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About our client
Our customer is a leading, fully regulated US-based digital asset trading platform. They provide secure, low-latency access to cryptocurrency markets, acting as a bridge between traditional finance and the Web3 ecosystem.
About The Role
Our Senior Backend Software Engineer will be responsible for architecting, developing, and maintaining the high-performance backend services that power the core platform. Leveraging deep expertise in Java and distributed systems, you will collaborate with cross-functional teams to deliver secure, scalable solutions while exploring and integrating cutting-edge blockchain technologies.
Key Responsibilities
We offer*:
Our customer is a leading, fully regulated US-based digital asset trading platform. They provide secure, low-latency access to cryptocurrency markets, acting as a bridge between traditional finance and the Web3 ecosystem.
About The Role
Our Senior Backend Software Engineer will be responsible for architecting, developing, and maintaining the high-performance backend services that power the core platform. Leveraging deep expertise in Java and distributed systems, you will collaborate with cross-functional teams to deliver secure, scalable solutions while exploring and integrating cutting-edge blockchain technologies.
Key Responsibilities
- Design, build, and maintain high-throughput backend services and APIs in Java.
- Drive architecture discussions to enhance system scalability, resiliency, and performance.
- Prioritize security and compliance as core aspects of service design and delivery.
- Collaborate with product, security, DevOps, and compliance teams on cross-functional initiatives.
- Mentor engineers and lead by example with high engineering standards and best practices.
- Research and prototype blockchain integration opportunities (e.g., node syncing, client tooling).
- Advocate for maintainable, modern infrastructure informed by industry best practices.
- Bachelor’s or Master’s degree in Computer Science or related field.
- At least 8 years of professional software engineering experience without a degree in Computer Science-related field , or at least 6 with an advanced degree in a different field.
- Strong communication skill and collaboration skills, motivation, problem solving mind set.
- Strong proficiency in Java and experience with modern frameworks and distributed systems.
- Experience with performance optimization (e.g., low-latency systems, microservices).
- Knowledge of security and compliance best practices in financial or regulated contexts.
- Interest or hands-on experience in blockchain, crypto infrastructure, or decentralized systems.
- Strong collaboration and mentorship skills in a fast-moving, cross-functional environment.
- Hands-on experience with BDs, async messaging (Kafka, RabbitMQ, etc.), CI/CD stack
- LATAM: 11:00 – 20:00
- Colombia: 09:00 – 18:00
- Europe (EET): 12:00 – 21:00
- Europe (CET): 11:00 – 20:00
We offer*:
- Flexible working format - remote, office-based or flexible
- A competitive salary and good compensation package
- Personalized career growth
- Professional development tools (mentorship program, tech talks and trainings, centers of excellence, and more)
- Active tech communities with regular knowledge sharing
- Education reimbursement
- Memorable anniversary presents
- Corporate events and team buildings
- Other location-specific benefits
- not applicable for freelancers
Key Skills
Ranked by relevance
blockchain
java
cryptocurrency
rabbitmq
devops
kafka
cicd
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- Posted
- May 06, 2026
- Type
- Full-time
- Level
- Mid-Senior
- Location
- Lisbon Metropolitan Area
- Company
- N-iX
Industries
Construction
Software Development
IT Services
IT Consulting
Categories
Engineering
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