Senior Software Engineer (front-end)

Leversys; Belgrade (MO); On-site; USD 120,000 - 165,000; Full time

Benefits offered by this job

Hybrid working structure

Top of the market remuneration

Twenty-five days holiday, pro‑rata

Personal development support

Sponsorship to enhance your skills

Job summary

Leversys, a leading fintech specializing in convertible bonds technology, data and services, is seeking a Senior Software Engineer (front-end) to join a small, high‑performing team in a hybrid setup in Missouri. You will own frontend features from concept through delivery, collaborate with product leads, and contribute to a cloud SAAS platform and on‑premise version.

We value strong JavaScript skills, experience with React/Angular/Vue, HTML/CSS, testing with Jest, and a willingness to learn the

Qualifications

• At least four years of relevant experience as a JavaScript front-end developer.
• Strong foundation in programming, data structures, and algorithms.
• Strong knowledge of a major UI framework such as Angular, React, Vue.js, or similar.
• Strong knowledge of HTML5, CSS3, and responsive web design principles.
• Significant experience developing complex, high-quality user interfaces and front-end applications.

Responsibilities

• Join a product development team involved in the full delivery lifecycle from concept to release.
• Turn ideas and client requirements into shipped features with ownership throughout.
• Collaborate with a small team of senior engineers in a high‑standards environment.
• Contribute to onboarding, architectural understanding, and domain exposure.
• Build mission-critical applications for a specialised financial market with an established client base.
• Work on both a cloud-based SaaS platform and an on-premises version.
• Propose ideas and take ownership across the product lifecycle.
• Grow across the stack with support from experienced engineers.

Skills

JavaScript

Front-end framework

HTML/CSS

UI development

Git

RESTful APIs

Jest testing

Financial UI

English communication

Analytical skills

Willingness to learn

Attention to detail

Education

Bachelor's degree in CS/Engineering

Tools

Jest

.NET/C#

RESTful APIs

Git

Job description

Do you want to be part of the team behind the leading convertible bonds technology, data, and services?

Founded in 2010, Leversys provides trading and risk management systems, data products, and related services to leading global investment banks and many of the world’s top 50 hedge funds.

The company is a dynamic, small, flat-structured organization with offices in major global financial centers.

Leversys’ valuation model, systems, and data are recognized as among the market leaders in the convertible bonds space.

Following the launch of the Marketspace platform, Leversys is entering an exciting scale-up phase, aiming to play a leading role in the digitalization of the convertibles market.

This creates opportunities for team members to make a meaningful impact while growing alongside the business as the product offering continues to expand.

As a Senior Software Engineer (front-end), you will:

• Join a product development team involved in the full delivery lifecycle, from concept and specification through UI design, development, QA, and release.
• Work closely with product leads to turn ideas and client requirements into shipped features, with real ownership throughout.
• Collaborate with a small team of senior engineers where knowledge sharing is natural, standards are high, and ideas are encouraged.
• Follow a structured onboarding plan that combines early codebase contributions, architectural understanding, and exposure to the convertible bond domain.
• Contribute to a product company that builds and owns its platform, giving your work lasting impact and visibility from problem definition to delivery and growth.
• Build mission‑critical applications for a specialised financial market with an established client base, keeping the engineering work purposeful and technically engaging.
• Work on both a cloud‑based, globally distributed SaaS platform and an on‑premises version.
• Propose and implement ideas rather than simply execute assigned tickets, with engineering input valued throughout the product lifecycle.
• Grow across the stack with support from experienced engineers and exposure to frontend, backend, services, and integrations.
• Strengthen your technical expertise while building enough convertible bond knowledge to make better engineering decisions.
• Gain experience in a specialised financial domain that few engineers encounter, adding long‑term depth and market value to your profile.

What we’d like you to bring to Leversys:

• At least four years of relevant experience as a JavaScript front‑end developer.
• Strong foundation in programming, data structures, and algorithms.
• Strong knowledge of, and experience with, a major UI framework such as Angular, React, Vue.js, or similar.
• Strong knowledge of, and experience with, HTML5, CSS3, and responsive web design principles.
• Significant experience developing complex, high‑quality user interfaces and front‑end applications.
• Ability to build precise, scalable user interfaces from wireframes and UI designs.
• Familiarity with Git or similar version control tools.
• Desirable: experience working with RESTful APIs.
• Desirable: exposure to C#/.NET.
• Desirable: experience unit testing front‑end applications using Jest or a similar framework.
• Desirable: experience with financial software, large data grids, or data visualisation.
• A strong desire to learn, develop, and succeed.
• A commitment to achieving high standards.
• Strong attention to detail.
• Creativity and passion for building products.
• Ability to work with complex mathematical and financial concepts.
• Excellent analytical skills and a structured, logical approach to complex problem‑solving.
• Strong written and verbal communication skills in English.
• Ability to explain complex technical concepts clearly to both technical and non‑technical stakeholders.
• Strong interpersonal skills.
• Comfort working in a dynamic, multi‑tasking environment.
• A bachelor’s degree or higher in Computer Science, Engineering, or a related quantitative field from a leading institution.

In return, Leversys offers you:

• A genuine opportunity to have an impact and grow your career in established capital markets FinTech.
• The ability to develop and apply a unique blend of knowledge and skills.
• The scope to work on exciting and highly dynamic projects and interact with clients.
• Personal development support.
• Sponsorship to enhance your skills and continue your education.
• An effective hybrid working structure.
• Top of the market remuneration, based on the experience level.
• Twenty‑five days holiday, pro‑rata.

This is your opportunity to work with a company that actively looks to its people to take charge, come up with ideas and innovate.

We look forward to hearing from you.