Junior Technical Support Engineer

ACS Performance; Croydon; On-site; GBP 30,000 - 32,000; Full time

Job summary

ACS Performance is seeking a Junior Technical Support Engineer in Croydon. The role focuses on troubleshooting across devices, networks and Windows environments, with a hands-on path to grow technical knowledge and responsibilities.

You will support remotely deployed devices, investigate connectivity issues and help maintain technical documentation. Hybrid work arrangement is in place, with four days in the office and one day from home.

Qualifications

• 1–2 years in IT support, infrastructure, field engineering or operations, or demonstrable fundamentals from projects.
• Good networking fundamentals and ability to troubleshoot IP addressing and connectivity.
• Familiarity with VPNs, secure remote access and Windows environments.
• Ability to read event logs, use command-line tools, and configure systems.
• Structured, methodical approach to troubleshooting and documentation.

Responsibilities

• Troubleshoot issues across devices, networks and OS.
• Diagnose faults and identify root causes rather than symptoms.
• Support remotely deployed devices across multiple locations.
• Investigate connectivity and device configuration issues.
• Maintain records, tickets and SOPs; assist with documentation.

Skills

Networking fundamentals

VPNs and remote access

Windows operating systems

Event logs and CLI

Structured troubleshooting

Documentation

APIs/SQL basics

Device security basics

Hands-on IT support

Job description

Jobs - Junior Technical Support Engineer

Job vacancy - Junior Technical Support Engineer

Position: Junior Technical Support Engineer

Reference: JBacs1960

Location: Croydon

Salary: £30,000 - £32,000 per annum

Junior Technical Support Engineer

Location: Croydon - hybrid working (4 days office-based, 1 day working from home)

Salary: Competitive, depending on experience

Employment eligibility: Applicants must have the right to work in the UK without sponsorship

The Opportunity

We're looking for a Junior Technical Support Engineer to join a growing technical operations team.

This is a hands-on role suited to someone at the beginning of their technical career who enjoys understanding how systems work, solving real-world problems and developing their skills across networking, devices, infrastructure and technical operations.

You might already have experience working in IT support, infrastructure, field engineering or technical operations. Equally, you may have developed strong practical skills through projects, home labs, qualifications or study and are looking for the opportunity to put those skills into practice professionally.

You’ll work with technology deployed across multiple locations, helping to keep systems and devices operational, investigating faults and supporting the wider team with day-to-day technical challenges.

What You’ll Be Doing

Your responsibilities will include:

• Troubleshooting technical issues across devices, networks and operating systems.
• Diagnosing faults methodically and identifying root causes rather than simply treating symptoms.
• Supporting remotely deployed devices and systems across multiple locations.
• Investigating connectivity, networking and device configuration issues.
• Working with Windows environments, including system configuration, command-line tools and event logs.
• Supporting secure remote access and following good security practices.
• Maintaining accurate technical documentation, tickets and operational records.
• Helping create and improve SOPs, troubleshooting guides and internal documentation.
• Supporting device management, inventory and technical operations processes.
• Working with technical and non-technical colleagues to resolve issues.
• Supporting occasional site visits when hands-on investigation is required.
• Learning new technologies and gradually taking on greater technical responsibility as your experience develops.

What We’re Looking For

You don’t need to know everything already. We’re particularly interested in candidates who have strong technical fundamentals, a logical approach to troubleshooting and a genuine desire to learn.

Ideally, you’ll have:

• A good understanding of networking fundamentals, including IP addressing and basic network troubleshooting.
• An understanding of VPNs and secure remote access.
• Good working knowledge of Windows operating systems.
• Familiarity with Windows event logs, command-line tools and system configuration.
• A structured and methodical approach to troubleshooting.
• An understanding of endpoint security and basic device compliance.
• A basic understanding of APIs and SQL.
• The ability to explain technical concepts clearly and without unnecessary jargon.
• Strong documentation and organisational habits.
• Around 1-2 years of hands-on experience in IT support, infrastructure, field engineering or technical operations or strong demonstrable technical fundamentals gained through projects, labs, qualifications or study.

Above all, we’re looking for evidence that you enjoy working with technology and can apply what you know to real problems.

It Would Be Great If You Also Have

Experience in any of the following would be useful, but isn’t essential:

• Configuring routers, switches or firewalls.
• Remote device management or Mobile Device Management (MDM) platforms.
• IP CCTV, ANPR systems, Raspberry Pi or other edge/IoT devices.
• Cloud-hosted systems.
• Working with APIs or SQL.
• Microsoft 365 administration.
• Multi-site or distributed technology environments.
• Ticketing, operational tooling or password management platforms.

We’re more interested in your ability to learn and troubleshoot than in whether you’ve worked with a particular technology or vendor.

About You

You’ll enjoy this role if you’re someone who:

• Is naturally curious about how technology works.
• Likes investigating problems and finding the underlying cause.
• Takes ownership rather than waiting for someone else to solve an issue.
• Remains calm and methodical when something isn't working.
• Communicates clearly with both technical and non-technical colleagues.
• Keeps good records and understands the value of documentation.
• Is organised and reliable.
• Is comfortable working in a small, fast-moving technical environment.
• Wants to develop a broad technical skill set rather than being limited to one area of IT.

Working Arrangements

The role is primarily based in Croydon, with four days per week in the office and one day working from home.

There may occasionally be a need to visit other sites to investigate or support technical equipment. A full UK driving licence would therefore be useful, but is not essential.