BFSI Banking, Financial Services & Insurance →

Digital change, delivered for banks & insurers.

SustainSys delivers defined change workstreams for banks, brokers and (re)insurers — scoped, managed and delivered by our own consultants across digitalisation, modernisation and platform upgrades in capital markets and the London insurance market.

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London Market Insurance Murex & Capital Markets Regulatory Reporting Payments & ISO 20022 Data Migration & Cloud Policy Admin & Claims
13+
Years of regulated-industry delivery behind our senior consultants
6
Specialist BFSI practices, from front office to bordereaux
2
Sectors — banking and insurance — one delivery standard
UK
Suffolk-based, delivering at client sites across the UK and remotely
What we do

One partner, six BFSI practices.

We are a change delivery partner for regulated financial institutions. From a single defined workstream to a full delivery pod, SustainSys takes on the scope of work and retains full responsibility for the duties, functions and outcomes — supported by our own method, governance, quality assurance and line management.

6 PRACTICES · LIVEv1.0
●INSURANCE PRACTICE
Digital trading for the London Market

London Market transformation

The London Market is digitising fast — and the hardest part is combining technical delivery with fluency in the market’s language. Our analysts have worked across broker, coverholder and carrier processes: quote-bind-issue platforms, delegated authority operations and the compliance workflows that keep automated binding auditable.

Q
Quote–Bind–Issue platforms
Workflow design and delivery for coverholder & MGA digital trading
B
Delegated authority & bordereaux
Risk, premium & claims BDX — ingestion, validation, reconciliation
I
Broking platform integration
Connecting digital trading front-ends to core broking & PAS estates
C
Compliance workflows
Sanctions screening, referral triggers & exception management
Lloyd’sDelegated AuthorityBordereauxQuote-BindMGA
Speak to the insurance team →
●INSURANCE PRACTICE
From legacy PAS to cloud data platforms

Policy admin & claims data

Decades of policy and claims history sit in legacy policy administration systems — and every modernisation programme has to move it without losing a penny of reconciliation. We run the data workstreams: source-to-target mapping, data quality rules, migration reconciliation and the claims lifecycle knowledge (ECF, bureau vs non-bureau) that makes the numbers make sense.

S
Source-to-target mapping
Legacy PAS to cloud warehouses — specifications engineers can build from
Q
Data quality & reconciliation
Validation frameworks reconciled back to the source of record
C
Claims lifecycle expertise
ECF, bureau & non-bureau claims, outwards reinsurance reporting
U
UAT & cutover assurance
Reporting validated against source, breaks triaged to sign-off
PASSnowflakeS2TECFData Migration
Plan a data migration →
●INSURANCE PRACTICE
Exposure management, modernised

Catastrophe modelling & exposure

Replacing a legacy catastrophe modelling estate touches underwriting, exposure management and event response all at once. We deliver modern risk-platform implementations end-to-end — from model execution workflows and exposure data management to retiring the spreadsheet workarounds that grew around the old system.

M
Risk platform implementation
Model execution, event response & portfolio roll-up workflows
E
Exposure data management
EDM/RDM data flows across specialty lines of business
P
PAS-to-modelling data flows
Policy, exposure & premium feeding the modelling estate
X
EUC rationalisation
Embedded spreadsheet logic moved into governed platform capability
Cat ModellingEDM/RDMExposureSpecialty Lines
Discuss your modelling estate →
●BANKING PRACTICE
Front office to back office

Murex & treasury transformation

Murex programmes fail on domain knowledge, not technology. Our consultants have configured Murex across front-office and back-office modules on tier-one treasury migrations — workflows, datamart, GOM, rate curves, market data sourcing, pricing and valuation — and carried desks through benchmark transitions without breaking the risk numbers.

M
Mx upgrades & migrations
Mx2.11 → Mx3.1 delivery across FO, BO and datamart
T
Treasury & rates expertise
Curves, market data, e-tradepad, pricing & valuation setup
R
Benchmark transitions
LIBOR → RFR analysis across BSM, treasury & FO desks
D
Trade data mapping
Metadata, regulatory mappings & static data ownership
MurexMx3.1TreasuryRates & FX
Speak to the Murex team →
●BANKING PRACTICE
Regulator-ready, by design

Risk & regulatory reporting

Regulatory change is a permanent workstream. Our analysts have documented, designed and tested regulatory reporting from the trade outwards — EMIR and MiFID transaction reporting, SFTR, SA-CCR and FRTB risk data models — with the lineage and control documentation that survives an audit.

⚖
Transaction reporting
EMIR, MiFID & SFTR — requirements, mapping & testing
Δ
Risk data models
SA-CCR & FRTB input data, transformation logic & metadata
L
Data lineage & governance
End-to-end lineage from trading platforms to regulatory output
✓
Control frameworks
BASEL III, Lloyd’s reporting controls & audit-ready evidence
EMIRMiFIDSFTRSA-CCRFRTB
Talk regulatory change →
●BANKING PRACTICE
The rails everything runs on

Payments & market infrastructure

From SWIFT messaging to clearing-house integration, market infrastructure change is unforgiving of gaps in detail. Our consultants have implemented SWIFT message changes, tested ISO 20022 payment migrations and integrated clearing and settlement flows on production systems where a missed field is a settlement break.

S
SWIFT messaging
MT540–548, MT56X & corporate actions message implementation
P
ISO 20022 migration
MT → MX payment migration — functional testing to cutover
C
Clearing & settlement
Exchange & CCP integration, risk and credit limit configuration
K
Custody operations
Custody & clearing system change, EOD execution & support
SWIFTISO 20022ClearingCustody
Discuss payments change →
How we engage

Domain-ready delivery, without the ramp-up.

From a single defined workstream to a full delivery pod — SustainSys scopes, manages and delivers the work, and every consultant arrives already fluent in your market’s language.

01

Scope

We map your change portfolio — platforms, workstreams and target outcomes — and agree a written statement of work: deliverables, milestones and acceptance criteria.

Days, not weeks
02

Mobilise

We assign SustainSys consultants with genuine domain depth to the agreed scope. They are our employees — employment, right-to-work and compliance obligations sit with us.

Our employees
03

Deliver

Our consultants deliver the agreed scope alongside your programme and coordinate with your teams — while day-to-day direction, task allocation, supervision and appraisal remain with SustainSys.

Managed by us
04

Assure & report

Progress reported against the statement of work, deliverables accepted at milestones, and knowledge transferred to your permanent team at close.

Milestone-based

Planning your next BFSI change programme?

Tell us the platforms and the outcomes — we’ll propose a scope of work we have delivered before. No pitch deck, just a conversation.

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