Tim Stephenson

Full Stack Developer – Python | AWS | Django

+44 77988 67607 | tim@knowprocess.com
https://linkedin.com/in/stephensontim | https://github.com/tstephen

Professional Summary

Versatile and engineering-led Full Stack Developer with over 10 years of experience designing and implementing scalable cloud solutions. Technical skills focused on Python, FastAPI and cloud hosting services (including AWS Lambda, Kubernetes, Postgres), with a strong foundation in Java EE from earlier in my career. Proven ability to bridge backend services with modern front-end frameworks (Svelte, Vue preferred), delivering reliable, cloud-native solutions in agile environments.

Technical Skills

  • Languages & Frameworks: Python, Django, Java, JavaScript, TypeScript, HTML, CSS

  • Cloud & DevOps: AWS Lambda, Kubernetes, API Gateway, S3, DynamoDB, Docker

  • Databases: PostgreSQL, MySQL, DynamoDB

  • Frontend: Svelte, Vue.js, Bootstrap, Tailwind

  • Tools & Other: Git, Github Actions, Terraform, REST APIs, OpenAPI (Swagger)

Professional Experience

Full Stack Developer

Elsevier – Remote / London
March 2022 – Present

  • Developed and maintained serverless applications using AWS Lambda, API Gateway, and DynamoDB, delivering insights on securing and optimising cost and reliability of cloud applications.

  • Designed RESTful APIs and integrated them into frontend apps.

  • Advising on migrating legacy Java backend services into cloud hosting, improving scalability and maintainability.

  • Responsibility for implementing CI/CD pipelines initially with Jenkins then migration to and maintaince on GitHub Actions.

Full Stack Developer (Java, Python, Process Automation)

KnowProcess (Freelance)
Feb 2013 - Mar 2022

Business automation and digital transformation consulting. Implementation of BPMN and DMN based software services. Highlighted projects below:

2019-2021 Several Government departments

  • Requirements gathering, modeling and service design to the Government Digital Service (GDS)’s Service Standard.

  • Initial training of the architecture team and ongoing consultancy.

  • Subject matter expert in business process automation (BPMN, Java microservices, web UI).

  • Security Cleared (SC) role.

2015-2022 Sustainable Reporting Portal (SRP) for Greener NHS (part of NHS England)

  • Bid for, delivered and operated the Carbon and other reporting system for NHS England over a number of years.

  • Responsible personally for the architecture, outsourced delivery and customer management throughout the project.

  • Initial development was about a year with ongoing hosting and approx. 3 months enhancements and bug fixes per year.

  • Initially a monolithic architecture on a VPS this migrated to microservices to be more resilient and cloud native (Kubernetes) whilst maintaining the service availability.

2014-2022 Omny Link CRM and Workflow

  • Startup offering SaaS to SMEs

  • Full software lifecycle on lightweight CRM and workflow

2013-2016 Climate KIC (start-up incubator at Imperial College)

A software start-up for tracking and managing down carbon emissions. Ultimately transitioned to the SRP project work above.

Feb 2012 - Jan 2013: Lead Architect, Helveta

  • Reporting to company board, responsible for design and delivery of next generation sustainable supply tracking product for timber industry.

  • Initiated new product development team (offshore) and establishment of agile development practices.

  • Mentoring to team leads on technology issues including hands-on, whiteboard activities and everything in between.

Dec 2010 - Feb 2012: Technical founder, pailz.com

  • A startup Team Collaboration SaaS.

  • Design and implementation. Front end in Python (Django), back end in Java both hosted on Google App Engine/

  • Participant and editor on Workflow Management Coalition (WfMC)'s Business Process Simulation standard.

Jan 2004 - Nov 2010: Engineering Director, TIBCO Software Inc. (previously Staffware)

  • Reported to VP of Business Process Management engineering team with frequent interaction with other engineering and marketing managers at SVP, VP and Director level.

  • Driving force behind the award winning TIBCO Business Studio modelling environment from conception to v3, which, to quote a customer is “revolutionising what we can achieve with BPM”

  • Regularly asked to speak to internal and customer audiences (2-200 people) on the BPM vision and how Studio facilitates it.

  • Championed an Agile development culture of shared responsibility and continuous process improvement and test-driven development.

  • Lead the team through two major transitions, mentoring each individual, especially the promotion of two into team leaders as the team grew.

  • Product visions and roadmaps, requirements specifications, user guides and training materials.

  • Responsible for all aspects of delivery of the vision for a BPM-SOA enabled solution for the Insurance market with the goal of an order of magnitude increase in deal size.

  • Hired and formed a new delivery team to build out the solution.

Previously

  • Jun 2003 - Dec 2003: Consultant at Hummingbird, UK

  • Oct 2001 - Mar 2003: Technical Specialist with Technology One, Australia

  • Oct 1998 - July 2001: Principal Consultant with Sybase Professional Services, UK

  • Aug 1997 - Oct 1998: Analyst / Developer with Admiral Computing, now LogicaCMG

Education

Master of Engineering (Hons) in Mechanical Engineering
University of Manchester, 1997

Standards and Projects

  • OMG BPMN Model Interchange Working Group – Over a decade of participation in annual demos driving interoperability of the BPMN standard across vendors.

  • Flowable – Open-source BPMN and DMN engine, contributing to the core engine and documentation.

  • OMG BPMN 2.0 – Contributed to the Object Management Group’s BPMN 2.0 standard, including process modelling and simulation.