Senior Software Engineer

About Interact

Interact is a leading provider of enterprise intranet software, connecting more than four million employees worldwide with some of the world's most recognised brands, including Levi's, Domino's, Teva Pharmaceuticals, and Technicolor.

We're a team of customer-focused problem solvers who are passionate about helping organisations communicate, connect, and engage more effectively. Continuous improvement is at the heart of everything we do, driving us to enhance our products, services, and customer experience every day.

As the workplace continues to evolve, Interact is embedding AI into every corner of the intranet experience, creating a powerful, intelligent, one-stop platform that helps employees find information faster, work more efficiently, and stay connected.

With offices in Manchester, New York, Dubai, Tulsa, Warsaw, and Manila, we support organisations across North America, EMEA, APAC, and Australia, delivering innovative solutions on a global scale.

At Interact, people come first. We're proud of the culture we've built: one that values collaboration, trust, and continuous learning. No matter where you are in your career, you'll be encouraged to share ideas, grow your skills, and make a meaningful impact alongside a team that genuinely cares about each other and our customers.

If you're an experienced software engineer who enjoys tackling complex challenges, leading by example, and building products that make a difference, we'd love to hear from you.

As a Senior Software Engineer, you'll have the opportunity to shape technical solutions, influence architectural decisions, and deliver robust, scalable software that supports millions of users.

Working closely with Product Managers, Delivery Managers, and fellow engineers, you'll be a trusted technical leader who helps drive innovation and engineering excellence across the business.

A little about you...

Relevant Work Experience

• Minimum 5+ years of professional experience in software development, with a focus on API first backends, ASP.Net and ReactJS frontends.
• Proven experience in developing engaging, scalable, high-performance, high-transactional Web UI and APIs.
• Extensive experience with C#, ASP.NET, and .NET frameworks.
• Strong proficiency in ReactJS and Node.js for frontend development.
• Experience with SQL Server, including T-SQL, Stored procedures, and SQL Transactions.
• Familiarity with Docker containers and container orchestration.
• Experience working in an Agile/Scrum development environment.
• Demonstrated ability to support the Team Leadership (Product, Delivery and Engineering Managers), as well as collaborate effectively with other teams.

Technical Skills

• Expert understanding of Object-Oriented Programming (OOP) concepts and principles.
• Deep knowledge and application of Software Engineering Design Patterns and SOLID principles.
• Proficiency in data structures, including arrays, linked lists, stacks, queues, trees, graphs, and hash tables.
• Understanding of algorithms such as sorting algorithms (quicksort, mergesort), searching algorithms (binary search), recursion, and basic algorithmic complexity (Big O notation).
• Experience with version control systems, particularly Git using Bitbucket.
• Familiarity with ElasticSearch, Redis, memory caching, distributed locking, and queue-based mechanisms.
• Knowledge of AWS cloud hosting and infrastructure management.
• Experience with CI/CD tools like TeamCity and Octopus Deploy.
• Understanding of test automation frameworks, specifically Playwright.
• Familiarity with the Atlassian Suite (Jira, Confluence) for project management and documentation.

Personal Attributes

• Strong leadership skills, with the ability to mentor and inspire team members.
• Exceptional problem-solving abilities, capable of tackling complex technical challenges.
• Excellent communication skills, both verbal and written, able to convey technical concepts to various stakeholders.
• Proactive and self-motivated, with a passion for technology and continuous learning.
• Attention to detail and a commitment to delivering high-quality, reliable software.
• Collaborative mindset, and keen to help create a positive Team environment by contributing to team dynamics.
• Strategic thinker, able to align technical design options and architectural decisions with business objectives.
• Adaptable and flexible, comfortable working in a fast-paced, dynamic environment.
• Innovative mindset, eager to explore new technologies and drive improvements.

About the role...

Technical Leadership

• Design and develop high-quality software solutions using our tech stack, including C#, ASP.NET, ReactJS, Node.js, and SQL Server.
• Lead and participate in architectural discussions and decision-making processes to shape the future of our applications.
• Implement and enforce best practices in software development, including SOLID principles and design patterns.
• Optimize application performance, ensuring scalability and reliability for high-volume queries and transactions.
• Conduct code reviews (face-to-face or via pull requests), providing constructive feedback to improve code quality and maintain coding standards.
• Mentor and guide junior and mid-level engineers, fostering professional growth and knowledge sharing.
• Collaborate closely with other teams, including UX/UI Designers, Test Automation Engineers, and DevOps, to deliver cohesive and user-centric solutions.
• Develop and maintain unit and automated tests using Playwright to ensure the highest software quality.
• Manage source code effectively using Git tools.
• Utilize CI/CD pipelines with TeamCity and Octopus Deploy to streamline the deployment process.
• Troubleshoot and resolve complex technical issues, applying critical thinking and problem-solving skills.
• Stay updated with emerging technologies and industry trends, evaluating their potential integration into our tech stack.
• Contribute to the continuous improvement of development processes and workflows.
• Ensure security best practices, collaborating with security teams to safeguard applications.

Project Leadership

• Lead and participate in the planning and execution of complex software projects, ensuring alignment with business objectives.
• Coordinate with Product Managers and Delivery Managers to define project requirements, timelines, and deliverables.
• Identify and mitigate technical risks, ensuring project success and application stability.
• Oversee the front-end and back-end development lifecycle, ensuring timely delivery of project milestones and product releases.

Mentorship and Team Development

• Provide mentorship to junior engineers, helping them develop their skills and understanding of best practices.
• Foster a collaborative and inclusive team environment, encouraging knowledge sharing and continuous learning.
• Facilitate training sessions and workshops to upskill team members and promote professional growth.

Quality Assurance

• Ensure the highest code quality by implementing and advocating for thorough testing practices, including unit tests, integration tests, and end-to-end tests.
• Collaborate with QA teams to establish testing strategies and ensure comprehensive test coverage.
• Implement performance optimization techniques, ensuring scalability and reliability for high-volume queries and transactions.
• Ensure security best practices, collaborating with security teams to safeguard applications.

Collaboration and Communication

• Work closely with UX/UI Designers to implement responsive, user-centric, and accessible designs.
• Collaborate with backend teams to ensure seamless integration and functionality of front-end components.
• Communicate complex technical concepts effectively to non-technical stakeholders, bridging the gap between technical and business teams.
• Contribute to the continuous improvement of development processes and workflows.

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