Sr. Software Engineer

We are looking for a Senior Systems Engineer with 10+ years of experience in systems-level engineering (Rust/C/C++), including 5+ years of production Rust, to design and build high-performance, low-latency, fault-tolerant trading infrastructure. Prior hands-on experience with financial trading systems is mandatory.

Responsibilities

1. Design, develop, and maintain high-performance backend services using Rust - Build scalable and reliable distributed systems capable of handling high request volumes - Optimize application performance, memory usage, and resource utilization - Design clean, maintainable, and well-tested software architecture
2. Collaborate with product, engineering, and DevOps teams to deliver production-ready solutions
3. Participate in architecture discussions, code reviews, and technical planning - Troubleshoot production issues and improve system reliability and observability - Write clean, well-documented, production-quality code following engineering best practices

Required Qualifications

1. 10+ years of professional systems programming experience in Rust, C, or C++ (5+ years production Rust)
2. Mandatory: hands-on experience with financial trading systems — exchanges, order books, matching engines, OMS/RMS, or market data systems (equities, F&O, FX, commodities, or crypto)
3. Strong understanding of exchange mechanics — order types, price-time priority matching, spot trading, derivatives (futures/perpetuals), options, margining and liquidation concepts
4. Strong experience building production-grade, low-latency, high-throughput backend applications
5. Solid understanding of distributed systems and concurrent programming — Raft/consensus, replication, snapshots, deterministic state machines, exactly-once semantics
6. Advanced concurrency: lock-free/wait-free structures, ring buffers, thread-per-core design, core pinning
7. Strong understanding of networking concepts — TCP/IP, UDP, multicast, real-time communication, asynchronous networking
8. Experience designing and implementing binary communication protocols for inter-service communication (SBE, Protocol Buffers, FlatBuffers, Cap'n Proto)
9. Experience with microservices architecture and event-driven systems - Experience with messaging systems such as Aeron, Kafka, NATS, or similar high-performance platforms
10. Strong understanding of in-memory data structures and efficient memory management — cache lines, memory ordering, NUMA, allocation-free design
11. Experience working with relational databases and caching systems
12. Experience working in Linux-based production environments
13. Familiarity with containerization and modern deployment practices
14. Strong debugging, profiling, and benchmarking skills (perf, flamegraphs, Criterion) - Excellent problem-solving and analytical abilities; ability to work independently and take ownership of technical deliverables

Preferred Technical Experience

1. Tokio, Tonic (gRPC), Serde, Tracing, Criterion, Cargo/Clippy/Rustfmt - Aeron, LMAX Disruptor, Chronicle, or FIX engines
2. Kernel-bypass networking concepts (io_uring, DPDK, AF_XDP); hardware timestamping
3. Lock-free or wait-free programming techniques
4. Options pricing / Greeks / volatility surface exposure

Preferred Qualifications

1. Experience designing highly available and fault-tolerant systems (active-active, consensus-based failover)
2. Deterministic simulation / property-based testing of stateful systems
3. Exposure to cloud infrastructure and production monitoring tools
4. Open-source contributions (openraft, TigerBeetle, tokio, etc.) or personal Rust systems projects

Selection Process

1. 3 Rounds of Technical Interview
2. 1 Round of Management Interview
3. Shortlisting based on work evidence (repo/PR/design doc/write-up of a hard problem solved)
4. Systems design deep-dive (order book / matching engine design), hands-on coding round, distributed systems round

JD for .Net:

• Strong knowledge on C#, Asp.Net Web forms and Web API

• Experience with Bootstrap, jQuery and Responsive web designing

• Experience with SQL server, Stored Procedure and performance tuning

• Excellent Problem solving, communication and Debugging skills

• Ability to learn and work on new technology in a short span of time

• Extensive experience with Object- Oriented Programming and Design patterns.

• Knowledge on .NET Core, Elastic Search, Knockout JS, Windows services are added advantage.

Designation : Senior Developer

Position -Permanent

Job Location – Remote

Experience- Min 5 Years

Notice Period: Immediate To 45 Days

About Payroll Company: TSG Global Services Pvt. Ltd (UnisolTSG Group).(http://www.unisoltsg.com/">www.unisoltsg.com)

From a humble beginning in 1999, TSG is now wings-spread into IT Solutions, ERP Solutions, Technology & solutions.Though head quartered in Kolkata. http://www.unisoltsg.com/about.html#collapseOne-alt3">TSG has been the steady Solutions Partner to multinational giants .TSG operates pan India bases having regional operations in Bangalore, Noida, Mumbai. Overseas operation spread across Middle-East, USA and Africa.When it comes to your IT deployment you need only the best.

• Software Solutions - Products and Services
• On-demand Staff Augmentation

•  Managed SLAs

• • 3 Years experience in Asp.Net, C# ,MVC development• Must be able to design and implement across all layers of the software• Capable of creating High level and low-level design document
• • Exposure to debugging , troubleshooting and performance
• • At least basic client side knowledge of Web technologies, JS, HTML, CSS

• should have at least 5 years of proven experience in .net core with entity framework
• You need to work on the existing .net application to create new web APIs with the latest standards using the .net core in the entity framework
• Should have expertise in .net core using the entity framework
• Should be expertise in C# programming & OOPS concepts
• Should have good professional experience in ASP.Net, .Net Core, entityframework, ASP.Net MVC & Web API
• Expertise in .Net framework & Class libraries
• Very strong understanding of JSON, XML, XSD, XSLT
• Very strong knowledge of Web deployment & IIS
• Expertise in exceptional handling & best practices
• Good knowledge on SQL server & SQL
• Should have good communications skills
• Should be a Quick learner
• Should work independently
• Education qualification is graduation
• Expertise in building the APIs for the data-driven application
• Good to have the Azure deployment experience.
• Should be proactive and bring new ideas to the team
• Able to deep dive into code to fix the issues
• Should be expertise in creating and modifying the existing APIs

1. 1.5+ Years of experience in .net, asp.net and C#, WCF/API and REST services.
2. Hands on experience with CSS, Javascript and JQuery.
3. Strong knowledge in OOPS concepts.
4. Knowledge of T SQL with Sql server 2008 R2/2012 including Stored Procedures, Triggers & User Defined Functions.
5. Good to have CSS3 and HTML5 knowledge.
6. Good communication Skills are required.