Netrolynx AI
Sr Node.js Engineer

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About The Company
Tesco is one of the world's leading retail companies, renowned for its commitment to providing high-quality products and exceptional customer service. With a rich history spanning over a century, Tesco has established a strong presence across multiple countries, continuously innovating to meet the evolving needs of its customers. The company prides itself on its dedication to sustainability, community engagement, and leveraging technology to enhance the shopping experience. Tesco's extensive network of stores, online platforms, and innovative solutions position it as a pioneer in the retail industry, committed to delivering value and convenience to millions of customers worldwide.
About The Role
Hackajob is collaborating with Tesco to connect them with exceptional professionals for this role. As a Backend Development Engineer, you will be an integral part of an agile team comprising industry-leading engineers tasked with defining and developing Tesco's Experience API (xAPI). This API powers a variety of Tesco's shopping experiences, including mobile applications, store systems, and internal-facing platforms. Your role will involve designing scalable, maintainable, and high-performance backend systems that support millions of users globally. You will work closely with product managers and other stakeholders to translate business requirements into innovative technical solutions, ensuring a seamless and engaging shopping experience for Tesco's customers.
In this position, you will utilize your expertise in modern backend technologies, cloud computing, and API development to build robust services that are secure, observable, and highly available. Your work will directly impact the customer journey, from product discovery to purchase and post-sale interactions. The solutions you develop will have a broad reach, supporting Tesco's vision of delivering a frictionless shopping experience across multiple channels and devices.
Reasons to use Rodeo
I’m in my final year doing Economics and I don’t know whether to apply for grad schemes now or do a masters first. What do you think?
Honest answer — it depends on where you want to end up. A lot of top grad schemes (Big 4, civil service, banking) don’t need a masters. Let’s look at the ones you’d be competitive for now, and we can decide if a masters actually adds anything.
Also worth knowing: most autumn 2026 applications are open now. Timing matters more than you think.
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Grad scheme, placement, apprenticeship? Not sure what you want yet — that's fine. Your agent talks it through with you and turns "I have no idea" into a shortlist.
Graduate Consultant — 2026 Scheme
Why you're a good match
StrongYour economics background and your summer at a regional bank line up with what PwC looks for on the consulting scheme. Applications close in four weeks.
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Every day your agent scans the market matching roles against what actually matters to you, not just keywords on a CV.
Why you're a good match
You’ve got the grades and the economics background, and your bank internship is exactly the experience this scheme looks for. Apply soon — deadlines close within the month.
Experience fit
Your summer at the bank plus your econometrics coursework map directly to the day-one responsibilities on this scheme — client modelling, market briefings, and deal support.
Only hits
No noise. No "maybe this fits." Just roles with a clear explanation of why they're right — and where to focus when applying.
Qualifications
We are seeking candidates with a strong passion for technology and extensive experience in backend development. The ideal candidate will have a minimum of 7+ years of professional experience as a backend software developer, with at least 4 years dedicated to building scalable backend systems using JavaScript, TypeScript, and Node.js. Familiarity with modern JavaScript frameworks such as Next.js and React.js, along with testing frameworks like Jest, Mocha.js, and Cucumber, is essential. Candidates should possess in-depth knowledge of microservices architecture, cloud deployment (Azure, AWS, GCP), and container orchestration tools like Docker and Kubernetes.
Proficiency in building and maintaining REST and GraphQL APIs, experience with distributed messaging systems like Kafka or RabbitMQ, and caching technologies such as Redis are highly desirable. A strong understanding of DevOps practices, Agile methodologies, and test-driven development (TDD, BDD, ATDD) will be instrumental in succeeding in this role. Candidates must demonstrate excellent problem-solving skills, the ability to write secure and maintainable code, and a collaborative mindset to thrive within a fast-paced, innovative environment.
Responsibilities
- Develop, deploy, and maintain scalable backend systems utilizing JavaScript, TypeScript, Node.js, and cloud technologies.
- Collaborate with product managers to understand business requirements and translate them into technical specifications.
- Write clean, secure, and maintainable code, adhering to best practices and coding standards.
- Automate deployment, testing, and monitoring processes to ensure high-quality deliverables.
- Profile, optimize, and refactor code to improve performance and reliability.
- Implement instrumentation for monitoring and observability of systems.
- Apply principles such as SOLID and cohesion to produce well-structured software solutions.
- Lead discussions on system design and contribute to architectural decisions.
- Support production systems by resolving incidents, performing root cause analysis, and implementing fixes.
- Share knowledge and mentor junior team members to foster continuous learning and improvement.
- Produce proof of concepts to evaluate new tools and technologies that can enhance development processes.


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Benefits
At Tesco, employees enjoy a comprehensive benefits package that promotes work-life balance and professional growth. This includes flexible working arrangements, competitive salary packages, and opportunities for career advancement. The company offers a supportive environment that encourages innovation, continuous learning, and collaboration. Additional benefits may include health insurance, retirement plans, employee discounts, and access to various training and development programs designed to enhance your skills and expertise.
Equal Opportunity
Tesco is an equal opportunity employer committed to fostering an inclusive environment where all employees and applicants are treated with fairness and respect. The company values diversity and encourages individuals from all backgrounds to apply, ensuring that everyone has the opportunity to contribute and succeed regardless of race, gender, age, religion, sexual orientation, or disability. Tesco believes that a diverse workforce enhances innovation and drives better business outcomes, and they are dedicated to maintaining a workplace free from discrimination and harassment.
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