Senior Software Engineer Backend

A bit about the team and what youll deliver...

As a Senior Software Engineer - Backend youll join a collaborative highly skilled engineering team responsible for developing and operating Trustonics cloud platform which underpins secure services used by millions of connected devices worldwide. Working closely with Product QA DevOps and fellow engineers youll help shape the technical direction of our backend services while contributing to a culture of continuous improvement knowledge sharing and engineering excellence.

In this role youll deliver scalable secure and resilient cloud-native solutions that enable the rapid development of new platform capabilities. Your work will directly influence the reliability performance and scalability of our AWS-based services helping to ensure our customers receive robust high-quality solutions that meet the demands of a global enterprise-scale platform.

Please note this is a hybrid role with regular attendance required at our office in Winnersh.

As a Senior Software Engineer - Backend you will:

• Design build debug and deliver cloud-native features across the Trustonic platform from early development through production release. 
• Develop and enhance AWS-based microservices with strong focus on AWS Lambda SQS-driven workflows API Gateway and AppSync integrations. 
• Build reliable backend services in Python 3 (FastAPI/Flask) and support event-driven processing patterns for high-scale device operations. 
• Collaborate with QA and product engineering teams to improve release quality performance and resilience of ALPS services. 
• Lead or participate in architecture discussions design reviews and code reviews across multiple backend services. 
• Implement and promote SDLC best practices: requirements refinement test strategy CI/CD observability and production support. 
• Diagnose and resolve production defects performance bottlenecks and integration issues across distributed systems. 
• Support L3 operations incident response and post-incident improvements for business-critical AWS workloads.   

Who you are...

• Team player 
• Energetic and passionate about delivering great software in a rapidly growingenvironment 
• Prepared to invest whatever effort is required to get the jobdone 
• Operatewithintegrity and transparency and conduct business in a propermanner 
• Good creative intelligence 
• Tenacious with a problem-solving approach 
• Organised rigorous andautonomous

What makes you you...

Skills

• Python 3.10 - strong proficiency including type hints dataclasses and async patterns. 
• AWS Lambda Powertools (Logger Tracer Metrics) for observability. 
• FastAPI or Flask for containerised microservices. 
• Hands-on AWS expertise: Lambda SQS SNS Step Functions AppSync (GraphQL) API Gateway CloudWatch X-Ray IAM S3 and VPC fundamentals. 
• PostgreSQL RDS - schema design Alembic migrations query optimisation. 
• Redis - caching pub/sub distributed locks and idempotency patterns. 
• Serverless Framework v3 Docker (container-based Lambdas) Terraform Jenkins CI/CD. 
• Apache Airflow DAG authoring and AWS Glue with PySpark for batch ETL. 
• pytest and moto (offline AWS service mocking) Black formatter ruff linter. 
• Datadog APM tracing and structured JSON logging with Lambda Powertools. 
• Strong debugging skills across async event flows API behaviour and distributed systems. 
• Good working knowledge of Linux Git workflows and infrastructure as code. 

Experience and Knowledge

• A degree in computer science software engineering or equivalent experience 
• Proven commercial experience building Python-based AWS Lambda services in production. 
• Strong experience with PostgreSQL (schema design Alembic migrations) and DynamoDB (access patterns Streams). 
• Experience with event-driven architectures: SQS SNS Step Functions DLQ and retry patterns. 
• Hands-on AWS infrastructure experience: Serverless Framework v3 Terraform ECR IAM. 
• Experience deploying Docker container-based Lambda functions. 
• Data engineering background with Airflow DAGs and PySpark/Glue ETL pipelines is an advantage. 
• Multi-tenant SaaS platform experience at scale is desirable. 
• Familiarity with telecom OEM device management or IoT platforms is a plus. 
• Experience with CDC (Change Data Capture) and real-time data sync patterns is a plus. 
• Experience reading or maintaining Java Spring Boot services is beneficial.
• AWS certification is highly desirable but not essential  

Qualifications :

Additional Information :

What we can provide you in return for your investment...

Competitive compensation

• A base salary that reflects your expertise and impact.
• Bonus scheme to share in our success.

Financial security & wellbeing

• Immediate participation in our pension scheme.
• Private medical insurance for you and your family from day one.
• Income protection and life insurance for peace of mind.

Flexibility & work-life balance

• Hybrid working arrangements to support your lifestyle.
• An open holiday policy with no upper limittake the time you need when you need it.
• Support for volunteering and causes that matter to you.

Growth & development

• Opportunities for professional development and career progression.
• Exposure and interaction with global teams.

Inclusive supportive culture

• A commitment to diversity equity and inclusion.
• A collaborative environment where your voice is valued and your wellbeing is prioritised.

Impact & purpose

• The chance to work on technology that drives global economic inclusion and makes a real difference in peoples lives.

#LI-Hybrid

Trustonic is an equal opportunity employer.  We do not discriminate on any grounds. We empower engage enable and value differences between people including; different races ethnicities genders ages religions disabilities and sexual orientations with differences in education backgrounds skill sets experiences and knowledge.

Remote Work :

No

Employment Type :

Full-time