Back End Developer

T-pro; Leinster; On-site; EUR 55,000 - 75,000; Full time

Job summary

A leading global VAT solutions provider seeks a Mid-Senior Back End Developer for a pivotal role in Kilkenny. In this position, you will help transition from PHP to C#, contributing to the company's modernization efforts and enhancing their flagship product. Join a recognized workplace that prioritizes your professional growth through mentorship and development opportunities.

Benefits

Flexible Working Policy

Competitive annual leave

Employee-led CSR Programme

Professional & Personal Development

Rewards & Recognition

Qualifications

• 5+ years of experience in C# and 2+ years with PHP Laravel.
• Experience in migrating legacy systems to modern stacks.
• Familiar with serverless and cloud-native architecture.

Responsibilities

• Support the migration from PHP/Laravel to scalable C# services.
• Collaborate on the rollout of a self-service portal in Comply.
• Champion performance, reliability, and maintainability in backend systems.

Skills

C#

PHP

AWS

Agile

Problem Solving

Education

Bachelor’s degree in Computer Science or a related field

Job description

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Fintua is a leading global VAT solutions provider. Our integrated technology streamlines the processes of global VAT compliance, recovery & payment for Enterprise and Medium sized businesses worldwide.

Fintua is part of CluneTech, a suite of companies providing cutting-edge solutions that simplify global business. We have been recognised as a Great Place to Work for 9 consecutive years, a “Best Workplace for Women” for the past 5 years and most recently, we were delighted to be recognised as a “Best Workplace in Tech” for the accreditation’s second year.

Our global footprint encompasses 35 offices worldwide and we do business across 100 countries on a daily basis.

This role requires two days per week in our Kilkenny HQ.

This is a high-impact senior role reporting directly to the Chief Engineer. You'll have real influence over the future of an award-winning FinTech company, recently recognized as one of Ireland’s best places to work.

You will play a key part in Fintua’s backend modernization journey—helping transition from PHP to C# to align with the wider development team’s expertise. This journey offers direct exposure to the heart of our platform, followed by the opportunity to help shape the future of our flagship Comply product.

We’re seeking a mid-level backend developer with ~5 years of experience. This role is a mentored growth path, with training in C#, AWS, and architecture. You'll work closely with senior engineers and leadership to build toward a future Principal Engineer role.

To support your progression, we provide structured mentorship, learning opportunities, and performance-based bonuses. While initial delivery may be slower, we’re committed to investing in long-term internal talent.

You'll contribute to aligning backend systems with our evolving C#-based stack while maintaining existing PHP Laravel systems. You'll also support our transition to a self-service architecture within Comply—driving faster onboarding, improved scalability, and international expansion.

Key Responsibilities

• Support the migration from PHP/Laravel to scalable, cloud-native C# services.
• Maintain and extend existing PHP Laravel applications with the support of an established team.
• Contribute to the design of serverless infrastructure and execution environments (experience with serverless models is essential).
• Collaborate on the rollout of a self-service portal in Comply.
• Promote best practices in coding standards, testing, and design patterns.
• Work cross-functionally with DevOps, frontend, and product teams to align delivery with business objectives.
• Help implement a Secure Software Development Lifecycle (SSDLC) alongside DevOps and engineering leadership.
• Champion performance, reliability, and maintainability in backend systems.

The skills that you have:

• 8+ years of overall software development experience.
• 5+ years in C# and 2+ years with PHP Laravel.
• Track record of migrating legacy systems to modern stacks.
• Comfortable working in AWS environments (Lambda/Fargate, DynamoDB/NoSQL, RDS).
• Familiarity with serverless and cloud-native architecture.
• Solid grasp of microservices and event-driven design.
• Experience working in Agile, collaborative environments.
• Clear communicator, strong problem solver, and self-driven contributor.
• Bachelor’s degree in Computer Science or a related field.

Nice to Have

• Experience using AI tools to assist in codebase migration.
• Familiarity with DevOps practices, CI/CD, and Infrastructure as Code (e.g., Terraform).
• Background in fintech, tax, or compliance domains.
• Understanding of multi-tenancy and secure data isolation.
• Exposure to frontend frameworks (React or similar).
• Appreciation for performance testing and high-throughput system design.

At Fintua, we are a community of like-minded individuals committed to excellence in everything we do. We create an innovative, collaborative, and supportive workplace that allows our brilliant people to unleash their potential.

Recognised as a both a Great Place to Work and Deloitte Best Managed Company, we believe that recognition goes much deeper than just financial rewards. Therefore, in addition to a competitive salary, we also offer an exclusive benefits package that includes:

• Flexible Working Policy with a combination of remote and office working and a flexible approach to working hours
• Competitive annual leave and a number of other leaves including IVF, compassion, marriage, maternity and paternity leave
• Employee-led CSR Programme, CluneTech Cares, with one paid Volunteer Day per year
• Milestone Recognition Programme
• Professional & Personal Development
• Rewards & Recognition

Fintua is an Equal Opportunity Employer and is committed to the principle of equal employment opportunity for all employees. We are committed to building and maintaining a culture which is free from discrimination and harassment and where all employees can bring their best selves to work.

Seniority level

• Seniority level

  Mid-Senior level

Employment type

• Employment type

  Full-time

Job function

• Job function

  Information Technology

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