AMM & DEX Development
We build constant-product, stable-pool, and concentrated-liquidity AMMs with custom routing, slippage controls, and MEV-resistant swap mechanics - deployable across target EVM chains.
Our Services
DeFi Development & Engineering
Production-grade DeFi protocols engineered for solvency under stress, oracle manipulation resistance, and the operational realities of running financial infrastructure on-chain.
80+
DeFi protocols deployed across networks
$2.4B+
TVL secured at peak across deployments
0
Solvency events across protocols in production
8+
Years of DeFi engineering experience
Our services
DeFi Development Services
Nine DeFi engineering disciplines - from AMM design and lending markets to perpetuals, yield strategies, and oracle infrastructure - each scoped independently and engineered to financial-infrastructure standards.
Lending & Borrowing Protocols
We engineer isolated and shared-pool lending markets with configurable LTV, liquidation auctions, oracle-gated price feeds, and interest rate models tuned for solvency under stress.
Perpetuals & Derivatives
We build perpetual futures, options, and synthetic asset protocols with funding rate mechanics, mark-price oracle aggregation, and liquidation engines designed for adversarial conditions.
Yield Aggregators & Vaults
We develop ERC-4626 vaults, auto-compounding strategies, and yield routers with strategy-level access controls, harvest automation, and slippage-bounded rebalancing.
Liquid Staking & Restaking
We engineer liquid staking tokens, validator delegation contracts, and restaking integrations with slashing protection, withdrawal queue management, and reward distribution logic.
Stablecoin Protocols
We design overcollateralised, algorithmic, and delta-neutral stablecoin architectures with oracle-anchored peg mechanics, redemption rails, and reserve transparency built in.
DeFi Oracles & Price Infrastructure
We integrate Chainlink, Pyth, RedStone, and TWAP-based oracle systems with manipulation resistance, fallback strategies, and circuit breakers tuned to your asset risk profile.
Cross-Chain DeFi Infrastructure
We build bridge-aware DeFi protocols with unified liquidity, cross-chain message verification, and rate-limited withdrawal queues - engineered for the trust assumptions of each bridge.
MEV Protection & Order Flow
We implement private mempools, batch auctions, commit-reveal schemes, and Flashbots-aware transaction routing - protecting users from sandwich attacks and toxic order flow.
Next step
Ready to scope your DeFi programme?
Share your protocol design, target chains, and launch 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
Protocol architecture & risk specification
Asset flows, privilege boundaries, risk parameters, and oracle dependencies documented before a line of production code is written.
02
Solvency & invariant model
Mathematical model of protocol solvency under stress, encoded as on-chain invariants tested via Echidna and Foundry fuzzing across millions of execution paths.
03
Liquidation & auction design
Liquidation triggers, auction mechanics, and bad-debt absorption paths designed and stress-tested against historical adversarial scenarios.
04
Audit-ready contract codebase
Natspec-complete contracts with property-based tests, differential tests, and gas profiling - handed to your audit firm or ours with no preparation gap.
05
Deployment & verification pipelines
Deterministic multi-chain deploys, block explorer verification, parameter governance ceremony scripts, and oracle configuration runbooks.
06
Operational runbooks & incident playbooks
Documented procedures for parameter updates, oracle migration, emergency pause, and incident response - handed to your treasury and ops teams, not kept in our heads.
Tooling stack
Our DeFi Development Technology Stack
Chosen for security track record, ecosystem maturity, and production reliability across DeFi deployments.
Default stack
Solidity · Foundry · OpenZeppelin · Chainlink · Echidna
Programming languages & frameworks
Solidity
EVM contracts
Vyper
Audit-friendly EVM
Rust
Solana DeFi
Move
Aptos & Sui DeFi
Huff
Gas-critical primitives
TypeScript
Tooling & SDKs
Python
Risk modelling
Foundry
Test & deploy framework
Hardhat
Dev environment
Anchor
Solana framework
DeFi primitives & libraries
OpenZeppelin
Secure libraries
Solmate
Gas-optimised primitives
ERC-4626
Tokenised vault standard
ERC-3156
Flash loan standard
Uniswap v3/v4
Concentrated liquidity
Curve StableSwap
Stable-pool math
Aave v3
Lending architecture reference
Compound V3
Comet architecture
GMX
Perpetuals architecture
MakerDAO
Stablecoin reference
Oracle & infrastructure
Chainlink
Price feeds & VRF
Pyth Network
Pull oracle
RedStone
Modular oracle
API3
First-party oracle
UMA
Optimistic oracle
Chronicle
Decentralised oracle
TWAP
Time-weighted pricing
Flashbots
MEV-aware execution
CoW Protocol
Batch auction
1inch Fusion
Intent-based routing
Security & verification tools
Echidna
Property-based fuzzing
Foundry Invariants
Stateful fuzzing
Slither
Static analysis
Mythril
Symbolic execution
Certora
Formal verification
Halmos
Symbolic testing
Tenderly
Debug & monitor
Forta
Real-time threat detection
DefiLlama
TVL & analytics
Gauntlet
Risk parameter modelling
Trust & diligence
Audit Partner Ecosystem
We coordinate audit and code review with recognised third-party firms your stakeholders, listing partners, and TVL providers already trust - a critical signal for protocol launches, exchange integrations, and institutional capital allocation.
Third-party names and marks belong to their respective owners.
Partner with us
Built for Protocols Where Solvency Is Non-Negotiable.
DeFi protocols don't get second chances. A single oracle manipulation drains a lending pool. A liquidation engine that fails under stress accumulates bad debt your treasury can't cover. A reentrancy bug in a vault becomes a $50M post-mortem on Twitter. We build for teams who understand that DeFi is financial infrastructure - with invariant testing, formal verification where it matters, and operational playbooks that assume adversarial conditions from day one.
Why Bitronix
What Makes Bitronix Different
Not a feature list. Six specific reasons protocol founders and treasury teams choose Bitronix for DeFi programmes that must stay solvent under stress and credible to institutional capital.
01
Solvency-First Engineering
Every protocol we build ships with a documented solvency model - what must be true for the protocol to remain solvent under every condition we can simulate. We don't ship code that doesn't have a corresponding invariant proof. Bad debt scenarios are designed for, not discovered after.
02
Adversarial Testing By Default
We don't test the happy path. We test against the attacker - oracle manipulation, sandwich attacks, donation attacks, reentrancy through hook callbacks, governance attacks. Every protocol survives our adversarial suite before it gets near an auditor.
03
No Black-Box Development
You see every architectural decision, every test result, and every threat model output as we build. Your treasury, risk, and investor relations teams get a live documentation trail they can review at any phase - and hand to allocators during diligence.
04
Multi-Chain Risk-Aware
We deploy across Ethereum, Arbitrum, Optimism, Base, Polygon, and Solana - with explicit risk modelling for each chain's bridge assumptions, oracle availability, and finality characteristics. Cross-chain isn't a deployment afterthought; it's a risk parameter.
05
Post-Launch Risk Coverage
Most firms ship and disappear. We provide on-chain monitoring with Forta, oracle health tracking, parameter governance support, and incident response with defined SLAs - because DeFi protocols don't have launch days, they have operational lifetimes.
06
A Track Record You Can Diligence
Our case studies are public, our tech stacks are listed, and our audit partners 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 DeFi Protocols That Survive Adversarial Conditions.
Most DeFi exploits - oracle manipulation, reentrancy, governance capture, liquidation cascades - are preventable with disciplined engineering. We engineer the preventable ones out so your protocol earns capital, not headlines.
01
Solvency Modelling First
Before contract code is written, we model what solvency means for your protocol under every condition: collateral value crashes, liquidation cascades, oracle delays, bridge failures. Solvency conditions are documented as mathematical invariants - not as intentions in a narrative deck alone.
02
Threat Modelling for Financial Primitives
We document every privileged role, every oracle dependency, every external call, every flash-loanable invariant. Attack surfaces specific to DeFi - sandwich attacks, donation attacks, governance capture, MEV extraction - are mapped before production code lands.
03
Property-Based & Differential Testing
Solvency invariants, monotonicity properties, and conservation laws are encoded and tested via Echidna and Foundry fuzzing across millions of paths. Critical math is differentially tested against reference implementations and Python or Rust models.
04
Adversarial Simulation
Every protocol is stress-tested against historical exploit patterns: bZx-style oracle manipulation, Cream-style donation attacks, Mango-style governance capture, Euler-style donation reentrancy. If a published attack pattern works on your protocol, we find it before an auditor or attacker does.
05
Formal Verification Where It Counts
For high-value invariants - solvency bounds, total supply conservation, liquidation correctness - we apply Certora or Halmos where it materially reduces residual uncertainty. We don't apply formal verification everywhere; we apply it where passing unit tests alone would be misleading for financial guarantees.
06
Audit Preparation Pack
Every engagement produces a structured handoff: natspec-complete code, documented invariants with proofs, test coverage reports, adversarial simulation outputs, oracle configuration documentation, and a threat model your auditors can diligence end to end.
Our methodology is available to review before you engage.
Industries
DeFi Across Industries
Nine industries where DeFi primitives are replacing legacy financial infrastructure - with verifiable solvency, programmable risk parameters, and on-chain settlement.
Gaming
In-game economies with on-chain liquidity, asset-backed lending, and tournament prize pools - engineered for the throughput and latency live gaming demands without sacrificing solvency guarantees.
Learn moreGovernment
Tokenised treasury instruments, programmable subsidy distribution, and parametric public-finance products - issued on permissioned or hybrid networks with regulator-grade transparency.
Learn moreMedia & Entertainment
Creator-financing pools, royalty-collateralised lending, and revenue-share liquidity primitives - with on-chain payout logic and platform-agnostic settlement.
Learn moreIdentity Management
Sybil-resistant lending markets, reputation-gated yield strategies, and credential-backed credit scoring - using verifiable identity primitives without exposing personal data.
Learn moreSupply Chain
Receivables financing, inventory-collateralised lending, and trade-finance liquidity pools - linked to off-chain attestations through audited oracle pathways.
Learn moreLending
Isolated and shared-pool lending markets with configurable LTV, liquidation engines, and interest rate models - engineered for solvency under stress and institutional risk tolerance.
Learn moreReal Estate
Property-collateralised lending, fractionalised yield distribution, and rent-backed liquidity primitives - issued under regulated transfer restrictions with NAV oracle integration.
Learn moreHealthcare
Tokenised receivables financing for providers, clinical-trial funding pools, and oracle-verified milestone payments - with HIPAA-compatible attestation flows.
Learn moreInsurance
Parametric coverage liquidity pools, reinsurance treaty primitives, and on-chain claims settlement - settling against oracle-verified events without manual reconciliation.
Learn moreExecution model
Six Phases, One Accountability Chain.
No handoffs that lose context. The team that scopes your DeFi 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
Protocol mechanics, risk parameters, asset support, oracle strategy, and target chains mapped before architecture decisions.
Deliverables
- Scope document with in/out boundaries
- Draft protocol specification
- Chain and oracle selection rationale
- Regulatory and integration constraints register
- Engagement timeline with phase gates
Phase 2: Architecture & Risk Modelling
Timeline: 2-4 weeks
What happens
Contract structure, role hierarchies, oracle dependencies, liquidation mechanics, and solvency invariants documented. Risk parameters modelled against adversarial conditions.
Deliverables
- Architecture specification
- Role and permission matrix
- Solvency invariant document
- Liquidation auction design
- Oracle aggregation strategy
- Integration interface contracts
Phase 3: Development
Timeline: 4-12 weeks depending on scope
What happens
Protocol contracts built against the spec with continuous invariant testing, fuzz campaigns, and adversarial simulation in CI.
Deliverables
- Production contract codebase with full natspec
- Unit and integration test suite (target 100% line coverage)
- Invariant and fuzz test suite
- Gas profiling report
- Deployment scripts with deterministic addresses
Phase 4: Audit & Adversarial Validation
Timeline: 3-8 weeks depending on audit firm availability
What happens
Contracts submitted to chosen firm; adversarial simulation re-run against final code; formal verification applied to critical invariants. Findings triaged and remediated through to sign-off.
Deliverables
- Audit preparation pack
- Findings triage report
- Root-cause fix per critical/high finding
- Regression test per finding
- Formal verification proofs for critical invariants
- Final audit certificate coordination
Phase 5: Launch
Timeline: 1-2 weeks
What happens
Deterministic multi-chain deployment, parameter governance ceremony, oracle configuration, monitoring activation, and bug bounty programme launch.
Deliverables
- Deployment transaction record with verified bytecode
- Block explorer verification
- Governance ceremony script and execution log
- Forta and Tenderly monitoring activation
- Bug bounty programme handoff
Phase 6: Support
Timeline: Ongoing - retainer or per-incident
What happens
On-chain monitoring, oracle health tracking, parameter governance support, and incident response under defined SLAs.
Deliverables
- Risk and solvency monitoring dashboard
- Incident response playbook with severity matrix
- Scheduled parameter governance calendar
- Monthly risk review (optional retainer tier)
- Change request process for protocol upgrades
Timelines assume responsive client feedback at phase gates. Audit firm availability and formal verification scheduling are typically the pacing items - reserve audit slots 6-8 weeks in advance of your target launch date. Bug bounty platform onboarding (Immunefi, Code4rena) often runs in parallel with audit and should be initiated during Phase 4.
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 DeFi programme gets a dedicated protocol engineer, security-focused reviewer, and integrations specialist working exclusively on your markets - no context-switching. Suited to full protocol launches, multi-market expansions, and post-launch operations.
Best for: Flagship protocols, multi-chain deployments, teams replacing vendors mid-flight
02
Team Extension
1-6 months · 1-3 engineers · Integrated with your team
We embed with your protocol, risk, and infrastructure teams - working in your repositories and war rooms. You retain economic design ownership; we bring invariant testing depth, oracle integration rigour, and liquidation-engine expertise you don't carry in-house yet.
Best for: In-house teams shipping a major upgrade, protocols extending to new chains, treasuries hardening live markets
03
Project-Based
4-16 weeks · Fixed deliverables · Fixed price
Defined scope and price agreed before work begins. Protocol launches, audit-readiness sprints, risk parameter reviews, oracle migration cutovers, and liquidation-engine refactors are common project-based formats - milestone gates and no billable surprises.
Best for: Protocol launches, audit-readiness sprints, risk parameter reviews, oracle and liquidation upgrades
Not sure which model fits? Book a 30-min scoping call → - we'll recommend the right structure based on your team, timeline, and DeFi programme scope.
Case studies
Real work, real results.
AMM deployments, institutional lending cores, ERC-4626 vault programmes, and perpetuals engines - programmes you can diligence end to end. Case narratives are placeholders; verify before publish.
ProSwap: A Uniswap-Style AMM DEX with Custom Pools and Swap Routing
Uniswap-style AMM DEX development - constant-product and stable pools, swap router, and liquidity analytics on MERN + Solidity
ProSwap is a custom decentralized exchange (DEX) we built in the Uniswap tradition: an automated market maker with constant-product and stable-style pools, configurable slippage controls, and a swap router the client could brand and deploy to their target chain. Bitronix delivered the full AMM stack - Solidity pool and router contracts, a trader-facing swap app, pool analytics, and an operator panel - engineered for a controlled mainnet launch.
Deployable AMM stack with documented deployment scripts and swap UX for controlled launches.
Tech stack
- MongoDB
- Express
- React
- Node.js
- Solidity
- Ethereum
- TypeScript
Meridian Lending Markets: Isolated-Pool DeFi Lending for Institutional Desks
DeFi lending protocol development - isolated pools, configurable LTV, risk-bounded liquidations, and Chainlink oracle safeguards
Meridian is an isolated-pool DeFi lending protocol we engineered for institutional desks. It pairs aggressive capital efficiency with conservative risk controls: per-asset silos, configurable loan-to-value (LTV) and liquidation bonuses, and predictable auction paths that keep solvency provable under stress. Bitronix delivered the full lending-protocol surface - Solidity markets, oracle safeguards, and a composable liquidation router - built audit-ready from day one.
Zero solvency events across 14 months of live operation under adverse market conditions.
Tech stack
- Solidity
- Foundry
- Chainlink
- TypeScript
- Ethereum
Uwin: A Polymarket-Style Prediction Market with On-Chain Settlement
Polymarket-style prediction market development - outcome-share trading, Chainlink resolution, and collateral accounting on MEAN/MERN + Solidity
Uwin is a custom prediction market platform we built end-to-end, inspired by Polymarket: traders buy and sell outcome shares on real-world events, with transparent resolution rules and deep liquidity across binary and multi-outcome markets. Bitronix delivered the full surface - trader app, operator console, smart contracts, and oracle-backed settlement - rather than skinning a generic template.
Prediction marketplace with on-chain settlement hooks and operator-run resolution playbooks.
Tech stack
- MongoDB
- Express
- React
- Angular
- Node.js
- Solidity
- Chainlink
Harbor RWA Settlement: On-Chain Rails for Tokenized Real-World Assets
RWA tokenization development - policy-gated minting, NAV oracle quorum, and qualified-custodian segregation on Ethereum
Harbor is on-chain settlement infrastructure we built for tokenizing real-world assets (RWAs). It connects off-chain custody and attestations to transferable reference tokens: mint and burn paths are policy-gated, NAV updates are bound to a signer quorum, and redemption queues stay observable to both issuers and investors. Bitronix engineered the full settlement surface - core contracts, compliance modules, and verification tooling - to mirror fund rules while keeping investor data off-chain.
$28M in regulated asset references settled on-chain across 6 institutional counterparties.
Tech stack
- Solidity
- Hardhat
- IPFS
- TypeScript
- Ethereum
Google reviews
Hear from our clients
Verified feedback from our Google Business Profile.
5.06 Google reviews
View on Google →Other services
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Ready to launch a protocol that earns institutional capital, not headlines?
Share your protocol design, target chains, and launch window - we respond within one business day with a scoped recommendation.
FAQ
Frequently Asked Questions
Straight answers for protocol founders, treasury teams, and procurement - before you enter diligence.
Solvency modelling is the first deliverable on every DeFi engagement, not a side artefact. Before contract code is written, we document what solvency means for your specific protocol - the mathematical conditions that must hold for the protocol to remain solvent under every adversarial scenario we can simulate. For lending markets, that's collateral coverage under price shocks, liquidation efficiency, and bad-debt absorption paths. For AMMs, it's invariant preservation under donation attacks and rounding edge cases. For perpetuals, it's funding rate convergence and insurance fund adequacy under cascading liquidations. These conditions are encoded as on-chain invariants tested via Echidna and Foundry fuzzing - and where the cost of failure justifies it, formally verified via Certora or Halmos. We pair this with adversarial simulation against historical exploit patterns: bZx-style oracle manipulation, Cream-style donation attacks, Mango-style governance capture, Euler-style donation reentrancy. If a published attack pattern works on your protocol, we find it before an auditor or attacker does. We coordinate economic risk parameter modelling with firms like Gauntlet or Chaos Labs when scale and complexity warrant - but the engineering invariants are non-negotiable on every engagement.
AMMs (constant product, stable, concentrated liquidity), lending and perpetuals, vaults and aggregators, liquid staking interfaces, stablecoin cores, oracle aggregation, and cross-chain messaging integrations. We ship across Ethereum, Arbitrum, Optimism, Base, Polygon, BNB Chain, Avalanche, and Solana where your liquidity and security model allows - with explicit trade-offs documented before build.
We select oracle topology against manipulation cost, staleness tolerance, and failover paths: Chainlink, Pyth, RedStone, TWAPs, and hybrid aggregation with circuit breakers. Fallback and pause semantics are documented; heartbeat and deviation thresholds are tuned to asset liquidity.
Yes - batch auctions, commit-reveal flows, Flashbots-aware routing, and integrations with private RPC or auction venues where your product model supports them. We document residual MEV surface honestly after implementation.
We specify triggers, partial liquidations, auction types, keeper incentives, and bad-debt socialisation paths - then fuzz under volatility paths and oracle delay scenarios. Liquidation correctness is a first-class invariant, not an afterthought.
Core practice is contract and protocol engineering with documented parameter rationale. For large programmes we coordinate with economic risk partners (e.g. Gauntlet, Chaos Labs) for simulation-backed recommendations - your counsel and treasury own final numbers.
We ship the audit preparation pack, coordinate with your firm or our partner network, triage every finding, implement root-cause fixes, and add regression tests through sign-off. Formal verification is scoped to invariants where proof materially reduces uncertainty.
Yes - we align scope, severity rubrics, and disclosure timelines with Immunefi, Code4rena, or your preferred venue, typically starting during adversarial validation so findings flow into a single triage process.
Discovery through audit-ready core often runs 10-22 weeks depending on market count, oracle complexity, and formal verification depth. Core team: lead protocol engineer, security reviewer, DevOps for deploy and monitoring - scaled per scope.
Market designs, asset universe, target chains, oracle preferences, liquidation philosophy, governance model, intended listing or integration partners, and target launch window. We respond within one business day with a scoped recommendation.