Hire Delphi developers

Build complex, enterprise-grade applications with expert Delphi developers ready to join your team.

Hire Delphi developers

Developers who got their wings at

How it works

How to hire a Delphi developer through our platform

1

Place a free request

Fill out a short form and check out our ready-to-interview developers

2

Tell us about your needs

On a quick 30-min call, share your expectations and get a budget estimate

3

Interview the best

Get 2-3 expertly matched candidates within 24-48 hours and meet the worthiest

4

Onboard the chosen one

Your developer starts with a project—we deal with a contract, monthly payouts, and what not

Testimonials

Start to finish in under a week with zero wasted time

Reached out on Monday evening, connected Tuesday morning, had four qualified candidates by Wednesday.

Brian DeSpainBrian DeSpainCEO, 10X ERP
High quality, well-qualified developers

We had an excellent experience. Process is fast from the initial intake through setting up payment.

Katie RoyKatie RoyExecutive Director, The SPEND Initiative
7 developers hired in 24 hours

The developers helped us speed up. They quickly learned their part of the app and we’re grateful for their contribution.

Conor MackenConor MackenDirector of Engineering, tvScientific

What we do for you

Vet every developer

All our developers are fully vetted and tested for both soft and hard skills. No surprises!

1000+ already scanned profiles

Learn your needs

On a quick 30-min call, share your expectations and get a budget estimate

Human-centered estimation

Shortlist the best matches

Get 2-3 expertly matched candidates within 24-48 hours and meet the worthiest

Match in a 24 hours

Handle the paperwork

Your developer starts with a project—we deal with a contract, monthly payouts, and what not

Hire after 1–2 interviews

The lemon tea

Why hire Delphi developers through our platform?

Find devs with skills you can trust with Lemon.io, so you can stop looking and start making progress again.

What you should know about modern Delphi devs

Hiring Guide: Delphi Developers

If you’re planning to hire Delphi developers, you’re looking for professionals skilled in one of the most enduring and versatile programming languages for Windows and cross-platform development. Delphi (based on Object Pascal) is widely used for building high-performance desktop, mobile, and enterprise software. From legacy modernization to new application development, experienced Delphi developers can help you maintain reliability while embracing modern architectures.

Why Hire Delphi Developers?

Delphi remains a go-to technology for many industries that require long-term application stability and high performance, including finance, healthcare, logistics, and manufacturing. Modern Delphi—powered by Embarcadero’s RAD Studio—enables cross-platform apps for Windows, macOS, iOS, and Android, all from a single codebase. Hiring Delphi developers ensures you can extend or modernize mission-critical systems without downtime or full rewrites.

Core Responsibilities of Delphi Developers

     
  • Design and develop high-performance applications using Delphi and Object Pascal.
  •  

  • Modernize legacy Delphi applications to support new platforms or frameworks.
  •  

  • Integrate Delphi software with REST APIs, SQL databases, and external systems.
  •  

  • Maintain and debug existing codebases to improve reliability and performance.
  •  

  • Develop user interfaces using the Visual Component Library (VCL) or FireMonkey (FMX).
  •  

  • Implement data access layers with FireDAC or ADO components for efficient database management.
  •  

  • Collaborate with QA and DevOps teams to ensure continuous deployment and testing.

Key Technical Skills to Look For

     
  • Languages & Frameworks: Object Pascal, Delphi 10.x (RAD Studio), VCL, FMX, and C++ interoperability.
  •  

  • Databases: MySQL, Firebird, Oracle, PostgreSQL, and MS SQL Server.
  •  

  • API & Integration: REST, SOAP, JSON, XML, and HTTP client-server communication.
  •  

  • Tools: FireDAC, ADO, Indy components, and RAD Studio IDE.
  •  

  • UI/UX: Form-based and component-driven GUI development using VCL and FireMonkey.
  •  

  • Version Control: Git, SVN, or Mercurial for code collaboration.
  •  

  • Cross-Platform Expertise: Delphi for Windows, macOS, iOS, and Android builds.

When to Hire Delphi Developers

     
  • When you need to maintain or refactor large legacy applications built with Delphi or Pascal.
  •  

  • When developing enterprise-grade Windows or cross-platform desktop apps.
  •  

  • When migrating applications to cloud-connected or database-driven systems.
  •  

  • When building low-latency, reliable software for industrial or financial use cases.
  •  

  • When modernizing existing applications without disrupting mission-critical operations.

How to Hire the Right Delphi Developer

1. Define Your Modernization or Development Goals

Decide if your project involves maintaining legacy Delphi code, refactoring into a newer framework, or building new applications from scratch. This helps determine whether you need classic Delphi expertise or experience with newer RAD Studio releases.

2. Assess Technical Depth

Evaluate candidates on their experience with both Object Pascal and modern Delphi frameworks. Review their familiarity with FireDAC for data access, VCL for Windows UI, and FMX for cross-platform mobile development.

3. Interview Questions

     
  • What’s the difference between VCL and FireMonkey in Delphi?
  •  

  • How would you optimize performance in a Delphi database application?
  •  

  • Describe your experience with migrating legacy Delphi systems to modern environments.
  •  

  • How do you handle REST API integrations in Delphi?
  •  

  • What are common pitfalls when developing with multi-threaded Delphi applications?

4. Practical Test

Ask candidates to build a simple CRUD application using Delphi that integrates with a PostgreSQL or SQLite database. Evaluate their code readability, component usage, and ability to apply best practices.

Average Cost of Hiring Delphi Developers

Delphi developers’ rates vary depending on expertise, region, and project complexity:

     
  • Junior Developers (1–3 years): £35–£55/hour
  •  

  • Mid-Level Developers (3–6 years): £60–£90/hour
  •  

  • Senior Developers (7+ years): £95–£130/hour

When you hire through Lemon.io, you gain access to vetted Delphi developers with experience in enterprise software, legacy maintenance, and cross-platform modernization.

Why Hire Through Lemon.io?

Lemon.io connects you with top Delphi engineers who combine deep legacy system experience with modern development practices. Whether your goal is to optimize a Windows-based ERP, rebuild an industrial control system, or extend cross-platform functionality, our experts deliver reliable and scalable solutions.

Hire Expert Delphi Developers →

FAQs About Hiring Delphi Developers

 
  

What is Delphi used for?

  

   

Delphi is used for developing high-performance desktop, mobile, and enterprise applications, especially in industries that require robust, long-term software systems.

  

 

 

  

Is Delphi still used today?

  

   

Yes. Delphi remains actively maintained by Embarcadero and widely used in sectors that rely on reliable and high-speed software solutions.

  

 

 

  

Can Delphi create cross-platform applications?

  

   

Yes. With FireMonkey (FMX), Delphi can build applications for Windows, macOS, iOS, and Android from a single codebase.

  

 

 

  

What is the difference between VCL and FMX?

  

   

VCL is used for building Windows desktop applications, while FMX enables cross-platform app development using the same Delphi codebase.

  

 

 

  

Can I hire remote Delphi developers through Lemon.io?

  

   

Yes. Lemon.io connects you with experienced Delphi developers ready to work remotely on your projects with quick onboarding and flexible arrangements.

  

 


Book a call with an expert so you can be sure in your hiring strategy

Book a call

Why hire Delphi

Over 6500 companies use Delphi as their main framework, including giants like Google, Amazon and Lyft.

High-quality web apps

Delphi's modular approach lets devs reuse components, so they can seamlessly manage app complexity.

Faster development process

Delphi's architecture and a vast library of pre-built components speed up development, so you can get to market sooner.

Enjoyable user experience

From smooth, responsive interfaces to reduced loading times, devs can use Delphi to boost usability.

Scaling made easy

Delphi's modular, component-based architecture makes it easy to scale applications as traffic grows.

Case studies

Aerospace

The experience with Lemon.io has been fantastic. The interview process has been good, the caliber of people – excellent and integration has been very smooth.

Marc Horowitz
Marc HorowitzCOO of SkyFi
Explore case
Telecommunications

We needed extra developers to clean off all these bugs so the company could skyrocket.

Conor Macken
Conor MackenDirector of Engineering
Explore case
AI

We needed extra AI engineers to keep our ambitious project running.

Mike Lukiman
Mike LukimanFounding Senior Software Engineer at Everstar.ai
Explore case

Frequently asked questions

Where can I find Delphi developers?

There are several channels to find Delphi developers. You can place job listings on different freelance platforms and then review developer profiles. You can also follow job boards such as Indeed, LinkedIn, or Glassdoor to look for profiles of Delphi developers. By participating in technology communities such as Stack Overflow, Reddit, and others you can establish communication with developers experienced with Delphi while professional networks like LinkedIn or Xing can connect you directly to interested candidates. There are also online forums focused on Delphi development, like the Embarcadero Delphi forum. The local meetups, tech conferences, and networking events are also an excellent way to find developers.

Lemon.io and other recruitment agencies/platforms that focus on finding remote tech talent can also aid in your developer search. With these channels, you can easily find good candidates.

What is the no-risk trial period for hiring a Delphi developer on Lemon.io?

We have built our hiring process to make it risk-free while ensuring that it helps you find the talent specific to your requirements. At Lemon.io, we offer trial periods of up to 20 hours after you start work with a Delphi developer. The trial period will help you decide whether the developer is suitable for your project or not. When the trial period is up and if you are happy with your developer we will bill you for that time (at our very affordable rates) and continue working together. If the developer does not meet your requirements, we can always find you another good candidate for your project.

Are Delphi developers in demand?

There is still demand for Delphi developers, especially for legacy systems and applications. There are many companies that continue to use Delphi for maintaining and updating their software systems. The demand is frequently generated by the requirement to support or upgrade these legacy systems. Meanwhile, because of Delphi’s strength as a desktop and enterprise application builder, it continues to cater well to specialized projects. Whereas the market for Delphi developers may not be as booming as it is for other, more modern, and widespread programming languages or frameworks, there are some sectors – finance, and healthcare, to name a few – where there is still a demand.

How quickly can I hire a Delphi developer through Lemon.io?

You can hire Delphi developers through Lemon.io in as little as one week. Upon contacting Lemon.io, we will introduce you to a validated talent pool.

The hiring process at Lemon.io involves several steps. First, free consultation, which is usually 1 or 2 days. This is followed by the matchmaking to find a good fit Delphi developer from our talent pool, normally completed within 24-48 hours. Next, you can start interviewing the shortlisted candidate(s) to validate if they are right for your project. Usually, it takes about 3 days considering both your and a candidate’s availability. If you like a candidate we can proceed with arranging a paid trial period. If a selected developer fits your project requirements you can continue working with that developer.

How much does a Delphi developer charge per hour?

Hourly rates of Delphi developers might depend on many factors such as experience, location, and how complicated the project is. If you are hiring in areas with lower cost of living like Eastern Europe or some regions in Asia, you may pay less per hour than, say, somewhere more expensive like North America and Western Europe, where they tend to charge higher rates. You might pay more even for the specific expertise of an engineer or time-sensitive work.

The average rates for Delphi developers: junior developers earn $20-40 per hour; mid-level developers – $40-70 per hour; and senior professionals earn between about $70-120+ per hour.

What is the vetting process for developers at Lemon.io?

At Lemon.io, we developed a rigorous vetting process to find the best developers for our clients. This process is divided into several phases:

1. Application & shortlisting candidates. Profiles are submitted by candidates and then automatically vetted for experience, tech stack, English proficiency and location. The automated system decides whether they meet the first filtering criteria or not.

2. Profile verification. We verify all skills and experience the candidates include in their CVs and LinkedIn profiles.

3. Tech screening call. Candidates have a screening call with recruiters and respond to technical questions on Coderbyte.

4. Hard skills interview with technical and live coding tasks. Finally, we test the coding skills and tech knowledge by giving a set of live coding tasks.

How can your business benefit from hiring a Delphi developer?

Hiring a Delphi developer gives a few benefits, especially if you work with legacy systems or need specific application functionality.

1. Maintenance of legacy systems. Businesses come to us with Delphi-built legacy systems still in place. These systems can be kept up to date and in good running order (including performance tuning) by a Delphi developer.

2. Cost-efficiency. Hiring a dedicated Delphi developer can be cost-efficient, especially if your company has existing Delphi applications. Rather than moving to another platform, a Delphi developer can complement and expand the features of your existing software.

3. Quick development, known as rapid application development (RAD) with Delphi. An experienced Delphi developer knows how to quickly develop, test, and deploy new applications to reduce the time-to-market of a product.

4. Cross-platform development. Delphi supports cross-platform development for Windows, macOS, iOS and Android. This allows a Delphi developer to build applications that function across different platforms, which in turn increases your product’s reach.

5. Customizable and flexible solutions. A Delphi developer can build a customized application that caters to your business needs.

Why should I use Lemon.io for hiring developers?

By choosing Lemon.io to hire developers, you can be confident your software will be in the best hands. Each developer at Lemon.io is rigorously screened through technical tests, live interviews, and test projects.

Our platform connects you with developers from different countries making it easy to find the one who best suits your project. With our matching system, we can connect you to top developers ready to work on your project within 48 hours. Moreover, Lemon.io provides a paid trial period of up to 20 hours that will help you determine if a developer performs as expected. If a selected candidate doesn’t meet your expectations we’ll find an immediate replacement for them. Additionally, Lemon.io assists with your hiring and engagement process, covering communication and project management as well as issue resolution.

Delphi is not the best fit?

Hire developers by role

Ready-to-interview

Vetted Delphi developers are waiting for your request. Hire in-house or on contract. Zero complexity either way.

Hire Delphi developer