Senior Developer (Enterprise Modernisation, Platform and Cloud)

Most modernization efforts fail because they focus solely on the technology. At EMPC, we do things differently. We solve some of the hardest modernization challenges organizations face—from legacy and mainframe transformation to cloud native development, platform engineering, and developer experience. We don’t just upgrade technology; we evolve architectures, processes, and engineering cultures to help organizations become evergreen and ready for inevitable change.

We combine strategic advisory thinking with deep delivery expertise to transform large, complex, and business-critical technology estates (including monoliths, mainframes, and fragmented cloud environments) into scalable, continuous-improvement landscapes.

We help clients move away from fragile, hard-to-change systems. By prioritizing measurable business value and delivering in shorter cycles than our competitors, we ensure our clients can adopt the state-of-the-art quickly, improve how their teams build and run software, and drive long-term, sustained value.

As a Senior Software Developer, you will collaborate with Business and Quality Analysts, Designers, Project Managers and more to design software solutions that will create meaningful change for our clients. They listen thoughtfully to understand the context of a business problem and write clean and iterative code to deliver a powerful end result whilst consistently advocating for better engineering practices. By balancing strong opinions with a willingness to find the right answer, Senior Software Developers bring integrity to technology, ensuring all voices are heard.

For a team to thrive, it needs collaboration and room for healthy, respectful debate. In this role, you will be the technologist who cultivates this environment while driving teams toward delivering on an aspirational tech vision and acting as mentors for more junior-level consultants. You will leverage deep technical knowledge to solve complex business problems and proactively assess your team’s health, code quality and nonfunctional requirements.

• You will learn and adopt best practices like writing clean and reusable code using TDD, pair programming and design patterns.
• You will contribute to assessing legacy systems, including architecture, codebase health, delivery constraints, operational risk and dependencies, and help identify pragmatic modernisation options aligned to agreed business goals.
• You will help delivery teams reduce legacy risk by improving testability, deployment safety, observability and recovery practices before and during migration.
• You will drive the AI-first software delivery strategy by strategically integrating and utilizing AI tools throughout the development lifecycle to enhance productivity, ensure high-quality code and create capacity for more complex and creative problem-solving.
• You will create large-scale distributed systems out of microservices.
• You will apply the latest technology thinking from our Technology Radar to solve client problems.
• You will efficiently utilize DevSecOps tools and practices to build and deploy software, advocating devops culture and shifting security left in development.
• You will oversee or take part in the entire cycle of software consulting and delivery from ideation to deployment and everything in between.
• You will act as a mentor for less-experienced peers through both your technical knowledge and leadership skills.  

Technical skills

• You have experience using one or more development languages (Java, Kotlin, JavaScript, TypeScript, Ruby, C#, etc.) with experience in object-oriented programming.
• Ability to contribute to decisions on when to refactor, replatform, re-architect or replace, and to explain trade-offs clearly to engineers, product partners and delivery stakeholders.
• You will support technical decision-making by relating modernisation choices to business goals, delivery risk and customer value.
• You can skillfully write high-quality, well-tested code and you are comfortable with Object-Oriented programming.
• You bring an open and thoughtful mindset toward AI, proactively integrating AI-assisted tools and methods into technical workflows to boost productivity and explore innovative solutions.
• You are comfortable with Agile methodologies, such as Extreme Programming (XP), Scrum and/or Kanban.
• Bonus points if you have working knowledge of cloud technology such as AWS, Azure, Kubernetes and Docker.

Professional skills

• You enjoy influencing others and always advocate for technical excellence while being open to change when needed. 
• Presence in the external tech community: you willingly share your expertise with others via speaking engagements, contributions to open source, blogs and more.
• You are resilient in ambiguous situations and can approach challenges from multiple perspectives.

There is no one-size-fits-all career path at Thoughtworks: However you want to develop your career is entirely up to you. But we also balance autonomy with the strength of our cultivation culture. This means your career is supported by interactive tools, numerous development programs and teammates who want to help you grow. We see value in helping each other be our best and that extends to empowering our employees in their career journeys.

You may be expected to work out of our Thoughtworks office or at our client's office location for all five working days of the week, depending on business or clients’ needs.

Thoughtworks is a global technology consultancy that integrates strategy, design and engineering to drive digital innovation. For 30+ years, our clients have trusted our autonomous teams to build solutions that look past the obvious. Here, computer science grads come together with seasoned technologists, self-taught developers, midlife career changers and more to learn from and challenge each other. Career journeys flourish with the strength of our cultivation culture, which has won numerous awards around the world.
Join Thoughtworks and thrive. Together, our extra curiosity, innovation, passion and dedication overcomes ordinary.

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