Senior Software Engineer

Commify

Nottingham

Hybrid

GBP 65,000 - 75,000

Full time

14 days+

Get more replies from employers

Send a job-specific resume in minutes.

Benefits offered by this job

Competitive Salary

Company Bonus Scheme

Comprehensive healthcare cash plan

27 days annual leave

Wellbeing leave

Birthday off

Pension 5%

Death in service 4x salary

Annual awards

Social events

Training & development

Flexible hybrid work

Job summary

Commify is hiring a Senior Backend Engineer to own complex backend services and database systems. You will drive architectural decisions, elevate engineering standards, and mentor the next generation of engineers while collaborating with Product Owners to shape meaningful outcomes.

You will work in an agile, hybrid environment across the UK, with a focus on Azure-based platforms, security, performance, and cost-efficiency.

Qualifications

Strong backend design and implementation skills in C#/.NET.
Experience with distributed architectures and messaging patterns.
Solid SQL skills and cloud platform experience (Azure).
Testing discipline for unit and integration tests.
Pragmatic AI usage in development processes.
DevOps mindset with experience in CI/CD and Git workflows.
Clear communication and mentoring abilities.

Responsibilities

Design, develop, test, and refactor complex backend services and databases.
Lead architectural decisions and elevate engineering standards.
Mentor engineers and drive code reviews across the team.
Collaborate with Product Owners to shape acceptance criteria.
Build and improve CI/CD pipelines and observability.
Ensure security, performance, and cost-efficiency in platforms.

Skills

C#/.NET

Distributed Systems

SQL

Azure

Unit & Integration Testing

DevOps CI/CD

AI Coding Tools

Communication & Leadership

Tools

Azure

Bicep

Terraform

Angular

Job description

At Commify, we're not just a company, we're a globally connected team of innovators who love what we do. As a CPaaS leader with 25 years of groundbreaking experience, we're the force behind over 7 billion customer interactions each year, enabling businesses worldwide to connect via advanced channels like SMS, RCS, and complex mobile journeys.

Our culture is our core strength. Operating across the UK, EMEA, the USA, and Australia, we've fostered a truly diverse and connected environment, earning a consistent 4 out of 5 culture score in our employee engagement surveys. You'll join a vibrant team where your diverse experience makes a daily global impact.

We need talented people to grow a global company where everyone feels proud to belong, have a purpose and do their best to directly shape the digital future.

We are looking for an exceptional Senior Backend Engineer to take ownership of complex backend services, database systems, and key technical outcomes.

In this role, you won't just be writing code—you’ll be driving architectural decisions, elevating engineering standards across the team, and mentoring the next generation of engineers. You will work closely with Product Managers and Owners to refine requirements, balancing functional features with resilience, performance, security, and cost-efficiency.

If you thrive in an agile environment, value software craftsmanship, and enjoy moving platforms forward, we’d love to hear from you.

What You’ll Be Doing

Architecture & Development: Design, build, test, and refactor complex, loosely coupled backend services and database systems in C#/.NET.
Platform Modernisation: Support our ongoing architecture evolution, including migrating serverless workloads over to containerised services.
Engineering Culture & Mentorship: Lead code reviews, mentor fellow engineers, and raise the bar for software development methods, security practices, and testing approaches.
Product Collaboration: Work directly with Product Owners to shape acceptance criteria, focusing on real-world customer outcomes rather than code alone.
DevOps & Quality: Build and improve CI/CD pipelines, manage observability (logging, metrics, monitoring), and partner with QA to ensure solid test coverage across the Agile pyramid.
Pragmatic Design: Evaluate design trade-offs, manage technical debt responsibly, and build security into systems from day one.

What We’re Looking For

Essential:

Core Tech Stack: Strong, proven expertise in designing and building backend services with C#/.NET.
Distributed Systems: Experience building loosely coupled architectures using event-based or message queue patterns.
Data & Cloud: Strong SQL skills (database design and query optimization) and experience operating services on a major cloud platform (we run exclusively on Azure, but equivalent AWS or GCP experience transfers smoothly).
Testing & Quality: A firm discipline in unit and integration testing as an integral part of your workflow.
Pragmatic AI Usage: Practical, day-to-day experience using AI coding assistants as part of your development process— with the critical mindset to review, adapt, or reject generated code.
DevOps Mindset: Comfortable working in agile environments with Git and CI/CD pipelines.
Communication & Leadership: Ability to explain complex technical concepts clearly to non-technical stakeholders, along with a track record of mentoring team members.

Desirable (Bonus points if you have):

Experience with modern .NET versions (we are moving to .NET 10) and native Azure services.
Experience with Infrastructure as Code (we use Bicep; Terraform experience is equally welcome).
Familiarity with both serverless and containerised infrastructure.
Full-stack capabilities or frontend experience with component frameworks like Angular.
Experience with high-throughput transactional messaging (SMS, IP messaging).
Experience leveraging AI tools beyond code generation (e.g., test generation, refactoring, documentation).