Java Software Engineer – Contract

TwinStream

. Develop components of a cross-domain security system within an agile development team .

Posted 10/26/2026contractRemote • United KingdomMid-LevelSenior💰 £500 - £600 per dayWebsite

Core Competencies

Role fit

Core Competencies

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Demonstrates expertise in software development with a focus on Java, agile methodologies, and continuous delivery practices. Proficient in building and deploying high-quality code while collaborating effectively within cross-functional teams.

Highest-signal resume keywords

Java DevelopmentAgile MethodologiesTest-Driven Development (TDD)Continuous DeliveryDevOps Practices

ATS Keywords

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Applicant Tracking System Keywords

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Hard Skills

Software DevelopmentCode QualityUnit TestingAcceptance TestingPerformance TestingRequirements AnalysisSoftware DesignCodingTroubleshootingDeployment Pipelines

Soft Skills

CollaborationProblem SolvingOpen CommunicationPositive Attitude

Tools & Technologies

Spring BootAWSDockerKubernetesGitJenkinsTerraformAnsiblePostgresMongoDB

Certifications & Qualifications

Eligibility for BPSS Clearance

Industry Keywords

Agile DevelopmentContinuous IntegrationPair ProgrammingThird-Line SupportUK Government Residency Requirements

Tech Stack

Tools & technologies

AnsibleAWSDockerDynamoDBJavaJavaScriptJenkinsKubernetesLinuxMongoDBOraclePostgresPythonRabbitMQRDBMSSpringSpring BootSpringBootTerraformGo

About the role

Key responsibilities & impact

Develop components of a cross-domain security system within an agile development team
Understand high-level requirements and collaborate to find solutions
Investigate technologies and understand their applicability
Participate in the full software development lifecycle, including requirements understanding, software design, coding, testing, delivery, and support
Develop high-quality code
Solve deeply technical issues
Build unit, acceptance, and performance tests
Build deployment code and pipelines in consultation with DevOps specialists
Analyse and resolve third-line support issues
Collaborate on code development and review colleagues’ work
Participate in estimating and planning
Perform other reasonable duties relevant to skills and experience

Requirements

What you’ll need

Experience developing software using core and/or related technologies
Experience with agile working practices
Agile development mindset
Experience with TDD
Experience with BDD
Experience with continuous delivery
Experience with DevOps
Experience with pair programming
Experience with estimating and planning
Java as the primary development language
Exposure to Python, JavaScript, Golang, and Bash scripting useful
Experience with Spring Boot, AWS (S3, Fargate, Lambda, SQS/SNS), RDBMS (Postgres, Oracle), JPA, MongoDB, DynamoDB, REST, RabbitMQ, Docker, Linux, Terraform, Ansible, Jenkins, Git/Bitbucket, GitLab, and Kubernetes
Eligibility for BPSS clearance
Must meet UK Government residency and right-to-work requirements associated with the required clearance level
Open, honest, and positive attitude

Benefits

Comp & perks

3-month rolling contract outside of IR35
Remote work arrangement
Potential travel to the Bristol office in the future
Support for adjustments during the recruitment process