Account Assistant – Integration Support

Trinity Estates; Hemel Hempstead; On-site; GBP 60,000 - 85,000; Full time

Benefits offered by this job

Car allowance for field-based roles

Pension scheme

Vitality private healthcare

Perkbox discounts

Training and professional development

Job summary

Trinity Estates is seeking an Integration Support Accountant to lead the onboarding of new entities into the group finance ecosystem. The role blends hands-on accounting with systems mapping and project coordination, ensuring accurate data migration and robust controls.

You’ll work from home and our Hemel Hempstead head office, collaborating with Finance, Operations, IT and the Odevo Group to deliver timely integrations and value-adding improvements.

Qualifications

• Hands-on experience with data migration, systems change or finance transformation projects.
• Strong reconciliations background, including complex balance sheet reviews and variance analysis.
• Proficiency with Excel (lookups, pivots, error checks) and familiarity with ERP/finance systems.

Responsibilities

• Mapping ledgers, cost centres and reporting structures to group standards and preparing migration templates.
• Performing trial balance validations, balance sheet reconciliations and resolving variances pre- and post-migration.
• Posting journals for opening balances, cutover adjustments and inter-company eliminations.
• Coordinating with IT and Finance Systems to test, validate and sign off data loads.
• Creating and maintaining integration playbooks, process maps and control checklists.
• Partnering with Operations and external stakeholders to gather information, answer queries and track progress.

Skills

Data migration

Reconciliations

ERP/Finance systems

Excel

Tools

ERP/finance platforms

Job description

INTEGRATION SUPPORT ACCOUNTANT

• Trinity Estates
• Competitive
• Hybrid - Hemel Hempstead

Role Overview

You will play a pivotal role in bringing newly acquired or onboarded businesses into Trinity Estates’ finance ecosystem, ensuring accurate, timely and controlled integration of data, processes and reporting. Working in a hybrid way from home and our Head Office at Vantage Point, 23 Mark Road, Hemel Hempstead, Herts, HP2 7DN, you will collaborate across Finance, Operations, IT and the wider Odevo Group to make integrations smooth and value-adding.

With a blend of hands‑on technical accounting, systems mapping and project coordination, you will safeguard financial integrity through data migration, reconciliations and process alignment. You will be a calm, people‑focused partner to internal teams and external stakeholders, translating complex information into clear actions and embedding best‑practice controls as new entities transition into business‑as‑usual.

ROLE EXPECTATIONS

Most days you will be preparing, validating and reconciling financial data for migration, mapping chart of accounts and tax treatments, and aligning processes with Trinity Estates’ standards. You will troubleshoot issues quickly, document controls, support month‑end cutovers for new entities, and provide clear updates to stakeholders to keep timelines on track.

What Success Looks Like

• Integrations delivered on time with clean balance sheet reconciliations and zero unresolved data integrity issues.
• Clear, auditable migration documentation and process notes that enable seamless handover to BAU teams.
• Stakeholders feel informed and supported, with risks surfaced early and mitigated proactively.
• Month-end for onboarded entities closes accurately and to group timelines from the first full cycle.
• System mappings that are robust, scalable and aligned to group reporting requirements.
• Continuous improvement ideas implemented to simplify, automate or de‑risk future integrations.

How You’ll Spend Most Of Your Time

• Mapping ledgers, cost centres and reporting structures to group standards and preparing migration templates.
• Performing trial balance validations, balance sheet reconciliations and resolving variances pre‑and post‑migration.
• Posting journals for opening balances, cutover adjustments and inter‑company eliminations.
• Coordinating with IT and Finance Systems to test, validate and sign off data loads.
• Creating and maintaining integration playbooks, process maps and control checklists.
• Partnering with Operations and external stakeholders to gather information, answer queries and track progress.

Who This Role Is For

• You enjoy solving complex data and accounting puzzles and turning them into clear, actionable plans.
• You communicate confidently with finance and non‑finance colleagues, tailoring detail to your audience.
• You are highly organised, deadline‑driven and comfortable juggling multiple integration workstreams.
• You care about controls and accuracy, but remain pragmatic and solutions‑focused under pressure.
• You thrive in a collaborative environment and take pride in leaving processes better than you found them.

Experience That Helps

• Hands‑on experience with data migration, systems change or finance transformation projects.
• Strong reconciliations background, including complex balance sheet reviews and variance analysis.
• Proficiency with Excel (lookups, pivots, error checks) and familiarity with ERP/finance systems.
• Exposure to residential property management, service charge accounting or multi‑entity environments.
• Working with project plans, RAID logs or similar tools to manage timelines and risks.

What We Offer

• Competitive salary, aligned to experience
• Company car or car allowance for field‑based roles
• 25 days holiday plus bank holidays
• Pension scheme
• Vitality private healthcare
• Perkbox membership with discounts across retail, travel and entertainment
• Fully funded training and professional development, including paid study leave
• Employee referral scheme
• Annual salary review
• Free eye tests and Cycle to Work scheme
• Long service award
• Support for Army Reserve training

About Trinity Estates

Trinity Estates is a leading residential property management company and the flagship brand within the wider Trinity Property Group.

Managing a diverse portfolio across the UK, the business supports developments ranging from modern city apartments to large‑scale residential estates. Trinity Estates combines strong operational structure with a people‑focused approach, delivering a consistent and professional service at scale.

For employees, this means access to larger and more varied portfolios, clear processes, strong internal support and genuine opportunities for progression within a growing organisation.

As part of a wider group, Trinity Estates offers both stability and career development, making it an ideal environment for those looking to build and progress their career in property management.

How We Hire

• Initial conversation with our talent team
• Interview focused on your technical accounting capability, systems integration experience, approach to controls and problem‑solving, and how you collaborate with stakeholders to deliver projects on time.

We aim to complete the process within two to three weeks and communicate clearly throughout.

All applicants must be eligible to live and work in the UK. Documentary evidence of eligibility will be required.