About BlockTech

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About

BlockTech (originally known as CRATR) was founded by professionals from the software development industry and derivatives trading industry.

By combining knowledge and experience from different fields, we were quickly capable of securing stable revenues from trading algorithms in the cryptocurrency market.

Currently we are active in the field of cryptocurrency options trading, a new and fast growing derivatives market that is rapidly expanding. Our aim is to expand our current backbone, which consists of both Bitcoin and Ethereum options and futures, into more types of cryptocurrencies and exchanges.

As a company, we believe we can help shape the future by developing tools that help improve trading practices and liquidity within the market.

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Mission

It’s our mission to improve transparency and increase liquidity within the market

This is what has made the company successful so far. We believe in a democratic trading system in which participants should be free of counterparty risk. But our goal is to go further than this.

Blockchain technology is relatively new and we believe it will change the future. We want to be on the forefront of these developments, create new ways of using blockchain technology and help develop innovative software in the process.

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Market

The decentralization of proof of assets is an inevitable development and we are here to facilitate liquidity to speed up the process.

We use complicated mathematical formulas to improve the speed and accuracy of option trading, with a network spanning across the globe. To facilitate our trading applications, we use top tier hardware.

Our History

February 2018

BlockTech B.V. (CRATR) was founded

July 2018

BlockTech started quoting Bitcoin options

August 2018

The company moved its headquarters from Alkmaar to Amsterdam

March 2019

BlockTech expanded its portfolio with Ethereum options

December 2019

A new version of BlockTech’s market maker software was launched

December 2020

To facilitate a rapidly expanding workforce, BlockTech upgraded to a bigger office in Amsterdam

April 2021

Released the new time value pricing model

Next month

Expand our team

Teams

General

Work hard, play hard - with a no nonsense mentality.

We propagate a social working environment where your performance is just as important as your well-being.

The BlockTech culture is best described as highly-collaborative, where your efforts and input directly shape our business in multiple ways.

Our environment is fast paced and expectations are high. To maximize efficiency on the work floor, we are very open and direct.

We have an office gym, a foosball table, dartboard and meditation area. The lunch is catered, snacks and fruits are stocked at all times, and we have borrels every Friday!

Engineering

Highly skilled developers that work on our software.

The software engineers at BlockTech focus on the performance and reliability of our self-built trading system that runs 24/7.

They continuously add new features that makes our automated trading system smarter or improve our analytic tools to get a better understanding of how we are performing.

The team works with the latest technologies to ensure we stay ahead of the competition.

Quantitative Analysts

Elite mathematicians that work on our models.

The quants at BlockTech focus on the mathematics behind our trading system.

They improve our pricing models (that they develop themselves), create better insights by building analytic tools and fix bugs.

The team has a great balance between theoretical knowledge and curiosity on one hand, and practical experience and application on the other hand.

Infrastructure

Command-line wizzards that work on our architecture.

The infra's build the network and middleware infrastructure to support the other teams in building performant and stable software.

This support spans from the remote servers where our software is running, to the desktops and laptops of the individual programmers.

They actively manage the firewalls, databases, physical servers, virtual machines, containers, CI/CD and monitoring.

Trading

Men who stare at numbers.

Traders at BlockTech supervise the automatic trading system and perform OTC trades.

In addition, we analyze the company's profit and loss, monitor the margin positions and track the performance of our trades.

Based on the results of this analysis, new requirements are designed for the quants and engineers to finetune the trading system.

Vacancies

This fast-growing cryptocurrency startup is hiring!

BlockTech is an ambitious, rapidly growing cryptocurrency start-up with great growth potential in a young and booming industry. The startup is well funded, generating revenue and lead by veterans with multiple years of experience in finance, trading, research and software development. As a cryptocurrency trading company we believe we can help shape the future by developing tools to improve trading and liquidity in the market.

We are a recognized sponsor for non-EU candidates

What are we looking for?

The Delta1 Team is responsible for creating and executing all strategies related to Delta one products. We are a team of Quants, Quant Traders and Software Engineers that work closely together to produce latency critical trading applications. As a Senior software engineer you will play a pivotal role in defining the software architecture for the team. You will be able to work on a variety of technical challenges such as setting up connections to multiple exchanges and making sure that our trading strategies can execute a fast as possible.

If you like solving difficult technical problems and work on the forefront of technology, the D1 Desk is the place for you!

  • 5+ years commercial experience as a developer (Rust/C++/Java);
  • Programming experience in Python is a strong plus;
  • Communication skills in English both spoken and written;
  • Able to set the direction of a project and work - independently;
  • Track record of producing low-latency, high performance code.
  • Chance of a permanent, full time position in a relaxed and trendy office located in Amsterdam
  • Be part of a highly-collaborative and experienced team in the innovative and fast growing cryptocurrency industry
  • A competitive base -and a company and individual performance based variable salary
  • Use state-of-the-art technology and operate the cryptocurrency trading application
  • Enjoy a delicious catered lunch at the office, Friday drinks, company events, gym reimbursement and much more!
What are we looking for?

The Options market making team is responsible for providing liquidity in the upcoming market of cryptocurrency options. We have developed into one of the biggest market makers for cryptocurrency options. The market is maturing and we are maturing with it. With us you will have the possibility to develop components completely from scratch, which will enable us to obtain top-notch performance and stay ahead of the game. This means that you will carry big responsibilities and you will have the ability to steer the direction of the company with your newly developed components. When you are not working on new code, you will help us maintain and improve the current infrastructure and logic.

  • 5+ years commercial experience as a developer (Rust/C++);
  • Programming experience in Python is a strong plus;
  • Communication skills in English both spoken and written;
  • Critical mind who follows things until completion;
  • Ability to confidently work on completely new components;
  • Willingness to take on responsibility and ownership.
  • Chance of a permanent, full time position in a relaxed and trendy office located in Amsterdam
  • Be part of a highly-collaborative and experienced team in the innovative and fast growing cryptocurrency industry
  • A competitive base -and a company and individual performance based variable salary
  • Use state-of-the-art technology and operate the cryptocurrency trading application
  • Enjoy a delicious catered lunch at the office, Friday drinks, company events, gym reimbursement and much more!
What are we looking for?

The Positions desk explores complex correlations in market behavior in multiple currencies and multiple exchanges, and then converts them into profitable trading strategies.

This is a relatively new undertaking within BlockTech, so you'll get a lot of freedom in building a greenfield project, as well as a lot for responsibility to get it right the first time.

  • You thrive in a fast-paced high-pressure informal meritocratic environment
  • You're proficient in at least two of:
    • Python
    • Rust
    • React.js + Node.js
    • Relational databases
    • Ansible + Docker
    And you don't mind getting your hands dirty with the rest if the problem at hand demands it.
  • Communication skills in English both spoken and written
  • You have practical experience building and running a distributed mission-critical 24/7 system
  • Chance of a permanent, full time position in a relaxed and trendy office located in Amsterdam
  • Be part of a highly-collaborative and experienced team in the innovative and fast growing cryptocurrency industry
  • A competitive base -and a company and individual performance based variable salary
  • Use state-of-the-art technology and operate the cryptocurrency trading application
  • Enjoy a delicious catered lunch at the office, Friday drinks, company events, gym reimbursement and much more!
What are we looking for?

We are looking for a Quantitative Developer who is passionate about blockchain and wants to join a start-up with great track-record and growth potential in an innovative and fast growing industry. You will be working as part of an ambitious team in a technical environment.

  • You have the freedom to choose the path that leads to the solution
  • As a Quantitative Developer you will work on the specification and implementation of our mathematical models
  • As part of an Agile Scrum team you will be working on the infrastructure of our platform
  • An academic degree in Computer Science, Mathematics, Econometrics (or any other quantitative field)
  • Skills to translate your creative mind into a software model
  • Commercial experience working with C++ or Python
  • Proven versatility and ability to pick up new technologies and learn systems quickly
  • Communication skills in Dutch or English
  • Positive can-do attitude and a creative mind
  • Willingness to commit long-term
  • Chance of a permanent, full time position in a relaxed and trendy office located in Amsterdam
  • Be part of a highly-collaborative and experienced team in the innovative and fast growing cryptocurrency industry
  • A competitive base -and a company and individual performance based variable salary
  • Use state-of-the-art technology and operate the cryptocurrency trading application
  • Enjoy a delicious catered lunch at the office, Friday drinks, company events, gym reimbursement and much more!
What are we looking for?

Are you the person that can take ownership of the risk management and profit and loss calculation systems of BlockTech and take it to the next level? Do you have strong software development skills and do you love solving technical challenges? Then this role is for you!

You will be working on the internal bookkeeping systems that are used by the trading departments to measure the profitability and risk and to keep track of internal trading portfolios. These systems play a pivotal role in the company as they are used to constantly measure and tweak the trading strategies. Your responsibility will be to extend these systems based on the requirements of the trading department and troubleshoot any issues that might arise during the day. Additionally you will be using the visualization tool that was made to quickly identify any issues with the profit and loss calculation system.

  • 2+ years commercial experience as a Developer, working on production code;
  • Programming skills in Python;
  • Communication skills in English both spoken and written;
  • Some affinity with visualization/data science is a plus;
  • Analytical skills and familiarity with quantitative analysis/pricing is a plus.
  • Chance of a permanent, full time position in a relaxed and trendy office located in Amsterdam
  • Be part of a highly-collaborative and experienced team in the innovative and fast growing cryptocurrency industry
  • A competitive base -and a company and individual performance based variable salary
  • Use state-of-the-art technology and operate the cryptocurrency trading application
  • Enjoy a delicious catered lunch at the office, Friday drinks, company events, gym reimbursement and much more!
What are we looking for?

BlockTech is a fast growing start-up. Our systems perform quite well but its time to design the new iteration. Our current setup does not scale with the ever increasing requirements. Therefore we are looking for a Postgresql DBA to join the team. The most interesting part of this job is that you will works closely together with the developers, to design the new schema that will support the growth of the coming years.You will get the chance to have a strong influence on the design and direction of the improved solution.

Majority of the work is to implement, tune and architectural design of partitioned databases using the timescaledb extension. The DBA works within an environment of rapid growth and must anticipate and respond effectively to needs as they emerge.

  • Create and administer postgresql databases in multinode setup environments (including docker / kubernetes)
  • Tune and optimize the performance of SQL
  • Monitoring and automation
  • Upgrade databases
  • Use latest technologies
  • 5-7 years of relevant experience
  • Experience in PostgreSQL 9.6+
  • Experience in PostgreSQL database architecture, logical and physical design
  • Strong knowledge of Linux
  • Strong understanding of command line and server administration
  • Knowledge of timescaledb is a big plus
  • Knowledge of different types of replication and partitioning
  • Knowledge of shell scripting (e.g., Bash, Perl)
  • Knowledge of Docker containerization
  • Knowledge of other RDMBS or NoSQL is a plus
  • Knowledge of big data solutions and ETL / BI tooling
  • B.S. in Computer Science, Mathematics, or Engineering or equivalent work experience
  • Chance of a permanent, full time position in a relaxed and trendy office located in Amsterdam
  • Be part of a highly-collaborative and experienced team in the innovative and fast growing cryptocurrency industry
  • A competitive base salary
  • A generous profit sharing pool based on company- and individual performance
  • Enjoy a delicious catered lunch at the office, Friday drinks, company events, gym reimbursement and much more!
What are we looking for?

BlockTech is a high paced, algorithmic market maker, that facilitates global decentralized trading in cryptocurrency derivatives. Our state-of-the-art option pricing models are controlled through intuitive and highly performant interfaces. These operations generate a lot of data, which we use to gain insight into our trading strategies and market position. Currently, we are building out our analytics capabilities to further automate and streamline our data processing needs. As such we are looking for a Data Scientist to strengthen the team and help in this development.

  • Enhance our trading strategies through data analysis
  • Support our quants to gain insight into our mathematical models
  • Help in setting up and use our database and analytics infrastructure
  • An academic degree in Computer Science, Mathematics, Econometrics (or any other quantitative field)
  • Proven versatility and ability to pick up new technologies and learn systems quickly
  • Commercial experience with Python and SQL
  • Familiarity with data processing / pipeline technologies
  • Affinity with data visualizations
  • Chance of a permanent, full time position in a relaxed and trendy office located in Amsterdam
  • Be part of a highly-collaborative and experienced team in the innovative and fast growing cryptocurrency industry
  • A competitive base -and a company and individual performance based variable salary
  • Use state-of-the-art technology
  • A training budget for personal and professional development
  • Enjoy a delicious catered lunch at the office, Friday drinks, company events, gym reimbursement and much more!
What are we looking for?

BlockTech is a high paced, algorithmic market maker, that facilitates global decentralized trading in cryptocurrency derivatives. Our state-of-the-art option pricing models are controlled through intuitive and highly performant interfaces. BlockTech is looking to hire a Full Stack developer to help further develop a highly performant, data-heavy, real-time trading and analytics application, with a React based front-end and a NodeJS/Python backend.

  • Design intuitive and clear interfacing, giving traders insight and oversight of our models and the market.
  • Actively collaborate with and get feedback from the rest of the team to build and improve user-facing features
  • Optimize applications for performance
  • Write readable, scaleable and reusable code
  • You will work in a highly-collaborative startup culture and join a diverse, multi-skilled, DevOps team with an ambitious view on the future of the new economy.
  • Experience with Javascript frameworks, such as React (prefered), Vue or similar.
  • Proficient understanding of web markup, including HTML and (S)CSS
  • Affinity with webdesign and UX
  • Academic degree
  • Strong communication skills in English
  • Independent, proactive work approach
  • Positive can-do attitude and a creative mind
  • Chance of a permanent, full time position in a relaxed and trendy office located in Amsterdam
  • Be part of a highly-collaborative and experienced team in the innovative and fast growing cryptocurrency industry
  • A competitive base salary
  • A generous profit sharing pool based on company- and individual performance
  • Enjoy a delicious catered lunch at the office, Friday drinks, company events, gym reimbursement and much more!
What are we looking for?

BlockTech is a high paced, algorithmic market maker, that facilitates global decentralized trading in cryptocurrency derivatives. Our state-of-the-art option pricing models are controlled through intuitive and highly performant interfaces. BlockTech is looking to hire a frontender to help further develop a highly performant, data-heavy, real-time trading and analytics application, with a React based front-end and a NodeJS/Python backend.

  • Design intuitive and clear interfacing, giving traders insight and oversight of our models and the market.
  • Actively collaborate with and get feedback from the rest of the team to build and improve user-facing features
  • Optimize applications for performance
  • Write readable, scaleable and reusable code
  • You will work in a highly-collaborative startup culture and join a diverse, multi-skilled, DevOps team with an ambitious view on the future of the new economy.
  • Experience with Javascript frameworks, such as React (prefered), Vue or similar.
  • Proficient understanding of web markup, including HTML and (S)CSS
  • Affinity with webdesign and UX
  • At least Bachelor of Applied Science (HBO)
  • Strong communication skills in English
  • Independent, proactive work approach
  • Positive can-do attitude and a creative mind
  • Chance of a permanent, full time position in a relaxed and trendy office located in Amsterdam
  • Be part of a highly-collaborative and experienced team in the innovative and fast growing cryptocurrency industry
  • A competitive base salary
  • A generous profit sharing pool based on company- and individual performance
  • Enjoy a delicious catered lunch at the office, Friday drinks, company events, gym reimbursement and much more!
What are we looking for?

BlockTech is growing faster than ever. As we are expanding our business activities globally, we will also need the right people to support it. To be able to hire top talent, we are now looking for a Senior Tech Recruiter.

Are you looking for a role with great responsibilities and variety? As a Senior Tech Recruiter you will responsible for the full cycle of recruitment, from sourcing, interviewing, managing the hiring process, extending offers and doing the negotiations. Additionatelly, you will also be responsible for HR related tasks such a being the first point of contact for employees, on- and offboarding and a correct and an up-to-date administration in our HRIS.

In the role of Senior Tech Recruiter, you are able to find the needle in the haystack! In a highly competitive market, you manage to attract Senior Software Engineers, Quant Developers and Quant Traders with your creative recruitment strategies.

  • Minimum of 3-5 years experience as a (Tech) Recruiter in a fast growing organization, in a trading firm, or agency
  • Good communication and writing skills in English
  • Focused on ensuring a positive candidate experience throughout the whole process
  • A natural networker who loves building relationships
  • Able to source candidates via multiple channels
  • A track record of building succesful pipelines
  • Able to work in a fast paced environment where priorities can quickly change
  • Living in the Netherlands
  • Chance of a permanent, full time position in a relaxed and trendy office located in Amsterdam
  • Be part of a highly-collaborative and experienced team in the innovative and fast growing cryptocurrency industry
  • A competitive base -and a company and individual performance based variable salary
  • Use state-of-the-art technology
  • A training budget for personal and professional development
  • Enjoy a delicious catered lunch at the office, Friday drinks, company events, gym reimbursement, in-house gym and much more!
What are we looking for?

BlockTech is a high paced, algorithmic market maker, that facilitates global decentralized trading in cryptocurrency derivatives. Through state-of-the-art option pricing models, we have become the largest global cryptocurrency option market maker.

As BlockTech is rapidly expanding, we have opened a position as an Office Manager. This is a great opportunity if you are looking for a job with lots of responsibilities and a variety of tasks where no day is the same! Together with our current Office Manager, you will have a crucial role in ensuring that the office runs smoothly on a day-to-day basis.

  • Responsible for office management regarding food, beverages, office supplies and facilities
  • Manage the financial administration (invoices/tax reporting such as WBSO and WKR)
  • Support in organizing outings, Friday drinks and company trips
  • First point of contact for vendors
  • Handling the (postal) mail and incoming phone calls
  • Create and maintain a clean, safe and pleasant work environment for all our employees
  • Welcoming new employees
  • Provide support with HR administrative tasks
  • Fluent in both Dutch and English
  • Attention to detail and good organization skills
  • Good communication and interpersonal skills
  • Likes to take on responsibility and has a hands-on mentality
  • Comfortable working in a fast-changing environment
  • Chance of a permanent, full time position in a relaxed and trendy office located in Amsterdam
  • Be part of a highly-collaborative and experienced team in the innovative and fast growing cryptocurrency industry
  • The possibility to develop your career within BlockTech.
  • A versatile working environment, no day is the same
  • A competitive base salary
  • A generous profit sharing pool based on company- and individual performance
  • Enjoy a delicious catered lunch at the office, Friday drinks, company events, gym reimbursement and much more!

If you think you have the excellent technical skills needed to join this exciting team, get in touch!

Contact us!

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