The Role:

The Nimbus team is looking for a Senior Engineer who will take ownership of Developer Experience. Someone who enjoys researching new technologies and building products for the decentralized web while being amid Open Source Libraries and P2P networks. This means writing cool products in Nim for Ethereum and Web3, crafting documentation and SDKs, plus representing the team at developer conferences and online events.

Nimbus is a research team that focuses on developing an Ethereum client and library. We believe that the largest deployment of Ethereum will potentially be on embedded systems and Nimbus is designed to perform well on embedded, mobile and generally resource-restricted devices.

Building the stack from the ground up, we’re translating the latest Ethereum research into practical, performant and reusable libraries to provide fertile exploration ground for further R&D. Check our latest update!

Responsibilities:

• Lead the effort to create a powerful developer experience around Nimbus, both as a library and as an RPC backend.
• Respond to community needs & requests, transforming them into concrete specifications and products or features.
• Be the face of our developer community, represent Nimbus at conferences and online events.
• Create powerful documentation and SDKs.
• Support evangelizing Nimbus as the Ethereum consensus client for mobile devices and embedded systems within the Open Source community.

You will ideally have:

[Don’t worry if you don’t meet all of these criteria, we’d still love to hear from you anyway if you think you’d be a great fit for this role!]

• Interest in open data, blockchain and decentralization.
• 5+ years of professional experience in software engineering.
• Experience with Rust or C/C++, and curiosity about dynamic languages.
• Background in (embedded) systems programming, p2p technologies.
• Familiarity with modern cryptography.
• Experience with APIs, SDKs and crafting documentation.

Bonus points:

• Experience working for an open-source organization.
• Ideally, you’ll have some Nim/Rust/C++ related GitHub projects to make it easier for us to evaluate your skills.
• Basic knowledge of the lexing, parsing and semantic checking passes applicable to a compiler.
• Experience with Nim.

Hiring process:

• Interview with our People Ops team.
• Technical Interview with team members from the Nimbus team.
• Technical Interview with the Nimbus Lead.

[The steps may change along the way if we see it makes sense to adapt the interview stages, so please consider the above as a guideline. We’re looking for you to join our team as soon as possible].

Compensation:

We are happy to pay in either 100% fiat or any mix of fiat and/or crypto.

Flow Traders is looking for an experienced C++ Developer to join our growing Technology team in Amsterdam. The ideal candidate is driven, innovative and passionate about working with the latest technologies. This is a unique opportunity to join a leading proprietary trading firm with an entrepreneurial and innovative culture at the heart of its business

At Flow Traders you will work on developing low-latency systems that are used to trade different asset classes (including equities, derivatives, cryptocurrencies) at many venues around the world. We are looking for motivated software engineers that can take ownership of the full software development life cycle. You will work closely with product owners and traders to gather, discuss and clarify requirements; collaborate with quality assurance engineers to define acceptance criteria and take responsibility for testing and ensuring quality of your implementations; and deploy production and work together with operations engineers and traders to perform post-deployment support and validation.

Some of the technologies we use in the development process

We do not expect previous experience with all the items listed below.

• C++ (Standard in use: C++17. Migrating to C++20 )
• Compilers: gcc 10 / clang 13
• Python
• Build system: CMake
• Version control: Git
• Testing frameworks: Google Test, Pytest, and Nosetest
• Version control/code review system: Bitbucket
• Operating system: Debian Linux
• Continuous integration system: Bamboo
• Deployment automation: Ansible

What You Will Do

Main technical activities include:

• Exchange Connectivity: Your primarily responsibility will be writing software that communicates with exchanges through their APIs, receiving market data and sending orders over the network in different protocols, such as TCP, UDP, Websocket. The quality of software is ensured thanks to a set of testing suites, which you are expected to use, maintain and extend.
• Trading Strategies: Your main responsibility will be to implement trading algorithms based on requirements provided by traders. You will acquire and develop the necessary trading knowledge to successfully translate the requirements into actual software implementation.

What You Need to Succeed

• 6+ years of experience with C++
• Good knowledge of data structures and algorithms
• Cryptocurrency/Blockchain familiarity is a plus
• Understanding of full software development life cycle
• Ability to write clean and simple code
• Relevant experience with unit and regression testing
• Knowledgeable about computer architecture and memory subsystem
• Experience with some Linux distribution
• Good interpersonal and team playing skills
• Able to communicate with stakeholders with different backgrounds

Flow Traders does not accept unsolicited resumes from any professional staffing or search firms. All resumes, and any other information identifying potential candidates, submitted to any employee at Flow Traders via-email, the Internet or directly without a valid and signed search agreement will be deemed the sole property of Flow Traders, and no placement fee will be paid in the event the candidate is hired by Flow Traders.

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