At a Glance
- Tasks: Design and develop high-quality software solutions for trading and operational processes.
- Company: Join SEFE, a leading international energy company focused on sustainability.
- Benefits: Inclusive environment, hybrid working model, and opportunities for professional growth.
- Other info: Contract role with potential for extension, based in London.
- Why this job: Make a real impact in the energy sector while mentoring the next generation of developers.
- Qualifications: Experience with .NET, C#, and enterprise-scale software development in complex environments.
The predicted salary is between 56250 - 68750 £ per year.
As a
Senior Developer , you will play a key role in designing, developing, and delivering business-critical applications that support the end-to-end trading lifecycle across SEFE’s trading organisation.
Combining hands‑on technical expertise with technical leadership and mentoring responsibilities, you will help shape the evolution of our trading technology landscape while supporting the development and growth of fellow engineers.
- WHAT WILL YOU DO
- Design, develop, and deliver high-quality, scalable, and maintainable software solutions that support trading, risk, and operational processes across the business.
- Collaborate with Technical Leads, Architects, QA, Functional Leads, and business stakeholders to ensure delivery priorities are aligned and solutions meet business and technical objectives.
- Provide technical leadership across a portfolio of applications, ensuring adherence to architectural principles, engineering standards, and best practices throughout the software development lifecycle.
- Drive continuous improvement by identifying and addressing technical debt, contributing to technology roadmaps, and promoting consistency across development frameworks, tools, and engineering practices.
Support system integration and cross-platform development activities, working closely with architects and development teams to deliver robust and sustainable technical solutions.
- Coach and mentor junior developers, supporting knowledge sharing, capability development, code quality, and engineering excellence across the team.
- WHAT WILL YOU BRING
- Proven experience delivering enterprise-scale software solutions using Microsoft .
NET, C#, Web API, SQL Server, and modern software engineering practices within complex business environments.
- Strong understanding of software architecture, object-oriented design, design patterns, SOLID principles, and modern development methodologies including CI/CD and Dev Ops practices.
- Experience working within trading, commodities, financial services, or other highly transactional and data-intensive environments, with an understanding of business-critical systems and delivery expectations.
- Strong technical leadership capabilities with experience conducting code reviews, influencing technical direction, and balancing long-term architectural goals with practical delivery needs.
- Passion for mentoring and developing others, with experience supporting junior developers and fostering collaborative, high-performing engineering teams.
- Excellent communication and stakeholder management skills, with the ability to explain complex technical concepts to both technical and non-technical audiences.
ABOUT US
SEFE is an international energy company anchored in Europe, delivering energy solutions that ensure reliable and affordable supply.
Our activities span the entire energy value chain – from origination and trading to sales, transport and storage.
With decades of trading expertise and a growing LNG portfolio, SEFE is one of Europe’s leading suppliers to industrial customers, providing more than 200 TWh of gas and power each year.
We supply over 50,000 clients, from small businesses to municipalities and multinational organisations.
By investing in clean energies, we support our customers on their decarbonisation journey and contribute to the energy transition.
SEFE employs over 2,000 people worldwide and is owned by the Federal Government of Germany.
Securing energy – now and for the future.
OUR BENEFITS
We’re committed to creating an inclusive environment that embraces diversity and fosters the development of knowledge, skills, and experience.
Whatever your role, you’ll find an open, welcoming atmosphere that empowers you, and recognises your contribution.
This is a contract role, initially for 6 months with the potential to extend.
Based in our London office, conveniently located close to travel networks we offer the opportunity to follow a hybrid working model.
Join SEFE and help us secure gas supply across Europe and shape a better, more sustainable tomorrow.
- Business Function: Information Technology
- #J-18808-Ljbffr
Senior Developer (LNG) employer: SEFE Group
SEFE is an excellent employer for those looking to make a significant impact in the energy sector, particularly as an Enterprise Architect – Cloud. With a commitment to inclusivity and professional development, employees benefit from a supportive work culture that encourages innovation and collaboration. Located in London, the company offers a hybrid working model, allowing for flexibility while being part of a dynamic team dedicated to driving cloud transformation and supporting the energy transition.
StudySmarter Expert Advice🤫
We think this is how you could land Senior Developer (LNG)
✨Get Involved in Open-Source Projects
Diving into open-source projects is a brilliant way to showcase your skills and connect with other developers in the community. Not only will you beef up your GitHub profile but you might also catch the eye of someone at SEFE Group who values hands-on experience over just theory.
✨Attend Local Tech Meetups
Tech meetups are gold mines for networking and discovering job opportunities, especially in the fast-paced world of software engineering. Check out local listings for events in your area and don’t shy away from introducing yourself. This could lead directly to a temporary position at SEFE Group!
✨Showcase Your Work Online
With temporary roles, it’s all about standing out in a short space of time. Create a portfolio website where you highlight your projects and skills. Talk about your code, and provide links to your GitHub repositories. This will not only demonstrate your abilities but will also make it easier for recruiters at SEFE Group to see what you bring to the table.
✨Leverage Temporary Job Boards
Don’t forget to check specialised job boards for temporary software development roles. Websites like We Work Remotely or Remote OK often list short-term gigs that can be a perfect fit. Apply directly through our website as well, making sure your application is sharp—temporary roles can move fast!
We think you need these skills to ace Senior Developer (LNG)
Some tips for your application 🫡
Show Off Your Tech Skills:Make sure your CV highlights your tech stack and any programming languages you’re proficient in. Include specifics about any frameworks or technologies you’ve worked with; they can make you stand out in the sea of applicants. It’s all about showing that you have the chops we need at SEFE Group!
Portfolio 2.0:Since you’re applying for a temporary gig, it’s super important to showcase a portfolio that highlights your best projects. Include links to GitHub or any personal projects that demonstrate what you can do in a real-world environment. This gives us a taste of your style and your problem-solving approach!
Keep It Brief and Relevant:With a temporary position, we want to see your ability to hit the ground running. Be concise in your CV and cover letter; stick to experiences that directly relate to the role. Highlight any previous temporary roles or freelance gigs that show your adaptability and quick learning!
Tailor Your Cover Letter:Don’t just send a generic cover letter. Personalise it for Senior Developer (LNG) at SEFE Group! Mention why this temporary role excites you and how you see yourself contributing in the short run. Show us what you've got and why you're the one for this quick turn-around!
How to prepare for a job interview at SEFE Group
✨Nail the Technical Skills
For a software engineering role, you'll likely face technical questions or coding tasks during your interview. Brush up on the relevant programming languages and frameworks that SEFE Group uses, and don’t forget to practice some coding challenges on platforms like LeetCode or HackerRank. Showing your coding prowess can really make you stand out!
✨Prepare for System Design Questions
Even for a temporary role, having a grasp of system design principles can be crucial. Be ready to discuss how you would architect a software solution, including discussing trade-offs, scalability, and performance considerations. Having examples from previous projects can really show off your analytical thinking.
✨Demonstrate Your Adaptability
Since this is a temporary role, you'll want to emphasise your ability to hit the ground running. Highlight experiences where you quickly adapted to new technologies or teams. Let’s make it clear to the interviewers at SEFE Group that you can learn on the job and deliver results in a short timeframe!
✨Show Off Your Portfolio
Make sure to have a portfolio or GitHub ready showcasing your projects. Having tangible evidence of what you've done—be it personal projects, contributions to open-source, or previous work—can convey how capable you are. Tailor this for what might interest SEFE Group, so it's relevant and sparks conversation during your interview.
