---
title: 'Senior Software Engineer (.NET) at Metasite Business Solutions'
canonical: 'https://feeny.ai/job/senior-software-engineer-net-metasite-business-solutions-vilnius-6234j9dcch57'
type: 'job'
last_seen: '2026-09-09'
---

# Senior Software Engineer (.NET) at Metasite Business Solutions

- **Company:** Metasite Business Solutions
- **Location:** Vilnius, Lithuania
- **Employment:** full-time
- **Work type:** hybrid
- **Posted:** 2026-06-03
- **Last confirmed live:** 2026-09-09
- **Apply:** https://jobs.lever.co/metasite/f7b56d90-06b7-4036-9daa-ab31561a57fa

## Job description

At Metasite, we do bespoke digital platforms and applications design, engineering, integration and support for our clients. We're technology professionals who believe in the power of a dynamic flat-hierarchy culture, who constantly explore the latest IT trends and tools, and enjoy working in autonomous teams. Our systems architects, software developers, UI designers, QA engineers, business analysts and PMs offer a rare combination of deep understanding of the domain and bespoke software engineering excellence.

We are seeking Senior Software Engineers with deep expertise in .NET and C# to lead the design and development of mission-critical systems across client domain. You will play a key role in shaping technical strategy, driving architectural decisions within a high-performing team. Does this sound like the kind of work you’d enjoy? Then feel free to apply, we'd love to hear from you.

You will be:

- Leading the end-to-end delivery of complex software solutions, from requirements gathering and architecture design to development, testing, and production deployment
- Owning and driving long-term technical initiatives and architectural improvements across systems
- Collaborating closely with stakeholders to align technical solutions with business goals
- Championing engineering best practices, including CI/CD, automated testing, and scalable design patterns
- Conducting code reviews and providing technical guidance to peers and junior engineers
- Proactively identifying and reducing technical debt, improving system resilience, and optimizing performance
- Leading incident response and root cause analysis for production issues
- Balancing multiple priorities at once, new features, production issues, support requests, and releases;
- Operating day-to-day within the project tools, codebase, infrastructure, and processes as part of the project team.

You will need:

- 5-7+ years of professional experience in software engineering with C# and .NET
- Proven experience in architectural design, system scalability, and distributed systems;
- Financial services background would be considered as advantage;
- Strong knowledge of Microsoft SQL Server, including schema design, query optimization, and performance tuning;
- Ability to balance delivery of business value with long-term technical strategy;
- Excellent communication and leadership skills, with the ability to influence and drive consensus;
- Strong advocate for collaborative development practices and continuous improvement;
- Ability to work independently and drive things forward;
- Proficient in English, both written and verbal.

Nice to have:

- Experience with cloud platforms (e.g., Azure or AWS) and containerization (e.g., Docker, Kubernetes).

We offer:

- A choice of working in our central Vilnius office or remotely.

- A positive company culture with well-being benefits, private health and accident insurance, and flexible working hours.

- Opportunities for growth and professional development.

- A dedicated team ready to collaborate and drive collective success.

- Salary ranges from 5000 EUR gross (the given range is flexible and depends on your experience).

## About Metasite Business Solutions

## Company Overview
- **One-liner**: Metasite designs, builds, integrates, and supports bespoke financial platforms and digital solutions for global financial institutions, fintechs, and telecom companies.
- **Entity Type**: Private (Privately Held, bootstrapped)
- **Headquarters**: Vilnius, Lithuania
- **Founded**: 1997
- **Founders**: Aldas Kirvaitis and Sarunas Chomentauskas

## Core Business
- Primary industry: Financial technology (fintech) and telecommunications software development
- Target customers: Banks, hedge funds, insurers, commodities traders, financial information providers, stock exchanges, fintech/regtech startups, and telecom operators
- Mission statement: "We build lasting relationships, deliver excellence, and constantly seek better ways to serve our clients and partners." [metasite.net/careers](https://www.metasite.net/careers)

## Products & Services
- **Bespoke Financial Platforms**: Custom-built trading, risk, and portfolio management applications for capital markets and investment management clients.
- **Digital Customer Platforms**: White-label self-service portals for insurance, life & pensions (e.g., WTW pension platform).
- **Cloud-Based Valuation & Risk Modelling**: SaaS platform for derivatives pricing, analytics, and market risk (built for Solum Financial).
- **Messaging & Integration Hubs**: Support and development of critical messaging middleware for stock exchanges (e.g., SWIFT message routing).
- **Strategy, UX & Product-Centric Services**: Digital strategy, product design, and custom application development.
- **Technology-Centric Services**: Business intelligence, migration, customisation, application management, and enterprise integration.

## Market Standing
- **Valuation/Market Cap**: Not publicly available (private company)
- **Key Metric**: Headcount – approximately 80–100 professionals (about-us page states 80, LinkedIn reports 54 with -5.3% YoY, careers page says "100-strong team") [metasite.net/about-us](https://metasite.net/about-us) | [linkedin.com](https://linkedin.com/company/metasite-business-solutions)
- **Notable Clients/Partners**: Man Group, Nasdaq, Willis Towers Watson (WTW), Solum Financial, RSA, Vontobel, and "a Global Top 3 Stock Exchange"
- **Growth Signals**: 25+ years in business; ISO 27001 and ISO 9001 certified; insured by Lloyd's of London; expanded client base across UK, Switzerland, US, EU; recent projects include multi-tenant platform for WTW and cloud-based derivatives platform for Solum

## Competitive Advantages
- Deep domain expertise in financial instruments and products combined with bespoke software engineering excellence
- 25+ years of experience in financial technology with a senior-heavy team (over 45% senior professionals)
- Flat hierarchy and autonomous team culture enabling rapid decision-making
- ISO-certified quality and security processes with Lloyd's of London insurance coverage
- Strong track record with blue-chip financial institutions and stock exchanges

## Strategic Focus
- Continue serving financial institutions, fintechs, and telecoms with custom digital solutions
- Expand SaaS offerings (e.g., cloud-based risk platform)
- Maintain high engineering standards and deepen client relationships through agile delivery and ongoing support

## Why Work Here
- **Culture**: Flat hierarchy, dynamic, autonomous teams; "ideas come quickly" [metasite.net/careers](https://www.metasite.net/careers)
- **Flexibility**: Flexible working hours, unlimited work from home policy, workation up to 182 days per year, pet-friendly office
- **Benefits**: Health insurance, accident insurance, 2 fully covered sick days per year, loyalty days off after 3 and 5 years, psychological help, ergonomic office (nap room, bike storage, parking), community events (Summer/Winter Fests, team-building, sports)
- **Professional Development**: Annual learning budget, knowledge-sharing sessions, access to online learning platforms, senior colleagues (over 45%) accelerating growth
- **Location**: Office in central Vilnius (Šeimyniškių st. 19) with hybrid work model

## Sources
1. [metasite.net/careers](https://www.metasite.net/careers)
2. [metasite.net/about-us](https://metasite.net/about-us)
3. [linkedin.com/company/metasite-business-solutions](https://linkedin.com/company/metasite-business-solutions)
4. [metasite.net/our-work](https://metasite.net/our-work)
5. [jobs.lever.co/metasite](https://jobs.lever.co/metasite/04e7c21d-8681-4e2e-b486-93950b512e8f)

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