Our Services

NFT Development & Engineering

Production-grade NFT contracts, marketplaces, and infrastructure - engineered for royalty enforcement, marketplace compatibility, and brand-safe operation at scale.

Book a Strategy Call →View case studies

or download our NFT launch readiness checklist →

  • 200+

    NFT collections deployed across networks

  • $640M+

    Aggregate primary sale volume supported

  • 50+

    Marketplaces and brand programmes shipped

  • 8+

    Years of NFT engineering experience

Our services

NFT Development Services

Nine NFT engineering disciplines - from collection contracts and marketplaces to royalty infrastructure, gaming assets, and RWA-backed tokens - each scoped independently and engineered to enterprise production standards.

NFT Collection Development

We build ERC-721 and ERC-1155 collections with provable randomness, allowlist mechanics, phased mint logic, and royalty enforcement compatible with major marketplaces.

NFT Marketplace Development

We engineer end-to-end marketplace contracts and infrastructure - listings, auctions, offers, and settlement - with custom fee logic and white-label brand layers.

Dynamic & Generative NFTs

We implement on-chain generative art, trait composition, and dynamic NFTs that evolve based on oracle data, time, or holder interaction without compromising metadata integrity.

Gaming NFTs & In-Game Assets

We build asset contracts for player ownership, cross-game interoperability, equipment composition, and tournament reward distribution - engineered for live gaming throughput.

NFT Royalty Infrastructure

We implement EIP-2981, ERC-4907, and operator-filter royalty enforcement with on-chain payout splitting, creator allocation logic, and marketplace compliance tracking.

Soulbound & Identity NFTs

We engineer non-transferable credentials, reputation tokens, and verifiable membership instruments with revocation registries and selective disclosure flows.

NFT-Backed Finance

We build lending, fractionalisation, and rental contracts (ERC-4907) for NFT collateralisation - integrated with major DeFi protocols and oracle-priced floor feeds.

RWA-Backed NFTs

We deploy NFTs representing real-world assets - luxury goods, real estate fractions, event tickets - with attestation oracles, transfer restrictions, and authenticity verification rails.

Cross-Chain NFT Deployment

We deploy collections across EVM and non-EVM chains with bridge integration, supply reconciliation, and unified ownership records - including L2 and Solana-native deployments.

Next step

Ready to scope your NFT programme?

Share your collection model, target chains, and launch timeline - we respond within one business day with a scoped recommendation, not a sales pitch.

Book a Strategy Call →Schedule a 30-min call

Delivery scope

Six deliverables, zero ambiguity.

Every engagement produces a defined artifact set. Scope is agreed upfront; nothing is a billable surprise.

01

Collection architecture & metadata strategy

Standard selection, metadata storage decision (on-chain, IPFS, Arweave), and reveal mechanics defined before contract code is written.

02

Royalty & access control specification

EIP-2981 implementation, operator filter strategy, and role hierarchies for mint/burn/admin paths documented and reviewed.

03

Mint mechanics & sale infrastructure

Allowlist logic, phased mint windows, anti-bot guards, and refund-safe sale contracts built and tested against adversarial mint scenarios.

04

Audit-ready contract codebase

Natspec-complete contracts with invariant tests, fuzz suites, 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, marketplace listing prep, and multisig ceremony scripts for treasury custody.

06

Operational runbooks & launch playbook

Documented procedures for reveals, royalty management, emergency pause, and marketplace operations - handed to your brand and ops teams, not kept in our heads.

Tooling stack

Our NFT Development Technology Stack

Chosen for marketplace compatibility, royalty enforcement, and production track record across NFT launches.

Default stack

Solidity · Foundry · OpenZeppelin · IPFS · Chainlink VRF

Programming languages

  • Solidity

    EVM NFTs

  • Rust

    Solana & Metaplex

  • Move

    Aptos & Sui NFTs

  • Vyper

    Audit-friendly EVM

  • TypeScript

    Tooling & deploy scripts

  • JavaScript

    Marketplace UI

  • Python

    Trait generation & rarity

  • Go

    Indexing services

  • Cairo

    StarkNet NFTs

  • GLSL

    Generative on-chain art

NFT standards & frameworks

  • ERC-721

    Standard NFTs

  • ERC-1155

    Multi-token / semi-fungible

  • ERC-2981

    Royalty standard

  • ERC-4907

    Rentable NFTs

  • ERC-6551

    Token-bound accounts

  • ERC-721A

    Gas-optimised mint

  • Metaplex

    Solana NFT standard

  • OpenZeppelin

    Secure libraries

  • Solmate

    Gas-optimised primitives

  • Operator Filter

    Royalty enforcement

Networks & marketplaces

  • Ethereum

    L1 mainnet launches

  • Polygon

    Low-fee minting

  • Arbitrum

    Optimistic rollup

  • Base

    Coinbase L2

  • Optimism

    OP Stack

  • Solana

    Metaplex ecosystem

  • Avalanche

    Subnet collections

  • OpenSea

    Marketplace integration

  • Blur

    Pro-trader marketplace

  • Magic Eden

    Multi-chain marketplace

Tools & integrations

  • Foundry

    Test & deploy framework

  • Hardhat

    Dev environment

  • Chainlink VRF

    Provable randomness

  • IPFS

    Decentralised metadata

  • Arweave

    Permanent storage

  • Pinata

    IPFS pinning

  • The Graph

    Indexing & subgraphs

  • Tenderly

    Debug & monitor

  • Reservoir

    Marketplace aggregation

  • Gnosis Safe

    Treasury multisig

Trust & diligence

Audit Partner Ecosystem

We coordinate audit and code review with recognised third-party firms your stakeholders, marketplaces, and brand partners already trust - a critical signal for major collection launches and enterprise IP holders.

CertiK(opens in a new tab)Hacken(opens in a new tab)QuillAudits(opens in a new tab)Hashlock(opens in a new tab)SolidProof(opens in a new tab)ChainSecurity(opens in a new tab)

Third-party names and marks belong to their respective owners.

Partner with us

Built for Brands That Can't Afford a Failed Mint.

NFT launches are unforgiving. A failed mint embarrasses your brand and refunds become an operational nightmare. A royalty bypass costs your creators ongoing revenue. A metadata error becomes permanent the moment it hits IPFS. We build for teams who treat NFT launches as brand infrastructure - with adversarial mint testing, royalty enforcement, and operational playbooks from day one.

Book a Strategy Call →

Why Bitronix

What Makes Bitronix Different

Not a feature list. Six specific reasons brand teams, gaming studios, and marketplace founders choose Bitronix for launches that must clear audit, satisfy marketplaces, and protect creator revenue.

01

Mint-Proof Engineering

We don't ship contracts that haven't been stress-tested against bot armies, sniping scripts, and gas-war scenarios. Every mint goes live having survived adversarial simulation - so your launch doesn't end up as a Twitter post-mortem.

02

Royalty Enforcement By Default

We implement EIP-2981, operator filters, and on-chain payout splits as standard - not as a paid add-on. Creator revenue protection is engineered in from day one, with documented marketplace compatibility for OpenSea, Blur, Magic Eden, and aggregators.

03

No Black-Box Development

You see every architectural decision, every test result, and every threat model output as we build. Your brand, legal, and IP teams get a live documentation trail they can review at any phase.

04

Multi-Chain Execution

We deploy across Ethereum, Polygon, Base, Solana, and Layer 2s - driven by your audience, gas-cost strategy, and marketplace presence, not our tooling preferences. Cross-chain ownership reconciliation is built in.

05

Marketplace & Brand Aware

Most firms hand over contracts and disappear. We prepare the metadata schemas, royalty configurations, and operational documentation your marketplaces, IP licensors, and brand-safety teams will demand before they engage.

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.

Review our case studies →

Security & testing methodology

How We Make NFT Contracts Mint-Safe Before Launch.

Most failed mints, royalty bypasses, and metadata disasters are preventable with disciplined engineering. We eliminate the preventable ones so your launch hits the trending feed for the right reasons.

01

Adversarial Mint Modelling

Before contracts are written, we model your mint mechanics against bot armies, gas-war scenarios, allowlist sniping, and reentrancy through hook callbacks. Mint flow is engineered to survive contact with hostile mempools - not just unit-test happy paths.

02

Threat Modelling for NFT Issuance

We document every privileged role, mint boundary, royalty path, and metadata mutation vector. Attack surfaces specific to NFTs - operator-filter bypass, metadata poisoning, signature replay on allowlists - are mapped before production code lands.

03

Invariant-Based Testing

We define what must always be true: total supply caps, allocation per wallet, royalty BPS bounds, metadata immutability post-reveal. These are encoded as on-chain invariants tested via Echidna and Foundry fuzzing across millions of execution paths.

04

Metadata & Reveal Validation

Reveal logic, IPFS pinning strategies, and metadata update paths are tested against the irreversibility of on-chain state. Off-by-one errors, race conditions in reveal timing, and IPFS gateway failure modes are caught before they freeze your collection's identity on-chain.

05

Marketplace Compatibility Pre-Checks

Before audit, we run contracts against the compatibility checks major marketplaces apply - OpenSea creator earnings, Blur royalty rules, ERC-2981 detection, operator-filter compliance. Findings are resolved before external review starts.

06

Audit Preparation Pack

Every engagement produces a structured handoff: natspec-complete code, documented invariants, test coverage reports, mint simulation outputs, and a threat model your auditors can diligence end to end. External reviewers consistently cite preparation quality as the single biggest factor in audit speed and cost.

Our methodology is available to review before you engage.

Industries

NFT Programmes Across Industries

Nine industries where NFTs are replacing legacy ownership, licensing, and access primitives - from gaming economies and brand collectibles to ticketing and tokenised collectibles.

Gaming

Player-owned in-game assets, cross-game interoperability, tournament reward NFTs, and equipment-composition systems - engineered for the throughput live gaming economies demand.

Learn more

Government

Verifiable credentials, public certification NFTs, and tamper-evident record issuance - deployed on permissioned or hybrid networks with regulator-grade audit trails.

Learn more

Media & Entertainment

Creator-issued collectibles, fan engagement NFTs, royalty-bearing music tokens, and IP-licensed brand collaborations - with on-chain payout logic and platform-agnostic ownership records.

Learn more

Identity Management

Soulbound credentials, professional certification NFTs, and verifiable membership instruments - non-transferable by design, portable across systems by default.

Learn more

Supply Chain

Authenticity-bound product NFTs, luxury goods provenance, and tamper-evident shipping certificates - linked to off-chain attestations through audited oracle pathways.

Learn more

Lending

NFT-collateralised lending positions, fractionalised debt instruments, and floor-priced liquidation engines - engineered for composability with major DeFi NFT-finance protocols.

Learn more

Real Estate

Property-fraction NFTs, deed-anchored ownership records, and rental-rights tokens (ERC-4907) - issued under regulated transfer restrictions with title verification rails.

Learn more

Healthcare

Patient-controlled health credentials, clinical-trial participation NFTs, and consent-bound research access tokens - designed for HIPAA and GDPR compatibility from issuance.

Learn more

Insurance

Policy NFTs, parametric coverage instruments, and catastrophe bond fractions - settling against oracle-verified events without manual claims reconciliation.

Learn more

Execution model

Six Phases, One Accountability Chain.

No handoffs that lose context. The team that scopes your NFT 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

Collection model, utility mechanics, target chains, and marketplace strategy mapped before architecture decisions.

Deliverables

  • Scope document with in/out boundaries
  • Draft collection specification
  • Chain and standard selection rationale
  • Marketplace and royalty strategy register
  • Engagement timeline with phase gates

Phase 2: Architecture & Mint Design

Timeline: 2-4 weeks

What happens

Contract structure, mint mechanics, royalty paths, and metadata strategy documented. Adversarial mint scenarios simulated.

Deliverables

  • Contract architecture specification
  • Role and permission matrix
  • Mint simulation report
  • Metadata storage and reveal plan
  • Integration interface contracts (marketplaces, oracles, indexers)

Phase 3: Development

Timeline: 3-8 weeks depending on scope

What happens

Collection, marketplace, and supporting contracts built against the spec with continuous invariant testing and fuzz campaigns.

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

Timeline: 2-6 weeks depending on audit firm availability

What happens

Contracts submitted to chosen firm; findings triaged and remediated through to sign-off. Mint mechanics and royalty paths get particular attention.

Deliverables

  • Audit preparation pack
  • Findings triage report
  • Root-cause fix per critical/high finding
  • Regression test per finding
  • Final audit certificate coordination

Phase 5: Launch

Timeline: 3-5 business days

What happens

Deterministic multi-chain deployment, multisig treasury ceremony, marketplace listing, and reveal coordination.

Deliverables

  • Deployment transaction record with verified bytecode
  • Block explorer verification confirmation
  • Multisig ceremony script and execution log
  • Marketplace listing confirmation
  • Post-deployment smoke test report

Phase 6: Support

Timeline: Ongoing - retainer or per-incident

What happens

Reveal operations, royalty management, secondary-market monitoring, and incident response under defined SLAs.

Deliverables

  • Marketplace and on-chain monitoring dashboard
  • Incident response playbook with SLA tiers
  • Scheduled reveal/airdrop operation scripts
  • Quarterly royalty enforcement review
  • Change request process for contract modifications

Timelines assume responsive client feedback at phase gates. Audit firm availability is the most variable factor - reserve audit slots 4-6 weeks in advance of your target mint date. Brand approvals, IP licensing reviews, and marketplace verification windows often constrain the schedule; share these dependencies during Discovery.

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 NFT programme gets a dedicated smart contract engineer, marketplace engineer, and DevOps specialist working exclusively on your collection or venue - no context-switching. Suited to full collection launches, marketplace builds, and post-mint operational coverage.

Best for: Major collection launches, white-label marketplaces, long-runway gaming asset programmes

02

Team Extension

1-6 months · 1-3 engineers · Integrated with your team

We embed with your brand, creative, and engineering teams - working in your repos and on your marketplace partners' technical reviews. You retain product ownership; we bring mint-hardening, royalty enforcement, and metadata pipeline depth you don't carry in-house yet.

Best for: In-house teams approaching mint, studios extending live collections, brands adding NFT surfaces

03

Project-Based

4-16 weeks · Fixed deliverables · Fixed price

Defined scope and price agreed before work begins. Collection launches, marketplace builds, audit readiness sprints, and standalone generative mint modules are common project-based formats - milestone gates and no billable surprises.

Best for: Collection launches, marketplace builds, royalty retrofit programmes, migration cutovers

Not sure which model fits? Book a 30-min scoping call → - we'll recommend the right structure based on your team, timeline, and NFT programme scope.

Case studies

Real work, real results.

Brand and IP collections, white-label marketplaces, gaming asset layers, and luxury provenance rails - programmes you can diligence end to end. Case narratives are placeholders; verify before publish.

Gaming & Metaverse

NFT Universe: An OpenSea-Class NFT Marketplace, Shipped End-to-End

Custom NFT marketplace development - minting, auctions, royalties, and collection discovery on MERN + Solidity

NFT Universe is a full-featured, production-grade NFT marketplace Bitronix Technologies designed and built for creators and collectors. Rather than reskinning a generic white-label template, we engineered a marketplace with the trading flows users expect from leading venues - wallet onboarding, gas-aware minting, on-chain royalties, live auctions, and an indexer-backed explorer that stays accurate under load.

OpenSea-class marketplace flows: minting, auctions, listings, and collection discovery backed by IPFS metadata.

Tech stack

  • MongoDB
  • Express
  • React
  • Node.js
  • Solidity
  • Ethereum
  • IPFS
Read case study →
DeFi

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.

Liquidity and routing stack adjacent to token launches when collections pair with tradable assets.

Tech stack

  • MongoDB
  • Express
  • React
  • Node.js
  • Solidity
  • Ethereum
  • TypeScript
Read case study →
FinTech

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.

Outcome-share mechanics and collateral surfaces comparable to modern prediction venues.

Tech stack

  • MongoDB
  • Express
  • React
  • Angular
  • Node.js
  • Solidity
  • Chainlink
Read case study →
DeFi

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.

Composable DeFi primitives when NFT collateralisation or treasury lending enters scope.

Tech stack

  • Solidity
  • Foundry
  • Chainlink
  • TypeScript
  • Ethereum
Read case study →
View all case studies →

Google reviews

Hear from our clients

Verified feedback from our Google Business Profile.

Google

Excellent service and communication, fast response and transparent , will do more business in future.

Mohd Shahzad

Google review

Google

A extremely brilliant experience. We are mesmerised by their services and the immense knowledge they have in their field. We certainly look forward to have a great relationship with this company and hope to do many projects together, learning and using their expertise for our business.

M محمد Riaz Vali Sayed

Google review

Google

My experience with Bitronix Technologies was excellent The staff were polite and professional, communication was clear, and the project was completed on schedule. Their transparent pricing and smooth process made everything stress-free. Strongly recommend their services.

Vishakha Chaudhary

Google review

Google

Had a great experience with Bitronix Technologies. They understood my requirements from the very first call. The process was smooth, communication was clear, and the project was delivered on time. Pricing was fair and transparent with no hidden surprises. Highly recommended!

Md Empire

Google review

Google

Worked with Bitronix Technologies for a blockchain project and honestly couldn't be happier. They delivered everything on time, no delays, no excuses - and the pricing was very reasonable for the quality of work. The team clearly knows their stuff. Highly recommend if you're looking for reliable tech development!

Monty Thakur

Google review

Google

I had a very good experience with Bitronix Technologies. Their team is very smart, helpful, and knows their work well. They completed my project on time and the quality of work was really good. Thank you to the whole team for the hard work and support. I would surely recommend them.

Asif Ali

Google review

Google

Excellent service and communication, fast response and transparent , will do more business in future.

Mohd Shahzad

Google review

Google

A extremely brilliant experience. We are mesmerised by their services and the immense knowledge they have in their field. We certainly look forward to have a great relationship with this company and hope to do many projects together, learning and using their expertise for our business.

M محمد Riaz Vali Sayed

Google review

Google

My experience with Bitronix Technologies was excellent The staff were polite and professional, communication was clear, and the project was completed on schedule. Their transparent pricing and smooth process made everything stress-free. Strongly recommend their services.

Vishakha Chaudhary

Google review

Google

Had a great experience with Bitronix Technologies. They understood my requirements from the very first call. The process was smooth, communication was clear, and the project was delivered on time. Pricing was fair and transparent with no hidden surprises. Highly recommended!

Md Empire

Google review

Google

Worked with Bitronix Technologies for a blockchain project and honestly couldn't be happier. They delivered everything on time, no delays, no excuses - and the pricing was very reasonable for the quality of work. The team clearly knows their stuff. Highly recommend if you're looking for reliable tech development!

Monty Thakur

Google review

Google

I had a very good experience with Bitronix Technologies. Their team is very smart, helpful, and knows their work well. They completed my project on time and the quality of work was really good. Thank you to the whole team for the hard work and support. I would surely recommend them.

Asif Ali

Google review

5.06 Google reviews
View on Google →

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Next step

Ready to launch a collection your brand and marketplaces will trust?

Share your collection model, target chains, and mint window - we respond within one business day with a scoped recommendation.

Book a Strategy Call →

FAQ

Frequently Asked Questions

Straight answers for brand teams, founders, and procurement teams - before you enter diligence.

Contract development is our core practice - but we don't operate in isolation from your creative team. We integrate directly with your art director, generative artists, or brand agency to handle trait composition, rarity weighting, metadata schema design, and reveal mechanics. We don't replace your creative direction; we engineer the on-chain infrastructure that makes it work - including provable rarity via Chainlink VRF, IPFS or Arweave metadata pinning, and marketplace-compatible JSON schemas. If you don't have a creative team yet, we can recommend partners we've worked with on prior collections; if you do, we slot into your existing workflow without forcing tooling changes. The deliverable from our side is always: contracts that mint exactly the assets your brand approved, with metadata that resolves correctly across every marketplace your collection will list on.

ERC-721, ERC-1155, ERC-2981, ERC-4907, ERC-6551, ERC-721A, Metaplex on Solana, and custom extensions where marketplace requirements allow. We deploy across Ethereum, Polygon, Arbitrum, Optimism, Base, Avalanche subnets, and Solana - chain selection follows your audience, gas strategy, and marketplace roadmap.

We implement EIP-2981 with documented basis points, operator-filter registries where your royalty policy requires them, and on-chain payout routing for multi-creator splits. Compatibility matrices for OpenSea, Blur, Magic Eden, and major aggregators are delivered with your launch pack.

Yes - listing, offer, auction, and settlement contracts; indexer-backed APIs; and brand-facing front ends. Fee logic, creator verification hooks, and moderation workflows are scoped to your compliance and brand-safety requirements.

We recommend storage strategy against your permanence, cost, and mutability requirements: fully on-chain for small payloads, IPFS with pinning SLAs for most PFP collections, Arweave for permanence-critical references - with gateway fallbacks and integrity checks documented before mint.

Yes - companion contracts across EVM L2s, Solana counterparts, and bridge messaging (e.g. LayerZero, Wormhole) with supply and ownership reconciliation so marketplaces and explorers show consistent collection state.

Allowlist signatures with expiry and nonce discipline, per-wallet caps, phased windows, optional gas refunds, and mempool-aware testing against sniper scripts. Mechanics are fuzzed under adversarial conditions before mainnet.

We ship the audit preparation pack, coordinate with your firm or our network, triage every finding, implement root-cause fixes, and add regression tests through sign-off - with emphasis on mint paths and royalty logic.

A collection-plus-marketplace programme from Discovery through audit-ready deploy often runs 10-18 weeks depending on generative complexity, chain count, and audit availability. Typical team: lead NFT engineer, security-focused reviewer, and DevOps for pinning and deploy pipelines - scaled per scope.

Useful inputs: collection size and mint mechanics, target chains, marketplace listing plan, royalty recipients and splits, creative pipeline (generative vs curated), IP licensing constraints, and target mint date. We respond within one business day with a scoped recommendation.