Model evaluation

• Data analysis

   

DevOps & Cloud

• AWS
• Docker
• CI/CD
• CircleCI
• Git / GitHub
• Linux
• Cloud deployment and monitoring

Experience with Kubernetes, Terraform, GitHub Actions, AWS ECS/ECR, Lambda, S3, RDS, CloudWatch, IAM, and Bedrock is a plus.

Additional Preferred Skills

• Multi-agent AI systems
• MCP server architecture
• Langfuse or similar AI observability platforms
• RAG/LLM evaluation frameworks
• Microservices architecture
• Multi-tenant SaaS architecture
• OAuth 2.0 / JWT
• WebSockets
• Celery
• Kafka, RabbitMQ, or AWS SQS
• Pytest
• MLOps
• Application monitoring and observability
• Agile/Scrum development

Qualifications

• 5+ years of professional software engineering, full-stack engineering, AI/ML engineering, or related experience.
• Strong hands-on experience with Python.
• Professional experience with Vue.js and/or Angular.
• Experience developing REST APIs with FastAPI or similar Python frameworks.
• Practical experience building applications using LLMs and Generative AI.
• Understanding of RAG, MCP, embeddings, vector search, and prompt engineering.
• Experience with Docker and CI/CD.
• Familiarity with AWS cloud infrastructure.
• Strong debugging and problem-solving skills.
• Ability to work independently in a remote environment.
• Good written and verbal English communication skills.
• Ability to work and collaborate during U.S. business hours.

Position Details

Salary: $2,000–$2,500 USD/month
Employment: Full-Time
Location: 100% Remote
Working Hours: U.S. Time Zone

We are looking for an engineer who can work across the full application stack—from Vue.js/Angular frontends and Python/FastAPI backend services to RAG, MCP, AI agents, data pipelines, AWS infrastructure, and production deployment.

DevOps / Platform Engineer & Server Administrator

Employment Type: Full-Time, Remote
Working Hours: U.S. Time Zone
Salary: $2,000–$2,500 USD/month

About the Role

We are looking for an experienced DevOps / Platform Engineer & Server Administrator to manage and improve our cloud infrastructure, Linux servers, deployment platforms, CI/CD pipelines, container environments, networking, security, and production operations.

This is a hands-on infrastructure role. You will be responsible for keeping development, staging, and production environments stable, secure, scalable, observable, and easy for engineering teams to use.

The ideal candidate combines traditional Linux/System Administration skills with modern DevOps and Platform Engineering practices, including AWS, Docker, Kubernetes, Infrastructure as Code, CI/CD, monitoring, and automation.

Key Responsibilities

• Administer and maintain Linux-based production, staging, and development servers.
• Design, deploy, and maintain infrastructure on AWS.
• Build and maintain internal platforms that simplify application deployment and infrastructure management for developers.
• Manage containerized workloads using Docker and Docker Compose.
• Deploy and operate workloads using Kubernetes/EKS where appropriate.
• Design and maintain automated CI/CD pipelines.
• Automate infrastructure provisioning and configuration using Terraform and Ansible.
• Manage application deployments, releases, rollbacks, and environment configurations.
• Configure and maintain Nginx, Apache, reverse proxies, and load balancers.
• Manage DNS, domains, SSL/TLS certificates, firewalls, VPNs, and networking.
• Configure and maintain AWS VPCs, subnets, routing, security groups, IAM, and load balancers.
• Monitor server health, CPU, memory, disk utilization, network performance, and application availability.
• Implement centralized logging, monitoring, dashboards, and alerting.
• Manage backups, snapshots, retention policies, and disaster recovery procedures.
• Troubleshoot server, networking, container, database, deployment, and application infrastructure issues.
• Perform operating system updates, security patches, and infrastructure upgrades.
• Manage SSH access, IAM permissions, secrets, credentials, and production access.
• Improve infrastructure reliability, availability, scalability, and performance.
• Automate repetitive operational and administrative tasks.
• Support developers with local, development, staging, and production environments.
• Participate in incident response, root-cause analysis, and infrastructure improvements.
• Maintain infrastructure architecture and operational documentation.

Core Technical Skills

Linux & Server Administration

Strong hands-on experience with:

• Linux Administration
• Ubuntu / Debian / RHEL-based systems
• Bash / Shell scripting
• SSH
• Systemd
• Cron
• Package management
• File systems and storage
• User and permission management
• Process management
• Server performance troubleshooting
• OS patching and upgrades
• Disk and memory management
• Backup and recovery

CI/CD

Experience designing and maintaining pipelines with:

• CircleCI
• GitHub Actions
• GitLab CI
• Jenkins

Responsibilities include:

• Automated builds
• Automated testing
• Docker image builds
• Artifact management
• Security scanning
• Deployment automation
• Environment promotion
• Rollbacks
• Production releases

Networking

Strong understanding of:

• TCP/IP
• DNS
• HTTP / HTTPS
• SSL/TLS
• VPC networking
• Subnets
• Routing
• NAT
• Firewalls
• Security Groups
• VPNs
• Reverse proxies
• Load balancing
• CDN concepts
• Network troubleshooting

Monitoring & Observability

Experience with tools such as:

• Prometheus
• Grafana
• AWS CloudWatch
• Datadog
• ELK / OpenSearch
• Loki
• Sentry

The engineer will be responsible for implementing effective metrics, logs, dashboards, health checks, uptime monitoring, and alerting.

Security & Reliability

• IAM and least-privilege access
• Server hardening
• SSH security
• Secrets management
• Vulnerability scanning
• OS and dependency patching
• Container security
• Firewall management
• SSL/TLS management
• Audit logging
• Backup strategies
• Disaster recovery
• High availability
• Incident response

Platform Engineering Responsibilities

Beyond traditional DevOps, we are looking for someone who can improve the developer experience.

This includes:

• Standardizing deployment processes.
• Creating reusable infrastructure modules.
• Building self-service deployment capabilities.
• Standardizing Docker and Kubernetes environments.
• Improving CI/CD speed and reliability.
• Automating environment provisioning.
• Managing development, staging, and production environments consistently.
• Reducing manual deployment and operational work.
• Improving infrastructure observability.
• Establishing infrastructure standards and best practices.

Qualifications

• 3+ years of professional experience in DevOps, Platform Engineering, Cloud Engineering, SRE, Systems Engineering, or Linux Administration.
• Strong Linux/server administration experience.
• Strong hands-on AWS experience.
• Production experience with Docker.
• Experience with CI/CD pipelines.
• Experience with Terraform or similar Infrastructure-as-Code tools.
• Strong networking and troubleshooting knowledge.
• Experience with monitoring and observability platforms.
• Strong scripting and automation skills.
• Understanding of infrastructure and cloud security.
• Experience supporting production systems and responding to incidents.
• Ability to troubleshoot complex problems across infrastructure, applications, networking, and databases.
• Good written and verbal English communication skills.
• Ability to work independently in a remote environment.
• Availability during U.S. business hours.

Preferred Skills

• Kubernetes / EKS
• Helm
• Terraform
• Ansible
• Python
• CircleCI
• GitHub Actions
• Prometheus / Grafana
• ELK / OpenSearch
• Cloudflare
• Nginx
• Redis
• PostgreSQL / MySQL
• RabbitMQ / Kafka / AWS SQS
• Infrastructure security
• FinOps / AWS cost optimization
• High-availability architecture
• Disaster recovery planning

What We're Looking For

We are looking for someone who can operate across three areas:

Server Administration: Keep Linux servers, networking, storage, backups, access, and production environments healthy and secure.

DevOps: Automate builds, testing, deployments, infrastructure provisioning, monitoring, and operational processes.

Platform Engineering: Build standardized infrastructure and developer tooling that allows engineering teams to deploy and operate applications quickly and reliably.

The ideal candidate is comfortable taking ownership of infrastructure problems from initial investigation through resolution and long-term automation.

Software Engineer – ERP & QuickBooks Integration

Employment Type: Full-Time, Remote
Working Hours: U.S. Time Zone
Salary: $2,000–$2,500 USD/month

About the Role

We are looking for an experienced Software Engineer – ERP & QuickBooks Integration to develop, maintain, and enhance our ERP platform and its integrations with QuickBooks Online (QBO), QuickBooks Desktop, Payroll, CRM, and other third-party business systems.

This is a hands-on full-stack engineering role requiring strong experience with PHP, CodeIgniter (CI), Vue.js, APIs, databases, system integrations, and CI/CD.

The engineer will work directly with both technical teams and clients to understand business requirements, troubleshoot integration issues, and deliver reliable solutions for accounting, payroll, CRM, and ERP workflows.

Key Responsibilities

• Develop and maintain our web-based ERP platform using PHP, CodeIgniter, and Vue.js.
• Build and maintain integrations with QuickBooks Online (QBO).
• Support integration and data synchronization with QuickBooks Desktop.
• Develop QBO import/export and synchronization workflows.
• Integrate ERP modules with accounting, payroll, CRM, and other business systems.
• Build and maintain REST APIs and third-party API integrations.
• Develop automated synchronization for customers, vendors, invoices, payments, bills, expenses, employees, payroll, and other financial records.
• Implement data mapping and transformation between ERP and external systems.
• Handle synchronization conflicts, duplicate records, failed transactions, and data validation.
• Develop background jobs and scheduled synchronization processes.
• Troubleshoot API, authentication, OAuth, webhook, and integration issues.
• Work on ERP modules covering accounting, payroll, customer management, reporting, invoicing, and operational workflows.
• Develop responsive frontend interfaces using Vue.js, JavaScript, HTML, and CSS.
• Design and optimize relational database queries and schemas.
• Maintain and improve application performance, security, and reliability.
• Write unit, integration, and API tests.
• Maintain deployment processes and CI/CD pipelines.
• Containerize and deploy applications using Docker where appropriate.
• Monitor production environments and troubleshoot application and integration failures.
• Participate in code reviews, architecture discussions, and release planning.
• Communicate directly with clients to understand requirements, investigate problems, demonstrate solutions, and provide technical support.

Required Technical Skills

Backend Development

• PHP
• CodeIgniter (CI)
• REST API development
• Object-Oriented Programming (OOP)
• MVC architecture
• MySQL / SQL
• Database design and optimization
• Authentication and authorization
• Background jobs / scheduled tasks

Frontend Development

• Vue.js
• JavaScript
• HTML5
• CSS3
• REST API integration
• Responsive UI development
• Component-based frontend development

QuickBooks & ERP Integration

Strong experience or understanding of:

• QuickBooks Online (QBO) integration
• QuickBooks Desktop integration
• QBO APIs
• OAuth 2.0
• QuickBooks Web Connector or similar Desktop integration approaches
• Accounting data import/export
• Customer and vendor synchronization
• Invoice and payment synchronization
• Bills and expense synchronization
• Chart of Accounts
• Payroll-related data
• Financial reporting data
• Webhooks and event-driven synchronization
• Data mapping, validation, reconciliation, and error handling

ERP / Business Systems

Experience working with business applications such as:

• ERP systems
• Accounting systems
• Payroll systems
• CRM platforms
• Billing and invoicing systems
• Customer management
• Employee management
• Reporting and analytics
• Workflow automation

Integration Engineering Skills

The candidate should be comfortable designing and maintaining integrations between multiple systems, including:

• REST APIs
• OAuth 2.0
• Webhooks
• JSON / XML
• CSV and file-based imports/exports
• API authentication
• Data transformation and mapping
• Data synchronization
• Retry and error-handling mechanisms
• Integration logging and monitoring
• Duplicate detection and reconciliation
• Scheduled and asynchronous processing

DevOps & CI/CD

• Git / GitHub
• CI/CD
• Docker
• Linux
• AWS or similar cloud platforms
• Application deployment
• Environment configuration
• Database migrations
• Production monitoring
• Logging and troubleshooting
• Automated testing
• Release management

Experience with CircleCI, GitHub Actions, Jenkins, Terraform, or Kubernetes is a plus.

Client Communication

This role involves direct communication with customers and business stakeholders. The engineer should be able to:

• Participate in client meetings.
• Understand accounting and operational requirements.
• Translate business requirements into technical solutions.
• Explain technical issues clearly to non-technical stakeholders.
• Investigate and resolve client-reported issues.
• Provide realistic development estimates.
• Demonstrate completed functionality.
• Document integrations and workflows.
• Coordinate releases and integration changes with clients.

Qualifications

• 3+ years of professional software engineering or full-stack development experience.
• Strong experience with PHP and CodeIgniter.
• Professional experience with Vue.js.
• Experience building and maintaining REST APIs.
• Experience with QuickBooks Online integrations is strongly preferred.
• Experience with QuickBooks Desktop integration is a major advantage.
• Experience developing or supporting ERP, Payroll, CRM, accounting, or financial software.
• Strong SQL and relational database skills.
• Experience with third-party API integrations.
• Understanding of CI/CD and modern DevOps practices.
• Strong debugging and production troubleshooting skills.
• Good written and verbal English communication.
• Comfortable communicating directly with U.S.-based clients.
• Able to work independently in a remote environment.
• Available to work during U.S. business hours.

Preferred Experience

Experience with any of the following would be a strong advantage:

• QuickBooks Web Connector (QBWC)
• QuickBooks SDK / QBXML
• Intuit APIs
• Accounting and bookkeeping workflows
• Payroll integrations
• CRM integrations
• Payment gateway integrations
• Tax and financial reporting systems
• SaaS / multi-tenant applications
• AWS
• Docker
• Redis
• Queue/background processing
• Automated testing
• Application monitoring and observability

What We're Looking For

We are looking for more than a PHP developer. The ideal candidate understands how ERP, accounting, payroll, CRM, and third-party integrations work together and can take ownership of features from client requirements through development, integration, testing, deployment, and production support.

Strong integration and troubleshooting skills are especially important because the engineer will be responsible for maintaining reliable data flows between our ERP platform, QuickBooks, payroll systems, CRM platforms, and other external services.

Technical Recruiter – Software Engineering

Location: Ukraine — 100% Remote
Employment Type: Full-Time / Remote
Compensation: $1,000 USD per month

About the Role

We are looking for a motivated Technical Recruiter based in Ukraine to join our team and help us identify, engage, and recruit talented software engineers across Ukraine.

The primary focus of this position is proactive sourcing. You will be responsible for finding strong technical candidates, conducting initial screenings, managing the candidate pipeline, and coordinating interviews with our team.

Responsibilities

• Source and recruit software engineers throughout Ukraine.
• Proactively identify candidates through LinkedIn, Djinni, DOU, GitHub, job boards, professional communities, referrals, and other sourcing channels.
• Conduct initial screening calls to evaluate candidates' experience, technical background, communication skills, availability, and expectations.
• Recruit Backend, Frontend, Full-Stack, DevOps/Cloud, QA, Data, and AI/ML Engineers.
• Build and maintain a strong pipeline of qualified technical candidates.
• Write and publish job postings for the Ukrainian technology market.
• Coordinate interviews between candidates and hiring teams.
• Maintain accurate candidate records and recruiting status.
• Follow up with candidates throughout the recruitment process.
• Build long-term relationships with software engineers and develop a reusable talent network.

• Provide regular updates on sourcing activity, interviews, candidate quality, and hiring progress.

   

Requirements

• Previous experience as an IT Recruiter, Technical Recruiter, or Technical Sourcer.
• Experience sourcing and recruiting software engineers.
• Good understanding of the Ukrainian IT talent market.
• Strong LinkedIn and direct-sourcing skills.
• Basic understanding of software engineering roles and technologies.
• Strong communication and organizational skills.
• Ability to work independently and manage multiple open positions.
• Ukrainian language proficiency.
• Good written and spoken English.

Preferred Qualifications

• Existing network of software engineers in Ukraine.
• Experience recruiting Senior and Lead-level engineers.
• Familiarity with technologies such as Python, Java, JavaScript/TypeScript, React, Node.js, .NET, Go, Rust, AWS, Azure, Kubernetes, DevOps, Data Engineering, and AI/ML.
• Experience working with international or U.S.-based teams.
• Experience with Boolean search, LinkedIn Recruiter, ATS platforms, Djinni, and DOU.

Compensation & Work Environment

• Salary: $1,000 USD per month
• 100% remote
• Full-time position
• Flexible remote working environment
• International team
• Long-term opportunity based on performance
• Opportunity to develop and manage a strong Ukrainian engineering talent network

What Success Looks Like

You consistently source qualified software engineers, maintain an active candidate pipeline, communicate effectively with candidates, and help move strong candidates efficiently from initial outreach through interviews and hiring.