Backend Engineer

• Develop and maintain Java-based software components
• Implement new functionality and enhancements across the NIRIS platform
• Upgrade and modernize Java modules to supported LTS versions
• Develop and maintain REST integrations and data exchange interfaces
• Support interoperability with external systems and NATO standards
• Improve logging, monitoring, and troubleshooting capabilities
• Contribute to unit testing and automated testing activities
• Work with CI/CD pipelines and DevOps tooling
• Participate in sprint planning, reviews, and technical discussions
• Produce technical documentation and implementation artefacts

Senior Full Stack Java Developer – Security Clearance

• Contribute to all phases of the development lifecycle
• Write well designed, efficient code
• Ensure designs are in compliance with specifications
• Prepare and produce releases of software components
• Mentor and train team members

Mid-Level Core Java Engineer

• designing, developing, and enhancing business-critical applications across a modern technology stack including Java 17–21 and Spring Boot
• help deliver high-quality software solutions that support operational planning, execution, and shipment visibility across the transport lifecycle
• contribute throughout the full development lifecycle, from requirements analysis and technical design through to implementation, testing, deployment, and support
• influence the future technical direction of a large-scale SaaS transformation programme

Senior Backend .NET Developer

• Design, develop, and enhance business-critical applications across a modern technology stack
• Contribute to the ongoing evolution of the TMS platform
• Collaborate with a cross-functional engineering team
• Deliver high-quality software solutions that support operational planning, execution, and shipment visibility
• Influence the future technical direction of a large-scale SaaS transformation programme

Senior Software Engineer – Java

• Design, develop, test, and maintain scalable enterprise web applications.
• Build and support microservices-based solutions using Java and Spring technologies.
• Develop RESTful APIs and web services for integration with internal and external systems.
• Collaborate with business stakeholders, architects, and cross-functional teams to gather and refine requirements.
• Participate in architecture discussions, code reviews, and technical design sessions.
• Develop and maintain frontend applications using ReactJS and related JavaScript technologies.
• Implement CI/CD pipelines and deployment automation processes.
• Troubleshoot production issues and perform root cause analysis.
• Ensure adherence to coding standards, security best practices, and performance optimisation techniques.
• Participate in Agile/Scrum ceremonies, including sprint planning, stand-ups, retrospectives, and reviews.
• Engage directly with onsite clients and stakeholders to provide technical consultation and delivery support.

Full Stack Java Developer

• Help design, shape and deliver a leading FinTech product and engineering team
• Contribute to the team’s work with high-quality, well-tested and scalable code
• Develop high-class back-end code in a microservice architecture that builds the foundation of all Selina’s tech products
• Support the development of the software stack (e.g. code reviews, unit tests, CI) and documentation
• Work closely with our team to understand our customers’ needs

Mid Backend Engineer

• Design, develop, integrate, validate, and operate new projects, features, bug fixes, and other improvements.
• Architect and implement backend solutions with Python (FastAPI, asyncio), Databases (PostgreSQL, MongoDB), Cache layers (Redis, Valkey), Message Brokers (Kafka, Redis Queues, Amazon SQS), and transport protocols (Rest APIs, Websockets, SSE, WebRTC with LiveKit).
• Work with teams directly: Mobile (Swift, Flutter), Web (React, Javascript), Data Analyst, Product, Designers on integrating new solutions.
• Develop well-architected, clean, maintainable, and testable code following clean architecture principles and ADRs agreed within the company.
• Write unit, integration, e2e tests to comprehensively own the quality of solutions you build, ensure reliability, and support continuous integration and deployment.
• Utilize Terraform for Infrastructure-as-Code management, Docker for containerization, and AWS ECS or EKS for deployments.
• Work with AWS infrastructure and apply DevOps best practices to improve scalability and reliability.
• Continuously improve processes and automate incoming requests from other teams by contributing to internal systems, automation scripts, shared skills, MCP, context, and script libraries.
• Work closely with AI experts to build data-driven approaches to language learning.

Senior Backend Engineer

• Build solutions for scientists to automate their acquisition and analysis
• Lead delivery of high quality enterprise scale software solutions
• Design, implement, and high-performance C++ applications
• Develop low-latency, high-performance algorithms or control logic for custom devices (e.g., motion control systems, sensors, actuators).
• Integrate hardware control systems with real-time applications or larger software platforms.
• Debug and troubleshoot hardware/software integration issues at the system and signal level.
• Collaborate with hardware, firmware, and software engineers to align software behavior with hardware specs.
• Write and maintain clear, well-documented, and testable code.
• Effectively communicate and collaborate with interdisciplinary teams, including software engineering, product management, bioware, and hardware ensuring seamless integration and alignment of goals across all departments

Senior Software Engineer, C++ Hardware Integrations

• Build solutions for scientists to automate their acquisition and analysis
• Lead delivery of high-quality enterprise scale software solutions
• Design, implement, and high-performance C++ applications
• Devise, implement, and test innovative image processing/analysis/machine learning solutions to address challenges of nano scale microscopy and deliver value to the customer
• Debug and troubleshoot hardware/software integration issues at the system and signal level.
• Collaborate with hardware, firmware, and software engineers to align software behavior with hardware specs.
• Write and maintain clear, well-documented, and testable code.
• Effectively communicate and collaborate with interdisciplinary teams, including software engineering, product management, bioware, chemistry, and hardware ensuring seamless integration and alignment of goals across all departments

Senior Software Engineer, C++, Image Processing, ML

• Designing, developing, and maintaining software within the CIS Oncology (ChemoCare) product suite
• Owning complex features or technical areas through design, implementation, and handover into testing and release
• Making technical decisions and escalating risks or trade-offs where needed.
• Contributing to the technical direction of the ChemoCare product suite, balancing near term delivery with longer term maintainability
• Working closely with the QA team to support effective testing, defect resolution, and overall product quality
• Ensuring code is clear, maintainable, and appropriately tested, in line with agreed development standards
• Reviewing code written by others and providing practical, constructive feedback
• Supporting and mentoring less experienced developers as part of normal team working
• Providing 3rd line support (as part of a shared team responsibility) for the ChemoCare product, including investigation and resolution of complex defects where required

Senior Developer, JavaScript, ASP.NET MVC

• Develop new in-house products
• Translate application storyboards and use cases into feasible functional applications
• Design, build, and maintain efficient, reusable, and reliable Java code
• Write clean code supported with unit testing modules
• Ensure the best possible performance, quality, scalability and responsiveness of the applications
• Document features and share knowledge within the team
• Collaborate with other team members and stakeholders
• Help maintain code quality, organization, and automatization including undertaking peer code reviews
• Perform integrations with 3rd party applications

Java Developer

• Play a role in migrating and rebuilding core architecture in Java Spring Boot
• Design and optimize technical connectors for various global channels
• Rebuild the catalog publication flow addressing technical complexities
• Collaborate on transferring complex Legacy business rules into dedicated BCP assets
• Ensure accurate Real Time synchronization of stock and price updates

Back-end Developer – Java, Spring Boot, GCP

• Lead development of features for the online shopping experience on Joybuy
• Explore, learn, design, and implement modular and scalable software components, based on your understanding and current industry trends
• Understand the business problem space, and communicate impact to technical decisions while providing high-level estimates, and breakdown of tasks for the solutions proposed
• Enable decision making to architecture, and technical challenges faced by the team and document and share best practices, maintain and enhance quality of code written
• Work onsite in London

Software Engineer, Java

• Design and build robust, scalable software solutions.
• Take ownership of key features, contribute to architectural decisions, and collaborate closely with cross-functional teams.
• Deliver high-quality applications, combining hands-on development with opportunities to influence best practices and mentor junior engineers.

Senior .Net Developer

• Lead on extending, improving & maintaining an e-Receipts data pipeline that extracts purchase data from emails and transforms into structured data.
• Support on creating new & supporting existing data feeds for commercial partners.

• **Overview**** Methods is looking for an experienced Technical Architect with a strong Java and Spring Boot background to support customer-specific delivery workstreams and wider digital transformation projects.
• The role requires hands-on architecture experience across modern service design, integration, cloud-hosted platforms and delivery governance. The successful candidate will help shape robust, maintainable and scalable services, working closely with engineering teams, delivery leads, product stakeholders and enterprise architecture functions to ensure technical decisions align with programme outcomes, GDS expectations and wider organisational standards.

Technical Architect

• Develop and maintain Java-based applications ensuring high performance and security standards.
• Work collaboratively with cross-functional teams to gather requirements and deliver solutions aligned with project goals.
• Participate in code reviews, testing, and deployment.
• Ensure compliance with security protocols and standards relevant to DV cleared projects.
• Provide technical expertise and troubleshooting support.

• Develop and maintain DNS architectures including zone management and DNSSEC.
• Monitor, troubleshoot, and resolve DNS issues to ensure uninterrupted service.
• Collaborate with cross-functional teams to integrate DNS into new applications and services.
• Keep up to date with industry trends and best practices in DNS and networking.

Software Engineer, Perl

• Design and build scalable fintech platforms and backend components using Java.
• Refactor and improve code quality, maintainability, and system design.
• Develop comprehensive automated test suites and contribute to a strong testing culture.
• Automate repetitive processes and improve engineering efficiency.
• Collaborate closely with teammates through pair programming and knowledge sharing.
• Contribute across different areas of the platform with an 'our code' mindset.

• Help oversee the next phase of development of REST APIs.
• Provide a holistic view to the product offering.
• Work with the dev team to design efficient and future-proof features.
• Ensure systems are scalable for varying client sizes.
• Leverage AI-assisted development tooling to improve code quality.

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