Senior Software Engineer (.NET C#) | Lisbon

transperfect; Lisboa; On-site; EUR 60,000 - 90,000; Full time

Job summary

TransPerfect is seeking an experienced Software Engineer to join its global TechOps team. You will develop, test, and maintain scalable backend services and APIs for web and mobile applications, collaborating with product managers, QA, and other developers across multiple locations.

The role requires 7+ years of experience in software development, strong .NET/C# skills, and familiarity with REST APIs, Docker, and cloud services. Excellent communication and teamwork are essential.

Qualifications

• Bachelor's or Master's degree in computer science, engineering, or related field.
• 7+ years of experience in software development for scalable systems.
• Extensive knowledge of DotNet C#, LINQ, MS SQL, Entity Framework.
• Experience with REST APIs and API design for extensibility.
• Experience with Agile development methodologies.
• Familiarity with Docker, Azure or AWS, and messaging systems (RabbitMQ).
• Excellent communication and collaboration skills.

Responsibilities

• Engage in all phases of application development with a focus on secure coding practices.
• Design, build, and maintain efficient, reusable code and APIs for web and mobile.
• Collaborate with cross-functional teams to translate requirements into technical solutions.
• Work with front-end developers to integrate UI with server-side logic.
• Identify bottlenecks and bugs; devise effective fixes.
• Optimize web apps for performance, scalability, and security.
• Develop automation tests in coordination with QA teams.
• Mentor junior engineers and provide technical guidance.
• Document application support and operational procedures.
• Stay updated on industry trends to improve backend infrastructure.

Skills

DotNet C#

LINQ

MS SQL

Entity Framework

GIT

SOLID principles

Clean code

REST APIs

Docker

Azure/AWS

RabbitMQ

Quartz

Agile

Education

Bachelor's or Master's degree in Computer Science/Engineering

Tools

Docker

Git

SQL Server

NoSQL

Job description

We’re looking for a 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

• 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

• 7+ 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

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