OneAPPS Consulting (www.oneapps.com) is a Technology consulting firm based out of London and offices across Europe. We are working on various projects involving diverse, multicultural teams with clients across the Europe. We are an invaluable partner and our teams have collaborated to support the growth of our clients. With more than 7 locations worldwide we help our clients to deliver their projects smoothly. We look forward to getting to know you and working with you.
Location: Wrexham, UK
Hybrid 2/3 Days/Week from Office.
We are looking for a skilled DAML Developer with strong expertise in building applications on the Canton Network, the privacy-enabled, asset-centric distributed ledger platform. The ideal candidate will possess hands on experience in DAML smart contract development, deep understanding of DLT principles, and the ability to design and implement secure, performant, and compliant solutions for regulated financial environments.
Key Responsibilities
* DAML Development & Smart Contract Engineering
o Design, develop, and maintain DAML smart contracts on the Canton Network.
o Implement data models, templates, choices, and authorization logic following DAML best practices.
o Ensure ledger models comply with privacy, confidentiality, and multi party workflow requirements.
o Develop and configure components of the Canton network topology, including domains, participants, sequencers, and mediator nodes.
o Implement integration layers between DAML applications and enterprise systems (APIs, event streams, data stores).
o Work with Canton SDK and associated tooling to build, deploy, and test applications.
* Functional & Technical Solutioning
o Work closely with business/functional teams to translate requirements into ledger workflows.
o Support solution architects in defining distributed application architecture and dependency graphs.
o Conduct impact assessments for ledger model changes and upgrades.
* Quality Engineering & Deployment
o Build automated test frameworks for DAML contracts (scenario tests, integration tests).
o Participate in code reviews, refactoring, and performance optimization.
o Support DevOps in building CI/CD pipelines for Canton-based applications.
* Compliance, Security & Governance
o Ensure ledger applications meet regulatory, operational, and risk controls required in financial markets.
o Apply principles of determinism, immutability, authorization, and data segregation inherent to DAML/Canton.
Required Skills & Experience
Technical Skills
* Strong hands on experience with DAML programming and smart contract lifecycle.
* Experience working with Canton Network components, including:
o Domains
o Mediators & Sequencers
o Domain topology configuration
* Expertise in distributed systems concepts: consensus, message flows, transaction finality.
* Familiarity with Python, Java, Scala, or TypeScript (for off-ledger components).
* Hands on experience with REST APIs, gRPC, message queues (Kafka), or database integration.
* Experience with Docker/Kubernetes, cloud platforms (Azure/AWS/GCP).
Soft Skills
* Ability to work with cross-functional teams: Architects, Product Owners, BA, QA.
* Strong analytical, debugging, and problem-solving ability.
* Excellent communication and documentation skills suitable for regulated environments.
Good-to-Have (Preferred)
* Experience in capital markets, clearing & settlement, post-trade workflows.
* Understanding of financial instruments (assets, collateral, positions).
* Experience using Canton-specific tooling such as canton-console, canton-daemons, and canton domain orchestration frameworks.
* Knowledge of other blockchain platforms (Ethereum, Corda, Hyperledger Fabric).
* Experience in secure application development (PKI, HSM, crypto concepts).
Education
* Bachelor’s or Master’s degree in Computer Science, Engineering, Mathematics, or related field.
* DAML certifications (Digital Asset Academy) are a plus.
If this role sounds like you, we invite you to apply. Thanks.
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