Senior Software Engineer

Two-Six-Technologies; Arlington (VA); On-site; USD 120,000 - 160,000; Full time

Benefits offered by this job

Medical Insurance

Dental Insurance

Vision Insurance

Life Insurance

Disability Insurance

Retirement Benefits

Paid Leave

Tuition Assistance

Professional Development

Job summary

Two Six Technologies in Arlington, VA is seeking a Senior Software Developer to build and support Go-based, high‑performance platforms within an Agile team.

You will design and maintain distributed services, work with Kafka/RabbitMQ, PostgreSQL, Redis, and microservices, and participate in code reviews to ensure quality.

This role requires TS/SCI eligibility and offers a comprehensive compensation package with medical, dental, retirement benefits, and professional development.

Qualifications

• 5+ years of Software Development experience or equivalent
• Strong proficiency in Go (Golang) including concurrent programming
• Deep understanding of Distributed Systems including fault-tolerant design and event-driven architectures
• Strong proficiency with databases including PostgreSQL, NoSQL like DynamoDB/Cassandra, and distributed caching like Redis

Responsibilities

• Implement complex platform architectures including distributed or decentralized topologies and APIs
• Participate in code reviews to ensure high-quality, reusable code
• Troubleshoot and optimize performance, latency, and database queries
• Provide maintenance and enhancements to data pipelines and backend systems
• Provide customer support for software systems and applications
• Stay up to date with industry trends and applying knowledge to improve backend architecture

Skills

Go (Golang)

Concurrency (Goroutines)

Distributed systems

Tools

Kafka

RabbitMQ

PostgreSQL

Redis

Job description

At Two Six Technologies, we build, deploy, and implement innovative products that solve the world’s most complex challenges today. Through unrivaled collaboration and unwavering trust, we push the boundaries of what’s possible to empower our team and support our customers in building a safer global future.

Overview of Opportunity

Two Six Technologies is hiring a SeniorSoftware Developer to support the customer’s mission-essential applications within an Agile Team. The developer will be responsible for the development and support of high-performance Go-based multi-domain platforms, leveraging a distributed database and messaging infrastructure on a decentralized compute mesh.

Location: Arlington, Va

What you will do:

• Implement complex platform architectures including, but not limited to, distributed or decentralized topologies, scalable and efficient data fabric, APIs, message queuing and event streaming, secure authentication and authorization, and containerization and orchestration.
• Participate in code reviews and ensure high-quality, reusable, and highly concurrent code.
• Troubleshoot and debug complex distributed systems issues, including performance optimization, latency reduction, and database query tuning.
• Provide continuous maintenance, support, and enhancements in existing data pipelines and backend systems.
• Provide customer support for software systems and application issues.
• Stay up to date with industry trends, and emerging technologies, applying this knowledge to improve our backend architecture.

What you will need:

• Minimum of 5+ years of Software Development experience, or the equivalent combination of education, technical training or work experience.
• Strong proficiency in Go (Golang), including experience with concurrent programming, Goroutines, and microservices architecture.
• Deep understanding of Distributed Systems, including fault-tolerant design, event-driven architectures (e.g., Kafka, RabbitMQ), and service mesh or discovery tools.
• Strong proficiency with Databases, including advanced relational schema design (e.g., PostgreSQL), NoSQL solutions (e.g., DynamoDB, Cassandra), and distributed caching (e.g., Redis).

Security Clearance:

• Eligibility to obtain and maintain a TS/SCI clearance

Two Six Technologies is committed to providing competitive and comprehensive compensation packages that reflect the value we place on our employees and their contributions. We believe in rewarding skills, experience, and performance. Our offerings include but are not limited to, medical, dental, and vision insurance, life and disability insurance, retirement benefits, paid leave, tuition assistance and professional development.

The projected salary range listed for this position is annualized. This is a general guideline and not a guarantee of salary. Salary is one component of our total compensation package and the specific salary offered is determined by various factors, including, but not limited to education, experience, knowledge, skills, geographic location, as well as contract specific affordability and organizational requirements.

Two Six Technologies is an Equal Opportunity Employer and does not discriminate in employment opportunities or practices based on race (including traits historically associated with race, such as hair texture, hair type and protective hair styles (e.g., braids, twists, locs and twists)), color, religion, national origin, sex (including pregnancy, childbirth or related medical conditions and lactation), sexual orientation, gender identity or expression, age (40 and over), marital status, disability, genetic information, and protected veteran status or any other characteristic protected by applicable federal, state, or local law. For more information review the Two Six TechnologiesEqual Employment Opportunity and Affictive Action Policy and theEEO Poster .

If you are an individual with a disability and would like to request reasonable workplace accommodation for any part of our employment process, please send an email to [e-mail] . Information provided will be kept confidential and used only to the extent required to provide needed reasonable accommodations.

Additionally, please be advised that this business uses E-Verify in its hiring practices.