Valsoft

Acquires, grows vertical market software companies

Senior Full-Stack Developer

Full-Stack EngineeringConfirmed live in the last 24 hours

Full-timeBeirut, LebanonNo salary listed

About the Job

Requirements

Strong affinity with the Microsoft development ecosystem, particularly C#/.NET and SQL Server.
Substantial experience delivering and maintaining production software, with solid command of backend development, APIs, and relational databases.
Comfort with JavaScript/TypeScript, HTML, CSS, and a modern frontend framework, including selecting maintainable solutions and explaining architectural trade-offs.
Ability to improve established systems as well as build new ones, and to explain when modernisation is worth the investment.
Active use of AI development tools, including breaking work into well-defined tasks, providing useful context, guiding an agent, and critically evaluating its output.
Ability to review and test AI-generated code, explain how it works, and identify incorrect assumptions, security issues, and unnecessary complexity.
Responsible handling of source code, credentials, and customer information when using AI tools.
Hands-on experience building AI-powered applications and connecting models to business data, tools, and APIs.
Understanding where an agent is useful and where conventional software is more dependable.
Ability to design for permissions, tenant isolation, usage limits, and audit trails, use human approval where needed, and account for model cost and response time in feature viability.
Ability to turn a requirement into a coherent interface without every interaction specified in advance.
Attention to visual hierarchy, consistency, accessibility, responsiveness, sensible defaults, clear feedback, validation, and well-designed loading, empty, and error states.
Ability to validate requirements, assumptions, and acceptance criteria before building; inspect and test during development; and verify actual behaviour, including edge cases, permissions, failure scenarios, and regression risks, before considering work finished.
For AI features, ability to verify resulting actions and data changes, not just the model’s response.
Ability to organise own work and move problems forward without constant direction; exercise judgment on when to decide, involve a colleague, or escalate.
Clear communication with technical and non-technical colleagues, constructive disagreement, receptiveness to feedback, and knowledge sharing.

Responsibilities

Own features from problem to production by clarifying underlying needs, challenging incomplete requirements, proposing practical solutions, and carrying work through implementation, testing, release, and follow-up.
Develop and improve backend services, APIs, data models, and user interfaces across the full stack, with attention to security, performance, data integrity, and maintainability.
Translate sophisticated retail processes into clear, efficient interfaces and consider the complete user journey beyond individual screens.
Build AI-powered agents that use RetailVista data and APIs to complete business tasks.
Work with product and commercial colleagues on customer value, adoption, usage metering, and running costs.
Apply AI-assisted and agentic workflows to investigation, prototyping, development, refactoring, testing, and documentation; share approaches that improve team productivity and quality.
Improve established code, contribute useful code reviews, share knowledge, and work closely with colleagues in development, support, and implementation.

Desired Qualifications

Experience in retail, ERP, POS, or other business-critical software.
Experience with automated testing, CI/CD, incremental modernisation, or introducing AI development practices into a team.

Senior Full-Stack Developer - NFX

Valsoft Corporation · Beirut, Lebanon (Hybrid) · Full-time · Posted 2026-10-22

Workplace: hybrid

Department: Research & Development

Description

Aspire Software is looking for a Senior Full-Stack Developer to join our team in Lebanon.

Here is a little window into our company: Aspire Software operates and manages wholly owned software companies, providing mission-critical solutions across multiple verticals. By implementing industry best practices, Aspire delivers a time sensitive integration process, and the operation of a decentralized model has allowed it to become a hub for creating rapid growth by reinvesting in its portfolio.

About the Job:

We are looking for a senior full-stack developer with strong engineering skills, sound UI/UX judgment, and hands-on experience with AI. You will build AI-powered product features as well as use AI tools in your own development work. At NedFox, we develop RetailVista: an enterprise-grade retail platform covering POS, inventory, finance, omnichannel, logistics, and more. We serve both smaller retailers and complex enterprise customers.

We are a product company, not a bespoke development agency. Your work should add reusable capabilities to RetailVista, with clear workflows and code the team can maintain. Our goal is for agentic products and services to generate 10% of annual recurring revenue (ARR). You will play a hands-on role in building capabilities that customers are willing to pay for.

What you will do

Own features from problem to production. Clarify the underlying need, challenge incomplete requirements, propose a practical solution, and take it through implementation, testing, release, and follow-up.
Develop across the full stack. Build and improve backend services, APIs, data models, and user interfaces, with attention to security, performance, data integrity, and maintainability.
Make complex workflows intuitive. Translate sophisticated retail processes into clear, efficient interfaces. Think beyond individual screens to the complete user journey.
Build AI-powered features. Develop agents that use RetailVista data and APIs to complete business tasks.
Work with product and commercial colleagues on customer value, adoption, usage metering, and running costs.
Use AI to improve delivery. Apply AI-assisted and agentic workflows to investigation, prototyping, development, refactoring, testing, and documentation. Share approaches that genuinely improve team productivity and quality.
Strengthen the product and the team. Improve established code, contribute useful code reviews, and share knowledge. Work closely with colleagues in development, support, and implementation.

Requirements

Microsoft-stack and full-stack capability (essential):
Strong affinity with the Microsoft development ecosystem, particularly C#/.NET and SQL Server.
Substantial experience delivering and maintaining production software, with solid command of backend development, APIs, and relational databases.
Comfortable with JavaScript/TypeScript, HTML, CSS, and a modern frontend framework, choosing maintainable solutions and able to explain architectural trade-offs.
Able to improve established systems as well as build new ones, and to explain when modernisation is worth the investment.

AI-assisted development:

Actively uses AI development tools, breaks work into well-defined tasks, provides useful context, guides an agent, and critically evaluates its output.
Reviews and tests AI-generated code, can explain how it works, and spots incorrect assumptions, security issues, and unnecessary complexity.
Handles source code, credentials, and customer information responsibly when using AI tools.

AI product engineering:

Hands-on experience building AI-powered applications and connecting models to business data, tools, and APIs.
Understands where an agent is useful and where conventional software is more dependable.
Designs for permissions, tenant isolation, usage limits, and audit trails, with human approval where needed, and accounts for model cost and response time in feature viability.

UI/UX judgment:

Turns a requirement into a coherent interface without every interaction specified in advance.
Attentive to visual hierarchy, consistency, accessibility, responsiveness, sensible defaults, clear
feedback, validation, and well-designed loading, empty, and error states.

Validation and verification:

Validates requirements, assumptions, and acceptance criteria before building, inspects and tests during development, and verifies actual behaviour including edge cases, permissions, failure scenarios, and regression risks before calling work finished.
For AI features, verifies the resulting actions and data changes, not just the model’s response.

Ways of working:

Organises own work and moves problems forward without constant direction; knows when to decide, when to involve a colleague, and when to escalate.
Communicates clearly with technical and non-technical colleagues, disagrees constructively, receives feedback without defensiveness, and shares knowledge rather than becoming a bottleneck.
Valuable additional experience: retail, ERP, POS, or other business-critical software; automated testing; CI/CD; incremental modernisation; or introducing AI development practices into a team.

Apply

Apply at Valsoft Corporation

About the Company

Valsoft

Acquires, grows vertical market software companies

Valsoft is a company that buys software businesses that serve specific, essential industries (like automotive and broadcasting) and helps them grow over the long term. It focuses on vertical market software—programs that are built for a particular industry—and keeps the acquired companies independent while giving them extra resources, best practices, and access to a global network. The core idea is to improve how these software businesses operate and expand their reach, rather than building new products from scratch. The main way Valsoft works is to purchase a niche software company, streamline its operations, and partner with the existing management team to drive steady growth. This approach sets Valsoft apart from others by emphasizing patient, long-term ownership and collaboration within a diverse portfolio of niche software. The goal is to create durable, profitable companies that continue to serve their essential customers efficiently and expand into new markets.

Company size: 501-1,000
Company stage: Growth Equity (Venture Capital)
Total funding: $420M
Headquarters: Montreal, Canada
Founded: 2015

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