Senior Backend Engineer
Tangany GmbH is a regulated German digital-asset custodian offering an API-first, white-label custody platform. It serves institutions, brokers, fintechs, corporations, and funds and asset managers with custody, compliance, accounting, staking, tokenization, NFT, and smart-contract custody capabilities.
Funding history
Projects
About Tangany GmbH
Tangany GmbH provides the cloud-based Tangany Suite, a white-label digital-asset custody solution regulated by German BaFin. Its APIs enable clients to create and manage crypto custody wallets, submit blockchain transactions, manage customer KYC data, and settle transactions on a virtual ledger. The company also offers crypto accounting, customer compliance, staking, and custody support for tokenized assets, NFTs, and smart contracts. Its target clients include financial institutions, brokers, fintechs, corporations, and funds and asset managers seeking to offer digital-asset services to their customers.
Skills
Candidate Availability
Required and preferred rules are kept separate and reflect the wording in the original posting.
About the Role
You will enhance and maintain a foundational custody platform, provide technical expertise for product and feature design, and make independent decisions about architecture, software design, and implementation. You will develop scalable and secure backend services and APIs with Node.js and TypeScript, maintain Microsoft Azure CI/CD pipelines, oversee testing and releases, and establish standards for code quality, automated testing, deployment, diagnostics, and monitoring.
Requirements
- Proven experience designing and developing REST APIs with TypeScript and Node.js
- Experience with NestJS is advantageous
- Experience in the Microsoft Azure ecosystem, including Azure Functions and Azure DevOps CI/CD pipelines, is preferred
- Knowledge of MSSQL, PostgreSQL, CosmosDB, and/or MongoDB
- In-depth knowledge of web architectures, API design, and OAuth2-based authentication methods
- Experience with software security and automated testing is preferred
- Experience with low-code platforms such as Retool is a plus
- Interest in blockchain technology is essential
- Technical blockchain knowledge is advantageous
- Fluency in English at least B2 level
- German language skills are a plus
Responsibilities
- Collaborate with developers to enhance and maintain the foundational custody platform
- Provide technical expertise during the design of new products and features
- Design APIs
- Make independent decisions about architecture, software design, and implementation
- Develop scalable and secure backend services and APIs using Node.js and TypeScript
- Implement and maintain Microsoft Azure CI/CD pipelines
- Test, roll out, and launch product increments
- Develop and maintain standards for code quality, clean code, automated testing, deployment, diagnostics, and monitoring
Benefits
- 30 days of vacation plus half-days off on December 24 and December 31
- Additional unpaid leave
- Two weeks of extra paid vacation for new parents
- Work from home or another location within Germany
- Workation for up to 40 days per year
- Flexible working hours
- Free yoga classes
- Team events
- Annual salary
- Choice of Mac or Windows hardware
- Monthly meal allowance
- Monthly mobility budget
- Monthly non-cash benefits budget for streaming, fitness, shopping and more