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Senior Backend Developer (C# .NET)

TransPerfect · London, United Kingdom

On-siteSeniorPosted 31 Aug 2026

What this role requires

5 requirements, read out of the advert rather than guessed from the job title:

Also mentioned, not required: GIT, REST, Agile, SQL Server, NoSQL, Docker, Azure, AWS, RabbitMQ, Quartz, English (B2). Worth having, but their absence is not what gets a CV filtered out.

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Job description

We’re looking for a Senior Software Engineer to join our global team to be responsible for the quality, development, and execution of our software products.

You will be part of a technology department that is comprised of a successful and multidisciplinary group of professionals located across the globe – Barcelona, New York, London, Manchester, Bucharest and India. If you’re ready to join a growing company and make an immediate impact, we want to hear from you!

You will be joining at TransPerfect – TechOps:

The TransPerfect TechOps team has been a vital part of the company’s success since its formation over 10 years ago – delivering technology and services that have drastically simplified the lives of our clients and colleagues – from workflow improvements for colleagues to core services that form the basis of the company’s GlobalLink platform, to creating scalable client interfaces that allow novice users to navigate complex ecosystems.

Your responsibilities and tasks will include:

Engage in all phases of application development, with a focus on coding and debugging in alignment with security standards throughout the entire lifecycle

Read the full description (28 more sections)

Design, build, and maintain efficient, reusable, and reliable code/APIs to support applications both for web and mobile

Collaborate regularly in a cross-functional team made up of product managers, quality assurance teams, designers and other developers to translate business requirements into technical solutions

Collaborate with Front-end developers to integrate user-facing elements with server-side logic

Identify bottlenecks and bugs, and devise solutions to mitigate and address issues

Optimize web applications for performance, scalability and security

Implement security best practices to safeguard sensitive data and protect against potential threats

Develop automation tests/ collaborate with automation engineers to ensure business needs are met, and allow for regression testing

Work closely with users to provide personalized software support as needed

Stay updated on emerging technologies and industry trends to continuously improve our backend infrastructure

Document application support and operational procedures

Mentor junior engineers and provide technical guidance to foster their growth and development

The minimum we’re looking for (show us what you got if you aren’t a perfect fit):

Bachelor's or Master's degree in computer science, engineering, or related field

8+ years of experience in software development, with a focus on building scalable and reliable systems

Extensive knowledge of DotNet C#, LINQ, MS SQL, Entity Framework and related technologies

Capable to use version control software such as GIT

Knowledge of SOLID principles

Knowledge of clean code practices

Experience using web service protocols such as Rest, API design for extensibility and integration

Experience debugging complex applications

Experience with Agile development project management methodologies

Database Development in SQL Server or NoSQL Databases

Some familiarity of Docker

Experience debugging complex applications

Excellent communication and collaboration skills with a proven ability to work effectively in a team environment

Azure, AWS, RabbitMQ and Quartz experience is a plus

By applying, I confirm I have read and accepted TransPerfect's Privacy Policy: https://www.transperfect.com/about/data-privacy-recruiting

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