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Senior Software Developers 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. Senior Developers are the technologists who cultivate 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.
Job responsibilities
- You will work in collaborative, value-driven teams to build innovative customer experiences for our clients.
- You will propose and implement solutions to address scaling & design challenges.
- You will oversee or participate in the software development cycle of a scalable product.
- You will implement changes/features as part of a Continuous Evolution process.
- Responsible for application/environment health, continuous improvement, and a continuous optimisation approach.
- Addresses, in a timely manner, software issues identified via various channels, quickly able to diagnose and qualify production incidents, identify and address root causes, find workarounds etc.
- Work on large-scale distributed systems using microservices, with several external integrations in a fast-paced environment.
- You will act as a mentor for less-experienced peers through both your technical knowledge and leadership skills.
- You will use continuous delivery practices to deliver high-quality software as well as value to end customers as early as possible.
- Availability for flexible working hours, if needed.
Job qualifications
Technical Skills
- You have a strong knowledge and understanding of Java or C#.
- Familiarity with Relational Databases and Event-driven messaging.
- You can skilfully write high-quality, well-tested code, and you are comfortable with Object-Oriented programming.
- You are at ease using Agile methods like Extreme Programming (XP), Scrum, and/or Kanban. Comfortable with pair programming as a daily practice.
- You have at least limited working experience with AWS or other cloud-based solutions and CI/CD (GitLab or others).
- Your experience is relevant to the responsibilities mentioned above.
Professional Skills
- You enjoy influencing others and always advocate for technical excellence while being open to change when needed.
- You're resilient in ambiguous situations and can approach challenges from multiple perspectives.
- You possess strong communication and teamwork skills, and you are dedicated to finding the most suitable solutions for any given scenario.
- You genuinely enjoy interacting with teammates from across the business and have a knack for communicating technical concepts to non-technical audiences.
Other things to know
Learning & Development
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.
Job Details
Country: Romania
City: Cluj
Date Posted: 11-26-2025
Industry: Information Technology
Employment Type: Employee
About Thoughtworks
Thoughtworks is a dynamic and inclusive community of bright and supportive colleagues who are revolutionizing tech. As a leading technology consultancy, we’re pushing boundaries through our purposeful and impactful work. For 30+ years, we’ve delivered extraordinary impact together with our clients by helping them solve complex business problems with technology as the differentiator. Bring your brilliant expertise and commitment for continuous learning to Thoughtworks. Together, let’s be extraordinary.
Thanks for your interest in joining Thoughtworks. A member of our Recruiting team will review your application as soon as possible.
In the meantime, check out our Consultant Life page to learn more about the extraordinary impact Thoughtworkers make on clients, the tech industry and each other.
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