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Senior Software Engineer (C# .NET) | London

TransPerfectLondon, Greater London, United KingdomFull-timeSalary not listed · Typical pay in United KingdomPosted Oct 5, 2026
Job description

About the role

Full text from the employer, as published on Arbeitnow, arranged into sections. Nothing added or removed.

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!

01You 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.

02Your 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

  • 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

03The 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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DGJ Insight

Our own data about this role and place, from official statistics and our live job index.

Updated Oct 24, 2026
Pay benchmark
Average wage, United Kingdom
GBP 46,511 average / year

Source: OECD Average annual wages, 2025

Cost of living · United Kingdom
100.5 vs New York = 100

UN living-cost index for United Kingdom (ICSC post adjustment 76.4), as of 1 Oct 2026.

Source: ICSC post adjustment classifications (icsc.un.org)

Work permit route
  • Skilled Worker visa: Job offer from a licensed sponsor at the required skill and salary level; English requirement
  • Health and Care Worker visa: Eligible health and social care roles with a licensed sponsor
  • Global Talent visa: Endorsement as a leader or potential leader in a listed field

Official routes: UK Visas and Immigration (GOV.UK)

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