Java Software Engineer (Contract Outside of IR35)
Quick Summary
Understand high-level
About Us
In 2019, the founders were working as engineers solving complex cross-domain problems within government organisations.
TwinStream was formed to bring together their collective expertise and experience into a single business, focused on delivering technical excellence and high-quality service to clients.
Since then, the company has grown to over 100 team members across the UK, with colleagues working both on-site with clients, hybrid and remotely from home.
Details:
Salary: £450 - £550 Outside of IR35
Location: Remote
About the role:
TwinStream software engineers (Java) develop components of a cross-domain security system within an agile development team. They are involved in the entire software development lifecycle, which includes understanding the need for change, software design, coding, testing, delivery, and support. A TwinStream software engineer is not just a coder; they comprehend the business and domain challenges and utilize their technical skills to address those issues.
Responsibilities:
- Understand high-level requirements and collaborate to find solutions
- Investigate technologies to gain a deep understanding of their applicability
- Develop high-quality code
- Problem-solving deeply technical issues
- Build tests at all stages of development from, unit tests to acceptance & performance tests
- Build deployment code and pipelines, consulting with DevOps specialists
- Analyse and resolve issues from 3rd line support
- Collaborate in code development and review colleagues’ work
- Participate in indicative estimating & planning
- Any other reasonable duties relevant to skills and experience.
Key Skills
- Experience in developing software using our core and/or related technologies
- An agile development mindset
- Experience in agile working practices including
- TDD
- BDD
- Continuous delivery
- DevOps
- Pair programming
- Estimating & Planning
- Open, honest & positive attitude
Core Technologies
Java is the primary development language. Some exposure to other languages is useful, including Python, JavaScript, Golang, Bash Scripting, although these languages are used only occasionally.
The following technologies are used extensively in our solutions:
- Java
- Spring Boot
- AWS – S3, Fargate, Lambda, SQS / SNS
- RDBMS (Postgres, Oracle) & JPA
- Mongo DB
- DynamoDB
- REST
- Rabbit MQ
- Docker
- Linux
- Terraform
- Ansible
- Jenkins
- GIT/Bitbucket
- GitLab
- Kubernetes
Desirable Skills
- OpenShift
- Docker Compose/Swarm
- Terraform
- Ansible
- Python
Diversity & Inclusion
We’re committed to building a diverse and inclusive workplace. We welcome applications from people of all backgrounds, experiences, and identities.
If you need any adjustments during the recruitment process, please let us know. We’re here to support you
Further Information:
To meet the security requirements of certain clients and industries we serve, any job offer will be contingent upon the successful completion of a security screening process.
Location & Eligibility
Listing Details
- Posted
- May 21, 2026
- First seen
- May 21, 2026
- Last seen
- May 22, 2026
Posting Health
- Days active
- 0
- Repost count
- 0
- Trust Level
- 67%
- Scored at
- May 21, 2026
Signal breakdown
TwinStream develops scalable, resilient systems to solve complex cross-domain problems in cybersecurity.
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