We replace Salesforce-based operational platforms with purpose-built systems that make your business logic visible, testable, and fast to change. Every record preserved. Every relationship intact.
Before
Flows
Apex
Batch
Formulas
After
PostgreSQL
FastAPI
React
Temporal
98% tested
37 ADRs
509K
records migrated
1M+
lines of SF export
0
data loss
The Problem
You’re running your core operations on it — compliance tracking, vendor management, multi-party workflows, document processing — and the cracks are showing.
Your SF admin says a straightforward change will take three months because it touches Flows, Apex, formula fields, and batch jobs that nobody fully understands. Every enhancement is an archaeology project.
Compliance rules, approval routing, and status calculations are scattered across formula fields, Flows, Apex triggers, and scheduled batch jobs with hidden dependencies and race conditions. When something computes wrong, nobody can explain why.
Per-seat pricing for an operational tool means every new hire, every vendor portal user, every external partner is a cost event. You’re paying CRM rates for people who never touch a pipeline.
Experience Cloud is expensive, limited, and awkward for vendors and partners who need to submit documents, check compliance status, or complete onboarding workflows. You know it. They know it.
Why Heavy Chain
On our last engagement, we replaced a Salesforce operational platform for a B2B company managing industrial vendor compliance. The org had become the most complex system in the building — and nobody could explain how it worked.
43
Custom objects replaced
608
Business logic components
509K
Records migrated
1M+
Lines of SF export analyzed
A 4,096-line Apex class. 25 obsolete Flows still deployed. Compliance logic scattered across six components with race conditions between them. A junction table with 2 records while 9,518 relationships hid in a lookup field on Account.
A 12-bounded-context architecture on PostgreSQL, FastAPI, React, and Temporal. The compliance engine became a single deterministic evaluator. 4,000+ backend tests at 98% coverage. 37 ADRs so the next team never has to reverse-engineer what we reverse-engineered.
Our Process
Phase 01
2–3 weeks, fixed price
We get read-only access to your Salesforce org and produce a complete component inventory, data model map, and business logic dependency graph for your critical processes. This usually reveals things nobody knew: dead Flows still deployed (we found 25 of 37 were obsolete), formula fields masquerading as business logic, batch jobs with undocumented side effects.
You also get a cost comparison — current SF total cost of ownership versus a purpose-built replacement. The audit is valuable even if you never migrate.
Phase 02
3–6 months, fixed scope
We design the domain model, build the replacement platform, and construct a validated ETL pipeline — all in defined phases with concrete milestones. The staging-first architecture means Salesforce keeps running during development. The cutover is a discrete event: dry-run, validate, switch.
You’re not paying for two systems for 18 months. Each migration wave is independently testable, idempotent, and reversible. Post-migration validation includes row counts, foreign key integrity checks, and business rule assertions compared against Salesforce’s own computed values.
Phase 03
Ongoing
The whole point of leaving Salesforce is that changes should be fast. A monthly retainer means you can request features without procurement cycles. We maintain deep context on the codebase, so changes are faster and safer than onboarding a new team.
After 12 months, you can bring development in-house — the ADRs, test suite, and documentation are designed for handoff. We’ll say that upfront because it’s true.
Results
608
SF components replaced
Flows, Apex classes, triggers, batch jobs, formula fields
509K
Records migrated
Across 8 waves with zero data loss
98%
Test coverage
4,000+ backend tests from day one
1M+
Lines of SF export analyzed
Full org archaeology in ~1 month
37
Architecture Decision Records
Maintainable by any engineering team
12
Bounded contexts
Replacing one polymorphic Account object
If you’re running operations on Salesforce and it’s costing you speed, money, or sanity, let’s talk. The 30-minute assessment call is straightforward: you describe what Salesforce is doing for your business, we tell you honestly whether migration makes sense or whether you should just clean up your org.
No deck. No discovery phase disguised as a sales cycle. Just a direct conversation with the engineer who’ll do the work.