At a Glance
- Tasks: Develop and enhance AWS-based microservices and backend services in Python.
- Company: Join Trustonic, a global tech company making smartphones affordable for everyone.
- Benefits: Competitive salary, bonus scheme, private medical insurance, and flexible working arrangements.
- Other info: Diverse and inclusive culture with excellent career growth opportunities.
- Why this job: Make a real impact on global economic inclusion through innovative technology.
- Qualifications: Strong Python skills, AWS expertise, and experience with PostgreSQL.
The predicted salary is between 67500 - 82500 £ per year.
At Trustonic, we make smartphones affordable for the many, enabling global access to devices and digital finance through the world’s most secure smartphone locking technology. We partner with mobile carriers, retailers, and financiers across 30+ countries, powering device financing solutions that drive economic inclusion, profitability, and growth.
Working here, you’ll find a company that celebrates its diversity and is looking to do the right thing: for each other, the community and the planet. If you would like to work in a fast-moving global technology company, with great ambition, then we’d love to hear from you!
As a Backend Developer, you'll join a collaborative, highly skilled engineering team responsible for developing and operating Trustonic's cloud platform, which underpins secure services used by millions of connected devices worldwide. Working closely with Product, QA, DevOps and fellow engineers, you'll help shape the technical direction of our backend services while contributing to a culture of continuous improvement, knowledge sharing and engineering excellence.
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 Backend Developer, you will:
- 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.
- 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.
Requirements:
- Energetic and passionate about delivering great software in a rapidly growing environment.
- Good creative intelligence.
- Python 3.10+ - strong proficiency including type hints, dataclasses, and async patterns.
- AWS Lambda Powertools (Logger, Tracer, Metrics) for observability.
- Hands-on AWS expertise: PostgreSQL RDS - schema design, Alembic migrations, query optimisation.
- Apache Airflow DAG authoring and AWS Glue with PySpark for batch ETL.
- pytest and moto (offline AWS service mocking), Black formatter, ruff linter.
- Good working knowledge of Linux, Git workflows, and infrastructure as code.
- 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).
- Hands-on AWS infrastructure experience: Data engineering background with Airflow DAGs and PySpark/Glue ETL pipelines is an advantage.
- 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.
Benefits:
- Competitive compensation.
- 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 limit—take the time you need, when you need it.
- Opportunities for professional development and career progression.
- A commitment to diversity, equity, and inclusion.
- The chance to work on technology that drives global economic inclusion and makes a real difference in people’s lives.
Programista / Backend Developer in Winnersh employer: Trustonic
Trustonic is an exceptional employer that fosters a collaborative and innovative work culture, allowing you to thrive in a dynamic cybersecurity SaaS environment. With opportunities for professional growth, competitive benefits including remote working, a robust pension scheme, and private medical insurance, Trustonic prioritises employee well-being and development, making it an ideal place for those seeking meaningful and rewarding careers.
