Frontend dApp Development
We build production React, Next.js, and Vue interfaces with type-safe contract bindings, optimistic UI patterns, and graceful handling of every wallet, chain, and signature edge case.
Learn moreOur Services
dApp Development & Engineering
Production-grade decentralised application interfaces and backends - engineered for wallet edge cases, chain reorgs, and the operational realities of multi-chain UX.
220+
Production dApps shipped across networks
12M+
Wallet sessions served across deployments
35+
Chains and L2s integrated in production
8+
Years of dApp engineering experience
Our services
dApp Development Services
Nine dApp engineering disciplines - from frontend architecture and wallet integration to indexing, gasless transactions, and account abstraction - each scoped independently and engineered to enterprise production standards.
Next step
Ready to scope your dApp programme?
Share your contracts, target chains, and product timeline - we respond within one business day with a scoped recommendation, not a sales pitch.
Delivery scope
Six deliverables, zero ambiguity.
Every engagement produces a defined artifact set. Scope is agreed upfront; nothing is a billable surprise.
01
Frontend architecture & framework selection
React, Next.js, or Vue choice with state management, type-safe contract bindings, and rendering strategy chosen against your performance and SEO requirements.
02
Wallet & authentication strategy
Wallet provider selection, signature-based auth flow, session management, and account abstraction strategy defined before component code is written.
03
RPC & indexing infrastructure
Multi-provider RPC failover, subgraph or custom indexer deployment, and caching strategy specified for chain reliability and query performance.
04
Transaction UX patterns
Pending state design, optimistic updates, reorg handling, and failure recovery flows documented and tested across major wallet providers.
05
Deployment & observability pipelines
CI/CD with reproducible builds, performance budgets, and dashboards for client-side metrics, RPC reliability, and transaction success rates.
06
Operational runbooks & incident playbooks
Documented procedures for RPC outages, wallet provider failures, contract upgrades, and indexing reorgs - handed to your ops team, not kept in our heads.
Tooling stack
Our dApp Development Technology Stack
Chosen for production reliability, ecosystem maturity, and operational track record across dApp launches.
Default stack
TypeScript · Next.js · viem · wagmi · The Graph
Frontend frameworks & languages
TypeScript
Type-safe Web3
React
Component layer
Next.js
SSR & app router
Vue
Alternative framework
Svelte
Reactive UI
Tailwind CSS
Utility styling
Solid
High-performance UI
Remix
Full-stack React
Astro
Content-heavy dApps
Vite
Build tooling
Web3 libraries & SDKs
viem
Type-safe Ethereum
wagmi
React hooks for EVM
ethers.js
Ethereum library
web3.js
Legacy ETH library
RainbowKit
Wallet UI
WalletConnect
Wallet protocol
Web3Modal
Wallet picker
Privy
Embedded wallets
Dynamic
Auth & wallets
@solana/web3.js
Solana SDK
Backend & indexing
Node.js
Backend runtime
Go
High-performance backend
The Graph
Subgraph indexing
Goldsky
Custom indexers
Ponder
TypeScript indexers
PostgreSQL
Relational data
Redis
Caching & queues
Hasura
GraphQL gateway
BullMQ
Job processing
Apollo
GraphQL client/server
RPC & infrastructure
Alchemy
RPC infrastructure
Infura
Node API
QuickNode
Dedicated nodes
Tenderly
Debug & monitor
Sentry
Error tracking
Datadog
Observability
Vercel
Frontend hosting
AWS
Cloud deployment
Cloudflare
Edge & DDoS
Pimlico
ERC-4337 infra
Trust & diligence
Audit Partner Ecosystem
We coordinate frontend security review, signature flow audits, and infrastructure penetration testing with recognised firms your stakeholders already trust - because dApp security extends beyond the contracts your auditors reviewed.
Third-party names and marks belong to their respective owners.
Partner with us
Built for Teams Where the dApp Is the Product.
Smart contracts are infrastructure. The dApp is what users actually touch - and what they remember when something goes wrong. A failed transaction, a stuck wallet, a chain reorg that resets state mid-checkout - these are the moments that drive churn. We build for teams who treat the dApp as a production product: with wallet edge case coverage, RPC failover, observable transaction flows, and incident playbooks from day one.
Why Bitronix
What Makes Bitronix Different
Not a feature list. Six specific reasons product teams and CTOs choose Bitronix for dApps that must work for every wallet, on every chain, under every network condition.
01
Wallet Edge Case Coverage
We test against every major wallet, every chain switch failure, every signature rejection path, every nonce conflict. Your dApp doesn't break for the user with the unusual wallet setup - because we've already tested that setup.
02
RPC Resilience By Default
Every dApp ships with multi-provider RPC failover, retry logic tuned to chain finality, and observable health metrics. Your users don't see "Network Error" when Alchemy has an incident - they see continuity.
03
No Black-Box Development
You see every architectural decision, every test result, and every observability output as we build. Your product, security, and ops teams get a live documentation trail they can review at any phase.
04
Multi-Chain From the Architecture Up
We don't bolt multi-chain onto a single-chain dApp. Chain abstraction, transaction routing, and state reconciliation are designed in from day one - so adding the next chain is a configuration change, not a rewrite.
05
Post-Launch Operational Coverage
Most firms ship and disappear. We provide client-side performance monitoring, RPC reliability tracking, and incident response with defined SLAs - because the dApp's performance after launch is what your product metrics actually reflect.
06
A Track Record You Can Diligence
Our case studies are public, our tech stacks are listed, and our integrations are named. Read the architecture, check the chains, verify the firms. We give you the evidence to decide, not asks to trust.
Security & testing methodology
How We Build dApps That Don't Break In Production.
Most production dApp incidents - failed transactions, stuck wallets, indexing drift, RPC blackouts - are preventable with disciplined engineering. We engineer the preventable ones out so your dApp ships on substance, not luck.
01
Wallet & Chain Matrix Testing
Before launch, every supported wallet (MetaMask, Rainbow, Coinbase, WalletConnect, Safe, embedded wallets) is tested against every supported chain across every transaction flow. Edge cases - nonce conflicts, chain switching mid-transaction, hardware wallet rejections - are caught before users find them.
02
Signature Flow Hardening
EIP-712 typed data, EIP-2612 permits, and signature-based auth flows are validated against replay attacks, signature malleability, and frontrunning vectors. Every signed payload is documented; every signature is bounded by domain separators and deadlines.
03
Reorg & Finality Handling
Optimistic UI updates are reconciled against finalised chain state. Transaction confirmations respect chain-specific finality (12 blocks on Ethereum, 1 on Polygon, instant on Solana) - so users don't see false confirmations or ghost transactions after a reorg.
04
RPC Reliability Engineering
Multi-provider failover with health checks, request timeouts, and circuit breakers is standard. RPC failures are observable and graceful - degraded reads from cache, queued writes with retry - not blank screens with cryptic errors.
05
Indexing Drift Prevention
Subgraphs and custom indexers are tested for reorg resilience, backfill correctness, and lag monitoring. UI never shows data the indexer hasn't actually finalised - and observable lag metrics surface drift before users do.
06
Performance & Observability Pack
Every engagement produces a structured handoff: Lighthouse-budgeted bundles, Web Vitals dashboards, transaction success-rate tracking, and wallet-failure mode monitoring. Your product team operates the dApp with the same observability rigour as the rest of your stack.
Our methodology is available to review before you engage.
Industries
dApps Across Industries
Nine industries where dApps are replacing legacy interfaces with permissionless, wallet-native, multi-chain user experiences.
Gaming
Player-facing dApps for asset ownership, marketplace trading, tournament participation, and reward distribution - engineered for the latency and session reliability live gaming demands.
Learn moreGovernment
Citizen-facing portals for verifiable credentials, public records access, and procurement participation - with permissioned-network compatibility and accessibility-first UX.
Learn moreMedia & Entertainment
Creator and fan dApps for content access, royalty distribution dashboards, and IP-licensed engagement experiences - with embedded wallet onboarding for non-crypto-native users.
Learn moreIdentity Management
Self-sovereign identity wallets, credential presentation flows, and selective disclosure interfaces - built for portability across systems and providers.
Learn moreSupply Chain
Multi-stakeholder dApps for shipment tracking, attestation submission, and dispute resolution - with role-based access and channel-level data privacy.
Learn moreLending
Borrower and lender interfaces with health factor monitoring, liquidation alerts, and collateral management - engineered for the latency and accuracy financial UX demands.
Learn moreReal Estate
Investor dApps for tokenised property browsing, KYC-gated subscriptions, and rent-distribution dashboards - with regulated-flow guardrails and compliant onboarding.
Learn moreHealthcare
Patient-controlled access portals, consent management interfaces, and provider verification flows - designed for HIPAA and GDPR compatibility with audit-grade interaction logs.
Learn moreInsurance
Policy-holder dApps for parametric coverage management, claims submission, and oracle-verified payout tracking - with intuitive UX over complex financial primitives.
Learn moreExecution model
Six Phases, One Accountability Chain.
No handoffs that lose context. The team that scopes your dApp programme ships it and supports it post-launch. Every phase produces a defined artifact - nothing moves forward without it.
Phase 1: Discovery
Timeline: 3–5 business days
What happens
User flows, wallet strategy, target chains, and contract integration boundaries mapped before architecture decisions.
Deliverables
- Scope document with in/out boundaries
- Draft user flow specification
- Chain and wallet selection rationale
- Contract integration interface map
- Engagement timeline with phase gates
Phase 2: Architecture
Timeline: 1–3 weeks
What happens
Frontend architecture, backend topology, indexing strategy, and observability plan documented - including rejected alternatives with rationale.
Deliverables
- Architecture specification
- Component and route structure
- Indexing and caching strategy
- Transaction UX state machine
- Observability and analytics plan
Phase 3: Development
Timeline: 4–12 weeks depending on scope
What happens
Frontend components, backend services, indexing infrastructure, and contract integrations built with continuous wallet matrix testing and CI-driven performance budgets.
Deliverables
- Production codebase with type-safe contract bindings
- Backend services with tests
- Subgraph or indexer deployment
- Performance and Web Vitals reports
- Internal staging matching production topology
Phase 4: Validation
Timeline: 2–4 weeks
What happens
Wallet matrix testing, signature flow audit, RPC failover validation, and accessibility review run before launch. Findings triaged and remediated against agreed severity SLAs.
Deliverables
- Wallet/chain compatibility matrix report
- Signature security review
- RPC failover and load test results
- Accessibility audit
- Go/no-go checklist aligned to launch readiness
Phase 5: Launch
Timeline: 1–2 weeks
What happens
Coordinated frontend deployment, backend rollout, indexer activation, and observability go-live against explicit launch criteria - including rollback plans.
Deliverables
- Frontend deployment record with reproducible builds
- Backend rollout log
- Indexer activation confirmation
- Observability dashboard go-live
- Post-launch smoke and synthetic test reports
Phase 6: Support
Timeline: Ongoing - retainer or per-incident
What happens
Client-side performance monitoring, RPC reliability tracking, indexer health, contract upgrade coordination, and incident response under defined SLAs.
Deliverables
- Performance and reliability dashboard
- Incident response playbook with severity matrix
- Scheduled upgrade and dependency-update calendar
- Monthly product-health review (optional retainer tier)
- Change request process for new flows
Timelines assume responsive client feedback at phase gates. Contract finalisation and audit completion are usually the pacing items for dApp launches - if your contracts are still evolving, expect Validation and Launch to compress against that dependency.
How we partner
Engagement Models
Three ways to engage - structured around how your team works, not how we prefer to sell. Every model operates on the same delivery standard, the same engineering team, and the same accountability chain.
01
Dedicated Development Team
3–12 months · 2–5 engineers · Full-time exclusive
Your dApp programme gets a dedicated frontend lead, backend engineer, and Web3 integration specialist working exclusively on your product - no context-switching. Suited to full product launches, multi-chain roadmaps, and post-launch operational coverage.
Best for: Flagship dApps, multi-chain programmes, teams replacing legacy vendors mid-flight
02
Team Extension
1–6 months · 1–3 engineers · Integrated with your team
We embed with your product and platform teams - working in your repos, design reviews, and on-call rotations. You retain UX ownership; we bring wallet matrix depth, indexer expertise, and RPC resilience patterns you don't carry in-house yet.
Best for: In-house teams shipping a major release, startups extending a live dApp, enterprises hardening production
03
Project-Based
4–16 weeks · Fixed deliverables · Fixed price
Defined scope and price agreed before work begins. dApp launches, wallet integration sprints, indexing migrations, account-abstraction rollouts, and performance hardening engagements are common project-based formats - milestone gates and no billable surprises.
Best for: dApp launches, wallet integration sprints, indexing migrations, RPC and observability upgrades
Not sure which model fits? Book a 30-min scoping call → - we'll recommend the right structure based on your team, timeline, and dApp programme scope.
Case studies
Real work, real results.
ProSwap-grade trading interfaces, institutional lending dashboards, RWA investor portals, and governance apps - programmes you can diligence end to end. Case narratives are placeholders; verify before publish.
ProSwap Trading Interface
Multi-chain swap dApp with chain abstraction and gasless approvals via ERC-4337.
ProSwap’s trader-facing interface routes swaps across six EVM networks with unified wallet flows, account-abstraction-powered approvals, and subgraph-backed positions - built for institutional traffic patterns.
$1.2B in trading volume routed through the interface across 6 chains with 99.7% transaction success rate.
Tech stack
- TypeScript
- Next.js
- viem
- wagmi
- The Graph
Meridian Lending App
Lender and borrower dApp with real-time health factor monitoring and liquidation alerts.
Meridian’s institutional dashboard surfaces collateral health, borrow capacity, and liquidation proximity with Goldsky-indexed positions and Tenderly-backed simulation for high-touch lenders.
Reduced average position-management time from 8 minutes to under 90 seconds across institutional users.
Tech stack
- TypeScript
- Next.js
- ethers.js
- Goldsky
- Tenderly
Helix Investor Portal
Tokenised real estate investor dApp with KYC-gated subscriptions and rent-distribution dashboards.
Helix gives qualified investors a single portal to subscribe, track distributions, and download attestations across SPVs - with Privy-powered embedded wallets and Postgres-backed compliance state.
$180M of investor positions managed across 6 SPVs with regulator-observable interaction logs.
Tech stack
- TypeScript
- Next.js
- wagmi
- Privy
- PostgreSQL
Citadel Governance App
Proposal lifecycle dApp with weighted delegation and timelocked execution.
Citadel’s governance surface covers delegation, voting, and execution previews against timelock queues - with viem-powered simulations and The Graph indexing for historical proposal state.
47 governance proposals executed end-to-end with zero failed transactions across 9 months of operation.
Tech stack
- TypeScript
- Next.js
- viem
- The Graph
- Vercel
Testimonials
What our clients are Saying
Discover real stories from clients who have improved delivery, audit readiness, and production operations with our team.
Alexandra Chen
Chief Technology Officer · Northline Markets
Bitronix redesigned our entire settlement architecture. What used to take our ops team four days of manual reconciliation now closes in under fifteen minutes with full audit lineage. The delivery discipline was unlike anything we had seen from an external team.
Daniel Okonkwo
Head of Digital Assets · Helix Capital Partners
We engaged Bitronix to tokenize a $180M real estate portfolio on-chain. They handled investor reporting, compliance checkpoints, and lifecycle events end-to-end. The platform launched on schedule and has processed every redemption without a single incident.
[Founder Name]
Head of Product · [dApp/Protocol]
Bitronix shipped our trading interface across six chains with one wallet flow that just worked. Our support tickets for failed transactions dropped 80% in the first month. The wallet edge case coverage was unlike anything we'd seen from prior agencies.
James Whitfield
General Counsel · Meridian DeFi
We needed a smart contract audit that could actually withstand scrutiny from our legal and compliance teams - not just a checkbox report. Bitronix delivered findings with clear severity classification, remediation paths, and documentation our lawyers could read.
Dr. Sarah Mensah
Chief Digital Officer · Veracure Health Systems
Bitronix built our patient data consent layer on a private blockchain in twelve weeks. They understood HIPAA constraints without us having to explain them twice, and the identity integration with our existing IAM stack was seamless. Exactly what a regulated environment requires.
Marcus Liang
CTO · Axiomatic Energy
Our previous vendor gave us a prototype. Bitronix gave us a production system - with runbooks, observability dashboards, and on-call support from day one. Eighteen months in, our blockchain infrastructure has maintained 99.98% uptime across three regions.
Elena Vasquez
Risk & Controls Lead · Summit Treasury
As risk and controls lead, I cared about traceability more than chain hype. Bitronix mapped every privileged role, emergency pause path, and upgrade story into documentation our regulators could follow. That clarity was the win.
Alexandra Chen
Chief Technology Officer · Northline Markets
Bitronix redesigned our entire settlement architecture. What used to take our ops team four days of manual reconciliation now closes in under fifteen minutes with full audit lineage. The delivery discipline was unlike anything we had seen from an external team.
Daniel Okonkwo
Head of Digital Assets · Helix Capital Partners
We engaged Bitronix to tokenize a $180M real estate portfolio on-chain. They handled investor reporting, compliance checkpoints, and lifecycle events end-to-end. The platform launched on schedule and has processed every redemption without a single incident.
[Founder Name]
Head of Product · [dApp/Protocol]
Bitronix shipped our trading interface across six chains with one wallet flow that just worked. Our support tickets for failed transactions dropped 80% in the first month. The wallet edge case coverage was unlike anything we'd seen from prior agencies.
James Whitfield
General Counsel · Meridian DeFi
We needed a smart contract audit that could actually withstand scrutiny from our legal and compliance teams - not just a checkbox report. Bitronix delivered findings with clear severity classification, remediation paths, and documentation our lawyers could read.
Dr. Sarah Mensah
Chief Digital Officer · Veracure Health Systems
Bitronix built our patient data consent layer on a private blockchain in twelve weeks. They understood HIPAA constraints without us having to explain them twice, and the identity integration with our existing IAM stack was seamless. Exactly what a regulated environment requires.
Marcus Liang
CTO · Axiomatic Energy
Our previous vendor gave us a prototype. Bitronix gave us a production system - with runbooks, observability dashboards, and on-call support from day one. Eighteen months in, our blockchain infrastructure has maintained 99.98% uptime across three regions.
Elena Vasquez
Risk & Controls Lead · Summit Treasury
As risk and controls lead, I cared about traceability more than chain hype. Bitronix mapped every privileged role, emergency pause path, and upgrade story into documentation our regulators could follow. That clarity was the win.
Alexandra Chen
Chief Technology Officer · Northline Markets
Bitronix redesigned our entire settlement architecture. What used to take our ops team four days of manual reconciliation now closes in under fifteen minutes with full audit lineage. The delivery discipline was unlike anything we had seen from an external team.
Daniel Okonkwo
Head of Digital Assets · Helix Capital Partners
We engaged Bitronix to tokenize a $180M real estate portfolio on-chain. They handled investor reporting, compliance checkpoints, and lifecycle events end-to-end. The platform launched on schedule and has processed every redemption without a single incident.
[Founder Name]
Head of Product · [dApp/Protocol]
Bitronix shipped our trading interface across six chains with one wallet flow that just worked. Our support tickets for failed transactions dropped 80% in the first month. The wallet edge case coverage was unlike anything we'd seen from prior agencies.
James Whitfield
General Counsel · Meridian DeFi
We needed a smart contract audit that could actually withstand scrutiny from our legal and compliance teams - not just a checkbox report. Bitronix delivered findings with clear severity classification, remediation paths, and documentation our lawyers could read.
Dr. Sarah Mensah
Chief Digital Officer · Veracure Health Systems
Bitronix built our patient data consent layer on a private blockchain in twelve weeks. They understood HIPAA constraints without us having to explain them twice, and the identity integration with our existing IAM stack was seamless. Exactly what a regulated environment requires.
Marcus Liang
CTO · Axiomatic Energy
Our previous vendor gave us a prototype. Bitronix gave us a production system - with runbooks, observability dashboards, and on-call support from day one. Eighteen months in, our blockchain infrastructure has maintained 99.98% uptime across three regions.
Elena Vasquez
Risk & Controls Lead · Summit Treasury
As risk and controls lead, I cared about traceability more than chain hype. Bitronix mapped every privileged role, emergency pause path, and upgrade story into documentation our regulators could follow. That clarity was the win.
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Ready to ship a dApp your users won't churn from?
Share your contracts, target chains, and launch window - we respond within one business day with a scoped recommendation.
FAQ
Frequently Asked Questions
Straight answers for product, engineering, and procurement teams - before you enter diligence.
Both, and we recommend bundling them when contracts are still in flight - but we work just as effectively against contracts your team or another vendor has already shipped. Our dApp engagements typically operate in one of three modes: (1) full-stack programmes where we develop contracts and dApp together with a unified architecture, (2) dApp-only programmes where we integrate against your finalised contracts and ABIs with type-safe bindings and full edge-case coverage, or (3) hybrid programmes where we provide contract review and minor extensions alongside the dApp build to close gaps the original contract team didn't anticipate. If your contracts haven't been audited yet, we can coordinate that through our audit partner network. If your contracts are live and immutable, we engineer the dApp around their actual behaviour - including any inherited quirks - without asking you to redeploy.
MetaMask, Rainbow, Coinbase Wallet, WalletConnect v2, Safe, Ledger/Trezor via hardware paths, and embedded wallets (Privy, Dynamic, etc.) as required. We ship across Ethereum, major L2s (Arbitrum, Optimism, Base, Polygon, zk rollups), BNB Chain, Avalanche, and Solana where your product demands - always with an explicit compatibility matrix before launch.
Multi-provider routing with health checks, timeouts, circuit breakers, and cached reads where safe. Failures degrade gracefully: queued writes, user-visible retry paths, and ops dashboards - not silent failures. We document your provider mix and escalation paths in the handoff.
Yes - ERC-4337 bundlers and paymasters, EIP-2771 meta-transactions, and sponsor pools with abuse controls and per-user rate limits. We align gasless UX with your risk model and regulatory posture before go-live.
We match the data model to freshness and reorg tolerance: The Graph subgraphs for standard EVM event feeds, Ponder or Goldsky-style pipelines for bespoke transforms, and Postgres materialised views where relational queries dominate. Lag and reorg reconciliation are observable.
Primarily responsive web with wallet flows tested on mobile browsers and PWAs where appropriate. We can partner on React Native or native shells when your distribution strategy requires it - wallet SDK behaviour is validated per platform.
Confirmation UI follows chain-appropriate finality; optimistic updates reconcile when head moves. Users see pending → confirmed → finalised states with copy that matches chain semantics - no "green check" before your risk tolerance allows.
Yes. We start with a compatibility and debt inventory, then stage migrations (wallet layer, RPC layer, indexer) with feature flags and rollback. Brownfield work is our default for established products.
Discovery through production launch commonly runs 8–20 weeks depending on chain count, wallet breadth, and indexer complexity. Core team: lead dApp engineer frontend-focused, integration engineer for wallets and contracts, backend engineer for APIs and workers - scaled per scope.
Contract addresses or ABIs, target chains, supported wallet list, current RPC providers, product analytics baseline, and launch window. We respond within one business day with a scoped recommendation - no NDA required for an initial conversation.