Long-term B2B Contract | Remote within EU Role
Overview We are looking for an experienced Java Tech Lead / Lead
Backend Engineer who combines strong hands-on backend engineering
with technical leadership and architectural ownership. You will
work on cloud-native, distributed systems, taking ownership of
complex technical problems from design through implementation and
production. This is a hands-on engineering role: you will actively
develop software while helping shape architecture, engineering
standards and technical direction across the team. The environment
is best suited to someone who enjoys solving difficult backend and
platform problems, working across team boundaries, mentoring other
engineers and taking responsibility for the long-term quality,
scalability and reliability of the systems they build. Key
Responsibilities: Design, develop and evolve backend services using
Java and modern JVM technologies Remain hands-on with
implementation, testing, debugging and production problem-solving
Own technical design and architecture decisions for complex backend
and distributed systems Design scalable microservices, APIs and
event-driven architectures Contribute to services, automation or
data workflows using Python Build and operate applications in AWS
and Kubernetes-based environments Take ownership of systems
throughout their lifecycle, from initial design through production
operation Identify performance, scalability, reliability and
maintainability improvements Establish strong engineering practices
around automated testing, integration testing and code quality
Review code and technical designs and provide clear technical
guidance to other engineers Mentor engineers and help raise
engineering standards across the team Collaborate closely with
Product, Platform and other engineering teams Communicate technical
decisions, trade-offs and risks clearly to technical and
non-technical stakeholders Contribute to CI/CD, observability and




production-readiness practices Requirements: 5+ years of
professional software engineering experience Excellent, recent
hands-on Java development experience Strong experience with Spring
/ Spring Boot Professional production experience with Python Strong
experience designing microservices and distributed systems
Experience with event-driven architectures and technologies such as
Kafka Strong commercial experience with AWS Hands-on experience
with Kubernetes and Docker Experience designing and integrating
REST APIs Strong knowledge of relational databases and SQL
Experience with CI/CD and modern software delivery practices Strong
automated testing practices, including unit and integration testing
Proven experience making meaningful architecture and system-design
decisions Experience mentoring engineers, conducting code/design
reviews or acting as a technical lead Experience owning complex
features or services end-to-end, including their operation in
production Strong communication skills and confidence working
across teams and with stakeholders Fluent English (C1+) Nice to
have: Experience with Azure alongside AWS Experience building or
integrating AI-enabled products Knowledge of analytics,
data-processing or event-driven systems Experience working in an
international, distributed engineering environment Previous
experience supporting several engineering teams or product areas
What's on Offer: Long-term B2B engagement Hands-on role with
genuine influence over technical direction Opportunity to work on
AI-powered systems used internationally Collaboration with
experienced, multidisciplinary engineering teams More than 20 days
of paid time off Apple equipment Training and
professional-development budget Diversity and Inclusion Commitment
We are dedicated to creating and sustaining an inclusive,
respectful workplace for all -regardless of gender, ethnicity, or
background. We actively encourage applicants from all identities
and experience levels to apply and bring your authentic self to our
fast-paced, supportive team.

📌 Lead Backend Engineer (Java, Python & AWS) (Cataluña)
🏢 Salve.Inno Consulting
📍 Cataluña