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# Technical Implementation & Software Engineer - Java/SaaS

- **Company:** Opus Resourcing Ltd
- **Location:** Cambridge, UK
- **Salary:** £45,000.0 - £60,000.0
- **Contract:** Permanent contract
- **Skills:** Java (Programming Language), Application Programming Interfaces (APIs), Amazon Web Services, Software Applications, Software Bug Management, Software as a Service, Cloud Computing, Computer Engineering, System Configuration, Continuous Delivery, Continuous Integration, Software Debugging, Software Architecture, SAP Configuration, Software Configuration Management, Software Engineering, Product Software Implementation Methods, Systems Integration, Spring-boot, Event Driven Architecture, Kubernetes, Integration Frameworks, Apache Kafka, OPUS (Software), Software Coding, Docker, Microservices
- **Published:** October 20, 2026
- **Apply:** https://www.careerboard.com/gb/en/find-jobs-in-United-Kingdom/-4D90CBF4955F0CD31E/

## About the Role

* Experience implementing, configuring, customising and supporting complex B2B SaaS software applications.
 * Strong customer-facing technical experience, including requirements gathering, software implementation and stakeholder management.
 * Experience in application support, incident management, troubleshooting, debugging and root cause analysis.
 * Hands-on Java development experience, ideally with some exposure to Spring Boot, Micronaut or similar frameworks.
 * Understanding of APIs, third-party integrations, microservices and modern software architectures.
 * Exposure to some of the following would be advantageous:
 + AWS, cloud infrastructure and CI/CD
 + Kubernetes, Docker or containerised applications
 + Kafka and event-driven architectures
 + IoT, connected devices or hardware engineering
 * Strong problem-solving and communication skills, with a proactive, adaptable approach suited to an early-stage start-up.

You don't need to tick every technical box. We're particularly interested in candidates who combine customer-facing SaaS implementation and support experience with practical Java development skills and a willingness to learn.

## Description

Technical Implementation & Software Engineer is required to join an innovative early-stage technology start-up developing cloud-based SaaS solutions within the renewable energy sector., This is a genuinely hybrid technical role combining customer-facing SaaS implementation, software configuration and customisation, complex application support and hands-on Java software development.

You'll join a small, collaborative team, working directly with customers to implement, integrate and support a sophisticated SaaS platform, while contributing to software development and product enhancements.

With approximately 60% focused on technical implementation and customer enablement and 40% on software engineering, this role is ideal for someone who enjoys solving complex technical problems, writing code and taking ownership in a fast-moving start-up environment., What you'll do as a Technical Implementation & Software Engineer

 * Implement, configure and customise a complex SaaS platform to meet customer requirements.
 * Work directly with customers and third-party partners to deliver technical implementations and integrations.
 * Troubleshoot complex application issues, manage incidents and support production environments.
 * Write, modify and test Java code, contributing to integrations, bug fixes and new functionality.
 * Collaborate with Software Engineering and Product teams on development, testing and continuous delivery.
 * Build and support APIs, third-party integrations and connected IoT devices.
 * Contribute to platform reliability, technical improvements and product development based on customer feedback.

Why this role?

 * Early-stage start-up - join a small, ambitious team where your contribution will have a genuine impact.
 * Implementation meets engineering - a unique 60/40 blend of customer-facing technical delivery and hands-on software development.
 * Modern technology - work with Java, cloud technologies, microservices, CI/CD and IoT.
 * Ownership and influence - help shape the product, solve real customer challenges and contribute to the company's growth.
 * Salary £45k-£60k + benefits + share options - an opportunity to grow alongside the business.
 * Flexible working - Cambridge hybrid preferred, with remote UK candidates considered who can travel for occasional customer meetings. (Must be eligible to work)
 * Purpose-driven technology - help accelerate the transition towards renewable energy.

This opportunity could suit a Technical Implementation Engineer, Java Software Engineer, Integration Engineer, Technical Consultant or Application Support Engineer who enjoys combining customer-facing technical delivery with hands-on software engineering.

Opus Resourcing acts as an employment agency with respect to permanent employment.