Legacy systems
Mainframe, on-prem, AS/400
For organizations where downtime has a dollar figure
Enterprise Software Solutions to Transform Your Business
Enterprise software is rarely hard because the features are hard. It is hard because there are already eleven systems, four of them nobody wants to touch, two owned by teams that do not speak, and a compliance calendar that does not move.
We build for that reality. Incremental delivery, integration first, audit trails designed in rather than retrofitted, and an architecture your own engineers can still run after we leave.
ISO 27001:2013 certified • Clients including IBM, Intel, Epicor • SOX and HIPAA-aware builds • Runs in your cloud tenancy • 15 years delivering
ERP and CRM
SAP, NetSuite, Salesforce
Compliance
SOX, HIPAA, UK GDPR
Enterprise
platform
Unified services
One API surface
Governed data
One version of the number
Audit-ready
Evidence on demand
Built to survive contact with your existing estate
Legacy systems, ERP/CRM and compliance go into one integration layer. Unified services, governed data and audit-ready reporting come out.
Standard frameworks, documented decisions, no bespoke tooling only we understand.
1,700+
Projects delivered
400+
Clients served
34
Countries served
4.81/5
Average client rating
15+
Years of experience
ISO
27001:2013 certified
Proven & trusted
Trusted by teams at
Fifteen years, 1,700 projects, and delivery hours covering Pacific through GMT.
- ★ 4.8
- ★ 4.6
- ★ 4.7
- ★ 5.0
The problem
From a Fragmented Estate to Systems That Work Together
As an enterprise software development company, we are usually called in when the estate has outgrown the people who understand it.
01
Nobody has the full picture
Eleven systems, and no single person who knows how data moves between all of them. The architecture diagram is three years old and was aspirational when it was drawn.
02
The system nobody will touch
It works, it is critical, the person who wrote it left in 2016, and there are no tests. Every project routes around it, which makes the next project harder.
03
Approval cycles longer than sprints
Change advisory boards, security review, procurement. Real constraints, but if delivery is not planned around them, half the sprint is spent waiting rather than building.
04
Three versions of the same number
Finance, ops and the exec dashboard disagree, so leadership stops trusting all three and goes back to asking someone to build a spreadsheet.
05
Compliance arriving late
Audit requirements surface at UAT, and logging that should have been architectural gets bolted on in a fortnight. It passes, badly, and it costs you again next year.
06
Adoption treated as training
The system goes live, a training deck is circulated, and six weeks later half the team is back in the old spreadsheet. Adoption is a design problem, not a communications one.
None of these are solved by a bigger team or a better framework. They are solved by sequencing the work so the risky, boring parts happen first, which is what our architecture review is for.
Book an architecture review
The work
Comprehensive Enterprise Software Solutions and Services for Scalable Growth
Six engagement shapes. Most enterprise clients start with the first or the second and expand from there.
01
Architecture review and roadmap
A short, sharp engagement producing a current-state map, a target architecture and a sequenced roadmap with costs. Deliberately vendor-neutral: about a third of our reviews recommend work we would not be the ones to do.
What you get
- Current-state system and data-flow map
- Target architecture with trade-offs stated
- Sequenced roadmap with indicative costs
02
Legacy modernization
Moving critical systems onto something maintainable without a big-bang cutover. Strangler pattern, old and new running side by side, traffic moved a slice at a time, and a rollback that has actually been tested.
What you get
- Incremental migration plan
- Data reconciliation at every step
- Tested rollback, not a theoretical one
03
Integration and API platform
One API surface over a messy estate, with contracts, versioning, rate limiting and observability. The least glamorous line in any enterprise proposal and reliably the highest return.
What you get
- Versioned API contracts
- Central observability and tracing
- Idempotency and replay handling
04
Data platform and reporting
Getting to one version of each number. Warehouse or lakehouse, defined ownership per metric, lineage you can follow, and reporting that survives someone asking where the figure came from.
What you get
- Metric definitions with named owners
- Column-level lineage
- Reconciliation against source systems
05
Enterprise AI enablement
Retrieval over your own document estate with permissions intact, plus agents for the high-volume internal workflows. Governed, logged and evaluated, because the risk profile in an enterprise is not the same as in a startup.
What you get
- Permissions inherited from Entra ID or Okta
- Answers cited to source documents
- Evaluation set built from your history
06
Security and compliance engineering
Audit logging, data residency, access review, evidence generation. Designed in from the first sprint, which costs less than retrofitting it and passes more cleanly when the auditor arrives.
What you get
- Immutable audit trail
- Region-pinned data residency
- Auditor evidence pack generated, not assembled
-
01
Consumers
- Internal apps
- Customer portal
- Partners
- Mobile
- BI tools
-
02
API and experience
- Versioned REST
- GraphQL
- Rate limiting
- SSO
- Observability
-
03
Governed services
- Domain services
- Event bus
- AI retrieval
- Audit trail
- Policy engine
-
04
Existing estate
- SAP
- Salesforce
- NetSuite
- Legacy / AS-400
- Warehouse
- EDI
Enterprise AI
Enterprise AI, without the governance gap
Most enterprise AI pilots stall in the same place: they work, and then legal, security or the data protection officer asks a question the pilot cannot answer. We build for that question first.
- Permissions that actually hold An assistant that surfaces a document to someone who should not see it is a data breach, not a bug. Retrieval respects your existing identity provider at query time rather than filtering after the fact, which is the failure mode most quick pilots ship with.
- Answers you can trace Every response cites the source document and version. When someone challenges an answer six months later, you can show where it came from, which is the difference between a useful system and one legal quietly switches off.
- Evaluated before it ships We build an evaluation set from your own historical cases and score against it, so accuracy is a number in a report rather than an impression from a demo. Drift gets caught by monitoring rather than by a customer complaint.
- Model-agnostic by design An abstraction layer between your workflows and the model. Pricing and capability shift every few months, and a procurement cycle that locks you to one vendor for three years will cost more than it saves.
If your organization has an AI policy, bring it to the architecture review. If it does not, we will help you draft the technical half of one. Either way it is cheaper to design against it now than to retrofit after a pilot has already been promised to the board.
Industries
Industries We Serve
We partner with diverse industries to provide scalable software solutions that deliver measurable outcomes.
01
Healthcare
From HIPAA-compliant patient portals to telemedicine platforms and EHR integration, we build healthcare software that improves care delivery and keeps patient data safe. Privacy, security and usability are designed in from the start.
02
Finance
Security and compliance are non-negotiable here. We build fintech products with KYC, AML and regulatory safeguards built in, while keeping payments and account journeys fast and straightforward for the end user.
03
E-Commerce
We create scalable commerce platforms that turn visitors into repeat buyers. Custom storefronts, secure payment gateways, inventory and returns handling, all built to hold up through peak season rather than only in January.
04
Education
Whether it is an LMS, a virtual classroom or interactive learning tools, we build platforms that keep learners engaged. SCORM-compliant content, gamified modules and real-time performance tracking are all covered.
05
Media & Entertainment
We build for video streaming, audio platforms, AR and VR content and mobile games, with the performance and scalability that immersive, high-traffic experiences demand.
06
Travel and Recreation
Booking engines, guest apps and attraction platforms for hotels, tours and recreation operators. Peak-season traffic, live inventory and multi-currency checkout are designed in from the start.
Our process
How We Work
Four stages, with the cheapest one first. If discovery says the project should not go ahead, you hear it in week one rather than month six.
01
Discover & Align
We begin by evaluating your workflows, existing systems and business objectives to identify the gaps that actually cost you time. Clear goals, risk mitigation and measurable benchmarks are agreed before any implementation begins.
02
Design & Architect
We design secure, scalable architecture aligned to your operational and compliance requirements. The focus stays on integration contracts, data modelling, security posture and the non-functional targets we will be held to.
03
Build & Integrate
Delivery runs in two-week sprints with a working demo at the end of each, integrated with your existing applications rather than beside them. You get a staging environment from the first sprint.
04
Optimize & Scale
After launch we monitor performance, reliability, cost and security posture, then refine to improve efficiency and long-term agility. Most clients expand scope during this phase rather than before it.
Sequencing that keeps programs on schedule
- 01
Architecture review
Weeks 1–3
- 02
Foundation
Weeks 4–10
- 03
Incremental delivery
Months 3–9
- 04
Handover & run
Ongoing
Integration, identity and observability come first. It feels slow for six weeks, then stops feeling slow.
Pricing
Pricing & Engagement Models
Transparent published rates in USD. Every engagement includes a technical project manager, QA involvement and DevOps support at no extra charge.
Most chosen
Get In Touch
01
Enterprise Software Development
Core systems built for a mixed estate, with integration, identity and observability sequenced before feature delivery.
Hourly
$22/Hr
starting from
Part Time
$1,400
80 hours / mo
Full Time
$2,800
160 hours / mo
02
Systems Integration & API Platform
One API surface over a messy estate, with versioned contracts, rate limiting, idempotent writes and central observability.
Hourly
$18/Hr
starting from
Part Time
$1,200
80 hours / mo
Full Time
$1,920
160 hours / mo
03
Enterprise AI Enablement
Retrieval over your document estate with permissions applied at query time, answers cited to source, and evaluation before it ships.
Hourly
$22/Hr
starting from
Part Time
$1,400
80 hours / mo
Full Time
$2,800
160 hours / mo
Rates apply to US, UK and EU clients. Fixed-scope projects are quoted after discovery, when scope is understood on both sides.
Proof
Featured Case Studies
Discover how we have turned client challenges into working systems, and the measurable outcomes that followed.
GSK
Global biopharma leader GSK partnered with Digital Aptech to develop specialized software for the submission of clinical trial data for Tykerb, a breast cancer drug.
Read the case study
Helllo
Helllo came to us with an all-in-one app concept. We built a platform combining entertainment, e-commerce and social features for both Android and iOS users.
Read the case study
Kolkata Police
An umbrella platform where Kolkata Police personnel access crime and criminal records efficiently, with permissions granted according to designation.
Read the case studyCondosHQ
A Canada-based property listing platform for home buyers, with the functionality to find and compare property types across Greater Toronto.
Read the case study
Gateway Stream
What started as a hotel listing platform is now one of our longest-running clients, spanning e-commerce, hotel and event booking, food delivery and transport.
Read the case study
ISUZU
For ISUZU South Africa we rebuilt the website around a single coherent user journey, turning it into a highly functional experience that showcases the range clearly.
Read the case study
1700+
Projects delivered globally
400+
Clients served
34
Countries served
4.81
Average client rating
Fit
Why Choose Digital Aptech's Enterprise Software Development Services
Digital Aptech delivers governed, incrementally-released enterprise systems designed to be handed over, not held hostage.
- Architecture review before any build commitment
- Governed AI with permissions and audit trails intact
- Runs inside your own cloud tenancy where policy requires
The toolkit
Our Technology Expertise
Chosen per project rather than per habit. If your team already runs a stack confidently, that usually beats anything we would pick fresh.
01
Programming Languages:
JavaC#
Python
JavaScriptGo
ABAP
02
Frameworks:
Spring Boot
Django
Node.js
ReactAngular
03
Enterprise Platforms:
Salesforce
NetSuite
Dynamics 365
- Epicor
ServiceNow
04
Cloud Platforms:
AWS
Azure
Google Cloud- Private cloud
- On-premise
05
Databases:
Oracle
PostgreSQL
SQL Server
Snowflake
Databricks
06
DevOps & Security:
KubernetesTerraform
Vault
Okta
Kafka
Why Digital Aptech
Why Choose Digital Aptech?
Here is what differentiates Digital Aptech in delivering enterprise software development for US and UK organizations.
01
Architecture Before Implementation
A short, vendor-neutral review produces a current-state map, a target architecture and a costed roadmap. About a third recommend work we would not be the ones to deliver.
02
Compliance Engineered In
SOX, HIPAA and UK GDPR requirements shape the architecture from the first sprint. Audit evidence is generated continuously rather than assembled the fortnight before a review.
03
Incremental, Never Big-Bang
We use the strangler pattern with old and new running side by side and a rollback that has actually been tested. We decline big-bang replacement work.
04
Handover Is a Phase
Architecture decision records, runbooks and a period where your engineers drive with ours on call, written into the plan from day one.
05
Proven Engineering Track Record
Backed by 1,700+ successful technology engagements and a 4.81 out of 5 client satisfaction rating, Digital Aptech delivers consistently across industries and project sizes.
06
Global, Multi-Industry Delivery
Organizations across 34+ countries and 22+ industries rely on Digital Aptech, with a US office in Oakland, California and delivery hours covering Pacific through GMT.
07
Structured, Risk-Controlled Implementation
Defined roadmaps, workflow assessments and phased delivery reduce downtime, remove bottlenecks and keep production environments stable through change.
08
Recognized for Technical Excellence
Forbes India Select 200, Clutch 1000, GoodFirms and multiple global industry awards recognize consistent delivery standards and service reliability.
Clients
What our clients have to say about us
Choosing the right development partner makes all the difference.
It was an excellent experience in every way. Moreover, the end product they delivered surpassed our expectations. Overall, the project was successful.
Steve McChesneyPresident, Walking Tours Inc.
Digital Aptech works fast and implements features without the client's request. The team has been friendly, responsive, and easy to work with and consistently addressed the client's questions and concerns.
Julian HooverOwner, Chord Sheet Pro
I have known and worked with the guys at Digital Aptech for about 10 years now and have always found them to be flexible and responsive.
Alex CliffordDirector, Logic Digital
Frequently Asked Questions
-
A three-week architecture review is $9,500 or about £7,500, credited against a build if you proceed. A dedicated squad of four to six starts around $17,600 a month, roughly £14,000. Full programs typically run $150,000 to $600,000 across nine to eighteen months.
-
No, and we will decline the work if that is the requirement. Big-bang cutovers fail often enough that we will not put our name on one. We use the strangler pattern instead: new alongside old, traffic moved a slice at a time, rollback tested at each step.
-
Yes. Development, staging and production can all sit inside your AWS, Azure or GCP account under your policies, logging and data residency rules. For regulated clients this is usually the default rather than the exception.
-
They shape the architecture from the first sprint rather than being retrofitted before UAT. That means immutable audit logging, region-pinned data residency, access review workflows and an evidence pack that is generated rather than assembled the week before the auditor arrives.
-
Frequently. We are often brought in for a specific capability alongside a larger SI, or to do an independent architecture review of work already in flight. We will tell you honestly where we think the incumbent has it right.
-
Permissions inherited from your identity provider and applied at query time, answers cited to source documents and versions, an evaluation set built from your own history, and full logging of inputs and outputs. Bring your AI policy to the architecture review.
-
You keep it, and we say so. About a third of our architecture reviews recommend work we would not be the ones to deliver, including buying a product instead of building one. The review is priced to stand alone for exactly that reason.
-
The integration layer, identity and observability come first, so meaningful working software usually lands around week eight to ten. That is deliberate. Front-loading features and leaving integration until last is the most common way these programs overrun.
-
Yes, under a managed capability arrangement from around $6,800 a month with an agreed SLA. Or we hand over completely to your team, which we plan for from day one either way.
-
You do, in writing in the MSA. Standard frameworks, no bespoke tooling only we understand, and a handover designed so another firm could pick it up. We build so you can leave.
-
We map them into the delivery plan during the architecture review. Sprints are planned around approval windows rather than colliding with them, which is a large part of why enterprise sprint velocity looks poor on paper.
-
Most of our enterprise clients are between 200 and 5,000 people, though we have delivered for considerably larger. Below about 100 people, the custom software engagement model is usually a better fit and cheaper.
Next step
Your next step toward success starts here
Bring us the problem, not a finished spec. We will tell you honestly what it takes to build, what it costs, and whether something simpler would do the job.
Connect with Us. We reply within one business day.
- 01Free expert consultation
A feasibility review and an actionable plan at no cost, whether or not you go ahead with us.
- 02Complimentary technical project manager
Included on every engagement, so delivery does not become somebody's second job.
15+Years of experience