Technical Lead / Senior Software Developer

TGS company; Remote; GBP 70,000 - 90,000; Full time

Job summary

A leading energy solutions firm in the UK is seeking an experienced Senior/Lead Developer to architect and optimize complex web applications. This position requires hands-on coding with a focus on technical leadership, collaboration with cross-functional teams, and best coding practices. Candidates should have expertise in ReactJS and Node.js, along with a strong understanding of cloud technologies. The role offers remote work flexibility and a competitive package within an inclusive culture.

Benefits

Competitive salary

Learning & Growth opportunities

Flexible work options

Collaborative environment

Qualifications

• Proven experience in leading the development of web applications.
• Strong understanding of cloud infrastructure and containerization.
• Experience mentoring and guiding technical teams.

Responsibilities

• Lead design and development of high-performance applications.
• Build features using ReactJS and Node.js, ensuring coding standards.
• Mentor engineers and lead technical discussions.

Skills

ReactJS

Node.js

C#

JavaScript (ES6+)

TypeScript

MongoDB

PostgreSQL

SQL Server

RESTful APIs

GraphQL

Jest

Tools

Docker

Kubernetes

AWS

Azure

GitHub

Jira

Confluence

M365

Job description

TGS | 4C is a global leader in offshore wind intelligence and energy data solutions. We provide cutting‑edge subscription‑based platforms and market insights that empower the renewable energy industry to make informed decisions. Our mission is to deliver innovative, scalable, and secure software solutions that support the transition to sustainable energy worldwide across all sectors.

We are seeking an experienced and highly skilled Senior/Lead Developer to architect, develop, and optimize complex web applications for our data‑driven platforms. This role combines hands‑on coding with technical leadership, ensuring best practices across the full development lifecycle. You will collaborate with product managers, architects, and cross‑functional teams to deliver robust, scalable solutions.

Key Responsibilities

Architecture & Design

• Lead the design and development of scalable, high-performance applications.
• Define and enforce coding standards, best practices, and architectural guidelines.
• Collaborate with stakeholders to design system solutions aligned with business goals.

Development & Technical Leadership

• Build end‑to‑end features using ReactJS/Next.js (frontend) and Node.js (backend).
• Design and implement APIs (RESTful and GraphQL where appropriate).
• Integrate with relational and NoSQL databases (SQL Server, PostgreSQL, MongoDB).
• Ensure comprehensive test coverage through unit and integration testing.

Mentorship & Collaboration

• Mentor and guide engineers, fostering technical growth within the team.
• Lead technical discussions, proof‑of‑concepts, and design reviews.
• Work closely with UX/UI, QA, and DevOps teams to ensure seamless delivery.

Technical Expertise

• Frontend: ReactJS, Next.js, modern UI principles.
• Backend: Node.js, ASP.NET (C#), Spatial Data
• Languages: JavaScript (ES6+), TypeScript, C#
• Databases: SQL Server, PostgreSQL, MongoDB.
• APIs: RESTful, GraphQL.
• Testing: Jest or similar frameworks.
• Cloud Infrastructure: DevOps/AWS/Github/Jira/Confluence/M365

Preferred Skills

• Experience with cloud platforms (Azure/AWS) and containerization (Docker/Kubernetes).
• Familiarity with Agile/Scrum methodologies.
• Strong knowledge of performance optimization and security best practices.
• Experience with CI/CD pipelines and Infrastructure as Code.
• Excellent leadership, problem‑solving, and communication skills.

Our Ambition and Values

Our Ambition

• To enable energy for all by unlocking vital, data‑driven solutions and knowledge.

Our Values

• Passionate: We bring curiosity, energy, and innovation to drive progress.
• Results‑Driven: We take ownership to create value and deliver lasting impact.
• Collaborative: We build trust through openness, inclusion and shared success.
• Responsible: We are accountable to our customers, shareholders, communities and each other.

What We Offer

• Impactful Work: Contribute to projects shaping the future of renewable energy.
• Learning & Growth: Access to training, certifications, and career development programs.
• Flexibility: Remote work options and a healthy work‑life balance.
• Inclusive Culture: Collaborative, innovative, and supportive environment.
• Competitive Package: Attractive salary and benefits.

If you are passionate about cloud technology and developer platforms, and ready to help evolve our multi‑cloud strategy, please submit your application by 01/16/2026.