Junior App Developer (React & MongoDB Integration)

JobStart Scheme; Ballymoney; Hybrid; GBP 80,000 - 100,000; Full time

Job summary

A leading technology initiative is seeking a motivated Junior App Developer in Ballymoney. The role involves developing an app using React Native and MongoDB, with opportunities for hands-on experience in UI/UX design and API integration. This is ideal for someone eager to learn and grow within the tech sector. The position offers flexible hours, making it suitable for early-stage professionals looking to enter the field.

Qualifications

• Interest in learning and developing applications.
• Familiarity with front-end and back-end development.
• Ability to work collaboratively within a team.

Responsibilities

• Develop and maintain the mobile application using React Native.
• Support API connections and database interactions.
• Participate in team meetings with input and ideas.

Skills

Interest in app development

Good understanding of databases

Strong attention to detail

Good communication skills

Organised and reliable

Familiarity with React Native

Basic knowledge of API integration

Understanding of UI/UX design principles

Experience with mobile app testing

Creative mindset

Tools

MongoDB

React Native

Node.js

Express frameworks

Git/GitHub

Job description

Overview

THE EMPLOYER IS: ELEVEG. We are seeking a motivated and innovative Junior App Developer to join our growing Eleveg team. This role is ideal for someone eager to learn, contribute new ideas, and grow with an early-stage Agri-tech start-up developing an innovative growing and meal-planning app. The successful candidate will support front-end and back-end development using React Native and MongoDB, assist with debugging, testing, and app updates, and help integrate new features that connect users’ growing data with meal plans. You’ll work closely with our development team and gain hands-on experience in UI/UX design, API integration, and database management, while developing key problem-solving and teamwork skills. We’re not expecting expert-level experience - just curiosity, creativity, and a willingness to learn. This is an excellent opportunity for someone passionate about technology, sustainability, and innovation who is looking to take their first step in the tech sector.

Responsibilities

• Assist in developing and maintaining the Eleveg mobile application using React Native and MongoDB.
• Support front-end and back-end integration, including testing and debugging of new features.
• Help design, update, and refine the user interface (UI) to improve user experience.
• Work with the development team to implement and test API connections between app modules and databases.
• Participate in regular team meetings, contributing creative ideas and problem-solving input.
• Maintain accurate records of development tasks, progress, and testing outcomes.

Skills and Qualifications

• Interest in app development, problem-solving, and learning new technologies.
• Good understanding of databases and how data connects to applications (experience with MongoDB is a plus).
• Strong attention to detail and ability to follow technical instructions accurately.
• Good communication skills and ability to work effectively within a small, collaborative team.
• Organised, reliable, and able to manage tasks and meet deadlines.
• Familiarity with React Native, Node.js, or Express frameworks.
• Basic knowledge of API integration and version control tools such as Git/GitHub.
• Understanding of UI/UX design principles and user-centred development.
• Experience with mobile app testing or debugging tools.
• Creative mindset with an eagerness to explore new ideas and improve digital user experiences.

Further Information

Working hours: up to 25 hours per week. Flexible/reduced hours may be available upon approval. Additional hours may be offered depending on availability; this should be discussed directly with the employer before starting employment.

The job advert may end before the closing date if requested by the employer.

Application Information

JOBSTART IS OPEN TO WORKING AGE BENEFIT CLAIMANTS WHO ARE DEEMED ELIGIBLE BY A WORK COACH. If you are on Universal Credit, please contact your Work Coach via your Journal. If you are in receipt of any other working age benefit, please contact your local Jobs & Benefits Office on 0800 001 5782.

Vacancy ID 1742239 | Job Sector IT | Area All of Northern Ireland | Location Ballymoney & Hybrid (home working) | Salary 16-17 £7.55, 18-20 £10.00, 21 plus £12.21 per hour | No. vacancies 1 | Contract Type Temporary | Weekly hours 25 | Published date 29/10/2025 | Closing date 09/12/2025

Area: Derry or Londonderry
Closing date: 06 Nov 2025

Area: All of Northern Ireland
Closing date: 07 Nov 2025