Blockchain development. Sorted.

Scrums.com provides end-to-end blockchain development services: smart contracts, DeFi protocols, enterprise DLT, asset tokenisation and the wallet apps that sit on top, with security audits planned into the schedule.

Through the Software Factory Delivery Plan, you get one team, one predictable monthly price and one prioritised backlog. Add custom software, AI, backend, web, mobile, data or DevOps and cloud work to the same backlog whenever you need it.

Now $4,500£3,750R79,000/ monthSave $3,500£2,950R61,000/moStart your Delivery Plan →
48 hours to first codeDelivering since 2012Thousands of companies served
“Their work has been professional, creative, on-budget and on-time. We have come to see them as a strategic partner.”
— Steven Sidley, CTO, Project UBU

Use your plan for blockchain development.

Delivery Plan · Factory
Your backlog. Delivered.
One plan. Any software development.
Now $4,500£3,750R79,000/ monthWas $8,000£6,700R140,000
Save $3,500£2,950R61,000/moOne active workstream
14DAYSFirst deliverable in 14 days or your first month is free.
Senior engineering team
Managed security
Expert project manager
Unlimited backlog
100% your code and IP
Cancel anytime
Start your Delivery Plan
Onboarding starts at checkout · Billed monthly, excl. VAT

Trusted engineering partner to

How your Software Factory Delivery Plan works

How the blockchain development process works

  1. 01SubscribeCheck out and onboarding starts immediately.
  2. 02Queue your blockchain workPick scopes or describe your own.
  3. 03We start coding in 48 hoursAccess to your repos, chains and CI.
  4. 04Test, audit, deployTrack every contract on the Scrums.com Platform.
The Software Factory

See the Software Factory at work

Scrums.com Platform

Track every contract, audit and release on the Scrums.com Platform

We turn your goals into clear tasks and agree milestones before work starts. Follow progress from research and prototypes through to production, with every handoff visible. As each task ships, Scrums.com moves to the next priority.

Scrums.com Platform / delivery board
Requirement8
SC-118est 40hrs
Transfer restrictions for accredited investors
Blockchain5 pts
API-074est 32hrs
Event bridge from contract events to the ERP
Backend5 pts
QA-231est 24hrs
Echidna fuzzing on the settlement contract
QA3 pts
OPS-140est 24hrs
Multi-region validator nodes
DevOps3 pts
Delivering1
SC-117day 3/6
Upgradeable proxy for the token contractBlockchain
  • Contract written and tested
  • Fuzz and fork tests green
  • Code review approved
  • Deployed to testnet
Smart contractsPR #964
Gate
Live38
SC-116✓ live
KYC whitelist contract
Blockchain · just now
MOB-052✓ live
Wallet sign-in with WalletConnect
Mobile · 3d ago
API-071✓ live
The Graph indexer for transfer events
Backend · 5d ago
SC-112✓ live
Chainlink price feed integration
Blockchain · 9d ago
Illustrative demo with sample data. On the Scrums.com Platform, the board shows your own goals, tasks and releases.
Scope and capacity

What one workstream delivers, for blockchain or any software

Your backlog can hold any number of requests, but the team delivers them one workstream at a time. A workstream is one managed team working on your highest-priority request until it is live, then starting the next. More requests mean more months, not faster delivery. Work is scoped and delivered within your plan’s capacity. Priorities can change; additional parallel workstreams require more capacity. The same plan covers mobile, web, backend, AI, data and QA work, so all of it can share one backlog.

Active at once
One request
DeFi protocol
6 to 10 months
Enterprise DLT network
9 to 14 months
Contracts and code owned by
You

Example: a DeFi protocol on one workstream

Illustrative
  1. Months 1 to 2Architecture first: is a ledger the right tool, which chain, and what lives on-chain versus off-chain. Then the core contracts on the OpenZeppelin baseline, with unit and fork tests.
  2. Months 3 to 6Protocol logic and integrations: oracles, indexers, the wallet and dApp frontend, and gas optimisation. Fuzz testing and formal verification of the critical invariants.
  3. Months 7 to 10The independent security audit, findings fixed, testnet soak, then mainnet deployment with monitoring and an emergency pause path.

A sample DeFi programme. It matches the 6 to 10 months a DeFi protocol on an EVM chain typically takes, including the audit. Onboarding starts immediately after checkout, and your delivery owner scopes your own plan with you.

What affects the number of months

  • Chain choicePermissioned networks, public EVM chains, Layer 2s and Solana each carry different build, test and deployment work.
  • On-chain scopeOnly what must be tamper-proof goes on-chain. More on-chain logic means more audit surface and more gas work.
  • Security auditAn independent audit is planned into the schedule, with time to fix the findings before mainnet.
  • RegulationMiCA, securities law and the FATF Travel Rule add compliance controls that are designed in from day one.
  • IntegrationsCore banking, ERP, custodians and KYC providers each add event-bridge and reconciliation work.
  • Review and approvalsHow quickly your team agrees acceptance criteria and approves deployments to mainnet.
See the scopes you can queue →
Capabilities

Blockchain development services: smart contracts, DeFi, enterprise DLT, tokenisation, identity and wallets.

Smart contract development and security

Solidity · Rust · Foundry · OpenZeppelin

Smart contracts execute on every node, so a bug is permanent. Contracts are built on the audited OpenZeppelin baseline, tested with unit, fork and fuzz tests, formally verified where the invariants are critical, and audited by a specialist firm before any production deployment.

When it fitsYou need contracts that hold real value, and a deployed bug would be expensive.
Trade-offsAn upgradeable proxy lets you fix bugs later, but it adds its own complexity and risk. The choice is made at design time.
How the plan covers it
Solidity for EVM chains, Rust for Solana programmes
Hardhat or Foundry toolchains and deployment pipelines
Echidna fuzzing and Certora formal verification
Audit timelines planned into the schedule
Hire blockchain developers →
What's included in blockchain development

Contracts, protocols, integrations and audits. Managed together.

Every Delivery Plan · Core comes with the full blockchain team and the tooling around it: architecture, smart contract engineering, testing and audit preparation, integration and node infrastructure, run by one delivery owner.

A team meets around an office table
Delivery managementOne accountable delivery owner.Milestones agreed before work begins.
01Architecture and chain choiceWhether a ledger fits the problem, permissioned or public, and what goes on-chain versus off-chain
02Smart contractsSolidity, Rust and Go chaincode on the OpenZeppelin baseline
03Testing and verificationUnit, integration, fork and fuzz tests, and formal verification of critical invariants
04Audit preparationAudit timelines in the schedule and findings fixed before mainnet
05Oracles and indexingChainlink for off-chain data and The Graph for queryable on-chain events
06Enterprise integrationEvent bridges to core banking, ERP and CRM, with reorg-safe confirmations
07Node infrastructureHosted or self-run nodes, with multi-region validators where uptime needs it
08Compliance controlsMiCA, securities transfer restrictions, KYC and the FATF Travel Rule, designed in
10Contract and code ownershipAll contracts, deployment scripts and application code are yours from day one.
100%

A mainnet deployment is not the finish line.

MonitoringContract events, node health and bridge activity watched in production.
Incident responseEmergency pause paths and runbooks ready before they are needed.
UpgradesProxy upgrades and migrations planned, tested and audited like the first release.
Quarterly reviewsPlatform reviews and roadmap updates every quarter, with knowledge transfer to your team.
Runs on the Scrums.com platform

Every Delivery Plan runs on the Enterprise AI Platform for software engineering.

Your team, its AI agents and your delivery data sit on one governed platform. That is what powers your delivery board, the code-review agents, and the talent bench behind your plan.

What your blockchain team draws on, already part of your planBrowse the full AI catalog →
Engineering talentTalent

Blockchain engineers and teams

Smart contract, DeFi, zkEVM and DLT engineers from the Scrums.com bench, matched to your chain and domain.

AI Catalog304 items

Agents, MCPs and models for your build

The code-review and release agents that run alongside your team, plus the MCP servers they use.

AI infrastructure512 items

Infrastructure for your nodes and environments

Cloud, container and observability infrastructure, deployable from the catalog with your $500 first-month credits.

Compare

One blockchain hire covers one role. The plan covers the whole team.

A blockchain product needs contracts, backend integration, a frontend, testing and node infrastructure. Hiring covers them one role at a time. The Delivery Plan covers them in one monthly price.

Compare
RecommendedScrums.com Delivery Plan · Core
In-house blockchain engineer
Traditional blockchain agency
Roles covered
Smart contracts, backend, frontend, QA and nodes
One role per hire
Depends on the agency bench
Time to start
48 hours to first code
A hiring cycle first
Proposal and contract cycle first
How you pay
Was $8,000£6,700R140,000 now $4,500£3,750R79,000 / month, one plan price
Salary, benefits and recruiting fees
Project quotes and change requests
Who runs delivery
One accountable delivery owner
You manage the work
The agency project manager
Visibility
Every contract, test run and release on the Scrums.com Platform
Your own tooling
Status reports by email
Basis: the figure that the current Scrums.com custom software development page states against US and UK agencies. Blockchain work runs on the same plan. It is not a quote for your scope.
What you get

Why companies choose a managed team for blockchain development

01

An honest first question

If a conventional database with good access control solves the problem, we say so before the build starts.

02

Security planned in

Fuzzing, formal verification and the independent audit are in the schedule, not a gate before launch.

03

One monthly price

One plan price for contracts, integration and app work. Your scope sets the number of months.

04

Public or permissioned

Ethereum, Layer 2s, Solana, Hyperledger Fabric and Corda, chosen on throughput, privacy and regulation.

05

Built for regulated finance

Teams that have worked within payments and banking compliance, from national payment systems to digital investment apps.

06

Delivered since 2018

Scrums.com built Project UBU, a blockchain token platform and a 2018 AppsAfrica Blockchain Award finalist.

Customers

Blockchain and FinTech case studies

Teams are matched to your domain, built for tokens, payments, FinTech and regulated platforms.

Project UBU blockchain token wallet app, built by Scrums.com
Featured blockchain case study

Project UBU: a blockchain token economy in a mobile app and PWA

Challenge
Issue a free universal basic income token to registered citizens every day, and let them spend it with vetted vendors near them.
Platforms and technologies
React and React Native, GraphCool and Prisma, a Sequence blockchain service, hosted on AWS. Android app plus a PWA for iOS users.
Work delivered
The MVP mobile app and PWA, then maintenance and feature upgrades, with a team that grew to four senior and mid-level developers.
Result
2,100 downloads in two months of beta, over 19,000 UBU tokens in circulation and up to 700,000 transactions in the first year.
Read the Project UBU case study →
Scopes

Scopes you can queue for a blockchain build

One Delivery Plan · Core covers your development priorities across services. Start with the discovery and the contracts, then queue the API, wallet, app and security work on the same backlog, or describe your own.

Blockchain build scopes
0 scopes on your backlog · one active workstream at a timeStart your plan with this backlog →
DiscoverySC-01

Product Discovery Sprint

Lay the foundation for successful projects with structured workshops designed to align stakeholders, define goals, and create a clear product roadmap in as little as 1 week.

Blockchain ScopeView scope
PaymentsSC-02

Digital Wallet Integration

Integrate a defined wallet or tokenized payment capability — Apple Pay, Google Pay, or a regional wallet — into an existing customer payment journey.

Blockchain ScopeView scope
PaymentsSC-03

Accounting Platform Integration

Automate invoices, payments, customers, journals, or reconciliation data between your systems and an accounting platform. Finish state: the books updating themselves for the defined flows.

Blockchain ScopeView scope
BackendSC-04

REST API Design & Build

Design and implement a versioned production REST API for a defined domain or product capability. Finish state: a documented, secured, versioned API serving real clients.

Blockchain ScopeView scope
BackendSC-05

ERP Integration Package

Connect an application to an ERP for defined master-data, order, inventory, finance, or fulfillment flows. Finish state: the defined flows exchanging data reliably, with the ERP respected as system of record.

Blockchain ScopeView scope
AppsSC-06

React Native App Build

Build one React Native codebase targeting iOS and Android for a defined production application. Ends with both apps live from a single codebase you own.

Blockchain ScopeView scope
SecuritySC-07

API Penetration Test

Test a defined API surface for authorization, input, data-exposure, business-logic, and protocol vulnerabilities.

Blockchain ScopeView scope
ReliabilitySC-08

High-Availability Architecture Upgrade

Remove critical single points of failure and the highest-impact failure modes standing between a defined system and its availability target.

Blockchain ScopeView scope
The plan in full

Blockchain development services pricing

Core costs Was $8,000£6,700R140,000 now $4,500£3,750R79,000/month for one active workstream. Your product’s scope determines the delivery schedule and total cost. You can use the same subscription for other development priorities.

Best for companies building smart contracts, DeFi protocols, tokenisation platforms or permissioned ledgers that must meet production and compliance standards.

Delivery Plan · Factory

One plan for your software backlog.

Now $4,500£3,750R79,000/ monthWas $8,000£6,700R140,000
One active workstream. Managed delivery.
Coverage
Start your Delivery Plan →
Billed monthly · excl. VAT/sales tax · onboarding starts immediately after checkout
Included every month
Delivery owner. One accountable owner runs your smart contract, backend and app engineers.
One backlog across your development priorities. You set the order; requests are scoped and delivered one workstream at a time.
Visibility. Milestones agreed up front. Contracts, test runs and releases live on the Scrums.com Platform.
Ownership. Contracts, deployment scripts, code and data are yours from day one, with handover included.

Work is scoped and delivered within your plan’s capacity. Priorities can change; additional parallel workstreams require more capacity.

First-month benefits
14DAYS
First-delivery guaranteeThe team builds your first agreed deliverable within 14 days of scope and access being confirmed, or your first month is free.
$500 in AI infrastructure catalog creditsMONTH 1
Annual-plan benefits$10,000 in specialist services
Technical Assessment & Delivery RoadmapWe review your systems, rank your priorities and agree the first deliverable.
CI/CD & Quality Pipeline SetupYour pipelines, environments and quality checks, set up and handed over to you.
You buy monthly delivery capacity, not a fixed project price. Third-party security audits, gas fees, node hosting and other third-party services are billed separately. Full Delivery Plan coverage and terms →
Need more workstreams or have complex requirements? Talk to Sales →
Day 0Scope and access confirmedOnboarding starts at checkout. You confirm scope and share repos, chain accounts and CI.
Within 48 hoursCoding startsThe team starts work in your repositories.
Within 14 daysFirst deliverable builtFor example a tested core contract deployed to a testnet.
If it does not shipYour first month is freeYou do not pay for month one.
The first deliverable is agreed in writing before the clock starts. The clock starts when scope and access are confirmed. Applies to the first deliverable on a new plan.Read the full Delivery Plan terms →
FAQ

Blockchain development questions, answered

Still deciding? Talk to sales and get a scoped answer for your product.

Delivery Plan · Core costs Was $8,000£6,700R140,000 now $4,500£3,750R79,000 a month, excluding VAT or sales tax. That buys one active workstream with a managed blockchain team. It is monthly delivery capacity, not a fixed price for a complete product, so your scope sets the number of months. Third-party audits, gas fees and node hosting are billed separately.

Want the detail? Read the AI development documentation →

IntroducingDelivery Plans · humans + agents

The Software Factory

We’ve spent 15 years building software for some of the world’s biggest brands. Now we’re upgrading how you buy it.

  1. Backlog
  2. Scope
  3. Build
  4. Test
  5. Ship