Web, Mobile & Software Dev Jobs & Projects

We are looking for a freelancer who is able:
Setup a Cardano node with RPC communication between linux ubuntu server (polkadot node) & web host (php)
Integrate the ability to generate a deposit address, detect transaction, detect confirmed transaction and send transactions to clients for Cardano and all tokens on the Cardano blockchain
Integration must be made into our existing PHP/MYSQL based application which does the above already for Bitcoin and Ethereum + ERC-20 Tokens.
Applicants must be able to prove that they are able to do the above if they would like to be accepted for the job. It can be proven with a portfolio or existing application they have worked on which includes the above functionality. If you are able to do other popular coins, please see our other jobs.
Thank you.

I will provide a list of addresses and code should use Ethplorer API to output total ETH + total token balances for each address

We're on a mission to make crypto investing super simple & safe for the mass market. We initially will launch an mvp which includes staking ethereum 2.0 as a service - we need a front end engineer to help uplift our app's look & feel based on the design. Please express your interest to join our start up - we want this to be a long-term arrangement as we grow. Initially, you will be part time but we want this to be a full time thing in the future. 

Hello,
We are making a voting application which uses proof of attendance tokens to register users to enable them to vote on topics inside communities and the results being sent to be discussed at the UN.
People need a voice now more than ever and with our help we cando this.

At Request, our mission is to interconnect isolated financial systems to create more efficient and inclusive economies. We are accomplishing this by building a completely decentralized and open network for transaction requests.
WE BUILD THE FUTURE OF INVOICING AND BUSINESS
Our core technology is an open-source protocol. It allows records of transactions to be easily stored and accessed. This shared network gives financial systems a shared language to communicate.
On top of this, we are building Request Invoicing, the biggest crypto-friendly invoicing application. Request users benefit from our unique payment detection solution: the reconciliation of invoices payments is 100% automated. CFOs, accountants, and auditors have the clearest financial view they could imagine.
Our upcoming priorities may include: 
Integration of more blockchains and currencies
Improvement of the payers’ UX with different kinds of wallets (for example multisig wallets)
Decentralized escrow system embedded within the smart invoice, fiat on-ramps & off-ramps, mobile app, etc.
YOUR RESPONSIBILITIES
Participate in the Request Invoicing development
Keep yourself up-to-date with our stack: Typescript, Node, React, Mongo, Kubernetes, Docker, NPM, Circle CI.
Participate in the continuous improvement of the Request Network library, make it easy to pay and get paid on Ethereum and other public blockchains with open-source packages: request-client.js, payment-processor, payment-detection, etc.
Propose functional and design improvements, challenge the infrastructure, the development & release process.
Design and implement integrations with partners (Invoicing REST API, payment detection on other blockchains, accounting software, etc.)
Optionally gain knowledge and responsibility for our decentralized framework: ethers.js, IPFS, Solidity, Infura.
QUALIFICATIONS
Solid knowledge of computer science fundamentals: algorithms, data structures, databases, distributed systems, operating systems, networking
Strong interest in blockchain technology, and the future of payments
Strong knowledge of Typescript and Node.js
Used to open-source development
Understanding of API design (REST, RPC)
Good understanding of git and continuous integration tools
Self-motivated, innovative, and proactive
Ability to take responsibility for projects and the willingness to learn and grow professionally in a team environment
Willingness to improve by giving and asking for feedback
Team spirit above personal results
 
Bonus - this makes you stand out
Good knowledge of Ethereum: frequent dapp usage or smart-contract development
Familiarity with Kubernetes, Helm, Google Cloud Platform, CircleCI
Mobile development (architecture, design, development framework)
Cryptography
Monitoring of stability and performances
 

At Request, our mission is to interconnect isolated financial systems to create more efficient and inclusive economies. We are accomplishing this by building a completely decentralized and open network for transaction requests.
WE BUILD THE FUTURE OF INVOICING AND BUSINESS
Our core technology is an open-source protocol. It allows records of transactions to be easily stored and accessed. This shared network gives financial systems a shared language to communicate.
On top of this, we are building Request Invoicing, the biggest crypto-friendly invoicing application. Request users benefit from our unique payment detection solution: the reconciliation of invoices payments is 100% automated. CFOs, accountants, and auditors have the clearest financial view they could imagine.
Our upcoming priorities may include:
- Integration of more blockchains and currencies
- Improvement of the payers’ UX with different kinds of wallets (for example multisig wallets)
- Decentralized escrow system embedded within the smart invoice, fiat on-ramps & off-ramps, mobile app etc.
YOUR RESPONSIBILITIES
Contribute to a decentralized protocol built on the blockchain
Maintain and improve the Request Network javascript libraries
Develop Request core infrastructure and front-end applications
Participate in the choices of engineering methodologies, tools, and organization
Keep yourself up-to-date with the rapidly evolving blockchain ecosystem and drive changes in the protocol and the team
Work autonomously inside a high performing team
Support the developer community to build on top of Request
QUALIFICATIONS
Solid knowledge of computer science fundamentals: algorithms, data structures, databases, distributed systems, operating systems, networking
Strong knowledge of Typescript and Node.js
Understanding of API design (REST, RPC)
Good understanding of git and continuous integration tools
Self-motivated, innovative, and proactive
Ability to take responsibility for projects and the willingness to learn and grow professionally in a team environment
Bonus - this makes you stand out
Experience developing on top of Ethereum: development and deployment of smart contracts, understanding of blockchain tools such as ethers and truffle
Experience with several blockchain platforms and able to demonstrate a deep understanding of the blockchain architecture
Experience with decentralized file systems like IPFS, swarm, dat, hyperdrive.
Experience with modern web development, especially React
Familiarity with Kubernetes, Amazon Web Services, or Google Cloud Platform
Knowledge of Infura

Se solicita desarrollador, que tenga conocimientos de español nivel nativo
Estamos buscando un desarrollador experto con el fin de desarrollar nuestra propia criptomoneda
Hola en Finit, estamos necesitando crear una criptomoneda con los próximos requisitos, buscamos desarrolladores con el último historial en estos proyectos y también estamos aceptando y enumerando recomendaciones. Los requisitos son: Estamos buscando crear una criptomoneda para nuestro campus de estudiantes, y volver esta misma un sistema de dinero y compensación entre los estudiantes del campues de la comunidad, por lo que este será un lms donde los estudiantes del campus puedan realizar transacciones entre nombres de usuario y recibir comisiones o reembolsos. Necesitamos cotización que incluya la aplicación móvil y el panel del sitio web para usuarios, tutores, administrador y superadministrador con un agradable ux Los requisitos de nuestra cryptomoneda que buscamos Queremos desarrollar la misma bajo fork o que nos aconsejes cual seria la mejor opcion que cumpla con estas condiciones Estamos pensando entre Binance Smart Chain, Nem, Tron, XLM o Xrp para crear una cryptomoneda transaccional sin gastar millones en recursos tecnologicos *Fee transaccional bajo * Procesamiento rápido de grandes volúmenes de transacciones * La criptomoneda debe manejar transacciones altas, aproximadamente 50,000 nombres de usuario activos y será 1 millón de usuarios a finales de 2021 * Fácil de cumplir con los aspectos legales para los reguladores. * Seguro * Carteras múltiples * Carteras de múltiples firmas si esto es posible para mi propio token * Fácil de adaptar y agregar a intercambiadores y otros proveedores de billeteras * La criptomoneda también se utilizará para recibir dinero, enviar dinero, transacciones y liquidación, preferimos una criptomoneda con bifurcación de proyectos bancarios como steller o xrp o BSC Binance * Pagos Qr * Compatibilidad multiformato

Требуется помощник с дальнейшей официальной работой в корпорации мирового масштаба 
https://sites.google.com/view/iddevice/dislide
Stanislav Honcharov Skype: ibmer8 

I need to clone a crypto wallet web app, mainly its GUI. For the functions, most would be probably changed.

Dear reader,
I need an online store to sell digital products which consist of text data, the products should be bought by shop balance which can be recharged with cryptocurrencies.
Monero (XMR), Dash and Bitcoin should be supported where ill setup for each a full node, and the shop system should handle transactions/topups through each of the JSON-RPC APIs of those full nodes.
Preferably the shop will be either based on Laravel or Symfony, with a simple bare Bootstrap 4 layout.
The shop should have a user panel which has the following feature for the customer:
Ticket section - to resolve any issues
Order section - to view any ordered product
Topup section - to topup/recharge users balance with crypto
Profile section - to change options for the user and profile settings like password
Also of course a tradtional list of categories and products.
Products should have a mass order discount which should also be displayed for the user in the frontend.
An admin panel with proper acl to manage users, products, categories, tickets, crypto wallets, shop settings etc.
If you have any more questions please do not hesitate to ask.

Dilygent, a digital web development shop is looking for fullstack developers with React skills along Symfony or Drupal 8/9 experience, for on-demand work (~10 to 32 hours per week)
NOTE: We are looking to hire individuals, not any company.

We are looking for mobile developers who are well versed in REACT NATIVE.
We want to develop a mobile application for Android or IOS (details can be found in the appendix).
You are responsible for the interface development in REACT NATIVE, the API is a simple POST-GET JSON API and is almost finished.
We are looking for people who want to work together for the long term.
The project should be completed within in 2 weeks. You need to find some icons or other graphics buy your self, but we provide a professional template what you will use for the mobile application.

I am willing to pay to an android specialist who will publish my Android application. A candidate must have an active developer account on the Google Play Market and possess the Android programming skills. To participate in the competition, you need to post the provided Android App Bundle on the GooglePlay Market. The winner will receive$200and the further employment.
 

Solidity engineer
Platinum Software Company is looking for a solidity engineer for the development of our DeFi project.
If you are interested in participating in the development of a DeFi project, let us know your rates and the type of work you can collaborate with us on. Thank you!
Tech Stack:
-Solidity
-Truffle
-Web3.js
-JavaScript
-Unit Testing
-Open Zeppelin & ZOS
Responsibilities:
-Developing, testing and deploying complex smart contract systems
Nice-to-haves
Deep understanding and passion for DeFi
Terms :
- Remote work
- Fixed salary or hourly rate
- Part-time or full-time position
- up to $4000 (30-40 per hour)
How to Apply
To apply, email your CV & github profile to hr@platinum.fund
 
Our website : platinum.fund

Work with our team remotely to bring our web service into a mobile App (crypto price tracking website).
- Contribute to design, testing, release and support of the app.
- Work with colleagues to innovate app functionality after.
Requirements:
- English language for written communication in Slack
- proven experience as a Mobile developer (CV, Github, endorsements)
- Experience with third party library and APIs
Payment can happen in 14 day cycle, 20 hour equiv.at $28 per hour.

Searching for a Frontend Developer that is experienced in working with HTML and JAVASCRIPT for an interactive website, possibly including data from blockchain explorer services.
The job consists of approximately 10 hours of analyzing our current website for improvements and naming meaningful solutions in PDF form (app. 20 hours).
30 hours in total.
You should include suggestions about displaying blockchain (Ethereum) data (transactions) on the site. Hence we are looking for a Developer with a certain understanding of how blockchain works, more specifically pulling data from explorers.
NOTE: An additional contract will be set up for the actual implementation of those solutions. Hourly wage for that one will be about $45.

Please only apply if you feel comfortable that those requirements fit your skills and experience:
• Software development and maintenance (enhancement, changes, bugs fixing, tests development)
• implementing Customer Reviews
• Perform automated API Tests
• broad understanding of blockchain mechanics
This will be a re-occuring contract on a monthly basis. Budget is set to payment per month. Approximately 60h per month.
Work is being carried out remotely. Communication in team mostly on Slack or Telegram.

Need to do QA test for crypto exchange 
Goal is understanding that all functions works correct 
Time is around 20 hours