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TRCI-26-06050
Backend Engineer / Solution Designer (Java/Kotlin, Digital Assets/Blockchain)
Contract backend engineer with 5+ years’ experience designing and building enterprise-grade Java/Kotlin microservices and REST APIs in Agile environments. The role focuses on developing scalable, resilient backend services for digital asset products, integrating with blockchain networks and custody/wallet providers, and contributing to secure, compliant, highly available systems. Strong stakeholder management, analytical problem-solving, and solid understanding of distributed systems, API design, and scalability patterns are required.
Position summary
- Location
- United Kingdom
- Workplace
- Hybrid
- Employment
- Contract
- Experience
- Minimum 5 years and Maximum 7 years
Role overview
Why This Role Matters.
Contract backend engineer with 5+ years’ experience designing and building enterprise-grade Java/Kotlin microservices and REST APIs in Agile environments. The role focuses on developing scalable, resilient backend services for digital asset products, integrating with blockchain networks and custody/wallet providers, and contributing to secure, compliant, highly available systems. Strong stakeholder management, analytical problem-solving, and solid understanding of distributed systems, API design, and scalability patterns are required.
Your Impact
Deliver Enterprise Value
Help organisations solve complex business problems through modern technology, consulting expertise and measurable outcomes.
Collaboration
Work Across Teams
Collaborate with consultants, architects, engineers and client stakeholders throughout the project lifecycle.
Growth
Learn Continuously
Gain exposure to enterprise technologies, certifications, mentoring and real-world project experience.
Career Path
Grow With Ubique
Build a long-term consulting career with opportunities to take on greater responsibility and leadership over time.
Responsibilities
What You'll Be Doing.
Every role at Ubique contributes directly to solving meaningful business challenges for our clients.
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Strong stakeholder management experience across business and technology domains
03
Strong analytical and problem-solving capabilities
04
Experience working in Agile organizations
05
Bachelor's degree in Computer Engineering, Software Engineering, or a related discipline
06
Fluent English communication skills (C1 level or above)
07
Java (preferred)
08
Microservices Architecture
09
Event-driven architectures
10
RabbitMQ or similar messaging technologies
11
SQL and NoSQL databases
12
Containerization (Docker)
Technology stack
Tools & Technologies.
The platforms and technologies you'll use to build modern, enterprise-grade solutions.
01
Java
Required
02
Kotlin
Required
03
Spring Boot
Required
04
REST
Required
05
Microservices
Required
06
Event-driven architecture
Required
07
Kafka
Required
08
RabbitMQ
Required
09
Messaging
Required
10
SQL
Required
11
NoSQL
Required
12
Docker
Required
13
Kubernetes
Required
14
CI/CD
Required
15
Git
Required
16
Distributed systems
Required
17
System integration
Required
18
API design
Required
19
Scalability
Required
20
High availability
Required
Requirements
Skills & Experience.
We value curiosity, collaboration and continuous learning. If you don't meet every requirement but believe you can make an impact, we'd still love to hear from you.
Essential
Required Qualifications
Java
Kotlin
Spring Boot
REST APIs
Microservices architecture
Agile (Scrum/Kanban) ways of working
Stakeholder management across business and technology
Analytical and problem-solving skills
API design fundamentals
Distributed systems fundamentals
System integration experience/knowledge
English fluency (C1+)
Preferred
Nice to Have
Event-driven architecture
Kafka
RabbitMQ (or similar messaging)
SQL databases
NoSQL databases
Docker
Kubernetes
CI/CD pipelines
Git-based workflows
Secure coding best practices
Operational readiness / production support
Compliance/audit/security requirements exposure
Blockchain integration concepts (smart contract interactions, mint/burn, transfers, wallet management)
What you'll gain
More Than Just A Job.
We're committed to helping every team member grow professionally, personally and technically while working on meaningful projects.
Global Exposure
Collaborate with international clients and multicultural teams on enterprise programmes.
Continuous Learning
Expand your expertise through mentoring, certifications and hands-on project experience.
Career Growth
Take ownership, develop leadership skills and grow your consulting career over time.
Flexible Working
Hybrid and remote collaboration designed around trust and delivering exceptional outcomes.
People First
Join a supportive culture where collaboration, respect and long-term relationships come first.
Enterprise Projects
Work on meaningful technology initiatives for leading organisations across industries.
Apply
Apply for Backend Engineer / Solution Designer (Java/Kotlin, Digital Assets/Blockchain)
One page, about two minutes. We only ask for what we actually need to have a first conversation.