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BlockTech

Decentralized proof-of-assets liquidity for derivatives trading

Junior Software Engineer

Full-TimeUpdated on 10/14/2026
No salary listed
Junior
Amsterdam, Netherlands
In Person
Software EngineeringBackend Engineering

About the job

Requirements
  • At least 1 year of commercial work experience as a software engineer.
  • Familiarity with Grafana and PostgreSQL.
  • Ability to follow work through to completion.
  • Ability to work confidently on completely new components.
  • High level of responsibility and ownership.
  • Good written and verbal communication skills in English.
Responsibilities
  • Maintain and evolve position, trade, and profit-and-loss systems to ensure accuracy across venues.
  • Design services that handle real-time exchange flow with the throughput and reliability required for quoting and hedging.
  • Operate public and private data pipelines that bring market prices, account state, and trade events into systems in real time.
  • Deliver exchange and prime-broker integrations end to end, including protocol, account model, settlement, reconciliation, and surveillance.
  • Own systems describing tradable instruments, including lifecycle, expiry, margin, requests for quotes, and fast-path quoting, where correctness and latency matter.
  • Build detection and repair flows that identify position discrepancies and correct them automatically.
  • Design and refine gamma and delta hedging systems used by trading strategies.
  • Provide data for internal stakeholders and regulators, including profit-and-loss breakdowns, trade surveillance, treasury accounting, and compliance.

About the company

BlockTech builds a platform for decentralized proof of asset ownership and trading derivatives, enabling faster and more transparent liquidity. It works by using advanced software, mathematical models, and a global network to verify asset proofs and quickly match orders in derivatives markets. The company differentiates itself through its emphasis on decentralization of asset proofs, speed, and precision across a wide network compared to traditional centralized providers. Its goal is to accelerate decentralization of asset proofs and transform derivatives trading by delivering faster, more reliable liquidity.

Company Size

51-200

Company Stage

N/A

Total Funding

N/A

Headquarters

Amsterdam, Netherlands

Founded

2017

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Simplify's Take

What believers are saying

  • August 2026 gross profit guidance rose to $12.51 billion after strong second quarter.
  • August 2026 Neighborhoods added 30,000 sellers, expanding local commerce density.
  • July 2026 ChatGPT and Claude integrations target seller discovery and conversion.

What critics are saying

  • February 2026 layoffs cut 4,000 workers, exposing restructuring execution risk.
  • July 2026 California and 46 states settled Cash App fraud claims for $45 million.
  • Persistent fraud enforcement turns Cash App into a liability instead of growth engine.

What makes BlockTech unique

  • Square and Cash App combine merchant software, consumer payments, and distribution.
  • June 2026 Builderbot and agentic AI now write nearly all production code changes.
  • Bitkey, open hardware patents, and bitcoin features deepen Block’s ecosystem lock-in.

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Benefits

Home Office Stipend

Phone/Internet Stipend

Relocation Assistance

Gym Membership

Meal Benefits

Company Social Events

Professional Development Budget